Collisional quenching of indium (5p2 4P1/2) and indium (6p 2P) by Ar, H2, D2, N2, and CH4

Abstract

Single crystal and magnetic Mössbauer studies on [(C6H5)4P][(C6H5CH2)-(CH3)3N][Cl2FeS2MoS2] J. Chem. Phys. 82, 3594 (1985); 10.1063/1.448917 Collisional quenching of excited iodine atoms (5p 5 2 P 1/2) by Cl2 in a flow system J. Chem. Phys. 82, 2590 (1985); 10.1063/1.448309Collisional quenching of excited iodine atoms I(5p 5 2 P 1/2) by selected molecules Collisional quenching of In(5p' 'P 112) and In(6p 'P) by Ar, H" D" N" and CH. has been measured by laser pumping of the 5p' 'Pl/2leveI. The quenching cross sections for 5p' 'P II , range from 1.6X 10-16 em' for Ar to 37X 10-16 em' for H 2 • The cross sections for quenching the 6p 2p state range from 0.96X 10-16 cm 2 for Ar to 18X 10-16 cm 2 for H 2 • The radiative lifetimes of the 5p2 'P 1I2 and 6p 2p state were found to be 950 and 104 ns.Population ratios measured under steady-state conditions show that much of the excited-state population resides in the 6s 's II' level after excitation of the 5p"P II' or 5d 2D levels.