Syntheses and PE‐Spectroscopic Investigations of 2,6‐ and 3,5‐Bridged 1,4‐Dimethylidenecyclohexanes | Zendy

Chou TehChang | Zendy; Lange Holger | Zendy; Gleiter Rolf | Zendy; Gögh Tibor | Zendy; Kríž Miroslav | Zendy; Pfenninger Max H. | Zendy; Valentíny Marian | Zendy; Ganter Camille | Zendy

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Syntheses and PE‐Spectroscopic Investigations of 2,6‐ and 3,5‐Bridged 1,4‐Dimethylidenecyclohexanes

Author(s) -

Chou TehChang,

Lange Holger,

Gleiter Rolf,

Gögh Tibor,

Kríž Miroslav,

Pfenninger Max H.,

Valentíny Marian,

Ganter Camille

Publication year - 1995

Publication title -

helvetica chimica acta

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.74

H-Index - 82

eISSN - 1522-2675

pISSN - 0018-019X

DOI - 10.1002/hlca.19950780809

Subject(s) - chemistry , x ray photoelectron spectroscopy , interpretation (philosophy) , spectroscopy , spectral line , stereochemistry , computational chemistry , crystallography , nuclear magnetic resonance , physics , quantum mechanics , astronomy , computer science , programming language

Three 1,4‐dimethylidenecyclohexanes, bridged in the 2,6‐ and 3,5‐positions by two ethano ( 4 ), one ethano and one propano ( 5 ), and two propano bridges ( 6 ) have been synthesized. The interaction of the two exocyclic methylidene groups has been investigated by He(I) photoelectron (PE) spectroscopy. It revealed a slightly larger energy difference (0.8 eV) for 4 and 5 as compared to the parent 1,4‐dimethylidenecyclohexane ( 7 ) (0.7 eV). The interpretation of the PE spectra was based on the comparison with PE data of related systems and with the results of semiempirical calculations on 4–6 .

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