含双(2-二苯基膦苯基)醚的Ag(Ⅰ)配合物的合成和表征（英文）

Syntheses and Characterization of Silver(Ⅰ) Complexes of Bis(2-(diphenylphosphino)phenyl)ether

合成了2个含有双膦配体的Ag(Ⅰ)配合物,分别是[Ag(DPEphos)(dppe)]2SO_4(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Ag_2S_2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。

Two novel silver（I） complexes [Ag（DeEphos）（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. CCDC： 1416572, 1; 1416573, 2.