@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 {477,
	title = {Side-Band Patterns in Dynamic-Angle-Spinning Nmr},
	journal = {Journal of Magnetic Resonance Series A},
	volume = {102},
	year = {1993},
	note = {J Magn Reson Ser AKz480Times Cited:19Cited References Count:26},
	month = {Apr},
	pages = {195-204},
	keywords = {samples},
	isbn = {1064-1858},
	doi = {Doi 10.1006/Jmra.1993.1091},
	url = {<Go to ISI>://WOS:A1993KZ48000011},
	author = {Grandinetti, P. J. and Lee, Y. K. and Baltisberger, J. H. and Sun, B. Q. and Pines, A.}
}
@article {485,
	title = {Sidebands in dynamic angle spinning (DAS) and double rotation (DOR) NMR},
	journal = {Solid State Nuclear Magnetic Resonance},
	volume = {1},
	year = {1992},
	note = {Solid State Nucl MagV26htTimes Cited:63Cited References Count:29},
	month = {Dec},
	pages = {267-295},
	abstract = {<p>A theory of dynamic angle spinning (DAS) and double rotation (DOR) NMR is described using average Hamiltonian and irreducible tensor methods. Sideband intensities in DAS and DOR spectra are analyzed by both the moment and Bessel function methods, and general formulae are derived. Results show that the DAS moments depend on the relative rotor phase between the first and the second evolution periods, whereas the second and third DOR moments are independent of the relative phase between the inner and outer rotors. Sideband intensities in DAS spectra also depend on the relative rotor phases between evolution at the first and second angles, as well as on the ratio of time spent at each angle. Sideband intensities and phases in DOR spectra are related to the relative rotor phases between the inner and outer rotors, and the sideband pattern is determined by the ratio of the inner and outer rotor spinning speeds. An inversion symmetry of the odd numbered DOR sidebands at the relative rotor phase gamma(r) = 0 degrees. 180 degrees permits the elimination of these sidebands. Finally, numerical simulations are implemented and shown to agree with experimental results. Quadrupolar parameters can therefore be recovered either by calculating the second and third moments or by simulating the sideband intensities and phases.</p>
},
	keywords = {central transition},
	isbn = {0926-2040},
	doi = {Doi 10.1016/0926-2040(92)90047-D},
	url = {<Go to ISI>://WOS:000208537400006},
	author = {Sun, B. Q. and Baltisberger, J. H. and Wu, Y. and Samoson, A. and Pines, A.}
}
