| 基于香豆素N2O2配体构筑的单核铜(Ⅱ)和三核钴(Ⅱ)配合物:合成、结构及荧光性质 |
| Mononuclear Cu(Ⅱ) and Trinuclear Co(Ⅱ) Complexes Based on Coumarin-Containing N2O2 Ligands: Syntheses, Structures and Fluorescence Properties |
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| 摘要: 合成了2个通过不同的Salamo型香豆素类配体H2L1和H2L2构筑的配合物，[Cu（L1）（H2O）]（1）和[Co3（L2）2（μ2-OAc）2（MeOH）2]·3CH2Cl2（2），并通过元素分析、红外光谱、紫外-可见吸收光谱、荧光光谱以及X射线单晶衍射法对其进行了表征。配合物1中配位的铜（Ⅱ）离子的空间构型是扭曲的四方锥，并且配合物1通过分子间的氢键作用形成了二聚体。配合物2中所有配位的钴（Ⅱ）离子的配位数均为六，并且3个钴（Ⅱ）离子的配位空间构型均为扭曲的八面体。同时，配合物2通过分子间的氢键作用形成了一维的超分子链状结构。此外，还分别对配体H2L1和H2L2的荧光性质进行了研究，并且通过荧光滴定实验进一步验证了配合物1和2的晶体结构。 |
| 关键词: 四齿N2O2配体 配合物 合成 晶体结构 荧光性质 |
| 基金项目: 国家自然科学基金（No.21761018）资助项目。 |
| Abstract: Two newly designed complexes,[Cu(L1)(H2O)] (1) and [Co3(L2)2(μ2-OAc)2(MeOH)2]·3CH2Cl2 (2) derived from tetradentate Salamo-type chelating ligands (H2L1 and H2L2) have been synthesized and characterized by elemental analyses, IR and UV-Vis spectra, fluorescence spectra and X-ray crystallography. Complex 1 shows a slightly distorted tetragonal pyramid, forming a dimer supramolecular structure by intermolecular hydrogen bond interactions. While all of the Co(Ⅱ) ions in complex 2 are hexa-coordinated with slightly distorted octahedral coordination geometries. The supramolecular structure of complex 2 is formed via intermolecular hydrogen bond interactions leading to a self-assembly infinite 1D chain structure. The fluorescent properties of H2L1 and H2L2 have been discussed and the crystal structures of complexes 1 and 2 were confirmed by fluorescence titration experiments. |
| Keywords: tetradentate N2O2 ligand complex synthesis crystal structure fluorescence property |
| 投稿时间：2018-01-22 修订日期：2018-03-14 |
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| 高垒,李肖妍,刘畅,张阳,董文魁.基于香豆素N2O2配体构筑的单核铜(Ⅱ)和三核钴(Ⅱ)配合物:合成、结构及荧光性质[J].无机化学学报,2018,34(7):1381-1391. |
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