Helmer, Bradley J. published the artcileSilicon-29 NMR of pentacoordinate silicon derivatives, Product Details of C12H10F2Si, the publication is Journal of Organometallic Chemistry (1983), 251(3), 295-8, database is CAplus.
The temperature dependence of chem. shifts in o-(Me2NCH2)C6H4SiRR1R2 (I; R, R1, R2 = Me, Ph, 1-C10H7, H, F, Cl, OMe, OEt) and PhSiRR1R2 indicated the existence of an equilibrium between tetra- and penta-coordinate forms. I (R = 1-C10H7, R1 = R2 = H) is the 1st Si derivative without halogen or chalcogen to show intramol. pentacoordination. This coordination may account for the reactivity of the Si-H bond in this compound
Journal of Organometallic Chemistry published new progress about 312-40-3. 312-40-3 belongs to catalysis-chemistry, auxiliary class Organic Silicones, name is Difluorodiphenylsilane, and the molecular formula is C12H10F2Si, Product Details of C12H10F2Si.
Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia