Title of article :
Confirmation and Characterization of the Hypervalent Sb⋯N Bonding Recognized in Triarylstibanes Bearing an Amino Side Chain by X-Ray, NMR and Theoretical Calculations
Author/Authors :
Tatsuhiro Tokunaga، نويسنده , , Hiroko Seki، نويسنده , , Syuji Yasuike، نويسنده , , Masaaki Ikoma، نويسنده , , Jyoji Kurita، نويسنده , , Kentaro Yamaguchi، نويسنده ,
Issue Information :
هفته نامه با شماره پیاپی سال 2000
Abstract :
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.
Keywords :
semi-empirical Hamiltonians , triarylstibane , X-ray crystallography , long-range coupling constant , 15N NMR , 1H–13C HMBC
Journal title :
Tetrahedron
Journal title :
Tetrahedron
