- Organometallic Complex, and Light-Emitting Material, Light-Emitting Element, Light-Emitting Device and Electronic Device
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The present invention provides a novel organometallic complex which emits green phosphorescence so as to enrich variations of phosphorescent materials for green color which is one of three primary colors. An organometallic complex comprising a structure represented by a general formula (G1) is provided. In the formula, R1 represents an alkyl group having 1 to 4 carbon atoms, and R2 and R3 individually represent hydrogen or an alkyl group having 1 to 4 carbon atoms. In addition, R4 to R7 individually represent an electron-withdrawing group, hydrogen or an alkyl group having 1 to 4 carbon atoms. Note that at least one of R4 to R7 represents an electron-withdrawing group. In addition, M is a central metal and represents either an element belonging to Group 9 in the periodic table or an element belonging to Group 10 in the periodic table.
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- Reactions of Halogenomethanes in the Vapor Phase. Part 4. The Reactions of Imidazoles with Chloroform at 550 deg C, and a Comparison with their Liquid-phase Reactions with Trichloroacetate Ion or Hexachloroacetone and Base
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1-Unsubstituted imidazoles and chloroform at 550 deg C in a flow system give mainly 5-chloropyrimidines, together with 4-chloropyrimidines and chloropyrazines.The effects of methyl substituents on the ratio of products is considered.The liquid-phase reactions of 2-methyl- and 2,4,5-trimethyl-imidazole under conditions in which dichlorocarbene is said to be formed in basic or neutral conditions were studied, and compared with the gas-phase reactions with chloroform.
- Busby, Reginald E.,Khan, Mohammad A.,Khan, Mohammad R.,Parrick, John,Shaw, C. J. Granville,Iqbal, Mohammad
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p. 1427 - 1430
(2007/10/02)
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- Reactions of Halogenomethanes in the Vapour Phase. Part 5. The Reactions of Imidazolines, Anils, and 1-Methylimidazole with Chloroform at 550 deg C, and a Comparison with their Liquid-Phase Reactions with Trichloroacetate Ion or Hexachloroacetone and Base
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The vapor-phase reactions of imidazolines and anils with chloroform at 550 deg C are compared with their liquid-phase reactions in the presence of hexachloroacetone and base or upon thermolysis with trichloroacetate ion.In the vapour-phase reactions imidazolines, unlike imidazoles, gave non-chlorinated pyrimidines, and 1-methyl-imidazole gave 2-cyanopyrrole and the four 3-chlorocyanopyridines.
- Busby, Reginald E.,Khan, Mohammad A.,Khan, Mohammad R.,Parrick, John,Shaw, C. J. Granville
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p. 1431 - 1435
(2007/10/02)
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