[2‐(2‐{Bis[2‐(1H‐imidazol‐2‐ylmethyleneamino)ethyl]amino}ethyliminomethyl)imidazolido]cobalt(III) bis(tetrafluoridoborate) monohydrate |
| |
Authors: | Ana Marí a Atria,Gino Corsini,Arlyn Talamilla,Maria Teresa Garland,Ricardo Baggio |
| |
Abstract: | The title compound, [Co(C18H23N10)](BF4)2·H2O, is the result of complexing a Co cation (initially in a CoII state) with tris[2‐(1H‐imidazol‐2‐ylmethyleneamino)ethyl]amine (L), obtained by a condensation process involving imidazole‐2‐carbaldehyde and tris(2‐aminoethyl)amine. Both the Co cation and the ligand were modified in the synthesis process, the cation via oxidation to CoIII, and the ligand via deprotonation to convert it into the 2‐(2‐{bis[2‐(1H‐imidazol‐2‐ylmethyleneamino)ethyl]amino}ethyliminomethyl)imidazolide anion (L−). The ligand chelates the metal centre in a hexadentate fashion, forming a slightly distorted octahedral CoN6 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. |
| |
Keywords: | |
|
|