Structural characterization and luminescence properties of two 4d-4f Ln-Ag coordination compounds based on dinuclear lanthanide clusters
Yu Zhang , Lei Chen , Weiwei Ju , Yan Xu
Chemical Research in Chinese Universities ›› 2014, Vol. 30 ›› Issue (2) : 194 -199.
Structural characterization and luminescence properties of two 4d-4f Ln-Ag coordination compounds based on dinuclear lanthanide clusters
Two new compounds, [ErAg(INA)2(C2O4)]·2H2O(1)(HINA=nicotinic acid) and [Tb0.8Y0.2Ag2(IN)4·(H2O)5]·NO3·2H2O(2)(HIN=isonicotinic acid), based on the {2} building units, have been hydrothermally synthesized and characterized by single-crystal X-ray diffraction, infrared spectroscopy, thermal analysis and powder X-ray diffraction(PXRD). Single-crystal X-ray diffraction data reveal that both compounds crystallized in the low-symmetry triclinic space group P$\mathop {\rm{1}}\limits^{\rm{ - }} $. Compound 1 is a 3D heterometallic coordination framework based on {Er2} clusters, oxalate ligands and bridging [Ag(INA)] linkers, while compound 2 consists of 0D [Tb0.8·Y0.2Ag2(IN)4(H2O)5]2 subunits that give a 3D supramolecular structure through hydrogen bond interaction. The photoluminescent properties of both compounds(1 and 2) were studied.
4d–4f Ln-Ag coordination compound / Doping / Hydrothermal synthesis / Crystal structure
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