Abstract
Title full: Reactions of the hexaruthenium cluster anions [Ru6C(CO)16]2- and [Ru6(CO)18]2- with Au2{Ph2PCH2PPh2}Cl2 : crystal and molecular structures of Ru6C(CO)16Au2{Ph2PCH 2PPh2} and Ru5(CO)15Au2{Ph2PCH 2PPh2}. The reaction of the carbido dianion [Ru6C(CO)16]2- with Au2{Ph2PCH2PPh2}Cl2 , in dichloromethane, in the presence of TIPF6, affords the neutral cluster Ru6C(CO)16Au2{Ph2PCH2 PPh2} (1) in 90% yield. An X-ray analysis of 1 shows that the octahedral ruthenium core has remained intact, and that the two Au atoms of the chelating gold phosphine bridge two adjacent edges of one of the triangular faces of the Ru6 octahedron. In marked contrast, the reaction of the non-carbido dianion [Ru6(CO)18] 2- with Au2{Ph2PCH2PPh2}Cl2 under similar reaction conditions leads to the breakdown of the octahedral ruthenium core and the formation of Ru5(CO)15Au2{Ph2PCH2 PPh2} (2) in ca. 50% yield. The X-ray analysis of 2 shows that the ruthenium atoms adopt a trigonal bipyramidal framework with the Au atoms of the Au2{Ph2PCH2PPh2} ligand μ3- capping adjacent faces of the trigonal bipyramid in a manner not previously observed for mixed ruthenium-gold clusters.
| Original language | English |
|---|---|
| Pages (from-to) | 293-301 |
| Number of pages | 9 |
| Journal | Journal of Organometallic Chemistry |
| Volume | 459 |
| Issue number | 1-2 |
| DOIs | |
| Publication status | Published - 19 Oct 1993 |
Funding
We are grateful to Johnson Matthey (M.A.B.) and the S.E.R.C. (P.J.B.) for funding and to the European Economic Communityf or a bursary( M.C.R. de A.).
| Funders | Funder number |
|---|---|
| European Economic Communityf | |
| S.E.R.C. |
ASJC Scopus subject areas
- Biochemistry
- Physical and Theoretical Chemistry
- Organic Chemistry
- Inorganic Chemistry
- Materials Chemistry