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Molecular complex formation between crown ether and π-acceptors

✍ Scribed by Ahmed M. Nour El-Din

Publisher
Elsevier Science
Year
1986
Tongue
English
Weight
364 KB
Volume
42
Category
Article
ISSN
1386-1425

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✦ Synopsis

A spectrophotometrtc study was made of the formatron of charge-transfer complexes between benzo-18crown-6 ether and some x-acceptors ur methylene chlorrde at 25°C The spectroscoptc data mdtcate that the PhG-CHr-CH,-group IS responsible for the complexatron wrth n-acceptors The benzo-18crown-6 ether-2,3-dtchloro-5,6dtcyanobenzoqmnone and benzo-18crown-6 ether-tetracyanoethylene complexes were Isolated m a crystalhne form and charactensed JOB'S method shows that the stotchrometnc ratro of the complexes IS 1 1 The effect of KCI salt on the formatron and stabrhty of the complexes IS dtscussed

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