[2-(2-{Bis[2-(1H-imidazol-2-ylmethyl-eneamino)ethyl] amino} ethylimino-methyl) imidazolido] cobalt(III) bis(tetrafluoridoborate) monohydrate

Atria, AM; Corsini, G; Talamilla, A; Garland, MT; Baggio R.

Abstract

The title compound, [Co(C 18H 23N 10)] (BF 4) 2·H 2O, is the result of complexing a Co cation (initially in a Co II state) with tris-[2-(1H-imidazol-2- ylmethyl-eneamino)eth-yl]amine (L), obtained by a condensation process involving imidazole-2-carbaldehyde and tris-(2-amino-ethyl)amine. Both the Co cation and the ligand were modified in the synthesis process, the cation via oxidation to Co III, and the ligand via deprotonation to convert it into the 2-(2-{bis-[2-(1H-imidazol-2-ylmethyl-eneamino)eth-yl]amino}ethyl-imino-meth-yl) imidazolide anion (L -). The ligand chelates the metal centre in a hexa-dentate fashion, forming a slightly distorted octa-hedral CoN 6 chromophore. Packing is governed by N - H⋯N hydrogen bonds defining zigzag chains. A similar structure in the literature is discussed, and the wrong assignment of the oxidation state, given therein to the Co cation, is corrected. © 2008 International Union of Crystallography.

Más información

Título según WOS: [2-(2-{Bis[2-(1H-imidazol-2-ylmethyl-eneamino)ethyl] amino} ethylimino-methyl) imidazolido] cobalt(III) bis(tetrafluoridoborate) monohydrate
Título según SCOPUS: [2-(2-{Bis[2-(1H-imidazol-2-ylmethyleneamino) thyl]amino}ethyliminomethyl) midazolido]cobalt(III) bis(tetrafluoridoborate) monohydrate
Título de la Revista: ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS
Volumen: 64
Número: 12
Editorial: WILEY-BLACKWELL PUBLISHING, INC
Fecha de publicación: 2008
Página de inicio: M387
Página final: M389
Idioma: English
DOI:

10.1107/S0108270108033714

Notas: ISI, SCOPUS