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大环化合物在主客体化学及分子识别中具有重要意义。4-酰代双吡唑酮是一类新型多齿螯合剂,与二胺类化合物反应,可制得含C=O,C=N等多种功能团的配体及配合物,用于研究结构性能关系、金属离子间及与配体间的能量传递等。本文首次将双吡唑酮与二胺类(乙二胺,1,2-丙二胺)缩合,在模板剂存在下制得Schiff-base型大环多核铜配合物。对配合物进行了MS(FAB),FTIR,UV-vis,EPR等表征.由于难以得到配合物单晶,我们用新发展的扩展X射线吸收精细结构(EXAFS)方法研究了配合物中铜的配位近邻结构。
Macrocyclic compounds in the host-guest chemistry and molecular recognition is of great significance. 4-Acyl-bi-pyrazolones are a new class of multidentate chelating agents. With the reaction of diamines, ligands and complexes containing many functional groups such as C = O, C = N can be prepared for the study Structural properties, energy transfer between metal ions and ligands. In this paper, for the first time, bispyrazolones and diamines (ethylenediamine, 1,2-propanediamine) are condensed to obtain Schiff-base macrocyclic polynuclear copper complexes in the presence of a templating agent. The complexes were characterized by MS (FAB), FTIR, UV-vis, EPR, etc. Since it is difficult to obtain the single crystal of the complex, we have studied the copper (Ⅱ) complex in the complex with the newly developed extended X-ray absorption fine structure (EXAFS) Coordination of adjacent structures.