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On a possible mechanism of the multiple fluorescence of p-N, N-dimethylaminobenzonitrile and related compounds

✍ Scribed by Wolfgang Rettig; Vlasta Bonačić-Koutecký

Publisher
Elsevier Science
Year
1979
Tongue
English
Weight
653 KB
Volume
62
Category
Article
ISSN
0009-2614

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✦ Synopsis

Xb initio and CNDO!s calcul~tions support a mechanism ~hich in! oives d geotnetricxl relaation (I e , thc tu ist of thc bond betlieen the ring and NRz o_roup) for the appearancc of thc long \a\elength tluorescence (F,) obserted m somc psubstitutrd dimethylanilines. For the twïsted peomerries of the dimrth~kmino compounds a high clxqe transfer occurb in i loxx l'ing excitcd tA stAte for \xhich this grometrical relaution seeros to be encr_rcticall~ fa~ourrtbk The pol.wzcd mture of such .I 'A state mï$t be responstble for the streng solvent depcndence of thr F, fluoresccncc. \rohtme 62, number 1

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Dipole moments of singlet and triplet ex
Dipole moments of singlet and triplet excited states of 4-N,N-dimethylaminobenzonitrile and related compounds and of their solute—solvent exciplexes
✍ Robert J. Visser; Petra C.M. Weisenborn; Cyril A.G.O. Varma; Mathijs P. De Haas; 📂 Article 📅 1984 🏛 Elsevier Science 🌐 English ⚖ 803 KB

Changes in dielectric loss at microwave frequencies resulting from UV laser excitation of solutions of 4-N,N-dimethyfaminobsnzonitrile and some of its derivatives in cyclohexane and in lfl-dioxane have been studied. The changes are due to differences between the dipole moments of the sohste in the g