Cyclic voltammetric and fiber-optic infrared spectroelectrochemical studies of six-coordinate (por)Ru(NO)Cl compounds (por = porphyrinato dianion)

Mona A. El-Attar, Nan Xu, Dennis Awasabisah, Douglas R. Powell, George B. Richter-Addo

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10 Scopus citations

Abstract

The redox behavior of representative (por)Ru(NO)Cl complexes (por = OEP, T(p-OMe)PP, T(p-CF 3)PP) have been obtained. The compounds possess linear RuNO moieties as exemplified by the X-ray crystal structure of (T(p-OMe)PP)Ru(NO)Cl (Ru-N-O = 174(2)°, Ru-N(O) = 1.790(17) Å, Ru-Cl = 2.220(6) Å). The first electrooxidations of the (por)Ru(NO)Cl compounds in CH 2Cl 2 occur in the order OEP (+0.51 V) < T(p-OMe)PP (+0.57 V) < T(p-CF 3)PP (+0.84 V) (versus Fc/Fc +). We have utilized infrared reflectance spectroelectrochemistry to determine that the first oxidations are porphyrin centered. In addition, the reductions are largely RuNO centered.

Original languageEnglish (US)
Pages (from-to)105-109
Number of pages5
JournalPolyhedron
Volume40
Issue number1
DOIs
StatePublished - Jun 19 2012

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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