Magnetic exchange interactions in tetrabromocuprate compounds

✍ Scribed by Mark M. Turnbull; Christopher P. Landee; Brian M. Wells

• Publisher: Elsevier Science
• Year: 2005
• Tongue: English
• Weight: 307 KB
• Volume: 249
• Category: Article
• ISSN: 0010-8545
• DOI: 10.1016/j.ccr.2005.01.015

✦ Synopsis

Magnetic and structural data for 28 compounds containing the tetrabromocuprate ion are presented. The parameters which affect the strength and sign of the magnetic superexchange interaction via non-bonding contacts between bromide ions are described and a system for describing the topology of the interaction between tetrahedra is proposed. Analysis of the data suggests that the primary factors affecting the magnetic exchange are the Br• • •Br distance, the Cu-Br• • •Br angle and the Cu-Br• • •Br-Cu dihedral angle.