| 两个含有混磷配体的发光银(Ⅰ)配合物的合成和表征 |
| Syntheses and Characterization of Two Luminescent Silver(Ⅰ) Complexes Based on Mixed Phosphine Ligands |
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| 摘要: 合成了两个新的银(Ⅰ)配合物,[Ag2Br2(DPEphos)2(dppe)](1)和[Ag(DPEphos)(dppe)]NO3(2)(DPEphos=双[(2-二苯膦基)苯基]醚;dppe=1,2-双(二苯膦)乙烷),通过红外光谱、X-射线单晶衍射、核磁共振氢谱、磷谱和荧光光谱进行分析和表征。1是由AgBr, DPEphos和dppe以2:2:1的比例混合反应得到的双核化合物,dppe通过2个P原子桥连2个Ag原子,而2是由AgNO3,DPEphos和dppe以1:1:1的比例混合反应得到的简单的单核化合物,Ag原子与DPEphos和dppe配体螯合。在配合物2的膦谱中,存在4个分裂峰(双峰或者三重峰)。荧光光谱表明所有的发射峰均源于配体中的π-π*跃迁。 |
| 关键词: 双[(2-二苯膦基)苯基]醚 1,2-双(二苯膦)乙烷 银 荧光 |
| 基金项目: 国家自然科学基金(No.21171119),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),北京市自然科学基金(No.7122015)资助项目。 |
| Abstract: Two novel silver(Ⅰ) complexes [Ag2Br2(DPEphos)2(dppe)](1) and [Ag(DPEphos)(dppe)]NO3(2) (DPEphos=bis[2-(diphenylphosphino)phenyl]ether, dppe=bis(diphenylphosphino)ethane) have been synthesized and characterized by IR, single-crystal X-ray diffraction, 1H NMR, 31P NMR spectroscopy and fluorescence spectra. 1 is comprised of AgBr, DPEphos and dppe in 2:2:1 molar ratio generating a binuclear complex. The dppe ligand bridges two Ag atoms through two P atoms in 1. While, 2 is obtained by the reactions of AgNO3, DPEphos and dppe in 1:1:1 molar ratio generating a sample mono-nuclear complex. The Ag(Ⅰ) atom is chelated by DPEphos and dppe ligand. In the 31P NMR spectra of 2, there are four splitting signals (doublets or triplets). The luminescent spectra show that the origin of these emissions all involves emissive state derived from ligand centered π-π* transition. CCDC: 1043375, 1; 1043376, 2. |
| Keywords: bis[2-(diphenylphosphino)phenyl]ether bis(diphenylphosphino)ethane silver(Ⅰ) fluorescence |
| 投稿时间：2015-06-28 修订日期：2015-07-12 |
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| 张彦茹,王梦秦,崔洋哲,刘敏,李中峰,金琼花.两个含有混磷配体的发光银(Ⅰ)配合物的合成和表征[J].无机化学学报,2015,31(10):2089-2094. |
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