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合成了7种2-苯基异喹啉及其衍生物Pt(Ⅱ)配合物.采用1H/13C NMR、TCA、X射线单晶衍射、CV、UV-Vis和PL等测试方法对配合物的结构和性能进行了表征.结果表明,这些Pt(Ⅱ)配合物均为平面四方配位构型.室温下,所有配合物在二氯甲烷(DCM)溶液中均发射红光,其中配合物(CzPPiQ) Pt( acac)和(CzPPiQ) Pt(dpm)为标准的红光发射,其发射源于金属到配体的电荷转移(MLCT)(407、444和463 nm)和配体中心(LC)(353、363和376 nm)的混合激发态.配合物在DCM溶液中的光量子产率为0.02~0.06,寿命为1.78~3.33μs.大位阻外围取代基的引入有效抑制了分子间相互作用.

参考文献

[1] Yersin H,Rausch A F,Czerwieniec R,et al.The Triplet State of Organo-transition Metal Compounds.Triplet Harvesting and Singlet Harvesting for Efcient OLEDs[J].Coord Chem Rev,2011,255:2622-2652.
[2] Baldo M A,O'Brien D F,You Y,et al.Highly Efficient Phosphorescent Emission from Organic Electroluminescent Devices[J].Nature,1998,395:151-154.
[3] GarethWilliams J A.Photochemistry and Photophysics of Coordination Compounds:Platinum[J].Top Curr Chem,2007,281:205-268.
[4] Ikai M,Ishikawa F,Aratani N,et al.Enhancement of External Quantum Efficiency of Red Phosphorescent Organic Lightemitting Devices with Facially Encumbered and Bulky PtⅡ Porphyrin Complexes[J].Adv Funct Mater,2006,16:515-519.
[5] Guo J,Ye K,Wu Y,et al.Red Electroluminescent Devices Based on a Porphyrin Metal Complex[J].Synth Metal,2003,137:1075-1076.
[6] Kwong R C,Sibley S,Dubovoy T,et al.Efficient,Saturated Red Organic Light Emitting Decices Based on Phosphorescent Platinum(Ⅱ) Porphyrins[J].Chem Mater,1999,11:3709-3713.
[7] LUO Kaijun,ZHANG Lifang,XU Lingling,et al.Synthesis and Properties of Meso-tetrakis (4-n-acyloxylphenyl) Porphyrin Platinum(Ⅱ) Complexes[J].Chinese J Appl Chem,2010,27(6):684-690(in Chinese).骆开均,张黎芳,徐玲玲,等.Meso-四(对-酰氧基苯基)卟啉铂配合物的合成和性能[J].应用化学,2010,27(6):684-690.
[8] LUO Kaijun,JIANG Shiping,ZHANG Lifang,et al.Saturated Red Polymer Electrophosphorescent Devices with Mesotetrakis (4-n-decanoyl-phenyl) Porphyrin Platinum (Ⅱ) Complex as Emitter[J].Chinese J Appl Chem,2011,28 (10):1155-1160(in Chinese).骆开均,蒋世平,张黎芳,等.掺杂meso-四(对葵酰氧基苯基)卟啉铂的饱和红色聚合物发光器件[J].应用化学,2011,28(10):1155-1160.
[9] Lu W,Mi B X,Chan M C W,et al.Light-emitting Tridentate Gyclometalated Platinum (Ⅱ) Complexes Containing σ-Alkynyl Auxiliaries:Tuning of Photo-and Eleetrophosphorescence[J].J Am Chem Soc,2004,126:4958-4971.
[10] Kui S C F,Sham I H T,Cheung C C C,et al.Platinum(Ⅱ) Complexes with π-conjugated,Naphthyl-substituted,Cyclometalated Ligands (RC^N^N):Structures and Photo-and Electroluminescence[J].Chem Eur J,2007,13:417-435.
[11] Yuen M Y,Kui S C F,Low K H,et al.Synthesis,Photophysical and Electrophosphorescent Properties of Fluorene-based Platinum(Ⅱ) Complexes[J].Chem Eur J,2010,16:14131-14141.
[12] Velusamy M,Chen C H,Wen Y S,et al.Cyclometalated Platinum(Ⅱ) Complexes of Lepidine-based Ligands as Highly Efficient Electrophosphors[J].Organometallics,2010,29:3912-3921.
[13] Ma B,Djurovich P I,Thompson M E.Excimer and Electron Transfer Quenching Studies of a Cyclometalated Platinum Complex[J].Coord Chem Rev,2005,249:1501-1510.
[14] Pettijohn C N,Jochnowitz E B,Chuong B,et al.Luminescent Excimers and Exciplexes of Pt(Ⅱ) Compounds[J].Coord Chem Rev,1998,171:85-92.
[15] Ding J,Gao J,Fu Q,et al.Highly Effcient Phosphorescent Bis-cyclometalated Iridium Complexes Based on Quinoline Ligands[J].Synth Metal,2005,155:539-548.
[16] Tsuboyama A,Iwawaki H,Furugori M,et al.Homoleptic Cyclometalated Iridium Complexes with Highly Efficient Red Phosphorescence and Application to Organic Light-emitting Diode[J].J Am Chem Soc,2003,125:12971-12979.
[17] Liang B,Jiang C,Chen Z,et al.New Iridium Complexas High-efficiency Red Phosphorescent Emitter in Polymer Lightemitting Devices[J].J Mater Chem,2006,16:1281-1286.
[18] Ding J,Lu J,Cheng Y,et al.Solution-processible Red Iridium Dendrimers Based on Oligocarbazole Host Dendrons:Synthesis,Properties,and Their Applications in Organic Light-emitting Diodes[J].Adv Funct Mater,2008,18:1-9.
[19] LI Hui.Design,Synthesis of Red,Green and Blue Phosphorescence Platinum (Ⅱ) Complexes by Inhibitting Intermolecular Interaction to Improve Luminous Properties[D].Changchun:Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,2011 (in Chinese). 李慧.红绿蓝磷光铂(Ⅱ)配合物的设计合成——通过抑制分子间相互作用提高发光性能研究[D].长春:中国科学院长春应用化学研究所,2011.
[20] Dehmlow H,Aebi J D,Jolidon S,et al.Synthesis and Structure-activity Studies of Novel Orally Active Non-terpenoic 2,3-Oxidosqualene Cyclase Inhibitors[J].J Med Chem,2003,46:3354-3370.
[21] Kurteva V B,Santo A G,Afonso C A M.Microwave Accelerated Facile Synthesis of Fused Polynuclear Hydrocarbons in Dry Media by Intramolecular Friedel-craft Alkylation[J].Org Biomol Chem,2004,(2):514-523.
[22] Cao H,Fujiwara Y,Haino T,et al.Maganetic Field Effect on Intramolecular Exciplex Fluorescence of Chain-linked Phenanthrene and N,N-dimethylaniline:Influence of Chain Length,Solvent,and Temperature[J].Bull Chem Soc Jpn,1996,69:2801-2813.
[23] Gravel D,Gauthier S,Brisse F,et al.Synthesis,Electronic Spectroscopy,and Evaluation of Photoconducting Oligomers with Pendant Bichromophores.Part 1.Influence of Donor-acceptor Orbital Overlap on Aggregate Emission and Photoactivity[J].Can J Chem,1990,68:908-925.
[24] Brisse F,Durocher G,Gauthier S,et al. Synthesis,Crystal Structure,and Absorption Spectroscopy of a Carbazoledinitrofluorene Bichromophore.Identity of Ground-state Molecular Interactions in the Single Crystal and Aggregates in Solution[J].J Am Chem Soc,1986,108:6579-6586.
[25] Brooks J,Babayan Y,Lamansky S,et al.Synthesis and Characterization of Phosphorescent Cyclometalated Platinum Complexes[J].Inorg Chem,2002,41:3055-3066.
[26] SUN Wei,ZHANG Qisheng,CHENG Yanxiang,et al.Phosphorescent Cuprous Complexes with 2-Pyridylmethyldiphenylphosphone:Synthesis,Photophysical Properties and Electroluminescence[J].Chinese J Appl Chem,2010,27(12):1403-1408 (in Chinese).孙伟,张其胜,程延祥,等.2-[(二苯基膦基)甲基]吡啶铜(Ⅰ)配合物的结构及发光性质[J].应用化学,2010,27(12):1403-1408.
[27] Caspar J V,Meyer T J.Application of the Energy Gap Law to Nonradiatlve,Excited-state Decay[J].J Phys Ghem,1983,87:952-957.
[28] Caspar J V,Kober E M,Sullivan B P,et al.Application of the Energy Gap Law to the Decay of Charge-transfer Excited states[J].J Am Chem Soc,1982,104:630-532.
[29] Cummings S D,Eisenberg R.Tuning the Excited-state Properties of Platinum(Ⅱ) Diimine Dithiolate Complexes[J].J Am Chem Soc,1996,118:1949-1960.
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