| 基于吡啶基苯甲酸盐的两个银(Ⅰ)配合物的合成、晶体结构及荧光性质 |
| Syntheses, Crystal Structures and Fluorescence Properties of Two Silver(Ⅰ) Complexes Derived from Pyridylbenzoate Ligands |
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| 摘要: 合成了2个含有吡啶基苯甲酸盐的银(Ⅰ)配合物,即[Ag2(PPh3)2(4,4-pybz)2(H2O)2]n(1)和[Ag2(PPh3)2(4,3-pybz)2]·2CH3OH(2)(PPh3=三苯基膦,4, 4-pybz=4-吡啶-4-基-苯甲酸根, 4,3-pybz=4-吡啶-3-基-苯甲酸根),并通过红外光谱、元素分析和荧光光谱进行分析和表征,它们的结构由X射线单晶衍射测定。在不同的溶剂下,2个配合物由AgBF4、PPh3和不同的吡啶苯甲酸在氨水作用下,以1:1:1的比例反应而成。在配合物1中,所有的银原子由吡啶基苯甲酸桥连形成一维链状结构。在配合物2中,2个银原子通过2个4-吡啶-3-基-苯甲酸根配体形成双核结构。在荧光光谱中,在发射状态下所有的峰均来源于配体的π-π*跃迁。 |
| 关键词: 银 三苯基膦 4-吡啶-3-基-苯甲酸 4-吡啶-4-基-苯甲酸 |
| 基金项目: 国家自然科学基金(No.21171119,81573832)、863国家高技术研究发展计划(No.2012AA063201)、北京教育委员会基金(No.KM201210028020)、北京市优秀人才项目(No.2010D005016000002)和北京市自然科学基金(No.7122015)资助 |
| Abstract: Two silver(Ⅰ) complexes with pyridylbenzoate ligands, namely[Ag2(PPh3)2(4,4-pybz)2(H2O)2]n(1),[Ag2(PPh3)2(4,3-pybz)2]·2CH3OH(2) (PPh3=triphenylphosphine, 4,4-pybz=4-pyridin-4-yl-benzoate, 4,3-pybz=4-pyridin-3-yl-benzoate) were synthesized and characterized by IR, elemental analysis and fluorescence spectra, and their structures were elucidated by single-crystal X-ray diffraction. They have been made by reacting AgBF4, PPh3, different pyridylbenzoic acids in 1:1:1 molar ratio with ammonia water under different mixed solution conditions. In 1, the Ag atoms are bridged by pyridylbenzoate-containing ligand to form infinite chain structure. In 2, two Ag atoms are bridged by two 4-pyridin-3-yl-benzoate ligands to form binuclear complex. In fluorescence spectra, these emission peaks indicate that the origin of these emissions all involves emissive state derived from ligand-centered π-π* transition. |
| Keywords: silver triphenylphosphine 4-pyridin-3-yl-benzoic acid 4-pyridin-4-yl-benzoic acid |
| 投稿时间：2015-12-25 修订日期：2015-03-02 |
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| 马雁,毕凯伦,崔洋哲,刘敏,李中峰,金琼花.基于吡啶基苯甲酸盐的两个银(Ⅰ)配合物的合成、晶体结构及荧光性质[J].无机化学学报,2016,32(5):884-890. |
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