π-Electronic structure and charge-transfer spectra of π-complexes of monosubstituted 1-phenyl-3,3-dimethyltriazenes

Nepraš, Miloš; Titz, M.; Zvěřina, V.; Matrka, M.

doi:10.1135/cccc19762489

Cited by 3 publications

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“…1 (1981) -Nr. 15 The formerly reported calculations on l-phenyl-3,3-dimethyltriazenes used the HMO method [9]. Also, models of a series of heterocyclic unsymmetrical triazenes were successfully treated by the PPP method [lo].…”

Section: I72mentioning

confidence: 99%

Electronic Absorption and Emission Spectra of 1, 3‐Diaryltriazenes

Páarkányi

Vernin

Julliard

et al. 1981

Helvetica Chimica Acta

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SummaryThe Pariser-Purr-Pople (PPP) type LCI-SCF-MO calculations were used to study the models of 1,3-diphenyltriazene (l), 1,3-bis (3-pyridy1)triazene (2), 1,3-bis (2,4-dichloropheny1)triazene (3), and 1,3-bis (4-ethoxycarbony1)triazene (4). The results of the calculations were compared with the experimental electronic absorption and emission (fluorescence, phosphorescence) spectra of these compounds.Introduction. -In several previously published papers on triazenes, electronic spectra were utilized to study their tautomeric structures [ 1-61. Our interest in the photochemical behavior of 1,3-diaryltriazenes [7] [8] has prompted us to investigate their electronic absorption and emission spectra and to compare the experimental results with the calculated transitions obtained by using the PPP (Pariser-ParrPopZe, LCI-SCF-MO) method. The four compounds selected for this study were 1,3-diphenyltriazene (diazoaminobenzene) (l), 1,3-bis (3-pyridy1)triazene (2), 1,3-bis (2,4-dichlorophenyl)triazene (3), and 1,3-bis (4-ethoxycarbony1)triazene (4).

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Section: I72mentioning

confidence: 99%