Reactions of silicon halides with N-heterocyclic carbene produce neutral penta- or hexacoordinate complexes IPr·SiF 4 ( 1 ), IPr·SiF 4 ·IPr ( 2 ), and IPr·SiBr 4 ( 3 ) (IPr =:C[N(2,6- i Pr 2 -C 6 H 3 )CH] 2 ). Molecular structures of 1 − 3 were determined by X-ray diffraction studies and exhibit interesting structural features.
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Ghadwal et al. (2009) studied this question.
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