Several organic electroluminescent (EL) com-pounds,2,2′-(1,4-phenylenedivinylene)bis-3,3-dimethyl-in- dolenine (1),2,2′-(1,4-phenylenedivinylene)bis-benzoxazole (2), 2,2′-(1,4-phenylenedivinylene)bis-benzothiazole ...Several organic electroluminescent (EL) com-pounds,2,2′-(1,4-phenylenedivinylene)bis-3,3-dimethyl-in- dolenine (1),2,2′-(1,4-phenylenedivinylene)bis-benzoxazole (2), 2,2′-(1,4-phenylenedivinylene)bis-benzothiazole (3), 4,4′-(1,4-phenylenedivinylene)bis-quinoline (4),2,2′-(1,4-phenyle-nedivinylene)bis-quinoline (5),2,2′-(1,4-phenylenedivinyle-ne)bis-1,3,3-trimethyl-indoleninedichloride(6),2,2′-(1,4- phenylene-divinylene)bis-1-hydro-3,3-dimethylindolenine dichloride (7),2,2′-(1,4-phenylenedivinylene)bis-8-acetoxy- quinoline (8), 2,2′-(1,4-phenylenedivinylene)bis-8-hydroxyq- uinoline (9) and metal complexes of 9, Al(PHQ) (10) and Zn(PHQ) (11), have been synthesized and characterized. The crystal structure of 6 was determined. Light emitting proper-ties of the prepared compounds have been investigated. 1 produces an orange-yellow emission (lmax = 575 nm). The cation, 6, gives a red emission (lmax = 607 nm), which is shifted 32 nm to the red compared to 1. 8 produces a yellow emission (lmax = 567 nm). The metal complex 10 gives a red emission (lmax = 610 nm), which is a red shift of 43 nm com-pared to 8. The change in structure in the prepared com-pound caused a change in the electron distribution in the compounds, which induces a large wavelength shift of the emitted-light. Thermal analysis showed that the decomposi-tion temperatures of the metal complexes (10, 11) were higher than those for the smaller organic molecular com-pounds (1-9). Therefore, metal complexes (10, 11) can be used as EL materials over a larger temperature range.展开更多
文摘Several organic electroluminescent (EL) com-pounds,2,2′-(1,4-phenylenedivinylene)bis-3,3-dimethyl-in- dolenine (1),2,2′-(1,4-phenylenedivinylene)bis-benzoxazole (2), 2,2′-(1,4-phenylenedivinylene)bis-benzothiazole (3), 4,4′-(1,4-phenylenedivinylene)bis-quinoline (4),2,2′-(1,4-phenyle-nedivinylene)bis-quinoline (5),2,2′-(1,4-phenylenedivinyle-ne)bis-1,3,3-trimethyl-indoleninedichloride(6),2,2′-(1,4- phenylene-divinylene)bis-1-hydro-3,3-dimethylindolenine dichloride (7),2,2′-(1,4-phenylenedivinylene)bis-8-acetoxy- quinoline (8), 2,2′-(1,4-phenylenedivinylene)bis-8-hydroxyq- uinoline (9) and metal complexes of 9, Al(PHQ) (10) and Zn(PHQ) (11), have been synthesized and characterized. The crystal structure of 6 was determined. Light emitting proper-ties of the prepared compounds have been investigated. 1 produces an orange-yellow emission (lmax = 575 nm). The cation, 6, gives a red emission (lmax = 607 nm), which is shifted 32 nm to the red compared to 1. 8 produces a yellow emission (lmax = 567 nm). The metal complex 10 gives a red emission (lmax = 610 nm), which is a red shift of 43 nm com-pared to 8. The change in structure in the prepared com-pound caused a change in the electron distribution in the compounds, which induces a large wavelength shift of the emitted-light. Thermal analysis showed that the decomposi-tion temperatures of the metal complexes (10, 11) were higher than those for the smaller organic molecular com-pounds (1-9). Therefore, metal complexes (10, 11) can be used as EL materials over a larger temperature range.
