title: The synthesis, spectroscopy and X-ray single crystal structure of catena-[(μ-anacardato)-copper(II)bipyridine][Cu2{(μ-O2CC6H3(o-OH)(o-C15H31)}4(NC5H5)2].
abstract: Hydrogenation of crude anacardic acid gave a transparent crystalline product on recrystallization. When reacted with copper nitrate in the presence of pyridine it produced green crystals of a pyridine adduct of a dimeric copper(II) anacardate with the copper acetate structure. The X-ray single crystal structures of both anacardic acid and the copper complex were determined. Magnetic studies have confirmed strong antiferromagnetic coupling between copper(II) centre in the dimer. The exchange coupling constant was determined to be J = -324 cm(-1). The EPR spectra of the polycrystalline product are consistent with spin S = 1. The zero-field splitting parameter and g tensor values are |D| = 0.36 cm(-1), g(||) = 2.36 and g(⊥) = 2.06.
authors: The School of Materials and the School of Chemistry, The University of Manchester, Oxford Road, Manchester, M13 9PL, UK. azad.malik@manchester.ac.uk robin.pritchard@manchester.ac.uk paul.obrien@manchester.ac.uk.
authors: Mohammad Azad
authors: MA
authors: Malik
authors: Paul
authors: P
authors: O'Brien
authors: Floriana
authors: F
authors: Tuna
authors: Robin
authors: R
authors: Pritchard
authors: Joseph
authors: J
authors: Buchweishaija
authors: Elianaso
authors: E
authors: Kimambo
authors: Egid B
authors: EB
authors: Mubofu
mesh_terms: D056831:Coordination Complexes / Q000138:chemical synthesis* / Q000737:chemistry*; D018360:Crystallography, X-Ray; D004578:Electron Spin Resonance Spectroscopy; D008958:Models, Molecular; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000138:chemical synthesis* / Q000737:chemistry*; D012459:Salicylates / Q000138:chemical synthesis* / Q000737:chemistry*
chemical_list: D056831:Coordination Complexes; D009942:Organometallic Compounds; D012459:Salicylates