Mononuclear and heterodinuclear transition metal complexes of functionalized phosphines. Crystal and molecular structures of [Mo(CO)5(RPC6H4OCH2OCH3-o)] (R = Ph, C6H4OCH2OCH3-o), [Ru(Ph2PC6H4O-o)3], [Pd(Ph2PC6H4O-o)2] and [PdCl(Ph2PC6H4O-o)(Ph2PC6H4OH-o)]
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Title |
Mononuclear and heterodinuclear transition metal complexes of functionalized phosphines. Crystal and molecular structures of [Mo(CO)5(RPC6H4OCH2OCH3-o)] (R = Ph, C6H4OCH2OCH3-o), [Ru(Ph2PC6H4O-o)3], [Pd(Ph2PC6H4O-o)2] and [PdCl(Ph2PC6H4O-o)(Ph2PC6H4OH-o)]
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Creator |
SRINIVASAN, PRIYA
BALAKRISHNA, MS MAGUE, JOEL T |
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Subject |
transition metal
molecular structure metal crystal structure |
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Description |
Transition metal complexes of phosphine ethers (Ph2PC6H4OCH2OCH3-o and PhP(C6H4OCH2OCH3-o)2) and phosphinophenol, Ph2PC6H4OH-o are described. Phosphine ethers react with Group 6 metal carbonyls to form complexes of the type [M(CO)4L2] and [M(CO)5L] (M = Mo, Cr, W). The reaction of Ph2PC6H4OCH2OCH3-o with RuCl3ยท 3H2O gave ruthenium(III) complex, [Ru(Ph2PC6H4O-o)3] through the elimination of CH3OCH2Cl whereas the reaction with CpRu(PPh3)2Cl resulted in the formation of [CpRu(Ph2PC6H4O-o)PPh3]. Treatment of Ph2PC6H4OCH2OCH3-o with rhodium(I) derivatives resulted in the formation of complexes with the phosphine exhibiting both mono- and bidentate modes of coordination involving the phosphorus center and the phenolic oxygen. The reaction of Ph2PC6H4OCH2OCH3-o with [PdCl2(COD)] led to the isolation of two mononuclear complexes, [PdCl(Ph2PC6H4O-o)(Ph2PC6H4OH-o)] cocrystallized with phosphonium salt, [Ph2P(CH2OCH3)C6H4OH-o]Cl and [Pd(Ph2PC6H4O-o)2] as confirmed by X-ray diffraction studies. The former shows extensive hydrogen bonding interactions between the complex and the phosphonium salt. The metalloligand, Cp2Zr(OC6H4PPh2-o)2 obtained by the reaction of Cp2ZrCl2 with Ph2PC6H4OH-o form heterobimetallic complexes with Mo(0), Re(I) and Ni(0) carbonyl derivatives. The reactions of Cp2Zr(OC6H4PPh2-o)2 with metal halides such as M(COD)Cl2 (M = Pd, Pt) and CpRuCl(PPh3)2 afforded metallacycles, [M(Ph2PC6H4O-o)2] and [CpRu(PPh2C6H4OH-o)(PPh2C6H4O-o)], respectively via transmetallation.
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Publisher |
Elsevier
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Date |
2009-03-20T06:00:35Z
2011-11-25T19:58:54Z 2011-12-26T13:07:44Z 2011-12-27T05:55:46Z 2009-03-20T06:00:35Z 2011-11-25T19:58:54Z 2011-12-26T13:07:44Z 2011-12-27T05:55:46Z 2004 |
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Type |
Article
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Identifier |
Journal of Organometallic Chemistry 689(21), 3335-3349
0022-328X http://dx.doi.org/10.1016/j.jorganchem.2004.07.041 http://hdl.handle.net/10054/1045 http://dspace.library.iitb.ac.in/xmlui/handle/10054/1045 |
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Language |
en
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