Imidogen
Inorganic radical with the chemical formula NH
Imidogen is an inorganic compound with the chemical formula NH. Like other simple radicals, it is highly reactive and consequently short-lived except as a dilute gas. Its behavior depends on its spin multiplicity.
Production and properties
Imidogen can be generated by electrical discharge in an atmosphere of ammonia.
Imidogen has a large rotational splitting and a weak spin–spin interaction, therefore it will be less likely to undergo collision-induced Zeeman transitions. Ground-state imidogen can be magnetically trapped using buffer-gas loading from a molecular beam.
The ground state of imidogen is a triplet, with a singlet excited state only slightly higher in energy.
The first excited state (a1Δ) has a long lifetime as its relaxation to ground state (X3Σ−) is spin-forbidden. Imidogen undergoes collision-induced intersystem crossing.
Reactivity
Ignoring hydrogen atoms, imidogen is isoelectronic with carbene (CH2) and oxygen (O) atoms, and it exhibits comparable reactivity. The first excited state can be detected by laser-induced fluorescence (LIF).
This brief starts where responsible research should: with the source description of “Imidogen” as inorganic radical with the chemical formula NH. Everything that follows is an evidence route, not borrowed authority.
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This entry incorporates text from “Imidogen” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.