@article {432,
	title = {Measurement of carbon-proton dipolar couplings in liquid crystals by local dipolar field NMR spectroscopy},
	journal = {Journal of Physical Chemistry},
	volume = {100},
	year = {1996},
	note = {J Phys Chem-UsVv354Times Cited:54Cited References Count:31},
	month = {Nov 28},
	pages = {18696-18701},
	abstract = {<p>The performance of several different two-dimensional NMR methods for the measurement of carbon-proton dipolar couplings in liquid crystalline phases is analyzed. Proton-detected local field spectroscopy allows the measurements of short range C-H couplings, which correspond to directly bond pairs, by direct inspection of the spectra. Off magic angle (OMAS) spinning techniques can be applied to anisotropic phases that can be oriented mechanically at an angle to the magnetic field, such as nematic phases. The consequent scaling of the chemical shift anisotropy and dipolar couplings can be used to resolve otherwise overlapping resonances, Moreover, an estimate of the accuracy of the technique can be achieved by performing a series of OMAS experiments with different sample orientations.</p>
},
	keywords = {solids},
	isbn = {0022-3654},
	doi = {Doi 10.1021/Jp962023z},
	url = {<Go to ISI>://WOS:A1996VV35400008},
	author = {Caldarelli, S. and Hong, M. and Emsley, L. and Pines, A.}
}
@article {458,
	title = {Nmr Measurement of Resolved Heteronuclear Dipole Couplings in Liquid-Crystals and Lipids},
	journal = {Journal of Physical Chemistry},
	volume = {98},
	year = {1994},
	note = {J Phys Chem-UsNw531Times Cited:68Cited References Count:25},
	month = {Jul 7},
	pages = {6668-6670},
	abstract = {<p>Simplified nuclear magnetic resonance (NMR) spectra of heteronuclear dipolar couplings for molecules in an anisotropic environment, such as liquid crystals and lipids, are obtained by proton-detected local-field spectroscopy. The distance-dependent dipolar interactions between spins of magnetically active nuclei can be determined directly from the spectrum because many-body effects that complicate conventional dipolar NMR spectra are avoided by selectively probing local fields produced by rare spins at the location of abundant spins. We employ the technique to resolve the carbon-proton dipolar couplings of benzene dissolved in a nematic liquid crystal and to measure phosphorus-proton couplings in lecithin in the L(alpha) phase to obtain constraints on the phosphocholine headgroup structure.</p>
},
	keywords = {solids},
	isbn = {0022-3654},
	doi = {Doi 10.1021/J100078a002},
	url = {<Go to ISI>://WOS:A1994NW53100002},
	author = {Schmidt-Rohr, K. and Nanz, D. and Emsley, L. and Pines, A.}
}
