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H. E. A. Kramer · SciRah

Researcher profile · Semantic Scholar

H. E. A. Kramer

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H. E. A. Kramer — researcher profile on SciRah

h-index: 27
Works: 62
Citations: 1,604

Most-cited papers

Investigations on Polymeric and Monomeric Intramolecularly Hydrogen-Bridged UV Absorbers of the Benzotriazole and Triazine Class
J. Keck, H. E. A. Kramer, H. Port, T. Hirsch +2 more
1996135 citations
Semantic Scholar
Photophysical and photochemical deactivation processes of ultraviolet stabilizers of the (2-hydroxyphenyl)benzotriazole class
G. Woessner, G. Goeller, P. Kollat, J. Stezowski +3 more
198471 citations
Semantic Scholar
Photochemical cis/trans isomerization of a stilbazolium betaine. A protolytic/photochemical reaction cycle
U. Steiner, M. Abdel-kader, P. Fischer, H. E. A. Kramer
197870 citations Open access
Semantic Scholar
Ultraviolet Stabilizers of the 2-(2'-Hydroxyphenyl)-1,3,5-triazine Class: Structural and Spectroscopic Characterization
G. J. Stueber, M. Kieninger, H. Schettler, W. Busch +5 more
199567 citations
Semantic Scholar
DETERMINATION OF THE pk VALUES OF THE LUMIFLAVIN TRIPLET STATE BY FLASH PHOTOLYSIS
S. Schreiner, U. Steiner, H. E. A. Kramer
1975Photochemistry and Photobiology66 citations Open access
Semantic Scholar
Reactivity of Organic Dye Triplet States in Electron Transfer Processes
Ekehardt Vogelmann, S. Schreiner, W. Rauscher, H. E. A. Kramer
197655 citations
Semantic Scholar
Ultraviolet stabilizers of the 2-hydroxyphenylbenzotriazole class - influence of the solvent on the absorption spectra and photochemical deactivation mechanism
G. Woessner, G. Goeller, Jochen Rieker, H. Hoier +4 more
198554 citations
Semantic Scholar
Mechanism of light-induced reduction of biological redox centers by amino acids. A flash photolysis study of flavin photoreduction by ethylenediaminetetraacetate and nitrilotriacetate.
Rainer Traber, H. E. A. Kramer, Peter Hemmerich
1982Biochemistry52 citations
Semantic Scholar
Ultraviolet stabilizers of the 2-(hydroxyphenyl)benzotriazole class: influence of substituents on structure and spectra
Jochen Rieker, E. Lemmert-Schmitt, G. Goeller, M. Roessler +5 more
199248 citations
Semantic Scholar
Investigation of physical triplet quenching by electron donors
U. Steiner, G. Winter, H. E. A. Kramer
197748 citations Open access
Semantic Scholar
Copper(I)‐Assisted Formation of an “Organic” Sandwich Structure: Structural Prerequisites for Luminescence of the Dinuclear Complexes [(μ‐Bipyrimidine){Cu(PR3)2}2]X2
C. Vogler, H. Hausen, W. Kaim, S. Kohlmann +2 more
198943 citations
Semantic Scholar
SENSITIZED PHOTOOXYGENATION ACCORDING TO TYPE I MECHANISM (RADICAL MECHANISM) ‐ PART I. FLASH PHOTOLYSIS EXPERIMENTS
H. E. A. Kramer, A. Maute
197243 citations
Semantic Scholar
Synthesis, electrochemistry and emission spectroscopy in fluid solution of four isomeric (α-diimine)Re(CO)3Hal complexes
W. Kaim, H. E. A. Kramer, C. Vogler, Jochen Rieker
198942 citations
Semantic Scholar
Role of charge transfer and spin-orbit coupling in fluorescence quenching. A case study with oxonine and substituted benzenes
R. E. Foell, H. E. A. Kramer, U. Steiner
199041 citations Open access
Semantic Scholar
Probing the intramolecular hydrogen bond of 2-(2-hydroxyphenyl)benzotriazoles in polar environment: a photophysical study of UV absorber efficiency.
Anja P. Fluegge, F. Waiblinger, M. Stein, Juergen Keck +6 more
2007Journal of Physical Chemistry A40 citations
Semantic Scholar
Substituent effects on triplet yields in aminoanthraquinones: radiationless deactivation via intermolecular and intramolecular hydrogen bonding
J. Ritter, Hans-Ulrich Borst, T. Lindner, M. Hauser +6 more
198840 citations Open access
Semantic Scholar
SENSITIZED PHOTOOXYGENATION: CHANGE FROM TYPE I (RADICAL) TO TYPE II (SINGLET OXYGEN) MECHANISM
H. E. A. Kramer, A. Maute
197339 citations
Semantic Scholar
Deactivation processes of ultraviolet stabilizers of the 2-(hydroxyphenyl)benzotriazole class with intramolecular hydrogen bonds
G. Goeller, Jochen Rieker, A. Maier, J. Stezowski +5 more
198838 citations
Semantic Scholar
Light-Induced Opening of the Intramolecular Hydrogen Bond of UV Absorbers of the 2-(2-Hydroxyphenyl)-1,3,5-triazine and the 2-(2-Hydroxyphenyl)benzotriazole Type
F. Waiblinger, Juergen Keck, M. Stein, Anja P. Fluegge +2 more
200037 citations
Semantic Scholar
Distinction of 2e- and 1e- reduction modes of the flavin chromophore as studied by flash photolysis.
P. Hemmerich, Wolfgang-R. Knappe, H. E. A. Kramer, Rainer Traber
1980European Journal of Biochemistry37 citations Open access
Semantic Scholar
Structure and properties of 5-deazaflavin radicals as compared to natural flavosemiquinones.
Michael Goldberg, I. Pecht, H. E. A. Kramer, Rainer Traber +1 more
1981Biochimica et Biophysica Acta36 citations
Semantic Scholar
Ultraviolet Absorbers of the 2-(2-Hydroxyaryl)-1,3,5-triazine Class and Their Methoxy Derivatives: Fluorescence Spectroscopy and X-ray Structure Analysis
Juergen Keck, M. Roessler, C. Schroeder, G. J. Stueber +11 more
199833 citations
Semantic Scholar
Linear free-enthalpy relation for radical yield in fluorescence quenching by electron transfer
P. Iwa, U. Steiner, Ekehardt Vogelmann, H. E. A. Kramer
198231 citations Open access
Semantic Scholar
REACTIVITY OF EXCITED STATES OF FLAVIN AND 5‐DEAZAFLAVIN IN ELECTRON TRANSFER REACTIONS
R. Traber, Ekehardt Vogelmann, S. Schreiner, T. Werner +1 more
198131 citations
Semantic Scholar
Arthur M. Adamson and Paul D. Fleischauer (Eds.): Concepts of Inorganic Photochemistry, Verlag John Wiley and Sons 1975, 438 Seiten, Preis: £ 13.30.
H. E. A. Kramer
197630 citations
Semantic Scholar
Singlet Oxygen as an Intermediate in the Catalytic Fading of Dye Mixtures
M. Rembold, H. E. A. Kramer
200827 citations
Semantic Scholar
PHOTOCHEMICAL INVESTIGATIONS OF OXAZINE, THIAZINE AND SELENAZINE DYES. THE REACTIVITY OF PROTOLYTIC TRIPLET FORMS IN ELECTRON TRANSFER REACTIONS
Ekehardt Vogelmann, H. E. A. Kramer
1976Photochemistry and Photobiology27 citations
Semantic Scholar
Photochemical and Photophysical Deactivation of 2,4,6-Triaryl-1,3,5-triazines
Frank Elbe, Juergen Keck, Anja P. Fluegge, H. E. A. Kramer +6 more
200026 citations
Semantic Scholar
One and two electron transfer pathways in the photoreduction of flavin
R. Traber, H. E. A. Kramer, P. Hemmerich
198225 citations Open access
Semantic Scholar
The Role of Anthraquinonoid Dyes in the Catalytic Fading'of Dye Mixtures– Substituent–dependent Triplet Yield of Diaminoanthraquinones
M. Rembold, H. E. A. Kramer
200823 citations
Semantic Scholar
The scientific work of Theodor Förster: a brief sketch of his life and personality.
H. E. A. Kramer, P. Fischer
2011ChemPhysChem20 citations
Semantic Scholar
Influence of Polymer Matrixes on the Photophysical Properties of UV Absorbers
M. Stein, Juergen Keck, F. Waiblinger, Anja P. Fluegge +5 more
200220 citations Open access
Semantic Scholar
A THEORETICAL TREATMENT OF THE ELECTRONIC STATES OF THIONINE AND RELATED MOLECULES
U. Sommer, H. E. A. Kramer
197118 citations
Semantic Scholar
INCREASED QUANTUM YIELD OF PHOTOREDUCTION OF DYES (A CATALYTIC EFFECT)
U. Steiner, M. Hafner, S. Schreiner, H. E. A. Kramer
197417 citations
Semantic Scholar
Experimental and theoretical aspects of the formation of radical cations from tripyrrolidinobenzenes and their follow-up reactions
F. Effenberger, W. Stohrer, K. Mack, F. Reisinger +4 more
199015 citations
Semantic Scholar
Photochemical Investigations and ESR Triplet Spectra of Oxazine, Thiazine and Seleneazine Dyes
Ekehardt Vogelmann, H. Schmidt, U. Steiner, H. E. A. Kramer
197514 citations Open access
Semantic Scholar
Ultraviolet absorbers and singlet oxygen
F. Waiblinger, Juergen Keck, Anja P. Fluegge, H. E. A. Kramer +2 more
199913 citations
Semantic Scholar
Aminobenzenes. 20. Experimental and theoretical aspects of the formation of radical cations from tripyrrolidinobenzenes and their follow-up reactions
F. Effenberger, W. Stohrer, K. Mack, F. Reisinger +4 more
199013 citations
Semantic Scholar
SENSITIZED PHOTOOXYGENATION ACCORDING TO TYPE I MECHANISM (RADICAL MECHANISM) — PART III. EXPERIMENTS WITH CONTINUOUS ILLUMINATION
M. Zügel, T. Förster, H. E. A. Kramer
197213 citations
Semantic Scholar
Deactivation processes of 2-hydroxyphenyl-1,3,5-triazines — polymeric and monomeric UV absorbers of the benzotriazole and triazine class
J. Keck, G. Stüber, H. E. A. Kramer
199712 citations
Semantic Scholar
Ultraviolet Stabilization of Polyamides: Photophysical Studies of Ultraviolet Stabilizers, Particularly in the 2-Hydroxyphenyl Benzotriazole Class
T. Werner, G. Woessner, H. E. A. Kramer
198112 citations
Semantic Scholar
ON THE REACTION OF SINGLET MOLECULAR OXYGEN WITH N‐ALLYLTHIOUREA IN AQUEOUS SOLUTION
I. Kraljić, H. E. A. Kramer
197812 citations
Semantic Scholar
Triplet formation in aminoanthraquinones and its importance for the catalytic fading of dye mixtures
Hans-Ulrich Borst, J. Kelemen, J. Fabian, M. Nepraš +1 more
199211 citations
Semantic Scholar
Singlet and Triplet Reactivity in Electron Transfer Reactions*
Ekehardt Vogelmann, W. Rauscher, R. Traber, H. E. A. Kramer
198111 citations
Semantic Scholar
FLAVIN‐PHOTOREDUCTION BY CYANIDE: NUCLEOPHILIC ADDITION IN THE EXCITED TRIPLET STATE
R. Traber, H. E. A. Kramer, Wolfgang R. Knappe, P. Hemmerich
198111 citations
Semantic Scholar
Ultraviolet Stabilizers of the 2-(Hydroxyphenyl)benzotriazole Class. Influence of Substituents on Structure and Spectra
Jochen Rieker, E. Lemmert-Schmitt, G. Goeller, M. Roessler +13 more
20107 citations
Semantic Scholar
INDICATION OF FAST TRIPLET FORMATION IN BIMOLECULAR QUENCHING OF EXCITED SINGLET STATES STUDIED BY CONVENTIONAL FLASH PHOTOLYSIS
Ekehardt Vogelmann, H. E. A. Kramer
1976Photochemistry and Photobiology6 citations
Semantic Scholar
Irradiation-dependent equilibrium between open and closed form of UV absorbers of the 2-(2-hydroxyphenyl)-1,3,5-triazine type
F. Waiblinger, Anja P. Fluegge, Juergen Keck, M. Stein +2 more
20015 citations
Semantic Scholar
Thionine triplet relaxation in pyridine: a completely time-resolved förster cycle
H. Eipper, M. Abdel-kader, H. E. A. Kramer, U. Steiner
19855 citations Open access
Semantic Scholar
Tautomerism by Hydrogen Transfer in Salicylates, Triazoles and Oxazoles
H. E. A. Kramer
20034 citations
Semantic Scholar

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U. Steiner×8
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Juergen Keck×7
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P. Fischer×6
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H. Port — researcher profile on SciRah

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G. Rytz — researcher profile on SciRah

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