Journal
ORGANOMETALLICS
Volume 19, Issue 22, Pages 4437-4444Publisher
AMER CHEMICAL SOC
DOI: 10.1021/om0005497
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Reaction of SiXnCl4-n (X = H, Me) with Li(C(SiMe3)(2)( 2-C5H4N)) or Li(C(SiMe3)(2)(6-Me-2-C5H3N)) yields hypervalent five-coordinate compounds, established in the solid state for SiRHCl2 (5 and 7), which show strong intramolecular Si-N interactions in the four-membered chelate ring (NSiC2) that persist in solution (Si-N = 2.066(9) and 2.072(4) Angstrom, X = H). Complexes based on HCPh2(2-C5H4N) form four-coordinate species, whereas complexes based on HCPh(SiMe3)(2-C5H4N) afford either four- or five-coordinate complexes; the rac isomers of Si(CH(SiMe3)(2-C5H4N))(2)MenCl2-n (26 and 27), formed stereospecifically, are four-coordinate.
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