✦ LIBER ✦

On the valence excited states of conjugated dienes

✍ Scribed by Ruth McDiarmid; John P. Doering

Publisher: Elsevier Science
Year: 1982
Tongue: English
Weight: 392 KB
Volume: 88
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(82)85018-5

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✦ Synopsis

Clcctron Impact spectroscoprc results are reported for the lowest-znergy Ag and 6, valence excited states of several ConJUgated dlenes. In alt CSS, the B, state was found to be below the Ag state. The Bu state of the s-crs compounds ~3s found ro be a05 eV tower in energy than that of the s4xzn.s compounds Correlations of these results with those obtamed for seven1 s-trims and s-cis polyenes leads to a new possible interpretation of the state observed below the Bu state in intcr-me&ate length polyenes. specdied. For unhmdered molecules, spectroscopic data mdlcate that the molecules are in the s-tram conformation.

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