Kinetic and equilibrium studies on porphyrins, chlorins, and isobacteriochlorins: basicities, zinc incorporation, and acid-catalyzed solvolysis reactions in aqueous and nonaqueous solutions

Kinetic studies of the formation, acid-c

Kinetic studies of the formation, acid-catalyzed solvolysis, and cupric ion displacement of a zinc porphyrin in aqueous solutions

✍ S.K. Cheung; F.L. Dixon; E.B. Fleischer; D.Y. Jeter; M. Krishnamurthy 📂 Article 📅 1973 🏛 Elsevier Science ⚖ 696 KB

The rates of zinc incorporation, zinc demetallkon, and cupric ion displacement of zinc in a water-solubie porphyrin were investigated. The tetra-sulfonated tetraphenyiporphine TPPS (see Fig. 1) n-as employed in the studies. The rate of zinc ion incorporation was equal to [k,][Zn2+] EPPS J where kr =