Single-crystal electron spin resonance and electronic spectra of bis-(β-alaninato)copper(II) hexahydrate

Abstract

The single-crystal e.s.r. and polarized electronic spectra of the title complex are reported. The data are interpreted by use of a crystal-field model (approximate D_2hsymmetry, 1 ODq≃ 13 000 cm^–l, Cp≃ 2 300 cm^–l) and are seen to be consistent with the relative one-electron orbital energies d_x²-y² > d_z² > d_xy > d_xz > d_yz. Anisotropic orbital-reduction factors are also obtained and briefly discussed (K_Z 0.775, K_X=K_y= 0.81).