MOLECULAR DESIGN AND SYNTHESIS OF COMPOSITE BI-AND POLY-NUCLEAR COMPLEXES.

本研究利用[Pt（4-mpyt）_4] ^<2+>的金属结合能力，以[Pt（4-mpyt）_4] ^<2+>为原料合成了复合双核配合物。后过渡金属如Ni（II）和Co（II）可以以中等产率掺入该体系中。两种配合物对Pt（II）均为四方平面结构，对Ni（II）和Co（II）均为四方锥结构。顶端与Co或Ni的连接有助于系统的稳定。这两种配合物在氧化成d^7-d^7体系时都增加了金属间的相互作用，在形式上该体系不存在明显的相互作用。特别是[Pt^<III>（4-mpyt）_4Co^<II>X]具有很强的金属间相互作用，从而产生抗磁性。早期过渡金属可以以V=O或Cr=O的氧化物形式掺入，特别是Cr（IV）在该体系中具有独特的配位圈，这在单核体系中是不存在的。此外，Cr（III）配合物[Pt（4-mpyt）_4Cr^<III>Cl]被五个配位原子以四方锥的形式包围，这在Cr（III）状态下是不存在的。(1)第一过渡金属无论在早期还是晚期都能形成[Pt（4-mpyt）_4MX]分子。四个N原子配位到第一过渡金属由于硬金属的偏好相比，软S原子。(3)在[Pt（4-mpyt）_4Cr=O]和[Pt（4-mpyt）_4V=O]的情况下，配合物均属于P4/ncc空间群。吡啶硫醇氧化生成的二硫代联吡啶被广泛用作生物检测试剂或合成试剂，它的结构和功能是一个复杂的有机化学过程，是一个复杂的有机化学过程。

In this research, the composite binuclear complex was prepared from [Pt (4-mpyt) _4] ^<2+> using the metal incorporating ability of this complex. The late transition metals as Ni (II) and Co (II) can be incorporated in this system with moderate yield. Both complexes have square planar structure for Pt (II), and tetragonal pyramidal either for Ni (II) and Co (II). The apical ligation to Co or Ni contribute for the stabilization of the system. Both complexes increase the inter metallic interaction upon oxidation to d^7-d^7 system, formally no apparent interaction present for the system. Especially, [Pt^<III> (4-mpyt) _4Co^<II>X] has strong inter metallic interaction causing diamagnetism as a result. The early transition metals can be incorporated in the form of its oxides as V=O or Cr=O.Especially, Cr (IV) has quite unique coordination sphere in this system that never happened in the mononuclear system. Furthermore, Cr (III) complex, [Pt (4-mpyt) _4Cr^<III>Cl], is surrounded by five ligating atoms with square pyramidal fashion that never appeared in Cr (III) state.The x-ray structural results show the evidence as follows. (1) Regardless of early or late, first transition metals can form [Pt (4-mpyt) _4MX] molecule. Four N atoms coordinate to first transition metals due to the hard metal preference compared to the soft S atoms. (3) In the case of [Pt (4-mpyt) _4Cr=O] or [Pt (4-mpyt) _4V=O], the complexes are crystallizes in the space group P4/ncc. As a result, the inter-molecular linkage through molecular 4 fold axis forms crystallographic 4 fold axis and making up the one dimensional system.Dipyridine disulfide formed by the oxidation of pyridine thiol is widely used as a bio assay reagent or the synthet