Enzyme inhibitors cause a decrease in the reaction rate of an enzyme-catalyzed reaction by binding to a specific portion of an enzyme. Irreversible inhibitors are therefore the equivalent of poisons in heterogeneous catalysis. 499-40-1, C12H22O11. A document type is Article, introducing its new discovery., Related Products of 499-40-1
Several complexes of bis(2-pyridyl)amine (‘dpa’) with lead(II) salts have been synthesized and subjected to room-temperature single-crystal X-ray studies. 1:1 Adducts have been obtained with lead(II) bromide and iodide. They have similar unit cells, also similar to those of a variety of other N,N?-heteroaromatic bidentate ligand adducts with metal(II) halides, and the C2/c cell described elsewhere in this series may be regarded as archetypical. [(dpa)PbBr2](?/?) is monoclinic, P 21/a, a 9.791(4), b 9.720(4), c 16.498(4) A, beta 95.96(4), Z = 4 f.u.; conventional R on |F| at convergence was 0.066 for N = 2717 ‘observed’ (I > 3sigma(I)) reflections. [(dpa)PbI2](?/?) is monoclinic. P21/c, a 8.299(2), b 10.229(3), c 16-905(5) A, beta 101.47(2), Z = 4 f.u.; R was 0.044 for N 2140. Both complexes, like their 2,2?-bipyridine and 1,10-phenanthroline analogues, are linear polymers with six-coordinate (cis-N2)Pb(mu-X)4 environments linked in infinite … (mu-X)2Pb(mu-X)2…one-dimensional chains, and with dpa being bidentate. A 2:1 adduct of bis(2-pyridyl)amine with lead(II) acetate (‘Pb(ac)2?) is also described. [(dpa)2Pb(ac)2](?/?) is monoclinic, C 2/c, a 28.835(5), b 10.868(3), c 7.665(2) A, beta 94.21(2), Z = 4; R was 0.029 for N 1854. The complex is a linear polymer along c; the lead atom lies on a crystallographic twofold axis with a coordination environment comprising a pair of symmetry-related dpa ligands, in this case unidentate (Pb-N 3.092(6) A), and a pair of symmetry-related bidentate acetate ligands (Pb-O 2.465(4) and 2.568(5) A) with the first oxygen atom performing an additional bridging function to adjacent symmetry-related lead atoms (Pb-O 2.663(4) A).
If you are interested in 499-40-1, you can contact me at any time and look forward to more communication.Related Products of 499-40-1
Reference：
Tetrahydropyran – Wikipedia,
Tetrahydropyran – an overview | ScienceDirect Topics