Abstract
Abstract New heterobimetallic chelates [CuLMCl4] [M = Si, Ge, Sn, Ti and Zr; L = NN′-ethylenebis(salicylideneiminate)] prepared by treating CuL with Group IV metal tetrachlorides in a 1:1 ratio were characterized by e. s. r., electronic and i. r. spectroscopy, elemental analysis and conductivity measurements. The e. s. r. spectral g-values indicate square planar environments for copper(II) in both CuL and [CuLMCl4]. Conductivity measurements show that the heterobimetallic chelates are non-electrolytes. The phenolic C-O stretching frequency shifts to higher frequencies in the i. r. spectra of auducts suggesting that a coordinate bond is formed between oxygen of CuL and the Group IV metal.
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