The ultraviolet photochemistry of diacetylene: Direct detection of primary products of the metastable C4H* 2+ C4H2 reaction

RE Bandy, C Lakshminarayan, RK Frost…

Index: Bandy, Ralph E.; Lakshminarayan, Chitra; Frost, Rex K.; Zwier, Timothy S. Journal of Chemical Physics, 1993 , vol. 98, # 7 p. 5362 - 5374

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Citation Number: 47

Abstract

The products of diacetylene's ultraviolet photochemistry over the 245–220 nm region are directly determined for the first time. At these wavelengths, the photochemistry is thought to proceed from a metastable excited state of C4H2 rather than by direct photolysis. The experimental method employs a small reaction tube attached to a pulsed nozzle. C4H2 is excited within the reaction tube where collisions of C4H* 2 with C4H2 form products which ...