In 2017,Suna, Yuki; Himeda, Yuichiro; Fujita, Etsuko; Muckerman, James T.; Ertem, Mehmed Z. published 《Iridium Complexes with Proton-Responsive Azole-Type Ligands as Effective Catalysts for CO2 Hydrogenation》.ChemSusChem published the findings.COA of Formula: C4H9NO2 The information in the text is summarized as follows:
Pentamethylcyclopentadienyl Ir (Cp*Ir) complexes with bidentate ligands consisting of a pyridine ring and an electron-rich diazole ring were prepared Their catalytic activity toward CO2 hydrogenation in 2.0 M KHCO3 aqueous solutions (pH 8.5) at 50°, under 1.0 MPa CO2/H2 (1:1) are reported as an alternative to photo- and electrochem. CO2 reduction Bidentate ligands incorporating an electron-rich diazole ring improved the catalytic performance of the Ir complexes compared to the bipyridine ligand. Complexes 2, 4, and 6, possessing both a hydroxy group and an uncoordinated NH group, which are proton-responsive and capable of generating pendent bases in basic media, recorded high initial turnover frequency values of 1300, 1550, and 2000 h-1, resp. Spectroscopic and computational studies revealed that the reversible deprotonation changes the electronic properties of the complexes and causes interactions between pendent base and substrate and/or solvent H2O mols., resulting in high catalytic performance in basic media. In the experiment, the researchers used N-Methoxy-N-methylacetamide(cas: 78191-00-1COA of Formula: C4H9NO2)
N-Methoxy-N-methylacetamide(cas: 78191-00-1) belongs to anime. Left-handed and right-handed forms (mirror-image configurations, known as optical isomers or enantiomers) are possible when all the substituents on the central nitrogen atom are different (i.e., the nitrogen is chiral). With amines, there is extremely rapid inversion in which the two configurations are interconverted.COA of Formula: C4H9NO2
Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics