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Unprecedentedly High Formic Acid Dehydrogenation Activity on an Iridium Complex with an N,N'-Diimine Ligand in Water
Wang, Zhijun1,2; Lu, Sheng-Mei1; Li, Jun1; Wang, Jijie1; Li, Can1
KeywordDehydrogenation Diimine Ligand Formic Acid Hydrogen Iridium Complex
Source PublicationCHEMISTRY-A EUROPEAN JOURNAL
2015-09-01
DOI10.1002/chem.201502086
Volume21Issue:36Pages:12592-12595
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectChemistry, Multidisciplinary
WOS Research AreaChemistry
WOS KeywordTRANSITION-METAL IONS ; HYDROGEN-STORAGE ; AQUEOUS-SOLUTION ; CARBON-DIOXIDE ; SELECTIVE DEHYDROGENATION ; REVERSIBLE HYDROGENATION ; COORDINATION-COMPLEXES ; AMBIENT-TEMPERATURE ; RUTHENIUM COMPLEXES ; IRON CATALYST
AbstractHydrogen production from the dehydrogenation of formic acid (FA) is promising. Most of the current catalysts for FA dehydrogenation are effective only in the presence of bases or additives. We report here newly developed iridium complexes containing conjugated N,N-diimine ligands for FA dehydrogenation in water without the addition of bases or additives. A turnover frequency (TOF) of 487500h(-1) with [Cp*Ir(L1)Cl]Cl (L1=2,2-bi-2-imidazoline) at 90 degrees C and a turnover number (TON) of 2400000 with in situ prepared catalyst from [IrCp*Cl-2](2) and 2,2-bi-1,4,5,6-tetrahydropyrimidine (L2) at 80 degrees C were obtained, the highest values reported for FA dehydrogenation to date. A mechanistic study reveals that the formation of [Ir-H] intermediate species is the rate-determining step in the catalytic cycle.
Language英语
WOS IDWOS:000360312100008
Citation statistics
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/146492
Collection中国科学院大连化学物理研究所
Affiliation1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Wang, Zhijun,Lu, Sheng-Mei,Li, Jun,et al. Unprecedentedly High Formic Acid Dehydrogenation Activity on an Iridium Complex with an N,N'-Diimine Ligand in Water[J]. CHEMISTRY-A EUROPEAN JOURNAL,2015,21(36):12592-12595.
APA Wang, Zhijun,Lu, Sheng-Mei,Li, Jun,Wang, Jijie,&Li, Can.(2015).Unprecedentedly High Formic Acid Dehydrogenation Activity on an Iridium Complex with an N,N'-Diimine Ligand in Water.CHEMISTRY-A EUROPEAN JOURNAL,21(36),12592-12595.
MLA Wang, Zhijun,et al."Unprecedentedly High Formic Acid Dehydrogenation Activity on an Iridium Complex with an N,N'-Diimine Ligand in Water".CHEMISTRY-A EUROPEAN JOURNAL 21.36(2015):12592-12595.
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