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Triplet-triplet absorption in benzene

โœ Scribed by A.B. Sannigrahi

Book ID
108373977
Publisher
Elsevier Science
Year
1970
Tongue
French
Weight
368 KB
Volume
26
Category
Article
ISSN
0040-4020

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Tripletโ€”triplet absorption of benzene an
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The CNDO,5 method of de1 Bent and Jaff6 has been applied to the study of the triplet-triplet absor;?tion of ;eq;jne and omc methylated derivatives. The fist allowed triplet-triplet transition in benzene is assigned to the J%g + 3Bd transition.

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Biphenyl in a cooled alcoholic solution shows structured TT absorption bands, weak in the visible and strong in the UV with a maximum at 3'7OOA and en Er= 50 000 litre mole-1 cm-I. Calculations using the PPP SCF method with a large configuration interaction are done using a planar model. The influen

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Triplet-triplet absorption of biphenylene was sensitized by naphthalene. A band is observed at 29 500 cm-l and is assigned to a predicted 3B& + 3B& transition. Triplet biphenylene has a lifetime of 100 psec in solution. Nonradiative processes are thought to affect mainly the first singlet state of b