Study of sequence of N and O atoms in dimethylsilazaoxanes by means of1H,13C, and29Si NMR
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A study has been made of the PMR spectra of 10- and 12-membered dimethylcyclosilazaoxanes. The spectra of the methyl-group protons are not characteristic.
From the PMR spectra of the NH protons, the sequence of five atoms with a central N atom can be identified.
From the13C NMR spectra, sequences of seven atoms with a central Si atom can be differentiated.
In the29Si NMR spectra, the influence of the immediate environment is the most clearcut; the influence of the more distant atoms is complex in nature.
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