Solvent effects on the structure of N-methylpyrrole as studied by NMR  in nematic solvents

Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/2731

Title:	Solvent effects on the structure of N-methylpyrrole as studied by NMR in nematic solvents
Authors:	Suryaprakash, N. Kunwar, A.C. Khetrapal, C.L.
Issue Date:	1984
Publisher:	Elsevier B.V.
Citation:	Chemical Physics Letters, 1984, Vol.107, p333-336
Abstract:	The proton NMR spectra of N-methylpyrrole oriented in the nematic phases of liquid crystals with positive and negative diamagnetic anisotropies and their mixtures are reported. Geometrical parameters derived from the spectra at the critical point in the mixture of liquid crystals with positive and negative diamagnetic anisotropies, where macroscopic diamagnetic anisotropy vanishes, are similar to those obtained in the solvent with negative diamagnetic anisotropy. However, significant distortions in the molecular structure attributed to solvent effects have been observed in liquid crystals with positive diamagnetic anisotropy. The minimum energy conformation has one C---H of the methyl perpendicular to the ring.
Description:	Restricted Access.
URI:	http://hdl.handle.net/2289/2731
ISSN:	0009-2614
Alternative Location:	doi:10.1016/0009-2614(84)85139-8
Copyright:	1984 Elsevier B.V.
Appears in Collections:	Research Papers (SCM)

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