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
A new bimetallic Cu?complex, [(phen)Cu(μ bdmp)Cu(phen)](ClO4)4·2H2O, where phen and bdmp denote 1,10 phenanthroline and 1,1′ bis(nitrilomethylidyne 4,5 diazafluoren) 4,4′ (μ methylene)bisphenyl respectively w...A new bimetallic Cu?complex, [(phen)Cu(μ bdmp)Cu(phen)](ClO4)4·2H2O, where phen and bdmp denote 1,10 phenanthroline and 1,1′ bis(nitrilomethylidyne 4,5 diazafluoren) 4,4′ (μ methylene)bisphenyl respectively was synthesized and its DNA binding behavior was studied by photophysical methods. It has been found that calf thymus DNA could result in significant decrease both in electronic absorption and fluorescent emission of the complex. The fluorescence quenching by ferrocyanide could be reduced to some extent for the complexin presence of DNA. These facts suggest that this dicopper?complex binds to double helix DNA by partial intercalation.展开更多
The complex,[Cu2(L-ala)2(phen)2]n·2nClO4·2nH2O(L-ala=L-alaninate,phen=1,10-phenanthroline)has been synthesized and investigated by elemental analysis,IR spectroscopy,and X-ray diffraction methods.The complex...The complex,[Cu2(L-ala)2(phen)2]n·2nClO4·2nH2O(L-ala=L-alaninate,phen=1,10-phenanthroline)has been synthesized and investigated by elemental analysis,IR spectroscopy,and X-ray diffraction methods.The complex crystallizes in the monoclinic space group P21 with a=1.161 1(4)nm,b=0.717 2(2)nm,c=2.074 1(7)nm,β=101.028(6)°,V=1.695 4(9)nm3,Dc=1.760 g·cm-3,Z=4,μ=1.493 mm-1,F(000)=916,R=0.052 2,wR=0.127 9 for 7 131 unique reflections.The cations of [Cu2(L-ala)2(phen)2]n2n+ have an one-dimensional polymeric structure,due to the bridging of two Cu(phen)2+ units by a carboxylate group of L-alaninate,and each Cu(Ⅱ)ion is in a slightly distorted square-pyramidal coordination geometry,with the phen(N,N’)and the L-ala(N,O)acting as bidentate ligands in the equatorial plane and another carboxylate oxygen atom from a symmetry-related neighboring L-alaninate ion in the apical position.CCDC:277541.展开更多
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.
文摘A new bimetallic Cu?complex, [(phen)Cu(μ bdmp)Cu(phen)](ClO4)4·2H2O, where phen and bdmp denote 1,10 phenanthroline and 1,1′ bis(nitrilomethylidyne 4,5 diazafluoren) 4,4′ (μ methylene)bisphenyl respectively was synthesized and its DNA binding behavior was studied by photophysical methods. It has been found that calf thymus DNA could result in significant decrease both in electronic absorption and fluorescent emission of the complex. The fluorescence quenching by ferrocyanide could be reduced to some extent for the complexin presence of DNA. These facts suggest that this dicopper?complex binds to double helix DNA by partial intercalation.
文摘The complex,[Cu2(L-ala)2(phen)2]n·2nClO4·2nH2O(L-ala=L-alaninate,phen=1,10-phenanthroline)has been synthesized and investigated by elemental analysis,IR spectroscopy,and X-ray diffraction methods.The complex crystallizes in the monoclinic space group P21 with a=1.161 1(4)nm,b=0.717 2(2)nm,c=2.074 1(7)nm,β=101.028(6)°,V=1.695 4(9)nm3,Dc=1.760 g·cm-3,Z=4,μ=1.493 mm-1,F(000)=916,R=0.052 2,wR=0.127 9 for 7 131 unique reflections.The cations of [Cu2(L-ala)2(phen)2]n2n+ have an one-dimensional polymeric structure,due to the bridging of two Cu(phen)2+ units by a carboxylate group of L-alaninate,and each Cu(Ⅱ)ion is in a slightly distorted square-pyramidal coordination geometry,with the phen(N,N’)and the L-ala(N,O)acting as bidentate ligands in the equatorial plane and another carboxylate oxygen atom from a symmetry-related neighboring L-alaninate ion in the apical position.CCDC:277541.
