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Chemical shift anisotropy and indirect coupling in SnO 2 and SnO
Author(s) -
Cossement Christophe,
Darville Jacques,
Gilles JeanMarie,
Nagy Janos B.,
Fernandez Christian,
Amoureux JeanPaul
Publication year - 1992
Publication title -
magnetic resonance in chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.483
H-Index - 72
eISSN - 1097-458X
pISSN - 0749-1581
DOI - 10.1002/mrc.1260300313
Subject(s) - anisotropy , valence (chemistry) , atomic orbital , tin , asymmetry , chemical shift , spectral line , chemistry , atom (system on chip) , valence band , valence electron , materials science , molecular physics , condensed matter physics , atomic physics , electron , band gap , physics , optics , organic chemistry , quantum mechanics , computer science , embedded system , astronomy
The magic angle solid‐state NMR spectra of SnO 2 and SnO were recorded and analysed. The chemical shift tensor anisotropy is much smaller for SnO 2 (136 ppm) than for SnO (975 ppm). Simple calculations suggest that the latter is mainly due to the asymmetry in the valence electron cloud of the tin atom in SnO. An SnSn indirect coupling of 8300 Hz was found in SnO, indicating the possibility of Sn 5s orbitals at the top of the valence band of SnO.