Solid complexes of rare earth nitrates with a new amide type podand ligand, 2,3-bis{[(2′-benzylaminoformyl)phenoxyl]methyl}quinoxaline (L), were prepared. These complexes were characterized by elemental analysis, con...Solid complexes of rare earth nitrates with a new amide type podand ligand, 2,3-bis{[(2′-benzylaminoformyl)phenoxyl]methyl}quinoxaline (L), were prepared. These complexes were characterized by elemental analysis, conductivity measurements and IR spectroscopy. Spectrographic analyses suggest that the complexes show a similar coordination mode. At the same time, the luminescence properties of the Eu(III) and Tb(III) complexes were also studied.展开更多
A new tripod polyaromatic acid ligand H3TCM（H3TCM={2,4,6-tris1,3,5-trimethylbenzene}） and its binuclear rare earth complex \·2DMF were prepared and the structure of complex was characterized by single crystal X...A new tripod polyaromatic acid ligand H3TCM（H3TCM={2,4,6-tris1,3,5-trimethylbenzene}） and its binuclear rare earth complex \·2DMF were prepared and the structure of complex was characterized by single crystal X-ray diffraction. The complex crystallizes in triclinic crystal system, space group P1 with a=1.123 3（2） nm, b=1.374 1（2） nm, （c=）1.731 8（2） nm, α=78.19（1）°, β=80.02（1）°, γ=80.08（1）°, V=2.550 8（7） nm3, Z=1, （R=）0.035 8, wR=0.080 3. Two TCM ligands that are both in cis, cis, cis-conformations adopt face-to-face orientation and are joined together by two La3+ to a novel binuclear cage-like structure. Two DMF molecules are encapsulated in this cage by coordination. In addition, the other two free DMF molecules are embedded in the channels from the packing of these units along a and b axises.展开更多
文摘Solid complexes of rare earth nitrates with a new amide type podand ligand, 2,3-bis{[(2′-benzylaminoformyl)phenoxyl]methyl}quinoxaline (L), were prepared. These complexes were characterized by elemental analysis, conductivity measurements and IR spectroscopy. Spectrographic analyses suggest that the complexes show a similar coordination mode. At the same time, the luminescence properties of the Eu(III) and Tb(III) complexes were also studied.
文摘A new tripod polyaromatic acid ligand H3TCM（H3TCM={2,4,6-tris1,3,5-trimethylbenzene}） and its binuclear rare earth complex \·2DMF were prepared and the structure of complex was characterized by single crystal X-ray diffraction. The complex crystallizes in triclinic crystal system, space group P1 with a=1.123 3（2） nm, b=1.374 1（2） nm, （c=）1.731 8（2） nm, α=78.19（1）°, β=80.02（1）°, γ=80.08（1）°, V=2.550 8（7） nm3, Z=1, （R=）0.035 8, wR=0.080 3. Two TCM ligands that are both in cis, cis, cis-conformations adopt face-to-face orientation and are joined together by two La3+ to a novel binuclear cage-like structure. Two DMF molecules are encapsulated in this cage by coordination. In addition, the other two free DMF molecules are embedded in the channels from the packing of these units along a and b axises.
