Anomalously spin-polarized solvated electrons produced by photoejection from N,N,N',N'-tetramethyl-pphenylenediamine in 2-propanol were detected by using a time-resolved ESR technique. The emission/absorption pattern of the CIDEP spectrum was observed immediately after laser excitation; thereafter i
Magnetic field effects on photoionization of N,N,N′,N′-tetramethyl-p-phenylenediamine in 2-propanol
✍ Scribed by Yoshifumi Tanimoto; Takeshi Watanabe; Ryoichi Nakagaki; Mitsuo Hiramatsu; Saburo Nagakura
- Publisher
- Elsevier Science
- Year
- 1985
- Tongue
- English
- Weight
- 501 KB
- Volume
- 116
- Category
- Article
- ISSN
- 0009-2614
No coin nor oath required. For personal study only.
✦ Synopsis
Magnetic field effects on the photoionization yield of N.N,N',N'-tetramethyl-p-phenylenediamine in deaerated 2-propanol have been studied by transient photoconductivity measurements. The photocurrent increases by about 15% in the presence of a magnetic field (720 mT). The results are interpreted in terms of a radical pair madeI_ ' Adjunct Associate professor of IMS (1983). 2 Also at Fact&y-of PGrm~ceutical Scienccs,~Kanazawa Uxii-_vmity, Takara-ma&i, Kanazawa 924 Japan. 3 vi&ting research felldw 'from Hamamatsu Photon& =I&, Ichino-cho. H amnmntsu 435, Japan_
📜 SIMILAR VOLUMES
Tune-resolved resonance Raman spectra of the lowest trlplet smte of N.N,N'.N'-tetr~cthyl+phenylcnedumtnc fT~p~) were observed in solution at room tcmperaturc 4 new Raman band obscrvcd at 1530 cm-' was arslgned to
The temperature dependence of the photoionization process of N,N,N',N'-tetramethyl-pphenylenediamine (TMPD) in acetonitrile has been investigated by picosecond dye laser photolysis measurements. The ionization rate from the fluorescence state shows an Arrhenius-type relation with an activation energ
Optical spectra (1 to 6 eV) of the neutral electron donor-acceptor complex TMPD-CA have been obtained in different solvents includins polar ones such as acetonitie\_ The optical spectra. the dielectric constant and the ESR absorption have been studied in detail as a function of temperature, in the r
The magnetic field effect on the monophotonic ionization of N,N,N',N'-tetramethylbenzidine (TBM) in propionitrile and nbutyronitrile has been studied by microsecond transient absorption measurements. The structure of the initially formed ion pair which recombines to form the triplet state of TMB and
The effect of a magnetic field on the escape of alkoxyl radicals from the solvent ca8e in n-propanol at 213 I< has been investigated. The alkoxyl radicals were obtained by photooxidation of n-propanol with the aid of p-beruoquinone m the triplet state. The radicals that escaped from the cage were tr