Using a reversed-phase microemulsion polymerization method, polyoxometalates(POMs) CoW 11Ti loaded starch nanoparticles were prepared and structurally characterized by elemental analyses, IR, UV-Vis and ESR spectrosco...Using a reversed-phase microemulsion polymerization method, polyoxometalates(POMs) CoW 11Ti loaded starch nanoparticles were prepared and structurally characterized by elemental analyses, IR, UV-Vis and ESR spectroscopy. The particle size of CoW 11Ti/starch was estimated by transmission electron microscope(TEM) and the size ranges by a 1000HSA MALVIRN Zetasizer instrument. The result shows that the polyoxometalate retained the parent structure after encapsulated by starch microspheres, which are able to enhance the stability and antitumoral activity of POMs and decrease the toxicity of POMs as well.展开更多
Oxidation process of Co(C 6 H 11 O) 2 PS 2 2 and substitute-reduction reaction of Co C 6 H 11 O) 2 PS 2 3 with pyridine have been studied by spectrophotome tric methods,respectively.The equ ilibrium constant was found...Oxidation process of Co(C 6 H 11 O) 2 PS 2 2 and substitute-reduction reaction of Co C 6 H 11 O) 2 PS 2 3 with pyridine have been studied by spectrophotome tric methods,respectively.The equ ilibrium constant was found to be K=0.63±0.02(mol·dm -3 ) -3 .The crystal structure of Co 6 H 11 O) 2 PS 2 2·2Py has been determined by X-ray diff-raction method.The crystal belongs to triclinic system,space groupP1,with cell parameters:a=6.944(2)?,b=9.277(3)?,c=15.981(6)?,α=91.79(3)°,β=99.55(3)°,γ=94.44(3)°,V=1011.2(6)? 3 ,Z =2,M r =803.94,D c =1.320Mg ·m -3 ,F(000)=425,μ=0.747mm -1 ,final R=0.0700and w R=0.1988for 3626re-flections with I≥2σ(I).The cobalt atom in the title complex has a octahedral geometry with four Co-S bonds and two Co-N bonds.The central atom P is t etrahedrally surrounded by two sulp hur atoms and two oxygen atoms in the dicyclohexyldithiophosphate liga nd.The six carbon atoms of cyclohexyl take the chair conformation.展开更多
基金Supported by the National Natural Science Foundation of China(No.21477050,No.21522603,No.21706101)the Henry Fok Education Foundation(No.141068)+2 种基金the Six Talents Peak Project in Jiangsu Province(No.XCL-025)the Chinese-German Cooperation Research Project(No.GZ1091)the China Postdoctoral Foundation(No.2017M611731)~~
文摘Using a reversed-phase microemulsion polymerization method, polyoxometalates(POMs) CoW 11Ti loaded starch nanoparticles were prepared and structurally characterized by elemental analyses, IR, UV-Vis and ESR spectroscopy. The particle size of CoW 11Ti/starch was estimated by transmission electron microscope(TEM) and the size ranges by a 1000HSA MALVIRN Zetasizer instrument. The result shows that the polyoxometalate retained the parent structure after encapsulated by starch microspheres, which are able to enhance the stability and antitumoral activity of POMs and decrease the toxicity of POMs as well.
文摘Oxidation process of Co(C 6 H 11 O) 2 PS 2 2 and substitute-reduction reaction of Co C 6 H 11 O) 2 PS 2 3 with pyridine have been studied by spectrophotome tric methods,respectively.The equ ilibrium constant was found to be K=0.63±0.02(mol·dm -3 ) -3 .The crystal structure of Co 6 H 11 O) 2 PS 2 2·2Py has been determined by X-ray diff-raction method.The crystal belongs to triclinic system,space groupP1,with cell parameters:a=6.944(2)?,b=9.277(3)?,c=15.981(6)?,α=91.79(3)°,β=99.55(3)°,γ=94.44(3)°,V=1011.2(6)? 3 ,Z =2,M r =803.94,D c =1.320Mg ·m -3 ,F(000)=425,μ=0.747mm -1 ,final R=0.0700and w R=0.1988for 3626re-flections with I≥2σ(I).The cobalt atom in the title complex has a octahedral geometry with four Co-S bonds and two Co-N bonds.The central atom P is t etrahedrally surrounded by two sulp hur atoms and two oxygen atoms in the dicyclohexyldithiophosphate liga nd.The six carbon atoms of cyclohexyl take the chair conformation.
