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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Reversible Reactions of Ethylene with Distannynes Under Ambient Conditions
TL;DR: It is discovered that two distannynes (compounds with triply bonded tins) react readily with ethylene to form cycloadducts, with tin-carbon σ bonds taking the place of C-C and Sn-Sn π bonds.
Journal ArticleDOI
RGe(I)Ge(I)R Compound (R = PhC(NtBu)2) with a Ge−Ge Single Bond and a Comparison with the Gauche Conformation of Hydrazine†
Selvarajan Nagendran,Sakya S. Sen,H. W. Roesky,Debasis Koley,H. Grubmueller,A. Pal,R. Herbst-Irmer +6 more
TL;DR: In this paper, the reduction of the chloride [PhC(NtBu)2]GeCl with potassium in THF to afford the reddish crystals of 2Ge2Ge2 (2) was reported.
Journal ArticleDOI
Chemistry of functionalized silylenes
TL;DR: The functional group attached to the α-position of the silicon(II) centre plays a key role to determine the final product as mentioned in this paper. But the chemistry of functionalized silylenes is markedly different from the previously reported dicoordinate silybenes.
Journal ArticleDOI
Why do the heavy-atom analogues of acetylene E2H2 (E = Si-Pb) exhibit unusual structures?
TL;DR: DFT calculations at BP86/QZ4P have been carried out with the goal to explain the unusual equilibrium geometries of the heavier group 14 homologues where E = Si-Pb, which are explained with the interactions between the EH moieties in the (X( 2)Pi) electronic ground state which differ from C(2)H(2), which is bound through interactions between CH in the a(4)Sigma(-) excited state.
Journal ArticleDOI
Oxoboryl Complexes: Boron−Oxygen Triple Bonds Stabilized in the Coordination Sphere of Platinum
TL;DR: Formation of the oxoboryl complex trans-[(Cy3P)2BrPt(B≡O)] (Cy being cyclohexyl) by means of reversible liberation of trimethylsilylbromide from the boron–bromine oxidative addition product of dibromo(trimethylsiloxy)borane and [Pt (PCy3)2] in room-temperature toluene solution is reported.
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.