Copper(Ⅱ)-ferron(7-iodo-8-hydroxyquinoline-5-sulfonate) one-dimensional coordination polymer Na 2 n [Cu(Ferron) 2] n ·6 n H 2O was synthesized and investigated by X-ray diffraction method. The polymer exhibits a...Copper(Ⅱ)-ferron(7-iodo-8-hydroxyquinoline-5-sulfonate) one-dimensional coordination polymer Na 2 n [Cu(Ferron) 2] n ·6 n H 2O was synthesized and investigated by X-ray diffraction method. The polymer exhibits a linear structure by the bis-iodine-axial coordination to the octahedral Cu(Ⅱ) center,which is stabilized by the iodine-aromatic ring(edge and face) and iodine-iodine interactions between the polymer lines,forming a special layer structure. The complex belongs to a triclinic system,space group P 1, a =0.648 4(19) nm, b =0.654 5(19) nm, c =1.911(6) nm, α=85.42(5)°,β=85.78(5)°,γ=72.99(4)°,V =0.772(4) nm 3 and Z=1 .展开更多
A new method for determination of Nickel using 2-(8 -hydroxy quinolino-5-sulfoacid-7-azo)-1,8-dihydroxy-3,6-naphthalene disulfoacid is set u p. In pH9.37 B-R media ,Nickel and 8Q5SAC react to form a 1∶3 complex, and ...A new method for determination of Nickel using 2-(8 -hydroxy quinolino-5-sulfoacid-7-azo)-1,8-dihydroxy-3,6-naphthalene disulfoacid is set u p. In pH9.37 B-R media ,Nickel and 8Q5SAC react to form a 1∶3 complex, and surface active agen t CTMAB has effect of increasing sensitivity. The maximum absorbance of the reagent is 692 nm, th e complex is 542 nm, and the apparent molar absorptivity is 6 0×10 4L·mol -1 ·cm -1 , by using dual wavelength increasing sensitivity method. Beer’s law is obeyed by in 0～20 μg/25 mL for Nickel. The sensitivity increased by 2 5 times in contrast with using single w alvelength. The method is applied to the determination of Nickel in actual sampl es with satisfactory results.展开更多
文摘Copper(Ⅱ)-ferron(7-iodo-8-hydroxyquinoline-5-sulfonate) one-dimensional coordination polymer Na 2 n [Cu(Ferron) 2] n ·6 n H 2O was synthesized and investigated by X-ray diffraction method. The polymer exhibits a linear structure by the bis-iodine-axial coordination to the octahedral Cu(Ⅱ) center,which is stabilized by the iodine-aromatic ring(edge and face) and iodine-iodine interactions between the polymer lines,forming a special layer structure. The complex belongs to a triclinic system,space group P 1, a =0.648 4(19) nm, b =0.654 5(19) nm, c =1.911(6) nm, α=85.42(5)°,β=85.78(5)°,γ=72.99(4)°,V =0.772(4) nm 3 and Z=1 .
文摘A new method for determination of Nickel using 2-(8 -hydroxy quinolino-5-sulfoacid-7-azo)-1,8-dihydroxy-3,6-naphthalene disulfoacid is set u p. In pH9.37 B-R media ,Nickel and 8Q5SAC react to form a 1∶3 complex, and surface active agen t CTMAB has effect of increasing sensitivity. The maximum absorbance of the reagent is 692 nm, th e complex is 542 nm, and the apparent molar absorptivity is 6 0×10 4L·mol -1 ·cm -1 , by using dual wavelength increasing sensitivity method. Beer’s law is obeyed by in 0～20 μg/25 mL for Nickel. The sensitivity increased by 2 5 times in contrast with using single w alvelength. The method is applied to the determination of Nickel in actual sampl es with satisfactory results.
