Control of electronic phases and physical properties in quasione-dimensional halogen-bridged metal complexes through the structural modifications

通过结构修饰控制准维卤桥金属配合物的电子相和物理性质

• 批准号: 21740224
• 负责人: TANAKA Hisaaki
• 金额: $ 2.91万
• 依托单位: Nagoya University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2009
• 资助国家: 日本
• 起止时间: 2009 至 2010
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21740224/
• 关键词: ハロゲン架橋金属錯体; 電子相制御; ソリトン; ポーラロン; 電子スピン共鳴; 導電性高分子; キャリヤ再結合

Electronic states of quasi-one-dimensional halogen-bridged metal complexes, so called MX- or MMX-chains, have been studied by electron spin resonance (ESR) technique. Spin moments of palladium (III) are induced from the nonmagnetic state in the Ni-Pd mixed-metal complexes as determined from the spin susceptibility enhancement and g values. This result shows clear ligand molecule dependence. In the MMX-chain complexes having binary countercations, dehydration-induced reversible change of the electronic state has been demonstrated from the change of the ESR spectrum. Furthermore, thermal excitation of soliton has been observed in the dehydrated complexes.

用电子自旋共振(ESR)技术研究了准一维卤素桥联金属络合物的电子态。由自旋磁化率增强和g值确定，Pd(III)的自旋矩是由Ni-Pd混合金属络合物中的非磁性诱导而来的。这一结果显示了明显的配基分子依赖性。在具有二元反离子的MMX链配合物中，从ESR谱的变化中可以看出脱水引起的电子态的可逆变化。此外，在脱水的络合物中还观察到了孤子的热激发。

项目成果

Water-Vapor-Induced Reversible Switching of Electronic States in an MMX-Type Chain Complex with Retention of Single Crystallinity

• DOI: 10.1002/anie.200905608
• 发表时间: 2010-01-01
• 期刊: ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
• 影响因子: 16.6
• 作者: Iguchi, Hiroaki;Takaishi, Shinya;Kuroda, Shin-ichi
• 通讯作者: Kuroda, Shin-ichi