Spectroscopic and crystal structure analysis of diamminebis(2,4,6‐triiodophenolato‐O) copper(II)

The crystal structure of [Cu(C 6 H 2 I 3 O) 2 (NH 3 ) 2 ] (CCDC 238896) has been determined by x‐ray diffraction. This monomeric centrosymmetric Cu(II) complex crystallizes in the monoclinic system. The CuO 2 N 2 coordination sphere is trans ‐planar, [Cu–O: 1.943(5) Å and Cu‐N: 1.972(7)] with the fifth and sixth coordination sites occupied by I atoms from the phenoxide ions [Cu–I 1 : 3.3552(8) Å] to form a tetragonally elongated octahedral structure for CuO 2 N 2 I 2 coordination. The complex molecules hold together in a one dimensional chain true [100] direction by intermolecular hydrogen bonds. Differantial scanning calorimeter, FTIR and magnetic susceptibility measurements were also performed in order to identify the title complex. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)