| 6-甲基-2,3,5-吡啶三甲酸构筑的两个银配合物的合成、结构与性质 |
| Syntheses, Structures and Properties of Two Silver(Ⅰ) Complexes Constructed from6-Methyl-2,3,5-pyridine-tricarboxylic Acid |
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| 摘要: 以6-甲基-2，3，5-吡啶三甲酸，菲咯啉为配体与AgNO3反应，合成出2种银配合物[Ag（H2mptc）（phen）]·2H2O（1）和[Ag（H2mptc）（phen）]（2）（H3mptc=6-甲基-2，3，5-吡啶三甲酸，phen=菲咯啉），并对其进行了红外光谱分析，元素分析，热重分析，X-射线粉末衍射分析，荧光光谱分析及X-射线单晶衍射结构分析。配合物1中的Ag（I）采取三配位的配位方式与配体H2mptc-及phen中的N原子结合，在2中，除了3个N原子配位外，邻位羧基的O原子也参与了配位。通过计算得知配合物2是热力学上更稳定的结构。固体荧光光谱表明，1和2在475nm左右有最大吸收，相对配体有75nm左右的红移，均可归属于配体到金属间的电荷转移。 |
| 关键词: 6-甲基-2,3,5-吡啶三甲酸 银配合物 菲咯啉 荧光性质 |
| 基金项目: 国家自然科学基金（No.21001078，21271137）资助项目。 |
| Abstract: Two complexes constructed from 6-methyl-2,3,5-pyridine-tricarboxylic acid, 1,10-phenanthroline and AgNO3, namely [Ag(H2mptc)(phen)]·2H2O (1), [Ag(H2mptc)(phen)] (2) (H3mptc=6-methyl-2,3,5-pyridine-tricarboxylic acid, phen=1,10-phenanthroline), have been synthesized by the self-assembly reaction and characterized by X-ray diffraction single crystal structure analysis, elemental analysis, IR, PXRD, fluorescence and thermal analysis. In1, Ag(Ⅰ) coordinated to three Natoms from H2mptc- and phen. In2, Ag(Ⅰ) is four-coordinated by three Natoms from H2mptc- and phen, and one Oatom from the H2mptc-. Complex 2 is more stable on the thermodynamic consideration than 1. The solid-state photoluminescence spectra show that the fluorescent emissions of 1 and 2 are at about 475 nm, which can be attributed to the ligand-to-metal charge transition. CCDC: 970053, 1; 970052, 1. |
| Keywords: 6-methyl-2,3,5-pyridine-tricarboxylic acid Silver(Ⅰ) complex 1,10-phenanthroline Fluorescent property |
| 投稿时间：2014-04-08 修订日期：2014-05-21 |
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| 高洪苓,张琴琴,李方方,伊勇玲,王小佳,崔建中.6-甲基-2,3,5-吡啶三甲酸构筑的两个银配合物的合成、结构与性质[J].无机化学学报,2014,30(9):2075-2080. |
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