Chemistry is an experimental science, Name: 4-Pyridazinecarboxylic Acid, and the best way to enjoy it and learn about it is performing experiments.Introducing a new discovery about 50681-25-9, Name is 4-Pyridazinecarboxylic Acid, molecular formula is C5H4N2O2, belongs to pyridazines compound. In a document, author is Shah, Shaheen.
Quantum chemical investigation on photodegradation mechanisms of sulfamethoxypyridazine with dissolved inorganic matter and hydroxyl radical
Sulfamethoxypyridazine (SMP) is one of the commonly used sulfonamide antibiotics (SAs). SAs are mainly studied to undergo triplet-sensitized photodegradation in water under natural sunlight with other coexisting aquatic environmental organic pollutants. In this work, SMP was selected as a representative of SAs. We studied the mechanisms of triplet-sensitized photodegradation of SMP and the influence of selected dissolved inorganic matter, i.e., anions (Br-, Cl-, and NO3-) and cations ions (Ca2+, mg(2+), and Zn2+) on SMP photodegradation mechanism by quantum chemical methods. In addition, the degradation mechanisms of SMP by hydroxyl radical (OH center dot) were also investigated. The creation of SO2 extrusion product was accessed with two different energy pathways (pathway-1 and pathway-2) by following two steps (step-I and step-II) in the triplet sensitized photodegradation of SMP. Due to low activation energy, the pathway-1 was considered as the main pathway to obtain SO2 extrusion product. Step-II of pathway-1 was measured to be the rate-limiting step (RLS) of SMP photodegradation mechanism and the effect of the selected anions and cations was estimated for this step. All selected anions and cations promoted photodegradation of SMP by dropping the activation energy of pathway-1. The estimated low activation energies of different degradation pathways of SMP with OH center dot radical indicate that OH center dot radical is a very powerful oxidizing agent for SMP degradation via attack through benzene derivative and pyridazine derivative ring. (C) 2016 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.
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 50681-25-9. Name: 4-Pyridazinecarboxylic Acid.
Reference:
Pyridazine – Wikipedia,
,Pyridazine | C4H4N2 – PubChem