Silylmethyl and related complexes II. Preparation,spectra, and thermolysis of the tetraneopentyls of titanium,zirconium, and hafnium |
| |
Authors: | PJ Davidson MF Lappert R Pearce |
| |
Institution: | School of Molecular Sciences, University of Sussex, Brighton BN1 9QJ Great Britain |
| |
Abstract: | The preparation and characterisation of the Group IVA neopentyls (Me3CCH2)4M (M = Ti, Zr, or Hf) is described. Spectroscopic data (IR, Raman, mass, 1H NMR, and PE) are provided; IR and Raman bands have been assigned by comparison with results on Group IVB analogues (M = Ge or Sn). MC4 stretching vibrations fall in the range 540–485 cm?1, and bending modes at 240–283 cm?1. Thermal decomposition gives neopentane as the sole detectable product; qualitatively, stability increases in the order M = Ti < Zr < Hf and for R4M : R = Me ? Me3CCH2 ≈ Me3SiCH2. (Me3CCH2)4Ti is aerobically oxidised in benzene to give (Me3CCH2O)4Ti |
| |
Keywords: | |
本文献已被 ScienceDirect 等数据库收录! |
|