Abstract
The complexes Pt(nb)3-n(P-iPr3)n (n = 1, 2, nb = bicyclo[2.2.1]hept-2-ene), prepared in situ from Pt(nb)3, are useful reagents for addition of Pt(P-iPr3)n fragments to saturated triruthenium clusters. The complexes Ru3Pt(CO)11(P-iPr3)2 (1), Ru3Pt(µ-H)(µ3-?3MeCCHCMe)(CO) 9(P-iPr3) (2), Ru3Pt(µ3-?2-PhCCPh)(CO) 10(P-iPr3) (3), Ru3Pt(µ-H)(µ4-N)(CO)10(P-iPr3) (4) and Ru3Pt(µ-H)(µ4-?2-NO)(CO) 10(P-iPr3) (5) have been prepared in this fashion. All complexes have been characterized spectroscopically and by single crystal X-ray determinations. Clusters 1-3 all have 60 cluster valence electrons (CVE) but exhibit differing metal skeletal geometries. Cluster 1 exhibits a planar-rhomboidal metal skeleton with 5 metal-metal bonds and with minor disorder in the metal atoms. Cluster 2 has a distorted tetrahedral metal arrangement, while cluster 3 has a butterfly framework (butterfly angle= 118.93(2)°). Clusters 4 and 5 posseses 62 CVE and spiked triangular metal frameworks. Cluster 4 contains a µ4-nitrido ligand, while cluster 5 has a highly unusual µ4-?2-nitrosyl ligand with a very long nitrosyl N-O distance of 1.366(5) Å.
Original language | English |
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Pages (from-to) | 243-257 |
Number of pages | 15 |
Journal | Journal of Cluster Science |
Volume | 12 |
Issue number | 1 |
DOIs | |
Publication status | Published - 2001 |
Keywords
- μ 4 -η 2 -nitrosyl
- Alkyne
- Allyl
- Carbonyl cluster
- Mixed-metal
- Nitrido
- Platinum
- Ruthenium
- X-ray structure