The complex of Sm2(o-NBA)6(PHEN)2 (o-NBA, o-Nitrobenzoate; PHEN, 1,10-phenanthroline) was prepar-ed and characterized by elemental analysis, IR and UV spectraoscopy. The thermal decomposition mechanism of Sm2(o-NBA)6(...The complex of Sm2(o-NBA)6(PHEN)2 (o-NBA, o-Nitrobenzoate; PHEN, 1,10-phenanthroline) was prepar-ed and characterized by elemental analysis, IR and UV spectraoscopy. The thermal decomposition mechanism of Sm2(o-NBA)6(PHEN)2 was studied under a static air atmosphere by TG-DTG. The thermal decomposition kinetics of the complex for the first stage was studied under non-isothermal condition. The most probable mechanism functions of the thermal decomposition reaction for the first stage are: G(α)=[-ln(1-α)]1/2, f(α)=2(1-α)[-ln(1-α)]1/2. The activation energy E for the first stage is 259.50 kJ·mol-1, the pre-exponential factor A is 36.19×1018 min-1. The lifetime equation at weight-loss of 10% was deduced as lnτ=-36.70+27 572.12/T by isothermal thermogravimetric analysis.展开更多
The fluorescence of two Tb 3+ aminopolyphosphonic (L 1) acid Phen triple complex (L 1=ethylenediaminetetrakis (methylphosphonic) (EDTP) and ethylaminobis (methylphosphonic) (EDP)) in solution was reported.It was found...The fluorescence of two Tb 3+ aminopolyphosphonic (L 1) acid Phen triple complex (L 1=ethylenediaminetetrakis (methylphosphonic) (EDTP) and ethylaminobis (methylphosphonic) (EDP)) in solution was reported.It was found that fluorescence of Tb L 1 Phen solution apparently increased as compared with that of Tb Phen complex,indicating that Tb L 1 Phen triple complex was formed.The fluorescence was strongest at pH 7.0.Fluorescence for both L 1=EDTP and EDP increase with addition of L 1 and Phen,but excess of ligands did not affect the fluorescence,thus indicating there is cooperation effect between L 1 and Phen.The change of the fluorescence among different complex was also explained according to the enhancing or quenching effect of ligands.展开更多
The complex with the molecular formula of Zn(Phen)(NAA)2 was synthesized by the reaction of ZnSO4, naphthylacetic acid and phenanthroline in ethanol-water solution at about pH≈7. It was characterized by elemental ana...The complex with the molecular formula of Zn(Phen)(NAA)2 was synthesized by the reaction of ZnSO4, naphthylacetic acid and phenanthroline in ethanol-water solution at about pH≈7. It was characterized by elemental analysis, IR spectrum and X-ray single crystal diffraction. The antibacterial activity on E. Coli, S. Aureus and B. Subtilis were also been studied. The crystal of the complex belongs to triclinic system with space group P1, a=1.300 2 nm, b=1.306 4 nm, c=1.714 4 nm, α=89.41°, β=77.06°, γ=86.70°, V=2.833 5(2) nm3, Z=4, Dc =1.444 g·cm-3, Mr=615.96, μ(Mo Kα)=0.912 mm-1, the final R=0.039 8 and wR=0.103 4 [I>2σ(I)], F(000)=1 272. An asymmetry unit is composed of two independent molecules of Zn(Phen)(NAA)2 with different bond length and bond angles. There exist two kinds of face to face π-π stacking interactions . The complex has a good effect against E. Coli. CCDC: 619222.展开更多
The complex[Cu(L-met)(phen)(H 2 O)]NO 3 ·H 2 O has been synthesized and investigated by elemental analysis,molar conductivity,spec troscopic and X-ray diffraction methods,where phen =1,10-phenanthroline and L-met...The complex[Cu(L-met)(phen)(H 2 O)]NO 3 ·H 2 O has been synthesized and investigated by elemental analysis,molar conductivity,spec troscopic and X-ray diffraction methods,where phen =1,10-phenanthroline and L-met =L-methioninate group.The complex crystallized in the monoclinic space g roup P2 1 with a=12.053(2)*!,b=6.886(1)*!,c=13.385(3)*!,β=113.59(3)°,V=1018.1(3)*! 3 ,Z =2,D c =1.598g·cm -3 ,μ=1.223mm -1 ,F(000)=506,R 1 =0.0306,and w R 2 =0.0742.The copper*"atom is ligated in a distorted square-pyramidal geometry by two ni trogen atoms of one phen and the amino nitrogen atom ,one carboxylate oxygen atom of L-met in the base plane,and an aqua at t he apical position.A one-dimension al chain configuration formed by the hydrogen-bonding and weak Cu-O(the uncoordinated carboxyl oxygen a tom)coordination interactions be-tween neighboring[Cu(L-met)(phen)(H 2 O)] + cations.CCDC:183368.展开更多
文摘The complex of Sm2(o-NBA)6(PHEN)2 (o-NBA, o-Nitrobenzoate; PHEN, 1,10-phenanthroline) was prepar-ed and characterized by elemental analysis, IR and UV spectraoscopy. The thermal decomposition mechanism of Sm2(o-NBA)6(PHEN)2 was studied under a static air atmosphere by TG-DTG. The thermal decomposition kinetics of the complex for the first stage was studied under non-isothermal condition. The most probable mechanism functions of the thermal decomposition reaction for the first stage are: G(α)=[-ln(1-α)]1/2, f(α)=2(1-α)[-ln(1-α)]1/2. The activation energy E for the first stage is 259.50 kJ·mol-1, the pre-exponential factor A is 36.19×1018 min-1. The lifetime equation at weight-loss of 10% was deduced as lnτ=-36.70+27 572.12/T by isothermal thermogravimetric analysis.
文摘The fluorescence of two Tb 3+ aminopolyphosphonic (L 1) acid Phen triple complex (L 1=ethylenediaminetetrakis (methylphosphonic) (EDTP) and ethylaminobis (methylphosphonic) (EDP)) in solution was reported.It was found that fluorescence of Tb L 1 Phen solution apparently increased as compared with that of Tb Phen complex,indicating that Tb L 1 Phen triple complex was formed.The fluorescence was strongest at pH 7.0.Fluorescence for both L 1=EDTP and EDP increase with addition of L 1 and Phen,but excess of ligands did not affect the fluorescence,thus indicating there is cooperation effect between L 1 and Phen.The change of the fluorescence among different complex was also explained according to the enhancing or quenching effect of ligands.
文摘The complex with the molecular formula of Zn(Phen)(NAA)2 was synthesized by the reaction of ZnSO4, naphthylacetic acid and phenanthroline in ethanol-water solution at about pH≈7. It was characterized by elemental analysis, IR spectrum and X-ray single crystal diffraction. The antibacterial activity on E. Coli, S. Aureus and B. Subtilis were also been studied. The crystal of the complex belongs to triclinic system with space group P1, a=1.300 2 nm, b=1.306 4 nm, c=1.714 4 nm, α=89.41°, β=77.06°, γ=86.70°, V=2.833 5(2) nm3, Z=4, Dc =1.444 g·cm-3, Mr=615.96, μ(Mo Kα)=0.912 mm-1, the final R=0.039 8 and wR=0.103 4 [I>2σ(I)], F(000)=1 272. An asymmetry unit is composed of two independent molecules of Zn(Phen)(NAA)2 with different bond length and bond angles. There exist two kinds of face to face π-π stacking interactions . The complex has a good effect against E. Coli. CCDC: 619222.
文摘The complex[Cu(L-met)(phen)(H 2 O)]NO 3 ·H 2 O has been synthesized and investigated by elemental analysis,molar conductivity,spec troscopic and X-ray diffraction methods,where phen =1,10-phenanthroline and L-met =L-methioninate group.The complex crystallized in the monoclinic space g roup P2 1 with a=12.053(2)*!,b=6.886(1)*!,c=13.385(3)*!,β=113.59(3)°,V=1018.1(3)*! 3 ,Z =2,D c =1.598g·cm -3 ,μ=1.223mm -1 ,F(000)=506,R 1 =0.0306,and w R 2 =0.0742.The copper*"atom is ligated in a distorted square-pyramidal geometry by two ni trogen atoms of one phen and the amino nitrogen atom ,one carboxylate oxygen atom of L-met in the base plane,and an aqua at t he apical position.A one-dimension al chain configuration formed by the hydrogen-bonding and weak Cu-O(the uncoordinated carboxyl oxygen a tom)coordination interactions be-tween neighboring[Cu(L-met)(phen)(H 2 O)] + cations.CCDC:183368.
