Novel microporous rhodium(II) carboxylate polymer complexes containing metalloporphyrin: syntheses and catalytic performances in hydrogenation of olefins

被引：80

作者：

Sato, T ^{[1
]}

Mori, W ^{[1
]}

Kato, CN ^{[1
]}

Yanaoka, E ^{[1
]}

Kuribayashi, T ^{[1
]}

Ohtera, R ^{[1
]}

Shiraishi, Y ^{[1
]}

机构：

[1] Kanagawa Univ, Fac Sci, Dept Chem, Kanagawa 2591293, Japan

来源：

JOURNAL OF CATALYSIS | 2005年 / 232卷 / 01期

关键词：

rhodium carboxylate polymer complex; metalloporphyrin; microporous materials; olefin hydrogenation; adsorption property;

D O I：

10.1016/j.jcat.2005.02.007

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：

Novel microporous rhodium(II) carboxylate polymer complexes containing metalloporphyrin, Rh-2[MTCPP] (M = H-2 1, Cu2+ 2, Ni2+ 3, Pd2+ 4) (H2TCPP = 4,4',4",4"'-(21H,23H-porphine-5,10,15,20-tetrayl)tetrakis benzoic acid), were synthesized and completely characterized by elemental analysis, TG/DTA, magnetic susceptibilities, FT-IR, DR-UV-vis, XRPD, BET analysis, and nitrogen adsorption measurements. These complexes possess carboxylate bridged dinuclear rhodium(II) sites and mononuclear copper(II), nickel(II), and palladium(II) centers in the porphyrin ring that form uniform micropores of ca. 5.0 A. Furthermore, they show high surface areas and high nitro en adsorption capacities and act as efficient heterogeneous catalysts for the hydrogenation of olefins at approximately 200 K. The unique bimetallic effects shown by metalloporphyrin and dinuclear rhodium sites in micropores were investigated by kinetic studies and hy- drogen and propene adsorption-desorption measurements; the priority coordination of olefins onto metalloporphyrins and the intramolecular transfer of hydrogen from a rhodium center to a olefin molecule coordinated onto metalloporphyrin remarkably reflects the catalytic activities in hydrogenation. (c) 2005 Elsevier lnc. All rights reserved.

引用

页码：186 / 198

页数：13

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