@article {472,
	title = {An Approximate Method of Side-Band Intensity Calculation in Magic-Angle-Spinning Nmr},
	journal = {Applied Magnetic Resonance},
	volume = {5},
	year = {1993},
	note = {Appl Magn ResonLv192Times Cited:2Cited References Count:19},
	pages = {43-61},
	abstract = {<p>A theory of sideband intensity is derived by expanding into a Taylor series the free induction decay observed under magic angle spinning (MAS). According to this procedure, the free induction decay signal is completely represented by a basis of irreducible tensors from rank zero to rank infinity. After averaging over all orientations, only the zero-order irreducible tensors contribute to the sideband intensities. Symmetry properties of the sidebands can be seen clearly in this expansion, and an approximate formula up to ninth order is obtained by truncating the series. Sideband intensities can be calculated rapidly with this formula. The results agree satisfactorily with the exact sideband intensities obtained by numerical simulation if the ratio of the anisotropy to the spinning speed, omega0delta/omega(r), is smaller than 3. The relationship of the sideband intensities with the moments of a MAS spectrum shows that the proposed method is an alternative to moment analysis when the spinning speed is not very slow. Anisotropic information about the chemical shift anisotropy interaction therefore can be extracted efficiently from experimental spectra by this approximate method.</p>
},
	keywords = {nuclei},
	isbn = {0937-9347},
	url = {<Go to ISI>://WOS:A1993LV19200006},
	author = {Sun, B. Q. and Pines, A.}
}
@article {478,
	title = {Pure-Absorption-Mode Lineshapes and Sensitivity in 2-Dimensional Dynamic-Angle Spinning Nmr},
	journal = {Journal of Magnetic Resonance Series A},
	volume = {103},
	year = {1993},
	note = {J Magn Reson Ser ALj625Times Cited:98Cited References Count:20},
	month = {Jun 1},
	pages = {72-81},
	keywords = {nuclei},
	isbn = {1064-1858},
	doi = {Doi 10.1006/Jmra.1993.1132},
	url = {<Go to ISI>://WOS:A1993LJ62500010},
	author = {Grandinetti, P. J. and Baltisberger, J. H. and Llor, A. and Lee, Y. K. and Werner, U. and Eastman, M. A. and Pines, A.}
}
@article {505,
	title = {Pure-Absorption-Phase Dynamic-Angle Spinning},
	journal = {Journal of Magnetic Resonance},
	volume = {92},
	year = {1991},
	note = {J Magn ResonFj100Times Cited:30Cited References Count:15},
	month = {May},
	pages = {620-627},
	keywords = {nuclei},
	isbn = {0022-2364},
	doi = {Doi 10.1016/0022-2364(91)90359-2},
	url = {<Go to ISI>://WOS:A1991FJ10000018},
	author = {Mueller, K. T. and Wooten, E. W. and Pines, A.}
}
@article {508,
	title = {Study of the Aluminophosphates Alpo4-21 and Alpo4-25 by Al-27 Double-Rotation Nmr},
	journal = {Journal of the American Chemical Society},
	volume = {113},
	year = {1991},
	note = {J Am Chem SocFn005Times Cited:53Cited References Count:16},
	month = {May 22},
	pages = {4097-4101},
	abstract = {<p>Aluminum-27 double-rotation NMR in a magnetic field of 11.7 T distinguishes the extremely distorted five-coordinated aluminum sites in the molecular sieve precursor ALPO4(-21). Upon calcination, ALPO4(-21) transforms to ALPO4(-25), which has two tetrahedral aluminum sites with similar isotropic chemical shifts that cannot be resolved in an 11.7 T field. The two tetrahedral environments, however, have a different quadrupole coupling constants and are distinguished by double rotation at 4.2 T field. The quadrupole coupling constants obtained for these sites indicates that the tetrahedral aluminum environments are less distorted in the hydrated material.</p>
},
	keywords = {nuclei},
	isbn = {0002-7863},
	doi = {Doi 10.1021/Ja00011a007},
	url = {<Go to ISI>://WOS:A1991FN00500007},
	author = {Jelinek, R. and Chmelka, B. F. and Wu, Y. and Grandinetti, P. J. and Pines, A. and Barrie, P. J. and Klinowski, J.}
}
