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
A novel binucleus mixed-ligand[Cd2(phen)4(bmal)2]·3H2O (phen=phenanthroline; bmal=benzylmalonic acid radical) has been synthesized by the reaction of phen and bmal with cadmium(Ⅱ) salt. X-ray crystal structure a...A novel binucleus mixed-ligand[Cd2(phen)4(bmal)2]·3H2O (phen=phenanthroline; bmal=benzylmalonic acid radical) has been synthesized by the reaction of phen and bmal with cadmium(Ⅱ) salt. X-ray crystal structure analysis was carried out to determine the crystal structure of the title complex. The crystal of the title complex belongs to monoclinic system with space group P21/c, a=1.119 1(8) nm, b=2.480 5(17) nm, c=1.063 4(8) nm, β=142.042(12)°, Z=4, V=2.887(3) nm3, Dc=1.613 g·cm-3, R1=0.046 2, wR2=0.115 6, F(000)=1 424. One carboxyl of bmal is coordinated to Cd(1) with monodentate form, the others are coordinated to Cd(2) with bidentate form. The complexes form a 1-D chain structure bridged by hydrogen bonds that formed by uncoordinated water and oxygen atom of carboxyl group in bmal, the 2-D network structure was formed by π-π interaction of neighbouring phen. CCDC: 257080.展开更多
The stability constants of PdAB ternary complexes were determined by potentionmetric pH titration at 25℃,I=0.1mol/l KNO3,whereA=2,2′-bipyridy1-3,3′-dicarboxylicacid,B=Alanine,3,5-Dibr-tyrosine and 3,5-DiI-tyrosine....The stability constants of PdAB ternary complexes were determined by potentionmetric pH titration at 25℃,I=0.1mol/l KNO3,whereA=2,2′-bipyridy1-3,3′-dicarboxylicacid,B=Alanine,3,5-Dibr-tyrosine and 3,5-DiI-tyrosine.The binary complexes stability constants have also been determined at the same conditions.And compared with alanine,tyrosine system,the possible reasons that lead to extra stability of ternary complexes were discussed from the viewpoint of aromatic ring stacking,d-pπbond or hydrogen-bond.展开更多
The two title complexes,[Cd2(phen)2(succ)(H2O)2](NO3-)2 ·3H2O(1)and [Cd2(phen)2(glut)2][Cd2(phen)2(Cl-)2] 2NO3-·14H2O(2)(succ =succinic acid,glut =glutaric acid,phen=1,10-phenanthroline)have been synthesized...The two title complexes,[Cd2(phen)2(succ)(H2O)2](NO3-)2 ·3H2O(1)and [Cd2(phen)2(glut)2][Cd2(phen)2(Cl-)2] 2NO3-·14H2O(2)(succ =succinic acid,glut =glutaric acid,phen=1,10-phenanthroline)have been synthesized at room temperature,and characterized by elemental analysis,IR spectrum and X-ray crystal diffraction.The results show that the complex 1 belongs to monoclinic system with space group P2(1)/c and cell parameter: a=15.373(5),b=13.786(4),c=25.434(7),β=104.582(6)°,V=5217(3)3,Z=4,,Dc=1.624g/cm3,μ(MoKα)=0.895mm-1,F(000)=2576,R1=0.0699,wR2=0.1280.And complex 2 belongs to triclinic system,space group Pī,cell parameter: a=14.131(4),b=14.546(4),c=15.392(5),β=93.731(6),V=2674.93,Z=2,Dc=1.613 g/cm3,μ(MoKα)=0.921 mm-1,F(000)=1316,R1=0.0746,wR2=0.121.Complex 2 has two independent structure and Cd(Ⅱ) is rare seven-coordinated mode.The two complexes formed 2D molecular architectures by hydrogen-bonding and π-π stacking interactions.展开更多
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
文摘A novel binucleus mixed-ligand[Cd2(phen)4(bmal)2]·3H2O (phen=phenanthroline; bmal=benzylmalonic acid radical) has been synthesized by the reaction of phen and bmal with cadmium(Ⅱ) salt. X-ray crystal structure analysis was carried out to determine the crystal structure of the title complex. The crystal of the title complex belongs to monoclinic system with space group P21/c, a=1.119 1(8) nm, b=2.480 5(17) nm, c=1.063 4(8) nm, β=142.042(12)°, Z=4, V=2.887(3) nm3, Dc=1.613 g·cm-3, R1=0.046 2, wR2=0.115 6, F(000)=1 424. One carboxyl of bmal is coordinated to Cd(1) with monodentate form, the others are coordinated to Cd(2) with bidentate form. The complexes form a 1-D chain structure bridged by hydrogen bonds that formed by uncoordinated water and oxygen atom of carboxyl group in bmal, the 2-D network structure was formed by π-π interaction of neighbouring phen. CCDC: 257080.
文摘The stability constants of PdAB ternary complexes were determined by potentionmetric pH titration at 25℃,I=0.1mol/l KNO3,whereA=2,2′-bipyridy1-3,3′-dicarboxylicacid,B=Alanine,3,5-Dibr-tyrosine and 3,5-DiI-tyrosine.The binary complexes stability constants have also been determined at the same conditions.And compared with alanine,tyrosine system,the possible reasons that lead to extra stability of ternary complexes were discussed from the viewpoint of aromatic ring stacking,d-pπbond or hydrogen-bond.
文摘The two title complexes,[Cd2(phen)2(succ)(H2O)2](NO3-)2 ·3H2O(1)and [Cd2(phen)2(glut)2][Cd2(phen)2(Cl-)2] 2NO3-·14H2O(2)(succ =succinic acid,glut =glutaric acid,phen=1,10-phenanthroline)have been synthesized at room temperature,and characterized by elemental analysis,IR spectrum and X-ray crystal diffraction.The results show that the complex 1 belongs to monoclinic system with space group P2(1)/c and cell parameter: a=15.373(5),b=13.786(4),c=25.434(7),β=104.582(6)°,V=5217(3)3,Z=4,,Dc=1.624g/cm3,μ(MoKα)=0.895mm-1,F(000)=2576,R1=0.0699,wR2=0.1280.And complex 2 belongs to triclinic system,space group Pī,cell parameter: a=14.131(4),b=14.546(4),c=15.392(5),β=93.731(6),V=2674.93,Z=2,Dc=1.613 g/cm3,μ(MoKα)=0.921 mm-1,F(000)=1316,R1=0.0746,wR2=0.121.Complex 2 has two independent structure and Cd(Ⅱ) is rare seven-coordinated mode.The two complexes formed 2D molecular architectures by hydrogen-bonding and π-π stacking interactions.
