Chemistry can be defined as the study of matter and the changes it undergoes. You¡¯ll sometimes hear it called the central science because it is the connection between physics and all the other sciences, starting with biology. 131457-46-0, Name is (4S,4S)-2,2-(Propane-2,2-diyl)bis(4-phenyl-4,5-dihydrooxazole), molecular formula is , belongs to catalyst-ligand compound. In a document, author is Palo, Alice, HPLC of Formula: C21H22N2O2.
Unsymmetrical Dinuclear Ru-II Complexes with Bridging Polydentate Nitrogen Ligands as Potential Water Oxidation Catalysts
Mononuclear Ru-II complex [RuCl(kappa N-3-tpm)(kappa N-2-bptz)]Cl, [1]Cl [tpm=tris(1- pyrazolyl)methane; bptz=3,6-di(2-pyridyl)-1,2,4,5-tetrazine], and dinuclear complexes [RuCl(kappa N-3-tpm)(mu-kappa N-2:kappa N-2-bptz)Ru(kappa N-2-bipy)(2)][PF6](3), [3][PF6](3), [RuCl(eta(6)-p-cymene)(mu-kappa N-2:kappa N-2-dpp)Ru(kappa N-2-bipy)(2)][PF6](2), [4][PF6](2), and [RuCl(eta(6)-p-cymene)(mu-kappa N-2:kappa N-2-dpp)Ru(kappa N-2-biqn)(2)][PF6](3), [5][PF6](3) [dpp=2,3-bis(2 ‘-pyridyl)-pyrazine; bipy=2,2 ‘-bipyridine; biqn=2,2 ‘-quinoline], incorporating both potentially catalytic and photosensitive subunits, were synthesized and characterized by means of elemental analysis, mass spectrometry, and spectroscopic methods. The molecular structures of the new compounds were also investigated and compared by means of DFT calculations. The absorption spectra of all the compounds are dominated by metal-to-ligand charge-transfer bands in the visible (which in most cases largely extend over the red portion of the spectrum) and ligand-centered bands in the UV region. The oxidation behavior is based on metal-centered Ru-II to Ru-III oxidation processes, which in phosphate buffer solution are followed by a catalytic water oxidation wave for [1]Cl and [3][PF6](3). For these compounds, the mechanism of water oxidation is proposed to consist in water nucleophilic attack, according to chemical experiments with Ce(IV) salts, so demonstrating for the first time that the bptz ligand can be profitably used to build ruthenium(II) complexes with catalytic properties. On the contrary, no catalytic process is observed for 4 and 5, most likely due to the high positive potential for Ru-II oxidation induced by the presence of the p-cymene moiety.
Sometimes chemists are able to propose two or more mechanisms that are consistent with the available data. If a proposed mechanism predicts the wrong experimental rate law, however, the mechanism must be incorrect.Welcome to check out more blogs about 131457-46-0, in my other articles. HPLC of Formula: C21H22N2O2.
Reference:
Metal catalyst and ligand design,
,Ligand Template Strategies for Catalyst Encapsulation – NCBI