In the presence of Triton X100,the color reaction of Mercury(Ⅱ)with 2hydroxy5nitrophenyldiazoaminoazobenene(HNPDAAB)was studied.Mercury(Ⅱ)reacts with HNPDAAB and forms a 1∶1 red complex at pH=95-110 buffer solution...In the presence of Triton X100,the color reaction of Mercury(Ⅱ)with 2hydroxy5nitrophenyldiazoaminoazobenene(HNPDAAB)was studied.Mercury(Ⅱ)reacts with HNPDAAB and forms a 1∶1 red complex at pH=95-110 buffer solution of Na2B4O7NaOH.The molar absorptivity is 256×105L·mol-1·cm-1.Beer’s law is obeyed in the concentration range of 0～12μg/25mL for Mercury(Ⅱ).The results are in agreement with those determined by the conventional method.This new method was used to determine trace mercury in wastewater.展开更多
4′-acetylbenzo-15-crown-5thiosemicarbazone was synthesized with high yield (94%)via the reaction of 4′-acetylbenzo-15-crown-5 and thiosemicarbazide under the microwave irradiation and hydrochloric acid as the cataly...4′-acetylbenzo-15-crown-5thiosemicarbazone was synthesized with high yield (94%)via the reaction of 4′-acetylbenzo-15-crown-5 and thiosemicarbazide under the microwave irradiation and hydrochloric acid as the catalyst.Its structure was determined by single-crystal X-ray diffraction.The crystal belongs to triclinic crystal system,P-1 space group,a=9.5470(19)?,b=13.637(3)?,c=16.029(3)?,α=75.33(3)°,β=83.62(3)°,γ=70.99(3)°,V=1097.8(7)s assembled into supramolecule structure by intermolecular hydrogen bonds.展开更多
文摘In the presence of Triton X100,the color reaction of Mercury(Ⅱ)with 2hydroxy5nitrophenyldiazoaminoazobenene(HNPDAAB)was studied.Mercury(Ⅱ)reacts with HNPDAAB and forms a 1∶1 red complex at pH=95-110 buffer solution of Na2B4O7NaOH.The molar absorptivity is 256×105L·mol-1·cm-1.Beer’s law is obeyed in the concentration range of 0～12μg/25mL for Mercury(Ⅱ).The results are in agreement with those determined by the conventional method.This new method was used to determine trace mercury in wastewater.
文摘4′-acetylbenzo-15-crown-5thiosemicarbazone was synthesized with high yield (94%)via the reaction of 4′-acetylbenzo-15-crown-5 and thiosemicarbazide under the microwave irradiation and hydrochloric acid as the catalyst.Its structure was determined by single-crystal X-ray diffraction.The crystal belongs to triclinic crystal system,P-1 space group,a=9.5470(19)?,b=13.637(3)?,c=16.029(3)?,α=75.33(3)°,β=83.62(3)°,γ=70.99(3)°,V=1097.8(7)s assembled into supramolecule structure by intermolecular hydrogen bonds.
