- Torsional distortions in trimesitylsilanes and trimesitylgermanes
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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
- Lambert, Joseph B.,Stern, Charlotte L.,Zhao, Yan,Tse, Winston C.,Shawl, Catherine E.,Lentz, Kirk T.,Kania, Lidia
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- Generation of silanimines by photolysis of hindered azidosilanes
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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
- Zigler, Steven S.,Johnson, Leighta M.,West, Robert
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p. 187 - 198
(2007/10/02)
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- UEBER STERISCH GEHINDERTE FREIE RADIKALE XI. DIE ERSTE REVERSIBLE THERMISCHE DISSOZIATION VON DISILANEN R3Si-SiR3 ZU SILYLRADIKALEN R3Si. UND VON DIGERMANEN R3Ge-GeR3 ZU GERMYLRADIKALEN R3Ge.
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The Si-Si bond in hexamesityldisilane dissociates reversibly even between -60 and -32 deg C (ΔHdiss 19.0 +/- 2 kcal mol-1) and the Ge-Ge bond in hexamesityldigermane reversibly between -12 and +53 deg C (ΔHdiss 20.7 +/- 2
- Neumann, Wilhelm P.,Schultz, Klaus-Dieter,Vieler, Robert
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p. 179 - 192
(2007/10/02)
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- 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
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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
- Gynane, Michael J. S.,Lappert, Michael F.,Riley, Paul I.,Riviere, Pierre,Riviere-Baudet, Monique
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