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银(Ⅱ)离子在常温下的不稳定性是众所周知的.但当它与氮杂环有机化合物络合时,其稳定性大大地增强,这对进一步研究银络合物的结构和性能关系有很大意义。H.Hal-pern、J.A.McMillan及R.D.Gillard等人以ESR为工具,对α、α-联吡啶银(Ⅱ)络合物的配位结构进行了研究,他们的研究表明,银(Ⅱ)离子只与配位体的二个氮原子直接配位络合.对此我们存有疑问,进行了更深入的研究,果然发现随着周围环境不同,银(Ⅱ)离子的配位情况会发生变化.在晶格场中,银(Ⅱ)离子可以与配位体中的四个氮原子络合.本文介绍在不同情况下,银(Ⅱ)离子与α、α-联吡啶(简写为α、α-bipy)的配位络合情况,并根据配位场理论,采用实验所得的ESR波谱参数进一步计算不同配位时银(Ⅱ)离子的电子结构参数,并对配位络合情况提出我们的看法.
The instability of silver (II) ions at room temperature is well known, but when it is complexed with an azacyclic organic compound, the stability of the silver (II) ion is greatly enhanced, which is of great importance for further studies on the structure and properties of silver complexes Great meaning. The coordination structures of α, α-bipyridyl silver (Ⅱ) complex have been studied by H. Hal-pern, JAMcMillan and RDGillard et al using ESR as a tool. Their research shows that silver (Ⅱ) Only with the two ligands of the direct coordination of the two nitrogen atoms.We have questions for this, conducted a more in-depth study, and indeed found that with the surrounding environment, the coordination of silver (Ⅱ) ions will change In the lattice field, silver (Ⅱ) ions can complex with four nitrogen atoms in the ligands.In this paper, we introduce the interaction of silver (Ⅱ) ions with α, α- α-bipy) coordination complex, and according to the coordination field theory, the experimental ESR spectra parameters are used to further calculate the electronic structure parameters of silver (Ⅱ) ions with different coordination states, and we propose the coordination coordination situation the opinion of.