A monoclinic polymorph of 2,6-Mes2 C6 H3 SiF3

Abstract

Monoclinic 2,6-Mes 2 C 6 H 3 SiF 3 comprises two crystallographically independent molecules in the asymmetric unit, which are associated by a weak Si···F contact. The previously known orthorhombic modification lacks this structural feature.

Bis(m-terphenyl)silanes

“…Only a small number of these species contain two of these m -terphenyl substituents, which is arguably due to their rather difficult preparation. Examples include species of the elements Mn, , Fe, ,, Co, ,, Zn, − Cd, , Hg, ,, Al, , Ga, − In, Tl, Ge, − Sn, ,,,, Pb, , and Bi, the majority of which are low-coordinate and/or contain heavier elements possessing larger atomic radii. While mono( m -terphenyl)silanes are abundantly known, − to the best of our knowledge there is no reported case of bis( m -terphenyl)silanes.…”