【摘 要】
：
Three lanthanide complexes[LnL3(H2O)]PMo12O40·CH3CN(Ln = Dy3+for 1,Ln = Ho3+for 2,Ln= Lu3+for 3,L = tetraethyl ethylenediphosphonate)have been synthesized,and
【机 构】
：
Department of Chemistry,Capital Normal University,Beijing 100048,China;State Key Laboratory of Struc
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Three lanthanide complexes[LnL3(H2O)]PMo12O40·CH3CN(Ln = Dy3+for 1,Ln = Ho3+for 2,Ln= Lu3+for 3,L = tetraethyl ethylenediphosphonate)have been synthesized,and characterized by single-crystal X-ray diffraction,elemental analysis,IR,PXRD,thermogravimetric analysis and terahertz time-domain spectroscopy(THz-TDS).Structural analysis results show that they have the same coordination mode and similar steric structures.Complexes 1～3 all crystallize in the monoclinic crystal system with space group P21/c.The centered Ln(Ⅲ)obtained a seven-coordinated mononuclear structure by linking with three tetraethyl ethylenediphosphonates and one water molecule,resulting in a three-dimensional supramolecular structure through hydrogen bonding.The three complexes have good adsorption properties for rhodamine B(RhB)in powder state.Moreover,terahertz time-domain spectroscopy(THz-TDS)was applied to represent the structures of complexes and ligands,which will provide useful information for establishing bridge between THz and complex structure in coordination chemistry.
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