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Bonding in Low-Coordinated Organoarsenic and Organoantimony Compounds: A Threshold Photoelectron Spectroscopic Investigation.
- Source :
-
Chemistry (Weinheim an der Bergstrasse, Germany) [Chemistry] 2023 Jun 22; Vol. 29 (35), pp. e202300637. Date of Electronic Publication: 2023 May 02. - Publication Year :
- 2023
-
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=CH <subscript>2</subscript> , As-CH <subscript>3</subscript> and the methylene compound As=CH <subscript>2</subscript> are identified in the spectrum, the only Sb compound observed is Sb-CH <subscript>3</subscript> . Thus, there is a step in the main group 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(CH <subscript>3</subscript> ) <subscript>3</subscript> compared to Bi(CH <subscript>3</subscript> ) <subscript>3</subscript> . This study concludes investigations on low-valent organopnictogen compounds.<br /> (© 2023 The Authors. Chemistry - A European Journal published by Wiley-VCH GmbH.)
- Subjects :
- Photoelectron Spectroscopy
Mass Spectrometry
Antimony chemistry
Arsenic
Subjects
Details
- Language :
- English
- ISSN :
- 1521-3765
- Volume :
- 29
- Issue :
- 35
- Database :
- MEDLINE
- Journal :
- Chemistry (Weinheim an der Bergstrasse, Germany)
- Publication Type :
- Academic Journal
- Accession number :
- 36994844
- Full Text :
- https://doi.org/10.1002/chem.202300637