Synthesis and Molecular Structure of a Nitrido(porphyrinato)chromium(V) Complex

John T. Groves, Tadashi Takahashi, William M. Butler

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103 Scopus citations

Abstract

Irradiation of solutions of azido(5,10,15,20-tetra-p-tolylporphyrinato)chromium(III) in methylene chloride or benzene gave nitrido(5,10,15,20-tetra-p-tolylporphyrinato)chromium(V) (1) in yields of 59% and 82%, respectively. Solutions of 1 showed well-resolved EPR spectra at room temperature (g = 1.985, Anc, = 2.85 mT, /1N = 0.279 mT). The IR spectra of nitrido(5,10,15,20-tetra-p-tolylporphyrinato)chromium(V) (1) and 1-15/V showed bands at 1017 and 991 cm”1, which were assigned to yCl=i4N and vCi=i5Ni respectively. The molecular structure of 1-C6H6 indicated a chromium-nitrogen distance of 1.565 Á, with the chromium 0.42 Á above the mean plane of the pyrrole nitrogens. The periphery of the porphyrin ring was saddle-shaped with excursions 0.56 Á below and 0.29 Á above the plane of the pyrrole nitrogens.

Original languageEnglish (US)
Pages (from-to)884-887
Number of pages4
JournalInorganic Chemistry
Volume22
Issue number6
DOIs
StatePublished - Mar 1983
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry

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