The geometries of 48 isomers of SiHmPHn (m + n ) 0-5), SiHmPHnSiHo (m + n + o ) 0-7), and (SiH3)3P have been optimized at the MP2/6-31G(d) level of theory. Silylenes and cyclic structures dominate the compounds with low numbers of hydrogens; nevertheless, there are several examples of silicon-phosphorus multiple bonding. Relative energies, heats of formation, and bond dissociation energies have...

Herein we report on a series of bulky bis(alkyl)- and bis(silyl)- substituted polysilanes. Moreover, performed desilylation dechlorination experiments with them. These compounds were characterized by multinuclear NMR spectroscopy, mass spectrometry, X-ray crystallography. It was found that the selective formation silyl mono- di-anions is crucial for successful isolation these utilized multiple ...

Treatment of toluene solutions of the silylenes Si(SAr(Me6))2 (Ar(Me6) = C6H3-2,6(C6H2-2,4,6-Me3)2, 1) or Si(SAr(Pr(i)4))2 (Ar(Pr(i)4) = C6H3-2,6(C6H3-2,6-Pr(i)2)2, 2) with excess ethylene gas affords the siliranes (Ar(Me6)S)2SiCH2CH2 (3) or (Ar(Pr(i)4)S)2SiCH2CH2 (4). Silirane 4 evolves ethylene spontaneously at room temperature in toluene solution. A Van't Hoff analysis by variable-temperatur...

Vertical electronic transition energies of diaminosilylenes and their dimers (disilenes and nitrogen-bridged) were investigated by ab initio and density functional calculations. A good linear correlation was found between the observed UV transition energies of various silylenes and disilenes and those of model compounds calculated using the CIS and TD–DFT methods. On the basis of these computat...

The activation of small molecules by silylenes bearing unique electronic properties has been well established in the past few decades. Here, we disclose reactivity study acyclic imino(silyl)silylene 1 with an N-heterocyclic imine ligand (NHI) towards various molecules. Silylene undergoes facile gaseous like dihydrogen, ethylene, and carbon dioxide. While cycloaddition carbonyl compounds to was ...

Halides were used as the precursors to prepare various kinds of materials by stripped off the halogens. Metals, metal silicides and carbon related materials could be prepared by using metal halides, silicon halides and carbon halides as the precursors. Some active metals and active meta stable species were used as stripping reagents.

Compounds exhibiting main group elements in low oxidation states were found to mimic the reactivity of transition metal complexes. Like latter, such species show a proclivity changing their state as well coordination number by +2, therefore fulfilling requirements for oxidative additions. Prominent examples compounds that undergo additions with organohalides R-X (R = alkyl, aryl, X F, Cl, Br, I...