σ* resonances in electron transmission (ETS) and x-ray absorption (XAS) spectroscopies of dimethyl(poly)sulphides (CH3)2Sx (x = 1, 2, 3)

被引：35

作者：

Dezarnaud-Dandine, C

Bournel, F

Tronc, M

Jones, D

Modelli, A

机构：

[1] Univ Paris 06, Lab Chim Phys Mat & Rayonnement, F-75231 Paris 05, France

[2] CNRS UMR 7614, F-75231 Paris, France

[3] CNR, Ist Composti Carbonio Contenenti Eteroatomi & Lor, I-40129 Bologna, Italy

[4] Univ Bologna, Dipartimento Chim G Ciamician, I-40126 Bologna, Italy

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 1998年 / 31卷 / 11期

关键词：

D O I：

10.1088/0953-4075/31/11/004

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

sigma* shape resonances involving S-C and S-S antibonding levels have been observed in low-energy electron transmission spectroscopy (ETS) and sulphur Is excitation spectra (XAS) of dimethylsulphide (DMS), dimethyldisulphide (DMDS) and dimethyltrisulphide (DMTS). A correlation diagram is established for ionization energies (IEs) of valence occupied molecular orbitals, term values (TVs) of sulphur K-shell excited states and electron attachment energies (AEs) for temporary negative ion resonance states of these molecules showing a strong decrease of the HOMO-LUMO energy gap with the sulphur atom chain length.

引用

页码：L497 / L502

页数：6

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