| 王迎进,孙金鱼,石玉芳,任光明,赵明根.化学通报,2019,82(7):636-641. |
| 二茂铁基查尔酮衍生物超快三阶非线性光学响应 |
| Ultrafast Third-Order Nonlinear Optical Response of Ferrocene-Based Chalcone Derivatives |
| 投稿时间：2019-01-04 修订日期：2019-02-19 |
| DOI： |
| 中文关键词: 二茂铁衍生物 查尔酮 Z-扫描技术 超快三阶非线性光学响应 合成 |
| 英文关键词:Ferrocene derivatives, Chalcone Z-scan technique, Ultrafast third-order nonlinear optical response, Synthesis |
| 基金项目:“山西省1331工程”重点学科建设计划 (2017122) |
|
| 摘要点击次数: 1559 |
| 全文下载次数: 0 |
| 中文摘要: |
| 合成三例二茂铁基查尔酮衍生物：1-二茂铁基-3-(5-溴噻吩-2-基)-2-丙烯-1-酮(a)、1-二茂铁基-3-(4-溴噻吩-2-基)-2-丙烯-1-酮(b)和1-二茂铁基-3-(5-氯噻吩-2-基)-2-丙烯-1-酮(c)；采用1H NMR、13C NMR和HR-MS对化合物a~c进行了结构表征,并测定了其热学性质；运用密度泛函理论方法进行结构优化,并计算得到了它们的分子轨道能量和极化率；采用紫外-可见吸收光谱与Z-扫描技术(532 nm,180 fs)分别测定了三种化合物的线性和非线性光学性质。结果表明：a~b的紫外吸收波长发生明显红移,且a的非线性吸收幅度、极化率和分子超极化率最大；a、b和c均存在分子内电荷转移现象,表现出超快三阶非线性光学响应。 |
| 英文摘要: |
| Three novel chalcone derivatives ofSferrocenyl, 1-ferrocenyl-3-(5-Bromothiophen-2-yl)-2-propen-1-one (a), 1-ferrocenyl-3-(4-bromothiophen-2-yl)-2-propen-1-one (b) and 1-ferrocenyl-3-(5-chlorthiophen-2-yl)-2-propen-1-one (c) were synthesized and characterized by 1H NMR, 13C NMR and HR-MS. The thermal properties of compounds a~c were measured. Their molecular orbital energies and polarizabilities were calculated at density functional theory level, and then the electronic cloud figures of the molecular orbitals were obtained. Their linear and nonlinear optical properties were investigated using UV-Vis absorption spectra and Z-scan technique (532 nm, 180 fs), respectively. The results indicate that the absorption of compounds a~c increases significantly, and the nonlinear absorption amplitude, polarization and molecular hyperpolarization of compound a is the largest one. There is distinct intramolecular charge transfer phenomenon within these compounds, which results to interesting ultrafast third-order nonlinear optical response. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| 关闭 |
|
|
|