Journal ArticleDOI
A stable compound containing a silicon-silicon triple bond.
TLDR
The reaction of 2,2,3,3-tetrabromo-1,1,4, 4,4-tetrakis[bis(trimethylsilyl)methyl]-1, 4-diisopropyltetrasilane with four equivalents of potassium graphite (KC8) in tetrahydrofuran produces 1,1-4,4-, which shows half the magnitude of the bond shortening of alkynes compared with thatAbstract:
The reaction of 2,2,3,3-tetrabromo-1,1,4,4-tetrakis[bis(trimethylsilyl)methyl]-1,4-diisopropyltetrasilane with four equivalents of potassium graphite (KC 8 ) in tetrahydrofuran produces 1,1,4,4-tetrakis[bis(trimethylsilyl)methyl]-1,4-diisopropyl-2-tetrasilyne, a stable compound with a silicon-silicon triple bond, which can be isolated as emerald green crystals stable up to 100°C in the absence of air. The SiSi triple-bond length (and its estimated standard deviation) is 2.0622(9) angstroms, which shows half the magnitude of the bond shortening of alkynes compared with that of alkenes. Unlike alkynes, the substituents at the SiSi group are not arranged in a linear fashion, but are trans-bent with a bond angle of 137.44(4)°.read more
Citations
More filters
Journal ArticleDOI
Theoretical study of pentavalent halosiliconates: structure and charge delocalization
M. Aichi,M. Hafied,A. Dibi +2 more
TL;DR: In this paper, the authors detect the pentavalent silicon center in the structure of trimethylalkoxysilanes and trimethyl-silyloxyfurane with halogen ions X.
Book ChapterDOI
Triple Bonds between Bismuth and Group 13 Elements: Theoretical Designs and Characterization
TL;DR: In this paper, the effect of substitution on the potential energy surfaces of the triply-bonded RE13-group-15 (Group 13-Group 15) species was investigated using density functional theories (M06-2X/Def2-TZVP, B3PW91/Def 2-TzVP, and B3LYP/LANL2DZ+dp).
Journal ArticleDOI
Molecule matters: A chromium compound with a quintuple bond
TL;DR: The first stable compound with a quadruplet bond was reported recently as discussed by the authors, which is an exciting development that raises fundamental questions in theoretical and experimental chemistry, and has been widely reported in the literature.
Book ChapterDOI
Aromatic compounds bearing heavy group 14 atoms in their molecular frameworks
TL;DR: The synthesis of aromatic compounds bearing heavy group 14 atoms (Si, Ge, Sn and Pb) in carbon frameworks is summarized in this paper , where the replacement of skeletal carbon atoms of the aromatic compounds by heavy groups 14 atoms does not collapse the original aromaticity even though some cases reveal that coordination to metals are of crucial importance to retain aromaticity.
Journal ArticleDOI
A Silylene‐Stabilized Germanium Analogue of Alkynylaluminum
TL;DR: In this paper , a silylene-stabilized germanium analogue of alkynylaluminum (4) was synthesized by the reaction of a Silylene stabilized digermavinylidene (3) with 0.25 equiv of (AlCp*)4 in THF at 80 °C.
References
More filters
BookDOI
The chemistry of organic silicon compounds
Zvi Rappoport,Yitzhak Apeloig +1 more
TL;DR: A.R.Bassindale and P.G.Taylor as mentioned in this paper discussed the photochemistry of organosilicon compounds, A.R., B.B.Birkofer and O.Ojima.
Journal ArticleDOI
π-Bonding and the Lone Pair Effect in Multiple Bonds between Heavier Main Group Elements
Journal ArticleDOI
Tetramesityldisilene, a stable compound containing a silicon-silicon double bond
TL;DR: Irradiation of 2,2-bis(2,4,6-trimethylphenyl)hexamethyltrisilane in hydrocarbon solution produces tetramesityldisilene, which can be isolated as a yellow-orange solid stable to room temperature and above in the absence of air.
Journal ArticleDOI
Synthesis and Characterization of 2,6-Trip2H3C6PbPbC6H3-2,6-Trip2 (Trip = C6H2-2,4,6-i-Pr3): A Stable Heavier Group 14 Element Analogue of an Alkyne
TL;DR: The Stable Heavier Group 14 Element Analogue of an Alkyne (SHE 14) as discussed by the authors is a stable heavier group 14 analogue of an alkyne.