TY  - JOUR
A1  - Kaim, Wolfgang
T1  - Das Reduktionsverhalten von Pentacarbonylpyridin-Komplexen des Chroms, Molybdäns und Wolframs
T1  - The reduction behaviour of pentacarbonylpyridinechromium, -molybdenum and -tungsten complexes
T2  - Zeitschrift für Naturforschung, B
N2  - The reduction of group VIB metal pentacarbonyl complexes and of iodomethylates of 4- trimethylsilyl-, 4-acetyl- and 4-cyanopyridine has been investigated. Informations on the dissociation of the complexes and on the potential and reversibility of the one-electron reduction were obtained by cyclic voltammetry in DMF, whereas electron spin resonance (ESR) studies of the primary reduction products in the 4-acetylpyridine series revealed the distribution of the unpaired electron. The results suggest that the lowest unoccupied molecular orbital (LUMO) is a ligand centered π*-orbital in the 4-acetyl- and 4-cyanopyridine complexes, thus confirming assignments from photochemistry. The results allow an assessment of both N-coordination and substituent effects at the heterocyclic ligand.
KW  - Carbonyl Complexes
KW  - Electrochemistry
KW  - ESR Spectra
KW  - Molecular Orbitals
KW  - Substituent Effects
Y1  - 2014
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/71978
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-719789
SN  - 1865-7117
SN  - 0932-0776
VL  - 39.1984
IS  - 6
SP  - 801
EP  - 807
PB  - Verlag der Zeitschrift für Naturforschung
CY  - Tübingen
ER  -