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The dihydrogen cation or hydrogen molecular ion is a cation (positive ion) ... The energy E is the eigenvalue of the Schrödinger equation for the single electron.
Zundel cation. A hydrogen atom is made up of a nucleus with charge +1, and a single electron. Therefore, the only positively charged ion possible has charge +1. It is noted H +. Depending on the isotope in question, the hydrogen cation has different names: Hydron: general name referring to the positive ion of any hydrogen isotope (H +)
Øyvind Burrau (or Øjvind Burrau [1] [2]), born 24 March 1896 [3] in Copenhagen, died 31 March 1979, [4] was a Danish scientist who is best known for his early quantum mechanical description of the dihydrogen cation [1] [2] which he made while at the Niels Bohr Institute. [2] Burrau worked as a geodesist at the Geodætisk Institut from 1928 to ...
A dihydrogen complex of iron, [HFe(H 2)(dppe) 2] +. H 2 is relatively unreactive. The thermodynamic basis of this low reactivity is the very strong H–H bond, with a bond dissociation energy of 435.7 kJ/mol. [83] It does form coordination complexes called dihydrogen complexes. These species provide insights into the early steps in the ...
The photoelectron spectrum of dihydrogen shows a single set of multiplets between 16 and 18 eV (electron volts). [14] The dihydrogen MO diagram helps explain how a bond breaks. When applying energy to dihydrogen, a molecular electronic transition takes place when one electron in the bonding MO is promoted to the antibonding MO. The result is ...
An often studied dihydrogen complex of iron, [HFe(H 2)(dppe) 2] +. The usual method for characterization is 1 H NMR spectroscopy. The magnitude of spin–spin coupling, J HD, is a useful indicator of the strength of the bond between the hydrogen and deuterium in HD complexes. For example, J HD is 43.2 Hz in HD but 33.5 Hz in W(HD)(CO) 3 (P i Pr ...
The trihydrogen cation or protonated molecular hydrogen (IUPAC name: hydrogenonium ion) is a cation (positive ion) with formula H + 3, consisting of three hydrogen nuclei sharing two electrons. The trihydrogen cation is one of the most abundant ions in the universe.
In chemistry, a dihydrogen bond is a kind of hydrogen bond, an interaction between a metal hydride bond and an OH or NH group or other proton donor. With a van der Waals radius of 1.2 Å, hydrogen atoms do not usually approach other hydrogen atoms closer than 2.4 Å. Close approaches near 1.8 Å, are, however, characteristic of dihydrogen ...