| 基于双吡啶酰胺配体的一维汞(Ⅱ)配位聚合物的合成、晶体结构、荧光及蒸气吸附性质 |
| Synthesis, Crystal Structures, Luminescence, and Vapor Adsorption Properties of 1D Mercury(Ⅱ) Coordination Polymers Based on Two Dipyridylamide Ligands |
| 作者 | 单位 | E-mail | | 黄超 | 贵州大学, 贵州省大环化学及超分子化学重点实验室, 贵阳 550025 | | | 王开腾 | 贵州大学, 贵州省大环化学及超分子化学重点实验室, 贵阳 550025 | | | 陈冬梅 | 贵州大学, 贵州省大环化学及超分子化学重点实验室, 贵阳 550025 | | | 朱必学 | 贵州大学, 贵州省大环化学及超分子化学重点实验室, 贵阳 550025 | | | 卢季红 | 贵州大学, 贵州省大环化学及超分子化学重点实验室, 贵阳 550025 | lujhgzu@163.com |
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| 摘要: 分别将2个双吡啶酰胺配体（L1和L2）与碘化汞进行配位反应，设计并合成了2个配位聚合物{[Hg2（L1）（μ2-I）2I2]·2DMF·H2O}n（1）和{[Hg（L2）I2]·H2O}n （2）。X射线单晶分析表明，这2种配合物均呈现为一维“之”字形链状结构，但通过调整配体中的3-和4-吡啶氮原子位点表现出不同的配位模式。2个配合物中Hg（Ⅱ）中心均为四配位的扭曲四面体构型。在配合物1中，Hg（Ⅱ）中心与1个3-吡啶氮原子和3个碘离子配位，配体L1与碘化汞的物质的量之比为1∶2。在配合物2中，Hg（Ⅱ）中心与2个4-吡啶氮原子和2个碘离子配位，配体L2与碘化汞的物质的量之比为1∶1。此外，考察了2个配合物的热稳定性、固态荧光及蒸气吸附性质。 |
| 关键词: 配位聚合物 双吡啶酰胺 晶体结构 一维 蒸气吸附 |
| 基金项目: 贵州省科技计划项目（黔科合基础-ZK[2022]037）和国家自然科学基金（No.21961007）资助 |
| Abstract: Two coordination polymers, {[Hg2(L1) (μ2-I)2I2] ·2DMF·H2O}n (1) and {[Hg(L2)I2] ·H2O}n (2), have been designed and synthesized from two dipyridylamide ligands (L1 and L2) with mercury(Ⅱ) iodide, respectively. X-ray crystallographic analyses show that both the two complexes exist as 1D zig-zag chain structures but exhibit different configurations by slightly adjusted 3-and 4-pyridyl nitrogen atoms from the ligands. Each Hg(Ⅱ) center of the two complexes is four-coordinated with distorted tetrahedral geometry. In complex 1, the Hg(Ⅱ) center is coordinated by one 3-pyridyl nitrogen atom and three iodide anions in a 1:2 molar ratio of L1 and mercury iodide. In complex 2, the Hg(Ⅱ) center is coordinated by two 4-pyridyl nitrogen atoms and two iodide anions in a 1:1 molar ratio of L2 and mercury iodide. In addition, the thermal stabilities, luminescence properties, together with vapor adsorption properties of the two complexes were investigated. |
| Keywords: coordination polymer dipyridylamide crystal structure one-dimensional vapor adsorption |
| 投稿时间：2022-04-10 修订日期：2022-08-30 |
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| 黄超,王开腾,陈冬梅,朱必学,卢季红.基于双吡啶酰胺配体的一维汞(Ⅱ)配位聚合物的合成、晶体结构、荧光及蒸气吸附性质[J].无机化学学报,2022,38(11):2291-2298. |
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| Support information: 相关附件： 220172_Supporting_Information-revised.doc |
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