Journal
CHEMCATCHEM
Volume 13, Issue 1, Pages 169-173Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cctc.202001387
Keywords
palladium; cluster; catalyst; hydrogenation; silylene ligand
Categories
Funding
- Ministry of Education, Culture, Sports, Science and Technology, Japan [16H04120, 20H02751]
- Yazaki Memorial Foundation for Science and Technology
- Grants-in-Aid for Scientific Research [20H02751, 16H04120] Funding Source: KAKEN
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A planar tetranuclear palladium cluster was synthesized from the reaction of a cyclotetrasilane with [Pd((CNBu)-Bu-t)(2)](3), exhibiting efficient catalytic activity for the hydrogenation of alkenes and alkynes. Single-crystal X-ray diffraction analysis and DFT calculations revealed that the tetranuclear framework was effectively supported by the bridging organosilylene ligand.
A planar tetranuclear palladium cluster was obtained from the reaction of a cyclotetrasilane with [Pd((CNBu)-Bu-t)(2)](3). Single-crystal X-ray diffraction analysis and DFT calculations revealed that the tetranuclear framework of the cluster was supported effectively by the bridging organosilylene ligand. Although [Pd((CNBu)-Bu-t)(2)](3) as well as mononuclear palladium bis(silyl) complex, cis-Pd(SiMePh2)(2)((CNBu)-Bu-t)(2), do not act as the effective catalyst, the planar tetranuclear palladium cluster acts as an efficient catalyst for the hydrogenation of alkenes and alkynes including sterically hindered tri- and tetra-substituted alkenes.
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