Argon compound

Not only components from the set A,...,N can interfere with the analytes but also additional species which may be partly unknown or will be formed during the measuring process. Such situations occur especially in ICP-MS, where the signal of an isotope A, may be interfered by isotopes of other elements, Bj, Q etc., and additionally by molecule ions formed in the plasma (e.g., argon compound ions and ions formed from solvent constituents). 

N. Runeberg, M. Pettersson, L. Khriachtchev, J. Lundell and M. Rasanen, A theoretical study of HArF, a newly observed neutral argon compound. J. Chem. Phys. 114, 836—41 (2001). 

Of course, Ar = argon too, but so few argon compounds exist that... 

The most important aspects of the QTAIM that are relevant for questions of chemical bonding shall be discussed using the first neutral argon compound HArF as an example, which was recently synthesized. ... 

In the following, we will shortly summarize the knowledge about neutral compounds of the light noble gas elements bound by van der Waals interaction including the border-line structures NgBeO. Although no chemically bound molecule of He, Ne, and Ar is known as yet, there is reason to believe that argon compounds are feasible. This is discussed at the end of this section. 

In 1962 the first chemical noble gas compound, formulated as XePtFg, was synthesized by Neil Bartlett. This result spurred intense research activity and led to the discovery of numerous xenon and krypton compounds. In 2000 the formation of the first argon compound, argon fluorohydride (HArF), was reported by Leonid Khriachtchev and colleagues, see also Argon Cavendish, Henry Helium Krypton Neon Ramsay, William Ruthereord, Ernest Soddy, Frederick Strutt, John Xenon. 

Khriachtchev, Leonid Pettersson, Mika Runeberg, Nino Lundell, Jan and Rasa-nen. Markka (2000). A Stable Argon Compound. Nature 406(6798) 874—876. 

When Neil Bartlett formed a compound between xenon and PtFg in 1962, he broke a psychological barrier. A number of other xenon compounds were synthesized in short order as was KrF2 and probably a radon compound. The next lightest member of the series, argon, resisted attempts to make a stable compound for almost four more decades. There are still no argon compounds isolable at ambient conditions. 

The action of recoil atoms on fullerenes (C6o> C70. etc.) has been studied recently (Braun and Rausch 2000 Nakahara et al. 2000). Some radionuclides with energy of nuclear recoil easily come to rest inside the fullerene. Braun and Rausch observed the formation of endohedral argon compound of fullerene Ar Qo during neutron irradiation of Ceo in the presence of argon (Braun and Rausch 1995). They attributed their results to endohedral argon compound by implosion of Ceo in argon nuclear recoil. O Table 24.10 shows endohedral fullerene compounds reported. 

The product is a volatile, colorless solid (Figure 22.52). Since then, a number of noble-gas compounds have been prepared that typically involve bonds to the highly electronegative elements fluorine and oxygen. Most of these are compounds of xenon (see Table 22.12), but a few are compounds of krypton and radon. Recently, an argon compound, HArF, was synthesized as well as compounds of CUO bonded to Ne, Ar, Kr, and Xe. All of these recent compounds were synthesized at very low temperatures. 

The first argon compound, HArF, was prepared in 2000. This linear molecule has the... 

Attempts to generate real argon compounds such as ArF2 respect ArF have failed [2.9]. Together with water, argon forms a hydrate with a dissociation pressure of 106 bar at 0 °C. At 0 °C and above 106 bar, this hydrate is stable. Moreover, with hydroquinone an inclusion compound is known (clathrates) however containing no real chemical bonds [2.8]. 

PdCl2, stored at RT under Argon. Compound should be a rusty red brown color (Alfa Aesar, Ward Hill, MA). 

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