NMR Spectra of Oriented 13C-Acetylene. Redetermination of the Shrinkage Effects and Analysis of the Apparent Temperature Dependence of the Molecular Geometry


The NMR spectra of the 13C isomers of acetylene oriented in two nematic liquid crystals (EBBA and Phase IV) have been analyzed in order to determine the distance ratios and the shrinkage effects. In the case of the EBBA samples, the results agree with the IR data except for a small discrepancy in the distance ratios. In the Phase IV samples, we have found… (More)


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