具有单晶到单晶转化的Cu(Ⅰ)配合物的发光性质
Luminescence properties of Cu(Ⅰ)complexes with single-crystal-to-single-crystal conversion
牟文龙 1孙振洲 1范思杰 1侯川兵 2李中峰 1韩洪亮 1王果 1杨玉平 3金琼花4
作者信息
- 1. 首都师范大学化学系,北京 100048
- 2. 首都师范大学资源环境与旅游学院,北京 100048
- 3. 中央民族大学理学院,北京 100081
- 4. 首都师范大学化学系,北京 100048;中国科学院福建物质结构研究所,结构化学国家重点实验室,福州 350002
- 折叠
摘要
选用2-(N,N-双(二苯基膦基甲基))胺基吡啶(bdppmapy)为膦配体、二吡啶并[3,2-a:2',3'-c]吩嗪(dppz)为氮配体、[Cu(CH3CN)4]BF4为铜盐,在常温下进行反应,制备了3种新型Cu(Ⅰ)配合物,分别为[Cu(dppz)(bdppmapy)]2(BF4)2·H2O(CuBF4-1)、[Cu(dppz)(bdppmapy)]BF4(CuBF4-2)和[Cu(dppz)(bdppmapy)]BF4(CuBF4-3).获得了CuBF4-1 和 CuBF4-3 的单晶,发现了单晶到单晶转化过程的现象,并探究了溶剂分子的存在对配合物结构和光物理性能的影响.通过单晶X射线衍射确定配合物CuBF4-1和CuBF4-3的结构,使用粉末X射线衍射(PXRD)、红外光谱(IR)和核磁共振氢谱/磷谱(1H/31P NMR)对合成的3个配合物进行结构表征.对配合物进行紫外可见吸收光谱(UV-Vis)、荧光光谱、荧光寿命及量子产率等光物理性质的表征和分析,比较了配合物发光性质的差异,探讨了溶剂分子对配合物结构和光物理性质的影响规律.太赫兹时域光谱对配合物的研究提供了帮助.
Abstract
2-(N,N-bis(diphenylphosphino)methyl)aminopyridine(bdppmapy)was selected as a phosphine ligand,dipyrido[3,2-a:2',3'-c]phenazine(dppz)as a nitrogen ligand,and[Cu(CH3CN)4]BF4 as a copper salt to react at room temperature.Three new Cu(Ⅰ)complexes were prepared,namely[Cu(dppz)(bdppmapy)]2(BF4)2·H2O(CuBF4-1),[Cu(dppz)(bdppmapy)]BF4(CuBF4-2),and[Cu(dppz)(bdppmapy)]BF4(CuBF4-3).Single crystals of CuBF4-1 and CuBF4-3 were obtained.The phenomenon of single-crystal-to-single-crystal conversion was found,and the influence of solvent molecules on the structure and photophysical properties of coordination geometry was explored.The struc-tures of complexes CuBF4-1 and CuBF4-3 were determined by single-crystal X-ray diffraction,and the structures of the three complexes were characterized by powder X-ray diffraction(PXRD),IR,and hydrogen/phosphorus NMR(1H/31P NMR).The photophysical properties of the complexes were characterized and analyzed by UV-Vis absorp-tion spectrum,fluorescence spectrum,fluorescence lifetime,and quantum yield.The differences in the lumines-cence properties of the complexes were compared,and the influence of solvent molecules on the structure and photo-physical properties of coordination geometry was discussed.Terahertz time-domain spectroscopy provided assis-tance in the study of complexes.CCDC:2309825,CuBF4-1;2309824,CuBF4-3.
关键词
Cu(Ⅰ)配合物/弱作用力/晶体结构/发光性质/太赫兹时域光谱Key words
Cu(Ⅰ)complex/weak force/crystal structure/luminescence property/terahertz time-domain spectroscopy引用本文复制引用
基金项目
北京市教委-市自然科学基金委联合资助项目(23JB0006)
出版年
2024
NETL
NSTL
维普
万方数据