| Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2017: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
|
|---|
| Outline of Final Research Achievements |
We have utilized four linear tetradentate phosphine ligands with longer central methylene chains and different configurations at the inner phosphorous atoms, meso- and rac-Ph2PCH2P(Ph)(CH2)nP(Ph)CH2PPh2 (n = 2: dpmppe, 3:dpmppp, 4:dpmppb) to modulate the structures and reactivity of copper hydride species. These ligands gave a series of multinuclear copper hydride complexes with a variety of metal frameworks. Among these copper hydride complexes, only the copper hydride supported by meso-dpmppb showed reactivity toward CO2. Furthermore, the copper hydride was found to be a suitable catalyst for formic acid dehydrogenation into H2 and CO2. An unsymmetric dinuclear copper motif bridged by tetradentate phosphine ligands, was proposed as an active species to promote the decomposition of FA by virtue of synergistic effects of the Cu2 unit. The present system is the first distinguished catalytic dehydrogenation of FA by using cheap base metallic Cu complexes.
|
