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Multi-centre contributions to the triplet exchange integral in some aromatic hydrocarbon crystals

✍ Scribed by A. Tiberghien; Ph. Devaux; G. Delacote

Publisher: Elsevier Science
Year: 1971
Tongue: English
Weight: 255 KB
Volume: 9
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(71)85152-7

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✦ Synopsis

The contribution of three-and four-centre integrals to tf.o neutral triplet exchange integral between molecules has been calculated for nnphthalene. enthrncene uzd tetracene crystals.

in different npproximntions. It is showrl to be compnrab!e in all cases to the contribution of the two-centre integrnls. so that the final vslue is about one iifth of the value given by these two-centre integrals.

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