Crystal structure of tris(triphenylsiloxy)borane·triphenylsilanol (1:1) adduct

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Abstract

The title compound crystallizes in the triclinic space group P¯1, with a = 14.458(6), b = 14.630(5), c = 14.721(8) Å, α = 79.75(2), β = 80.11(3), γ = 80.50(3)°, and Z = 2. The crystal structure consists of molecules of (Ph3SiO)3B and Ph3SiOH linked by an weak B … O(silanol) acceptor-donor bond, additionally stabilized by OH(silanol)… O(siloxy) hydrogen bonds. The average B – O, Si– O distances and B – O – Si angle are 1.369, 1.649 Å and 137.2°, respectively.

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