Synthesis and Electronic Structure of Tetrakis(η3-phenylpropargyl)zirconium
摘要:
Tetrakis(eta(3)-phenylpropargyl)zirconium (3) was synthesized from ZrCl4 and (phenylpropargyl)magnesium bromide. The crystallographically determined structure of 3 exhibits D-2d symmetry, consistent with the H-1 and C-13 NMR spectra. The electronic structure of 3 was analyzed using DFT calculations, and a HOMO - LUMO gap of 5.3 eV was calculated. The eta(3) coordination of the propargyl ligands and steric hindrance around the Zr center prevent the coordination of additional ligands, resulting in a homoleptic complex.