Reappraisal of the existence of shape resonances in the series C2H2, C2H4, and C2H6

被引：54

作者：

Kempgens, B

Koppe, HM

Kivimaki, A

Neeb, M

Maier, K

Hergenhahn, U

Bradshaw, AM

机构：

[1] Fritz-Haber-Institut der Max-Planck-Gesellschaft, Berlin, 14195

来源：

PHYSICAL REVIEW LETTERS | 1997年 / 79卷 / 01期

关键词：

D O I：

10.1103/PhysRevLett.79.35

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have measured the main line (single hole) C 1s photoionization cross sections for C2H2, C2H4, and C2H6 in the immediate threshold region. These three molecules occupy a central place in the proposed correlation between shape resonance position and molecular geometry. We find no clearly identifiable shape resonances in the single hole cross sections of C2H4 and C2H6 and only weak evidence for one in C2H2.

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页码：35 / 38

页数：4

相关论文

共 34 条

[1] INTRAMOLECULAR RESONANCES AFTER K-SHELL EXCITATION OF C2H2N ADSORBED ON AG AND CU(100) SURFACES [J].

ARVANITIS, D ;

RABUS, H ;

WENZEL, L ;

BABERSCHKE, K .

ZEITSCHRIFT FUR PHYSIK D-ATOMS MOLECULES AND CLUSTERS, 1989, 11 (03) :219-229

[2] EVIDENCE OF EFFECTIVE POTENTIAL BARRIERS IN X-RAY ABSORPTION-SPECTRA OF MOLECULES [J].

DEHMER, JL .

JOURNAL OF CHEMICAL PHYSICS, 1972, 56 (09) :4496-&

[3]

DEHMER JL, 1987, PHOTOPHYSICS PHOTOCH

[4] THEORETICAL-STUDIES OF PHOTOIONIZATION IN C2H2, C2H4, AND C2H6 - CORRELATION OF PROMINENT SPECTRAL FEATURES WITH C-C AND C-H ANTIBONDING ORBITALS [J].

FARREN, RE ;

SHEEHY, JA ;

LANGHOFF, PW .

CHEMICAL PHYSICS LETTERS, 1991, 177 (03) :307-314

[5] AN ANGLE-RESOLVING PHOTOELECTRON SPECTROMETER FOR THE SIMULTANEOUS MEASUREMENT OF CROSS-SECTIONS AND ASYMMETRY PARAMETERS USING SYNCHROTRON RADIATION [J].

FELDHAUS, J ;

ERLEBACH, W ;

KILCOYNE, ALD ;

RANDALL, KJ ;

SCHMIDBAUER, M .

REVIEW OF SCIENTIFIC INSTRUMENTS, 1992, 63 (01) :1454-1457

[6] ELECTRONIC PROPERTIES OF SULFUR HEXAFLUORIDE .2. MOLECULAR-ORBITAL INTERPRETATION OF ITS X-RAY ABSORPTION-SPECTRA [J].

GIANTURCO, FA ;

LAMANNA, U ;

GUIDOTTI, C .

JOURNAL OF CHEMICAL PHYSICS, 1972, 57 (02) :840-+

[7] OBSERVATION OF NONISOTROPIC AUGER ANGULAR-DISTRIBUTION IN THE C(1S) SHAPE RESONANCE OF CO [J].

HEMMERS, O ;

HEISER, F ;

EIBEN, J ;

WEHLITZ, R ;

BECKER, U .

PHYSICAL REVIEW LETTERS, 1993, 71 (07) :987-990

[8] CARBON K-SHELL EXCITATION OF C2H2,C2H4,C2H6 AND C6H6 BY 2.5KEV ELECTRON-IMPACT [J].

HITCHCOCK, AP ;

BRION, CE .

JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA, 1977, 10 (03) :317-330

[9] IONIC FRAGMENTATION OF SF6 IONIZED IN SULFUR 2P SHELL [J].

HITCHCOCK, AP ;

BRION, CE ;

VANDERWIEL, MJ .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1978, 11 (18) :3245-3261

[10] K-SHELL SHAPE RESONANCES AND INTRAMOLECULAR BOND LENGTHS - COMMENTS ON THE RELATIONSHIP BETWEEN SHAPE RESONANCES AND BOND LENGTHS [J].

HITCHCOCK, AP ;

STOHR, J .

JOURNAL OF CHEMICAL PHYSICS, 1987, 87 (05) :3253-3255

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