The title compound bis（1-（4-（dimethylamino）benzylidene）-4-phenylthiosemicar-bazato）-palladium（Ⅱ）（PdL2） was obtained by reacting 1-（4-（dimethylamino）benzylidene）-4-phenyl-thiosemicarbazide with dichloro...The title compound bis（1-（4-（dimethylamino）benzylidene）-4-phenylthiosemicar-bazato）-palladium（Ⅱ）（PdL2） was obtained by reacting 1-（4-（dimethylamino）benzylidene）-4-phenyl-thiosemicarbazide with dichlorobis（benzonitrile）palladium（Ⅱ） in methanol,and its structure was characterized by single-crystal X-ray diffraction.The crystal of PdL2 was obtained in dimethyl-formamide（DMF） solvent with solvent molecules involved in the cell and crystallizes in the monoclinic system,space group C2 with a = 18.485（15）,b = 7.090（5）,c = 17.595（11） ,β = 121.21（3）o,V = 1972（2） 3,Z = 2,Mr = 847.40,Dc = 1.427 g/cm3,μ = 0.624 mm-1,F（000） = 880,R = 0.0607 and wR = 0.1358.The Pd atom adopts a distorted square planar coordination geometry with two Pd-N and two Pd-S bonds.The ligand loses a proton from its tautomeric thiol form and coordinates to the Pd atom via mercapto sulfur and the imine nitrogen atom,which binds to palladium as bidentate N,S-donors forming five-membered chelate rings.The complex formed hydrogen bonding interaction with solvent DMF molecules from the hydrogen of phenylamine to the oxygen of DMF and several intramolecular hydrogen bonds.Pd（Ⅱ） perturbed ligand π-π＊ transition and metal-to-ligand charge transfer（MLCT） transition are observed in its electronic absorption spectra.The complex exhibits intraligand 1π-π＊（IL） state and MLCT state dual fluorescent emissions in organic solvent at room temperature.展开更多
PdCl 2 (CH 3) 3CC 6H 4SC 4H 9- S 2, C 28 H 44 Cl 2S 2Pd, M r =622.0756, triclinic, space group P1, a=10.403(2), b=12.346(2), c=13.475(2) , α=89 11(1)°, β=75.44(1)°, γ=69.52(...PdCl 2 (CH 3) 3CC 6H 4SC 4H 9- S 2, C 28 H 44 Cl 2S 2Pd, M r =622.0756, triclinic, space group P1, a=10.403(2), b=12.346(2), c=13.475(2) , α=89 11(1)°, β=75.44(1)°, γ=69.52(1)°, V=1564.2(5) 3, Z=2, D c =1.32 g/cm 3, Mo Kα radiation, μ =9.00 cm -1 , F(000)=647.95, R =0.0316 for 4561 observed reflections with I≥3σ(I) . Pd(Ⅱ) is coordinated by two chloride atoms and two sulfur atoms of organic ligands, forming a rhombic quadrilateral plane with Pd-S of 2.325(1) and Pd-Cl of 2.295(1) .展开更多
Chemical Department,Liaoning University,Shenyang110036)abstract:( 3 Chemistry Department,Northeast Normal University,Changchun130024)abstract:The mixed l igand complex[Pd(biqu)abstract:(pmal)abstract:]·H 2 O(wher...Chemical Department,Liaoning University,Shenyang110036)abstract:( 3 Chemistry Department,Northeast Normal University,Changchun130024)abstract:The mixed l igand complex[Pd(biqu)abstract:(pmal)abstract:]·H 2 O(where biqu is2,2’-biquinoline,pmal is phenethylmalonate)abstract:has been synthesi zed and its interaction with sperm DNA was determined by fluorescent spectra?UV -Vis spectra and CD-spectra.The binding constant(K b )abstract:of the complex and sperm DNA is1.26×10 4 and its interaction with pBR322plasmid DNA was also determined by gel electr ophoresis.The results show that the complex interact with DNA mainly by展开更多
基金supported by the National Basic Research Program of China (973 Program,2007CB815301)NSF (No. 20721001)the Science & Technology Innovation Project of Xiamen University (No. K70025)
文摘The title compound bis（1-（4-（dimethylamino）benzylidene）-4-phenylthiosemicar-bazato）-palladium（Ⅱ）（PdL2） was obtained by reacting 1-（4-（dimethylamino）benzylidene）-4-phenyl-thiosemicarbazide with dichlorobis（benzonitrile）palladium（Ⅱ） in methanol,and its structure was characterized by single-crystal X-ray diffraction.The crystal of PdL2 was obtained in dimethyl-formamide（DMF） solvent with solvent molecules involved in the cell and crystallizes in the monoclinic system,space group C2 with a = 18.485（15）,b = 7.090（5）,c = 17.595（11） ,β = 121.21（3）o,V = 1972（2） 3,Z = 2,Mr = 847.40,Dc = 1.427 g/cm3,μ = 0.624 mm-1,F（000） = 880,R = 0.0607 and wR = 0.1358.The Pd atom adopts a distorted square planar coordination geometry with two Pd-N and two Pd-S bonds.The ligand loses a proton from its tautomeric thiol form and coordinates to the Pd atom via mercapto sulfur and the imine nitrogen atom,which binds to palladium as bidentate N,S-donors forming five-membered chelate rings.The complex formed hydrogen bonding interaction with solvent DMF molecules from the hydrogen of phenylamine to the oxygen of DMF and several intramolecular hydrogen bonds.Pd（Ⅱ） perturbed ligand π-π＊ transition and metal-to-ligand charge transfer（MLCT） transition are observed in its electronic absorption spectra.The complex exhibits intraligand 1π-π＊（IL） state and MLCT state dual fluorescent emissions in organic solvent at room temperature.
文摘PdCl 2 (CH 3) 3CC 6H 4SC 4H 9- S 2, C 28 H 44 Cl 2S 2Pd, M r =622.0756, triclinic, space group P1, a=10.403(2), b=12.346(2), c=13.475(2) , α=89 11(1)°, β=75.44(1)°, γ=69.52(1)°, V=1564.2(5) 3, Z=2, D c =1.32 g/cm 3, Mo Kα radiation, μ =9.00 cm -1 , F(000)=647.95, R =0.0316 for 4561 observed reflections with I≥3σ(I) . Pd(Ⅱ) is coordinated by two chloride atoms and two sulfur atoms of organic ligands, forming a rhombic quadrilateral plane with Pd-S of 2.325(1) and Pd-Cl of 2.295(1) .
文摘Chemical Department,Liaoning University,Shenyang110036)abstract:( 3 Chemistry Department,Northeast Normal University,Changchun130024)abstract:The mixed l igand complex[Pd(biqu)abstract:(pmal)abstract:]·H 2 O(where biqu is2,2’-biquinoline,pmal is phenethylmalonate)abstract:has been synthesi zed and its interaction with sperm DNA was determined by fluorescent spectra?UV -Vis spectra and CD-spectra.The binding constant(K b )abstract:of the complex and sperm DNA is1.26×10 4 and its interaction with pBR322plasmid DNA was also determined by gel electr ophoresis.The results show that the complex interact with DNA mainly by
