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
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Journal ArticleDOI
Oxidative Addition of Water and Methanol to a Dicationic Trivalent Phosphorus Centre
TL;DR: The authors' recently synthesised phosphorus dication is observed to activate water (and methanol) under reactions conditions atypical for other systems containing a non-metal centre.
Journal ArticleDOI
The selective formation of a 1,2-disilabenzene from the reaction of a disilyne with phenylacetylene.
Tomohiro Sugahara,Jing-Dong Guo,Daisuke Hashizume,Takahiro Sasamori,Shigeru Nagase,Norihiro Tokitoh +5 more
TL;DR: A stable 3,5-diphenyl-1,2-disilabenzene was selectively synthesized by the reaction between the isolable disilyne TbbSi[triple bond, length as m-dash]SiTbb (Tbb = 2,6-[CH(SiMe3)2]2-4-t-Bu-phenyl) with phenylacetylenes.
Journal ArticleDOI
Isolation of a 1-Magnesium-2,3-disilacyclopropene and a Related Bis(disilenide).
TL;DR: The first synthesis of a 1-magnesium-2,3-disilacyclopropene and a related bis(disilenide) is reported, which represents the first reported example of a stable disilyne dianion.
Journal ArticleDOI
Theoretical study on the stability of osmasilabenzynes
TL;DR: The authors' results reveal a polarized and weak Os-Si triple bond in osmasilabenzyne due to the reluctance of the silicon to participate in π bonding, and an antibonding interaction between the metal and metal-bonded carbon and silicon in the HOMO of osmasILabenzne is identified.
Journal ArticleDOI
N−H and N=C Bond Formation via Germanium(III) Diradicaloid Intermediates and C−S Bond Cleavage in Reactions of the Digermyne Ar′GeGeAr′ (Ar′ = C6H3-2,6-(C6H3-2,6-Pri2)2) with Azides
TL;DR: It is proposed that 3 and 4 are obtained via diradical imido intermediates followed by H-abstraction from solvents, whereas 6 was formed by the activation of azide group in concert with C-S bond cleavage.
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.