Journal
CHEMISTRY LETTERS
Volume 33, Issue 5, Pages 530-531Publisher
CHEMICAL SOC JAPAN
DOI: 10.1246/cl.2004.530
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Silylium ions stabilized by Si-X-Si three-center bonds (X = halogen or hydrogen) (2a-d) have been synthesized by the reaction of the corresponding 1-tris(trimethylsilyl)methyl-2,3-bis(trimethylsilyl)-1-silacyclopropene derivatives (1a-d) with triethylsilyl benzenium tetrakis(pentafluorophenyl)borate. Structural and theoretical studies of 2a-d showed Si-X-Si three-center bonding with halonium ion character for 2a-c, and 3c-2e Si-H-Si bonding for 2d.
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