The bidentate complex ligands 2,2'-bipyridine, 4,4'-dimethyl-2,2'-bipyridine 1,10-phenanthroline, and 4,7-dimethyl-1,10-phenanthroline were reduced to radical anions by K metal and to organomagnesium radical complexes in a single electron transfer reaction of Ph2Mg. Well resolved ESR were analyzed on the basis of HMO calcns. In the case of the 1,10-phenanthrolines there are 2 LUMOs available to accommodate the addnl. electron; a comparison of the spin distributions demonstrates that, in contrast to earlier assumptions, it is the 5b1 orbital that is singly occupied. This result explains the similar properties of corresponding 2,2'-bipyridine and 1,10-phenanthroline metal complexes. on SciFinder(R)
%0 Journal Article
%1 Kaim.1982g
%A Kaim, Wolfgang.
%D 1982
%J Journal of the American Chemical Society
%K bipyridine complex complex;electron complex;phenanthroline ligand;ESR magnesium radical transfer
%N 14
%P 3833--3837
%R 10.1021/ja00378a010
%T Electron transfer to complex ligands. Radical anions and organomagnesium radical complexes of 2,2'-bipyridines and 1,10-phenanthrolines
%V 104
%X The bidentate complex ligands 2,2'-bipyridine, 4,4'-dimethyl-2,2'-bipyridine 1,10-phenanthroline, and 4,7-dimethyl-1,10-phenanthroline were reduced to radical anions by K metal and to organomagnesium radical complexes in a single electron transfer reaction of Ph2Mg. Well resolved ESR were analyzed on the basis of HMO calcns. In the case of the 1,10-phenanthrolines there are 2 LUMOs available to accommodate the addnl. electron; a comparison of the spin distributions demonstrates that, in contrast to earlier assumptions, it is the 5b1 orbital that is singly occupied. This result explains the similar properties of corresponding 2,2'-bipyridine and 1,10-phenanthroline metal complexes. on SciFinder(R)
@article{Kaim.1982g,
abstract = {The bidentate complex ligands 2,2'-bipyridine, 4,4'-dimethyl-2,2'-bipyridine 1,10-phenanthroline, and 4,7-dimethyl-1,10-phenanthroline were reduced to radical anions by K metal and to organomagnesium radical complexes in a single electron transfer reaction of Ph2Mg. Well resolved ESR were analyzed on the basis of HMO calcns. In the case of the 1,10-phenanthrolines there are 2 LUMOs available to accommodate the addnl. electron; a comparison of the spin distributions demonstrates that, in contrast to earlier assumptions, it is the 5b1 orbital that is singly occupied. This result explains the similar properties of corresponding 2,2'-bipyridine and 1,10-phenanthroline metal complexes. [on SciFinder(R)]},
added-at = {2022-06-15T11:26:56.000+0200},
author = {Kaim, Wolfgang.},
biburl = {https://puma.ub.uni-stuttgart.de/bibtex/215308af2ad0414e72d85d3758adcec29/huebleriac},
doi = {10.1021/ja00378a010},
interhash = {66bddd2f2da48bc35250a1c806af884f},
intrahash = {15308af2ad0414e72d85d3758adcec29},
issn = {0002-7863},
journal = {Journal of the American Chemical Society},
keywords = {bipyridine complex complex;electron complex;phenanthroline ligand;ESR magnesium radical transfer},
number = 14,
pages = {3833--3837},
timestamp = {2022-06-15T09:26:56.000+0200},
title = {Electron transfer to complex ligands. Radical anions and organomagnesium radical complexes of 2,2'-bipyridines and 1,10-phenanthrolines},
volume = 104,
year = 1982
}