Enzymes are biological catalysts that produce large increases in reaction rates and tend to be specific for certain reactants and products. 73942-87-7, Name is 7,8-Dimethoxy-1,3-dihydro-2H-3-benzazepin-2-one, molecular formula is C12H13NO3, belongs to amides-buliding-blocks compound. In a document, author is Toledano, M., introduce the new discover, HPLC of Formula: C12H13NO3.
Coordination of 2,2 ‘-(Trifluoroazanediyl)bis(N,N ‘-dimethylacetamide) with U(VI), Nd(III), and Np(V): A Thermodynamic and Structural Study
Thermodynamic properties of the complexation of 2,2′-(trifluoroazanediyl)bis(N,N’-dimethylacetamide) (CF(3)ABDMA) with U(VI), Nd(III), and Np(V) have been studied in 1.0 M NaNO3 at 25 degrees C. Equilibrium constants of the complexation were determined by potentiometry and spectrophotometry. In comparison with a series of structurally related amine bridged diacetamide ligands, including 2,2′-(benzylazanediyl)bis(N,N’-dimethylacetamide) (BnABDMA), 2,2′-azanediylbis(N,N’-dimethylacetamide) (ABDMA), and 2,2′-(methylazanediyl)bis(N,N’-dimethylacetamide) (MABDMA), CF(3)ABDMA forms weaker complexes with U(VI), Nd(III), and Np(V) due to the lower basicity of the center N atom in CF(3)ABDMA resulting from the attachment of the strong electron-withdrawing CF3-moiety. The complexation strength of CF(3)ABDMA with the three metal ions follows the order: UO22+ > Nd3+ > NpO2, consistent with the order of the effective charges of the metal ions. Structural information on the U(VI)/CF(3)ABDMA complexes in solution and in solid was obtained by theoretical computation, single crystal X-ray diffractometry, F-19 NMR, and electrospray ionization mass spectrometry. The structural data indicate that, similar to the three previously studied amine-bridged diacetamide ligands (BnABDMA, ABDMA, and MABDMA), the CF(3)ABDMA ligand coordinates to UO22+ in a tridentate mode, through the center nitrogen and the two amide oxygen atoms.
Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law. In my other articles, you can also check out more blogs about 73942-87-7. HPLC of Formula: C12H13NO3.