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Goodw T., Shasho, S., Yongsavanh, M., Echevarria, V., Tiedeken, J., Brown, C., Fromm, G., Lyerly, S., Watson, N., Long, A. and De Nitto, N. (2001) Structural and oxotransfer reactivity differences of hexacoordinate and pentacoordinate (nitro) (tetraphenylporphinato)cobalt(III) derivatives. Inorganic Chemistry, 40, 4217-4225. doi:10.1021/ic001442e

has been cited by the following article:

• TITLE: Synthesis, structural and spectroscopic characterization of the bis(nitrito-N) octaethylporphyrin cobalt(III) complex

  AUTHORS: Bader Belhaj Ali, Mohamed Salah Belkhiria, Michel Giorgi, Habib Nasri

  KEYWORDS: Cobalt(III) Porphyrin; X-Rays Diffraction; UV-Visible; 1H NMR

  JOURNAL NAME: Open Journal of Inorganic Chemistry, Vol.1 No.3, October 24, 2011

  ABSTRACT: The bis(nitrito-N) cobalt(III) octaethylporphyrin derivative with the formula [K(18-C-6)(NO2)0.5(H2O)0.5]2 [CoIII(OEP)(NO2)2] (1) (OEP = octaethylporphyrin and 18-C-6 is the crown ether18-crown-6) has been synthesized and characterized by UV-vis, IR and proton NMR spectroscopy which indicate, inter alia, that the cobalt ion presents the oxidation state III. The synthesis utilizes 18-crown-6 to solubilize potassium nitrite in the synthetic procedure. This compound crystallizes in the triclinic system, with the centric space group P-1 and the following unit cell parameters: 11.6724(2) Å, b = 12.5715(2) Å, c = 13.4722(3) Å, α = 101.1290(6)°, β = 106.6498(6)°, γ= 109.1507(6)°, Z = 1 and V = 1696.74(5) Å3. The crystal structure has been solved and refined to R = 0.0499 and R(w) = 0.1319. The X-rays molecular structure of 1 shows that there is a relatively close interaction of both two NO2- axial ligands of the ion complex [CoIII(OEP)(NO2)2]- with the potassium atoms of the two counterions [K(18-C-6) (NO2)0.5(H2O)0.5]0.5+. The title compound exhibits one-dimension polymer-like structure where “monomers” are linked together through strong O(H2O)—H…O(nitrito-O) hydrogen bonds.