PRECOVERAGE-DEPENDENT MOLECULAR-ORIENTATION OF BIG ORGANIC ADSORBATES - NDCA ON NI(111) AND O/NI(111)

被引：22

作者：

TABORSKI, J ^{[1
]}

WUSTENHAGEN, V ^{[1
]}

VATERLEIN, P ^{[1
]}

UMBACH, E ^{[1
]}

机构：

[1] UNIV WURZBURG,D-97074 WURZBURG,GERMANY

来源：

CHEMICAL PHYSICS LETTERS | 1995年 / 239卷 / 4-6期

关键词：

D O I：

10.1016/0009-2614(95)00482-J

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 orientation and chemical bonding of big organic adsorbates may strongly depend on the properties of the surface, e.g. on the precoverage. This is demonstrated for the planar molecule naphthalene-(1,8)-dicarbonic acid anhydride (NDCA) on a clean and oxygen p[2 X 2] precovered Ni(111) surface by TPD and NEXAFS experiments. On clean Ni(lll) NDCA lies flat on the surface and bonds via the naphthalene pi system, whereas on the O-precovered substrate an upright orientation with bonding via the anhydride group is observed. Arguments are given for the reason for this drastic change of adsorbate geometry which has some implications for 'tailoring' organic/inorganic interfaces.

引用

页码：380 / 386

页数：7

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