- Photocatalytic CO2 Reduction Using Cu(I) Photosensitizers with a Fe(II) Catalyst
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Photocatalytic systems developed from complexes with only abundant metals, i.e., CuI(dmp)(P)2+ (dmp =2,9-dimethyl-1,10-phenanthroline; P = phosphine ligand) as a redox photosensitizer and FeII(dmp)2(NCS)2 as a catalyst, produced CO as the main product by visible light irradiation. The best photocatalysis was obtained using a CuI complex with a tetradentate dmp ligand tethering two phosphine groups, where the turnover number and quantum yield of CO formation were 273 and 6.7%, respectively.
- Takeda, Hiroyuki,Ohashi, Kenji,Sekine, Akiko,Ishitani, Osamu
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supporting information
p. 4354 - 4357
(2016/05/09)
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- Synthesis, cyclization, and migration insertion oligomerization of CpFe(CO)2(CH2)3PPh2 in solution
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Cyclopentadienyldicarbonyl[(diphenylphosphino)propyl]iron (CpFe(CO) 2(CH2)3PPh2, FpP), containing both Fp and phosphine groups, was synthesized as a difunctional monomer for migration insertion polymerization (M
- Cao, Kai,Tsang, Brian,Liu, Yibo,Chelladural, Daniel,Power, William P.,Wang, Xiaosong
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p. 531 - 539
(2014/02/14)
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- Migration insertion polymerization (MIP) of cyclopentadienyldicarbonyldiphenylphosphinopropyliron (FpP): A new concept for main chain metal-containing polymers (MCPs)
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We report a conceptually new polymerization technique termed migration insertion polymerization (MIP) for main chain metal-containing polymer (MCP) synthesis. Cyclopentadienyldicarbonyldiphenylphosphinopropyliron (FpP) is synthesized and polymerized via M
- Wang, Xiaosong,Cao, Kai,Liu, Yibo,Tsang, Brian,Liew, Sean
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supporting information
p. 3399 - 3402
(2013/04/10)
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- Intramolecular P=S and P=N alkylation. General method for synthesizing 1,2-heteraphosphacyclanes
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Results have been generalized for investigations on the synthesis of 1,2-thiaphosphacyclanes by intramolecular P=S alkylation of ω-haloalkyl substituted compounds of four-coordinated phosphorus with a P=S bond. The method has been extended to nitrogen-con
- Aladzheva,Bykhovskaya,Lobanov,Petrovskii,Lysenko,Mastryukova
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- Phosphinoalkylnitriles: Synthesis and coordination behaviour at palladium centres
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Phosphinoalkylnitriles R2P-(CH2)n-CN {R = isopropyl (ipr), phenyl (ph), cyclohexyl (chex), n = 3, 6, 10} have been prepared starting from the corresponding secondary phosphines in an easy three step synthesis. All new compounds were characterized by their 1H-, 13C and 31P NMR data. Some of these new P, N ligands were used to prepare complexes [{R2P-(CH2)n-CN}2PdCl2] which were also identified by their NMR data. In addition the crystal structures of three derivatives, [{ipr2P-(CH2)3-CN} 2PdCl2] 7a, [{ph2P-(CH2)3-CN}2PdCl2] 7b and [{ph2P-(CH2)6-CN}2PdCl2] 8b were determined by X-ray analysis. The coordination mode of the phosphinoalkylnitriles in these complexes was found to be P-bonded resulting in a trans configuration. Palladium catalysts with 5a as ligund show high activies in the co-oligomerization of butadiene and carbon dioxide. The δ-lactone 11a is formed under very mild conditions.
- Pitter, Stephan,Dinjus, Eckhard,Jung, Beate,Go?rls, Helmar
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p. 934 - 946
(2007/10/03)
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- Synthesis of a new family of water-soluble tertiary phosphine ligands and of their rhodium(I) complexes; olefin hydrogenation in aqueous and biphasic media
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The series of phosphonium phosphines (Ph2P(CH2)nPMe3>X (n = 2, 3, 6, 10; N = NO3-, Cl-, PF6-), henceforth II-, III-, VI- and X-phosphos respectively, have been prepared and characterized.The ligands react with 2 (NBD = norbornadiene) to form the complexes X, one of which, PF6, has been characterized crystallographically.The 1:1 complexes X react with a second equivalent of ligand to form the complexes X, which form very active olefin hydrogenation catalysts in aqueous and aqueous-organic biphasic systems.The effect of chain length on activity is very significant, the complex of VI-phosphos forming the most active catalyst.
- Renaud, Eric,Russell, Robert B.,Fortier, Suzanne,Brown, Stephen J.,Baird, Michael C.
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p. 403 - 415
(2007/10/02)
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- Oligophosphine Ligands, I Convenient Syntheses of the Trimethylene-linked Triphosphines RP2 and their Precursors Ph2P(CH2)3P(H)R (R=Ph, Me)
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The secondary-tertiary diphosphines Ph2P(CH2)3P(H)Ph (2) and Ph2P(CH2)3P(H)Me (3) have been prepared from Ph2P(CH2)3Cl (1) and NaP(H)Ph or LiP(H)Me, respectively.Metallation of 2 and 3 with n-butyl lithium and further reaction of the lithio-derivatives with one equivalent of 1 yields PhP2 (4) and MeP2 (5).The tritertiary phosphines 4 and 5 have likewise been obtained from RPLi2 (R=Ph, Me) and two equivalents of 1.The synthesis of 4 from PhPCl2 and two equivalents of the Grignard reagent of 1 is also reported.Each of the phosphines 1-5 was characterized by NMR and mass spectroscopy. - Keywords: Secondary-tertiary Diphosphines, Tritertiary Phosphines, Preparation, NMR Spectra, Mass Spectra
- Arpac, Ertugrul,Dahlenburg, Lutz
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p. 146 - 152
(2007/10/02)
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