DETECTION OF THE PERPENDICULAR (A)OVER-TILDE STATE TRANSITIONS OF CH3I BY IMAGING OF PHOTOFRAGMENT ANGLE-VELOCITY DISTRIBUTIONS

被引：49

作者：

HERTZ, RA

SYAGE, JA

机构：

[1] Aerospace Corporation, Los Angeles, CA 90009

来源：

JOURNAL OF CHEMICAL PHYSICS | 1994年 / 100卷 / 12期

关键词：

D O I：

10.1063/1.466679

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Photofragment angle-velocity distributions are measured in a molecular beam using a new two-dimensional imaging technique. We report on the detection of weak perpendicular transitions for CH3I (A) over tilde state photodissociation at 266 and 304 nm. The ratio of cross sections and the (3)Q(0)-(1)Q crossing probability are sigma(perpendicular to) /sigma(parallel to)=0.00-0.10 and p=0.22-0.27 at 266 nm and sigma(perpendicular to) /sigma(parallel to)=0.20-0.30 and p=0.43-0.48 at 304 nm.

引用

收藏

页码：9265 / 9268

页数：4

相关论文

共 27 条

[11] PHOTOACOUSTIC MEASUREMENTS OF PHOTOFRAGMENTATION IN CH3I [J].

HUNTER, TF ;

KRISTJANSSON, KS .

CHEMICAL PHYSICS LETTERS, 1978, 58 (02) :291-294

[12] PHOTODISSOCIATION OF CF3I AT 304 NM - EFFECTS OF PHOTON ENERGY AND CURVE CROSSING ON THE INTERNAL EXCITATION OF CF3 [J].

HWANG, HJ ;

ELSAYED, MA .

JOURNAL OF PHYSICAL CHEMISTRY, 1992, 96 (22) :8728-8735

[13] POLARIZATION DEPENDENT TRANSLATIONAL ENERGY-RELEASE OBSERVED IN THE PHOTODISSOCIATION OF C2F5I AT 304.7 NM [J].

HWANG, HJ ;

ELSAYED, MA .

JOURNAL OF CHEMICAL PHYSICS, 1991, 94 (07) :4877-4886

[14] 3-DIMENSIONAL VELOCITY ANALYSIS COMBINING ION IMAGING WITH DOPPLER SPECTROSCOPY - APPLICATION TO PHOTODISSOCIATION OF HBR AT 243-NM [J].

KINUGAWA, T ;

ARIKAWA, T .

JOURNAL OF CHEMICAL PHYSICS, 1992, 96 (06) :4801-4804

[15] PICOSECOND MONITORING OF A CHEMICAL-REACTION IN MOLECULAR-BEAMS - PHOTOFRAGMENTATION OF R-I-] R-TRANSITION-STATE + I [J].

KNEE, JL ;

KHUNDKAR, LR ;

ZEWAIL, AH .

JOURNAL OF CHEMICAL PHYSICS, 1985, 83 (04) :1996-1997

[16] EVOLUTION OF MOLECULAR DISSOCIATION THROUGH AN ELECTRONIC CURVE CROSSING - POLARIZED EMISSION-SPECTROSCOPY OF CH3I AT 266-NM [J].

LAO, KQ ;

PERSON, MD ;

XAYARIBOUN, P ;

BUTLER, LJ .

JOURNAL OF CHEMICAL PHYSICS, 1990, 92 (02) :823-841

[17] STATE-RESOLVED PHOTOFRAGMENT VELOCITY DISTRIBUTIONS BY PULSED EXTRACTION TIME-OF-FLIGHT MASS-SPECTROMETRY [J].

LOO, RO ;

HALL, GE ;

HAERRI, HP ;

HOUSTON, PL .

JOURNAL OF PHYSICAL CHEMISTRY, 1988, 92 (01) :5-8

[18] METHYL ROTATION, VIBRATION, AND ALIGNMENT FROM A MULTIPHOTON IONIZATION STUDY OF THE 266 NM PHOTODISSOCIATION OF METHYL-IODIDE [J].

LOO, RO ;

HAERRI, HP ;

HALL, GE ;

HOUSTON, PL .

JOURNAL OF CHEMICAL PHYSICS, 1989, 90 (08) :4222-4236

[19]

Mulliken R. S., 1940, J CHEM PHYS, V8, P382, DOI 10.1063/1.1750671

[20]

MULLIKEN RS, 1935, J CHEM PHYS, V3, P513