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
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Journal ArticleDOI
The Highest Bond Order Between Heavier Main-Group Elements in an Isolated Compound? Energetics and Vibrational Spectroscopy of S2I4(MF6)2 (M = As, Sb)
Scott Brownridge,T. Stanley Cameron,Hongbin Du,Carsten Knapp,Ralf Köppe,Jack Passmore,J. Mikko Rautiainen,Hansgeorg Schnöckel +7 more
TL;DR: The stability of S2I4(2+) in the gas phase, in SO2 and HSO3F solutions, and in the solid state as its AsF6- salts was established by calculations using different methods and basis sets, estimating lattice enthalpies, and calculating solvation energies.
Journal ArticleDOI
Theoretical Study on the Stability and Aromaticity of Metallasilapentalynes
TL;DR: In this paper, the authors report a thorough theoretical study on the stability and aromaticity of metallasilapentalynes and show that the silicon atom is reluctant to participate in π bonding.
Journal ArticleDOI
[{2,6‐(Me2NCH2)2C6H3}Sn]2: ein intramolekular koordiniertes Diorganodistannin
Journal ArticleDOI
Beyond carbocations: Synthesis, structure and reactivity of heavier Group 14 element cations
TL;DR: A survey of the synthesis, structure and reactivity of the recently reported heavier Group 14 element cations can be found in this article, where a large number of novel Group 14 elements, many of which displayed very different coordination geometry and frontier orbital configurations compared to classical carbocations, have been synthesized in recent years utilizing specially designed ligands.
Book ChapterDOI
Multiple Bonds with Silicon: Recent Advances in Synthesis, Structure, and Functions of Stable Disilenes
Takeaki Iwamoto,Shintaro Ishida +1 more
TL;DR: In this article, the recent progress in the chemistry of disilenes (R2Si=SiR2) with functional groups in the last decade is reviewed, especially, novel synthetic routes to disilsenes via functionalized disilene and disilynes, as well as structures, properties, and selected new reactivity of disils.
References
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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.