Half-sandwich rhodium and iridium 2,3-bis(2-pyridyl)pyrazine (2,3-bppz) complexes were prepd. and characterized by crystal structure detns. and cyclic voltammetry. Reaction of Cp*MCl22 with free 2,3-bppz afforded monomeric Cp*MCl(2,3-bppz)PF6, whereas the same reaction in the presence of AgPF6 gave dimeric Cp*MCl2(m-2,3-bppz)PF62 (Cp* = h5-C5Me5, M = Rh, Ir). Crystal structure of the monomeric iridium complex features essentially nonplanar 2,3-bppz ligand, coordinated by one of its pyrazine and pyridine nitrogens. The prepd. complexes were investigated by cyclic voltammetry and UV/VIS-spectroelectrochem. For both the mononuclear and, unusually, the dinuclear complexes only chloride-dissociative two-electron redn. processes were obsd. on SciFinder(R)
%0 Journal Article
%1 Berger.2004b
%A Berger, Sascha
%A Scheiring, Thomas
%A Fiedler, Jan
%A Kaim, Wolfgang.
%D 2004
%J Zeitschrift fuer Anorganische und Allgemeine Chemie
%K binuclear bis complex complex;mol complex;redox complex;rhodium crystal half iridium mononuclear pentamethylcyclopentadienyl potential prepn pyridylpyrazine rhodium sandwich structure
%N 13-14
%P 2409--2417
%R 10.1002/zaac.200400133
%T Coupling of organometallic reaction centers through the non-planar bridging ligand 2,3-bis(2-pyridyl)pyrazine
%V 630
%X Half-sandwich rhodium and iridium 2,3-bis(2-pyridyl)pyrazine (2,3-bppz) complexes were prepd. and characterized by crystal structure detns. and cyclic voltammetry. Reaction of Cp*MCl22 with free 2,3-bppz afforded monomeric Cp*MCl(2,3-bppz)PF6, whereas the same reaction in the presence of AgPF6 gave dimeric Cp*MCl2(m-2,3-bppz)PF62 (Cp* = h5-C5Me5, M = Rh, Ir). Crystal structure of the monomeric iridium complex features essentially nonplanar 2,3-bppz ligand, coordinated by one of its pyrazine and pyridine nitrogens. The prepd. complexes were investigated by cyclic voltammetry and UV/VIS-spectroelectrochem. For both the mononuclear and, unusually, the dinuclear complexes only chloride-dissociative two-electron redn. processes were obsd. on SciFinder(R)
@article{Berger.2004b,
abstract = {Half-sandwich rhodium and iridium 2,3-bis(2-pyridyl)pyrazine (2,3-bppz) complexes were prepd. and characterized by crystal structure detns. and cyclic voltammetry. Reaction of [Cp*MCl2]2 with free 2,3-bppz afforded monomeric [Cp*MCl(2,3-bppz)][PF6], whereas the same reaction in the presence of AgPF6 gave dimeric [[Cp*MCl]2(\textgreek{m}-2,3-bppz)][PF6]2 (Cp* = \textgreek{h}5-C5Me5, M = Rh, Ir). Crystal structure of the monomeric iridium complex features essentially nonplanar 2,3-bppz ligand, coordinated by one of its pyrazine and pyridine nitrogens. The prepd. complexes were investigated by cyclic voltammetry and UV/VIS-spectroelectrochem. For both the mononuclear and, unusually, the dinuclear complexes only chloride-dissociative two-electron redn. processes were obsd. [on SciFinder(R)]},
added-at = {2022-06-15T11:26:56.000+0200},
author = {Berger, Sascha and Scheiring, Thomas and Fiedler, Jan and Kaim, Wolfgang.},
biburl = {https://puma.ub.uni-stuttgart.de/bibtex/2066fed5f0e9415fa90498794f7b1b9bf/huebleriac},
doi = {10.1002/zaac.200400133},
interhash = {1c6b6ae5b6175ca700b26ce93d9029cd},
intrahash = {066fed5f0e9415fa90498794f7b1b9bf},
issn = {0044-2313},
journal = {Zeitschrift fuer Anorganische und Allgemeine Chemie},
keywords = {binuclear bis complex complex;mol complex;redox complex;rhodium crystal half iridium mononuclear pentamethylcyclopentadienyl potential prepn pyridylpyrazine rhodium sandwich structure},
number = {13-14},
pages = {2409--2417},
timestamp = {2022-06-15T09:26:56.000+0200},
title = {Coupling of organometallic reaction centers through the non-planar bridging ligand 2,3-bis(2-pyridyl)pyrazine},
volume = 630,
year = 2004
}
