Synthesis and structural characterisation of bis (trimethylsilyl) amidotin (II) triflate [{Sn (NR 2)(μ-η 2-OTf) 2}]∞(R= SiMe 3,− OTf=− OSO 2 CF 3)

PB Hitchcock, MF Lappert, GA Lawless…

Index: Hitchcock, Peter B.; Lappert, Michael F.; Lawless, Gerard A.; De Lima, Geraldo M.; Pierssens, Luc J.-M. Journal of Organometallic Chemistry, 2000 , vol. 601, # 1 p. 142 - 146

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Citation Number: 26

Abstract

The amidotin (II) triflate [{Sn (NR2){μ-η2-OTf)} 2]∞(1) has been prepared in high yield by two methods: from Sn (NR2) 2+ HOTf, or from [Sn (NR2)(μ-Cl)] 2+ 2AgOTf (R= SiMe3,− OTf=− OSO2CF3). The triflate ligand in the crystalline compound 1 binds to two tin atoms in an O, O′-bridging fashion (av. Sn O 2.395 (4) Å) and uses its third oxygen atom to bind more loosely to a tin atom of a neighbouring dinuclear tin unit [av. Sn O ″2.832 (4) Å]. ...