E-2-benzylidenebenzocyclanones. II. IR and mass spectrometric investigations

A series of E-2-benzylideneindanones (a) -tetralones (b) and -benzosuberones (c) with OCH 3 ( 2– 4), NO 2 ( 5– 7) and F ( 8– 10) substituents in ortho, meta or para position was studied by IR and mass spectrometry. The most important IR bands were assigned and stated correlations between some freque...

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Bibliographic Details
Published inJournal of molecular structure Vol. 520; no. 1; pp. 97 - 102
Main Authors Tarczay, Gy, Vékey, K, Ludányi, K, Perjési, P, Sohár, P
Format Journal Article
LanguageEnglish
Published Elsevier B.V 14.03.2000
Subjects
E-2-benzylidenebenzocyclanones
IR and mass spectrometry
IR and mass spectrometry
E-2-benzylidenebenzocyclanones
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Summary:A series of E-2-benzylideneindanones (a) -tetralones (b) and -benzosuberones (c) with OCH 3 ( 2– 4), NO 2 ( 5– 7) and F ( 8– 10) substituents in ortho, meta or para position was studied by IR and mass spectrometry. The most important IR bands were assigned and stated correlations between some frequencies and the stereostructure or conjugation feature of the molecules investigated. IR spectra were also analyzed in order to find frequencies characteristic of the size of the alkanone ring. The mass spectrometric investigation aimed at determining fragmentation pathways and finding correlations between them and the ring size of the alkanone ring or the position of the substituents.
ISSN:0022-2860
1872-8014
DOI:10.1016/S0022-2860(99)00330-0