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- W807856656 abstract "The photolysis of bromacetylene is examined by means of vacuum ultraviolet flash photolysis-kinetic spectroscopy, with attention given to the production of Br atoms in the 2P 0 3/2 and 2P 0 1/2 states, the production of HBr, and UV absorption attributable to the ethynyl radical. Although Br(2P 0 1/2) and Br(2P 0 3/2) were both directly observed at the shortest delay time after the flash, strongly indicating the presence of the ethynyl radical, transient absorption by C2H was not detected in the range 125 to 180 nm. Quenching rate constants for the decay of the 2P 0 1/2 state of Br, which is observed to form concurrently with the ground state, are derived for quenching by He, CH2Br, CF4, and D2 from the pseudo-first-order decay rates. HBr was observed as a secondary photolysis product, and a model of its formation by the exothermic reaction of ground-state atoms with C2HBR, coupled with the secondary production of Br atoms, is found to agree well with the experiment." @default.
- W807856656 created "2016-06-24" @default.
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- W807856656 date "1979-10-18" @default.
- W807856656 modified "2023-09-23" @default.
- W807856656 title "Photochemistry of bromoacetylene - Formation of HBr and quenching of excited Br/4 2P 0 1/2/" @default.
- W807856656 hasPublicationYear "1979" @default.
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