Ordering of Ruthenium Cluster Carbonyls in Mesoporous Silica

Author:

Zhou Wuzong12345,Thomas John Meurig12345,Shephard Douglas S.12345,Johnson Brian F. G.12345,Ozkaya Don12345,Maschmeyer Thomas12345,Bell Robert G.12345,Ge Qingfeng12345

Affiliation:

1. W. Zhou, D. S. Shephard, B. F. G. Johnson, Q. Ge, University Chemical Laboratories, Lensfield Road, Cambridge CB2 1EW, UK.

2. J. M. Thomas, Davy-Faraday Research Laboratories, Royal Institution of Great Britain, 21 Albemarle Street, London W1X 4BS, UK, and Department of Materials Science, University of Cambridge, Pembroke Street, Cambridge CB2 3QZ, UK.

3. D. Ozkaya, Department of Materials Science, University of Cambridge, Pembroke Street, Cambridge CB2 3QZ, UK.

4. T. Maschmeyer, University Chemical Laboratories, Lensfield Road, Cambridge CB2 1EW, UK, and Davy-Faraday Research Laboratories, Royal Institution of Great Britain, 21 Albemarle Street, London W1X 4BS, UK.

5. R. G. Bell, Davy-Faraday Research Laboratories, Royal Institution of Great Britain, 21 Albemarle Street, London W1X 4BS, UK.

Abstract

The anionic ruthenium cluster carbonylates [Ru 6 C(CO) 16 ] 2– or [H 2 Ru 10 (CO) 25 ] 2– interspersed with bis(triphenylphosphino)iminium counterions (PPN + ) are incorporated from solution into the pores of MCM-41 mesoporous silica (3 nanometers in diameter), where they form tightly packed arrays. These arrays were shown by high-resolution transmission electron microscopy, Fourier transform optical diffraction, and computer simulations to be well ordered both along and perpendicular to the axis of the cylindrical pores. In their denuded state produced by gentle thermolysis, the cluster carbonylates yield nanoparticles of ruthenium that are less well ordered than their assimilated precursors but show good activity as hydrogenation catalysts for hexene and cyclooctene. In both their as-prepared and denuded states, these encapsulated clusters are likely to exhibit interesting electronic and other properties.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Cited by 243 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3