摘要
四硫富瓦烯及其衍生物是性能优良的电子给体.本文利用Sonogashira反应将吡啶基团连接在四硫富瓦烯单元上,合成了"A-C≡C-TTF-C≡C-A"型四硫富瓦烯共轭体系衍生物4,4′(5′)-二-(4-吡啶乙炔基)-四硫富瓦烯(TTF4N).吸收光谱、电化学和Pb2+配位键合研究表明,三键作为桥基能够有效实现分子内的电荷转移.金属Pb2+离子与吡啶基团的配位能够引起TTF4N的吸收光谱、核磁氢谱和电化学性质的显著变化.
Owing to unique n electron-donating-properties, tetrathiafulvalene （TTF） and its derivatives have been extensively studied over the past decade. In the present work, tetrathiafulvalene acetylene derivative [ A-C≡C-TTF-C≡C-A], 4,4′（5′）-bis（4-pyridylethynyl） tetrathiafulvalene （TTF4N）, has been synthesized to provide insight into the nature of the donor-acceptor interaction via triple bonds. Spectroscopic, electrochemical and Pb^2＋ -binding studies demonstrate that the TTF unit interacts with electron-accepting pyridine groups via triple bonds, thus leading to intramolecular charge transfer. Moreover, TTF4N show remarkable sensing and coordinating properties toward pb^2＋.
出处
《影像科学与光化学》
CAS
CSCD
北大核心
2009年第1期32-37,共6页
Imaging Science and Photochemistry
基金
国家自然科学基金项目(20732007
20728506
20671022)
科技部国家重点基础研究发展规划(2006CB806105
2007CB808004
2007CB936001)
中国科学院基础局资助项目
关键词
四硫富瓦烯
分子内电荷转移
配位作用
tetrathiafulvalene, intramolecular charge transfer, coordination interaction
