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
More filters
Journal ArticleDOI
Direkte Bindungen zwischen Metallatomen: Dimetallkomplexe von Zink, Cadmium und Quecksilber
Ernesto Carmona,Agustín Galindo +1 more
TL;DR: The Synthese and Charakterisierung of [Zn2(η5-C5Me5)2], einer stabilen Molekulverbindung with einer Zn-Zn-Bindung and das erste Beispiel einer Dimetallocen-Struktur, offnete ein neues Kapitel sowohl in der Organometallchemie des Zinks als in der Metallocenchemie as discussed by the authors.
Journal ArticleDOI
A stable silylenoid and a donor-stabilized chlorosilylene: low-coordinate silicon compounds -- a never-ending story?
Journal ArticleDOI
Theoretical study on the transition-metal oxoboryl complex: M-BO bonding nature, mechanism of the formation reaction, and prediction of a new oxoboryl complex.
Guixiang Zeng,Shigeyoshi Sakaki +1 more
TL;DR: The Pt-BO bonding nature and the formation reaction of the experimentally reported platinum(II) oxoboryl complex, simplified to PtBr(BO)(PMe(3))(2), were theoretically investigated with the density functional theory method.
Journal ArticleDOI
Molecular Tailoring: Reaction Path Control with Bulky Substituents
Tibor Szilvási,Tamás Veszprémi +1 more
TL;DR: In this paper, the use of proper substituents can stabilize only one structure on the potential energy surface (PES), eliminating all other relevant minima, not just increasing activation barriers as chemical intuition dictates.
Journal ArticleDOI
Phosphine-Stabilized Digermavinylidene.
Kilian M. Krebs,Dominik Hanselmann,Hartmut Schubert,Kai M. Wurst,Marcus Scheele,Lars Wesemann +5 more
TL;DR: The electronic structure of the digermavinylidene was investigated by density functional theory calculations and in reaction with adamantylphosphaalkyne the product of a [2+2] cycloaddition was characterized.
References
More filters
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.