4.5 Article

Nano and dendritic structured carboranes and metallacarboranes: From materials to cancer therapy

期刊

JOURNAL OF ORGANOMETALLIC CHEMISTRY
卷 694, 期 11, 页码 1690-1697

出版社

ELSEVIER SCIENCE SA
DOI: 10.1016/j.jorganchem.2008.11.059

关键词

Metallacarboranes; Nanoparticles; Catalysts; Dendrimers; BNCT; Polymers

资金

  1. National Science Foundation [CHE-0601023]
  2. Institute of Chemical and Engineering Sciences ( ICES) in Singapore
  3. Robert A. Welch Foundation [N-1322]
  4. Alexander von Humboldt Foundation
  5. Division Of Chemistry
  6. Direct For Mathematical & Physical Scien [0906179] Funding Source: National Science Foundation

向作者/读者索取更多资源

An account of the current research carried out in our laboratories is presented. Included is the incorporation of several group 14 elements into charge-compensated carboranes. These species present a bonding pattern not found in other main group carboranes. In addition to our continuing studies of the syntheses and structures of organometallic compounds, the use of these compounds as catalysts and catalyst precursors has been investigated. The isotopic exchange reactions between B-10 enriched boron hydrides with naturally abundant boranes catalyzed by Ru(0) nanoparticles has been studied. The Ru(0) nanoparticles were obtained by the reduction of [CpRuCp*RuCp*]PF6 (Cp* = C5Me5) with hydrogen and stabilized by the ionic liquid trihexyltetradecylphosphonium dodecylbenzenesulfonate [THTdP][DBS]. This was found to be an excellent, long lived catalyst for the exchange reaction of B-10 enriched diborane and naturally abundant decaborane(14). Other approaches to the production and use of nano-metal catalysts have also been explored. The reduction of the iridium carborane, (PPh3)(2)IrH(7,8-C2B9H11) with hydrogen in the presence of trihexyltetradecylphosphonium methylsulfonate, [THTdP][ MS], produced an Ir(0) nanoparticles that catalyzed the phenylborolation as did our Ir(sal = N-R = salicylaldiminato; COD = cyclooctadiene complex. Progress in the use of single wall carbon nanotubes (SWCNT) as boron delivery agents was also discussed. (C) 2008 Elsevier B. V. All rights reserved.

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