Paalasmaa, Sanna published the artcileSynthesis and characterization of three homoleptic bismuth silanolates: [Bi(OSiR3)3] (R = Me, Et, iPr), Quality Control of 17877-23-5, the publication is Zeitschrift fuer Anorganische und Allgemeine Chemie (2005), 631(12), 2433-2438, database is CAplus.
The bismuth tris(triorganosilanolates) [Bi(OSiR3)3] (1, R = Me; 2, R = Et; 3, R = iPr) were prepared by reaction of R3SiOH with [Bi(OtBu)3]. Compound 1 crystallizes in the triclinic space group P1̅ with Z = 2 and a 10.323(1), b 13.805(1), c 21.096(1) Å and α 91.871(4), β 94.639(3), γ 110.802(3)°. In the solid state compound 1 is a trimer as result of weak intermol. bismuth-oxygen interactions with Bi-O distances in the range 2.686(6)-3.227(3) Å. The coordination at the bismuth atoms Bi(1) and Bi(3) is best described as 3 + 2 coordination whereas Bi(2) shows a 3 + 3 coordination. The intramol. Bi-O distances fall in the range 2.041(3)-2.119(3) Å. Compound 3 crystallizes in the orthorhombic space group Pbcm with Z = 4 and a 7.201(1), b 23.367(5) and c 20.893(1) Å whereas the triethylsilyl-derivative 2 is liquid In contrast to [Bi(OSiMe3)3] (1), compound 3 is monomeric in the solid state, but shows similar intramol. Bi-O distances in the range 1.998(2)-2.065(5) Å. The bismuth silanolates are highly soluble in common organic solvents and strongly moisture sensitive. Compound 1 shows the lowest thermal stability.
Zeitschrift fuer Anorganische und Allgemeine Chemie published new progress about 17877-23-5. 17877-23-5 belongs to alcohols-buliding-blocks, auxiliary class Protection and Derivatization Reagent, name is Triisopropylsilanol, and the molecular formula is C9H22OSi, Quality Control of 17877-23-5.
Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts