Published October 1982 | Version v1
Report Metadata-only

Kinetics of the photoprotolytic reaction in a solution of coumarin dye

Creators

Description

The radiation kinetics of various ionic forms of the conmarin dye, aesculin, in ethanol under addition of acid was studied with the aid of a photoelectric rapid convertor (probably a photomultiplier with coupled oscillograph). The sweeps of radiation intensity were determined for sub-nanosecond resolution time. It was shown that the proton addition reaction from solution can be described by a simple one-step scheme. Rate constants for the photoprotolytic reaction were calculated from the measured time dependences of radiation intensity. (orig.)

Availability note (English)

Available from Kernforschungszentrum Karlsruhe G.m.b.H. (Germany, F.R.). Stabsabteilung Internationale Beziehungen.

Abstract (German)

Mit Hilfe eines elektronenoptischen Schnellwandlers wird die Strahlungskinetik verschiedener Ionenformen von Aesculin-Farbstoff in Ethanol unter Saeurezusatz untersucht. Es wurden die Zeitablenkungen der Strahlungsintensitaet mit Subnanosekunden-Aufloesung ermittelt. Es wurde gezeigt, dass die Reaktion der Protonenanlagerung aus der Loesung durch ein einfaches Einstufenschema beschrieben wird. Nach den gemessenen Zeitabhaengigkeiten der Strahlungsintensitaet wurden die Geschwindigkeitskonstanten der photoprotolytischen Reaktion berechnet. (orig.)

Additional details

Additional titles

Original title (German)
Kinetica fotoprotoliticheskoi reaktsii v rastvore kumarinovogo krasitleya. Kinetik der photoprotolytischen Reaktion in einer Cumarin-Farbstoff-Loesung

Publishing Information

Imprint Pagination
13 p.
Report number
KFK-tr--687

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
15066519
Subject category
S38: RADIATION CHEMISTRY, RADIOCHEMISTRY AND NUCLEAR CHEMISTRY;
Resource subtype / Literary indicator
Non-conventional Literature
Descriptors DEI
COUMARIN; DYES; GAS LASERS; LUMINESCENCE; OPTICAL SYSTEMS; PHOTOELECTRON COUNTING; PHOTOLYSIS; REACTION KINETICS; SOLUTIONS
Descriptors DEC
AMPLIFIERS; ANTICOAGULANTS; CHEMICAL REACTIONS; COUNTING TECHNIQUES; DECOMPOSITION; DISPERSIONS; DRUGS; EMISSION; EQUIPMENT; ESTERS; HEMATOLOGIC AGENTS; HETEROCYCLIC COMPOUNDS; HOMOGENEOUS MIXTURES; KINETICS; LACTONES; LASERS; MIXTURES; ORGANIC COMPOUNDS; ORGANIC OXYGEN COMPOUNDS; PHOTON EMISSION; PYRANS

Optional Information

Notes
Translated from Russian: Kinetika fotoprotolicheskoi reaktisii v restvore kumarinovogo krasitelya. Originally published in Opt. Spektrosk. (1982) v. 53(1) p. 73-78.