Symmetrical distortion of the methyl group of methyltrichlorotitanium: gas phase structure and H,H coupling constant
作者:Adam Berry、Zain Dawoodi、Andrew E. Derome、J. Mark Dickinson、Anthony J. Downs、Jennifer C. Green、Malcolm L. H. Green、Philip M. Hare、Martin P. Payne、David W. H. Rankin、Heather E. Robertson
DOI:10.1039/c39860000520
日期:——
Electron-diffraction studies show gaseous TiMeCl3 to have a symmetrically ‘flattened’(C3v) methylgroup with an H–C–Ti angle of 101.0 ± 2.2°, which is reflected in solution by a most unusual large positive H,Hcouplingconstant of + 11.3 Hz; these data are interpreted in terms of a π-donor interaction of methyl C–H bonds with low-lying metal d-orbitals.