两个基于氮、膦混合配体的铜(Ⅰ)配合物的合成、光谱学性质和太赫兹时域光谱 |
Syntheses, Spectroscopic Properties and THz Time Domain Spectroscopy of Two Copper(Ⅰ) Complexes Based on N-Donor and P-Donor Ligands |
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摘要: 在甲醇和二氯甲烷的混合溶剂中合成了2个新的铜(Ⅰ)配合物,[Cu(bdppmapy)(2,2'-bipy)]BF4(1)和[Cu(bdppmapy)(2,2'-bipy)]I(2)(bdppmapy=N,N-二苯基膦甲基-2-氨基吡啶,2,2'-bipy=2,2'-联吡啶),通过X射线单晶衍射、元素分析、核磁共振氢谱、磷谱、荧光光谱和太赫兹时域光谱对2个配合物进行了分析和表征。1是由[Cu(CH3CN)4]BF4,bdppmapy和2,2'-bipy以1:1:1的比例混合得到的单核配合物。中心Cu(Ⅰ)离子通过与双膦配体(bdppmapy)以及含氮配体(2,2'-bipy)的螯合作用形成变形四面体结构。与1相似,2由CuI,bdppmapy和2,2'-bipy以1:1:1的比例混合得到。在配合物2的非对称单元中,bdppmapy和2,2'-bipy配体分别与中心铜(Ⅰ)离子螯合。荧光光谱表明所有的发射峰均源于金属-配体的荷移跃迁(MLCT)。太赫兹时域光谱的应用也为配合物研究提供了有用的信息。 |
关键词: 铜配合物 荧光 太赫兹谱 2,2'-联吡啶 N,N-二苯基膦甲基-2-氨基吡啶 |
基金项目: 国家自然科学基金(No.21171119,81573822,11574408,21671144)和北京市自然科学基金(No.2172017,2172012)资助项目 |
Abstract: Two novel copper(Ⅰ) complexes[Cu(bdppmapy)(2,2'-bipy)]BF4 (1) and[Cu(bdppmapy)(2,2'-bipy)]I (2) (2,2'-bipy=2,2'-bipyridine, bdppmapy=N,N-bis((diphenylphosphino)methyl)-2-pyridinamine) have been synthesized in mixed solvents of CH3OH and CH2Cl2 (1:1, V/V) and characterized by single-crystal X-ray diffraction, elemental analysis, IR, 1H NMR and 31P NMR spectroscopy, fluorescence spectra and THz time domain spectroscopy (THz-TDS). Complex 1, a mononuclear complex, was generated by the reaction of[Cu(CH3CN)4]BF4 and bdppmapy with 2,2'-bipy in 1:1:1 molar ratio. In complex 1, the central Cu(Ⅰ) forms a distorted tetrahedral geometry by coordinating with the diphosphine ligand (bdppmapy) and chelating N-donor ligand (2,2'-bipy). Like 1, 2 was obtained by the reaction of CuI and bdppmapy with 2,2'-bipy in 1:1:1 molar ratio. In the asymmetric unit of 2, the bdppmapy and 2,2'-bipy ligands chelate central Cu(Ⅰ), respectively. The luminescent spectra show that the emission mechanism is metal-to-ligand charge transfer (MLCT). The application of terahertz time-domain spectroscopy also provides useful information for the research of complexes. |
Keywords: copper(Ⅰ) complex fluorescence terahertz spectra 2,2'-bipyridine N,N-bis((diphenylphosphino)methyl)-2-pyridinamine |
投稿时间:2018-10-26 修订日期:2018-11-23 |
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潘迅,匡晓楠,朱宁,任志刚,杨玉平,辛秀兰,李中峰,韩洪亮,金琼花.两个基于氮、膦混合配体的铜(Ⅰ)配合物的合成、光谱学性质和太赫兹时域光谱[J].无机化学学报,2019,35(2):361-368. |
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