Confirmation and Characterization of the Hypervalent Sb⋯N Bonding Recognized in Triarylstibanes Bearing an Amino Side Chain by X-Ray, NMR and Theoretical Calculations

Autor:	Jyoji Kurita, Tatsuhiro Tokunaga, Masaaki Ikoma, Syuji Yasuike, Kentaro Yamaguchi, Hiroko Seki
Rok vydání:	2000
Předmět:	Chemical shift Organic Chemistry Hypervalent molecule Charge density chemistry.chemical_element Biochemistry Crystallography Antimony chemistry Drug Discovery X-ray crystallography Atom Side chain Molecular orbital
Zdroj:	Tetrahedron. 56:8833-8839
ISSN:	0040-4020
DOI:	10.1016/s0040-4020(00)00813-9
Popis:	Hypervalent Sb⋯N bonding observed in triarylstibanes was investigated by single-crystal X-ray diffraction study, comparison of the 15N chemical shifts, and HMBC NMR spectroscopic detection of the 1H–13C long-range coupling. This bonding is strongly dependent on the Lewis acidity of the central antimony atom. A good correlation was observed between 15N chemical shift and the charge distribution obtained from semi-empirical molecular orbital calculations.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e40fc3b96fbb5506a5b37e0c841d6993 https://doi.org/10.1016/s0040-4020(00)00813-9 Zobrazit plný text záznamu Full Text from ScienceDirect