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|a DE-627
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|e rakwb
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|a eng
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|a Bakhmutov, Vladimir I
|e verfasserin
|4 aut
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|a Solid-state NMR spectra of paramagnetic silica-based materials
|b observation of 29Si and 27Al nuclei in the first coordination spheres of manganese ions
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|c 2006
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|a Text
|b txt
|2 rdacontent
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|a ohne Hilfsmittel zu benutzen
|b n
|2 rdamedia
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|a Band
|b nc
|2 rdacarrier
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|a Date Completed 23.08.2007
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|a Date Revised 28.08.2006
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|a published: Print
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|a Citation Status PubMed-not-MEDLINE
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|a Copyright (c) 2006 John Wiley & Sons, Ltd.
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|a Some silica-based solids, prepared by the sol/gel method in the presence of high Mn2+ concentrations, have been characterized by the 29Si, 27Al MAS NMR spectra and 29Si T1 measurements. The single-pulse 29Si and 27Al MAS NMR spectra have shown broad spinning sideband patterns that are interpreted in terms of anisotropic bulky magnetic susceptibility (BMS) and dipole-field effects. In the absence of paramagnetic isotropic shifts, the 29Si and 27Al nuclei observed in the single-pulse NMR spectra have been assigned to nuclei remote from paramagnetic centers. It has been demonstrated that the 29Si and 27Al nuclei, which are in the vicinity of the manganese ions, can be detected by the Hahn-echo MAS NMR experiments at different carrier frequencies
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|a Journal Article
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|a Shpeizer, Boris G
|e verfasserin
|4 aut
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|a Clearfield, Abraham
|e verfasserin
|4 aut
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|i Enthalten in
|t Magnetic resonance in chemistry : MRC
|d 1985
|g 44(2006), 9 vom: 01. Sept., Seite 861-7
|w (DE-627)NLM098179667
|x 1097-458X
|7 nnas
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| 773 |
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|g volume:44
|g year:2006
|g number:9
|g day:01
|g month:09
|g pages:861-7
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|d 44
|j 2006
|e 9
|b 01
|c 09
|h 861-7
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