Výsledky vyhledávání - "L. B. ALEMANY"

Critical factors in obtaining meaningful fast MAS NMR spectra of non-integral spin quadrupolar nuclei. A review with particular emphasis on27Al MAS NMR of catalysts and minerals

Autor: L. B. Alemany

Publikováno v: Applied Magnetic Resonance. 4:179-201

In the last decade, magic angle spinning (MAS) NMR has become an extremely important method for studying the structure of inorganic solids. Advances in NMR technology have greatly aided in understanding the structure of catalysts, minerals, clays, ce

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ac4b69371b80aafe0e7e9f6b37a0d3a1
https://doi.org/10.1007/bf03162563

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ChemInform Abstract: Critical Factors in Obtaining Meaningful Fast MAS NMR Spectra of Nonintegral Spin Quadrupolar Nuclei. A Review with Particular Emphasis on 27Al MAS NMR of Catalysts and Minerals

Autor: L. B. Alemany

Publikováno v: ChemInform. 25

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9950d8b5bc24bdc43f3c39bb9bbc5ed1
https://doi.org/10.1002/chin.199413332

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On the presence of internal silanol groups in ZSM-5 and the annealing of these sites by steaming

Autor: K. D. Schmitt, L. B. Alemany, G. L. Woolery, Ralph M. Dessau, G. T. Kerr

Publikováno v: Journal of Catalysis. 104:484-489

In a recent interesting letter Dessau et al. presented FTIR and 29Si (CP) MAS NMR results providing further evidence for the presence of internal silanol groups in ZSM5. The decrease in the silanol groups during a steaming procedure accompanied by a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::34bf76e6fc4640030788595c6de7540b
https://doi.org/10.1016/0021-9517(87)90380-0

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Spectroscopic evidence for the presence of internal silanols in highly siliceous ZSM-5

Autor: A.W. Chester, G. L. Woolery, L. B. Alemany, Ralph M. Dessau

Publikováno v: Zeolites. 6:14-16

FT i.r. and MAS n.m.r. evidence is presented which establishes the presence of internal silanols in ZSM-5. The concentration of internal silanols is shown to increase as aluminium content decreases and they are believed to be responsible for the phen

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::65822f54a9a3a4a1fb46b7028b304efb
https://doi.org/10.1016/0144-2449(86)90005-9

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ChemInform Abstract: CROSS POLARIZATION AND MAGIC ANGLE SAMPLE SPINNING NMR SPECTRA OF MODEL ORGANIC COMPOUNDS. 1. HIGHLY PROTONATED MOLECULES

Autor: L. B. ALEMANY, D. M. GRANT, R. J. PUGMIRE, T. D. ALGER, K. W. ZILM

Publikováno v: Chemischer Informationsdienst. 14

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5915887fe99c5a4e784643f59e41d43e
https://doi.org/10.1002/chin.198331063

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ChemInform Abstract: First Observation of 5-Coordinate Aluminum by MAS 27Al NMR in Well-Characterized Solids

Autor: G. W. Kirker, L. B. Alemany

Publikováno v: ChemInform. 18

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c85d7b12a9a7cf9aac4638aaa6ef2dd5
https://doi.org/10.1002/chin.198701020

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ChemInform Abstract: CROSS POLARIZATION AND MAGIC ANGLE SAMPLE SPINNING NMR SPECTRA OF MODEL ORGANIC COMPOUNDS. 3. EFFECT OF THE CARBON-13-PROTON DIPOLAR INTERACTION ON CROSS POLARIZATION AND CARBON-PROTON DEPHASING

Autor: L. B. ALEMANY, D. M. GRANT, T. D. ALGER, R. J. PUGMIRE

Publikováno v: Chemischer Informationsdienst. 15

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ae66632262a2163e9db9fd8ff1429ed5
https://doi.org/10.1002/chin.198406046

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On the proposed clustering of silanol groups in ZSM-5

Autor: Ralph M. Dessau, G. T. Kerr, K. D. Schmitt, L. B. Alemany, G. L. Woolery

Publikováno v: Journal of Catalysis. 109:472-473

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4594bd1e32d5c7288e5be863c6dacb9e
https://doi.org/10.1016/0021-9517(88)90229-1

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Correction. Carbon Distribution in Coals and Coal Macerals by Cross Polarization Magic Angle Spinning Carbon-13 Nuclear Magnetic Resonance Spectrometry

Autor: M A. Wilson, R J. Pugmire, Jirina. Karas, L B. Alemany, W R. Woolfenden, D M. Grant, P H. Given

Publikováno v: Analytical Chemistry. 56:2624-2624

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::14f30d73a46de122cb45a9fdebf6ed49
https://doi.org/10.1021/ac00277a601

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