29Si and 13C Nuclear magnetic resonance studies of organosilicon chemistry
作者： R.K. Harris , B.J. Kimber
DOI: 10.1016/0001-8716(76)80003-X
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摘要: Abstract Silicon-29 spin-lattice relaxation times and 29 Si{ 1 H} nuclear Overhauser enhancements are reported for five trialkylsilanes fo sym -tetramethyldisiloxane, all of which contain a direct SiH bond. Relaxation rate contributions from (Si, H) dipolar interactions fro other mechanisms evaluated discussed in terms molecular mobility. For the smaller molecules it is concluded that spin-rotation contribution to ( T ) -1 dominant but, when alkyl groups bigger than ethyl, more important spin-rotation. chemical shifts coupling constants also presented briefly discussed.
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