497154-47-9Relevant academic research and scientific papers
Are J(Si-H) NMR coupling constants really a probe for the existence of nonclassical H-Si interactions?
Dubberley, Stuart R.,Ignatov, Stanislav K.,Rees, Nicholas H.,Razuvaev, Alexei G.,Mountford, Philip,Nikonov, Georgii I.
, p. 642 - 643 (2007/10/03)
A series of hydridosilyl complexes of tantalum, Cp(ArN)Ta(PMe3)(H)(SiClnR3-n) (n = 0-3), was prepared and studied by 29Si NMR, X-ray diffraction, and DFT calculations. An unprecedented increase of the J(Si-H) coupling constant between the hydride and silyl ligands from 14 Hz for n = 0 to 50 Hz n = 3 was observed, which however, according to DFT calculations, does not correspond to stronger bonding interaction between silicon and hydride ligands, with the strongest interaction being for n = 1. Copyright
