title: Ultraviolet photodissociation of iodine monochloride (ICl) at 235, 250, and 265 nm.
abstract: ICl photolysis in the ultraviolet region of the spectrum (235-265 nm) is studied using the Slice Imaging technique. The Cl∗((2)P(1/2))/Cl((2)P(3/2)) and the I∗((2)P(1/2))/I((2)P(3/2)) branching ratio between the I((2)P(3/2)) + Cl((2)P(3/2))∕Cl∗((2)P(1/2)) and I∗((2)P(1/2)) + Cl((2)P(3∕/2))∕Cl∗((2)P(1/2)) channels is extracted from the respective iodine and chlorine photofragment images. We find that ground state chlorine atoms (Cl((2)P(3/2))) are formed nearly exclusively with excited state iodine atoms (I∗((2)P(1/2))), while excited spin-orbit chlorine atoms (Cl∗((2)P(1/2))) are concurrently produced only with ground state iodine atoms (I((2)P(3/2))). We conclude that photolysis of ICl in this UV region is a relatively "clean" source of spin-orbit excited chlorine atoms that can be used in crossed molecular beam experiments.
authors: Institute of Electronic Structure and Laser, Foundation of Research and Technology Hellas, Iraklion 71110, Greece.
authors: N
authors: N
authors: Diamantopoulou
authors: A
authors: A
authors: Kartakoulis
authors: P
authors: P
authors: Glodic
authors: Theofanis N
authors: TN
authors: Kitsopoulos
authors: Peter C
authors: PC
authors: Samartzis