| Project/Area Number |
17550063
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Inorganic chemistry
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| Research Institution | Yokohama City University |
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Principal Investigator |
SHINOZAKI Kazuteru Yokohama City University, International Graduate School of Arts and Sciences, Professor, 国際総合科学研究科, 教授 (40226139)
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| Project Period (FY) |
2005 – 2006
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| Project Status |
Completed (Fiscal Year 2006)
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| Budget Amount *help |
¥3,600,000 (Direct Cost: ¥3,600,000)
Fiscal Year 2006: ¥1,800,000 (Direct Cost: ¥1,800,000)
Fiscal Year 2005: ¥1,800,000 (Direct Cost: ¥1,800,000)
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| Keywords | rhodium complex / structural change by illumination / hydrogen sorption / molecular device / solid-state reaction / 光スイッチ / 分子機械 / ナノマシン / 水素 / 構造・機能材料 |
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| Research Abstract |
Rhodium(I) complex changes its color from purple to colorless when it reacts with hydrogen gas. Laser photolysis revealed that the reaction rate of [Rh(bpy)_2]^+ (bpy=2,2'-bipyridine) into [Rh(bpy)_2H_2]^+ was about 1μs. H_2 elimination of [Rh(bpy)_2H_2]^- by photoirradiation underwent within 10ns of the laser pulse. It is concluded that the rhodium complexes have a capability of hydrogen storage device. The reversible hydrogen capture-release reaction was observed even in the solid state ; the purple color of [Rh(bpy)_2]ClO_4 appeared by photoirradiation of pale yellow powder of [Rh(bpy)_2H2_]ClO_4. We observed similar color-change of other complex solids like the rhodium complex. For example, [Ru(dbb)_2(CN)_2] (bdd=4,4'-di-t-Bu-2,2'-bipyridine) changes its color and luminescence color by exposure to moisture and VOC (volatile organic compound) vapor. [Pt(dpb)Cl] solid shows orange luminescence by sorption of VOC gas.
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