Unprecedented Hybrid Scorpionate/Phosphine Ligand Able To Be Anchored to Carbosilane Dendrimers
- 25 October 2005
- journal article
- Published by American Chemical Society (ACS) in Inorganic Chemistry
- Vol. 44 (25) , 9122-9124
- https://doi.org/10.1021/ic051279t
Abstract
The synthesis of a novel hybrid pyrazolate/phosphine anionic ligand [CH2CHCH2B(CH2PPh2)(pz)2]- is described. Coordination of this ligand to metals in a fac tridentate fashion occurs in the complexes [CH2CHCH2B(CH2PPh2)(pz)2M(cod)], prepared by reactions of the lithium salt of the ligand with [M(μ-Cl)(cod)]2 (M = Rh, Ir). They are pentacoordinated, with the rhodium complex showing a distorted trigonal-bipyramidal structure in the solid state, as determined by X-ray diffraction methods. Furthermore, the ligand has been linked to the periphery of a carbosilane dendrimer, resulting in the polyanionic dendrimer [Li(TMED)]4[Si{(CH2)3SiMe2(CH2)3B(CH2PPh2)(pz)2}4], which leads further to the corresponding metallodendrimer with four rhodium atoms.Keywords
This publication has 22 references indexed in Scilit:
- Coordination Chemistry and Reactivity of New Zwitterionic Rhodium and Iridium Complexes Featuring the Tripodal Phosphine Ligand [PhB(CH2PiPr2)3]-. Activation of H−H, Si−H, and Ligand B−C BondsOrganometallics, 2004
- Polymerization of phenylacetylene catalysed by RhTp(cod) and RhBp(cod) in ionic liquids: effect of alcohols and of tetraammonium halidesApplied Organometallic Chemistry, 2004
- Isolation of a Stable 1-Iridabicyclo[3.2.0]hepta-1,3,6-triene and Its Reversible Transformation into an IridacycloheptatrieneJournal of the American Chemical Society, 2004
- An Unprecedented Hybrid Scorpionate/Cyclopentadienyl LigandJournal of the American Chemical Society, 2004
- Copper-Catalyzed Carbene Insertion into O−H Bonds: High Selective Conversion of Alcohols into EthersOrganometallics, 2003
- Silylene Extrusion from a Silane: Direct Conversion of Mes2SiH2to an Iridium Silylene DihydrideJournal of the American Chemical Society, 1999
- Preparation of Carbosilane Dendrimers and Their Characterization Using 1H/13C/29Si Triple Resonance 3D NMR MethodsJournal of the American Chemical Society, 1998
- Modeling the active sites of bacteriophage T7 lysozyme, bovine 5-aminolevulinate dehydratase, and peptide deformylase: synthesis and structural characterization of a bis(pyrazolyl)(thioalkoxy)hydroborato zinc complex, [(Ph2CHS)BpBut,Pri]ZnIChemical Communications, 1998
- Synthesis and Structure Determination of Rh−diene Complexes with the Hydridotris(3,5-diisopropylpyrazolyl)borate Ligand, TpiPrRh(diene) (diene = cod, nbd): Dependence of the ν(B−H) Values on the Hapticity of the TpiPrLigand (κ2vs κ3)1Organometallics, 1997
- The (dimethylamido)tri-1-pyrazolylborate(1-) ion, a new hybrid poly-1-pyrazolylborate ligandInorganic Chemistry, 1985