Some examples of the diverse research done by chemistry experts include discovery of new medicines and vaccines, improving understanding of environmental issues, and development of new chemical products and materials. 619-67-0, Name is 4-Hydrazinylbenzoic acid, molecular formula is C7H8N2O2, Computed Properties of https://www.ambeed.com/products/619-67-0.html, belongs to phthalazine compound, is a common compound. In a patnet, author is Ongoma, Peter O., once mentioned the new application about 619-67-0.
A kinetic study of aqua substitution in dinuclear Pt(II) complexes, [{cis-Pt(OH2)(NH3)(2)}(2)-mu-pmn](ClO4)(2) (pmn), [{cis-Pt(OH2)(NH3)(2)}(2)-mu-pdn](ClO4)(2) (pdn), [{cis-Pt(OH2)(NH3)(2)}(2)-mu-qzn](ClO4)(2) (qzn), [{cis-Pt(OH2)(NH3)(2)}(2)-mu-pht](ClO4)(2) (pht) and [{cis-Pt(OH2)(NH3)(2)}(2)-mu-pzn](ClO4)(2) (pzn) (pmn = pyrimidine, pdn = pyridazine, qzn = quinazoline, pht = phthalazine, pzn = pyrazine) by different sulphur-donor nucleophiles, thiourea (TU), N,N-dimethylthiourea (DMTU) and N,N,N,N-tetramethylthiourea (TMTU) was carried out. The reactions were followed under pseudo-first-order conditions as a function of nucleophile concentration and temperature using stopped-flow and UV-Vis spectrophotometric methods. The reactivity of the nucleophiles follows the order TU > DMTU > TMTU. The general order of reactivity for the aqua complexes follows pzn > qzn > pmn > pdn > pht which is confirmed by the obtained pK (a) values and the quantum chemical calculated NBO charges at the metal centre. The negative values reported for the activation entropy confirm the associative nature of the substitution process. The results demonstrate the strong connection between structural and electronic characteristics of the diazine-bridging ligand and reactivity of the dinuclear Pt(II) complexes.
A reaction mechanism is the microscopic path by which reactants are transformed into products. Each step is an elementary reaction. In my other articles, you can also check out more blogs about 619-67-0. Computed Properties of https://www.ambeed.com/products/619-67-0.html.
Reference:
Phthalazine – Wikipedia,
,Phthalazine | C8H6N2 – PubChem