Electron spin resonance study of copper(II) bis(diselenocarbamate) in liquid crystals

Abstract

The e.s.r. spectra of copper diselenocarbamate dissolved in various nematic solvents have been analyzed in terms of the orientational order parameters. Two Euler angles are found to be needed to specify the molecular orientation. The largest component of the g-tensor is confirmed to be parallel to the in-plane y-axis, as determined by the single crystal measurements, and the unusual lineshape of the spectra in both isotropic and nematic phase is interpreted on the basis of relaxation theories.