{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["Nikol AT"],"funding":["Carlsbergfondet","Danmarks Frie Forskningsfond","Villum Fonden","Novo Nordisk Fonden"],"pagination":["26209"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC11527872"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["14(1)"],"pubmed_abstract":["Formic acid is one of the most promising candidates for the long-term storage of hydrogen in liquid form. Herein, we present a new collection of ruthenium pincer complexes of the general formula [RuHCl(POP)(PPh<sub>3</sub>)] using commercially available or easy-to-synthesize tridentate xantphos-type POP pincer ligands. We applied these complexes in the dehydrogenation of formic acid to CO<sub>2</sub> and H<sub>2</sub> using the ionic liquid BMIM OAc (1-butyl-3-methylimidazolium acetate) as solvent under mild, reflux-free conditions. The best performing catalyst with respect to maximum turnover frequency, the literature-known complex [RuHCl(xantphos)(PPh<sub>3</sub>)] Ru-1, produced a maximum turnover frequency of 4525 h<sup>-1</sup> with 74% conversion after 10 min at 90 °C and complete conversion (> 98%) occurring within 3 h. On the other hand, the best overall performing catalyst, the novel complex [RuHCl(iPr-dbfphos)(PPh<sub>3</sub>)] Ru-2, facilitated full conversion within 1 h leading to an overall turnover frequency of 1009 h<sup>-1</sup>. Moreover, catalytic activity was observed at temperatures as low as 60 °C. Only CO<sub>2</sub> and H<sub>2</sub> are observed in the gas phase, with no CO detected. High-resolution mass spectrometry suggests the presence of N-heterocyclic carbene complexes in the reaction mixture."],"journal":["Scientific reports"],"pubmed_title":["Formic acid dehydrogenation using Ruthenium-POP pincer complexes in ionic liquids."],"pmcid":["PMC11527872"],"funding_grant_id":["19049","1127-00172B","CF20-0365","NNF20OC0064560"],"pubmed_authors":["Nikol AT","Jorgensen MSB","Rabell B","Nielsen M","Larsen RW"],"additional_accession":[]},"is_claimable":false,"name":"Formic acid dehydrogenation using Ruthenium-POP pincer complexes in ionic liquids.","description":"Formic acid is one of the most promising candidates for the long-term storage of hydrogen in liquid form. Herein, we present a new collection of ruthenium pincer complexes of the general formula [RuHCl(POP)(PPh<sub>3</sub>)] using commercially available or easy-to-synthesize tridentate xantphos-type POP pincer ligands. We applied these complexes in the dehydrogenation of formic acid to CO<sub>2</sub> and H<sub>2</sub> using the ionic liquid BMIM OAc (1-butyl-3-methylimidazolium acetate) as solvent under mild, reflux-free conditions. The best performing catalyst with respect to maximum turnover frequency, the literature-known complex [RuHCl(xantphos)(PPh<sub>3</sub>)] Ru-1, produced a maximum turnover frequency of 4525 h<sup>-1</sup> with 74% conversion after 10 min at 90 °C and complete conversion (> 98%) occurring within 3 h. On the other hand, the best overall performing catalyst, the novel complex [RuHCl(iPr-dbfphos)(PPh<sub>3</sub>)] Ru-2, facilitated full conversion within 1 h leading to an overall turnover frequency of 1009 h<sup>-1</sup>. Moreover, catalytic activity was observed at temperatures as low as 60 °C. Only CO<sub>2</sub> and H<sub>2</sub> are observed in the gas phase, with no CO detected. High-resolution mass spectrometry suggests the presence of N-heterocyclic carbene complexes in the reaction mixture.","dates":{"release":"2024-01-01T00:00:00Z","publication":"2024 Oct","modification":"2025-04-05T09:14:19.924Z","creation":"2025-04-05T09:14:19.924Z"},"accession":"S-EPMC11527872","cross_references":{"pubmed":["39482323"],"doi":["10.1038/s41598-024-76782-3"]}}