| Project/Area Number |
26248022
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Functional solid state chemistry
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| Research Institution | Hokkaido University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
伊藤 亮孝 大阪市立大学, 理学(系)研究科(研究院), 助教 (20708060)
作田 絵里 長崎大学, 工学(系)研究科(研究院), 准教授 (80554378)
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥42,900,000 (Direct Cost: ¥33,000,000、Indirect Cost: ¥9,900,000)
Fiscal Year 2016: ¥9,750,000 (Direct Cost: ¥7,500,000、Indirect Cost: ¥2,250,000)
Fiscal Year 2015: ¥9,880,000 (Direct Cost: ¥7,600,000、Indirect Cost: ¥2,280,000)
Fiscal Year 2014: ¥23,270,000 (Direct Cost: ¥17,900,000、Indirect Cost: ¥5,370,000)
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| Keywords | 強発光 / 長励起寿命 / 金属6核クラスター / ルテニウム錯体 / ゼロ磁場分裂 / 発光材料 / 長発光寿命 / 金属６核クラスター / 強発光・長寿命 / ルテニウム（ＩＩ）錯体 / 励起三重項状態 |
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| Outline of Final Research Achievements |
For Ru(II) complexes having multiple (triarylboryl)ethynyl groups in 2,2’-bipyridine (B2-bpy, [Ru(B2-bpy)n(bpy)3－n]2+ (n = 1 ~ 3)), an increase in n rendered that of the molar absorption coefficient of the MLCT absorption band and the emission quantum yield. We demonstrated successfully the emission yield = 0.43 for [Ru(B2-bpy)3]2+, which was the most intense among those of polypyridine Ru(II) complexes hitherto reported. We also revealed that [Ru(B2-phen)3]2+ (phen = 1,10-phenanthroline) showed simultaneously intense (yield = 0.29) and long-lived emission (lifetime = 8.7 microsecond).For octahedral hexametal Mo(II) clusters, we showed that [Mo6I8L6]2- possessing terminal carboxylate ligands (L) showed simultaneously intense (yield = 0.64) and long-lived emission (340 microsecond). It was also found that the spectroscopic and photophysical properties of [Mo6X8L6]2- (X = Br, I; L = carboxylate) were controlled synthetically by the acid dissociation equilibrium constant of L.
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