Flash Vacuum Thermolysis Synthesis of New Reactive Compounds Containing a Silicon−Heteroatom Double Bond

AIM and ELF Electronic Structure/G2 and G3 π-Bond Energy Relationship for Doubly Bonded Silicon Species, H2SiX (X = E14H2, E15H, E16)1

“…The chemistry of hetero-π-systems of silicon originates in works in which the first transient silene, Me 2 SiCH 2 , was cleanly generated in the gas phase by 1,1-dimethyl-1-silacylcobutane 2+2 thermocycloreversion . Nonhindered compounds of doubly bonded silicon such as silenes, silanimines, silanones, disilenes, silaphosphenes, and silanthiones are the intermediates in many high-temperature processes taking place in the gas phase. , The most important energetic feature of the doubly bonded silicon species is the value of the π-bond energy, D π (SiE). There are a few theoretical approaches to estimate the D π (SiE).…”

Formation of Cumulenes, Triple-Bonded, and Related Compounds by Flash Vacuum Thermolysis of Five-Membered Heterocycles

“…[1,2] Modern mass-spectrometric techniques, such as collisional activation (CA) and neutralization-reionization (NR) mass spectrometry have been directly applied to the species generated by FVT inside the ion source housing. Other researchers have used other techniques, such as photoelectron [3] and microwave spectroscopy, among others. [4] Preparative FVT has been reviewed elsewhere.…”

Flash Vacuum Pyrolysis: Techniques and Reactions

“…The PE spectrum of silabenzene was obtained using the propene elimination in a specially designed short-path pyrolysis apparatus at ca. 700 o C. [145] Several compounds with Si=C, Si=N, Si=P, and Si=S bonds [146] as well as a number of silylenes and germylenes [147] have been generated by FVP and characterized by PES and in many cases also by IR and/or mass spectrometry.…”