4376-01-6Relevant articles and documents
Synthesis of 1,3,5,2λ5-triazaphosphinines by intramolecular cyclisation of (N-cyanophosphorimidoyl)guanidines and diguanidinophosphonium chlorides
Inguimbert, Nicolas,Jaeger, Lothar,Taillefer, Marc,Biedermann, Matthias,Cristau, Henri-Jean
, p. 4870 - 4876 (2004)
The sodium phosphonium diylide Na[Ph2P(NCN)2] (3) - the first example of a stabilised phosphonium diylide - was synthesised by treatment of sodium diphenylphosphide with 2 equiv. of cyanic azide. Compound 3 reacted with alkyl- and ar
Migration insertion polymerization (MIP) of cyclopentadienyldicarbonyldiphenylphosphinopropyliron (FpP): A new concept for main chain metal-containing polymers (MCPs)
Wang, Xiaosong,Cao, Kai,Liu, Yibo,Tsang, Brian,Liew, Sean
, p. 3399 - 3402 (2013)
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
Experimental and theoretical studies of highly emissive dinuclear Cu(i) halide complexes with delayed fluorescence
Kang, Liju,Chen, Jin,Teng, Teng,Chen, Xu-Lin,Yu, Rongmin,Lu, Can-Zhong
, p. 11649 - 11659 (2015)
A series of luminescent homo-dinuclear Cu(i) halide complexes, [PPh2PAr2Cu(μ-X)2CuPPh2PAr2] (X = I (1), Br (2), Cl (3)) (PPh2PAr2 = (1-bis(2-methylphenyl)phosphino-2-diphenylphos
Ready Approach to Organophosphines from ArCl via Selective Cleavage of C-P Bonds by Sodium
Ye, Jingjing,Zhang, Jian-Qiu,Saga, Yuta,Onozawa, Shunya,Kobayashi, Shu,Sato, Kazuhiko,Fukaya, Norihisa,Han, Li-Biao
supporting information, p. 2682 - 2694 (2020/07/30)
The preparation, application, and reaction mechanism of sodium phosphide R2PNa and other alkali metal phosphides R2PM (M = Li and K) have been studied. R2PNa could be prepared, accurately and selectively, via the reactions of SD (sodium finely dispersed in mineral oil) with phosphinites R2POR′ and chlorophosphines R2PCl. R2PNa could also be prepared from triarylphosphines and diarylphosphines via the selective cleavage of C-P bonds. Na was superior to Li and K for these reactions. R2PNa reacted with a variety of ArCl to efficiently produce R2PAr. ArCl is superior to ArBr and ArI since they only gave low yields of the products. In addition, Ph2PNa is superior to Ph2PLi and Ph2PK since Ph2PLi did not produce the coupling product with PhCl, while Ph2PK only gave a low yield of the product. An electron-withdrawing group on the benzene ring of ArCl greatly accelerated the reactions with R2PNa, while an alkyl group reduced the reactivity. Vinyl chloride and alkyl chlorides RCl also reacted efficiently. While t-BuCl did not produce the corresponding product, admantyl halides could give the corresponding phosphine in high yields. A wide range of phosphines were prepared by this method from the corresponding chlorides. Unsymmetric phosphines could also be conveniently generated in one pot starting from Ph3P. Chiral phosphines were also obtained in good yields from the reactions of menthyl chlorides with R2PNa. Possible mechanistic pathways were given for the reductive cleavage of R3P by sodium generating R2PNa and the substitution reactions of R2PNa with ArCl generating R2PAr.
Hard-and-soft phosphinoxide receptors for f-element binding: structure and photophysical properties of europium(iii) complexes
Borisova, Nataliya E.,Kharcheva, Anastasia V.,Patsaeva, Svetlana V.,Korotkov, Leonid A.,Bakaev, Sergey,Reshetova, Marina D.,Lyssenko, Konstantin A.,Belova, Elena V.,Myasoedov, Boris F.
, p. 2238 - 2248 (2017/02/26)
New phosphinoyl-containing tetradentate heterocycles preorganised for metal ion binding were designed and prepared in high yields. The X-ray structures of two allied phosphinoyl-bearing 2,2′-bipyridyl and phenanthroline ligands, as well as closely related structures of 2,6-bis(diphenylphosphinoyl)pyridine and 9-(diphenylphosphinoyl)-1,10-phenanthroline-2-one, are reported. Complexes of nitrates of several lanthanides and trifluoroacetate of Eu(iii) with two phosphinoyl-bearing 2,2′-bipyridyl and phenanthroline ligands were isolated and characterised. The first structures of lanthanide complexes with phosphinoyl-bearing 2,2′-bipyridyl and phenanthroline ligands are reported. The nature of the counter-ion is crucial for the coordination environment of the metal ion. The photophysical properties of the complexes differring in both the nature of the ligand and counter-ion were investigated. The photophysical properties of the complexes are strongly ligand- and counter-ion-dependent. Absorbance and luminescence excitation spectra of complexes showed main peaks in the UV range which correspond to the absorption of light by the ligand and these are ligand-dependent. Luminescence spectra of complexes show typical europium emission in the red region with a high quantum yield, which orresponds to the transitions5D0→7FJ (J = 0-6). The value of deviation of the components of5D0 →7F2 and5D0 →7F1 transitions from the inversion centre shows a larger dependence on the counter-ion than on the nature of the ligand. The value of the luminescence quantum yield is larger for europium complexes with 2,2′-bipyridyl-based ligands and NO3 counter-ions than for complexes with phenanthroline-based ligands and NO3 counter-ions. A low dependence of the luminescence lifetime of Eu complexes on the nature of the ligand has been demonstrated: values in the solid state were in the range 1.1-2.0 ms.