[WS3Cu2]簇基超分子框的组装、结构及其三阶非线性光学响应
[WS3Cu2]cluster-based supramolecular frame:Assembly,structure,and third-order nonlinear optical response
余蕙敏 1王志康 1李洁 1宋瑛林 1杜明浩 1郎建平1
作者信息
- 1. 苏州大学材料与化学化工学部,苏州市资源分子精准转化重点实验室,苏州 215123
- 折叠
摘要
将二(4-吡啶)硫烷(L1)、4,4'-二(4-吡啶)二苯甲酮(L2)分别与(Et4N)(Tp*WS3)(A)(Tp*=三(3,5-二甲基吡唑)氢合硼酸根)和[Cu(MeCN)4]PF6进行反应,得到 2 个 W/Cu/S簇基超分子化合物[Tp*WS3Cu2(L1)]2(PF6)2·2MeCN·2CHCl3(1·2MeCN·2CHCl3)和[Tp*WS3Cu2(L2)(MeCN)]2(PF6)2·4MeCN(2·4MeCN).对配合物 1·2MeCN·2CHCl3和 2·4MeCN 分别进行了单晶 X射线衍射、核磁、质谱、红外、紫外可见和元素分析表征.单晶X射线衍射分析表明,它们是由2个L1/L2配体连接2个[Tp*WS3Cu2]+簇核形成的阳离子型簇基超分子框.核磁氢谱和高分辨电喷雾离子化质谱(HRESI-MS)证明它们在溶液中具有一定的稳定性.并利用Z扫描技术测试了超分子化合物1·2MeCN·2CHCl3和2·4MeCN溶液的三阶非线性光学特性,测试结果表明它们的三阶非线性光学响应强于前驱体A.
Abstract
Reactions of(Et4N)(Tp*WS3)(A)(Tp*=hydridotris(3,5-dimethylpyrazol-1-yl)borate)and Cu(Ⅰ)salts[Cu(MeCN)4]PF6 with di(pyridin-4-yl)sulfane(L1)or bis(4-(pyridin-4-yl)phenyl)methanone(L2)gave rise to two W/Cu/S cluster-based supramolecular compounds with the formula of[Tp*WS3Cu2(L1)]2(PF6)2·2MeCN·2CHCl3(1·2MeCN· 2CHCl3)and[Tp*WS3Cu2(L2)(MeCN)]2(PF6)2·4MeCN(2·4MeCN),respectively.Both cluster-based supramolecular compounds were structurally characterized by single-crystal X-ray diffraction,1H NMR,MS,IR,UV-Vis,and elemental analysis.Single crystal X-ray diffraction demonstrates that both compounds are cationic cluster-based supramolecule frames with similar butterfly-like cores.1H NMR and high-resolution electrospray ionization mass spectrometry(HRESI-MS)demonstrated their stability in DMF solution.In addition,the Z-scan measurement reveals the third-order nonlinear optical responses of 1·2MeCN·2CHCl3 and 2·4MeCN were enhanced compared to that of their precursor A.CCDC:2257638,1·2MeCN·2CHCl3;2257639,2·4MeCN.
关键词
W/Cu/S簇/超分子框/三阶非线性光学性质Key words
W/Cu/S clusters/supramolecular frame/third-order nonlinear optical property引用本文复制引用
基金项目
国家自然科学基金(21773163)
苏州市资源分子精准转化重点实验室项目(SZS201905)
出版年
2024
NETL
NSTL
万方数据