摘要:
The complex [Cu(pepci)Br]PF6 [pepci = N-(2-pyridylethyl)pyridine-2-carbaldimine] has been synthesised and characterization by X-ray crystallography shows it to contain cationic mono-mu-bromocopper(II) chains, with two crystallographically independent consecutive cations forming -Cu(pepci)-Br-Cu(pepci)-Br-units which repeat by translation to give the chain structure, and isolated PF6- counter ions; the ESR spectrum, showing the forbidden DELTA-M(s) = 2 transition, is indicative of interactions between copper(II) pairs, and the preliminary magnetic susceptibility data indicate a weak antiferromagnetic behaviour.