title: Bis[(2-pyridyl)(2-pyridylamino)methanolato]cobalt(III) perchlorate: a consequence of cobalt ion-assisted oxidative deamination of a tris(pyridyl)aminal ligand.
abstract: The title compound, [Co(C11H10N3O)2]ClO4, designated [Co(L2)2]ClO4, was synthesized by reaction of Co(II) with two molar equivalents of (2-pyridyl)bis(2-pyridylamino)methane (L1) under ambient conditions, whereby the divalent metal ion was oxidized concomitantly with oxygenation and deamination of the aminal polydentate ligand to generate the tridentate ligand anion (2-pyridyl)(2-pyridylamino)methanolate, L2-. In the X-ray crystal structure of the complex cation, [Co(L2)2]+, the two L2- ligands are coordinated to the central cobalt(III) metal ion in a facial mode to afford a pseudo-octahedral geometry. The four pyridyl N atoms constitute the equatorial plane on which the cobalt(III) ion lies; the methanolate O atoms occupy the axial positions.
authors.affiliation: Department of Chemistry, University of Sheffield, Brook Hill, Sheffield S3 7HF, England. h.adams@sheffield.ac.uk
authors.forename: Harry
authors.initials: H
authors.lastname: Adams
authors.forename: Musa S
authors.initials: MS
authors.lastname: Shongwe
authors.forename: Ibtisam
authors.initials: I
authors.lastname: Al-Bahri
authors.forename: Eiman
authors.initials: E
authors.lastname: Al-Busaidi
authors.forename: Michael J
authors.initials: MJ
authors.lastname: Morris