Abstract: | New heterotrimetallic alkoxide {Cd(OPri)3}Sr{Zr2(OPri)9}]2 (1) is obtained quantitatively in an anion-exchange reaction involving well-characterised iodide heterobimetallic alkoxide ICd{Zr2(OPri)9} and the alkali metal reagent KSr(OPri)3. The formation of 1 is accompanied with an exchange of metals (Cd(II) and Sr(II)) between the constituting fragments (‘Cd{Zr2(OPri)9}+’ and ‘Sr(OPri)3 ?’) and the chelating Zr2(OPri)9 ? anion, in 1, coordinates to Sr2+ in contrast to the precursor ICdZr2(OPri)9 where it is bound to Cd2+. The heterotrimetallic nature of 1 is unambiguously established by multinuclear (1H, 13C and 113Cd) NMR spectral data and a single crystal X-ray diffraction analysis. |