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142. R. SCHMIDT
Photochem. Photobiol. Sci., 11, 1004-1009 (2012)
Photochemistry and photophysics of the endoperoxide of mesodiphenylhelianthrene. A contribution to the localization of the S1(s*p*) state
of aromatic endoperoxides

141. V. HAGEN, F. KILIC, J. SCHAAL, B. DEKOWSKI, R. SCHMIDT und N. KOTZUR
J. Org. Chem., 75, 2790-2797 (2010)
[8-[Bis(carboxymethyl)aminomethyl]-6-bromo-7-hydroxycoumarin-4-yl]methyl Moieties as Photoremovable Protecting Groups for
Compounds with COOH, NH2, OH, and C=O Functions

140. F. KILIC, N. D. KASHIKAR, R. SCHMIDT, L. ALVAREZ, L. DAI, I. WEYAND, B. WIESNER, N. GOODWIN, V. HAGEN und B. U. KAUPP 
J. Am. Chem. Soc., 131, 4027-4030 (2009)
Caged Progesterone:A New Tool for Studying Rapid Nongenomic Actions of Progesterone

139. D. V. KAZAKOV, F. E. SAFAROV, V. P. KAZAKOV und R. SCHMIDT
Mendeleev Comm., 18, 249-250 (2008)
A new bright chemiluminescent reaction: interaction of acetone with solid-phase potassium monoperoxysulphate in the complex of europium nitrate

138. R. SCHMIDT, D. GEISSLER, V. HAGEN und J. BENDIG
J. Phys. Chem. A, 111, 5768-5774 (2007)
The Mechanism of the Photocleavage of (Coumarin-4-yl)methyl Esters

137. A. ABDEL-SHAFI, M. D. WARD und R. SCHMIDT
Dalton Transactions, 2517-2527 (2007)
Solvent Isotope Effect and Photosensitized Generation of Singlet Oxygen, O2(1Dg), by [Ru(diimine)(CN)4]2- Complex Ions

136. D. V. KAZAKOV und R. SCHMIDT
J. Phys. Chem. A, 111, 4274-4279 (2007)
On the Effect of 1,4-Diazabicyclo[2.2.2]octane on the Singlet-Oxygen Dimol Emission: Photosensitized Generation of (1O2)2

135. D. V. KAZAKOV, V. P. KAZAKOV, G. Y. MAISTRENKO, D. V. MAL’ZEV und R. SCHMIDT
J. Phys. Chem. A, 111, 4267-4273 (2007)
On the Effect of 1,4-Diazabicyclo[2.2.2]octane on the Singlet-Oxygen Dimol Emission: Chemical Generation of (1O2)2 in Peroxide Reactions

134. C. PIERLOT, V. NARDELLO, R. SCHMIDT und J.-M. AUBRY
Arkivoc, 7, 245-256 (2007)
Determination of physical (kq) and chemical (kr) rate constants for singlet oxygen quenching using the thermolysis of a naphthalenic endoperoxide in H2O and D2O

133. R. SCHMIDT
Photochem. Photobiol., 82, 1161-1177 (2006)
Photosensitized Generation of Singlet Oxygen

132. F. RUYFFELAERE, V. NARDELLO, R. SCHMIDT und J.-M. AUBRY
J. Photochem. Photobiol. A: Chemistry, 183, 98-105, (2006)
Photosensitizing properties and reactivity of aryl azo naphtol dyes towards singlet oxygen

131. R. SCHMIDT
J. Phys. Chem. A, 110, 7749 (2006)
Comment on “Quenching Mechanism of Rose Bengal Triplet State Involved in Photosensitization of Oxygen in Ethylene Glycol”

130. R. SCHMIDT
J. Phys. Chem. A, 110, 5990-5997 (2006)
The Effect of Solvent Polarity on the Balance Between Charge Transfer and non-Charge Transfer Pathways in the Sensitization of Singlet Oxygen by pp* Triplet States

129. R. SCHMIDT
J. Phys. Chem. A,
110, 2622-2628 (2006) 
Quantitative Determination of 1Sg+ and 1Dg Singlet Oxygen in Solvents of Very Different Polarity. General Energy Gap Law for Rate Constants of Electronic Energy Transfer to and from O2 in the Absence of Charge Transfer Interactions

128. V. HAGEN, B. DEKOWSKI, V. NACHE, R. SCHMIDT, D. GEISSLER, D. LORENZ, J. EICHHORST, S. KELLER, H. KANEKO, K. BENNDORF und B. WIESNER
Angew. Chem. Int. Ed. 44, 7887-7891 (2005)
Coumarinylmethyl Esters for Ultrafast Release of High Concentrations of Cyclic Nucleotides upon One- and Two-Photon Flash Photolysis

127. R. SCHMIDT, D. GEISSLER, V. HAGEN und J. BENDIG
J. Phys. Chem. A, 109, 5000-5004 (2005)

Kinetics Study of the Photocleavage of (Coumarin-4-yl)methyl Esters

126. R. SCHMIDT
Photochem. Photobiol. Sci., 4, 481-486 (2005)
The balance between charge transfer and non-charge transfer pathways in the sensitization of singlet oxygen by pp* triplet states

125. D. GEISSLER, Y. N. ANTONENKO, R. SCHMIDT, S. KELLER, O. O. KRYLOVA, B. WIESNER, J. BENDIG, P. POHL und V. HAGEN
Angew. Chem. Int. Ed., 44, 1195-1198 (2005)
(Coumarin-4-yl)methyl Esters as Highly Efficient, Ultrafast Phototriggers for Protons and their Application to Acidifying Membrane Surfaces

124. R. SCHMIDT
Chem. Phys., 304, 315-316 (2004)
Comment on "Analysis of mixed solvent effects on the properties of singlet oxygen (1Dg)" [Chem. Phys. 300 (2004) 33-39]

123. H. J. KUHN, S. E. BRASLAVSKY und R. SCHMIDT
Pure and Appl. Chem., 76, 2105-2146 (2004)
Chemical Actinometry 

122. R. SCHMIDT
J. Phys. Chem. A, 108, 5509-5513 (2004)
The Deactivation of O2(1Dg) Singlet Oxygen by Carotenoids: Internal Conversion of Excited Encounter Complexes

121. J.-M. AUBRY, C. PIERLOT, J. RIGAUDY und R. SCHMIDT
Acc. Chem. Res., 36, 668-675 (2003)
Reversible Binding of Oxygen to Aromatic Compounds

120. C. SCHWEITZER und R. SCHMIDT
Chem. Rev., 103, 1685-1757 (2003)
Physical Mechanisms of Generation and Deactivation of Singlet Oxygen

119. C. SCHWEITZER, Z. MEHRDAD, A. NOLL, E.-W. GRABNER und R. SCHMIDT
J. Phys. Chem. A, 107, 2192-2198 (2003)
The Mechanism of Photosensitized Generation of Singlet Oxygen During Oxygen Quenching of Triplet States  and the General Dependence of the Rate Constants and Efficiencies of O2(1Sg+), O2(1Dg) and O2(3Sg-)  Formation on Sensitizer Triplet State Energy and Oxidation Potential

118. Z. MEHRDAD, A. NOLL, E.-W. GRABNER und R. SCHMIDT
Photochem. Photobiol. Sci., 1, 263-269 (2002).

Sensitization of singlet oxygen via encounter complexes and via exciplexes of pp* triplet excited sensitizers and oxygen

117. T. ECKARDT, V. HAGEN, B. SCHADE, R. SCHMIDT, C. SCHWEITZER und J. BENDIG
J. Org. Chem., 67, 703 - 710 (2002).
Deactivation Behavior and Excited-State Properties of (Coumarin-4-yl)methyl Derivatives. 2. Photocleavage of Selected (Coumarin-4-yl)methyl-caged Adenosine 3',5' - Cyclic Monophosphates with Fluorescence Enhancement

116. Z. MEHRDAD, C. SCHWEITZER und R. SCHMIDT
J. Phys. Chem. A, 106, 228 - 235 (2002).
Formation of O2(1 sigma g+), O2(1 delta g) and O2(3 sigma g-) During Oxygen Quenching of np* Triplet
Phenyl Ketones: The Role of Charge Transfer and Sensitizer-Oxygen Complex Structure

115. C. SCHWEITZER, Z. MEHRDAD, A. NOLL, E.-W. GRABNER und R. SCHMIDT
Helv. Chim. Acta, 84, 2493 - 2507 (2001).
Oxygen Quenching of np* Triplet Phenyl Ketones: Local Excitation and Local Deactivation

114. R. SCHMIDT und F. SHAFII
J. Phys. Chem. A, 105, 8871 - 8877 (2001).
The Influence of Charge Transfer Interactions on the Sensitization of Singlet Oxygen: Formation of O2(1 sigma g+), O2(1 delta g)
and O2(3 sigma g-) During Oxygen Quenching of Triplet Excited Biphenyl Derivatives

113. C SCHWEITZER, Z. MEHRDAD, F. SHAFII und R. SCHMIDT
Phys. Chem. Chem Phys., 3, 3095 - 3101 (2001).
Charge Transfer Induced Quenching of Triplet Sensitizers by Ground State Oxygen and Charge Transfer Induced Quenching
of Singlet Oxygen by Ground State Sensitizers: A Common Deactivation Channel

112. C. SCHWEITZER, Z. MEHRDAD, F. SHAFII und R. SCHMIDT
J. Phys. Chem. A, 105, 5309 - 5316 (2001).
Common Marcus Type Dependence of the Charge Transfer Induced Processes in the Sensitization and Quenching of Singlet Oxygen by Naphthalene Derivatives

111. R. SCHMIDT, F. SHAFII, C. SCHWEITZER, A. A. ABDEL-SHAFI und F. WILKINSON
J. Phys. Chem. A, 105, 1811 - 1817 (2001).
Charge Transfer and Non-Charge Transfer Processes Competing in the Sensitization of Singlet Oxygen: Formation of O2(1 sigma g+), O2(1 delta g) and O2(3 sigma g-) during Oxygen Quenching of Triplet Excited Naphthalene Derivatives

110. F. SHAFII und R. SCHMIDT
J. Phys. Chem. A, 105, 1805 - 1811 (2001).
Determination of Rate Constants of Formation of O2(1 sigma g+), O2(1 delta g) and O2(3 sigma g-) in the Quenching of Triplet States
by O2 for Compounds with Incomplete Intersystem Crossing

109. R. SCHMIDT und C. TANIELIAN
J. Phys. Chem. A, 104, 3177 - 3180 (2000).
Time-Resolved Determination of the Quantum Yield of Singlet Oxygen Formation  by Tetraphenylporphine under Conditions of Very Strong Quenching

108. R. HERBRICH und R. SCHMIDT 
J. Photochem. Photobiol. A: Chem., 133, 149 - 158 (2000). 
Investigation of the pyrene NN'-diethylaniline exciplex by photoacoustic calorimetry and fluorescence spectroscopy 

107. R. SCHMIDT, H. JOCKEL, H.-G. SCHMALZ und H. JOPE 
J. Chem. Soc., Perkin Trans. 2, 69 - 76 (2000).
Kinetic investigation of the reduction of pinacolone by borane catalyzed by oxaza-borolidines in THF. 
Hydride shift as rate determining step 

106. H.-D. BRAUER und R. SCHMIDT 
J. Phys. Chem. A, 104, 164 - 165 (2000). 
Comment on "New Assignment of the Electronically Excited States of Anthracene-9,10-endoperoxide 
and Its Derivatives: A Critical Experimental and Theoretical Study" 

105. B. SCHADE, V. HAGEN, R. SCHMIDT, R. HERBRICH, E. KRAUSE, T. ECKARDT, J. BENDIG 
J. Org. Chem. 64, 9109 - 9117 (1999). 
Deactivation Behavior and Excited-State Properties of (Coumarin-4-yl)methyl Derivatives. 1. Photocleavage of (7-Methoxycoumarin-4-yl)methyl-Caged Acids with Fluorescence Enhancement 

104. C. ECKHARDT, H. JOCKEL und R. SCHMIDT 
J. Chem. Soc., Perkin Trans. 2, 2155 - 2162 (1999). 
Kinetics of the Reduction of Pinacolone by Borane-Dimethylsulfide and Catecholborane in THF 

103. M. HILD und R. SCHMIDT 
J. Phys. Chem. A, 103, 6091 - 6096 (1999) 
The Mechanism of the Collision-Induced Enhancement of the a1(Delta)g ->  X3(Sigma)g- and 
b1(Sigma)g+ -> a1(Delta)g Radiative Transitions of O2 

102. R. SCHMIDT, F. SHAFII und M. HILD 
J. Phys. Chem. A, 103, 2599 - 2605 (1999) 
The Mechanism of the Solvent Perturbation of the a1(Delta)g -> X3(Sigma)g- Radiative Transition of O2 

101. R. SCHMIDT 
J. Phys. Chem. A, 102, 9082 - 9086 (1998) 
Interpretation of Reaction and Activation Volumes in Solution 

100. R. SCHMIDT und M. BODESHEIM 
J. Phys. Chem. A, 102, 4769 - 4774 (1998) 
Radiationless Deactivation of the Second Excited Singlet State (Sigma) of O2 in Solution 

99. R. SCHMIDT, H. JOCKEL, H.-G. SCHMALZ und H. JOPE 
J. Chem. Soc., Perkin Trans. 2, 2725 - 2731 (1997) 
Kinetics of the Borane Reduction of Pinacolone in THF Catalyzed by Two Different Oxazaboroles 

98. H. JOCKEL und R. SCHMIDT 
J. Chem. Soc., Perkin Trans. 2, 2719 - 2723 (1997) 
Kinetics of the Direct Borane Reduction of Pinacolone in THF 

97. M. BODESHEIM und R. SCHMIDT 
J. Phys. Chem. A, 101, 5672 - 5677 (1997) 
Chemical Reactivity of Sigma Singlet Oxygen 

96. R. SCHMIDT und M. SCHÜTZ 
J. Photochem. Photobiol. A: Chem., 103, 39 - 44 (1997) 
Methodical Studies on the Time Resolution of Photoacoustic Calorimetry 

95. R. SCHMIDT und M. SCHÜTZ 
Chem. Phys. Lett., 263, 795 - 802 (1996) 
Determination of Reaction Volumes and Reaction Enthalpies by Photoacoustic Calorimetry 

94. R. SCHMIDT 
J. Phys. Chem., 100, 8049 - 8052 (1996) 
Solvent Shift of the a(Delta) -> X(Sigma) Phosphorescence of O2 

93. M. SCHÜTZ und R. SCHMIDT 
J. Phys. Chem., 100, 2012 - 2018 (1996) 
The Deactivation of 9,9´ Bianthryl in Solution Studied by Photoacoustic Calorimetry and Fluorescence 

92. R. SCHMIDT und M. BODESHEIM 
J. Phys. Chem., 99, 15919 - 15924 (1995) 
Collision Induced Radiative Transitions b(Sigma) -> a(Delta), b(Sigma) -> X(Sigma) and a(Delta) -> X(Sigma) of O2 

91. R. DUNSBACH und R. SCHMIDT 
J. Photochem. Photobiol. A: Chem., 85, 275 - 279 (1995) 
Deactivation of Excited Xanthene Dye Dimers 

90. M. BODESHEIM, M. SCHÜTZ und R. SCHMIDT 
Chemical Physics Letters, 221, 7 - 14 (1994) 
Triplet State Energy Dependence of the Competitive Formation of Singlet O2 (Sigma), Singlet O2 (Delta) and Triplet O2 (Sigma) in Sensitization of O2 by Triplet States 

89. R. DUNSBACH und R. SCHMIDT 
J. Photochem. Photobiol. A: Chem., 83, 7 - 13 (1994) 
Photophysical Properties of Some Polycyclic Conjugated Hydrocarbons Containing Five Membered Rings 

88. K. SCHAFFNER, R. SCHMIDT und H.-D. BRAUER 
Mol. Cryst. Liq. Cryst., 246, 119 - 126 (1994) 
Photochromism Based on the Reversible Reaction of Singlet Oxygen with Aromatic Compounds 

87. R. SCHMIDT 
J. Photochem. Photobiol. A: Chem., 80, 1 - 5 (1994) 
Comparative Analysis of the Collisional Deactivation of Singlet Oxygen (Delta), Singlet Oxygen (Sigma), Singlet SO (Sigma), Singlet SeO (Sigma), and Singlet NF (Sigma) by Small
Polyatomic Molecules 

86. R. SCHMIDT, C. TANIELIAN, R. DUNSBACH und C. WOLFF 
J. Photochem. Photobiol. A: Chem., 79, 11 - 17 (1994) 
Phenalenone, a Universal Reference Compound for the Determination of Quantum Yields of Singlet Oxygen (Delta) Sensitization 

85. R. SCHMIDT und M. BODESHEIM 
J. Phys. Chem., 98, 2874 - 2876 (1994) 
Time Resolved Measurement of Singlet Oxygen (Sigma) in Solution. Phosphorescence from an Upper Excited State. 

84. R. SCHMIDT und M. BODESHEIM 
Chem. Phys. Lett., 213, 111 - 116 (1993) 
Efficiencies of Singlet Oxygen (Sigma) and Singlet Oxygen (Delta) Formation in the Primary Steps of Triplet State Photosensitization in Solution 

83. R. SCHMIDT 
J. Phys. Chem., 97, 3658 - 3661 (1993) 
Collisional Deactivation of Singlet NF (Sigma) by Small Polyatomic Molecules 

82. U. KATSCHER, R. SCHMIDT und H.-D. BRAUER 
Chem. Phys. Lett., 205, 75 - 79 (1993) 
Triplet-Sensitized Cycloreversion of Endoperoxides of Aromatic Compounds. An Adiabatic Reaction Route 

81. J. BENDIG, R. SCHMIDT und H.-D. BRAUER 
Chem. Phys. Lett., 202, 535 - 541 (1993) 
Sensitization of Singlet Oxygen (Delta) by N-Methylacridone. Solvent and O2-Concentration Dependence and 16O/18O-Isotope Exchange Experiments 

80. R. SCHMIDT 
Ber. Bunsenges. Phys. Chem., 96, 794 - 799 (1992) 
Collisional Deactivation of Singlet Oxygen (Sigma) by Small Polyatomic Molecules 

79. R. SCHMIDT und E. AFSHARI 
Ber. Bunsenges. Phys. Chem., 96, 788 - 794 (1992) 
Collisional Deactivation of Singlet Oxygen (Delta) by Solvent Molecules. Comparative Experiments with 16O2 and 18O2 

78. R. DUNSBACH, H.-D. BRAUER, R. SCHMIDT, J. WANG und A. GOSSAUER
J. Photochem. Photobiol. A: Chem., 67, 227 - 235 (1992) 
Photophysical Properties and Photooxygenation of 2-(4-Ethoxycarbonylphenyl)-1,8-dihydropyrrolo[3',2':3,4]cycopenta[1,2-b]pyridine (EPCP) 

77. E. AFSHARI, H.-D. BRAUER, R. SCHMIDT, M. LACHGAR und R. RIGAUDY 
J. Photochem. Photobiol. A: Chem., 63, 319 - 325 (1992) 
Wavelength Dependent Photocycloreversion of the Endoperoxides of 1,2,3,4-Tetramethylanthracene and 1,2,3,4-Tetramethyl-9,10-diphenylanthracene 

76. G. SCHERMANN, R. SCHMIDT, A. VÖLCKER, H.-D. BRAUER, A. MEIER und F. P. MONTFORTS 
J. Photochem. Photobiol. B.: Biology, 11, 285 - 294 (1991) 
Potential Photosensitizers for Photodynamic Therapy - III. Photophysical Properties of a Lipophilic Chlorin and its Zn-and Sn-Chelates 

75. E. AFSHARI und R. SCHMIDT 
Chem. Phys. Lett., 184, 128 - 132 (1991) 
Isotope Dependent Quenching of Singlet Molecular Oxygen (Delta) by Ground State Oxygen in Several Perhalogenated Solvents 

74. R. SCHMIDT, K. SEIKEL und H.-D. BRAUER 
Ber. Bunsenges. Phys. Chem., 94, 1100 - 1105 (1990) 
Pressure Effect on the Radiationless Deactivation of Singlet Oxygen in Solution 

73. H. J. ADICK, R. SCHMIDT und H.-D. BRAUER 
J. Photochem. Photobiol. A: Chemistry, 54, 27 - 30 (1990) 
Chemical Actinometry Between 670 and 795 nm 

72. N. P. ERNSTING, R. SCHMIDT und H.-D. BRAUER 
J. Phys. Chem., 94, 5252 - 5255 (1990) 
Sub-Picosecond Transient Absorption Studies of the Photocycloreversion of an Aromatic Endoperoxide 

71. R. SCHMIDT und E. AFSHARI 
J. Phys. Chem., 94, 4377 - 4378 (1990) 
Effect of Solvent on the Phosphorescence Rate Constant of Singlet Molecular Oxygen (Delta) 

70. G. SCHERMANN, R. SCHMIDT, A. VÖLCKER, H.-D. BRAUER, H. MERTES und B. FRANCK 
Photochem. Photobiol., 52, 741 - 744 (1990) 
Potential Photosensitizers for Photodynamic Therapy - II. Photophysical Properties of Isohematoporphyrin-diglucoside, [26] Porphyrine and [34] Porphyrine 

69. G. SCHERMANN, A. VÖLCKER, K. SEIKEL, R. SCHMIDT, H.-D. BRAUER und F. P. MONTFORTS 
Photochem. Photobiol., 51, 45 -51 (1990) 
Potential Photosensitizers for Photodynamic Tumor Therapy - I. Photophysical Properties of Two Chlorin Derivatives 

68. K. JESSE, R. MARKERT, F. J. COMES, R. SCHMIDT und H.-D. BRAUER 
Chem. Phys. Lett., 166, 95 -100 (1990) 
Picosecond Photochemistry: The Mechanism of Photocycloreversion of Aromatic Endoperoxides 

67. H.-D. BRAUER und R. SCHMIDT 
in "Photochromic Materials and Systems", Editoren H. Dürr und H. Bouas-Laurent, Elsevier, Amsterdam, 1990, S. 631 - 651 
Photochromism Based on the Reversible 4 + 2 Cycloaddition Reaction of Singlet Oxygen (Delta) with Aromatic Compounds 

66. U. KATSCHER, R. SCHMIDT und H.-D. BRAUER 
Chem. Phys. Lett., 161, 439 - 443 (1989) 
Triplet-Sensitized Cycloreversion of the Endoperoxides of Dimethylhomöocoerdianthrone and Heterocoerdianthrone 

65. H. J. ADICK, R. SCHMIDT und H.-D. BRAUER 
J. Photochem. Photobiol., A: Chem., 49, 311 - 316 (1989) 
A Chemical Actinometer for the Wavelength Range 610 - 670 nm 

64. U. OPRIEL, K. SEIKEL, R. SCHMIDT und H.-D. BRAUER 
J. Photochem. Photobiol., A: Chem., 49, 299 - 309 (1989) 
Determination of Rate Constants of Singlet Oxygen Consumption by Singlet Oxygen-Acceptors in Weakly Deactivating Solvents 

63. K. JESSE, F. J. COMES, R. SCHMIDT und H.-D. BRAUER- 
Chem. Phys. Lett., 160, 8 - 12 (1989) 
Activation Parameters for the Photocycloreversion of Heterocoerdianthrone Endoperoxide in the Condensed Phase 

62. A. VÖLCKER, H. J. ADICK, R. SCHMIDT und H.-D. BRAUER 
Chem. Phys. Lett., 159, 103 - 108 (1989) 
Near Infrared Phosphorescence Emission of Compounds with Low-Lying Triplet States

61. Th. BLUMENSTOCK, K. JESSE, F. J. COMES, R. SCHMIDT und H.-D. BRAUER 
Chem. Phys., 130, 289 - 298 (1989) 
Picosecond Studies on the Photodissociation Dynamics of Aromatic Endoperoxides 

60. R. SCHMIDT 
J. Am. Chem. Soc., 111, 6983 - 6987 (1989) 
The Influence of Heavy Atoms on the Deactivation of Singlet Oxygen (Delta) in Solution 

59. R. SCHMIDT, K. SEIKEL und H.-D. BRAUER 
J. Phys. Chem., 93, 4507 - 4511 (1989) 
Determination of the Phosphorescence Quantum Yield of Singlet Molecular Oxygen (Delta) in Five Different Solvents 

58. H. J. KUHN, S. E. BRASLAVSKY und R. SCHMIDT 
Pure and Appl. Chem., 61, 187 - 210 (1989) 
"Chemical Actinometry", Publication of the IUPAC Comission on Photochemistry 

57. R. SCHMIDT, W. JANSSEN und H.-D. BRAUER 
J. Phys. Chem., 93, 466 - 468 (1989) 
Pressure Effect on Quenching of Perylene Fluorescence by Halogene-Naphthalenes 

56. R. SCHMIDT 
Chem. Phys. Lett., 151, 369 - 374 (1988) 
Determination of the Phosphorescence Quantum Yield of Singlet Molecular Oxygen (Delta) by Means of a Radiometer and an Infrared Luminescence Spectrometer 

55. H. J. ADICK, R. SCHMIDT und H.-D. BRAUER 
J. Photochem. Photobiol, A: Chemistry, 45, 89 - 96 (1988) 
Two Wavelength-Independent Chemical Actinometers which TogetherCover the Range 334 - 500 nm 

54. R. SCHMIDT und H.-D. BRAUER 
in "Organic High Pressure Chemistry", Editor W. J. LeNoble, Elsevier, Amsterdam, 1988, S. 357 - 377. 
The Application of High Pressure in Photophysics and Photochemistry. Selected Systems in the Liquid Phase 

53. H.-D. BRAUER, A. ACS und R. SCHMIDT 
Ber. Bunsenges. Phys. Chem., 91, 1337 - 1346 (1987) 
The Role of Geminate Reaction in the Self-Sensitized Photooxygenation of Helianthrene and Helianthrene-Derivatives 

52. A. ACS, R. SCHMIDT und H.-D. BRAUER 
Ber. Bunsenges. Phys. Chem., 91, 1331 - 1337 (1987) 
Generation and Deactivation of Singlet Oxygen (Delta) by Helianthrene and Helianthrene-Derivatives 

51. R. SCHMIDT und H.-D. BRAUER 
J. Am. Chem. Soc., 109, 6976 - 6981 (1987) 
Radiationless Deactivation of Singlet Oxygen (Delta) by Solvent Molecules 

50. R. SCHMIDT, H.-D. BRAUER und K. H. DREXHAGE 
Chem Phys. Lett., 138, 18 - 21 (1987) 
Determination of the Phosphorescence Quantum Yield of Singlet Molecular Oxygen (Delta) in Benzene 

49. R. SCHMIDT 
Ber. Bunsenges. Phys. Chem., 90, 813 - 815 (1986) 
The Endoperoxide of Mesodiphenylhelianthrene. Four Reaction Channels Leading from Different Upper Excited Electronic States to Cycloreversion 

48. R. SCHMIDT, J. RIGAUDY und H.-D. BRAUER 
J. Photochem., 34, 197 - 208 (1986) 
Reactions Originating from Different Upper Excited Singlet States. The Photocycloreversion of the Endoperoxides of 1.4-Dimethyl-9,10-diphenylanthracene 

47. R. SCHMIDT und H.-D. BRAUER 
J. Photochem., 34, 1 - 12 (1986) 
Comparison of the Photochemical and Thermal Rearrangement Reaction of Endoperoxides 

46. Th. BLUMENSTOCK, F. J. COMES, R. SCHMIDT und H.-D. BRAUER 
Chem. Phys. Lett., 127, 452 - 455 (1986) 
Picosecond Laser Photolysis Study of the Photocycloreversion of Heterocoerdianthrone Endoperoxide 

45. H.-D. BRAUER und R. SCHMIDT 
Photochem. Photobiol., 41, 119 - 122 (1985) 
Wavelength Effects on the Photocycloreversion Quantum Yield of Some Photochromic Endoperoxides 

44. R. GABRIEL, R. SCHMIDT und H.-D. BRAUER 
Z. Phys. Chem. N.F., 141, 41 - 52 (1985) 
Wellenlängenabhängige und adiabatische Photochemie des 1,4-verbrückten Endoperoxids von 1,4-Dimethoxy-9,10-diphenylanthrazen 

43. R. SCHMIDT 
Z. f. Naturforsch., 39a, 998 - 1002 (1984) 
The Endoperoxide of Tetrabenzopentacen. A new Photochromic Endoperoxide 

42. R. SCHMIDT und H.-D. BRAUER 
J. Photochem., 25, 489 - 499 (1984) 
Self-Sensitized Photooxidation of Aromatic Compounds and Photocycloreversion of Endoperoxides: Applications in Chemical Actinometry 

41. H.-D. BRAUER, A. ACS, W. DREWS, R. GABRIEL, S. GHAENI und R. SCHMIDT 
J. Photochem., 25, 475 - 488 (1984) 
Generation of Singlet Oxygen from O2-Quenching of the Lowest Excited Singlet and Triplet States of Some Aromatic Compounds 

40. B. HAMMERICH, R. SCHMIDT und H.-D. BRAUER 
Materials Research Society Symposia Proceedings, Vol. 22, High Pressure in Science and Technology, Part III, p. 323 - 326, North-Holland, New York 1984 
Volumes of Activation for the S1 ® T2 Intersystem Crossing in N-Methylacridone in Several Solvents 

39. H.-D. BRAUER und R. SCHMIDT 
J. Photochem., 27, 17 - 27 (1984) 
Reactions Originating from Upper Excited Singlet States Sn (n ³ 3). The Photochemical Cycloreversion of Several Endoperoxides of the Tetracene Series 

38. R. SCHMIDT, K. SCHAFFNER, W. TROST und H.-D. BRAUER 
J. Phys. Chem., 88, 956 - 958 (1984) 
Wavelength Dependent and Dual Photochemistry of the Endoperoxides of Anthracene and 9,10-Dimethylanthracene 

37. R. SCHMIDT 
J. Photochem., 23, 379 - 386 (1983) 
The Wavelength Dependent Photochemistry of the Endoperoxide of 1,4,9,10-Tetraphenylanthracene: Indirect Evidence for the Existence of Several Reaction Channels Leading to
Cycloreversion 

36. H.-D. BRAUER und R. SCHMIDT 
Chem. Phys. Lett., 100, 470 - 471 (1983) 
Comments on "Generation of Singlet Oxygen and the Mechanism of Internal Conversion in 9,10-Diphenylanthracene" 

35. W. DREWS, R. SCHMIDT und H.-D. BRAUER 
Chem. Phys. Lett., 100, 466 - 469 (1983) 
Generation of 1O2 from O2-Quenching of the Lowest Excited Singlet and Triplet States of 9,10-Diphenylanthracene 

34. A. ACS, R. SCHMIDT und H.-D. BRAUER 
Photochem. Photobiol., 38, 527 - 531 (1983) 
Mesodiphenylhelianthrene - The Most Reactive Singlet Oxygen Acceptor 

33. H.-D. BRAUER, R. SCHMIDT, G. GAUGLITZ und S. HUBIG 
Photochem. Photobiol., 37, 595 - 598 (1983) 
Chemical Actinometry in the Visible (475 - 610 nm) by Mesodiphenylhelianthrene 

32. H.-D. BRAUER und R. SCHMIDT 
Photochem. Photobiol., 37, 587 - 591 (1983) 
A New Reusable Chemical Actinometer for UV-Irradiation in the (248 - 334 nm) Range

31. H.-D. BRAUER, W. DREWS, R. SCHMIDT, G. GAUGLITZ und S. HUBIG 
J. Photochem., 20, 335 - 340 (1982) 
Heterocoerdianthrone: A New Actinometer for the Visible (400 - 580 nm) Range 

30. R. SCHMIDT, W. DREWS und H.-D. BRAUER 
J. Phys. Chem., 86, 4909 - 4913 (1982) 
Wavelength-Dependent Photostable or Photoreversible Photochromic System 

29. R. SCHMIDT, H.-D. BRAUER, W. ADAM und K. ZINNER 
Z. Phys. Chem. N.F., 131, 129 - 138 (1982) 
Mediumabhängige Energiewanderung bei der Energietransfer-Chemilumineszenz des Systems Tetramethyl-1,2-dioxetan - 9,10-Dibromanthrazen in polymeren Matrizen 

28. R. SCHMIDT, W. DREWS und H.-D. BRAUER 
Z. f. Naturforsch., 37a, 55 - 57 (1982) 
Wavelength Dependent and Adiabatic Photochemistry of Endoperoxides of Aromatic Hydrocarbons 

27. R. SCHMIDT, W. DREWS und H.-D. BRAUER 
J. Photochem., 18, 365 - 378 (1982) 
Die Entwicklung eines neuen photochromen Strukturprinzips basierend auf der reversiblen Photooxidation 

26. K. ANGERMANN, R. SCHMIDT, R. van ELDIK, H. KELM und F. WASGESTIAN 
Inorg. Chem., 21, 1175 - 1179 (1982) 
High-Pressure Mechanistic Studies of the Photochemical Reactionsof Transition Metal Complexes. 3. Medium Effects on the Photoaquation of Some Co(III) and Cr(III) Complexes in
Solution 

25. R. van ELDIK, R. SCHMIDT, B. HAMMERICH, H.-D. BRAUER und H. KELM 
High Pressure Science & Technology, Proceedings of the VIIIth International AIRAPT Conference, Uppsala 1981, p. 651 - 654 
The Interpretation of Volumes of Activation of Photochemical Reactions in Solution 

24. H.-D. BRAUER, R. SCHMIDT und B. HAMMERICH 
Z. f. Naturforsch., 36a, 489 - 493 (1981) 
Effects of Pressure and Temperature on the Fluorescence Quantum Yield of N-Methylacridone in Solution Interpreted in Terms of the Eyring Transition-State Theory 

23. R. SCHMIDT und H.-D. BRAUER 
J. Photochem., 15, 85 - 88 (1981) 
Wellenlängenabhängige Photochemie von Endoperoxiden. Die Photolyse des Endoperoxids von Rubren 

22. R. van ELDIK, D. A. PALMER, R. SCHMIDT und H. KELM 
Inorg. Chim. Acta, 50, 131 - 135 (1981) 
Volumes of Activation for the Anation of Pd(II)Substituted Dien Complexes by Chloride Ion in Aqueous Solution. A High Pressure Stopped-Flow Instrument for Studying the Kinetics of Fast Reactions under Pressure 

21. R. SCHMIDT, H. KELM und H.-D. BRAUER 
J. Photochem., 14, 261 - 263 (1980) 
Reply to Comments of "The Energy Transfer from Triplet State Acetone to 9-Bromo- anthracene and 9,10-Dichloroanthracene: an Investigation under High Pressure" 

20. H.-D. BRAUER, R. SCHMIDT und W. DREWS 
Patentschrift: Photochrome Aufzeichnungsmaterialien und Verbindungen 
Patentanmeldung 1979: Patent Nr. 29 10 688.1 

19. W. DREWS, R. SCHMIDT und H.-D. BRAUER 
Chem. Phys. Lett., 70, 84 - 88 (1980) 
The Photolysis of the Endoperoxide of 9,10-Diphenylanthracene 

18. D. A. PALMER, R. SCHMIDT, H.-D. BRAUER und H. KELM 
High Pressure Science & Technology, Proceedings of the VIIth International AIRAPT Conference, Le Creusot 1979, edited by B. VODAR and Ph. MARTEAU, Pergamon Press
1980, Vol. 2, page 830 - 832 
The Interpretation of Volumes of Activation of Chemical Reactionsin Solution 

17. R. SCHMIDT, W. DREWS und H.-D. BRAUER 
J. Am. Chem. Soc., 102, 2791 - 2797 (1980) 
Photolysis of the Endoperoxide of Heterocoerdianthrone. A Concerted, Adiabatic Cycloreversion Originating from an Upper Excited Singlet State 

16. H.-D. BRAUER, W. DREWS und R. SCHMIDT 
J. Photochem., 12, 293 - 304 (1980) 
Ein neues photochromes System von ungewöhnlich hoher thermischer Stabilität 

15. R. SCHMIDT, H. KELM und H.-D. BRAUER 
J.Photochem., 11, 145 - 164 (1979) 
Die Löschung der indirekten Chemilumineszenz von verschiedenen Tetramethyl-1,2-dioxetan-Akzeptor-Paaren durch 2,4-Hexadien 

14. B. HAMMERICH, R. SCHMIDT und H.-D. BRAUER 
Ber. Bunsenges. Phys. Chem., 83, 198 - 208 (1979) 
Effects of Pressure and Temperature on the Fluorescence of 9-Methylanthracene and 9,10-Dibromoanthracene in Solution 

13. R. SCHMIDT, H. KELM und H.-D. BRAUER 
Z. Phys. Chem. N.F., 113, 37 - 55 (1978) 
Der Einfluß von Triplettlöschern auf die indirekte Chemilumineszenz von verschiedenen Tetramethyl-1,2-dioxetan-Akzeptor-Systemen 

12. D. A. PALMER, R. SCHMIDT, R. van ELDIK und H. KELM
Inorg. Chim. Acta, 29, 261 - 265 (1978) 
Temperature and Pressure Dependencies of the Anation of Pd(MeEt4dien)(HO)22+ by Chloride in Acidic Aqueous Solution. A Mixing System for Studying the Kinetics of Moderately
Fast Reactions under Pressure 

11. H.-D. BRAUER, R. SCHMIDT und H. KELM 
in "High Pressure Chemistry", Editor H. KELM, D. Reidel Publishing Company, Dordrecht Holland, NATO Advanced Study Institute Series C - Mathematical and Physical Sciences,
Vol. 41, 521 - 567 (1978) 
High Pressure Effects on Photophysical and Photochemical Primary Processes 

10. R. SCHMIDT, H.-D. BRAUER und H. KELM 
J. Photochem., 8, 217 - 231 (1978) 
The Energy Transfer from Triplet State Acetone to 9-Bromoanthracene and 9,10-Dichloroanthracene. An Investigation under High Pressure 

9. R. SCHMIDT, H. KELM und H.-D. BRAUER 
Ber. Bunsenges. Phys. Chem., 81, 402 - 408 (1977) 
Die Energieübertragung von Aceton im Triplettzustand auf 9,10-Dibromanthrazen. Eine Untersuchung unter hohem Druck 

8. W. DREWS, R. SCHMIDT und H.-D. BRAUER 
J. Photochem., 6, 391 - 403 (1976/77) 
Die Kinetik der selbstsensibilisierten Photooxidation des Heterocoerdianthrons im Bereich niedriger Konzentrationen 

7. R. SCHMIDT, H.-Ch. STEINMETZER, H.-D. BRAUER und H. KELM 
J. Am. Chem. Soc., 98, 8181 - 8185 (1976) 
Pressure Dependence of the Thermolysis of Tetramethyl-1,2-dioxetane: The Volume of Activation and its Mechanistic Implications 

6. R. SARTORIUS, R. SCHMIDT, H. KELM und H.-D. BRAUER 
Z. f. Naturforsch., 31b, 810 - 815 (1976) 
Untersuchung der cis-trans-Isomerie des WITTIGschen Kohlenwasserstoffs 

5. R. SCHMIDT, M. GEIS und H. KELM 
Z. Phys. Chem. N.F., 92, 223 - 234 (1974) 
Lösungsmittel- und Druckabhängigkeit der oxidativen Additionsreaktion zwischen molekularem Wasserstoff und Chloro(carbonylo)-bis(triarylphosphino)iridium(I) Verbindungen 

4. H.-D. BRAUER, R. SCHMIDT und R. SARTORIUS 
Z. Phys. Chem. N.F., 89, 225 - 229 (1974) 
Zur Parawasserstoffumwandlung durch organische Radikale 

3. R. SCHMIDT und H.-D. BRAUER 
Z. f. Naturforsch., 28b, 554 - 556 (1973) 
Über die magnetischen Eigenschaften der MÜLLERschen Kohlenwasserstoffe 

2. R. SCHMIDT und H.-D. BRAUER 
Z. f. Naturforsch., 27b, 1363 - 1370 (1972) 
Über das Assoziationsverhalten des SCHLENKschen Kohlenwasserstoffs 

1. R. SCHMIDT und H.-D. BRAUER 
Angew. Chem., 83, 498 - 499 (1971) 
Über die energetische Lage des niedrigsten Singulett- und Triplettzustandes beim SCHLENKschen und beim MÜLLERschen Kohlenwasserstoff