|
| 新型环金属钌配合物的合成和光物理性能研究 |
| Synthesis and Light-physical Property of a New Cyclometalated Ruthenium Complex |
| 投稿时间：2016-09-09 |
| DOI： |
| 中文关键词: 钌配合物 联吡啶 合成 发光性能 热稳定性 |
| 英文关键词: ruthenium complexes 2,2'-bipyridine synthesis light-physical property thermo-stability |
| 基金项目:云南省省院省校科技合作项目( 2015IB019)、昆明市科技计划项目(2016-1-G-03331)。 |
|
| 摘要点击次数: 3739 |
| 全文下载次数: 4274 |
| 中文摘要: |
| 以2,4-二氟苯硼酸、4,4'-二溴-2,2'-联吡啶为原料合成了4,4'-二(2,4-二氟苯基)-2,2'-联吡啶，并以此为N^N配体合成新型离子型环金属钌配合物。采用元素分析、红外光谱、1H-NMR以及质谱表征确认了产物的结构，并考察了其光物理性能。结果表明，联吡啶4,4'-位上取代基团的引入改变了配合物的MLCT态，使其最大发射波长(λmax)较经典配合物Ru(bpy)32+(λmax=590 nm)红移至613 nm；配合物的初始分解温度为356℃，具有较好的热稳定性。 |
| 英文摘要: |
| A new cyclometalated ruthenium complex was synthesized from 2,4-difluorobenzeneboronic acid, 4,4'-dibromo-2,2'-bipyridine and cis-bis-(2,2'-bipyridine)dichlororuthenium(II) dehydrate. The complex was characterized by element analysis, IR spectra, 1H-NMR and mass spectrometry. Its UV-Vis absorption and photoluminescence was measured. The data showed that an introduction of the 2,4-difluoro-phenyl substituent into the 4,4'-site of 2,2'-bipyridine would alter metal-to-ligand charge transfer (MLCT) transition, leading to a significant red shift of the photoluminescence spectra (λmax) from 590 to 613 nm. The cyclometalated ruthenium complex, as evidenced by TG measurements, has good thermo- stability and the decomposition temperature is up to 356℃. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |
|
|
|
