Reaction of a Nitrosyl Complex of Cobalt Porphyrin with Hydrogen Peroxide: Putative Formation of Peroxynitrite Intermediate.
Soumen SahaKuldeep GogoiBaishakhi MondalSomnath GhoshHemanta DekaBiplab MondalPublished in: Inorganic chemistry (2017)
The cobalt porphyrin complex [(Cl4TPP)Co], 1, {Cl4TPP = 5,10,15,20-tetrakis(4'-chlorophenyl)porphyrinate dianion} in dichloromethane solution was subjected to react with nitric oxide (NO) gas and resulted in the formation of the corresponding nitrosyl complex [(Cl4TPP)Co(NO)], 2, having {CoNO}8 description. It was characterized by spectroscopic studies and single-crystal X-ray structure determination. It did not react with dioxygen. However, in CH2Cl2/CH3CN solution, it reacted with H2O2 to result in the Co-nitrito complex [(Cl4TPP)Co(NO2)], 3, with the simultaneous release of O2. It induced ring nitration to the added phenol in an appreciable yield. The reaction presumably proceeds through the formation of corresponding Co-peroxynitrite intermediate.
Keyphrases
- hydrogen peroxide
- nitric oxide
- photodynamic therapy
- room temperature
- metal organic framework
- molecular docking
- magnetic resonance imaging
- high resolution
- computed tomography
- nitric oxide synthase
- reduced graphene oxide
- fluorescent probe
- squamous cell carcinoma
- gold nanoparticles
- drug induced
- lymph node metastasis
- oxidative stress
- solid state
- single molecule
- molecularly imprinted
- molecular dynamics simulations
- contrast enhanced