Silicon Compounds of Neon and Argon

Infrared spectroscopy of CHCl2+ molecular dications

“…Under multi-collision conditions such as those present in our instrument, stabilization of the initial complex could be anticipated. Analogous formation of tightly bound argon complexes has been observed in reactions of SiF 3 2+ [32], CF 3 2 + [33], BF 3 2+ [34] and CH 3 Br 2+ [35] with argon.…”

On the position of helium and neon in the Periodic Table of Elements

“…Obviously, analogous cationic species containing neon or argon are even more facile to manufacture than those of helium, since Lewis basicity (measured by proton affinity) of light noble gas atoms increases in the order: He (1.84 eV) \ Ne (2.06 eV) ( Ar (3.83 eV). Consequently, there is a vast literature on theoretical predictions of novel light noble gas-containing cations (Borocci et al 2010;Rzepa 2010;Pan et al 2016; these efforts were reviewed: Lewars 2008) and experimental reports, as well (Cunje et al 2001;Roithová and Schröder 2009;Lockyear et al 2010), to mention just a few examples. However, the neutral (solid state) analogues of helides (stabilized by counteranions) do not exist albeit their first xenon analogues were successfully prepared (Seppelt and Seidel 2000;Hwang et al 2003).…”

Superelectrophilic chemistry in the gas phase

“…The SiF 3 2+ dication can also activate rare gases [23]. The reaction with argon proceeds very similarly to that with nitrogen (Fig.…”