Synthesis of Heteroleptic Zinc Complexes Containing Aminoalkoxide and β‐Diketonate Ligands

Abstract

New heteroleptic complexes of zinc were designed and synthesized using aminoalkoxide and β-diketonate ligands. The complexes, [Zn(dmamp)(tmhd)] 2 (1), [Zn(dmamp)(acac)] 2 (2), [Zn(dmamp)(hfac)] 2 (3), [Zn(dmamb)(tmhd)] 2 (4), [Zn-(dmamb)(acac)] 2 (5), and [Zn(dmamb)(hfac)] 2 (6), were synthesized by controlled acid-base reactions between [EtZn (aminoalkoxide)] 2 and β-diketonate ligands. Single crystal x-ray diffraction showed that complexes 1 À 4 and 6 exist as dimeric molecular structures with the zinc metal centers interconnected by the alkoxy oxygen atom via μ 2 -O bonding and their gemetries exhibit distorted trigonal bipyrimidal. TGA curves of complexes 3 and 6 showed sharp weight losses in a single step with very low residues, which confirmed the excellent vaporization and thermal stability.