Arumugam, S and Kunwar, AC and Khetrapal, CL (1984) Structure of dibenzofuran and dibenzothiophene: Proton NMR study in nematic phases. In: Organic Magnetic Resonance, 22 (9). pp. 547-549.
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Proton NMR spectra of dibenzofuran and dibenzothiophene were investigated in the nematic phase of liquid crystals. Dipolar couplings obtained from the spectral analysis were used to derive the inter-proton distance ratios. Deviations from planarity were observed in both molecules, and an attempt was made to determine the extent of non-planarity. Differences in the relative inter-proton distances in the two molecules are explained in terms of the bond polarization hypothesis and the van der Waals and the covalent radii of the oxygen and sulphur heteroatoms.
|Item Type:||Journal Article|
|Additional Information:||Copyright of this article belongs to John Wiley and Sons.|
|Keywords:||dibenzofuran;proton nmr;dibenzothiophene;spectral analysis;bond polarization hypothesis|
|Department/Centre:||Division of Chemical Sciences > Organic Chemistry|
|Date Deposited:||18 Aug 2005|
|Last Modified:||08 Feb 2012 05:14|
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