The XeCl+ Ion: [XeCl]+[Sb2F11]−

Characterization of an organometallic xenon complex using NMR and IR spectroscopy

“…This work builds on our use of NMR to characterize short-lived organometallic alkane complexes such as Re(Cp)(CO) 2 Monitoring the Photolysis of Re( i PrCp)(CO)2(PF3) (1) in Xe Solvent. The photolysis of 1 was initially monitored by using 19 F NMR spectroscopy in lXe at 163 K (Fig.…”

“…Since then, many compounds containing Xe and, to a lesser extent, Kr have been prepared. The formation of covalent bonds of varying stability with fluorine (Kr, Xe), nitrogen (Xe), oxygen (Kr, Xe), and more recently chlorine (Xe) (2) has been observed (3,4). One example of a largely covalent argon compound was observed in a matrix at cryogenic temperatures (5).…”

“…Weiller (14) studied W(CO) 5 Xe, which has a lifetime of Ϸ1.5 min at 170 K in lXe, and the Xe-W bond energy in this compound was estimated to be ⌬H ‡ ϭ 8.4 Ϯ 0.2 kcal⅐mol Ϫ1 (1 cal ϭ 4.18 J). Bergman, Moore, and coworkers (15,16) studied the kinetics of Rh(Cp*)(CO) 2 [Cp* ϭ 5 -C 5 (CH 3 ) 5 ] photolyzed species in lXe and lKr and the mechanism of coordination.…”

“…Re(Cp)(CO) 2 Xe (Cp ϭ 5 -C 5 H 5 ) was shown by using time-resolved IR (TRIR) spectroscopy to be long-lived at room temperature in supercritical Xe (scXe) solution (17). Re(Cp)(CO) 2 Xe was shown to have a lifetime of up to 3.5 min at 170 K in lXe, leading to the prediction that it was a realistic goal to observe such complexes by NMR spectroscopy (18). Xe, by comparison to the other noble gases, forms the most stable organometallic complexes.…”

Atypical Compounds of Gases, which Have Been Called “Noble”

“…30 This new bond was brought to life in two novel crystalline species, (F 5 C 6 )XeCl and {[(F 5 C 6 )Xe] 2 Cl + }(AsF 6 2 ), which showed reasonable kinetic stability at ambient temperature. Since then only one more 31 has been added to the list of compounds isolable 'in the flask'. The chemistry of the Xe-Cl bond thus remains largely unexplored.…”