A dimeric copper(II) 4-chlorophenoxyisobutyrate adduct with methanol and a monomeric copper(II) 4-chlorophenoxyisobutyrate adduct with pyridine

Article abstract of DOI:10.1107/S0108270197012973

In the crystal structure of tetrakis(μ-4-chlorophenoxyisobutyrato-O, O′)di(methanol-O)dicopper(II) dimethanol solvate, [Cu(pciba)₂(CH₃OH)]₂.2CH₃OH (pcibaH is 4-chlorophenoxyisobutyric acid, C₁₀H₁₁ClO₃), there is a dinuclear Cu^II complex which has a typical cage structure with a Cu...Cu distance of 2.6437 (4) A. The magnetic -2J value is 360cm^-1 (H = -2JS₁.S₂). In the crystal structure of trans-bis(4-chlorophenoxyisobutyrato-O,O′) dipyridinecopper(II), [Cu(pciba)₂-(C₅H₅N)₂], the monomeric Cu^II complex has a distorted octahedral coordination.