Stephan Landgraf

Ao.Univ.-Prof. Dipl.-Chem. Dr.rer.nat.

19952017
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Research Output 1995 2017

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2017

A Binary Mixture of Ionic Liquids as a New Approach for an Experimental Diffusion Correction in the Study of Activated Processes

Landgraf, S., Bächle, J., Berghold, M. G. & Grampp, G., 2017, In : ChemPhysChem. 18, 10, p. 1288-1292

Research output: Contribution to journalArticleResearchpeer-review

2016

Single-molecule DNA hybridisation studied by using a modified DNA sequencer: a comparison with surface plasmon resonance data

Sobek, J., Rehauer, H., Landgraf, S. & Schlapbach, R., 2016, In : Methods and applications in fluorescence . 4, 1, p. 015002 16 p.

Research output: Contribution to journalArticleResearchpeer-review

Time-Resolved Fluorescence HPLC Detection Using Semiconductor Light Sources: Principles and Applications

Landgraf, S., 1 May 2016, In : Chemical Engineering & Technology. 39, p. 175-182

Research output: Contribution to journalArticleResearchpeer-review

2015

Photodeamination Reaction Mechanism in Aminomethyl p-Cresol Derivatives: Different Reactivity of Amines and Ammonium Salts

Landgraf, S., Skalamera, D., Bohne, C. & Basaric, N., 2015, In : The journal of organic chemistry. 80, p. 10817-10828

Research output: Contribution to journalArticleResearchpeer-review

2014

A Mechanistic Study of Photoinduced Electron Transfer from Triplet Erythrosin to Various Quinones Using Time Resolved Absorption and ESR-CIDEP Measurements

Landgraf, S., Grampp, G., Mansha, A., Asim, S. & Zahid, M., 2014, In : Zeitschrift für Physikalische Chemie. 228, 2-3, p. 301-324

Research output: Contribution to journalArticleResearchpeer-review

Diffusion of tetrathiafulvalene and its radical cation in ionic liquids in comparison to conventional solvents

Landgraf, S., Grampp, G., Rasmussen, K. & Ha, T. H. Y., 2014, In : Electrochimica acta. 141, p. 72-81

Research output: Contribution to journalArticleResearchpeer-review

Effect of solvent polarity and temperature on the spectral and thermodynamic properties of exciplexes of 1-cyanonaphthalene with hexamethylbenzene in organic solvents

Landgraf, S., Grampp, G., Asim, S., Mansha, A., Zahid, M. & Bhatti, I. A., 2014, In : Journal of luminescence. 153, p. 12-20

Research output: Contribution to journalArticleResearchpeer-review

EPR Spectroscopy of Mercury-Organic Compounds with Nitroxide Radicals

Landgraf, S., Grampp, G., Kokorin, A. & Shapiro, A. B., 2014, In : Applied Magnetic Resonance. 45, 2, p. 125-133

Research output: Contribution to journalArticleResearchpeer-review

"Spectral and thermodynamic properties for the exciplexes of N-alkyl carbazoles with dicyanobenzenes in THF

Landgraf, S., Grampp, G., Asim, S., Mansha, A., Zahid, M. & Bhatti, H. N., 2014, In : Spectrochimica acta / A. 118, p. 138-145

Research output: Contribution to journalArticleResearchpeer-review

2013

In situ monitoring magnetism and resistance of nanophase platinum upon electrochemical oxidation

Steyskal, E-M., Topolovec, S., Landgraf, S., Krenn, H. & Würschum, R., 2013, In : Beilstein Journal of Nanotechnology . 4, p. 394-399

Research output: Contribution to journalArticleResearchpeer-review

Single-molecule interactions studied by using a modified DNA sequencer: A comparison with surface plasmon resonance data

Sobek, J., Schauer, S., Rehrauer, H., Fischer, D., Patrignani, A., Landgraf, S. & Schlapbach, R., 2013, In : Proceedings of SPIE. 8596, p. 85960Y-85960Y

Research output: Contribution to journalArticleResearchpeer-review

Time-resolved Magnetic Field Effects distinguish Loose Ion Pairs from Exciplexes

Richert, S., Rosspeintner, A., Landgraf, S., Grampp, G., Vauthey, E. & Kattnig, D., 2013, In : Journal of the American Chemical Society. 135, p. 15144-15152

Research output: Contribution to journalArticleResearchpeer-review

2012

Experimental observation of preferential solvation on a radical ion pair using MARY spectroscopy

Pal, K., Kattnig, D., Grampp, G. & Landgraf, S., 2012, In : Physical chemistry, chemical physics. 14, p. 3155-3161

Research output: Contribution to journalArticleResearchpeer-review

Günter Grampp zum 65. Geburtstag

Landgraf, S. & Angulo Nunez, G. M., 2012, In : Bunsen-Magazin. 14, p. 256-257

Research output: Contribution to journalArticleResearch

High Pressure ESR Studies of Electron Self-Exchange Reactions of Organic Radicals in Solution

Rasmussen, K., Hussain, T., Landgraf, S. & Grampp, G., 2012, In : The journal of physical chemistry (Washington, DC) / A. 116, p. 193-198

Research output: Contribution to journalArticleResearchpeer-review

Sign-inversion of charging-induced variation of electrical resistance of nanoporous platinum

Steyskal, E-M., Besenhard, M., Landgraf, S., Zhong, Y., Weissmüller, J., Pölt, P., Albu, M. & Würschum, R., 2012, In : Journal of Applied Physics. p. 073703-1-073703-7

Research output: Contribution to journalArticleResearchpeer-review

2011

Photoinduced Electron Transfer between Triplet Erythrosin Dianion and Highly Charged Ionic Quenchers

Mansha, A., Grampp, G. & Landgraf, S., 2011, In : Monatshefte für Chemie = Chemical monthly. 142, p. 11-17

Research output: Contribution to journalArticleResearchpeer-review

Photophysical Electron Transfer Mediated Addition of Naphtylamine Derivatives to Electron-Deficient Alkenes

Jahjah, R., Gassama, A., Dumur, F., Marinkovic, S., Richert, S., Landgraf, S., Lebrun, A., Cadiou, C., Selles, P. & Hoffmann, N., 2011, In : The journal of organic chemistry. 76, p. 7104-7118

Research output: Contribution to journalArticleResearchpeer-review

2010

Adsorption-driven tuning of the electrical resistance of nanoporous gold

Wahl, P., Traußnig, T., Landgraf, S., Jin, H-J., Weissmüller, J. & Würschum, R., 2010, In : Journal of Applied Physics. 8, p. 073706-1-073706-6

Research output: Contribution to journalArticleResearchpeer-review

2009

Viscosity dependence of rubrene fluorescence quenching by organic radicals via energy transfer

Grampp, G., Justinek, M., Landgraf, S., Angulo Nunez, G. M. & Lukzen, A., 2009, In : Photochemical & photobiological sciences. 8, p. 1595-1602

Research output: Contribution to journalArticleResearchpeer-review

2008

Electron-self-exchange kinetics of the cyclooctatetraene/cyclooctatetraene radical-anion couple

Grampp, G., Grossmann, B., Heinze, J., Landgraf, S. & Rasmussen, K., 2008, In : ChemPhysChem. 9, p. 854-860

Research output: Contribution to journalArticleResearchpeer-review

Photomodulated voltammetry investigations on the benzyl radical

Grampp, G., Muresanu, C. & Landgraf, S., 2008, In : Electrochimica acta. 53, p. 3149-3155

Research output: Contribution to journalArticleResearchpeer-review

Spectroscopic characteristics of a novel highly fluorescent p-phenylenediamine: Tetracyano-p-phenylenediamine

Angulo Nunez, G. M., Grampp, G., Grilj, J., Jacques, P., Landgraf, S. & Rosspeintner, A., 2008, In : Journal of photochemistry and photobiology / A. 199, 2-3, p. 204-210

Research output: Contribution to journalArticleResearchpeer-review

The Rehm-Weller Experiment in View of Distant Electron Transfer

Rosspeintner, A., Kattnig, D., Angulo Nunez, G. M., Landgraf, S. & Grampp, G., 2008, In : Chemistry - A European Journal. 14, 20, p. 6213-6221

Research output: Contribution to journalArticleResearchpeer-review

2007

On the Coherent Description of Diffusion-Influenced Fluorescence

Rosspeintner, A., Kattnig, D., Angulo Nunez, G. M., Landgraf, S., Grampp, G. & Cuetos, A., 2007, In : Chemistry - A European Journal. 13, p. 6474-6483

Research output: Contribution to journalArticleResearchpeer-review

2006

Electrically Tunable Resistance of a Metal

Sagmeister, M., Brossmann, U., Landgraf, S. & Würschum, R., 2006, In : Physical Review Letters. 96, p. 156601-1-156601-4

Research output: Contribution to journalArticleResearchpeer-review

ESR and ENDOR Investigations of the Degenerate Electron Exchange Reactions of Various Viologens in Solution. Solvent Dynamical Effects.

Grampp, G., Mladenova, B. Y., Kattnig, D. & Landgraf, S., 2006, In : Applied Magnetic Resonance. 30, 2, p. 145-164

Research output: Contribution to journalArticleResearchpeer-review

Photoinduced cycloadditions of N-methyl-1,8-naphthalenedicarboximides with alkynes

Liu, Q-J., Shen, Y-M., Grampp, G., Landgraf, S. & Hu, J-H., 2006, In : Tetrahedron. 62, p. 1131-1138

Research output: Contribution to journalArticleResearchpeer-review

Photophysical properties of 2,6-dicyano-N,N,N ′,N ′-tetramethyl-p-phenylenediamine

Rosspeintner, A., Angulo Nunez, G. M., Weiglhofer, M., Landgraf, S. & Grampp, G., 2006, In : Journal of photochemistry and photobiology / A. 183, p. 2225-2235

Research output: Contribution to journalArticleResearchpeer-review

2005

ESR and ENDOR Investigations on Various Wurster's Radical Cations in Solution. Experimental Results, Theoretical ab initio, and DFT Calculations

Grampp, G., Kelterer, A-M., Landgraf, S., Sacher, M., Niethammer, D., Telo, J. P., Dias, R. M. B. & Vieira, A. J. S. C., 2005, In : Monatshefte für Chemie = Chemical monthly. 136, p. 519-536

Research output: Contribution to journalArticleResearchpeer-review

MARY spectroscopy: magnetic field effects on fluorescence intensities used for measuring electron transfer rates

Grampp, G., Hore, P. J., Justinek, M., Landgraf, S. & Lukzen, N. N., 2005, In : Research on chemical intermediates. 31, 7/8, p. 567-573

Research output: Contribution to journalArticleResearchpeer-review

Solvent Influence on the Electrochemical Reduction of Photochemically Generated cis –Azobenzene

Grampp, G., Muresanu, C. & Landgraf, S., 2005, In : Journal of electroanalytical chemistry. 582, p. 171-178

Research output: Contribution to journalArticleResearchpeer-review

2004

Electron Self-Exchange Kinetics Determined by MARY Spectroscopy: Theory and Experiment

Justinek, M., Grampp, G., Landgraf, S., Hore, P. J. & Lukzen, N. N., 2004, In : Journal of the American Chemical Society. 126, p. 5635-5646

Research output: Contribution to journalArticleResearchpeer-review

Kleine Bauteile ganz groß

Landgraf, S., 2004, In : ChemieReport.at. 6, p. 32-33

Research output: Contribution to journalArticleResearch

Redox Properties and Bond Dissociations Energies of Phenoxyl Radicals

Grampp, G., Landgraf, S. & Muresanu, C., 2004, In : Electrochimica acta. 49, p. 537-544

Research output: Contribution to journalArticleResearchpeer-review

2003

Excited state properties of an aza-analogue of distyrylbenzene. Solvent polarity and hydrogen-bonding effects

Fayed, T. A., Etaiw, S. E-D. H., Landgraf, S. & Grampp, G., 2003, In : Photochemical & photobiological sciences. 2, 4, p. 376-380

Research output: Contribution to journalArticleResearchpeer-review

2002

Book Review: The Blue Laser Diode. By Shuji Nakamura, Stephen Pearton, and Gerhard Fasol

Landgraf, S. & Grampp, G., 2002, In : Advanced Materials. 14, 2, p. 170

Research output: Contribution to journalArticleResearchpeer-review

Determination of electron self-exchange rate constants with MARY spectroscopy: Dependence on the fluorophore

Landgraf, S., Grampp, G. & Justinek, M., 2002, In : Physical chemistry, chemical physics. 4, 22, p. 5550-5553

Research output: Contribution to journalArticleResearchpeer-review

Dimerization of organic free radicals in solution. 1. Temperature dependent measurements

Landgraf, S., Grampp, G., Rasmussen, K. & Strauss, S., 2002, In : Spectrochimica acta / A. 58A, 6, p. 1219-1226

Research output: Contribution to journalArticleResearchpeer-review

Electron self-exchange kinetics in the systems pyrene/dicyanobenzene isomers determined by MARY spectroscopy

Landgraf, S., Justinek, M. & Grampp, G., 2002, In : RIKEN Review. 44, p. 82-84

Research output: Contribution to journalArticleResearchpeer-review

Magnetic field effects on the pyrene-dicyanobenzene system: determination of electron self-exchange rates by MARY spectroscopy

Landgraf, S., Landgraf, S., Justinek, M. & Grampp, G., 2002, In : Molecular physics. 100, 8, p. 1063-1070

Research output: Contribution to journalArticleResearchpeer-review

2001

Application of semiconductor light sources for investigations of photochemical reactions

Landgraf, S., 2001, In : Spectrochimica acta / A. 57A, 10, p. 2029-2048

Research output: Contribution to journalArticleResearchpeer-review

Anions
Negative ions
anions
Molecules
Electrons
2000

A subnanosecond time-resolved fluorescence lifetime spectrometer applying laser diodes

Landgraf, S. & Grampp, G., 2000, In : Monatshefte für Chemie = Chemical monthly. 131, 8, p. 839-848

Research output: Contribution to journalArticleResearchpeer-review

Experimental investigations on the viscosity effects on photoinduced electron transfer reactions in solution

Landgraf, S., Angulo Nunez, G. M., Grampp, G. & Sobek, J., 2000, In : Journal of Information Recording. 25, 3-4, p. 381-389

Research output: Contribution to journalArticleResearchpeer-review