@article {1068,
	title = {NMR as a tool in the investigation of fundamental problems in ordered liquids},
	journal = {Solid State Nuclear Magnetic Resonance},
	volume = {28},
	number = {2-4},
	year = {2005},
	note = {ISI Document Delivery No.: 998NHTimes Cited: 9Cited Reference Count: 49},
	month = {Sep},
	pages = {73-90},
	type = {Article},
	abstract = {An overview is presented of modern NMR techniques and a variety of experimental and theoretical tools employed in the study of solutes dissolved in liquid crystals. The NMR techniques involve multiple quantum and spectral subtraction methods, In addition, various experimental and theoretical tools are discussed, including: the theoretical background of observed order parameters; the use of,magic mixtures{\textquoteright} to separate orientational contributions; the reorientation-vibration interaction; the use of model calculations based on size and shape of the various solutes; and the use of computer simulations. Applications to the benchmark probe molecules hydrogen, methane, ethane, and butane and their isotopomers are treated. (c) 2005 Elsevier Inc. All rights reserved.},
	keywords = {ANISOTROPIC LIQUIDS, butane, ethane, H-2 NMR, HYDROGEN, INTERNAL-ROTATION, liquid crystal, METHANE, MOLECULES, MOLEKULAR-STATISTISCHE THEORIE, MULTIPLE-QUANTUM NMR, NEMATISCHEN KRISTALLINFLUSSIGEN PHASE, NMR, NUCLEAR-MAGNETIC-RESONANCE, order parameter, orientational order, PROTON DIPOLAR COUPLINGS, SMALL CHAIN},
	isbn = {0926-2040},
	url = {<Go to ISI>://000234325100003},
	author = {Burnell, E. E. and de Lange, C. A.}
}
@article {3487,
	title = {CONFORMATIONAL EQUILIBRIUM AND ORIENTATIONAL ORDERING - H-1-NUCLEAR MAGNETIC-RESONANCE OF BUTANE IN A NEMATIC LIQUID-CRYSTAL},
	journal = {Journal of Chemical Physics},
	volume = {103},
	number = {16},
	year = {1995},
	note = {ISI Document Delivery No.: TA441Times Cited: 25Cited Reference Count: 60},
	month = {Oct},
	pages = {6891-6902},
	type = {Article},
	abstract = {In this study we use multiple-quantum H-1-NMR spectroscopy to study butane, the simplest flexible alkane, dissolved in a nematic solvent. An analysis of the highly accurate H-1 dipolar coupling constants gives important information about conformational and orientational behavior, including the hans-gauche energy difference, E(tg), and the conformer probabilities and order parameters. An essential component of the analysis involves the use of mean-field models to describe the orientational ordering of solutes in a nematic solvent. Several models were found to adequately describe the molecular ordering, including the chord model of Photinos et al. [D. J. Photinos, E. T. Samulski, and H. Toriumi, J. Phys. Chem. 94, 4688 (1990)] and recent versions of a model proposed by Burnell and co-workers [D. S. Zimmerman and E. E. Burnell, Mel. Phys. 78, 687 (1993)]. It was found that E(tg) lies in the range 2.1-3.0 kJ/mol, which is significantly below most experimental estimates of the gas-phase value. An attempt to describe more realistically the conformational states by including torsional fluctuations about the rotational isomeric states did not significantly improve the quality of the fits or alter the results. Finally the anisotropic component of the solute-solvent interaction was found to perturb only marginally the conformational probabilities from the isotropic values. (C) 1995 American Institute of Physics.},
	keywords = {ALKYL CHAINS, ANISOTROPIC LIQUIDS, ELECTRON-DIFFRACTION, INTERNAL-ROTATION, MOLECULAR-DYNAMICS, N-BUTANE, NORMAL-HEXANE, POTENTIAL FUNCTION, PROTON DIPOLAR COUPLINGS, STATISTICAL-MECHANICS},
	isbn = {0021-9606},
	url = {<Go to ISI>://A1995TA44100007},
	author = {Polson, J. M. and Burnell, E. E.}
}
