Mixed-ligand approach to design heterometallic single-source precursors with discrete molecular structures, while maintaining the proper metal:metal ratio for the target complex will be presented. The applicability of the above approach was demonstrated by the synthesis of single-source precursors for multiferroic oxide materials as well as for prospective cathode materials of rechargeable batteries. Combination of two different diketonate ligands with electron-withdrawing and electron-donating substituent brings about changes in the connectivity pattern within heterometallic assembly and yields the precursor with molecular structure, even though both homoleptic counterparts were found to be coordination polymers. In another example, the heteroleptic complex with a proper metal:metal ratio is formed in the heterometallic system, for which homoleptic complexes either do not exist or feature a different M:M� ratio. Mixed-ligand approach developed in this work opens broad opportunities to design new heterometallic precursors when corresponding homoleptic complexes do not afford a proper metal ratio and/or discrete molecular structure.

Mixed-ligand approach to design of heterometallic precursors

248th National Meeting (2014)

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