This paper deals with the structure of the Y^iii complex withaminopolycarboxylic acids, synthesis and struc- tural determinationof the complex (NH_4)[Y^III(edta)(H_2O)_3] ·3 H_2O (edta =ethylenediaminetetraacetic...This paper deals with the structure of the Y^iii complex withaminopolycarboxylic acids, synthesis and struc- tural determinationof the complex (NH_4)[Y^III(edta)(H_2O)_3] ·3 H_2O (edta =ethylenediaminetetraacetic acid). The crystal and molecularstructures of the (NH_4)[Y^III(edta)(H_2O)_3] ·3 H_2O complex havebeen determined by single-crystal X-ray structure analysis. Thecrystal of the complex (NH_4)[Y^III(edta)(H_2O)_3] ·3 H_2O belongsto orthorhombic crystal system and fdd2 space group.展开更多
：In this paper we describe the molecular and crystal structures of the K3[Y(NTA)2(H2O)]· 6H2O(H3NTA=nitrilotriacetic acid). The crystal data are as follows: monoclinic system, C2/c space group, a=1.5268(3)nm,b=1...：In this paper we describe the molecular and crystal structures of the K3[Y(NTA)2(H2O)]· 6H2O(H3NTA=nitrilotriacetic acid). The crystal data are as follows: monoclinic system, C2/c space group, a=1.5268(3)nm,b=1.2833(3)nm,c=2.6079(5)nm,β =96.03(3)° ,V=5.0815(18)nm3,Z=8,M=708.68,Dc=1.852gcm-3,μ =2.875mm-1,F(000)=2880.The final R1 and wR2 are 0.0636 and 0.1523 for 4264 [I >2.0σ (I)] unique reflections and 0.1178 and 0.1651 for all 4364 reflections,respectively.In the title complex, the anion [Y(NTA)2(H2O)]3- has a nine-coordination structure with distorted monocapped square antiprism. Each group acts as a tetradentate ligand with three O atoms and one N atom and a H2O molecule caps a quadrilateral face as a ligand.It can be known that the Y(III) ion can form a high-coordinate compound with aminopolycarboxylic acid ligands because it has a larger ionic radius (0.104nm).展开更多
In this paper, the molecular and crystal structures of the K3·5H2O(TTHA=triethylenetetraminehexaacetic acid)are given. The crystal data are as follows: monoclinic system, P21/c space group, a=1.0290(9)nm, b=1.246...In this paper, the molecular and crystal structures of the K3·5H2O(TTHA=triethylenetetraminehexaacetic acid)are given. The crystal data are as follows: monoclinic system, P21/c space group, a=1.0290(9)nm, b=1.2466(11)nm, c=2.279(2)nm, β=91.322(16)°, V=2.923(5)nm3, Z=4, M=860.67, Dc=1.956gcm-3, μ=3.217mm-1, F(000)=1720. The final R1 and wR2 are 0.0395 and 0.0796 for 5145 [I >2.0σ(I)] unique reflections and 0.0546 and 0.0833 for all 11567 reflections, respectively. In the title complex, the anion 3- has a nine coordination structure with distorted tricapped trigonal prism. A TTHA having four N atoms of amido groups and six O atoms of carboxylic groups acts as a enneadentate ligand with four N atoms and five O atoms. In addition, there is a free non coordinated carboxyl group ( CH2COO-) in the complex anion 3-. The free carboxyl group could be embellished by some biological molecules which have selectivity and affinity to tumor cell. Then the 166HoⅢ TTHA complex may become radioactive anti tumor drug having targeting function.展开更多
基金financially supported by the National Natural Science Foundation of China (No.29771016)
文摘This paper deals with the structure of the Y^iii complex withaminopolycarboxylic acids, synthesis and struc- tural determinationof the complex (NH_4)[Y^III(edta)(H_2O)_3] ·3 H_2O (edta =ethylenediaminetetraacetic acid). The crystal and molecularstructures of the (NH_4)[Y^III(edta)(H_2O)_3] ·3 H_2O complex havebeen determined by single-crystal X-ray structure analysis. Thecrystal of the complex (NH_4)[Y^III(edta)(H_2O)_3] ·3 H_2O belongsto orthorhombic crystal system and fdd2 space group.
文摘：In this paper we describe the molecular and crystal structures of the K3[Y(NTA)2(H2O)]· 6H2O(H3NTA=nitrilotriacetic acid). The crystal data are as follows: monoclinic system, C2/c space group, a=1.5268(3)nm,b=1.2833(3)nm,c=2.6079(5)nm,β =96.03(3)° ,V=5.0815(18)nm3,Z=8,M=708.68,Dc=1.852gcm-3,μ =2.875mm-1,F(000)=2880.The final R1 and wR2 are 0.0636 and 0.1523 for 4264 [I >2.0σ (I)] unique reflections and 0.1178 and 0.1651 for all 4364 reflections,respectively.In the title complex, the anion [Y(NTA)2(H2O)]3- has a nine-coordination structure with distorted monocapped square antiprism. Each group acts as a tetradentate ligand with three O atoms and one N atom and a H2O molecule caps a quadrilateral face as a ligand.It can be known that the Y(III) ion can form a high-coordinate compound with aminopolycarboxylic acid ligands because it has a larger ionic radius (0.104nm).
文摘In this paper, the molecular and crystal structures of the K3·5H2O(TTHA=triethylenetetraminehexaacetic acid)are given. The crystal data are as follows: monoclinic system, P21/c space group, a=1.0290(9)nm, b=1.2466(11)nm, c=2.279(2)nm, β=91.322(16)°, V=2.923(5)nm3, Z=4, M=860.67, Dc=1.956gcm-3, μ=3.217mm-1, F(000)=1720. The final R1 and wR2 are 0.0395 and 0.0796 for 5145 [I >2.0σ(I)] unique reflections and 0.0546 and 0.0833 for all 11567 reflections, respectively. In the title complex, the anion 3- has a nine coordination structure with distorted tricapped trigonal prism. A TTHA having four N atoms of amido groups and six O atoms of carboxylic groups acts as a enneadentate ligand with four N atoms and five O atoms. In addition, there is a free non coordinated carboxyl group ( CH2COO-) in the complex anion 3-. The free carboxyl group could be embellished by some biological molecules which have selectivity and affinity to tumor cell. Then the 166HoⅢ TTHA complex may become radioactive anti tumor drug having targeting function.
