Bonding in Low-Coordinated Organoarsenic and Organoantimony Compounds: A Threshold Photoelectron Spectroscopic Investigation.
Chemistry
; 29(35): e202300637, 2023 Jun 22.
Article
en En
| MEDLINE
| ID: mdl-36994844
ABSTRACT
Methyl and methylene compounds of arsenic and antimony have been studied by photoelectron photoion coincidence spectroscopy to investigate their relative stability. While for As both HAs=CH2 , As-CH3 and the methylene compound As=CH2 are identified in the spectrum, the only Sb compound observed is Sb-CH3 . Thus, there is a step in the main groupâ
15 between As and Sb, regarding the relative stability of the methyl compounds. Ionisation energies, vibrational frequencies and spin-orbit splittings were determined for the methyl compound from photoion mass-selected photoelectron spectra. Although the spectroscopic results for organoantimony resemble those for the previously investigated bismuth compounds, EPR spectroscopic experiments indicate a far lower tendency for methyl transfer for Sb(CH3 )3 compared to Bi(CH3 )3 . This study concludes investigations on low-valent organopnictogen compounds.
Palabras clave
Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Arsénico
/
Antimonio
Idioma:
En
Revista:
Chemistry
Asunto de la revista:
QUIMICA
Año:
2023
Tipo del documento:
Article
País de afiliación:
Alemania