Role of Jahn-Teller Effect in the Ligand Field Theory of Octahedrally Coordinated Trisacetylacetonato Manganese

✍ Scribed by B. D. Bhattacharyya

• Publisher: John Wiley and Sons
• Year: 1971
• Tongue: English
• Weight: 422 KB
• Volume: 43
• Category: Article
• ISSN: 0370-1972
• DOI: 10.1002/pssb.2220430206

✦ Synopsis

Abstract

A theoretical expression for the magnetic susceptibility and anisotropy of an Mn (111) ion having trigonal symmetry in octahedral trisacetylacetonato manganese have been derived on the basis of the more general molecular orbital method of Van Vleck, Stevens, and Bose et al., considering quantum mechanical tunnelling which links equivalent vibronic states of the Jahn‐Teller ion. Attempts have been made to fit the experimental data of optical absorption and magnetic susceptibility with a unique set of parameters in the theoretical expressions at all temperatures. From this an estimate of the parameters which describe the Jahn‐Teller potential is made.