Helium dimer (redirect from Dihelium)
meaning an excited state, it is the first known Rydberg molecule. Several dihelium ions also exist, having net charges of negative one, positive one, and...
35 KB (4,059 words) - 18:20, 1 November 2024
ionized. Dihelium (He-He) is a hypothetical molecule and MO theory helps to explain why dihelium does not exist in nature. The MO diagram for dihelium looks...
39 KB (4,968 words) - 12:08, 22 September 2024
Helium compounds (redirect from Dihelium arsenolite)
ionised helium. The dihelium cation is formed by an ionised helium atom combining with a helium atom: He+ + He → He+ 2. The diionised dihelium He2+ 2 (1Σ+ g)...
92 KB (11,102 words) - 18:16, 29 April 2024
stable[citation needed] neutral homonuclear diatomic molecule (after dihydrogen and dihelium), dilithium is an extremely important model system for studying fundamentals...
9 KB (700 words) - 21:48, 31 October 2024
He2H+, He3H+, He4H+, He5H+ and He6H+. The dihelium hydride cation, He2H+, is formed by the reaction of dihelium cation with molecular hydrogen: He+ 2 +...
30 KB (2,989 words) - 04:40, 1 November 2024
out the stabilizing effect provided by the bonding orbital; therefore, dihelium's bond order is 0. This is why helium would prefer to be monatomic over...
9 KB (1,093 words) - 22:34, 24 September 2022
of Rydberg matter which has an extended lifetime against de-excitation. Dihelium (He2*) was the first known Rydberg molecule. In 2009, a different kind...
8 KB (888 words) - 11:05, 18 April 2023