Evidence for interfacial molecular recognition in transition metal complexes adsorption on amorphous silica surfaces

被引：38

作者：

Boujday, S ^{[1
]}

Lambert, JF ^{[1
]}

Che, M ^{[1
]}

机构：

[1] Univ Paris 06, CNRS, UMR 7609, Lab React Surface, F-75252 Paris 05, France

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 2003年 / 107卷 / 03期

关键词：

D O I：

10.1021/jp0269120

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：

A series of Ni(H) complexes containing polyamines and 1, 2, or 3 labile aqua ligands ([Ni(en)(dien)(H(2)O)](2+), [Ni(en)(2)(H(2)O)(2)](2+), [Ni(dien)(H(2)O)(3)](2+)) were selectively adsorbed on the same silica support. In all cases, saturation coverages derived from adsorption isotherms were far below one physical monolayer and UV-visible and EXAFS spectroscopy suggested adsorption by grafting on specific surface sites. The density of adsorption sites was different for all three complexes, suggesting that molecular recognition phenomena, probably implying interactional complementarity between surface and adsorbate, are operative in the adsorption mechanism.

引用

页码：651 / 654

页数：4

共 28 条

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