𝔖 Bobbio Scriptorium
✦   LIBER   ✦

4-N,N-dimethylaminobenzonitrile: the absence of a∗ fluorescence under jet-cooled conditions

✍ Scribed by Elizabeth M. Gibson; Anita C. Jones; David Philips

Publisher
Elsevier Science
Year
1987
Tongue
English
Weight
605 KB
Volume
136
Category
Article
ISSN
0009-2614

No coin nor oath required. For personal study only.

✦ Synopsis

Excitation and dispersed fluorescence spectra and fluorescence lifetimes of jet-cooled 4-N,Ndimethylaminobenzonitrile (DMABN) and its van der Waals complex with methanol are reported. Neither the bare molecule nor the monosolvated complex exhibits the anomalous a* fluorescence seen in polar solution. Multiple solvation of DMABN with methanol resulted in a dramatic reduction in fluorescence quantum yield which can be interpreted in terms of formation of an a* state which is non-emissive under jet-cooled conditions.

📜 SIMILAR VOLUMES

Laser-induced-fluorescence spectroscopy
Laser-induced-fluorescence spectroscopy of the jet-cooled dimer of N-ethylcarbazole
✍ R. Howell; A.G. Taylor; D. Phillips 📂 Article 📅 1991 🏛 Elsevier Science 🌐 English ⚖ 530 KB

A laser-induced-fluorescence (LIF) investigation of the jet-cooled dimer of the aromatic molecule N-ethylcarbazole is presented. The dimer behaves essentially as a perturbed monomer. The origin is shifted bathochromically some 606.8 cm-' relative to that of the monomer, and this can be explained in

On a possible mechanism of the multiple
On a possible mechanism of the multiple fluorescence of p-N, N-dimethylaminobenzonitrile and related compounds
✍ Wolfgang Rettig; Vlasta Bonačić-Koutecký 📂 Article 📅 1979 🏛 Elsevier Science 🌐 English ⚖ 653 KB

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 th

The LIF spectra and the structure of jet
The LIF spectra and the structure of jet-cooled 4-(9-anthryl)-N,N-dimethylaniline (ADMA)
✍ Okitsugu Kajimoto; Shinji Hayami; Haruo Shizuka 📂 Article 📅 1991 🏛 Elsevier Science 🌐 English ⚖ 267 KB

The LIF spectra of (9-anthryl)dimethylaniline (ADMA) were obtained in a jet-cooled condition. The O-O band appears as a train of complex peaks ranging from 370 to 380 nm with decreasing intensity towards longer wavelength. The analysis of these peaks reveals that the equilibrium angle between the an

The Torsion–Inversion Energy Levels in t
The Torsion–Inversion Energy Levels in theS1(n, π*) Electronic State of Acetaldehyde from High-Resolution Jet-Cooled Fluorescence Excitation Spectroscopy
✍ H. Liu; E.C. Lim; C. Muñoz-Caro; A. Niño; R.H. Judge; D.C. Moule 📂 Article 📅 1996 🏛 Elsevier Science 🌐 English ⚖ 601 KB

The laser-induced fluorescence excitation spectrum (LIF) of acetaldehyde that results from the emission from the S 1 (n, p\*) electronic state has been observed under very high resolution with a CW pulse-amplified laser under jet-cooled conditions. The origins of seven bands were determined by rotat