Synthesis, characterization, electrochemistry and spectroelectrochemistry of novel soluble porphyrazines bearing unsaturated functional groups

Syntheses of Coordination Compounds of (±)-2-Amino-3-(4-Hydroxyphenyl)Propionic Acid, Mixed Ligand Complexes and Their Biological Activities

“…For the entire four assays compound 5 exhibited the least activity, this observed activity validates the proposed geometry for the complex. The lower activity of compounds 3 and 4, copper complexes with octahedral geometry in comparison with compound 6, the mixed ligand complex, alludes to the individualistic nature of the central metal ion in defining the geometry of a given complex and as a consequence its activity [45] [46]. This may be exemplified by the activity of cisplatin, with platinum as the central metal ion, the use of other metal ions as the central metal resulted in their null or lower activity in comparison with cisplatin [47] [48].…”

Electrochemical properties of metallated porphyrazines possessing isophthaloxybutylsulfanyl substituents: Application in the electrocatalytic oxidation of hydrazine

“…In addition, the heights of the peaks R 2 /R 2 ' are half of that of the first reduction peak. Thus, such behavior may be attributed to the aggregation of the macrocycle, which resulted finally in the split into the two reduction peaks [29,31,32].…”

“…According to these data, the metal-free porphyrazine macrocycle exhibits one oxidation process at E 1/2 = 0.67 V, as well as two reduction couples at -1.04 V and -1.32 V within the TBAP/DCM potential window. It is obvious that Pz 2 can undergo only ring-based reactions, which is due to the lack of an electroactive metal ion in the center [29][30][31]. The reduction processes are reversible in terms of the ratio of anodic to cathodic peak currents.…”

Electrochemical Studies of Tetraheteroarenoporphyrazines in an Alkaline Solution

“…Начиная с середины XX в. и по настоящее время активно ведутся исследования порфиринов и родственных им структур с целью выяснения молекулярных основ механизмов их функционирования в живых организмах, а также с целью поиска практических аспектов использования полезных свойств (каталитической активности, применения в полупроводниковых материалах, медицине, термостабилизации и т.д.). [1][2][3][4][5][6][7][8][9][10][11][12][13][14] За последние десятилетия исследованы электрохимические свойства более тысячи различных металлопорфиринов (МР) с различными лигандами и сотни порфириновых макроциклов. [3][4][5] Для многих из этих соединений существуют несколько различных окислительно-восстановительных состояний.…”