| 基于衣康酸配体构筑的两个锌配合物的合成、结构和荧光性质 |
| Syntheses, Structures and Fluorescent Properties of Two Zinc Coordination Polymers Based on Itaconic Acid |
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| 摘要: 通过水热法合成了两种锌配位聚合物{[Zn(ic)(bip)]·2H2O}n(1)和[Zn(ic)(bpe)]n(2)(H2ic=衣康酸,bip=3,5-二(1-咪唑基)吡啶,bpe=1,2-二(4-吡啶基)乙烯),并通过X射线单晶衍射和元素分析对其结构进行了表征。配合物1和2均为含有一维金属-羧酸链的二维(4,4)格子层结构。此外,对它们的热重、粉末X射线衍射和固体荧光性能进行了考察。与配体bip相比,1的发射光谱发生了明显的蓝移(~78 nm),可能归因于配体到金属的电荷转移;2显示与游离的bpe配体相似的荧光性质,轻微的红移可能是因为与金属离子之间的配位作用导致的。 |
| 关键词: 衣康酸 配合物 水热合成 荧光性质 |
| 基金项目: 国家自然科学基金(No.21571092)、河南省高校科技创新人才(No.14HASTIT017)、河南省高校科技创新团队(No.14IRTSTHN008)和河南省科技计划项目(No.152102310348)资助。 |
| Abstract: Two zinc coordination polymers {[Zn(ic)(bip)]·2H2O}n(1) and [Zn(ic)(bpe)]n(2)(H2ic=itaconic acid, bip=3, 5-bis(1-imidazoly) pyridine, bpe=1, 2-bi(4-pyridyl) ethylene) were synthesized hydrothermally and character-ized structurally by single-crystal X-ray diffractions, elemental analysis.Both complexes 1 and 2 display 2D(4, 4) grid layers containing 1D metal-carboxylate chains.Thermogravimetric Analyses(TGA), powder X-ray diffractions(PXRD) and fluorescence properties for compounds 1 and 2 are also investigated.The solid state fluorescence spectra indicate that the emission spectrum of complex 1 shows obvious blue shift(~78 nm) compared to free bip coligand due to the ligand-to-metal charge-transfer(LMCT) effect.The compound 2 shows similar emission spectrum to the free bpe ligand, but the slight red-shift may be attributed to the complexation effect between the bpe molecule and Zn atoms.CCDC:1428340, 1; 1428341, 2. |
| Keywords: itaconic acid coordination polymers hydrothermal synthesis fluorescence property |
| 投稿时间：2015-10-21 修订日期：2016-01-18 |
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| 尹卫东,李桂连,李晓玲,辛凌云,马录芳,刘广臻.基于衣康酸配体构筑的两个锌配合物的合成、结构和荧光性质[J].无机化学学报,2016,32(4):662-668. |
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