Cu(4-(2-pyridylazo)resorcinol)2 | 188308-91-0

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡啶及其衍生物
• 英文名称: Cu(4-(2-pyridylazo)resorcinol)2
• 英文别名: Cu(PAR)2
• CAS: 188308-91-0
• 化学式: C₂₂H₁₆CuN₆O₄
• 分子量: 491.953
• InChiKey: ITJHZEJDGKSWKB-FZHLCEHXSA-L

反应信息

• 作为产物：
  描述：

  吡啶-(2-偶氮-4)间苯二酚 、 copper(ll) sulfate pentahydrate 生成 Cu(4-(2-pyridylazo)resorcinol)2
  参考文献：
  名称：

  4-(2-吡啶偶氮)间苯二酚及其与锌(II)和铜(II)配合物的拉曼光谱和DFT理论研究

  摘要：

  摘要 使用羟胺还原银胶体记录了 4-(2-吡啶偶氮)间苯二酚 (PAR) 及其 Zn(II) 和 Cu(II) 配合物的表面增强拉曼散射 (SERS) 光谱。分子几何优化、分子静电势 (MEP) 分布和振动频率计算是通过密度泛函理论 (DFT) 计算对 PAR 分子及其 Zn(PAR)2 金属配合物进行的。PAR:金属盐3:1摩尔比制备的样品的SERS光谱，主要显示了Zn(PAR)2或Cu(PAR)2配合物的光谱特征，也显示了吸附在银表面的PAR分子的光谱特征，而 1:1 摩尔比样品的 SERS 光谱仅显示 PAR-金属配合物的光谱特征。与 Zn(II)、Cu(II)、Fe(III)、

  DOI：

  10.1016/j.molstruc.2008.08.022

文献信息

• A novel visible spectrophotometric method for the determination of ethamsylate in pharmaceutical preparations and biological samples
  作者：Meiyun Zhang、Yan Zhang、Quanmin Li

  DOI：10.1016/j.saa.2009.12.039

  日期：2010.3

  A highly sensitive visible spectrophotometric method has been developed to determine ethamsylate in this paper, which is based on using Cu(II) as spectroscopic probe reagent. The study indicates that in the presence of SCN- and KNO3, Cu(II) is reduced to Cu(I) by ethamsylate at pH 5.0, and the in situ formed Cu(I) reacts with SCN- to form into the white emulsion CuSCN that could be stayed upon the surface of water. According to the amount of residual Cu(II), the amount of ethamsylate can be indirectly determined. Under the optimal conditions, Beer's law is applicable in the range of 0.2-9.0 mu g/mL (7.60 x 10(-7)-3.42 x 10(-5) mol/L) for aqueous standard solution of ethamsylate with linear correlation coefficient of 0.9998. The detection limit and relative standard deviation are 0.12 mu g/mL and 1.5%, respectively. And the molar absorption coefficient of the indirect determination of ethamsylate is 1.0 x 10(5) L/mol cm. The method is successfully applied to determine ethamsylate in pharmaceutical preparations and biological samples. (C) 2009 Elsevier B.V. All rights reserved.