Hydrogen-Bonded Complex of the Parent Phosphinidene.
Chemistry
; 30(27): e202400490, 2024 May 14.
Article
em En
| MEDLINE
| ID: mdl-38421349
ABSTRACT
The diatomic molecule PH is very reactive, and it serves as the parent compound for phosphinidenes featuring a monovalent phosphorus atom. Herein, we report the characterization and reactivity of a rare hydrogen-bonded complex of PH. Specifically, the molecular complex between PH and HCl has been generated by photolysis of chlorophosphine (H2PCl) at 254â
nm in a solid Ar-matrix at 10â
K. The IR spectrum of the complex HPâ
â
â
HCl and quantum chemical calculations at the UCCSD(T)-F12a/haTZ level consistently prove that the phosphorus atom acts as a hydrogen bond acceptor with a binding energy (D0) of -0.6â
kcal mol-1. In line with the observed absorption at 341â
nm for the binary complex, the triplet phosphinidene PH undergoes prototype H-Cl bond insertion by reformation of H2PCl upon photoexcitation at 365â
nm. However, this hydrogen-bonded complex is unstable in the presence of N2 and HCl, as both molecules prefers stronger interactions with HCl than PH in the observed complexes HPâ
â
â
HClâ
â
â
N2 and HPâ
â
â
2HCl.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Idioma:
En
Revista:
Chemistry
Ano de publicação:
2024
Tipo de documento:
Article