A multiple-quantum H-1 NMR study of conformational ...
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| Title | A multiple-quantum H-1 NMR study of conformational biasing of biphenyl in a nematic liquid crystal |
| Author(s) | T. Chandrakumar, J. Polson, E. Burnell |
| Journal | Journal of Magnetic Resonance Series A |
| Date | 1996 |
| Volume | 118 |
| Issue | 2 |
| Start page | 264 |
| End page | 271 |
| Abstract | Multiple-quantum H-1 NMR spectroscopy was used to simplify the analysis of the complicated one-quantum spectrum of the 10-spin molecule biphenyl dissolved in a nematic solvent. An eight-quantum spectrum was analyzed to obtain estimates of all dipolar coupling constants and chemical shifts, which were used as a starting point to solve the one-quantum spectrum, The dipolar couplings from the one-quantum spectrum were used, in combination with those determined in a previous study using different liquid-crystal solvents, to obtain vibrationally corrected geometrical parameters and orientational order parameters, The effective internal rotational potential was found to be shifted slightly toward a more planar configuration relative to the gas-phase potential, with an equilibrium dihedral angle of 37 degrees. (C) 1996 Academic Press, Inc. |
| ISSN | 1064-1858 |
Using APA 6th Edition citation style.
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