DEVELOPMENT OF OLIGOANILINE DERIVATIVES AS ION SENSORS

低聚苯胺衍生物作为离子传感器的开发

• 批准号: 2521188
• 负责人: ROBERT A SINGER
• 金额: $ 2.27万
• 依托单位: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
• 依托单位国家: 美国
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-11-16 至
• 项目状态: 未结题
• 来源: https://reporter.nih.gov/project-details/2521188
• 关键词: amination; analytical chemistry; aniline dye; catalyst; cations; chemical binding; chemical synthesis; electrochemistry; heavy metals; oxidation reduction reaction; palladium

Recently we have worked out efficient methods for constructing well- defined oligoanilines through the use of palladium catalyzed aminations of aryl halides. To further demonstrate the utility of this approach, studies will be carried out to prepare oligoaniline derivatives which may function as metal ion sensors. Donors will be incorporated into the oligoanilines such that metal binding enhances the conductivity. Crown ethers and other macrocycles will be included in the designs for size selective metal ion coordination. Oxidation potential of metal ions may also be employed as a means of detection. Ions with the appropriate redox potential can bind to the oligomer film deposited on electrodes and oxidize or reduce the material, which should result in a changes in conductivity and current.

最近，我们研究出有效的方法来建造良好的 通过使用钯催化的胺化来确定低聚苯胺 芳基卤化物。为了进一步证明这种方法的实用性，研究 将进行制备可发挥作用的低聚苯胺衍生物 作为金属离子传感器。捐助者将被纳入苯胺低聚物中 使得金属结合增强了电导率。冠醚及其他 大环化合物将包含在尺寸选择性金属离子的设计中 协调。金属离子的氧化电位也可用作 检测手段。具有适当氧化还原电位的离子可以结合 低聚物薄膜沉积在电极上并氧化或还原 材料，这会导致电导率和电流的变化。