Design and Development of the Transition Metal Complexes Having Multi Functional Properties.

过渡金属配合物是介于有机和无机材料之间的一类化合物，具有光、磁、输运等多种功能。为了探索和开发过渡金属配合物的新的多功能性质，我们组织了科研资助项目“具有多功能性质的过渡金属配合物的设计与开发”，在项目期间，（1995-1996年），我们的项目取得了以下显著成果：（1）（BETS）_2FeCl_4的场致绝缘体-金属相变，它是由d-pi相互作用驱动的，（2）（BETS）_2Ga_Fe_XCl_4中超导相与反铁磁相的竞争<1-X>;（3）[Pd（H_2DAG）（HDAG）]TCNQ中d-pi电子转移与质子转移耦合驱动的奇异金属-绝缘体转变（M=Ni，Pd，Pt），（4）新的铁磁体和亚铁磁体的开发，（5）新的自旋交叉配合物的开发，（6）混合价MX链系统中密集非线性激发如孤子或极化子的存在，（7）混合价MMX链系统中的金属-绝缘体转变，（8）过渡金属簇合物的高非线性光学（SHG）的开发，（9）配位聚合物的光诱导配体驱动的晶体振动。

Transition metal complexes which are located between organic and inorganic materials hava a possibility of various kinds of multi-functional properties mixed with optical, magnetic or transport properties. In order to search and develop new multifunctional properties for transition metal complexes, we have organized the research project, grant-in-aid for scientific research whose title is "Design and Development of the Transition Metal Complexes Having Multi-Functional Properties".During the term of the project (1995-1996), the noticeable results of our project are following ; (1) Field induced insulator-to-metal transition in (BETS) _2FeCl_4, which is driven by the d-pi interaction, (2) Competition between the superconducting and antiferromagnetic phases in (BETS) _2Ga_<1-X>Fe_XCl_4, (3) An exotic metal-insulator transition driven by the d-pi electron transfer coupled with proton transfer in [Pd (H_2DAG) (HDAG)]TCNQ (M=Ni, Pd, Pt), (4) Development of new ferromagnets and ferrimagnets, (5) Development of new spin crossover complexes, (6) Existence of dense nonlinear excitations such as solitons or polarons for mixed-valence MX chain system, (7) Metal-insulator transition in mixed-valence MMX-chain system, (8) Development of highly nonlinear optics (SHG) for transition metal cluster complexes, (9) Photo-induced ligand-driven crystalline vibration for coordination polymer.