双-(3,5-二氯-2-羟基苯基)甲烷与氯乙酸甲酯反应产物2经L iA lH4还原,得到新的双羟基化合物双-(3,5-二氯-2-羟乙氧基苯基)甲烷3,同时还分离得单羟乙基化产物4.2、3及4的结构经NMR、IR、MS及元素分析确证,并且对反应物2及甲烷3的收率偏...双-(3,5-二氯-2-羟基苯基)甲烷与氯乙酸甲酯反应产物2经L iA lH4还原,得到新的双羟基化合物双-(3,5-二氯-2-羟乙氧基苯基)甲烷3,同时还分离得单羟乙基化产物4.2、3及4的结构经NMR、IR、MS及元素分析确证,并且对反应物2及甲烷3的收率偏低的原因进行了初步分析.展开更多
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
合成了N-［(2-羟基-5-甲基苯)（苯基）］亚甲基邻苯二胺，晶体属单斜晶系，空 间群P21/c. 晶胞参数 a = 1.034 0(6) nm， b =1.092 0(3) nm， c =1.472 0(4) nm, β = 107.89(3)°, 化学式C20H18N2O, M r =302.36， Z =4, V =1.581 ...合成了N-［(2-羟基-5-甲基苯)（苯基）］亚甲基邻苯二胺，晶体属单斜晶系，空 间群P21/c. 晶胞参数 a = 1.034 0(6) nm， b =1.092 0(3) nm， c =1.472 0(4) nm, β = 107.89(3)°, 化学式C20H18N2O, M r =302.36， Z =4, V =1.581 7(10) nm3 ， D c = 1.268 g/cm3， F （000）= 160，最终偏离因子 R1 = 0.054 1. 结构分析表明，分子间以氢键形成二聚体，二聚体 的分子间互为中心对称. 循环伏安法表明标题化合物的电极反应是一个不可逆的单电子传荷 过程.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.
文摘合成了N-［(2-羟基-5-甲基苯)（苯基）］亚甲基邻苯二胺，晶体属单斜晶系，空 间群P21/c. 晶胞参数 a = 1.034 0(6) nm， b =1.092 0(3) nm， c =1.472 0(4) nm, β = 107.89(3)°, 化学式C20H18N2O, M r =302.36， Z =4, V =1.581 7(10) nm3 ， D c = 1.268 g/cm3， F （000）= 160，最终偏离因子 R1 = 0.054 1. 结构分析表明，分子间以氢键形成二聚体，二聚体 的分子间互为中心对称. 循环伏安法表明标题化合物的电极反应是一个不可逆的单电子传荷 过程.
