含有双膦配体的银(Ⅰ)配合物的合成、表征和荧光性质 |
Syntheses, Characterization and Luminescent Properties of Silver(Ⅰ) Complexes Based on Diphosphine Ligands |
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摘要: 在甲醇与二氯甲烷的混合溶液中分别合成了2个新的银(Ⅰ)配合物,[Ag(XANTphos)]BF4(1)和[Ag2Cl2(DPEphos)2]·2CH2Cl2(2)(XANTphos=4,5-双二苯基膦-9,9-二甲基氧杂蒽;DPEphos=双((2-二苯膦基)苯基)醚),通过红外光谱、X射线单晶衍射、核磁共振氢谱和荧光光谱进行分析和表征。1是由AgBF4,XANTphos和dmp(2,9-二甲基-1,10-菲咯啉)以1:1:1的计量比反应得到的单核化合物。中心原子Ag(Ⅰ)均通过双膦配体(XANTphos)的螯合作用形成环。而2是由AgCl和DPEphos以1:1的比例反应得到的双核化合物。在配合物2的非对称单元中,每个DPEphos配体与一个银离子螯合,且含有一个游离的二氯甲烷。荧光光谱表明配合物1、2的所有发射峰均源于配体中的π-π*跃迁。 |
关键词: 4,5-双二苯基膦-9,9-二甲基氧杂蒽 双((2-二苯膦基)苯基)醚 银 荧光 |
基金项目: 国家自然科学基金(No.21171119,81573822)、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.2172017,2172012)资助项目。 |
Abstract: Two novel silver(Ⅰ) complexes[Ag(XANTphos)]BF4 (1) and[Ag2Cl2(DPEphos)2]·2CH2Cl2 (2) (XANTphos=9,9-dimethyl-4,5-bis(diphenylphosphanyl)xanthene, DPEphos=bis(2-(diphenylphosphino)phenyl)ether) have been synthesized in mixed solvent CH3OH and CH2Cl2 and characterized by IR, single-crystal X-ray diffraction, 1H NMR spectroscopy and fluorescence spectra. Complex 1 is of a mononuclear complex,which was generated by the reaction of AgBF4 and XANTphos with dmp (neocuproine) in 1:1:1 molar ratio. The central ion Ag(Ⅰ) forms a ring by the chelating bisphosphine ligand (XANTphos). While complex 2 is of a binuclear complex, which was obtained by the reaction of AgCl with DPEphos in 1:1 molar ratio. In the asymmetric unit of complex 2, each DPEphos ligand chelates one silver(Ⅰ) cation with a free dichloromethane. The luminescent spectra show that all the emissions of the complexes 1 and 2 are assigned to ligand centered π-π* transition. |
Keywords: 9,9-dimethyl-4,5-bis(diphenylphosphanyl)xanthene bis(2-(diphenylphosphino)phenyl)ether silver(Ⅰ) fluorescence |
投稿时间:2017-08-01 修订日期:2017-11-10 |
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王宇,崔洋哲,刘敏,王梦秦,耿文筱,李中峰,金琼花.含有双膦配体的银(Ⅰ)配合物的合成、表征和荧光性质[J].无机化学学报,2018,34(2):381-386. |
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