The neodymium trifluoroacetate complexes were synthesized and characterized by single-crystal X-ray diffraction for [Nd（CF3COO）3·Bpy·（H2O）3]Bpy（1）,elemental and TG analysis,FT-IR spectra,and PL spectra...The neodymium trifluoroacetate complexes were synthesized and characterized by single-crystal X-ray diffraction for [Nd（CF3COO）3·Bpy·（H2O）3]Bpy（1）,elemental and TG analysis,FT-IR spectra,and PL spectra for Nd（CF3COO）3·Bpy（2）（Bpy：2,2＇-bipyri-dine）.The most interesting feature of the crystal structure for 1 is that it comprises a coordinated 2,2＇-bipyridine molecule and an out-sphere 2,2＇-bipyridine molecule.At the same time,the C-O distances appeared average which indicates the three atoms of carboxylato forming elec-tron-conjugate system.Hydrogen bond and π-π-stacking link the binuclear to two-dimensional sheet.The optical spectra for 2 exhibited that the complex possessed typical Nd（III） ion absorption and photoluminescence emission.The emission cross-section of 4F3/2→4I11/2 fluores-cence transition（3.63×10-20 cm2） was comparable with some laser glasses,which indicated good radiative properties of this neodymium trifluoroacetate complex in liquid matrix.The thermal analysis indicated that it was quite stable to heat.展开更多
基金supported by the National Natural Science Foundation of China(60977023,10876009)CAS Special Grant for Postgraduate Research,Innovation and Practice
文摘The neodymium trifluoroacetate complexes were synthesized and characterized by single-crystal X-ray diffraction for [Nd（CF3COO）3·Bpy·（H2O）3]Bpy（1）,elemental and TG analysis,FT-IR spectra,and PL spectra for Nd（CF3COO）3·Bpy（2）（Bpy：2,2＇-bipyri-dine）.The most interesting feature of the crystal structure for 1 is that it comprises a coordinated 2,2＇-bipyridine molecule and an out-sphere 2,2＇-bipyridine molecule.At the same time,the C-O distances appeared average which indicates the three atoms of carboxylato forming elec-tron-conjugate system.Hydrogen bond and π-π-stacking link the binuclear to two-dimensional sheet.The optical spectra for 2 exhibited that the complex possessed typical Nd（III） ion absorption and photoluminescence emission.The emission cross-section of 4F3/2→4I11/2 fluores-cence transition（3.63×10-20 cm2） was comparable with some laser glasses,which indicated good radiative properties of this neodymium trifluoroacetate complex in liquid matrix.The thermal analysis indicated that it was quite stable to heat.
