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On the relationship between fluorescence and molecular geometry. Two crystal structures of 10,10'-ethanediylidenedianthrone

✍ Scribed by Hans-Dieter Becker; Bengt Karlsson; Anne Marie Pilotti

Publisher: Elsevier Science
Year: 1976
Tongue: English
Weight: 402 KB
Volume: 44
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(76)80735-x

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✦ Synopsis

Dinnthronylidcne cth.mc crystalh7cs m three modifications of drastically dlffcrcnt ~lrwrec~ncc effictency-II: the strongly fluorcswnt modlflcntwn, excirner formatmn war found to be due to the 3.41 /\ spacing bctwccn parailcl stncked aromatic rings. The I.lck of cmwion from the non-fluorcsccnt rnodlfication may bc attributable to both more pronounced deviation from molecular planarity ,md mtramoleculdr qucncbing due to carbonyl group-methylidene double bond interaction.

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