Platinum(0) Complexes with Alkynylphosphane Ligands
作者： Jesús R. Berenguer , Elena Lalinde , M. Teresa Moreno , Patricia Montaño
关键词:
摘要: The reactivity of the Pt0 derivative [Pt2(dba)3] (dba = trans,trans-dibenzylideneacetone) towards PPh2C≡CR [R Ph, tolyl (Tol), C5H4N-2] and PPh2C≡CPPh2 (dppa) has been explored. Treatment with (8 equiv.) in THF gave tetrahedral complexes [Pt(PPh2C≡CR)4] Ph (1), Tol (3), C5H4N-2 (5)], whereas reactions a molar ratio 1:4 afforded binuclear derivatives [{Pt(PPh2C≡CR)(μ-κP:η2-PPh2C≡CR)}2] (2), (4) X-ray, (6)], which were shown to be generated through mononuclear 1, 3 5 as intermediate species. An analogous reaction using 4 equiv. [Pt2(PPh2C≡CPPh2)2(μ-κ2PP′-PPh2C≡CPPh2)3] (7), two “Pt(PPh2C≡CPPh2)” fragments are joined three bridging dppa ligands (μ-κ2PP′-PPh2C≡CPPh2). Attempts crystallize 7 at –30 °C crystals [Pt2{PPh2C≡CP(O)Ph2}2(μ-κ2PP′-PPh2C≡CPPh2)3] (8) by oxidation free end terminal ligands. compound was characterized X-ray diffraction.
sci-hub.se 参考文章(66)
Juan Forniés, Julio Gómez, Elena Lalinde, M. Teresa Moreno, Discrete Triangle, Square and Hexametallic Alkynyl Cyano‐Bridged Compounds Based on [cis‐Pt(CCR)2(CN)2]2− Building Blocks Chemistry: A European Journal. ,vol. 10, pp. 888- 898 ,(2004) , 10.1002/CHEM.200304987
Thomas Baumgartner, Keith Huynh, Silvia Schleidt, Alan J. Lough, Ian Manners, Metallochain cluster complexes and metallomacrocyclic triangles based on coordination bonds between palladium or platinum and diphosphinoacetylene ligands. Chemistry: A European Journal. ,vol. 8, pp. 4622- 4632 ,(2002) , 10.1002/1521-3765(20021018)8:20<4622::AID-CHEM4622>3.0.CO;2-V
Martin A. Bennett, Laurence Kwan, A. David Rae, Eric Wenger, Anthony C. Willis, Preparation and reactivity of mononuclear platinum(0) complexes containing a η2-coordinated alkynylphosphine Journal of The Chemical Society-dalton Transactions. pp. 226- 233 ,(2002) , 10.1039/B107015K
Graeme Hogarth, Tim Norman, Linking metal centres with bis(diphenylphosphino)acetylene (DPPA): Syntheses and molecular structures of [{Mo(CO)4(μ-DPPA)}2] and [{Mo(CO)3}2(μ-DPPA)3] Polyhedron. ,vol. 15, pp. 2859- 2867 ,(1996) , 10.1016/0277-5387(95)00568-4
Maria C. Burla, Rocco Caliandro, Mercedes Camalli, Benedetta Carrozzini, Giovanni L. Cascarano, Liberato De Caro, Carmelo Giacovazzo, Giampiero Polidori, Riccardo Spagna, SIR2004: an improved tool for crystal structure determination and refinement Journal of Applied Crystallography. ,vol. 38, pp. 381- 388 ,(2005) , 10.1107/S002188980403225X
Andrew A. Cherkas, Leslie H. Randall, Shane A. MacLaughlin, Graham N. Mott, Nicholas J. Taylor, Arthur J. Carty, Polynuclear acetylides. Synthesis, spectroscopic features and structural systematics for a complete triad of .mu.2-.eta.2-complexes: M2(CO)6(.mu.2-.eta.2-C.tplbond.CR)(.mu.-PPh2) (M = Fe, Ru, Os) Organometallics. ,vol. 7, pp. 969- 977 ,(1988) , 10.1021/OM00094A029
Andrew I Wallbank, John F Corrigan, Triply bridged dicopper-bis(trimethylsilylchalcogenolates): Synthesis and characterization of the series of helical complexes [(Me3SiE-Cu)2(µ-Ph2PCCPPh2-κ2P)3] (E = S, Se, Te) Canadian Journal of Chemistry. ,vol. 80, pp. 1592- 1599 ,(2002) , 10.1139/V02-032
Jesús R. Berenguer, María Bernechea, Juan Forniés, Ana García, Elena Lalinde, M. Teresa Moreno, Alkynyldiphenylphosphine d8 (Pt, Rh, Ir) complexes: contrasting behavior toward cis-[Pt(C6F5)2(THF)2]. Inorganic Chemistry. ,vol. 43, pp. 8185- 8198 ,(2004) , 10.1021/IC048987J
Alberto Albinati, Valeria Filippi, Piero Leoni, Lorella Marchetti, Marco Pasquali, Vincenzo Passarelli, Unprecedented reversible coupling of alkynyl and phosphide ligands on a dinuclear platinum framework Chemical Communications. pp. 2155- 2157 ,(2005) , 10.1039/B418893D
Martin A. Bennett, Jeffrey Castro, Alison J. Edwards, Mike R. Kopp, Eric Wenger, Anthony C. Willis, Preparation and Reactivity of Nickel(0) Complexes with η2-Coordinated Alkynylphosphines Organometallics. ,vol. 20, pp. 980- 989 ,(2001) , 10.1021/OM000895O