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

New heteroleptic complexes of zinc were designed and synthesized using aminoalkoxide and beta-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 beta-diketonate ligands. Single crystal x-ray diffraction showed that complexes 1-4 and 6 exist as dimeric molecular structures with the zinc metal centers interconnected by the alkoxy oxygen atom via mu(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.

Automated summary

New heteroleptic zinc complexes designed and synthesized exhibit excellent vaporization and thermal stability, with some complexes existing as dimeric molecular structures.