Intramolecular O-Sn coordination in (Z)-1-(triphenylstannyl)-3-phenyl-1-buten-3-ol: Evidence by X-ray diffracation analysis and bromination

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FU
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关键词
Sythesis; X-ray diffraction analysis; (Z)-l-(triphenylstannyl)-3-phenyl-l-buten-3-ol;
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O657.3 [光化学分析法(光谱分析法)];
学科分类号
070302 ; 081704 ;
摘要
The synthesis and properties of (Z)-1-(triphenylstannyl)-3-phenyl-1-buten-3-ol (1) are described. Compound 1 crystallizes from alcohol in the monoclinic space group P21/c with unit-cell dimensions a=9.296(2), 6=14.081(3), c=18.390(5) A,B=97.70(2), V=2385.5(1) A3, Z=4, F(000)=1008, Dc=1.38 g.cm-3,u=10.88 cm-1, final R=0.0359 for 3079 observed reflection [I > 3(I)]. The X-ray diffraction analysis of this compound shows the presence of an intramolecular coordination to the tin atom giving rise to a five-membered ring in which the metal exhibits a distroted trignoal bipyramidal geometry; as a consequence, a phenyl group, probably the apical one, is cleaved more easily by bromine than the vinyl substituent.
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页码:365 / 371
页数:7
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