Zobrazeno 1 - 10
of 27
pro vyhledávání: '"77"'
Publikováno v:
The Journal of Physical Chemistry. 98:1044-1048
Photoinduced electron transfer from (alkoxyphenyl)triphenylporphyrins (C[sub n]OPTPP) to the interface water of anionic aerosol dioctyl- (AOT) and cationic cetytrimethylammonium bromide/alcohol (CTAB/ROH) reverse micelles at 77 K produces paramagneti
Autor:
John R. Miller
Publikováno v:
The Journal of Physical Chemistry. 82:767-774
The kinetics of reactions of several electron acceptors with trapped electrons in alcohol glasses at 77 K have been studied from 10/sup -7/ to 10/sup 2/ s by pulse radiolysis. In EtOH glass, where the traps progressively deepen with time, weak accept
Publikováno v:
The Journal of Physical Chemistry. 82:1901-1907
Electron transfer probabilities of solvated electrons were determined by optical absorption measurements in ethanol at 77 K. Large variations in the electron transfer probabilities were recognized for various kinds of acceptors, being related to the
Publikováno v:
Scopus-Elsevier
sec-Butyl chloride glasses containing amines were pulse radiolyzed at 77 K, and the time change of matrix holes was monitored over the time range of 3 ..mu..s to 1.7 s. Similar observation was made for glasses containing both amine and excess bipheny
Publikováno v:
Scopus-Elsevier
The time evolution of optical absorptions of cationic species in sec-butyl chloride glasses at 77 K was observed over the range of 10/sup -5/ to 1 s after irradiation with electron pulses. A band tail newly found at wavelengths shorter than 420 nm in
Publikováno v:
The Journal of Physical Chemistry. 98:4982-4989
The photophysical properties of an oblique bisporphyrin, comprising zinc(II) and gold (III) porphyrins separated by a 2,7-diphenyl-1,10-phenanthroline spacer moiety, have been measured in a low-temperature ethanol glass. Comparison with the propertie
Publikováno v:
The Journal of Physical Chemistry. 95:3379-3383
The kinetics and relative yields of the two decay pathways of the initially observed transient state (D{sup {plus minus}}) in photosynthetic reaction centers from the His{sup M200} {yields} Leu mutant of Rhodobacter capsulatus have been studied at 28
Publikováno v:
The Journal of Physical Chemistry. 89:5689-5694
Photoformation of O/sub 2//sup -/ and nitrogen-containing radicals on titanium oxide anchored onto porous Vycor glass has been studied by using ESR and isotopically labeled compounds. UV irradiation of the anchored catalyst at 77 K in the presence of
Publikováno v:
The Journal of Physical Chemistry. 87:3368-3370
Etude a temperature ambiante et a 77 K de la luminescence des dispersions de CdS et de la synthese des echantillons colloidaux de CdS. Durees de vie 0,5μs a 77 K. Discussion des proprietes de luminescence et rendement de transfert d'electron photoch
Publikováno v:
The Journal of Physical Chemistry. 100:4538-4545
Surface complexation of colloidal titanium dioxide nanoparticles (40−60 A) with cysteine was investigated by electron paramagnetic resonance (EPR) and infrared (diffuse reflectance infrared Fourier transform−DRIFT) spectroscopies. Cysteine was fo