The steric and electrostatic effects of N1 substituted groups of fluoroquinolones and the way to find the new group with high activities by Comparative Molecular Field Analysis (CoMFA) have been studied. The results i...The steric and electrostatic effects of N1 substituted groups of fluoroquinolones and the way to find the new group with high activities by Comparative Molecular Field Analysis (CoMFA) have been studied. The results indicated that: (1) The activity of N1 position was mainly determinted by the steric effect, but the electrostatic effect is also important; (2) No new N1 substituted group with higher activity was found from the coefficient plots of CoMFA, which reflected the experimental Iesults of late of years.展开更多
The title complex, [Cu(Hsal)2(py)2], was synthesized by layered solution technique and structurally characterized by single crystal X ray. The copper atom has a square pyramidal geometry and the coordination number is...The title complex, [Cu(Hsal)2(py)2], was synthesized by layered solution technique and structurally characterized by single crystal X ray. The copper atom has a square pyramidal geometry and the coordination number is five. The molecular structure is linear one dimensional network. There is a stacking effect between pyridine ligands of neighbouring 1 D chains and the molecular structure is extended into two dimensional stacking network. Two salicylates in the complex have a position of crab pincers like, in which one salicylate is unidentate and another coordinates through the carboxylate group and phenyl group unidentately.展开更多
The quaternary complex, [Ce（CH2ClCOO）2（NO3）（phen）（H2O）]2, was synthesized. Interestedly, the title compound is a dimer comparing with the 1D polymer [La（CH2ClCOO）2（NO3）（phen）·（H2O）]n and powder co...The quaternary complex, [Ce（CH2ClCOO）2（NO3）（phen）（H2O）]2, was synthesized. Interestedly, the title compound is a dimer comparing with the 1D polymer [La（CH2ClCOO）2（NO3）（phen）·（H2O）]n and powder compound [Nd（CH2ClCOO）2（NO3）（phen）]. In the title compound there is a monodentate NO-3, which is a first example in the all synthesized quaternary mixed anion complexes, and the NO-3 extended the complex into a 2D network with water from other molecules by inter-molecular hydrogen bonds. The intermolecular hydrogen bonds lead to the weaker Ce—O（COO）, Ce—O（NO3） and Ce—N bonds comparing with other quaternary mixed anion complexes of cerium. Also the stacking effect, which makes the compound more stable in the situation of weaker Ce—O and Ce—N bonds, was first found in the series compounds.展开更多
Several bisazo pigments were synthesized by coupling 2, 7-diaminoflurenone with avariety of 2-hydroxy-3-naphthanilides. The results of elementary analysis and iR indicatedthat the synthesis and purification were succe...Several bisazo pigments were synthesized by coupling 2, 7-diaminoflurenone with avariety of 2-hydroxy-3-naphthanilides. The results of elementary analysis and iR indicatedthat the synthesis and purification were successful. The UV spectra of the pigments in DMFrevealed that the visible absorption bands of Azo-3 and Azo-4 were red-shifted obviouslywhich can be attributed to the significant conjugate effect. When the pigments in DMF wereirradiated using an infrared lamp, the properties of photochrism were observed. When theirradiation was carried out by using a high pressure mercury lamp, the absorption of thesolutions was decreased. The xerographic performence of Azo-3 in combination with two chargetransport molecules [ 4-(diethylamino ) benzaldehyde diphenyl-hydrozone (DEH ) and4(dimethylamino) benzaldehyde phenylnaphthylhydrozone (DENH )] was investigated. Wefound Azo-3 has a better photosensitivity by using DENH as charge transport molecule andpoly(methyl methacrylate) (PMMA) as charge blocking layer.展开更多
A new binuclear copper ?complex with 1,10-phen and fluoroquinolone ligands, [Cu2(cfc)2(phen)2(pip)](NO3)2(CO)2,was synthesized and its crystal structure was solved.The formula of the complex is C28H24ClCuFN5O7, <IM...A new binuclear copper ?complex with 1,10-phen and fluoroquinolone ligands, [Cu2(cfc)2(phen)2(pip)](NO3)2(CO)2,was synthesized and its crystal structure was solved.The formula of the complex is C28H24ClCuFN5O7, <IMG SRC="IMAGE/09150030. JPG" HEIGHT=11 WIDTH=12>and the crystallography data are as follows, triclinic, space group , a=0.80372(6)nm, b=0.94712 (7)nm, c=1.67826(13)nm, α=88.5650(10)° , β=80.9920(10)°, γ=70.2780(10)°, V=1.18722(6)nm3, Z=2, D=1.848g·cm-3, F(0 00)=676. R1=0.0627 and wR2=0.1684 (I >2σ(I)). The copper atom is five-coordina te with square-based pyramidal geometry and involves two nitrogen atoms from ph en, two oxygen atoms from cfc and one nitrogen atom from pip anion. The stacking effect between cfc and phen ligands from two neighboring molecules was observed . FT-IR spectrum of the complex was also discussed. Both ligand and complex wer e assayed against gram-positive and gram-negative bacteria by doubling dilutio ns method; the complex shows the same minimal inhibitory concentration (MIC) as the corresponding ligand against S. Aureus, E. Coli and M. Lutens bacteria. The inhibitory effect of the ligand and complex on leukemia HL-60 cell line and liv er cancer BEL-7402 cell line have been measured by using MTT (Methyl-Thiazol- Tetrozolium) and SRB (Sulphurhodamin B) assay methods, respectively. The results indicated that the complex has strong inhibitory effect on HL-60 and BEL-7402 cell line. CCDC: 203964.展开更多
A new binuclear copper?complex containing fluoroquinolone ligand, [Cu2（cfc）2（bpy）2（pip）]·6H2O, was synthesized and its crystal structure was solved. The formula of the complex is C25H26ClCuFN4O6, and the cr...A new binuclear copper?complex containing fluoroquinolone ligand, [Cu2（cfc）2（bpy）2（pip）]·6H2O, was synthesized and its crystal structure was solved. The formula of the complex is C25H26ClCuFN4O6, and the crystallography data are as follows, triclinic, space group ,a=6.874（2）?, b=10.761（3）?, c=17.976（5）?, α=80.071（6）°, β=85.253（6）°, γ=79.109（6）°, V=1284.5（6）?3, D=1.542g·cm-3, F（000）=614, and Z=2. R1=0.0776 and wR2=0.2235（I >2σ（I））. The copper atom is five coordinate with square based pyramidal geometry and involves two nitrogen atoms from bpy, two oxygen atoms from cfc and one nitrogen atom from pip anion. The stacking effect between cfc and bpy ligands from two neighboring molecules was observed. Both ligand and complex were assayed against gram positive and gram negative bacteria by doubling dilutions method, the complex shows the same minimal inhibitory concentration （MIC） as the corresponding ligand against S.Aureus and E.Coli bacteria. The inhibitory effect of the ligand and complex on leukemia HL 60 cell line and liver cancer BEL 7402 cell line have been measured by using MTT （Methyl Thiazol Tetrozolium） and SRB （Sulphurhodamin B） assay methods. The resultsindicated that the complex has strong inhibitory effect on HL 60 cell line and on BEL 7402 cell line. CCDC: 191087.展开更多
文摘The steric and electrostatic effects of N1 substituted groups of fluoroquinolones and the way to find the new group with high activities by Comparative Molecular Field Analysis (CoMFA) have been studied. The results indicated that: (1) The activity of N1 position was mainly determinted by the steric effect, but the electrostatic effect is also important; (2) No new N1 substituted group with higher activity was found from the coefficient plots of CoMFA, which reflected the experimental Iesults of late of years.
文摘The title complex, [Cu(Hsal)2(py)2], was synthesized by layered solution technique and structurally characterized by single crystal X ray. The copper atom has a square pyramidal geometry and the coordination number is five. The molecular structure is linear one dimensional network. There is a stacking effect between pyridine ligands of neighbouring 1 D chains and the molecular structure is extended into two dimensional stacking network. Two salicylates in the complex have a position of crab pincers like, in which one salicylate is unidentate and another coordinates through the carboxylate group and phenyl group unidentately.
文摘The quaternary complex, [Ce（CH2ClCOO）2（NO3）（phen）（H2O）]2, was synthesized. Interestedly, the title compound is a dimer comparing with the 1D polymer [La（CH2ClCOO）2（NO3）（phen）·（H2O）]n and powder compound [Nd（CH2ClCOO）2（NO3）（phen）]. In the title compound there is a monodentate NO-3, which is a first example in the all synthesized quaternary mixed anion complexes, and the NO-3 extended the complex into a 2D network with water from other molecules by inter-molecular hydrogen bonds. The intermolecular hydrogen bonds lead to the weaker Ce—O（COO）, Ce—O（NO3） and Ce—N bonds comparing with other quaternary mixed anion complexes of cerium. Also the stacking effect, which makes the compound more stable in the situation of weaker Ce—O and Ce—N bonds, was first found in the series compounds.
文摘Several bisazo pigments were synthesized by coupling 2, 7-diaminoflurenone with avariety of 2-hydroxy-3-naphthanilides. The results of elementary analysis and iR indicatedthat the synthesis and purification were successful. The UV spectra of the pigments in DMFrevealed that the visible absorption bands of Azo-3 and Azo-4 were red-shifted obviouslywhich can be attributed to the significant conjugate effect. When the pigments in DMF wereirradiated using an infrared lamp, the properties of photochrism were observed. When theirradiation was carried out by using a high pressure mercury lamp, the absorption of thesolutions was decreased. The xerographic performence of Azo-3 in combination with two chargetransport molecules [ 4-(diethylamino ) benzaldehyde diphenyl-hydrozone (DEH ) and4(dimethylamino) benzaldehyde phenylnaphthylhydrozone (DENH )] was investigated. Wefound Azo-3 has a better photosensitivity by using DENH as charge transport molecule andpoly(methyl methacrylate) (PMMA) as charge blocking layer.
文摘A new binuclear copper ?complex with 1,10-phen and fluoroquinolone ligands, [Cu2(cfc)2(phen)2(pip)](NO3)2(CO)2,was synthesized and its crystal structure was solved.The formula of the complex is C28H24ClCuFN5O7, <IMG SRC="IMAGE/09150030. JPG" HEIGHT=11 WIDTH=12>and the crystallography data are as follows, triclinic, space group , a=0.80372(6)nm, b=0.94712 (7)nm, c=1.67826(13)nm, α=88.5650(10)° , β=80.9920(10)°, γ=70.2780(10)°, V=1.18722(6)nm3, Z=2, D=1.848g·cm-3, F(0 00)=676. R1=0.0627 and wR2=0.1684 (I >2σ(I)). The copper atom is five-coordina te with square-based pyramidal geometry and involves two nitrogen atoms from ph en, two oxygen atoms from cfc and one nitrogen atom from pip anion. The stacking effect between cfc and phen ligands from two neighboring molecules was observed . FT-IR spectrum of the complex was also discussed. Both ligand and complex wer e assayed against gram-positive and gram-negative bacteria by doubling dilutio ns method; the complex shows the same minimal inhibitory concentration (MIC) as the corresponding ligand against S. Aureus, E. Coli and M. Lutens bacteria. The inhibitory effect of the ligand and complex on leukemia HL-60 cell line and liv er cancer BEL-7402 cell line have been measured by using MTT (Methyl-Thiazol- Tetrozolium) and SRB (Sulphurhodamin B) assay methods, respectively. The results indicated that the complex has strong inhibitory effect on HL-60 and BEL-7402 cell line. CCDC: 203964.
文摘A new binuclear copper?complex containing fluoroquinolone ligand, [Cu2（cfc）2（bpy）2（pip）]·6H2O, was synthesized and its crystal structure was solved. The formula of the complex is C25H26ClCuFN4O6, and the crystallography data are as follows, triclinic, space group ,a=6.874（2）?, b=10.761（3）?, c=17.976（5）?, α=80.071（6）°, β=85.253（6）°, γ=79.109（6）°, V=1284.5（6）?3, D=1.542g·cm-3, F（000）=614, and Z=2. R1=0.0776 and wR2=0.2235（I >2σ（I））. The copper atom is five coordinate with square based pyramidal geometry and involves two nitrogen atoms from bpy, two oxygen atoms from cfc and one nitrogen atom from pip anion. The stacking effect between cfc and bpy ligands from two neighboring molecules was observed. Both ligand and complex were assayed against gram positive and gram negative bacteria by doubling dilutions method, the complex shows the same minimal inhibitory concentration （MIC） as the corresponding ligand against S.Aureus and E.Coli bacteria. The inhibitory effect of the ligand and complex on leukemia HL 60 cell line and liver cancer BEL 7402 cell line have been measured by using MTT （Methyl Thiazol Tetrozolium） and SRB （Sulphurhodamin B） assay methods. The resultsindicated that the complex has strong inhibitory effect on HL 60 cell line and on BEL 7402 cell line. CCDC: 191087.
