Reversible dioxygen binding on asymmetric dinuclear rhodium centres.

نویسندگان

  • Takayuki Nakajima
  • Miyuki Sakamoto
  • Sachi Kurai
  • Bunsho Kure
  • Tomoaki Tanase
چکیده

Electron-deficient dinuclear rhodium complexes [Rh2Cl2(μ-dpmppp)(RNC)] (1), with the linear tetraphosphine ligand dpmppp, showed reversible binding of molecular oxygen to form asymmetric dirhodium η(2)-peroxo complexes [Rh2Cl2(O2)(μ-dpmppp)(RNC)] (2) stabilized by a Rh→Rh dative bond.

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

Polymer-supported metal complex oxidation catalysts

Bbstract Recent developments involving polymer-supported metal complexes as catalysts in oxidation reactions, using dioxygen, hydrogen peroxide, alkyl hydroperoxides, hypochlorite anion and iodosobenzene as oxidants are reviewed. binding of dioxygen, and in catalysis, along with the structurally closely related metallo-phthalocyanines, oxidative polymerization catalysed by polymer-supported cop...

متن کامل

Dinuclear rhodium(1) complexes for the selective hydroformylation of alkenes using either CO/H2 or CO/H20

The dinuclear rhodium(1) R ~ ~ ( P S R ) ~ ( C O ) ~ L ~ complexes have been designed for the low pressure hydroformylation of vario s alkenes. The reaction is fully selective in aldehydes and turnover frequencies as high as 1 s ~ can be reached. A catalytic cycle in which all the intermediates remain dinuclear is consistent with the observed data and involves a cooperative effect between the t...

متن کامل

Four-electron reduction of dioxygen catalysed by dinuclear cobalt complexes bridged by bis(terpyridyl)anthracene.

Dinuclear cobalt-1,10-phenanthroline (1) and 2,2'-bipyridine (2) complexes bridged by 1,8-bis(2,2':6',2''-terpyrid-4'-yl)anthracene (btpyan) were prepared. Both of the complexes selectively catalysed the electrochemical four-electron reduction of dioxygen to H2O without the generation of H2O2 as a two-electron reduction product.

متن کامل

Aerobic oxidative N-dealkylation of tertiary amines in aqueous solution catalyzed by rhodium porphyrins.

Aerobic oxidative N-dealkylation of a variety of aliphatic tertiary amines and anilines catalyzed by rhodium(III) tetra (p-sulfonatophenyl) porphyrin ((TSPP)Rh(III)) is achieved in aqueous solution using dioxygen as the sole oxidant.

متن کامل

The Reaction Mechanism of the Partial Oxidation of Methane to Synthesis Gas: A Transient Kinetic Study over Rhodium and a Comparison with Platinum

The partial oxidation of methane to synthesis gas over rhodium sponge has been investigated by admitting pulses of pure methane and pure oxygen as well as mixtures of methane and oxygen to rhodium sponge at temperatures from 873 to 1023 K. Moreover, pulses of oxygen followed by methane and vice versa as well as pulses of mixtures of methane and labelled oxygen were applied to study the role of ...

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 49 46  شماره 

صفحات  -

تاریخ انتشار 2013