Abstract At ambient conditions blue prismatic crystals of the coordination complex (CC) diaquo-bis-pyrazine-2-carboxylato (Pca) copper (II); [CuII(Pca)2(H2O)2], CC1, has been synthesized by self-assembly method. The nanosized 1 is prepared using the same molar ratio in H2O by ultrasonic irradiation. The structure of CC1 is evaluated by single-crystal X-ray diffraction. CC1 and nanosized 1 are characterized by elemental analysis, spectroscopic methods, PXRD and TEM. The luminescence emissions of CC1 and nanosized 1 are studied and utilized to be used as sensors for detection of Fe3+ ion and nitrobenzene. The catalytic activities of nanosized 1 towards degradation of different organic dyes are performed in presence of H2O2 under ambient conditions, UV-light and ultrasonic irradiation. The nanosized 1 as heterogeneous catalyst exhibits high catalytic activity for degradation of eosin-Y (EO) and indigo carmine (IC) dyes. Mechanism of degradation using different scavenger techniques has been proposed and discussed. Catalytic oxidation process is mainly caused by OH radicals.

中文翻译：

---

diaquo-bis-(pyrazine-2-carboxylato)铜(II)配合物的晶体结构和声化学纳米合成：传感和光催化活性

摘要 在环境条件下，配位配合物 (CC) diaquo-bis-pyrazine-2-carboxylato (Pca) 铜 (II) 的蓝色棱柱状晶体；[CuII(Pca)2(H2O)2]，CC1，已通过自组装方法合成。纳米尺寸 1 是通过超声波照射在 H2O 中使用相同摩尔比制备的。通过单晶 X 射线衍射评估 CC1 的结构。CC1 和纳米尺寸 1 通过元素分析、光谱方法、PXRD 和 TEM 进行表征。研究了 CC1 和纳米尺寸 1 的发光发射，并将其用作检测 Fe3+ 离子和硝基苯的传感器。纳米尺寸 1 对降解不同有机染料的催化活性是在 H2O2 存在下在环境条件、紫外线和超声波照射下进行的。纳米尺寸 1 作为多相催化剂对降解曙红-Y (EO) 和靛蓝胭脂红 (IC) 染料具有高催化活性。已经提出并讨论了使用不同清除剂技术的降解机制。催化氧化过程主要是由OH自由基引起的。