Tris[2,2,6,6-tetra­methyl-8-(tri­methyl­sil­yl)benzo[1,2-d;4,5-d′]bis­(1,3-di­thiol)-4-yl]methanol diethyl ether monosolvate

摘要

The title compound, a tri­aryl­methanol, C46H64OS12Si3 1, was synthesized via li­thia­tion of tris-2,2,6,6-tetra­methyl­benzo[1,2-d;4,5-d′]bis­[1,3]di­thiol-4-yl-methanol, 2, and electrophilic quenching with tri­methyl­silyl chloride. The current crystal structure reveals information about the reactivity of this compound and compares well with the structure reported for the unsubstituted parent compound 2 [Driesschaert et al. (2012). Eur. J. Org. Chem. 33, 6517–6525]. The title compound 1 forms mol­ecular propellers and crystallizes in Poverline{1}, featuring an unusually long Si—Car bond of 1.910 (3) Å. Moreover, the geometry at the central quaternary carbon is rather trigonal-pyramidal than tetra­hedral due to vast intra­molecular stress. One tri­methyl­silyl group is disordered over two positions in a 0.504 (4):0.496 (4) ratio and one S atom is disordered over two positions in a 0.509 (7):0.491 (7) ratio. The contribution of disordered diethyl ether solvent mol­ecule(s) was removed using the PLATON SQUEEZE (Spek, 2015) solvent masking procedure. These solvent mol­ecules are not considered in the given chemical formula and other crystal data.