含双(2-二苯基膦苯基)醚的Ag(Ⅰ)配合物的合成和表征 |
Syntheses and Characterization of Silver(Ⅰ) Complexes of Bis(2-(diphenylphosphino)phenyl)ether |
|
摘要: 合成了2个含有双膦配体的Ag(Ⅰ)配合物,分别是[Ag(DPEphos)(dppe)]2SO4(1)和[Ag(DPEphos)(SCN)]2·CH2Cl2(2)(DPEphos=双(2-二苯基膦苯基)醚,dppe=双(二苯基膦)乙烷),并通过红外光谱,核磁氢谱,元素分析,X射线单晶衍射及荧光光谱表征分析。通过热重分析了2个配合物的热稳定性。结构分析表明配合物1具有简单的单核结构,每个Ag和2个膦配体中的4个P原子螯合配位。配合物2具有双核结构,在配合物2中存在微弱的金属与金属间的作用。在Ag2S2环中,4个原子相互之间形成的内角之和为360°,形成的环[-Ag-S-Ag-S-]是一个平行四边形。荧光光谱显示配合物中的发射峰主要来源于双膦配体中的π-π*跃迁。热重分析结果表明,在340℃附近,2个配合物开始分解,具有良好的稳定性。 |
关键词: 双(2-二苯基膦苯基)醚 双(二苯基膦)乙烷 Ag(Ⅰ)配合物 荧光 热重分析 |
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 novel silver(Ⅰ) complexes[Ag(DPEphos)(dppe)]2SO4 (1) and[Ag(DPEphos)(SCN)]2·CH2Cl2 (2) (DPEphos=bis(2-(diphenylphosphino)phenyl) ether, dppe=bis(diphenylphosphino)ethane) have been synthesized and characterized by IR, 1H NMR spectroscopy, elemental analysis, single-crystal X-ray diffraction and fluorescence spectra. Structure analysis shows that complex 1 has simple mono-nuclear structures, and each silver atom is chelated by four phosphines. Complex 2 has a bi-nuclear cluster of Ag(Ⅰ), showing weak argentophilic interactions. The sum of the internal angles of the four-member ring[-Ag-S-Ag-S-] in the Ag2S2 core is 360°, demonstrating that the ring is a parallelogram. The luminescent spectra of 1~2 are studied, which show that the emission peaks are assigned to the π-π* transitions of the diphosphine ligands. Thermogravimetric analysis shows that two complexes begin to decompose at around 340℃, indicating their strong stability. |
Keywords: bis(2-(diphenylphosphino)phenyl) ether bis(diphenylphosphino) ethane silver(Ⅰ) complex fluorescence TGA |
投稿时间:2016-06-12 修订日期:2016-10-19 |
摘要点击次数: 1442 |
全文下载次数: 1426 |
林森,李跃,崔洋哲,张彦茹,王梦秦,李中峰,金琼花.含双(2-二苯基膦苯基)醚的Ag(Ⅰ)配合物的合成和表征[J].无机化学学报,2016,32(12):2165-2171. |
查看全文 查看/发表评论 下载PDF阅读器 |
Support information: |
|
|
|