Heteronuclear thiocyanate-bridged compounds of the type (NiL)3[M(NCS)6]2 (M=Fe(III), Cr(III); L=5,6,12,13-Me4-[14]-4,11-dieneN4)

The complexes of the general formula (NiL)3[M(NCS)6]2 (where L=5,6,12,13-Me4-[14]-4,11-dieneN4, M=Fe(III) (1), Cr(III) (2)) were obtained and their magnetic and spectroscopic properties characterized. For the compound (NiL)3[Fe(NCS)6]2, the crystal structure was determined and X-ray analysis showed that it forms a linear pentanuclear compound NiFeNiFeNi in which the peripheral nickel(II) ions are five-co-ordinate. Magnetic studies for both compounds showed the existence of structural differences between them.