The first structurally authenticated compound containing a bond between divalent tin and tetravalent tin

被引：40

作者：

Cardin, CJ

Cardin, DJ

Constantine, SP

Todd, AK

Teat, SJ

Coles, S

机构：

[1] Univ Reading, Dept Chem, Reading RG6 6AD, Berks, England

[2] SERC, Daresbury Lab, CLRC, Warrington WA4 4AD, Cheshire, England

[3] Newcastle Univ, Dept Chem, Newcastle Upon Tyne NE11 7RU, Tyne & Wear, England

[4] UCL Royal Inst Great Britain, London W1X 4BS, England

来源：

ORGANOMETALLICS | 1998年 / 17卷 / 11期

关键词：

D O I：

10.1021/om980027f

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The reaction of 1 equiv of [Li(thf)(3) . Sn-(SiMe(3))(3)] (1) with [Sn(2-{(Me(3)Si)(2)C}-C(5)H(4)N)Cl] in Et(2)O at ambient temperature affords the corresponding divalent Sn-tetravaLent Sn compound, [Sn(2-{(Me(3)Si)(2)C}-C(5)H(4)N){Sn(SiMe(3))(3)}] (2) in high yield. A single-crystal X-ray diffraction study reveals 2 to be monomeric and the divalent Sn-tetravalent Sn bond to be 2.8689(5) Angstrom; this is the first measurement of such a bond. The (119)Sn-((1)H) NMR spectrum exhibits two singlet resonances at delta 897 and -502, each with well-resolved, isotopically, shifted, (119)Sn and (117)Sn satellites (ca. 6700 and ca. 6400 Hz, respectively); this is the first measurement of (1)J coupling between Sit atoms of different valence.

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页码：2144 / 2146

页数：3

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