Sometimes chemists are able to propose two or more mechanisms that are consistent with the available data.category: Tetrahydropyrans, If a proposed mechanism predicts the wrong experimental rate law, however, the mechanism must be incorrect.Welcome to check out more blogs about 499-40-1, in my other articles.
category: Tetrahydropyrans, The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature 499-40-1, C12H22O11. A document type is Article, introducing its new discovery.
The VO2+-atp and VO2+-tp (tp=triphosphate) systems were studied by potentiometry and X-band e.s.r. spectroscopy in the pH ranges 2.5-5.2 and 2.5-6.5 respectively.The systems were investigated in the presence of 0.1 mol dm-3 NaClO4 at 25.0+/- deg C in the ligand-metal molar ratio range 3-1.5.Analysis of the data reveals that VO2+ is able to form stable species with both ligands.The logbeta values revelant to the 1:1 complexes are 6.67+/-0.02 and 9.87+/-0.02 for atp and tp respectively.Species <(VO)(atp)>2-, <(VO)(atp)2>6-, and <(VO)2(atp)> were found in all the mixtures investigated.The complex <(VO)2(atp)> has a logbeta value equal to 10.21+/-0.02; VO2+-tp species with a 2:1 molar ratio were not found in the mixtures investigated.A structure in which the VO2+ ion interacts just with the triphosphate chain is proposed for the complex <(VO)(atp)>2- while metal co-ordination to the phosphate chain and to the ribose hydroxyl group is suggested for <(VO)2(atp)>.Solid <(VO)2(atp)> was isolated from aqueous solutions containing VO2+ and atp in a 2:1 molar ratio at pH 2.5.An oxygen only co-ordination mode for the metal cation was determined from spectroscopic data.A solid compound containing VO2+, atp, and bipyam in a 1:1:1 molar ratio was also isolated from acidic aqueous solution.
Sometimes chemists are able to propose two or more mechanisms that are consistent with the available data.category: Tetrahydropyrans, If a proposed mechanism predicts the wrong experimental rate law, however, the mechanism must be incorrect.Welcome to check out more blogs about 499-40-1, in my other articles.
Reference：
Tetrahydropyran – Wikipedia,
Tetrahydropyran – an overview | ScienceDirect Topics