Total electron-scattering cross sections for CHF3, C2F6, C3F8, and c-C4F8

被引：40

作者：

Sanabia, JE ^{[1
]}

Cooper, GD ^{[1
]}

Tossell, JA ^{[1
]}

Moore, JH ^{[1
]}

机构：

[1] Univ Maryland, Dept Chem & Biochem, College Pk, MD 20742 USA

来源：

JOURNAL OF CHEMICAL PHYSICS | 1998年 / 108卷 / 02期

关键词：

D O I：

10.1063/1.475399

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 total electron-scattering cross section has been measured for 0-20 eV electrons incident upon CHF3, C2F6, C3F8, and cyclo-C4F8. The cross sections all have a broad maximum for electron energies near 9 eV, with more or less sharper peaks attributed to temporary-negative ion resonances at lower energies. For the linear molecules a resonance in the 3-6 eV range is associated with electron capture into the lowest unoccupied orbital. The shape of the cross section for the cyclic compound implies a stable ground-state negative ion. (C) 1998 American Institute of Physics.

引用

页码：389 / 391

页数：3

共 18 条

[1] IONIZATION AND TEMPERATURE-DEPENDENT ATTACHMENT CROSS-SECTION MEASUREMENTS IN C3F8 AND C2H3CL [J].

CHANTRY, PJ ;

CHEN, CL .

JOURNAL OF CHEMICAL PHYSICS, 1989, 90 (05) :2585-2592

[2] ELECTRON-ATTACHMENT TO PERFLUOROCARBON COMPOUNDS .1. C4F6,2-C4F6,1,3-C4F6,C-C4F8 AND 2-C4F8 [J].

CHRISTODOULIDES, AA ;

CHRISTOPHOROU, LG ;

PAI, RY ;

TUNG, CM .

JOURNAL OF CHEMICAL PHYSICS, 1979, 70 (03) :1156-1168

[3] S-WAVE THRESHOLD IN ELECTRON-ATTACHMENT - OBSERVATIONS AND CROSS-SECTIONS IN CCL4 AND SF6 AT ULTRALOW ELECTRON ENERGIES [J].

CHUTJIAN, A ;

ALAJAJIAN, SH .

PHYSICAL REVIEW A, 1985, 31 (05) :2885-2892

[4] MEASUREMENTS OF ELECTRON-ATTACHMENT LINESHAPES AND CROSS-SECTIONS AT ULTRA-LOW ELECTRON ENERGIES FOR CF2CL2, C-C4F6, C-C4F8 AND C-C7F14 [J].

CHUTJIAN, A ;

ALAJAJIAN, SH .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1987, 20 (04) :839-846

[5] S-WAVE THRESHOLD IN ELECTRON-ATTACHMENT - RESULTS IN 2-C4F6 AND CFCL3 AT ULTRA-LOW ELECTRON ENERGIES [J].

CHUTJIAN, A ;

ALAJAJIAN, SH ;

AJELLO, JM ;

ORIENT, OJ .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1984, 17 (21) :L745-L750

[6] PARTITIONING OF EXCESS ENERGY IN DISSOCIATIVE RESONANCE CAPTURE PROCESSES [J].

HARLAND, PW ;

FRANKLIN, JL .

JOURNAL OF CHEMICAL PHYSICS, 1974, 61 (05) :1621-1636

[7] ELECTRON-ATTACHMENT TO THE PERFLUOROALKANES N-CNF2N+2(N=1-6) USING HIGH-PRESSURE SWARM TECHNIQUES [J].

HUNTER, SR ;

CHRISTOPHOROU, LG .

JOURNAL OF CHEMICAL PHYSICS, 1984, 80 (12) :6150-6164

[8] THE SIGMA-STAR MOLECULAR-ORBITALS OF PERFLUOROALKANES AS STUDIED BY INNER-SHELL ELECTRON-ENERGY LOSS AND ELECTRON TRANSMISSION SPECTROSCOPIES [J].

ISHII, I ;

MCLAREN, R ;

HITCHCOCK, AP ;

JORDAN, KD ;

CHOI, Y ;

ROBIN, MB .

CANADIAN JOURNAL OF CHEMISTRY-REVUE CANADIENNE DE CHIMIE, 1988, 66 (08) :2104-2121

[9] OBSERVATION OF THERMAL ELECTRON DETACHMENT FROM CYCLO-C4F8- IN FALP EXPERIMENTS [J].

MILLER, TM ;

MORRIS, RA ;

MILLER, AES ;

VIGGIANO, AA ;

PAULSON, JF .

INTERNATIONAL JOURNAL OF MASS SPECTROMETRY AND ION PROCESSES, 1994, 135 (2-3) :195-205

[10] ELECTRON-ATTACHMENT TO THE FLUOROMETHANES, BROMOMETHANES, AND IODOMETHANES STUDIED BY MEANS OF ELECTRON TRANSMISSION SPECTROSCOPY AND X-ALPHA CALCULATIONS [J].

MODELLI, A ;

SCAGNOLARI, F ;

DISTEFANO, G ;

JONES, D ;

GUERRA, M .

JOURNAL OF CHEMICAL PHYSICS, 1992, 96 (03) :2061-2070

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