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Sol-gel entrapped heteronuclear transition metal catalysts

机译:溶胶凝胶包裹的异核过渡金属催化剂

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摘要

The heteronuclear complexes [(CO)(4)Fe(mu-PPh2)Pd(mu-Cl)(2)](2), [Et4N] [FeCo3(CO)(12)] and Rh2Co2(CO)(12) were physically entrapped in SiO2-sol-gel matrices. The doped materials, so formed, were utilized as recyclable catalysts for(a) selective isomerization of 1-octene, (b) selective dimerization of norbornadiene to 'binor-S', and (c) hydrogenation and hydrogenolysis of styrene, nitrobenzene and 1-chloronaphthalene, respectively. During the hydrogenation of the nitrobenzene and of chloronaphthalene, the dodecacarbonylbis(cobalt) dirhodium was converted into sol-gel entrapped carbonyl-free nanoparticles that efficiently catalyze the reduction of the aromatic C-C bonds. (C) 2000 Elsevier Science Ltd All rights reserved. [References: 14]
机译:杂核络合物[(CO)(4)Fe(mu-PPh2)Pd(mu-Cl)(2)](2),[Et4N] [FeCo3(CO)(12)]和Rh2Co2(CO)(12)被物理包裹在SiO2-溶胶-凝胶基质中。如此形成的掺杂材料可用作(a)1-辛烯的选择性异构化,(b)降冰片二烯选择性二聚为'binor-S'以及(c)苯乙烯,硝基苯和1的加氢和氢解的可循环使用的催化剂。 -氯萘。在硝基苯和氯萘的氢化过程中,十二羰基双(钴)dirhodium被转化为溶胶-凝胶包裹的无羰基纳米颗粒,可有效催化芳族C-C键的还原。 (C)2000 Elsevier Science Ltd保留所有权利。 [参考:14]

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