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Die Wechselwirkung zwischen Walsh ‐ und π‐Orbitalen im 7‐Cyclopropyliden‐norbornadien
Author(s) -
Brogli F.,
Heilbronner E.,
Ipaktschi J.
Publication year - 1972
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.19720550721
Subject(s) - chemistry , antisymmetric relation , norbornadiene , crystallography , pi , order (exchange) , stereochemistry , physics , mathematical physics , biochemistry , finance , economics , catalysis
Abstract The qualitative analysis of the PE.‐spectrum of 7‐cyclopropylidene‐norbornadiene ( 3 ) shows that the ‘through‐space’ interaction of the e A ‐ Walsh orbital with the antisymmetric linear combination \documentclass{article}\pagestyle{empty}\begin{document}$ {{\pi _ - = (\pi _a - \pi _b)} \mathord{\left/ {\vphantom {{\pi _ - = (\pi _a - \pi _b)} {\sqrt 2}}} \right. \kern-\nulldelimiterspace} {\sqrt 2}} $\end{document} of the two π‐orbitals in 3 is of the same order as the analogous interaction between π‐ and the π‐orbital of the exocyclic double bond in 7‐isopropylidene‐norbornadiene ( 2 ).