The coordination polymer [Eu2(C10H9NO2)6(H2O)2]n with o-acetamidobenzoic acid and 1,10-phenanthroline has been synthesized by means of hydrothermal way and characterized.It crystallizes in the monoclinic space group P...The coordination polymer [Eu2(C10H9NO2)6(H2O)2]n with o-acetamidobenzoic acid and 1,10-phenanthroline has been synthesized by means of hydrothermal way and characterized.It crystallizes in the monoclinic space group P21/n,with a=1.074 19(10) nm,b=1.063 39(9) nm,c=2.496 7(2) nm,β=100.2610(10) °.The crystal structure shows that four bi-dentate bridging o-acetamidobenzoic acid groups and two europium(Ⅲ) ions form a binuclear cage structure in [Eu2(C10H9NO2)6(H2O)2]n,where the distance between Eu(1) and Eu(1A) is 0.428 9 nm.Two neighboring cage structures are linked together by two o-acetamidobenzoic acid and the complex molecule forms an one-dimensional chain structure.In the complex,the europium(Ⅲ) ion is coordinated with eight oxygen atoms from seven o-acetamidobenzoic acid molecules and one water molecule,forming a distorted square antiprism coordination geometry.The luminescence property of the complex was also studied.CCDC:674226.展开更多
By introducing 2-hydroxy-4-methoxy-benzophenone(UVA) and 1,10-phenanthroline(Phen) as the ligands, the ternary rare earth complex of Eu(UVA)3Phen is synthesized, and it is characterized by elemental analysis, mass spe...By introducing 2-hydroxy-4-methoxy-benzophenone(UVA) and 1,10-phenanthroline(Phen) as the ligands, the ternary rare earth complex of Eu(UVA)3Phen is synthesized, and it is characterized by elemental analysis, mass spectra(MS) and infrared(IR) and ultraviolet(UV) spectroscopy. Results show that the Eu(III) in complex emits strong red luminescence when it is excited by UV light, and it has higher sensitized luminescent efficiency and longer lifetime. The organic-inorganic thin film of complex Eu(UVA)3Phen doped with nano-Ti O2 is prepared, and the nano-Ti O2 is used in the luminescence layer to change the luminescence property of Eu(UVA)3Phen. It is found that there is an efficient energy transfer process between ligands and metal ions. Moreover, in an indium tin oxide(ITO)/poly(N-vinylcar-bazole)(PVK)/Eu(UVA)3Phen/Al device, Eu3+ can be excited by intramolecular ligand-to-metal energy transfer process. The main peak of emission at 613 nm is attributed to 5D0→7F2 transition of the Eu3+, and this process results in the enhanced red emission.展开更多
基金supported by the Jiangsu Province Science Foundation for Youths (Grant No.BK20150569)the National Natural Science Foundation of China (Grant No.201502088)+1 种基金the project of Scientific and Technological Support Program in Jiangsu province (Grant No.BE2014147-2)the Doctoral Fund of the Ministry of Education of China for financial support (Grant No.20120091130002)~~
文摘The coordination polymer [Eu2(C10H9NO2)6(H2O)2]n with o-acetamidobenzoic acid and 1,10-phenanthroline has been synthesized by means of hydrothermal way and characterized.It crystallizes in the monoclinic space group P21/n,with a=1.074 19(10) nm,b=1.063 39(9) nm,c=2.496 7(2) nm,β=100.2610(10) °.The crystal structure shows that four bi-dentate bridging o-acetamidobenzoic acid groups and two europium(Ⅲ) ions form a binuclear cage structure in [Eu2(C10H9NO2)6(H2O)2]n,where the distance between Eu(1) and Eu(1A) is 0.428 9 nm.Two neighboring cage structures are linked together by two o-acetamidobenzoic acid and the complex molecule forms an one-dimensional chain structure.In the complex,the europium(Ⅲ) ion is coordinated with eight oxygen atoms from seven o-acetamidobenzoic acid molecules and one water molecule,forming a distorted square antiprism coordination geometry.The luminescence property of the complex was also studied.CCDC:674226.
基金supported by the National Natural Science Foundation of China(No.21346006)the Department of Scientific Research Project in Heilongjiang Province(Nos.B201111 and B201015)+4 种基金the Scientific Research Project of Heilongjiang Province Education Department(Nos.12541783,12541830,12541821 and 12531693)the National College Students'Innovation and Entrepreneurship Training Major Project(No.201310222013)the Interdisciplinary Research Project of Jiamusi University(No.JC2014-005)the Graduate Scientific and Technological Innovation Major Project of Jiamusi University(No.LZR2014_034)the Jiamusi University Students'Science and Technology Innovation Project(No.XSYD 2004-020)
文摘By introducing 2-hydroxy-4-methoxy-benzophenone(UVA) and 1,10-phenanthroline(Phen) as the ligands, the ternary rare earth complex of Eu(UVA)3Phen is synthesized, and it is characterized by elemental analysis, mass spectra(MS) and infrared(IR) and ultraviolet(UV) spectroscopy. Results show that the Eu(III) in complex emits strong red luminescence when it is excited by UV light, and it has higher sensitized luminescent efficiency and longer lifetime. The organic-inorganic thin film of complex Eu(UVA)3Phen doped with nano-Ti O2 is prepared, and the nano-Ti O2 is used in the luminescence layer to change the luminescence property of Eu(UVA)3Phen. It is found that there is an efficient energy transfer process between ligands and metal ions. Moreover, in an indium tin oxide(ITO)/poly(N-vinylcar-bazole)(PVK)/Eu(UVA)3Phen/Al device, Eu3+ can be excited by intramolecular ligand-to-metal energy transfer process. The main peak of emission at 613 nm is attributed to 5D0→7F2 transition of the Eu3+, and this process results in the enhanced red emission.
