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Correlation between quadrupole splitting (Delta) and the theta angle (C-Sn-C) in five-coordinate diphenyltin(IV) complexes. X-ray crystal structures of [Ph2Sn(hacm)] and [Ph2Sn(hacmm)] containing O,N,S-tridentate N-4-heterocyclic thiosemicarbazones

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de Sousa, Gerimario F. Deflon, Victor M. Manso, Luis Carlos C. Ellena, Javier E. Mascarenhas, Yvonne P. Mahieu, Bernard [UCL]

2-Hydroxyacetophenone N-4- morpholylthiosemicarbazone (H(2)hacm) and 2-hydroxyacetophenone N-4-2,6-dimethylmorpholylthiosemicarbazone (H(2)hacmm) form stable five-coordinate complexes of the compositions [Ph-2(hacm)] and [Ph2Sn(hacmm)], respectively, which were characterized by elemental analysis and spectroscopic (i.r., n.m.r. and Mossbauer) studies. Both complexes and the H(2)hacm ligand were also studied by single crystal X-ray diffraction. The X-ray structures determination of complexes revealed the presence of neutral molecules in which the tin(IV) atoms exhibit distorted trigonal bipyramidal (TBP) geometry, with the O,N,S-tridentate bifunctional behavior of the ligand. The C-Sn-C angles were calculated using a correlation between Mossbauer and X-ray data based on the point-charge model.

Document type Article de périodique (Journal article) – Article de recherche
Access type Accès restreint
Publication date 2007
Language Anglais
Journal information "Transition Metal Chemistry : an international journal" - Vol. 32, no. 5, p. 649-655 (2007)
Peer reviewed yes
Publisher Springer (Dordrecht)
issn 0340-4285
e-issn 1572-901X
Publication status Publié
Affiliation UCL
Links
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Bibliographic reference de Sousa, Gerimario F. ; Deflon, Victor M. ; Manso, Luis Carlos C. ; Ellena, Javier E. ; Mascarenhas, Yvonne P. ; et. al. Correlation between quadrupole splitting (Delta) and the theta angle (C-Sn-C) in five-coordinate diphenyltin(IV) complexes. X-ray crystal structures of [Ph2Sn(hacm)] and [Ph2Sn(hacmm)] containing O,N,S-tridentate N-4-heterocyclic thiosemicarbazones. In: Transition Metal Chemistry : an international journal, Vol. 32, no. 5, p. 649-655 (2007)
Permanent URL http://hdl.handle.net/2078.1/37403