The adsorption and desorption of ferrocene on Ag(100)

被引:41
作者
Welipitiya, D
Dowben, PA
Zhang, JD
Pai, WW
Wendelken, JF
机构
[1] UNIV NEBRASKA,DEPT PHYS,LINCOLN,NE 68588
[2] UNIV NEBRASKA,CTR MAT RES & ANAL,BEHLEN LAB PHYS,LINCOLN,NE 68588
[3] OAK RIDGE NATL LAB,DIV SOLID STATE,OAK RIDGE,TN 37831
基金
美国国家科学基金会;
关键词
ferrocene; high resolution electron energy loss; molecular adsorption; photoemission;
D O I
10.1016/S0039-6028(96)00855-2
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 molecular adsorption and desorption of ferrocene, Fe(C5H5)(2), on Ag(100) have been studied by both photoemission and thermal desorption. Photoemission results indicate that the initially adsorbed surface species closely resemble that of molecular ferrocene. The molecule is adsorbed with the cyclopentadienyl (C5H5) ring ligands parallel to the surface, as determined by electron energy-loss spectroscopy. The shift in photoemission binding energies relative to the gas phase is largely independent of the molecular orbital. The ultraviolet light does lead to partial fragmentation of the ferrocene, but fragmentation occurs only in the presence of incident radiation. The energetics of molecular desorption are influenced by lateral interactions within the molecularly adsorbed film.
引用
收藏
页码:20 / 32
页数:13
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