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Preparation and Characterisation of the Cyano-Bridged Transition Metal Complexes Using N,Nʹ-Diethyl Thiourea as a Ligand


Dursun Karaağaç

Abstract

New cyano bridged transition metal complexes, [Cu(detu)4Ni(CN)4]∙2H2O (1) and [Zn(H2O)(detu)Ni(CN)4]∙2H2O (2) (detu = N, N’ diethyl thiourea) have  been synthesised in powder form. Their structures were illuminated by using spectroscopic, thermal and elemental analysis techniques. The nickel atom  exhibits square planar geometry in these complexes by coordinating with the cyano group’s nitrogen atoms. The copper atom of 1 is six coordinated with  two bridging cyano groups and four detu ligands. In contrast, the zinc atom of 2 is six coordinated with four bridging cyano groups, one detu ligand  and one aqua ligand. In addition, the structure of 2 is formed from polymeric layers of |Zn–Ni(CN)4|∞ with the detu and aqua ligands bonded to  the zinc atom. Thermal stabilities and decomposition products of 1 and 2 were examined in the static air atmosphere between 30 and 900 °C.


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eISSN: 1996-840X
print ISSN: 0379-4350