@article {993,
	title = {Recent developments in solid-state magic-angle spinning, nuclear magnetic resonance of fully and significantly isotopically labelled peptides and proteins},
	journal = {Philosophical Transactions of the Royal Society of London Series B-Biological Sciences},
	volume = {359},
	number = {1446},
	year = {2004},
	note = {ISI Document Delivery No.: 834XSTimes Cited: 7Cited Reference Count: 125},
	month = {Jun},
	pages = {997-1008},
	type = {Review},
	abstract = {In recent years, a large number of solid-state nuclear magnetic resonance (NMR) techniques have been developed and applied to the study of fully or significantly isotopically labelled (C-13, N-15 or C-13/N-15) biomolecules. In the past few years, the first structures of C-13/N-15-labelled peptides, Gly-Ile and Met-Leu-Phe, and a protein, Src-homology 3 domain, were solved using magic-angle spinning NMR, without recourse to any structural information obtained from other methods. This progress has been made possible by the development of NMR experiments to assign solid-state spectra and experiments to extract distance and orientational information. Another key aspect to the success of solid-state NMR is the advances made in sample preparation. These improvements will be reviewed in this contribution. Future prospects for the application of solid-state NMR to interesting biological questions will also briefly be discussed.},
	keywords = {assignment strategies, CHEMICAL-SHIFT ANISOTROPIES, CROSS-POLARIZATION, DIPOLAR-CORRELATION SPECTROSCOPY, DISTANCE, HIGH-FIELD, magic-angle spinning, MAS NMR, MEASUREMENTS, MEMBRANE-PROTEIN, NMR-SPECTROSCOPY, peptide and protein labelling, RESOLUTION, ROTATING SOLIDS, SH3 DOMAIN, SOLID-STATE NMR, SPECTRIN, structural parameters},
	isbn = {0962-8436},
	url = {<Go to ISI>://000222444800010},
	author = {Straus, S. K.}
}
@article {5065,
	title = {Characterization of synthetic Cs-Li cancrinite grown in a butanediol-water system: An NMR spectroscopic and Rietveld refinement study},
	journal = {American Mineralogist},
	volume = {86},
	number = {7-8},
	year = {2001},
	note = {ISI Document Delivery No.: 451PGTimes Cited: 8Cited Reference Count: 22},
	month = {Jul-Aug},
	pages = {881-888},
	type = {Article},
	abstract = {A Cs-Li-analogue of cancrinite has been synthesized from tetraethoxysilane and Al sec-butoxide in a mixture of 1,3-butanediol and water. Ca and Li were introduced as hydroxides. Synthesis was done at autogeneous pressure and T = 473 K for 100 h. The synthesis product was characterized by powder X-ray diffraction, IR-spectroscopy, thermogravimetry, H-1, Li-6, Li-7,Cs-133, Al-27, Si-29 MAS, and {H-1} C-13 CPMAS NMR and Rietveld structure refinement. Si-29 MAS NMR and Al-27 MAS NMR spectroscopy show a framework with strong alternating order of the SiO4 and AlO4 tetrahedra and an Si/Al ratio of one. Li-6 MAS NMR suggests the existence of two different signals that cannot be resolved in the Li-7 MAS NMR spectrum. Cs-133 MAS NMR shows only a single resonance. The thermogravimetric analysis reveals a continuous weight loss in several steps, indicating the evaporation of water of hydration. IR spectroscopy shows evidence for hydroxyl anions and water included in the cancrinite framework. The Rietveld structure refinement is consistent with a completely ordered alumosilicate framework with an Si/Al ratio of one and the presence of both molecular water and hydroxyl groups in the hexagonal channel, a result different from the previously published structure. Cs is exclusively located in the epsilon -cages; Li ions are located in the channels and are coordinated by water molecules.},
	keywords = {BOND-VALENCE PARAMETERS, CRYSTAL-STRUCTURE, MAS NMR, minerals},
	isbn = {0003-004X},
	url = {<Go to ISI>://000169810000011},
	author = {Fechtelkord, M. and Posnatzki, B. and Buhl, J. C. and Fyfe, C. A. and Groat, L. A. and Raudsepp, M.}
}
@article {5081,
	title = {Solid-state NMR characterization of the mineral searlesite and its detection in complex synthesis mixtures},
	journal = {Inorganic Chemistry},
	volume = {40},
	number = {23},
	year = {2001},
	note = {ISI Document Delivery No.: 488JRTimes Cited: 5Cited Reference Count: 34},
	month = {Nov},
	pages = {5906-5912},
	type = {Article},
	abstract = {The mineral searlesite (NaBSi2O5(OH)(2)) was synthesized and characterized by H-1, B-11, Na-23, and Si-29 magic-angle spinning (MAS) NMR spectroscopy. From these spectra, the B-11 and Na-23 quadrupole coupling parameters and isotropic chemical shifts and the Si-29 chemical shift anisotropies have been precisely determined. These parameters are all consistent with the local environments obtained from the crystal structure for searlesite from X-ray diffraction, and they demonstrate that the synthetic sample has a high degree of both short- and long-range order. Furthermore, these anisotropic parameters are found to provide a unique fingerprinting of searlesite in complex mixtures where the presence of this mineral is not anticipated. This is demonstrated for product mixtures formed in attempts to incorporate boron in the structures of the layer silicates magadiite and kenyaite. These. mixtures have been investigated by B-11, Na-23, and Si-29 MAS NMR which clearly reveal that the samples are mixtures of searlesite and magadiite/kenyaite and that searlesite production consumes all of the boron in these synthesis mixtures. However, the Si-29 MAS NMR spectra of these mixtures indicate that the presence of boron in the reaction mixtures nevertheless has an important influence on the quality of the magadiite and kenyaite layer silicates produced.},
	keywords = {BORATE, BORON, ISOMORPHOUS SUBSTITUTION, LAYERED SILICATES, MAGADIITE, MAS NMR, QUADRUPOLAR NUCLEI, SATELLITE, SILICON, TRANSITIONS},
	isbn = {0020-1669},
	url = {<Go to ISI>://000171932500026},
	author = {Fyfe, C. A. and Skibsted, J. and Schwieger, W.}
}
