Formation, stability, and reactivity of a mononuclear nonheme oxoiron(IV) complex in aqueous solution.

نویسندگان

  • Chivukula V Sastri
  • Mi Sook Seo
  • Mi Joo Park
  • Kwan Mook Kim
  • Wonwoo Nam
چکیده

A mononuclear nonheme oxoiron(IV) complex bearing a pentadentate N5 ligand was prepared in aqueous solution; the pH dependence of its stability and reactivities was reported along with the mechanistic details of sulfide oxidation by the oxoiron(IV) species.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Axial ligand substituted nonheme FeIV=O complexes: observation of near-UV LMCT bands and Fe=O Raman vibrations.

Axial ligand substitution of a mononuclear nonheme oxoiron(IV) complex, [FeIV(O)(TMC)(NCCH3)]2+ (1) (TMC = 1,4,8,11-tetramethyl-1,4,8,11-tetraazacyclotetradecane), leads to the formation of new FeIV=O species with relatively intense electronic absorption features in the near-UV region. The presence of these near-UV features allowed us to make the first observation of Fe=O vibrations of S = 1 mo...

متن کامل

Synthesis, stability and reactivity of the first mononuclear nonheme oxoiron(IV) species with monoamido ligation: a putative reactive species generated from iron-bleomycin.

The preparation and characterisation of an oxoiron(IV) species with monoamido ligation are described. Reactivity studies revealed the important role of the amido ligand in enhancing the ability of oxoiron(IV) complexes to promote hydrogen atom transfer from external alkanes.

متن کامل

Dioxygen activation and catalytic aerobic oxidation by a mononuclear nonheme iron(II) complex.

We have used dioxygen, not artificial oxidants such as peracids, iodosylarenes, and hydroperoxides, in the generation of a mononuclear nonheme oxoiron(IV) complex, [Fe(IV)(TMC)(O)]2+ (TMC = 1,4,8,11-tetramethyl-1,4,8,11-tetraazacyclotetradecane), from its corresponding Fe(II) complex, [Fe(TMC)(CF3SO3)2]. The formation of oxoiron(IV) species by activating dioxygen was markedly dependent on iron(...

متن کامل

Nonheme FeIVO complexes that can oxidize the C-H bonds of cyclohexane at room temperature.

Nonheme oxoiron(IV) complexes of two pentadentate ligands, N4Py (N,N-bis(2-pyridylmethyl)-bis(2-pyridyl)methylamine) and Bn-tpen (N-benzyl-N,N',N'-tris(2-pyridylmethyl)-1,2-diaminoethane), have been generated and found to have spectroscopic properties similar to the closely related tetradentate TPA (tris(2-pyridylmethyl)amine) complex reported earlier. However, unlike the TPA complex, the penta...

متن کامل

Mechanistic Insight into Alcohol Oxidation by High-Valent Iron-Oxo Complexes of Heme and Nonheme LigandsThis research was supported by the Ministry of Science and Technology of Korea through Creative Research Initiative Program.

High-valent iron–oxo species are frequently invoked as the key intermediates in the catalytic oxidation of organic substrates by heme and nonheme iron mono-oxygenases. In the case of heme-containing enzymes such as cytochromes P450, oxoiron(iv) porphyrin p-cation radicals have been proposed as active oxidants that effect a number of oxidation reactions, which include alkane hydroxylation, olefi...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • Chemical communications

دوره 11  شماره 

صفحات  -

تاریخ انتشار 2005