Angular distributions for the Cl+C2H6→HCl+C2H5 reaction observed via multiphoton ionization of the C2H5 radical

被引：42

作者：

Kandel, SA ^{[1
]}

Rakitzis, TP ^{[1
]}

Lev-On, T ^{[1
]}

Zare, RN ^{[1
]}

机构：

[1] Stanford Univ, Dept Chem, Stanford, CA 94305 USA

来源：

JOURNAL OF PHYSICAL CHEMISTRY A | 1998年 / 102卷 / 13期

关键词：

D O I：

10.1021/jp9801828

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 title reaction has been studied by observing the ethyl radical product by means of resonance-enhanced multiphoton ionization (REMPI) that proceeds at 242 nm via highly dissociative Rydberg states. The method of core extraction was employed to measure the speed and spatial anisotropy distributions of the C2H5 product from which the differential cross section and the internal energy distribution of the products were deduced. The C2H5 product exhibits broad scattering that peaks sideways, and the internal modes of this product are not significantly excited. These results agree closely with these found from a previous study of the title reaction in which the HCl product was detected by REMPI under the same conditions. Additionally, we report REMPI detection of the propyl radical product in the analogous Cl + C3H8 reaction.

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页码：2270 / 2273

页数：4

相关论文

共 11 条

[1] ANALYSIS OF PRODUCT DOPPLER-BROADENED PROFILES GENERATED FROM PHOTOINITIATED BIMOLECULAR REACTIONS [J].

AOIZ, FJ ;

BROUARD, M ;

ENRIQUEZ, PA ;

SAYOS, R .

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1993, 89 (10) :1427-1434

[2] CONCLUSIVE EVIDENCE FOR SITE-SPECIFIC C-H BOND-CLEAVAGE RESULTING FROM 248 NM PHOTOLYSIS OF THE ETHYL RADICAL [J].

BRUM, JL ;

DESHMUKH, S ;

KOPLITZ, B .

JOURNAL OF CHEMICAL PHYSICS, 1991, 95 (03) :2200-2202

[3] MULTI-PHOTON IONIZATION OF METHYL-IODIDE AND SELECTIVE STEPWISE IONIZATION OF METHYL RADICALS [J].

DANON, J ;

ZACHARIAS, H ;

ROTTKE, H ;

WELGE, KH .

JOURNAL OF CHEMICAL PHYSICS, 1982, 76 (05) :2399-2406

[4] Dynamics for the Cl+C2H6->HCl+C2H5 reaction examined through state-specific angular distributions [J].

Kandel, SA ;

Rakitzis, TP ;

LevOn, T ;

Zare, RN .

JOURNAL OF CHEMICAL PHYSICS, 1996, 105 (17) :7550-7559

[5] REACTIONS OF VELOCITY-ALIGNED ATOMS PROBED BY DOPPLER PROFILES - H+O-2-]OH+O [J].

KIM, HL ;

WICKRAMAARATCHI, MA ;

ZHENG, XN ;

HALL, GE .

JOURNAL OF CHEMICAL PHYSICS, 1994, 101 (03) :2033-2050

[6] FINE-STRUCTURE BRANCHING RATIOS AND DOPPLER PROFILES OF CL(2PJ) PHOTOFRAGMENTS FROM PHOTODISSOCIATION OF THE CHLORINE MOLECULE NEAR AND IN THE ULTRAVIOLET REGION [J].

MATSUMI, Y ;

TONOKURA, K ;

KAWASAKI, M .

JOURNAL OF CHEMICAL PHYSICS, 1992, 97 (02) :1065-1071

[7] STATE-TO-STATE DIFFERENTIAL CROSS-SECTIONS FROM PHOTOINITIATED BULB REACTIONS [J].

SHAFER, NE ;

ORREWING, AJ ;

SIMPSON, WR ;

XU, H ;

ZARE, RN .

CHEMICAL PHYSICS LETTERS, 1993, 212 (1-2) :155-162

[8] CORE EXTRACTION FOR MEASURING STATE-TO-STATE DIFFERENTIAL-CROSS SECTIONS OF BIMOLECULAR REACTIONS [J].

SIMPSON, WR ;

ORREWING, AJ ;

RAKITZIS, TP ;

KANDEL, SA ;

ZARE, RN .

JOURNAL OF CHEMICAL PHYSICS, 1995, 103 (17) :7299-7312

[9] REACTION OF CL WITH VIBRATIONALLY EXCITED CH4 AND CHD3 - STATE-TO-STATE DIFFERENTIAL CROSS-SECTIONS AND STERIC EFFECTS FOR THE HCL PRODUCT [J].

SIMPSON, WR ;

RAKITZIS, TP ;

KANDEL, SA ;

ORREWING, AJ ;

ZARE, RN .

JOURNAL OF CHEMICAL PHYSICS, 1995, 103 (17) :7313-7335

[10] Comparison of the dynamics of abstraction of primacy vs secondary hydrogens in the Cl+CD3CH2CD3 reaction [J].

Varley, DF ;

Dagdigian, PJ .

CHEMICAL PHYSICS LETTERS, 1996, 255 (4-6) :393-400