欢迎登录材料期刊网

材料期刊网

高级检索

Two novel luminescent Eu(Ⅲ) complexes with the formulas (NIP)Eu(DBM)3 1 and (ENIP)Eu(DBM)3 2 (NIP=2-(naphthalen-1-yl)-1H-imidazo [4,5-f] [1,10] phenanthroline,ENIP=1-ethy1-2-(naphthalen-1-yl)-1H-imidazo [4,5-)] [1,10] phenanthroline,DBM=dibenzoylmethanato) were successfully synthesized and characterized by IR and elemental analysis.The UV-vis absorption spectra and photoluminescence properties of the complexes were investigated,and the irradiation at the absorption band between 300-400 nm of europium complexes either in solution or in the solid state led to the emission of a sharp red band at ~610 nm,a characteristic Eu3+ emission due to the transition of5D0→7F2.Furthermore,the weak emission bands around 587 and 595 nm attributed to 5D0→7F0 and 5D0→7F1 transition were also displayed in the emission spectra.These results demonstrated that the Eu(Ⅲ) ion was sensitized efficiently by the ligand and displayed photoluminescence with high intensity,narrow half-peak width,and monochromic light.The excited-state lifetimes of 1 and 2 were in the microsecond time scale,but the photoluminescence quantum yield of 2 (0.03) was two times higher than that of 1 (0.01) which should be attributed to the effect of the ethyl substituting in ENIP.

参考文献

[1] Parker D;Dickins R S;Puschmann H;Crossland C Howard J A K .Being excited by lanthanide coordination complexes:aqua species,chirality,excited-state chemistry,and exchange dynamics[J].Chemical Reviews,2002,102:1977.
[2] Parker D .Excitement in fblock:structure,dynamics and function of nine-coordinate chiral lanthanide complexes in aqueous media[J].Chemical Society Reviews,2004,33:156.
[3] Sabbatini N;Guardigli M;Lehn J .Luminescent lanthanide complexes as photochemical supramolecular devices[J].Coordination Chemistry Reviews,1993,123:201.
[4] YU Hong,GAO Guimei,KONG Li,LI Guanghuan,GAN Shucai,HONG Guangyan.Synthesis and luminescence properties of a novel red-emitting phosphor SrCaSiO4:Eu3+ for ultraviolet white light-emitting diodes[J].稀土学报(英文版),2011(05):431-435.
[5] Gao J H;Song L M;Liu X M;Guo T Lü T Hu X Y Zhang D K .Enhanced photoluminescence properties of (Y,Bi)BO3:RE3+ (RE=Eu,Tb) phosphors synthesized at low temperature[J].Journal of Rare Earths,2011,29:335.
[6] Pasatoiu, TD;Madalan, AM;Kumke, MU;Tiseanu, C;Andruh, M .Temperature Switch of LMCT Role: From Quenching to Sensitization of Europium Emission in a Zn-II-Eu-III Binuclear Complex[J].Inorganic Chemistry: A Research Journal that Includes Bioinorganic, Catalytic, Organometallic, Solid-State, and Synthetic Chemistry and Reaction Dynamics,2010(5):2310-2315.
[7] Giardiello M;Lowe M P .Luminescence study of Eu(Ⅲ) analogues of esterase-activated magetic resonance contrast agents[J].Inorganic Chemistry,2010,48:8515.
[8] Zhang J;Fu Y;Lakowicz J R .Luminescent silica core/silver shell encapsulated with Eu(Ⅲ) complex[J].Journal of Physical Chemistry C,2009,113:19404.
[9] Gulgas CG;Reineke TM .Macrocyclic Eu3+ chelates show selective luminescence responses to anions[J].Inorganic Chemistry: A Research Journal that Includes Bioinorganic, Catalytic, Organometallic, Solid-State, and Synthetic Chemistry and Reaction Dynamics,2008(5):1548-1559.
[10] Eliseeva S V;Bünzli J-C G .Lanthanide luminescence for functional materials and bio-sciences[J].Chemical Society Reviews,2010,39:189.
[11] Singh A K;Singh S K;Mishra H;Prakash R Rai S B .Structural,thermal,and fluorescence properties of Eu(DBM)3Phenxcomplex doped in PMMA[J].Journal of Physical Chemistry B,2010,114:13042.
[12] Kido J;Nagai K;Okamoto Y .Organic electroluminescent devices using lanthanide complexes[J].Journal of Alloys and Compounds,1993,192:30.
[13] Kido J;Hayase H;Hongawa K;Nagai K Okuyama K .Bright red light-emitting organic electroluminescent devices having a europium complex as an emitter[J].Applied Physics Letters,1994,65:2124.
[14] Edwards A.;Sokolik I.;Chu TY.;Okamoto Y.;Dorsinville R.;Claude C. .PHOTOLUMINESCENCE AND ELECTROLUMINESCENCE OF NEW LANTHANIDE-(METHOXYBENZOYL)BENZOATE COMPLEXES[J].Journal of Applied Physics,1997(4):1841-1846.
[15] Okada K.;Wang YF.;Chen TM.;Nakaya T.;Uekawa M. .Red organic electroluminescent devices based on novel furan-contained Eu complex as an emitting layer[J].Chemistry Letters,1998(8):801-802.
[16] Huang L.;Huang CH.;Li FY.;Huang YY.;Wang KZ. .Bright red electroluminescent devices using novel second-ligand-contained europium complexes as emitting layers[J].Journal of Materials Chemistry: An Interdisciplinary Journal dealing with Synthesis, Structures, Properties and Applications of Materials, Particulary Those Associated with Advanced Technology,2001(3):790-793.
[17] Jiang C W;Chao H;Li R H;Li H Ji L N .Syntheses,characterization and third-order nonlinear optical properties of ruthenium(Ⅱ) complexes containing 2-phenylimidazo-[4,5-f][1,10]phenanthroline and extended diimine ligands[J].Polyhedron,2001,20:2187.
[18] Shi L F;Li B .A series of Cu1 complexes containing 1,10-phenanthroline derivative ligands:synthesis,characterization,photophysical and oxygen-sensing properties[J].European Journal of Inorganic Chemistry,2009,15:2294.
[19] Villegas JM.;Stoyanov SR.;Rillema DP. .Synthesis and photochemistry of Ru(II) complexes containing phenanthroline-based ligands with fused pyrrole rings[J].Inorganic Chemistry: A Research Journal that Includes Bioinorganic, Catalytic, Organometallic, Solid-State, and Synthetic Chemistry and Reaction Dynamics,2002(25):6688-6694.
[20] Ye K Q;Wang J;Sun H;Liu Y Mu Z C Li F Jiang S M Zhang J Y Zhang H X Wang Y Che C M .Supramolecular structures and assembly and luminescent properties of quinacridone derivatives[J].Journal of Physical Chemistry B,2005,109:8008.
[21] Liu Z;Wen FS;Li WL .Synthesis and electroluminescence properties of europium(III) complexes with new second ligands[J].Thin Solid Films: An International Journal on the Science and Technology of Thin and Thick Films,2005(1/2):265-270.
[22] Kido J;Okamoto Y .Organo lanthanide metal complexes for electroluminescent materials[J].Chemical Reviews,2002,102:2357.
[23] Zong R F;Zhang G;Eliseeva S V;Bünzli J-C G Thummel R P .Eu(Ⅲ) complexes of tetradentate ligands related to 2,9-di (pyrid-2'-yl)-1,10-phenanthroline and 2,2'-bi-1,10-phenanthroline[J].Inorganic Chemistry,2010,49:4657.
上一张 下一张
上一张 下一张
计量
  • 下载量()
  • 访问量()
文章评分
  • 您的评分:
  • 1
    0%
  • 2
    0%
  • 3
    0%
  • 4
    0%
  • 5
    0%