Study of properties and function of metal-complex systems under high pressure

本课题旨在从以下几个方面研究高压下金属配合物体系的性质和功能。期望高压通过缩短金属与配体之间以及金属与配合物分子之间的距离，直接和连续地作为金属配合物分子和系统的电子态的调制场。本文利用金刚石砧电池和微型光谱仪通过光吸收研究了高压与金属配合物电子态之间的关系。(1)建立金刚石砧室作为高压装置。(2)构建适合金刚石砧池使用的微谱仪系统。(3)构建了用于金刚石砧池中红宝石芯片压力标定的微型发光光谱仪。(4)产生压力条件的数据采集：金刚石砧片直径、垫片厚度及孔径、传压介质。(5) a)一维混价铂配合物的合成。b)高压下铂配合物的照片测量。c)混合价态随高压调制的发现。(6) a)具有配体的银配合物在高压下由于结构变化而表现出显色性的照片测量。b)发现银配合物表现出压力变色。

The purpose of this project is to study properties and function of metal-complex systems under high pressure on the following viewpoints. The high pressure is expected directly and successively to function as a kind of modulation field for the electronic state of metal-complex molecules and systems through the shortening of the distance between the metal and the ligand and between the metal-complex molecules.The following has been performed to study the correlation between the high pressure and the electronic state of metal complexes through the photo absorption using a diamond-anvil-cell and a micro spectrometer.(1) Building up diamond-anvil-cells as a high-pressure apparatus.(2) Construction of a micro-spectrometer system suitable for using the diamond-anvil-cell.(3) Construction of a micro luminescence-spectrometer for ruby chip in diamond-anvil cell to calibrate pressures.(4) Data collection of conditions to generate pressures : culet diameter of diamond-anvil, thickness and hole diameter of gasket, pressure-transmitting medium.(5) a) Synthesis of one-dimensional mixed-valence platinum complexes.b) Photo measurements of the platinum complexes under high pressures.c) Find of modulation of the mixed-valence state with the high pressure.(6) a) Photo measurements of a silver complex with a ligand exhibiting a chromism due to a structure change under high pressures.b) Finding that the silver complex show a pressure-chromism.