UNSPECIFIED (1991) A 2-QUANTUM PROCESS IN THE PHOTOCHEMISTRY OF THE OCTACYANOTUNGSTATE(V) ION IN AQUEOUS-SOLUTION. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 55 (3). pp. 283-295. ISSN 1010-6030

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Abstract

The high intensity photolysis (360 nm > lambda-irr > 310 nm) of aqueous [W(CN)8]3- ions leads to products not formed under normal intensities, i.e. [W(VI)O(CN)6]2- ions and a previously reported, highly coloured species (lambda-max = 537 nm) (denoted as P-537) which could not be isolated. A detailed quantum yield study reveals that the new photochemical channel is characterized by an I2 dependence (I is the intensity of absorbed light), i.e. it is a two-quantum process and involves an absorbing intermediate state giving access to a high energy state. It is also found that the same high energy channel is reached when lambda-irr < 230 nm, reaching a quantum yield of about 0.1 at 200 nm.

Item Type:	Journal Article
Subjects:	Q Science > QD Chemistry
Journal or Publication Title:	JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
Publisher:	ELSEVIER SCIENCE SA LAUSANNE
ISSN:	1010-6030
Date:	January 1991
Volume:	55
Number:	3
Number of Pages:	13
Page Range:	pp. 283-295
Publication Status:	Published
URI:	http://wrap.warwick.ac.uk/id/eprint/22884

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