Quality Control of 4,4′-Bis(chloromethyl)-2,2′-bipyridineOn March 1, 2019, Woo, Sung-Jun; Choi, Sunghan; Kim, So-Yoen; Kim, Pil Soo; Jo, Ju Hyoung; Kim, Chul Hoon; Son, Ho-Jin; Pac, Chyongjin; Kang, Sang Ook published an article in ACS Catalysis. The article was ãHighly Selective and Durable Photochemical CO2 Reduction by Molecular Mn(I) Catalyst Fixed on a Particular Dye-Sensitized TiO2 Platformã? The article mentions the following:
A new Mn(I)-based hybrid system (OrgD-|TiO2|-MnP) for photocatalytic CO2 reduction is designed to be a co-assembly of Mn(4,4′-Y2-bpy)(CO)3Cl (MnP; Y = CH2PO(OH)2) and (E)-3-[5-(4-(diphenylamino)phenyl)-2,2′-bithiophen-2′-yl]-2-cyanoacrylicacid(OrgD) on TiO2 semiconductor particles. The OrgD-|TiO2|-MnP hybrid reveals persistent photocatalytic behavior, giving high turnover numbers and excellent product selectivity (HCOO- vs. CO) that surpass the catalytic activities of the related homogeneous and other heterogenized Mn photocatalytic systems reported so far. As a typical run, visible-light irradiation of the hybrid catalyst in the presence of 0.1M electron donor (ED) and 0.001M LiClO4 persistently produced HCOO- with a >99% selectivity accompanied by a trace amount of CO; the turnover number (TONformate) reached â?10 after 25 h irradiation The product selectivity (HCOO-/CO) is controlled by changing the loading amount of MnP on the TiO2 surface. In-situ FTIR anal. of the hybrid during photocatalysis revealed that at low Mn concentration, the Mn-H monomeric mechanism associated with HCOO- formation is dominant, whereas at high Mn concentration, CO is formed via an Mn-Mn dimer mechanism. In the part of experimental materials, we found many familiar compounds, such as 4,4′-Bis(chloromethyl)-2,2′-bipyridine(cas: 138219-98-4Quality Control of 4,4′-Bis(chloromethyl)-2,2′-bipyridine)
4,4′-Bis(chloromethyl)-2,2′-bipyridine(cas: 138219-98-4) belongs to pyridine derivatives. The ring atoms in the pyridine molecule are sp2-hybridized. The nitrogen is involved in the π-bonding aromatic system using its unhybridized p orbital. Quality Control of 4,4′-Bis(chloromethyl)-2,2′-bipyridine Pyridine has a conjugated system of six π electrons that are delocalized over the ring.