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The Interaction of Walsh ‐Orbitols in Diademane and Related Hydrocarbons
Author(s) -
Heilbronner Edgar,
Gleiter Rolf,
Hoshi Toshihiko,
de Meijere Armin
Publication year - 1973
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.19730560515
Subject(s) - chemistry , cyclopropane , heptane , bicyclic molecule , octane , spectral line , conjugated system , atomic orbital , stereochemistry , computational chemistry , ring (chemistry) , organic chemistry , electron , quantum mechanics , physics , polymer
To obtain further information concerning the interaction between Walsh ‐orbitols of ‘conjugated’ cyclopropane rings, the photoelectron spectra of the following compounds have been recorded: bicyclo[4.1.0]heptane 1 , cis ‐ and trans ‐tricyclo[5.1.0 3, 5 ]octane 2, 3 , diademane 4 , trans ‐pentacyclo[3.3.2.0 2, 9 .0 4, 10 , 0 6, 8 ]decan 5 and bicyclo[4.1.0]heptene‐2 6 . The first bands in the PE.‐spectra of these compounds have been assigned on the basis of a ZDO HMO‐approximation. For 2 and 4 the value for resonance integral between linked 2p atomic orbitals of two adjacent eclipsed cyclopropane rings is found to be −1.73 eV.
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