File(s) not publicly available
Metal vapour synthesis and conformational analysis of bis(2-trimethylsilyl-3-methyl-phosphobenzene
presentation
posted on 2023-06-07, 23:55 authored by Geoff Cloke, D Charmichael, A R Dias, A M Galvão, Ferreira da Silva, J LReaction between chromium and 2-trimethyl-silyl-3-methylphosphobenzene {C5PH3[Si (CH3)3](CH3)} vapours using metal vapour synthesis techniques produces an extremely air-sensitive yellow oil at room temperature; after sublimation and characterization by mass spectrometry and 1H and 31P NMR spectroscopy this oil proves to be a mixture of two isomers, which various techniques failed to separate. With the impossibility of obtaining crystal structures, we have used evidence from the NMR data that one of the isomers shows a long-distance P-P interaction, and extended Huckel calculations, to access the conformations of the two isomers. The calculations show that absolute minima occur for stereochemical reasons when both trimethylsilyl groups are pointing in opposite directions.
History
Publication status
- Published
ISSN
02682605Issue
10Volume
14Page range
561-564Presentation Type
- paper
Event name
Published in: Applied Organometallic ChemistryEvent type
conferenceDepartment affiliated with
- Chemistry Publications
Full text available
- No
Peer reviewed?
- Yes
Legacy Posted Date
2012-02-06Usage metrics
Categories
No categories selectedKeywords
Licence
Exports
RefWorks
BibTeX
Ref. manager
Endnote
DataCite
NLM
DC