@article {452,
	title = {Solid-State O-17 Magic-Angle and Dynamic-Angle Spinning Nmr-Study of the Sio2 Polymorph Coesite},
	journal = {Journal of Physical Chemistry},
	volume = {99},
	year = {1995},
	note = {J Phys Chem-UsRn706Times Cited:95Cited References Count:41},
	month = {Aug 10},
	pages = {12341-12348},
	abstract = {<p>Five distinctly resolved O-17 solid-state NMR resonances in room temperature coesite, an SiO2 polymorph, have been observed and assigned using dynamic-angle spinning (DAS) at 11.7 T along with magic-angle spinning (MAS) spectra at 9.4 and 11.7 T. The O-17 quadrupolar parameters for each of the five oxygen environments in coesite are correlated with the Si-O-Si bridging bond angles determined by diffraction experiments. The sign of e(2)qQ/h along with the orientation of the electric field gradient for oxygen in the Si-O-Si linkage were determined from a Townes-Dailey analysis of the data.</p>
},
	keywords = {oxygen},
	isbn = {0022-3654},
	doi = {Doi 10.1021/J100032a045},
	url = {<Go to ISI>://WOS:A1995RN70600045},
	author = {Grandinetti, P. J. and Baltisberger, J. H. and Farnan, I. and Stebbins, J. F. and Werner, U. and Pines, A.}
}
@article {498,
	title = {Quantification of the Disorder in Network-Modified Silicate-Glasses},
	journal = {Nature},
	volume = {358},
	year = {1992},
	note = {NatureJb341Times Cited:169Cited References Count:32},
	month = {Jul 2},
	pages = {31-35},
	abstract = {<p>Local order in silicate glasses has been observed by many experimental techniques to be similar to that in crystalline materials. Details of the intermediate-range order are more elusive, but essential for understanding the lack of long-range symmetry in glasses and the effect of composition on glass structure. Two-dimensional O-17 dynamic-angle-spinning nuclear magnetic resonance experiments reveal intermediate-range order in the distribution of inter-tetrahedral (Si-O-Si) bond angles and a high degree of order in the disposition of oxygen atoms around the network-modifying cations.</p>
},
	keywords = {time},
	isbn = {0028-0836},
	doi = {Doi 10.1038/358031a0},
	url = {<Go to ISI>://WOS:A1992JB34100043},
	author = {Farnan, I. and Grandinetti, P. J. and Baltisberger, J. H. and Stebbins, J. F. and Werner, U. and Eastman, M. A. and Pines, A.}
}
