Category: 312-40-3

Takayama, Toshio published the artcileSilicon-29 NMR chemical shifts of organosilicons as studied by the finite-perturbation theory CNDO/2 method, COA of Formula: C12H10F2Si, the publication is Bulletin of the Chemical Society of Japan (1987), 60(9), 3125-9, database is CAplus.

The ²⁹Si chem. shifts of silicon hydrides and fluorosilanes were calculated by means of the finite-perturbation theory method within the CNDO/2 framework. By a small revision of the formula for the off-diagonal elements of the core Hamiltonian matrix in the CNDO/2 method, the calculated results agree well with the gross trend of the exptl. values of the ²⁹Si chem. shifts in the literature. The relationship between the ²⁹Si chem. shift and the electronic structure was discussed.

Bulletin of the Chemical Society of Japan 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 C14H10N2O, COA of Formula: C12H10F2Si.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Voronkov, M. G. published the artcileReaction of phenyltrifluorosilane and phenyl(hydrocarbyl)difluorosilanes with bis(2-hydroxyethyl)-and tris(2-hydroxyethyl)amine and their N-methyl and O-trimethylsilyl derivatives. A novel route to quasisilatranes, Application In Synthesis of 312-40-3, the publication is Russian Journal of General Chemistry (2006), 76(12), 1854-1859, database is CAplus.

Reaction of phenyltrifluorosilane, diphenyldifluorosilane, and methylphenyldifluorosilane with bis(2-hydroxyethyl)amine, Me-bis(2-hydroxyethyl)amine, Me-bis(2-trimethylsiloxyethyl)amine, leads to 1,3-dioxa-6-aza-2-silacyclooctane derivatives, (N→Si) quasisilatranes: 1,1-difluoroquasisilatrane, 1-phenyl-1-fluoro-5-methylquasisilatrane, or 1-methyl-1-fluoroquasisilatrane, containing the donor-acceptor bond N→Si and pentacoordinate Si atom. 1-Phenylsilatrane is the product of the reaction of phenyltrifluorosilane with tris(2-trimethylsiloxyethyl)amine, whereas with tris(2-hydroxyethyl)amine 1-phenylsilatrane and 1-fluorosilatrane were formed in the molar ratio of 3:1. The structure of the synthesized compounds was proved by ¹H, ¹³C, ¹⁵N, ¹⁹F, ²⁹Si NMR and IR spectroscopy.

Russian Journal of General 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 C20H19NO4, Application In Synthesis of 312-40-3.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Yamaguchi, Shigehiro published the artcilePhotophysical Properties Changes Caused by Hypercoordination of Organosilicon Compounds: From Trianthrylfluorosilane to Trianthryldifluorosilicate, Recommanded Product: Difluorodiphenylsilane, the publication is Journal of the American Chemical Society (2000), 122(28), 6793-6794, database is CAplus.

Modification of π-electron systems by the main group elements represents a new direction toward the construction of organic materials with unusual electronic structures and with unique functions such as sensory materials. One of the potential way may be to take advantage of the hypercoordination abilities of the main-group elements. The authors present the first example of controlling the photophys. properties derived from the hypercoordination of group 14 elements. As a group 14 compound having extended π-conjugated substituents, tri(9-anthryl)fluorosilane (I) with its unique photophys. properties due to the through-space interaction was used. The addition of fluoride ion to I produced tri(9-anthryl)difluorosilicate (II). The use of KF/[2.2.2]cryptand as a fluoride source made possible to isolate the silicate cryptand (IIK⁺/cryptand) in 74% yield. Tetrahedral flat geometry crystal structure of I was changed due to hypercoordination to nearly ideal trigonal bipyramidal structure in IIK⁺/cryptand. The changes in the optical absorption and fluorescence spectra were studied by addition of n-Bu₄NF as a fluoride source to I. Upon formation of silicate IIBu₄⁺ fluorescence intensity increased with âˆ?0 nm hypsochromic shifts of the maximum, its absorption band was shifted into âˆ?0 nm shorter range relative to I. The observed changes should be mainly ascribed not to the intrinsic electronic perturbation by the hypercoordination but to the decrease in the degree of the through-space interaction between the anthryl groups by the structural change from tetrahedral of I to trigonal bipyramidal of II. The large spectral change of fluorescence spectra upon transition from from I to II allowed to estimate the binding constant of I toward fluoride as to be 2.8(±0.2) x 10⁴ M^-1 at 20° C in THF. Photophys. properties of series of similar triarylfluorosilanes and corresponding silicates were also studied.

Journal of the American Chemical Society 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 C18H28N2O7, Recommanded Product: Difluorodiphenylsilane.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Yamaguchi, Shigehiro published the artcileSynthesis, Structures, Photophysical Properties, and Dynamic Stereochemistry of Tri-9-anthrylsilane Derivatives, Product Details of C12H10F2Si, the publication is Organometallics (1998), 17(20), 4347-4352, database is CAplus.

Tri-9-anthrylsilanes having various substituents, such as -F, -H, -OH, -OMe, vinyl, and ethynyl, were prepared, and their UV-visible absorption and fluorescence spectra were determined Chiral propeller-like arrangements of three anthryl groups were confirmed by x-ray structural anal. of the fluoro and vinyl derivatives In solution, however, all the trianthrylsilanes prepared herein undergo enantiomerization at room temperature The free energies of enantiomerization are âˆ?-10 kcal mol^-1, determined by variable-temperature ¹H NMR. The propeller-like structure significantly reduces the quantum yield of fluorescence of the anthracene chromophore.

Organometallics 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 C19H34ClN, Product Details of C12H10F2Si.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia

Yamaguchi, Shigehiro published the artcileEffect of Countercation Inclusion by [2.2.2]Cryptand upon Stabilization of Potassium Organofluorosilicates, Name: Difluorodiphenylsilane, the publication is Organometallics (1999), 18(15), 2851-2854, database is CAplus.

The reaction of organofluorosilanes with KF in the presence of [2.2.2]cryptand affords the corresponding organofluorosilicates with K⁺/[2.2.2]cryptand as the countercation. Not only diorganotrifluorosilicates, Ph₂SiF₃^–, but also triorganodifluorosilicates, Ph₃SiF₂^– and Ph₂MeSiF₂^–, were obtained as stable solids. The x-ray crystal structure analyses of these silicates show that three-dimensional inclusion of the K cation by cryptand prevents an interaction between the K atom and F atoms of the silicates. A comparison of the countercation between K⁺/[2.2.2]cryptand and K⁺/18-crown-6 reveals that the inclusion of the K cation by cryptand subtly facilitates the intramol. ligand exchange, as observed by the variable-temperature ¹⁹F NMR spectra.

Organometallics 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 C19H34ClN, Name: Difluorodiphenylsilane.

Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia