The Synthesize And Property Study Of Rare Earth Luminesence Complexes And Organic Electronic Material

Tb(N-PA)3(H2O)2and the ternary complexes Tb(N-PA)3Phen, Tb(N-PA)3Bipy and Tb(N-PA)3(TPPO)2of terbium N-Phenylanthranilic acid with the second ligand phen, Bipy and TPPO were synthesized. These complexes were characterized by infrared spectra, UV spectra and fluorescence spectra. The spectra property of the complexes was studied. It showed that these complexes all emitted ligand-sensitized green emission, and the intensity of the complexes followed in the decreasing sequence of Tb(N-PA)3(TPPO)2, Tb(N-PA)3Bipy, Tb(N-PA)3(H2O)2, Tb(N-PA)3Phen.The introduction of TPPO and Bipy enhanced the luminescence intensity of the complex while the introduction of Phen weakened it. The results indicated that the energy level and the structure of the second ligand both influenced the fluorescence properties of terbium (III) complexes.Two ternary complexes of Tb(III) were synthesized by introducing furoic acid (a-FURA) as the first ligand (L1), and1,10-phenanthroline (phen),2,2’-Dipyridyl (Bipy) as the second ligand (L2), respectively.The two complexes compared with Tb(N-PA)3Bipy and Tb(N-PA)3Phen synthesized were characterized by infrared spectra, UV spectra, XRD and fluorescence spectra. The effect of the ligands on the fluorescence properties of terbium complexes was studied. The results indicated that the impact between L1and L2should not be omitted. The substitution of L2-Phen with Bipy weakens the luminescence of the complex with N-HPA, which is reverse to the result of the complexes with FURA. The results suggest that the fluorescence properties of terbium (III) complexes are influenced by the coeffect of the first ligand and second ligand.And the matching of L1, L2and the rare earth ion is very important to the design of rare earth complex with good luminescence property.Recently, more and more research work has been focused on pentacene and substituted pentacene derivatives which are promising materials. This kind of materials can not be only used in organic thin-film transistors (OTFTs) but can also be used as organic luminescence materials. Synthesizing substituted pentacene derivatives is an important way to improve the poor solubility and stability of pentacene. In this study6,13-Pentacenequinone, pentance and6,13-diphenylpentacene(DPP) were synthesized, which were characterized by1H NMR, infrared spectra, XRD, UV-Visible spectra and fluorescence spectra. The results showed that6,13-Pentacenequinone and6,13-diphenylpentacene can be used as organic luminescence materials.The results showed that the solubility of6,13-diphenylpentacene was dramatically improved through phenyl substitution at the C-6and C-13positions of pentacene.