The observation of the dual luminescence of the title compound in very concentrated solutions in specially dried acetonitrile rules out water impurities as being at the origin of the anomalous emission. Water produces a quenching of the anomalous emission as well as a red-shift of the emission spect
Dual fluorescence of 4-N,N-dimethylaminopyridine. Role of hydrogen-bonded complex in the ground state
β Scribed by C. Cazeau-Dubroca; G. Nouchi; M. Ben Brahim; M. Pesquer; D. Grose; Ph. Cazeau
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- English
- Weight
- 733 KB
- Volume
- 80
- Category
- Article
- ISSN
- 1010-6030
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The dual luminescence of 4-N,N-dimethylaminobenzonitrile (DMABN) has been observed in 1-fluoropentane; only the normal emission is observed in hexane and in perfluorohexane. The solvent does not form exciplexes with DMABN and acts only by its dielectric stabilization of the twisted rotamer of DMABN.
Various gold(I) complexes of aliphatic amines have been hydrogen bonds involving the N-H functions, and partly to aurophilic interactions. Analysis of these secondary contacts prepared by the reaction of chloro(tetrahydrothiophene)gold(I) with the respective amines. The stability of these suggests a
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