Zero field tensor for Ni(II) in Zn (ethylenediamine)<inf>3</inf> (NO <inf>3</inf>)<inf>2</inf>: EPR study

Single crystal EPR of Ni(en)32+ (en = ethylenediamme) doped in Zn(en)3(NO3)2 is reported. Our results based on exact diagonalization procedure indicate that the Ni(en) 32+ units undergo distortion along the threefold axis which coincides with the crystallographic c axis. The zero field tensor is found to be axially symmetric with D being 0.831 ± 0.006 cm-1. The utility of S = 1 ions in obtaining information regarding molecular distortions is also evidenced. © 1987 American Institute of Physics.