๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Magnetic field effects on the fluorescence of intramolecular electron-donor-acceptor systems

โœ Scribed by Yoshifumi Tanimoto; Natsuo Okada; Michiya Itoh; Kaoru Iwai; Kayoko Sugioka; Fukuo Takemura; Ryoichi Nakagaki; Saburo Nagakura


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

No coin nor oath required. For personal study only.

โœฆ Synopsis


The external magnetic field effects on the exciplex fluorescence of a-( 4-dimethylaminophenyI)-o-( 9-phenanthryl)alkanes have been studied by photostationary, time-resolved, and magnetic field modulation fluorescence spectroscopy. The singlet-triplet degeneracy of the radical ion pair is suggested to occur at a methylene chain length of about ten.


๐Ÿ“œ SIMILAR VOLUMES


Effects of Acceptors on the Electronic a
โœ Wen-Ya Lee; Kai-Fang Cheng; Then-Fu Wang; Chu-Chen Chueh; Wen-Chang Chen; Chih-S ๐Ÿ“‚ Article ๐Ÿ“… 2007 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 240 KB

## Abstract In this study, four fluoreneโ€based conjugated copolymers were synthesized to explore the acceptor effects on the electronic and optoelectronic properties. The studied polymers were poly{[2,7โ€(9,9โ€dihexylfluorene)]โ€__alt__โ€[2,2โ€ฒ:5,2โ€ณโ€terthiophene]} (**PFTT**) and its derivatives of poly{

Magnetic field effects on the intramolec
โœ Yoshifumi Tanimoto; Masanobu Takashima; Kiyoshi Hasegawa; Michiya Itoh ๐Ÿ“‚ Article ๐Ÿ“… 1987 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 508 KB

The magnetic field effect on the intramolecular hydrogen abstraction of a-(xanthone-2-carbonyloxy)-w-(xanthene-2-carbonyloxy)alkanes (X0-n-XH, n=2-12), in bichromophoric compounds, was studied using laser flash photolysis. Excited triplet X0 abstracts a hydrogen atom from the XH moiety, generating a

Magnetic field effect on the fluorescenc
โœ A. Matsuzaki; S. Nagakura ๐Ÿ“‚ Article ๐Ÿ“… 1976 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 348 KB

Fluorcsccncc from the 'A, state o~glyosal is quenched by a magnetic field and the prc-cxponential Factor of phosphorcsccncc from lhc 3A, state increases with increasing mugetic field. These finding arc csplained by the cnhancemcnt of inrmmolcculor intersystcm crossing by the mugnctic field.

Medium effects on the properties of chem
โœ B. Mennucci; R. Cammi; J. Tomasi ๐Ÿ“‚ Article ๐Ÿ“… 1999 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 369 KB ๐Ÿ‘ 2 views

acceptor groups but have different structures. The analysis of medium effects on these and some other related molecules is here centered on water as solvent. Different ลฝ . computational approaches are exploited: CPHF and SOS for hyper polarizabilities, GIAO and LORG for magnetic shieldings, and GIAO

Effect of a high magnetic field on the d
โœ Hong Cao; Katsuji Miyata; Tomoyuki Tamura; Yoshihisa Fujiwara; Yoshifumi Tanimot ๐Ÿ“‚ Article ๐Ÿ“… 1995 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 332 KB

The effect of a high magnetic field ( < 14 T) on the intramolecular exciplex fluorescence generated from a phenanthrene and dimethylaniline chain-linked molecule is studied in acetonitrile. On increasing the magnetic field from zero to = 1 T, the fluorescence decay rate decreases steeply and then in