TY - JOUR AU - Hoffmann, Alexander AU - Binder, Stephan AU - Jesser, Anton AU - Haase, Roxana AU - Flörke, Ulrich AU - Gnida, Manuel AU - Salomone Stagni, Marco AU - Meyer-Klaucke, Wolfram AU - Lebsanft, Benjamin AU - Grünig, Lara Elena AU - Schneider, Simon AU - Hashemi, Maryam AU - Goos, Arne AU - Wetzel, Alina AU - Rübhausen, Michael AU - Herres-Pawlis, Sonja TI - Catching an Entatic State-A Pair of Copper Complexes JO - Angewandte Chemie / International edition VL - 53 IS - 1 SN - 1433-7851 CY - Weinheim PB - Wiley-VCH M1 - PUBDB-2023-04789 SP - 299 - 304 PY - 2014 AB - The structures of two types of guanidine–quinoline copper complexes have been investigated by single-crystal X-ray crystallography, K-edge X-ray absorption spectroscopy (XAS), resonance Raman and UV/Vis spectroscopy, cyclic voltammetry, and density functional theory (DFT). Independent of the oxidation state, the two structures, which are virtually identical for solids and complexes in solution, resemble each other strongly and are connected by a reversible electron transfer at 0.33 V. By resonant excitation of the two entatic copper complexes, the transition state of the electron transfer is accessible through vibrational modes, which are coupled to metal–ligand charge transfer (MLCT) and ligand–metal charge transfer (LMCT) states. LB - PUB:(DE-HGF)16 C6 - pmid:24375742 UR - <Go to ISI:>//WOS:000328714900047 DO - DOI:10.1002/anie.201306061 UR - https://bib-pubdb1.desy.de/record/588174 ER -