Matrix-isolation and theoretical study of the HXeCCXeH⋯HCCH and HXeCC⋯HCCH complexes

Abstract

We report on the identification of the complexes of two noble-gas hydrides, HXeCCXeH and HXeCC, with acetylene. These complexes were prepared by photolysis (250 nm) and annealing (55-65 K) of HCCH/Xe matrices. The experimentally observed monomer-to-complex shifts of the H-Xe stretching modes of the HXeCCXeH/HCCH (about +17 cm À1) and HXeCC/HCCH complexes (from +20 to +46 cm

Photochemistry of the H2O/CO System Revisited: The HXeOH···CO Complex in a Xenon Matrix

“…Noble-gas hydrides are photolabile species and their photodecomposition helps the identification of relatively weak bands of their complexes. − ,, In the present work, a low-pressure mercury lamp (254 nm) was used to decompose the noble-gas hydrides. For matrices containing both H 2 O and CO, the 1590.3 cm –1 band of the HXeOH···CO complex decreases in intensity synchronously with the band of HXeOH monomer (spectra a and b in Figure ).…”

Long‐bonding and effects of carbon hybridization on the bonding of MNgC compounds (M = Cu, Ag, Au)

“…It has been found that the stability and reactivity of oxonium salt [RXe] + Y À depend on the properties of organic group R and anion Y À . Many Xe C compounds have been theoretically predicted and experimentally prepared, such as C 6 F 5 XeZ(Z = F, Cl, CN) [20], C 2 H 3 COONgH(Ng = Ar, Kr, and Xe) [21], HNgC n N [22,23], XRgCO + (X = F, Cl, Rg = Ar, Kr, Xe) [24], NgMCp + (Ng = He Rn, M = Be Ba, and Cp = η 5 C 5 H 5 ) [25], HXeCCXeHÁ Á ÁHCCH [26], OBNgCN (Ng = Kr, Xe, Rn) [27], Ng 2 @C 60 (Ng = He Xe) [28], FNgCF(Ng = Kr, Xe) [29], RXeXeR(R = CN, NC, CCH, BS) [30], and (Ng) n NC + [31] and so on.…”

“…During this time, several key works contributed to the development of noble gas chemistry, including Pauling's theoretical prediction of the existence of the noble gas fluorides in 1933 [1], Neil Bartlett's successful synthesis of Xe + [PtF 6 ] − in 1962 [2], and Räsänen's synthesis of HArF using HF photocatalysis in Ng matrix in 2001 [3]. In recent years, many compounds formed by noble gases and various chemical elements have been synthesized experimentally and/or predicted theoretically [3–37]. It seems that noble gases can bond with every element in the periodic table and plug into any bond to form insertion compounds.…”