Dynamics of the H+D2O->D+HOD hydrogen exchange reaction

被引：27

作者：

Brownsword, RA ^{[1
]}

Hillenkamp, M ^{[1
]}

Laurent, T ^{[1
]}

Vatsa, RK ^{[1
]}

Volpp, HR ^{[1
]}

Wolfrum, J ^{[1
]}

机构：

[1] UNIV HEIDELBERG,INST PHYS CHEM,D-69120 HEIDELBERG,GERMANY

来源：

CHEMICAL PHYSICS LETTERS | 1996年 / 259卷 / 3-4期

关键词：

D O I：

10.1016/0009-2614(96)00825-1

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：

The gas-phase reaction dynamics of H + D2O --> D + HOD were studied using the laser photolysis/vacuum-UV laser-induced fluorescence (LP/VUV-LIF) ''pump-and-probe'' technique. Translationally excited H atoms with an average center-of-mass energy of E(c.m.) = 2.2 eV in the H-D2O frame were generated by the laser photolysis of H2S at 193 nm. Nascent D atoms produced in the reaction of H with room temperature D2O molecules were detected under single collision conditions by VUV-LIF at the Lyman-alpha transition. An absolute reaction cross section of sigma(R)(2.2 eV) = (0.36 +/- 0.15) Angstrom(2) was determined by means of a calibration method. In addition, from the D atom Doppler profiles the average fraction of the available energy released as product translational energy was determined to be f(T)(D + HOD) = 0.58 +/- 0.09.

引用

页码：375 / 380

页数：6

共 31 条

[1] INTEGRAL RATE-CONSTANT MEASUREMENTS OF THE REACTION H+D2O-]HD(V',J')+OD [J].

ADELMAN, DE ;

FILSETH, SV ;

ZARE, RN .

JOURNAL OF CHEMICAL PHYSICS, 1993, 98 (06) :4636-4643

[2]

ALAGIA M, 1996, SPRINGER SERIES CHEM, V61

[3] BOND-SPECIFIC CHEMISTRY - OD-OH PRODUCT RATIOS FOR THE REACTIONS H+HOD(100) AND H+HOD(001) [J].

BRONIKOWSKI, MJ ;

SIMPSON, WR ;

GIRARD, B ;

ZARE, RN .

JOURNAL OF CHEMICAL PHYSICS, 1991, 95 (11) :8647-8648

[4] COMPARISON OF REAGENT STRETCH VS BEND EXCITATION IN THE H+D2O REACTION - AN EXAMPLE OF MODE-SELECTIVE CHEMISTRY [J].

BRONIKOWSKI, MJ ;

SIMPSON, WR ;

ZARE, RN .

JOURNAL OF PHYSICAL CHEMISTRY, 1993, 97 (10) :2204-2208

[5] THE INVERSION MECHANISM FOR THE REACTION H+CD4-]CD3H+D [J].

CHATTOPADHYAY, A ;

TASAKI, S ;

BERSOHN, R ;

KAWASAKI, M .

JOURNAL OF CHEMICAL PHYSICS, 1991, 95 (02) :1033-1036

[6] PHOTODISSOCIATION OF H2S AND THE HS RADICAL AT 193.3 NM [J].

CONTINETTI, RE ;

BALKO, BA ;

LEE, YT .

CHEMICAL PHYSICS LETTERS, 1991, 182 (05) :400-405

[7]

CRIM FF, 1991, MODE SELECTIVE CHEM

[8] EXPERIMENTAL-DETERMINATION OF TOTAL REACTIVE CROSS-SECTIONS FOR H+D-2(V=0)-]HD+D AT EC.M. =2.11 AND 1.54 EV [J].

GERLACHMEYER, U ;

KLEINERMANNS, K ;

LINNEBACH, E ;

WOLFRUM, J .

JOURNAL OF CHEMICAL PHYSICS, 1987, 86 (05) :3047-3048

[9] BROADLY TUNABLE VACUUM ULTRAVIOLET EXTREME-ULTRAVIOLET RADIATION GENERATED BY RESONANT 3RD-ORDER FREQUENCY-CONVERSION IN KRYPTON [J].

HILBER, G ;

LAGO, A ;

WALLENSTEIN, R .

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 1987, 4 (11) :1753-1764

[10] REACTION OF H2O WITH H PRODUCED BY THE 266 NM PHOTOLYSIS OF HI [J].

HONDA, K ;

TAKAYANAGI, M ;

NISHIYA, T ;

OHOYAMA, H ;

HANAZAKI, I .

CHEMICAL PHYSICS LETTERS, 1991, 180 (04) :321-326

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