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
Investigations on non-classical silylium ions leading to a cyclobutenyl cation.
Arthur Martens,Marvin Kreuzer,Alexander Ripp,Marius Schneider,Daniel Himmel,Harald Scherer,Ingo Krossing +6 more
TL;DR: In this article, the removal of the [Me3Si]- moiety from the cation in 1 was investigated as a means to provide free tetramethyl cyclobutadiene (CBD).
Journal ArticleDOI
Synthesis and Reactivity of New Pyrazolyl-Functionalized Potassium Silanides
TL;DR: The pyrazolyl-functionalized oligosilanes Si(SiMe2PzR)4 (2a R = tBu; 2b R = iPr) were prepared by the reaction of 3-R-pyrazole with SiMe2Cl)4 in the presence of NEt3 as mentioned in this paper.
Journal ArticleDOI
Ions Related to Silynes and Disilynes: Computational Studies
TL;DR: In this article, two series of silicon-containing compounds related to disilyne and silyne, HSiSiH and HSiCH, have been carried out and the relationships between the structural characteristics of the parent compounds and associated radical cation, radical anion, singlet dianion, and triplet dianions have been investigated.
Book ChapterDOI
Catenated Compounds – Group 14 (Ge, Sn, Pb)
Christoph Marschner,Johann Hlina +1 more
TL;DR: In this article, the authors discuss compounds containing Ge-Ge, Sn-Sn, or Pb-Pb bonds in the cases of germanium and tin, ranging from small oligomers to long-chain polymers.
Journal ArticleDOI
Persistent Digermenes with Acyl and α-Chlorosilyl Functionalities
TL;DR: Spectroscopic and computational evidence prove the constitution of 1‐adamantoyldigermene as a first persistent species with a heavy double bond conjugated with a carbonyl moiety.
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.