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https://hdl.handle.net/2440/4530
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Type: | Journal article |
Title: | Cyclisation of allenylidene ligands to indenyl groups on ruthenium clusters |
Author: | Bruce, M. White, A. Skelton, B. Zaitseva, N. |
Citation: | Journal of Cluster Science: including nanoclusters and nanoparticles, 2002; 13(2):235-247 |
Publisher: | Kluwer Academic/Plenum Publ |
Issue Date: | 2002 |
ISSN: | 1040-7278 |
Statement of Responsibility: | Michael I. Bruce, Brian W. Skelton, Allan H. White and Natasha N. Zaitseva |
Abstract: | Thermolysis of Ru3 cluster complexes containing diarylallenylidene and dppm ligands results in phenyl migration from dppm to the allenylidene with concomitant H migration and C-C bond formation reactions to give several complexes each containing a cluster-bound indenyl group. In initially-formed complexes 3 or 6, the diarylindenyl group is attached to the cluster by two localized C=C double bonds of one aryl group and a benzylic interaction of the remaining C=C double bond combined with one carbon of the five-membered ring. Thermal rearrangement of these complexes with concomitant loss of CO gives 4 or 7, respectively, in which the indenyl group is more symmetrically bonded to the cluster by two C=C double bonds from the six-membered ring and an η5-interaction from the five-membered ring, both of the indenyl ligand. The X-ray crystal structure determination of Ru3(μ3-PPhCH2PPh2)(μ 3-C9H5Ph2)(CO)5 (4) is reported. A related reaction was found between Ru3(μ-H)(μ -CCCPh2)(μ-OH)(CO)9 and Co2(CO) 8, which afforded CoRu3 (μ3-C 9H6Ph) (μ-CO)4(CO)5 (8), also structurally characterized, in which the indenyl group caps the Ru3 face of a CoRu3 tetrahedron; unusually, there are four CO groups bridging the three Co-Ru bonds. |
Description: | The original publication is available at www.springerlink.com |
DOI: | 10.1023/A:1015552103043 |
Published version: | http://www.springerlink.com/content/pcnyftgeel5dt3v6/ |
Appears in Collections: | Aurora harvest 6 Chemistry publications |
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