Journal of Cluster Science

, Volume 21, Issue 3, pp 379–396

Routes to Higher Nuclearity Mixed-Metal Carbonyl Clusters Using the [Rh(η5-C5Me5)(NCMe)3]2+ Dication as a Building Block

Authors

  • Saifun Nahar
    • Department of ChemistryUniversity of Cambridge
  • John E. Davies
    • Department of ChemistryUniversity of Cambridge
  • Gregory P. Shields
    • Department of ChemistryUniversity of Cambridge
    • Department of ChemistryUniversity of Cambridge
    • Department of ChemistryUniversity of Bath
Original Paper

DOI: 10.1007/s10876-010-0331-9

Cite this article as:
Nahar, S., Davies, J.E., Shields, G.P. et al. J Clust Sci (2010) 21: 379. doi:10.1007/s10876-010-0331-9

Abstract

Reaction of the [Rh(η5-C5Me5)(NCMe)3]2+ (1) dication with the hexaosmium [Os6(CO)17]2− (2) dianion leads to the initial formation of [Os6(CO)17Rh(η5-C5Me5)] (3). This cluster readily adds CO to form [Os6(CO)18Rh(η5-C5Me5)] (4) which has been characterised crystallographically. 3 also adds dihydrogen to give [Os6H2(CO)17Rh(η5-C5Me5)] (5) and undergoes a substitution reaction with PPh3 to form [Os6(CO)16(PPh3)Rh(η5-C5Me5)] (6). With the [Ru6(CO)18]2− (7) dianion, [Rh(η5-C5Me5)(NCMe)3]2+ (1) reacts to form three mixed-metal clusters [Ru5(CO)15Rh(η5-C5Me5)] (8), [Ru6(CO)18Rh(η5-C5Me5)] (9) and [Ru6(CO)18Rh25-C5Me5)2] (10). The clusters have been characterised spectroscopically and the structures of 8 and 10 have been confirmed crystallographically. The cluster 8 undergoes a substitution reaction with P(OMe)3 to form the disubstituted product [Ru5(CO)13(P(OMe)3)2Rh((η5-C5Me5)] (11) which has also been characterised crystallographically.

Keywords

Cluster carbonylRhodiumOsmiumRutheniumCyclopentadienylX-ray crystal structure

Copyright information

© Springer Science+Business Media, LLC 2010