Time-resolved spectra, silicon

Silicone oil OV 61, a linear polymer, contains exclusively D- and Dph2-groups with a resolved pentade pattern in the 29Si NMR spectrum [3]. The relaxation times were found to be between 17 and 52 s for D, and 60 to 93 s for Dph2. NOE values lie between -1.24 and -1.60, showing no structural relevance. The silicon molecules seem to be convoluted with no differences in segmental motion. 

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