50490-73-8Relevant academic research and scientific papers
The Cyclohexadienyl-Leaving-Group Approach toward Donor-Stabilized Silylium Ions
Simonneau, Antoine,Biberger, Tobias,Oestreich, Martin
, p. 3927 - 3929 (2015)
The cyclohexa-2,5-dien-1-yl group is established as a leaving group at silicon as an alternative to the Bartlett-Condon-Schneider silicon-to-carbon hydride transfer and the allyl-leaving-group approach to generate silylium ions. Hydride abstraction from t
Torsional distortions in trimesitylsilanes and trimesitylgermanes
Lambert, Joseph B.,Stern, Charlotte L.,Zhao, Yan,Tse, Winston C.,Shawl, Catherine E.,Lentz, Kirk T.,Kania, Lidia
, p. 21 - 31 (1998)
The crystal structures have been solved for allyltrimesitylsilane (3), trimesitylsilane (4), and trimesitylgermane (5). Steric congestion caused by the three mesityl groups causes some lengthening of the Si-C and Ge-C bonds. The C-Si-C and C-Ge-C bond ang
Silylium ion/phosphane lewis pairs
Reissmann, Matti,Schaefer, Andre,Jung, Sebastian,Mueller, Thomas
, p. 6736 - 6744 (2014/01/06)
The reactivity of a series of silylium ion/phosphane Lewis pairs was studied. Triarylsilylium borates 4[B(C6F5)4] form frustrated Lewis pairs (FLPs) of moderate stability with sterically hindered phosphanes 2. Some of these FLPs are able to cleave dihydrogen under ambient conditions. The combination of bulky trialkylphosphanes with triarylsilylium ions can be used to sequester CO2 in the form of silylacylphosphonium ions 12. The ability to activate molecular hydrogen by reaction of silylium ion/phosphane Lewis pairs is dominated by thermodynamic and steric factors. For a given silylium ion increasing proton affinity and increasing steric hindrance of the phosphane proved to be beneficial. Nevertheless, excessive steric hindrance leads to a breakdown of the dihydrogen-splitting activity of a silylium/phosphane Lewis pair.
Generation of silanimines by photolysis of hindered azidosilanes
Zigler, Steven S.,Johnson, Leighta M.,West, Robert
, p. 187 - 198 (2007/10/02)
Trimesitylazidosilane (1) and three new azidosilanes, Mes2Si(N3)SiPh2-t-Bu (2), Me2Si(N3)SiMes2-t-Bu (3) and i-Pr2Si(N3)SiMes2-t-Bu (4), were prepared and photolyzed at 254 nm.Compound 1 photolyzes in glassy 3-methylpentane (3-MP) at 77 K or in 3-MP solut
TRIARYL-SILYL, -GERMYL, AND -STANNYL RADICALS MAr3 (M=Si, Ge, OR Sn AND Ar=2,4,6-Me3C6H2) AND Ge(2,6-Me2C6H3)3: SYNTHESIS AND ESR STUDIES
Gynane, Michael J. S.,Lappert, Michael F.,Riley, Paul I.,Riviere, Pierre,Riviere-Baudet, Monique
, p. 5 - 12 (2007/10/02)
The triarylmetal-centred radicals MAr3 (M=Si, Ge, or Sn: Ar=2,6-Me2C6H3 or 2,4,6-Me3C6H2) have been prepared from the appropriate triarylmetal chloride, MAr3Cl, and an electron-rich olefin >2 (R=Me or Et) under UV irradiation in toluene at low
