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Dr. Stephan Kupfer

Work group

Research Group Theoretical Chemistry

Stephan Kupfer Address: Helmholtzweg 4
D-07743 Jena
Room: K009, Bureau building
Phone: ++49-3641/9-48334
Fax: ++49-3641/9-48302

resonance Raman spectroscopy, transition metal complexes, photochemistry

Photonic Micelles - novel ways for artificial photosynthesis: a theoretical investigation

The project focuses at developing new light-driven catalysts for the production of hydrogen based on organometallic complexes and light harvesting dyes. Different dyes are applied to cover the entire visible spectrum. The energy transfer takes place from dye to dye via FRET (fluorescence resonant energy transfer) and to the organometallic complex based on ruthenium and osmium. In order to realize this concept, different groups are involved such as: macro molecular chemistry, organic chemistry, physics of functionalized micelles, organometallic chemistry, spectroscopy, bio-photonics and theoretical chemistry. My part of the project concentrates on the theoretical analysis of the photochemistry of antenna systems (dyes) and the characterization of the organometallic complexes. The ruthenium complexes are studied at the density functional theory and time denpendent - density functional theory level of theory, giving insight into the photochemistry of the excited states.

Publications of Stephan Kupfer

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Peer-reviewed Publications

46.Linda Zedler, Sven Krieck, Stephan Kupfer and Benjamin Dietzek,
Resonance Raman Spectro-Electrochemistry to Illuminate Photo-Induced Molecular Reaction Pathways.
Molecules, 24(2), 245 (2019).
45.Karl Michael Ziems, Stefanie Gräfe and Stephan Kupfer,
Photo-Induced Charge Separation vs. Degradation of a BODIPY-Based Photosensitizer Assessed by TDDFT and RASPT2.
Catalysts, 8(11), 520 (2018).
44.Vera Dugandzic, Stephan Kupfer, Martin Jahn, Thomas Henkel, Karina Weber, Dana Cialla-May and Jürgen Popp,
A SERS-based molecular sensor for selective detection and quantification of copper(II) ions.
Sensors and Actuators B: Chemical, 10.1016/j.snb.2018.09.098 (2018).
43.Ying Zhang, Philipp Traber, Linda Zedler, Stephan Kupfer, Stefanie Gräfe, Martin Schulz, Wolfgang Frey, Michael Karnahl and Benjamin Dietzek,
Cu(I) vs. Ru(II) complexes — photophysical and electrochemical behavior of a series of structurally related photosensitizers.
Phys. Chem. Chem. Phys., 10.1039/C8CP04595J (2018).
42.Julian Schindler, Philipp Traber, Linda Zedler, Ying Zhang, Jean-Francois Lefebvre, Stephan Kupfer, Stefanie Gräfe, Martine Demeunynck, Murielle Chavarot-Kerlidou and Benjamin Dietzek,
Photophysics of a Ruthenium Complex with a π-Extended Dipyridophenazine Ligand for DNA Quadruplex Labeling.
J. Phys. Chem. A, 10.1021/acs.jpca.8b05274 (2018).
41.Magdalena Staniszewska, Stephan Kupfer and Julien Guthmuller,
Theoretical investigation of the electron transfer dynamics and photodegradation pathways in a hydrogen-evolving ruthenium-palladium photocatalyst.
Chemistry - A European Journal, 10.1002/chem.201801698 (2018).
40.Jean-François Lefebvre, Julian Schindler, Philipp Traber, Ying Zhang, Stephan Kupfer, Stefanie Gräfe, Isabelle Baussanne, Martine Demeunynck, Jean-Marie Mouesca, Serge Gambarelli, Vincent Artero, Benjamin Dietzek and Murielle Chavarot-Kerlidou,
An artificial photosynthetic system for photoaccumulation of two electrons on a fused dipyridophenazine (dppz) – pyridoquinolinone ligand .
Chem. Sci., 10.1039/C7SC04348A (2018).
39.Julian Schindler, Stephan Kupfer, Aoife A. Ryan, Keith J. Flanagan, Mathias O. Senge and Benjamin Dietzek,
Sterically induced distortions of nickel(II) porphyrins – Comprehensive investigation by DFT calculations and resonance Raman spectroscopy.
Coord. Chem. Rev., 360, 1-16 (2018).
38.Georgina Shillito, Thomas B. J. Hall, Dan Preston, Philipp Traber, Wu Wu, Katherine Reynolds, Raphael Horvath, Xue Zhong Sun, Nigel T. Lucas, James D. Crowley, Michael W. George, Stephan Kupfer and Keith C. Gordon,
Dramatic alteration of 3ILCT lifetimes using ancillary ligands in [Re(L)(CO)3(phen-TPA)]n+ complexes: an integrated spectroscopic and theoretical study .
J. Am. Chem. Soc., 10.1021/jacs.7b12868 (2018).
37.Stephan Kupfer, Daniel Kinzel, Michael Siegmann, Jule Philipp, Benjamin Dietzek and Stefanie Gräfe,
Fate of Photo-Excited Molecular Antennae - Inter-Molecular Energy Transfer vs. Photodegradation Assessed by Quantum Dynamics.
J. Phys. Chem. C, 10.1021/acs.jpcc.7b12190 (2018).

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