14494-37-2Relevant articles and documents
Reactions of Copper(I) with Micellar Porphyrins and Hemes. Spectroscopic Evidence for Copper(I)-Heme Binuclear Ion Formation
Deardorff, Eugene A.,Carr, Paulette A. G.,Hurst, James K.
, p. 6611 - 6616 (1981)
Addition of cuprous ion to sodium dodecyl sulfate solubilized porphyrins and ferrihemes containing olefinic substituent groups gives rise to spectral perturbations diagnostic of Cu(I) ? complexation.The hemes undergo slow subsequent demetalation in acidic solution, forming porphyrin dications; in the presence of high concentrations of Cu(II) ion the corresponding cupriporphyrins are also formed.For ferriprotoporphyrin IX, the rate of product formation is inversely dependent upon the Cu(II) ion concentration; the data are interpreted in terms of a reaction mechanism, the central feature of which is a dynamic equilibrium between oxidized and reduced hemes, i.e., FeIIIPPIX-CuI + Cu(I) = FeIIPPIX-CuI + Cu(II).This interpretation is supported by the observation that the hemes containing electron-withdrawing substituents in β-pyrrolic positions are extensively reduced to the ferro state by copper(I), but hemes lacking these groups remain primarily ferric when mixed with the cuprous reagent.The reduced Fe(II)-Cu(I) and mixed-valent Fe(III)-Cu(I) binuclear ions are discussed as potential structural models for the oxygen-binding site in cytochrome oxidase.
Impact of metal ions in porphyrin-based applied materials for visible-light photocatalysis: Key information from ultrafast electronic spectroscopy
Kar, Prasenjit,Sardar, Samim,Alarousu, Erkki,Sun, Jingya,Seddigi, Zaki S.,Ahmed, Saleh A.,Danish, Ekram Y.,Mohammed, Omar F.,Pal, Samir Kumar
, p. 10475 - 10483 (2014/08/18)
ProtoporphyrinIX-zinc oxide (PP-ZnO) nanohybrids have been synthesized for applications in photocatalytic devices. High-resolution transmission electron microscopy (HRTEM), X-ray diffraction (XRD), and steady-state infrared, absorption, and emission spect
