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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A [I−Ca−I−Ca−I−Ca−I]2+ Chain Stabilized by Two Chelating β-Diketiminate Ligands
TL;DR: The X-ray structural analysis of 1 reveals a unprecedented Ca3I4 chain structure with the calcium atoms exhibiting different coordination modes within the complex, anticipated as a possible suitable precursor for low-valent calcium compounds.
Journal ArticleDOI
Metal-Substituted Disilynes with Linear Forms
TL;DR: In this paper, a systematic survey of linear disilynes ESi≡SiE with various metal elements E by ab initio and density functional theory calculations has shown that magnesium is highly suited to stabilize the linear conformation of the Si-Si bond.
Journal ArticleDOI
Moleküle mit einer echten Si‐Si‐Dreifachbindung und ein stabiles Derivat von [SiH]+
Journal ArticleDOI
Recent advances in η2-disilene and η2-disilyne mononuclear transition metal complexes and related compounds
Shintaro Ishida,Takeaki Iwamoto +1 more
TL;DR: Recently, a large number of disilene transition metal complexes have been synthesized by various synthetic methods and structural characteristics are well discussed by using X-ray diffraction analysis, 29 Si NMR resonances and Dewar-Chatt-Duncanson model.
Journal ArticleDOI
Triple-Bonded Boron≡Phosphorus Molecule: Is That Possible?
TL;DR: The present theoretical observations indicate that both the electronic and the steric effect of bulkier substituent ligands play a key role in making triply bonded R′B≡PR′ species synthetically accessible and isolable in a stable form.
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.