Syntheses of high-sensitive polyfunctional complexes and their basic and applied properties

本课题的研究目的是合成具有致变色性能的新型螯合物。变色性是指由于溶剂、温度、压力等化学或物理环境条件的变化而发生的可逆的颜色变化。电子(雷达克反应)、光，称为溶致变色、热致变色、压致变色、电致变色。光致变色。在这项研究中。在不同的有机溶剂中，镍、铜混配(单核或双核)络合物可以得到溶剂型和热致变色性。观察这类变色性的关键因素是：(1)具有中等配位场强度的配合物，以及所用溶剂的给体和受体性质。我们使用了一些环二胺、直链二胺和叔胺作为配位配体和各种类型的β-二酮酸酯。在电致变色体系中，我们得到了一些含有多齿Schiff碱配体或三齿双(咪唑)吡啶的Fe(Il)和Fe(M)自旋交叉配合物，对于电致变色体系，我们可以尝试合成具有稳定的多氨基-多羧酸盐配体的Mn(Il和Ill)配合物，在这种情况下，Mn(II)体系是无色的，而Mn(III)类似物是深红色的，这是非常稳定和可逆的体系。未来我们必须尝试具有电致变色特性的混合价体系。我们还得到了多种具有四元系的混配稀土配合物，即三联吡啶(Terpy)、乙酰丙酮(Acac)。硝酸盐：LN(Terpy)(Acac)(NO3)2。

The aim of this research project is syntheses of new chelate complexes which have ckiromotropic properties. Chromotropism means the reversible color change due to the changes of chemical or physical environmental conditions such as solvents, temperaure, pressure. electron(redax reaction), light, which is called as Solvatochromism, Thermochromism, Piezochromism, Electrochromism. Photochromism. In this research. We could obtain solvato- and thermo-chromism with Ni(ll) and Cu(ll) mixed ligand (mono- or di-nuclear) complexes in various organic solvents. The key factors for observing such kinds of chromorropisms are (1)the complexes which have an intermediate ligand field strength and (2>he donor and acceptor properties of the solvents used. We used some cyclic diamines, linear ones and the terreamine as the partner ligand and various kinds of beta-diketonates. triketonates and tetraketonate as the another partner, We have Obtained some Fe(Il) and Fe(m) spin-crossover complexes which contain polydentate Schiff-base ligands or tridentate his (imidazole)pyridine, For the electrochromic system, we could try to synthesize Mn(Il and Ill) complexes with a stable polyamino-polycarboxylate ligand, In this case, Mn(II) system is color-less and the Mn(III) analogue is deep red, which is very stable and reversible system. We have to try mixed valence system which show interesting electrochromism in future. We have also obtained many kinds of mixed ligand lanthanide complexes which have the quarternary system, i.e., terpyridine(terpy), acerylacetonate(acac). and nitrate (NO3) : Ln(terpy)(acac)(No3)2.