title: Electronic structure and solution behavior of a tris(N,N'-diphenylhydrazido)manganese(IV) propeller complex.
abstract: The electronic structure and magnetic properties of the manganese(IV) trihydrazide propeller complex, Li(2)Mn(κ(2)-PhN-NPh)(3)L(2) (1, L = tetrahydrofuran, diethyl ether), are explored. EPR and solid-state magnetometry studies are indicative of a high spin Mn(IV) with a S = 3/2 spin state. Solution-phase magnetic measurements result in a measured μ(eff) less than that expected for a S = 3/2, indicating a solution-phase equilibrium with a lower-spin species. Concentration-dependent magnetic susceptibility measurements identify clustering of 1 to an antiferromagnetically coupled multinuclear complex as the most likely explanation for the solution behavior. Comparative infrared spectroscopy in solution and solid phase are described which support speciation in solution.
authors.affiliation: Department of Chemistry, Temple University, Philadelphia, PA 19122, USA.
authors.forename: Sandeep K
authors.initials: SK
authors.lastname: Kondaveeti
authors.forename: Shivaiah
authors.initials: S
authors.lastname: Vaddypally
authors.forename: Jeffrey D
authors.initials: JD
authors.lastname: McCall
authors.forename: Michael J
authors.initials: MJ
authors.lastname: Zdilla