The synthesis of a new reagent 1-azobenzene-3-(5-nitro-2-pyridyl)-triazene(ABNPDT) and its colour reaction with cadimum were reported. At pH=10.40, in the presence of Triton X-100, ABNPDT react with cadimum to form a ...The synthesis of a new reagent 1-azobenzene-3-(5-nitro-2-pyridyl)-triazene(ABNPDT) and its colour reaction with cadimum were reported. At pH=10.40, in the presence of Triton X-100, ABNPDT react with cadimum to form a red Complex. The maximum absorption of reagent and complex are at 430nm and 520NM respectively. The molar absorpitivity is 2.0710 5L·mol -1 ·cm -1 . Berr’s law can be applied in the rang of 0～12μg/25ml. This method was used to determine tarce cadmium in water with satisfactory results.展开更多
The crystal of zinc complex with salicylaldehyde salicylhydrazone(SHSH ) was obtained in DMF and pyridine. It has been characterized by IR, UV, element analysis and X-ray diffraction analysis. The crystallographic dat...The crystal of zinc complex with salicylaldehyde salicylhydrazone(SHSH ) was obtained in DMF and pyridine. It has been characterized by IR, UV, element analysis and X-ray diffraction analysis. The crystallographic data were as foll ows: monoclinic system, space group Pn, a=1.094 6 nm, b=0.884 0 nm, c=1.161 0 nm , 穋m-3, ≥2 The X-ray crystal structure analysis revealed that the center zinc(Ⅱ) is bonded to two oxygen atoms and one nitrogen atoms from a tridentate ligand(SHSH) and two nitrogen atoms from two solvent pyridine molecules to form a five-coord inate distorted trigonal bipyramid. The full-optimized molecular geometries of t itle complex was calculated at B3LYP/6-31G and HF/6-31G levels with Guassian 98W program. CCDC: 252832.展开更多
文摘The synthesis of a new reagent 1-azobenzene-3-(5-nitro-2-pyridyl)-triazene(ABNPDT) and its colour reaction with cadimum were reported. At pH=10.40, in the presence of Triton X-100, ABNPDT react with cadimum to form a red Complex. The maximum absorption of reagent and complex are at 430nm and 520NM respectively. The molar absorpitivity is 2.0710 5L·mol -1 ·cm -1 . Berr’s law can be applied in the rang of 0～12μg/25ml. This method was used to determine tarce cadmium in water with satisfactory results.
文摘The crystal of zinc complex with salicylaldehyde salicylhydrazone(SHSH ) was obtained in DMF and pyridine. It has been characterized by IR, UV, element analysis and X-ray diffraction analysis. The crystallographic data were as foll ows: monoclinic system, space group Pn, a=1.094 6 nm, b=0.884 0 nm, c=1.161 0 nm , 穋m-3, ≥2 The X-ray crystal structure analysis revealed that the center zinc(Ⅱ) is bonded to two oxygen atoms and one nitrogen atoms from a tridentate ligand(SHSH) and two nitrogen atoms from two solvent pyridine molecules to form a five-coord inate distorted trigonal bipyramid. The full-optimized molecular geometries of t itle complex was calculated at B3LYP/6-31G and HF/6-31G levels with Guassian 98W program. CCDC: 252832.
