1192552-83-2Relevant articles and documents
Construction of [Ag2X2]-based complexes from reactions of Ag(i) salts with N-diphenylphosphanylmethyl-4-aminopyridine: Isolation, structures, and luminescent properties
Li, Ni-Ya,Ren, Zhi-Gang,Liu, Dong,Yuan, Rong-Xin,Wei, Li-Pei,Zhang, Liang,Li, Hong-Xi,Lang, Jian-Ping
, p. 4213 - 4222 (2010)
Reactions of N-diphenylphosphanylmethyl-4-aminopyridine (dppmapy) with K[Ag(CN)2], Ag(dca) (dca = dicyanamide), AgSCN, AgCl, AgBr or AgI gave rise to six [Ag2X2]-based (X = CN-, dca, SCN-, Cl-, Br- and I-) compounds, [{Ag2(CN)2(dppmapy)}·0.5CHCl3] n (1), [Ag2L2(dppmapy)2]n (2: L = dca; 3: L = SCN), [{Ag2L2(dppmapy) 2}·sol]n (4: L = Cl, sol = 0.5MeOH·0. 5CH2Cl2; 5: L = Br, sol = 2CHCl3), and [Ag 2I2(dppmapy)4]·3MeOH (6). Complexes 1-6 were characterized by elemental analysis, IR, powder X-ray diffraction (PXRD), and single crystal X-ray diffraction. Compound 1 has a one-dimensional (1D) spiral chain constructed by bridging the [(CN)Ag(μ-CN)Ag] fragments via dppmapy ligands. In 2, 3 and 4, each [Ag2X2] (X = dca, SCN, Cl) fragment is linked by dppmapy bridges to the other two equivalent ones to form a 1D chain containing 16-membered rings (2) or a 1D double chain containing 20-membered rings (3) or a 1D spiral chain containing 20-membered rings (4). Compound 5 possesses a two dimensional (2D) (4,4) network consisting of 36-membered metallomacrocycles in which each [Ag2Br2] fragment acts as a unique planar four-connecting node to link the other four equivalent ones via dppmapy bridges. Complex 6 has a [Ag2I 2] unit with a pair of monodentate dppmapy ligands coordinated at each Ag center. The photoluminescent properties of 1-6 in the solid state at ambient temperature were also investigated.
Interaction of free functional group with platinum(II) center in cyclometalated complexes: A structural and photophysical property investigation
Zhang, Jun-Feng,Xin, Gan,Fu, Wen-Fu,Xu, Han,Li, Li
body text, p. 338 - 345 (2010/05/01)
A series of flexible multidentate ligands containing N,P-donor, 2-[N-(diphenylphosphino)methyl]amino-pyridine (L1), 2-[N-bi-(diphenylphosphino) methyl]amino-pyridine (L2), 2-[N-(diphenylphosphino)methyl]amino-7-methyl-1,8-naphthyridine (L3) and 4-[(N-diphenylphosphino)methyl]amino-pyridine) (L4) have been synthesized. The mono- and dinuclear cyclometalated platinum(II) complexes [Pt(C^N^N)L1]ClO4 (HC^N^N = 6-phenyl-2,2′-bipyridine), [Pt2(C^N^N)2L1](ClO4)2, [Pt2(C^N^N)2L2](ClO4)2, [Pt(C^N^N)L3]ClO4 and [Pt2(C^N^N)2L4](ClO4)2 were prepared and their structures determined by X-ray crystal analysis. These complexes exhibit long-lived bright orange emissions ranging from 560 to 610 nm in the solid state at room temperature. In solution, dinuclear complexes have emissions with higher quantum yields than mononuclear complexes. This can be attributed to intramolecular interaction of free functional group with Pt(II) at axial position, resulting in the quenching of phosphorescence for platinum(II) complexes in the 3MLCT excited state.
