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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Cleavage of the SnSn Multiple Bond in a Distannyne by Cyclooctatetraene: Formation of the π‐Bound Inverse Sandwich Complex [(Ar′Sn)2(μ2‐η2:η3‐cot)]
TL;DR: It is shown that the distannyne undergoes reversible complexation with two molecules of either ethylene or norbornadiene, processes that are considered symmetry-forbidden for alkynes but are enabled by the higher reactivity caused by the strained geometry in the heavier analogues.
Journal ArticleDOI
The Nature of the Idealized Triple Bonds Between Principal Elements and the σ Origins of Trans-Bent Geometries-A Valence Bond Study.
TL;DR: A valence bond study of 27 triply bonded molecules of the general type X≡Y, where X and Y are main element atoms/fragments from groups 13-15 in the periodic table, showing correlation with the molecular electronegativity and the mechanism required to satisfy the equilibrium condition for the bond.
Journal ArticleDOI
Recent Developments in the Reactivity of Stable Disilynes
Matthew Asay,Akira Sekiguchi +1 more
TL;DR: The isolation of stable disilynes, one of the most recent and intriguing additions to the main group 14 species has been discussed in this paper. But it has not yet been investigated in the literature.
Journal ArticleDOI
Ge2 trapped by triple bonds between two metal centers: the germylidyne complexes trans,trans-[Cl(depe)2M[triple chemical bond]Ge--Ge[triple chemical bond]M(depe)2Cl] (M=Mo, W) and bonding analyses of the M[triple chemical bond]Ge--Ge[triple chemical bond]M chain.
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.
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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.