Coordination ambivalence and electron structure of mono- and binuclear methylcyclopentadienylmanganese dicarbonyl complexes of cyanopyridine and terephthalodinitrile
R. Gross, and W. Kaim. Journal of Organometallic Chemistry, 333 (3):
347--365(1987)
Abstract
Ambident cyanopyridine ligands form N(pyridine) and N'(nitrile) coordinated mono- and binuclear complexes with the (C5H4Me)(CO)2Mn (C5H5 = cyclopentadienyl) fragment. All 3 possible forms for 4-cyanopyridine were isolated, whereas mononuclear compds. were obtained as most stable species in N1-coordinated form with 3-cyanopyridine and in CN2-coordinated form with the 2-isomer. IR, NMR, and UV/VIS spectroscopy as well as electrochem. and ESR spectroscopy of the anion radicals demonstrate superior p back-bonding via the pyridine N centers; the isolation of nitrile coordinated complexes is attributed to the kinetic stability of the CN-Mn bond. A neutral binuclear complex was isolated with the stronger p-acceptor, tetrafluoroterephthalonitrile. on SciFinder(R)
%0 Journal Article
%1 Gross.1987
%A Gross, Renate
%A Kaim, Wolfgang.
%D 1987
%J Journal of Organometallic Chemistry
%K ambivalence complex complex;electrochem coordination cyanopyridine methylcyclopentadienyl methylcyclopentadienylmanganese redox terephthalonitrile terephthalonitrile;manganese terephthalonitrile;methylcyclopentadienylmanganese
%N 3
%P 347--365
%T Coordination ambivalence and electron structure of mono- and binuclear methylcyclopentadienylmanganese dicarbonyl complexes of cyanopyridine and terephthalodinitrile
%V 333
%X Ambident cyanopyridine ligands form N(pyridine) and N'(nitrile) coordinated mono- and binuclear complexes with the (C5H4Me)(CO)2Mn (C5H5 = cyclopentadienyl) fragment. All 3 possible forms for 4-cyanopyridine were isolated, whereas mononuclear compds. were obtained as most stable species in N1-coordinated form with 3-cyanopyridine and in CN2-coordinated form with the 2-isomer. IR, NMR, and UV/VIS spectroscopy as well as electrochem. and ESR spectroscopy of the anion radicals demonstrate superior p back-bonding via the pyridine N centers; the isolation of nitrile coordinated complexes is attributed to the kinetic stability of the CN-Mn bond. A neutral binuclear complex was isolated with the stronger p-acceptor, tetrafluoroterephthalonitrile. on SciFinder(R)
@article{Gross.1987,
abstract = {Ambident cyanopyridine ligands form N(pyridine) and N'(nitrile) coordinated mono- and binuclear complexes with the (C5H4Me)(CO)2Mn (C5H5 = cyclopentadienyl) fragment. All 3 possible forms for 4-cyanopyridine were isolated, whereas mononuclear compds. were obtained as most stable species in N1-coordinated form with 3-cyanopyridine and in CN2-coordinated form with the 2-isomer. IR, NMR, and UV/VIS spectroscopy as well as electrochem. and ESR spectroscopy of the anion radicals demonstrate superior \textgreek{p} back-bonding via the pyridine N centers; the isolation of nitrile coordinated complexes is attributed to the kinetic stability of the CN-Mn bond. A neutral binuclear complex was isolated with the stronger \textgreek{p}-acceptor, tetrafluoroterephthalonitrile. [on SciFinder(R)]},
added-at = {2019-07-15T13:41:23.000+0200},
author = {Gross, Renate and Kaim, Wolfgang.},
biburl = {https://puma.ub.uni-stuttgart.de/bibtex/28d6f100e00f2c2f9c83d1095119bdd7d/b_schwederski},
interhash = {b79858c8dfaea611240f39f1a3dd06a3},
intrahash = {8d6f100e00f2c2f9c83d1095119bdd7d},
journal = {Journal of Organometallic Chemistry},
keywords = {ambivalence complex complex;electrochem coordination cyanopyridine methylcyclopentadienyl methylcyclopentadienylmanganese redox terephthalonitrile terephthalonitrile;manganese terephthalonitrile;methylcyclopentadienylmanganese},
number = 3,
pages = {347--365},
timestamp = {2019-07-15T11:42:10.000+0200},
title = {Coordination ambivalence and electron structure of mono- and binuclear methylcyclopentadienylmanganese dicarbonyl complexes of cyanopyridine and terephthalodinitrile},
volume = 333,
year = 1987
}
