Three half-sandwich ruthenium（II） p-cymene complexes containing naphthalenebased Schiff base ligands [Ru（p-cymene）LCl]（2 a～2 c） have been synthesized and characterized. Both Schiff-base ligands and ruthenium co...Three half-sandwich ruthenium（II） p-cymene complexes containing naphthalenebased Schiff base ligands [Ru（p-cymene）LCl]（2 a～2 c） have been synthesized and characterized. Both Schiff-base ligands and ruthenium complexes were fully characterized by ^1H and ^13C NMR spectra, mass spectrometry and infrared spectrometry. The molecular structure of ruthenium complex 2 b was confirmed by single-crystal X-ray diffraction methods. For the complex： C（24H23ClN2ORu, Mr = 524.02, monoclinic, space group P21/c, a = 12.3888（4）, b = 17.3296（6）, c = 20.7744（7）A°, β = 92.8000（10）°, V = 4454.8（3） A°^3, Z = 8, Dc = 1.563 g/cm^3, μ = 0.936 mm^-1, F（000） = 2128, S = 1.154, the final R = 0.0309 and w R = 0.0703. Moreover, these ruthenium complexes are active catalysts for the hydrogenation of nitroarenes to aromatic anilines in the presence of sodium tetrahydroborate（NaBH4） reducing agent.展开更多
Three Ru(Ⅱ) complexes [Ru(bpy)2(1-IQTNH)](ClO4)2 (1), [Ru(bpy)2(2-QTNH)](ClO4)2 (2) and [Ru(bpy)2(3-IQTNH)](ClO4)2 (3) (bpy = 2,2′-bipyridine, 1-IQTNH = 6-(isoquinolin-1-yl)-1,3,5-triazine-2,4-diamine, 2-QTNH = 6-(q...Three Ru(Ⅱ) complexes [Ru(bpy)2(1-IQTNH)](ClO4)2 (1), [Ru(bpy)2(2-QTNH)](ClO4)2 (2) and [Ru(bpy)2(3-IQTNH)](ClO4)2 (3) (bpy = 2,2′-bipyridine, 1-IQTNH = 6-(isoquinolin-1-yl)-1,3,5-triazine-2,4-diamine, 2-QTNH = 6-(quinolin-2-yl)-1,3,5-triazine-2,4-diamine, 3-IQTNH = 6-(isoquinolin-3-yl)-1,3,5-triazine-2,4-diamine) have been synthesized and characterized by elemental analysis, 1H NMR spectroscopy, electrospray ionization mass spectrometry and X-ray crystallography. The electrochemical and spectroscopic properties of the complexes differ from those of [Ru(bpy)3]2+ owing to the structural differences between the ligands and their complexes.展开更多
A novel dimeric complex [Ru3 (μ3-O)(μ-CH3COO)(CO)]2(μ-dppf)(μ-odppf)(dppf = 1, 1'-bis(diphenylphosphio)ferrocene, odppf = 1, 1'-bis(oxodiphenylphosphoranyl)ferrocene) (1) of oxo-centered triruthenium-aecta...A novel dimeric complex [Ru3 (μ3-O)(μ-CH3COO)(CO)]2(μ-dppf)(μ-odppf)(dppf = 1, 1'-bis(diphenylphosphio)ferrocene, odppf = 1, 1'-bis(oxodiphenylphosphoranyl)ferrocene) (1) of oxo-centered triruthenium-aectate cluster units was synthesized and characterized by X-ray crystallography. Compound 1 exhibits a cyclic structure formed by linkages of two triruthenium cluster units Ru3 (μ3-O)(μ-CH3COO)6(CO) through dppf and odppf ligands, respectively. The diameter of the molecular loop is ca. 1.0 nm.展开更多
Crystal structure of the title compound, macrocyclic tetrabenzo(b ,f,J, n ) [ 1, 5, 9, 1 3] tetraazacyclohexadecine (TAAB ) N, N'-dimethyl formamide(DMF) ruthenium (Ⅱ) complex, [Ru (taab) (DMF )_2]·[ (ClO_4 ...Crystal structure of the title compound, macrocyclic tetrabenzo(b ,f,J, n ) [ 1, 5, 9, 1 3] tetraazacyclohexadecine (TAAB ) N, N'-dimethyl formamide(DMF) ruthenium (Ⅱ) complex, [Ru (taab) (DMF )_2]·[ (ClO_4 )_2](C_(34) H_(34)Cl)2N_6O_(10)Ru , M_r= 874. 66) is monoclinic with space group C2/c and a =36. 689(2) , b=18. 173 (8 ),. c= 10. 666(3)A, β=102. 6(4)°, V=6939. 6 A￣3 , D_c= 1. 67 gcm￣(-3), Z=8. The structural solutions and refinements based on 3183 reflections (I≥3σ(I)) converged at R= 0. 071 , R_w = 0. 074. The TAAB macrocyclic ligand has a saddle-shaped appearance,the ruthenium(Ⅱ) is located on the plane of the four nitrogen atoms of the TAAB with the two perpendicular Ru(Ⅱ)-O bonds coordinated to the DMF molecules.展开更多
A variety of lanthanocene complexes, e.g. chlorides, hydrocarbyls, amides, hydrides and divalent derivatives, were synthesized by using a series of designed cyclopentadienyl, indenyl and fluorenyl ligands with rin...A variety of lanthanocene complexes, e.g. chlorides, hydrocarbyls, amides, hydrides and divalent derivatives, were synthesized by using a series of designed cyclopentadienyl, indenyl and fluorenyl ligands with ring bridges or dornor functionalized sidearms. X Ray crystallographic analyses reveal the formation of intramolecular coordination bonds between central metals and heteroatoms (O, N) in sidearms or bridging chains. Some applications of these complexes are also discussed in this account.展开更多
At room temperature, the reducing reaction between the bis(diphenylphosphino)butane (dppb) ligand and the compound (tfac=2-thenoyltrifluoroacetone) gave luminescent copper complex [Cu(dppb)(tfac)]2. They have been cha...At room temperature, the reducing reaction between the bis(diphenylphosphino)butane (dppb) ligand and the compound (tfac=2-thenoyltrifluoroacetone) gave luminescent copper complex [Cu(dppb)(tfac)]2. They have been characterized by physicochemical and spectroscopic methods. Crystal structure of the title complex shows that 2-thenoyltrifluoroacetone behaves as chelating ligand and dppb coordinates as bridging bidentate ligand to Cu atoms in the newly prepared copper complex. The crystal is monoclinic, space group P21/n, with cell parameters a = 1.031 0(2) nm, b = 1.873 0(4) nm, c = 1.763 0(4) nm, β = 95.10(3)°, Z = 4, V = 3.391 0(12) nm3, R = 0.060 3, wR = 0.143 4. CCDC: 228393.展开更多
基金financially supported by the National Nature Science Foundation of China(21102004)Natural Science Foundation of Anhui Province(1708085MB44)the Natural Science Foundation of the Anhui Higher Education Institutions(KJ2016A845)
文摘Three half-sandwich ruthenium（II） p-cymene complexes containing naphthalenebased Schiff base ligands [Ru（p-cymene）LCl]（2 a～2 c） have been synthesized and characterized. Both Schiff-base ligands and ruthenium complexes were fully characterized by ^1H and ^13C NMR spectra, mass spectrometry and infrared spectrometry. The molecular structure of ruthenium complex 2 b was confirmed by single-crystal X-ray diffraction methods. For the complex： C（24H23ClN2ORu, Mr = 524.02, monoclinic, space group P21/c, a = 12.3888（4）, b = 17.3296（6）, c = 20.7744（7）A°, β = 92.8000（10）°, V = 4454.8（3） A°^3, Z = 8, Dc = 1.563 g/cm^3, μ = 0.936 mm^-1, F（000） = 2128, S = 1.154, the final R = 0.0309 and w R = 0.0703. Moreover, these ruthenium complexes are active catalysts for the hydrogenation of nitroarenes to aromatic anilines in the presence of sodium tetrahydroborate（NaBH4） reducing agent.
基金supported by the National Basic Research Program of China (2007CB815306)the National Natural Science Foundation of China (20771105, 20871122)+1 种基金the Key Project of Ministry of Education (108103)the Natural Science Foundation of Guangdong Province (9351027501000003)
文摘Three Ru(Ⅱ) complexes [Ru(bpy)2(1-IQTNH)](ClO4)2 (1), [Ru(bpy)2(2-QTNH)](ClO4)2 (2) and [Ru(bpy)2(3-IQTNH)](ClO4)2 (3) (bpy = 2,2′-bipyridine, 1-IQTNH = 6-(isoquinolin-1-yl)-1,3,5-triazine-2,4-diamine, 2-QTNH = 6-(quinolin-2-yl)-1,3,5-triazine-2,4-diamine, 3-IQTNH = 6-(isoquinolin-3-yl)-1,3,5-triazine-2,4-diamine) have been synthesized and characterized by elemental analysis, 1H NMR spectroscopy, electrospray ionization mass spectrometry and X-ray crystallography. The electrochemical and spectroscopic properties of the complexes differ from those of [Ru(bpy)3]2+ owing to the structural differences between the ligands and their complexes.
基金This work was supported financially by the NNSF of China(No.20171044,20273074 and 20391001)NSF of Fujian Province(E03 10029).
文摘A novel dimeric complex [Ru3 (μ3-O)(μ-CH3COO)(CO)]2(μ-dppf)(μ-odppf)(dppf = 1, 1'-bis(diphenylphosphio)ferrocene, odppf = 1, 1'-bis(oxodiphenylphosphoranyl)ferrocene) (1) of oxo-centered triruthenium-aectate cluster units was synthesized and characterized by X-ray crystallography. Compound 1 exhibits a cyclic structure formed by linkages of two triruthenium cluster units Ru3 (μ3-O)(μ-CH3COO)6(CO) through dppf and odppf ligands, respectively. The diameter of the molecular loop is ca. 1.0 nm.
文摘Crystal structure of the title compound, macrocyclic tetrabenzo(b ,f,J, n ) [ 1, 5, 9, 1 3] tetraazacyclohexadecine (TAAB ) N, N'-dimethyl formamide(DMF) ruthenium (Ⅱ) complex, [Ru (taab) (DMF )_2]·[ (ClO_4 )_2](C_(34) H_(34)Cl)2N_6O_(10)Ru , M_r= 874. 66) is monoclinic with space group C2/c and a =36. 689(2) , b=18. 173 (8 ),. c= 10. 666(3)A, β=102. 6(4)°, V=6939. 6 A￣3 , D_c= 1. 67 gcm￣(-3), Z=8. The structural solutions and refinements based on 3183 reflections (I≥3σ(I)) converged at R= 0. 071 , R_w = 0. 074. The TAAB macrocyclic ligand has a saddle-shaped appearance,the ruthenium(Ⅱ) is located on the plane of the four nitrogen atoms of the TAAB with the two perpendicular Ru(Ⅱ)-O bonds coordinated to the DMF molecules.
文摘A variety of lanthanocene complexes, e.g. chlorides, hydrocarbyls, amides, hydrides and divalent derivatives, were synthesized by using a series of designed cyclopentadienyl, indenyl and fluorenyl ligands with ring bridges or dornor functionalized sidearms. X Ray crystallographic analyses reveal the formation of intramolecular coordination bonds between central metals and heteroatoms (O, N) in sidearms or bridging chains. Some applications of these complexes are also discussed in this account.
文摘At room temperature, the reducing reaction between the bis(diphenylphosphino)butane (dppb) ligand and the compound (tfac=2-thenoyltrifluoroacetone) gave luminescent copper complex [Cu(dppb)(tfac)]2. They have been characterized by physicochemical and spectroscopic methods. Crystal structure of the title complex shows that 2-thenoyltrifluoroacetone behaves as chelating ligand and dppb coordinates as bridging bidentate ligand to Cu atoms in the newly prepared copper complex. The crystal is monoclinic, space group P21/n, with cell parameters a = 1.031 0(2) nm, b = 1.873 0(4) nm, c = 1.763 0(4) nm, β = 95.10(3)°, Z = 4, V = 3.391 0(12) nm3, R = 0.060 3, wR = 0.143 4. CCDC: 228393.
