In this paper, the title complex K[In Ⅲ(Hdtpa)]·3.5H 2O(dtpa=diethylenetriaminepentaacetic acid) was synthesized and its crystal structure was determined by single crystal X ray structure analysis. The crystal b...In this paper, the title complex K[In Ⅲ(Hdtpa)]·3.5H 2O(dtpa=diethylenetriaminepentaacetic acid) was synthesized and its crystal structure was determined by single crystal X ray structure analysis. The crystal belongs to monoclinic system, P 2 1/ c (No.14) space group with a =0.978 1(2) nm, b =0.733 8(1) nm , c =2.962 9(6) nm, β =91.81(3)°, V =0.212 6(1) nm 3, Z =4, M =606.31, D x=1.895 g·cm -3 , μ =1.382 1 mm -1 , F (000)=1 228, R =0.035 and R w=0.041 for 2 802 unique reflections. The complex anion [In Ⅲ(Hdtpa)] - has a pseudo monocapped trigonal prismatic seven coordination structure in which the seven coordinate atoms, three N and four O atoms, are all from a ligand dtpa. In addition, it can be seen that the complex anion [In Ⅲ(Hdtpa)] - can furnish a free carboxyl group(—CH 2COOH) being used for molecular embellishment to form the target diagnosis and treat drug of anticancer. [WT5HZ]展开更多
Preparation of In2O3 nano-scale powders by ultrasonic and homogeneous precipitation, using metal In and urea as raw materials, was reported for the first time, while the effects of reaction temperature, the ratio of t...Preparation of In2O3 nano-scale powders by ultrasonic and homogeneous precipitation, using metal In and urea as raw materials, was reported for the first time, while the effects of reaction temperature, the ratio of the materials and the pH etc. on the preparation was dicussed. This method can be operated and industrialized easily with very low cost. The structural properties of precursor and In2O3 were characterized by TG-DTA, XRD, ESCA and TEM. The results show that In2O3 produced are very pure, monophase and spherical nano-scale powders with average size of 25 nm.展开更多
文摘In this paper, the title complex K[In Ⅲ(Hdtpa)]·3.5H 2O(dtpa=diethylenetriaminepentaacetic acid) was synthesized and its crystal structure was determined by single crystal X ray structure analysis. The crystal belongs to monoclinic system, P 2 1/ c (No.14) space group with a =0.978 1(2) nm, b =0.733 8(1) nm , c =2.962 9(6) nm, β =91.81(3)°, V =0.212 6(1) nm 3, Z =4, M =606.31, D x=1.895 g·cm -3 , μ =1.382 1 mm -1 , F (000)=1 228, R =0.035 and R w=0.041 for 2 802 unique reflections. The complex anion [In Ⅲ(Hdtpa)] - has a pseudo monocapped trigonal prismatic seven coordination structure in which the seven coordinate atoms, three N and four O atoms, are all from a ligand dtpa. In addition, it can be seen that the complex anion [In Ⅲ(Hdtpa)] - can furnish a free carboxyl group(—CH 2COOH) being used for molecular embellishment to form the target diagnosis and treat drug of anticancer. [WT5HZ]
文摘Preparation of In2O3 nano-scale powders by ultrasonic and homogeneous precipitation, using metal In and urea as raw materials, was reported for the first time, while the effects of reaction temperature, the ratio of the materials and the pH etc. on the preparation was dicussed. This method can be operated and industrialized easily with very low cost. The structural properties of precursor and In2O3 were characterized by TG-DTA, XRD, ESCA and TEM. The results show that In2O3 produced are very pure, monophase and spherical nano-scale powders with average size of 25 nm.