| Recent progress for β-diketone derivatives were reviewed based on reading a great deal of related literature including Photoluminescence (PL) and Electroluminescence ( EL) of rear earth metal complexes and the photoelectric properties of multi-pyridine Ru(II) complexes. The europium complexes have an efficiency high PL, the monochrome red light and so on, making it be EL materials in application. Multi-pyridine Ru(II) complexes have been playing an important role in the research of photochemistry, photophysics, electronchemistry, charge transfer, etc. By molecular designing, we synthesized four novel β-diketone and a series of europium complexes and multi-pyridine Ru(II) complexes. Main research results in this dissertation were summarized as below.1. Two kinds of new bi-β-diketone of the PL & EL active organic ligand L1 (3,6-bis(4,4,4-trifluorobutane-1,3-dione)-9-butylcarbazole) , L2 (3,6-bis(4,4,4-trifluorobutane-1,3-dione)-9-hexylcarbazole ) and two kinds of new β-ditone L3 (3-(4,4,4- trifluorobutane-1,3-dione)-9-butylcarbazole), L4 (3-(4,4,4-trifluorobutane -1,3-dione)-9-hexylcarbazole) were synthesized and their synthetic conditions and the reaction mechanisms were also discussed.2. Single crystals for the three organic ligands L1, L2, L4 were obtained, in which L1, L4 belong to monoclinic system, P21/c space group, while L2 belong to orthorhombic system, Pbca space group. The ligands exhibit in enol-form resonance The carbazole and the diketone groups in L1 and L4 are almost in one plane while those in L2 exhibit slight twist. The size for the three kinds of the molecules reach to nano-scale.3. A series of multi-pyridine Ru(II) and europium complexes of the ligands were obtained, which were characterized by IR spectra, 1H NMR, MS, elemental analysis and X-ray diffiraction analysis. The structural characters for them were studied in detail.
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