The complexes LM(CO)5 (L = 4-cyanopyridine and M = Cr, Mo, W) were reduced by K in THF and at a glassy C electrode in DMF. The resulting radical anion complexes LM(CO)5-. were also obtained from replacement reactions of the metal hexacarbonyls with the ligand radical anion L-. or via electron transfer from decacarbonyldimetalates to the free ligand L. The radical complexes were characterized by high resoln. ESR. The unpaired electron resides predominately in the heterocyclic ligand; only minor perturbations of spin distribution occur via the metal fragments. The results are related to the MLCT features in the electronic spectra of these complexes. on SciFinder(R)
%0 Journal Article
%1 Kaim.1984l
%A Kaim, Wolfgang.
%D 1984
%J Inorganic Chemistry
%K Group VIB carbonyl chem chromium complex;ESR complex;tungsten cyanopyridine cyanopyridine;molybdenum electrochem electroredn electroredn;cyanopyridine electroredn;redn pentacarbonyl redn redn;electroredn
%N 4
%P 504--506
%R 10.1021/ic00172a025
%T Chemical and electrochemical reduction of pentacarbonyl(4-cyanopyridine) complexes of chromium(0), molybdenum(0) and tungsten(0)
%V 23
%X The complexes LM(CO)5 (L = 4-cyanopyridine and M = Cr, Mo, W) were reduced by K in THF and at a glassy C electrode in DMF. The resulting radical anion complexes LM(CO)5-. were also obtained from replacement reactions of the metal hexacarbonyls with the ligand radical anion L-. or via electron transfer from decacarbonyldimetalates to the free ligand L. The radical complexes were characterized by high resoln. ESR. The unpaired electron resides predominately in the heterocyclic ligand; only minor perturbations of spin distribution occur via the metal fragments. The results are related to the MLCT features in the electronic spectra of these complexes. on SciFinder(R)
@article{Kaim.1984l,
abstract = {The complexes [LM(CO)5] (L = 4-cyanopyridine and M = Cr, Mo, W) were reduced by K in THF and at a glassy C electrode in DMF. The resulting radical anion complexes [LM(CO)5]-. were also obtained from replacement reactions of the metal hexacarbonyls with the ligand radical anion L-. or via electron transfer from decacarbonyldimetalates to the free ligand L. The radical complexes were characterized by high resoln. ESR. The unpaired electron resides predominately in the heterocyclic ligand; only minor perturbations of spin distribution occur via the metal fragments. The results are related to the MLCT features in the electronic spectra of these complexes. [on SciFinder(R)]},
added-at = {2019-07-15T13:41:23.000+0200},
author = {Kaim, Wolfgang.},
biburl = {https://puma.ub.uni-stuttgart.de/bibtex/25056e1fad6ccf8772eaa446088a4cf10/b_schwederski},
doi = {10.1021/ic00172a025},
interhash = {d86f453cd52b5ebeb4eac3a93ee78896},
intrahash = {5056e1fad6ccf8772eaa446088a4cf10},
issn = {0020-1669},
journal = {Inorganic Chemistry},
keywords = {Group VIB carbonyl chem chromium complex;ESR complex;tungsten cyanopyridine cyanopyridine;molybdenum electrochem electroredn electroredn;cyanopyridine electroredn;redn pentacarbonyl redn redn;electroredn},
number = 4,
pages = {504--506},
timestamp = {2019-07-15T11:42:10.000+0200},
title = {Chemical and electrochemical reduction of pentacarbonyl(4-cyanopyridine) complexes of chromium(0), molybdenum(0) and tungsten(0)},
volume = 23,
year = 1984
}
