Structural study of C,N‐chelated monoorganotin(IV) halides

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Abstract

Abstract Three monoorganotin(IV) compounds of general formula L CN SnX 3 , where L CN is a 2‐(dimethylaminomethyl)phenyl‐ group and X = Cl ( 1 ), Br ( 2 ) and I ( 3 ), were prepared and characterized using XRD and NMR techniques. Compound 1 reacts with moisture producing [(L CN ) 2 HSnCl 2 ] + [L CN SnCl 4 ] − . Compound 3 decomposes to (L CN ) 2 SnI 2 , SnI 2 and I 2 when heated. Compound 2 was reacted with NH 4 F yielding an equilibrium of fluorine‐containing species. The major products were [L CN SnF 5 ] 2− and [(L CN SnF 3 ) 2 (µ 2 ‐F) 2 ] 2− (4a). When compound 2 was reacted with another fluorinating agent, L CN ( n ‐Bu) 2 SnF, an oligomeric product, [L CN SnF 2 (µ 2 ‐F) 2 ] n , was observed. Further addition of NH 4 F led to subsequent formation of 4a. The structure of fluorinated products was investigated by 1 H, 19 F and 119 Sn NMR spectroscopy. Copyright © 2006 John Wiley & Sons, Ltd.

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