Solute induced liquid crystalline behaviour of a quaternary ammonium salt and its application to structure determination
Data(s) |
01/09/1998
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Resumo |
A new liquid crystalline phase, induced by the addition of small amounts of a non-mesogenic solute (such as dimethyl sulphoxide or methyl iodide) to a quaternary ammonium salt, N-methyl-N,N,N-trioctadecylammonium iodide (MTAI), has been detected by NMR and optical microscopic studies. In some cases, there is a coexistence of nematic and smectic phases. Information on the ordering of the phases in the magnetic field of the spectrometer has been derived from NMR spectra of a dissolved molecule, C-13-enriched methyl iodide. The low order parameter of the pure thermotropic nematic phase of the salt provides first-order spectra of the dissolved oriented molecules. Analyses of spectra of cis,cis-mucononitrile exemplifies the utility of the MTAI nematic phase in the determination of structural parameters of the solute. |
Formato |
application/pdf |
Identificador |
http://eprints.iisc.ernet.in/19239/1/Solute_induced_liquid.pdf Liangde, LU and Nagana Gowda, GA and Suryaprakash, N and Khetrapal, CL and Weiss, Richard G (1998) Solute induced liquid crystalline behaviour of a quaternary ammonium salt and its application to structure determination. In: Liquid Crystals, 25 (03). pp. 295-300. |
Publicador |
Taylor and Francis Group |
Relação |
http://www.informaworld.com/smpp/content~content=a713934799&db=all http://eprints.iisc.ernet.in/19239/ |
Palavras-Chave | #Sophisticated Instruments Facility |
Tipo |
Journal Article PeerReviewed |