摘要
Two new piperazine templated lanthanide sulfates （C4N2HI2）1.5[Ln（SO4）3（H20）]H20[Ln=Gd（1）, Tb（2）] have been synthesized solvothermally and structurally characterized by single crystal X-ray diffraction（XRD）, infrared（IR） spectroscopy, thermal analysis, fluorescent spectra and inductively coupled plasma（ICP）. Single crystal X-ray diffraction reveals that both compounds 1 and 2 crystallized in the monoclinic crystal system, with space group P2t/c and cell dimensions： a=0.64468（19） nm, b=2.9979（9） nm, c=0.9818（3） nm, fl=101.271（4）, V=l.8608（10） nm3, Z=4 for compound 1; a=0.64259（19） nm, b=3.0010（9） rim, c=0.9812（3） nm, fl=101.229（4）, V=1.8560（10） nm3, Z=4 for compound 2. Compounds 1 and 2 are isomorphous and have similar 2D corrugated inorganic frameworks fabricated via the connection of single chains and $204 groups, while fully protonated piperazine cations and water molecules are located between the inorganic layers. The solid state luminescent properties of compound 2 were investigated and it displayed a typical luminescent property of Tb3＋ with excitation wavelength at 371 nm.
Two new piperazine templated lanthanide sulfates （C4N2HI2）1.5[Ln（SO4）3（H20）]H20[Ln=Gd（1）, Tb（2）] have been synthesized solvothermally and structurally characterized by single crystal X-ray diffraction（XRD）, infrared（IR） spectroscopy, thermal analysis, fluorescent spectra and inductively coupled plasma（ICP）. Single crystal X-ray diffraction reveals that both compounds 1 and 2 crystallized in the monoclinic crystal system, with space group P2t/c and cell dimensions： a=0.64468（19） nm, b=2.9979（9） nm, c=0.9818（3） nm, fl=101.271（4）, V=l.8608（10） nm3, Z=4 for compound 1; a=0.64259（19） nm, b=3.0010（9） rim, c=0.9812（3） nm, fl=101.229（4）, V=1.8560（10） nm3, Z=4 for compound 2. Compounds 1 and 2 are isomorphous and have similar 2D corrugated inorganic frameworks fabricated via the connection of single chains and $204 groups, while fully protonated piperazine cations and water molecules are located between the inorganic layers. The solid state luminescent properties of compound 2 were investigated and it displayed a typical luminescent property of Tb3＋ with excitation wavelength at 371 nm.
基金
Supported by the Natural Science Foundation of Jiangsu Province of China（No.BK2012823）.
