Copper(II) complexes of p-nitrophenaceturic acid: Magnetic and thermal behavior of copper(II) p-nitrophenaceturate dihydrate, anhydrous copper(II) p-nitrophenaceturate and the corresponding methanol adduct
作者:D.A. Young、S.S. Chadwick、K.E. Hyde
DOI:10.1016/s0020-1693(00)90782-5
日期:1981.1
Abstract A hydrated copper(II) p-nitrophenaceturate complex, an anhydrous analogue and a methanol adduct were prepared and examined by various physical methods in order to test proposed structure-rearrangement criteria. The desolvation process were investigated by thermal gravimetric analysis. Magnetic measurements were made by the absolute Guoy method over the temperature range of 112–342 K. The UV
摘要制备了水合对硝基苯乙酸铜(II),无水类似物和甲醇加合物,并通过各种物理方法对其进行了检验,以检验拟议的结构重排标准。通过热重分析研究了去溶剂化过程。磁性测量是通过绝对Guoy方法在112–342 K的温度范围内进行的。记录了复合物固体样品的UV,可见光和IR光谱。X射线衍射用于获得配合物的粉末图案。水合配合物和甲醇加合物表现出正常的准记忆行为。两种不同的无水配合物制备方法表明,其顺磁性与场强有关,并且其磁化率随样品的不同而不同。无水物的磁化率与温度的关系表明存在反铁磁性。红外光谱表明配位仅通过羧酸酯基团发生。水合和无水配合物的X射线粉末图谱比较表明,脱水会导致重排。从结果的考虑看来,先前提出的结构重排标准对于制备无水化合物是有效的。