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- Title
The Tetracyanopyrrolide Anion as Ligand in Transition Metal Complexes.
- Authors
Szafranowska, Barbara; Beck, Johannes
- Abstract
Two isotypic mononuclear discrete complexes [Co(MeCN)4(tcp)2] ·2MeCN ( 1) and [Ni(MeCN)4(tcp)2] ·2MeCN ( 2) containing the tetracyanopyrrolide anion [C4(CN)4N]- (tcp) were synthesized from [Me4N]tcp and the respective metal perchlorates in acetone/acetonitrile. Tcp coordinates to the transition metal atoms in η1 fashion via the nitrogen atom of the pyrrole ring. No coordination via the cyano groups is observed. Both complexes show nearly ideal paramagnetic behavior according to the Curie law with magnetic moments of 4.98 μB for 1 and 3.09 μB for 2. In the presence of Cu2+ ions tcp reacts with traces of water under hydrolysis of one cyano group to tricyanopyrrole-2-carboxamide (NC4(CN)3C(O)NH2)- (tcpc). From solutions in DMF the complex [Cu(tcpc)2(DMF)2] ( 3) is isolated.
- Subjects
TRANSITION metal complexes; LIGANDS (Chemistry); METAL complexes; COORDINATION compounds; ACETONITRILE
- Publication
Zeitschrift für Anorganische und Allgemeine Chemie, 2014, Vol 640, Issue 10, p1960
- ISSN
0044-2313
- Publication type
Article
- DOI
10.1002/zaac.201400199