A 2-QUANTUM PROCESS IN THE PHOTOCHEMISTRY OF THE OCTACYANOTUNGSTATE(V) ION IN AQUEOUS-SOLUTION
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 1010-6030Full text not available from this repository.
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|
|Official Date:||January 1991|
|Number of Pages:||13|
|Page Range:||pp. 283-295|
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