A. Boukhris, C. Lecomte, A. Coutsolelos
Apr 8, 1986
Citations
0
Influential Citations
11
Citations
Journal
Journal of Organometallic Chemistry
Abstract
Abstract The insertion of sulfur dioxide into the alkyl-gallium bond of gallium(III) porphyrins [Ga(Por)R] gives rise to sulfinato compounds which can easily be oxidized to the corresponding sulfonato complexes. The latter are also generated by acidic hydrolysis of the GaCl bond of chlorogallium(III) porphyrins [Ga(Por)Cl] by the appropriate sulfonic acid. The obtained derivatives are characterized on the basis of mass spectrometry, 1H NMR, and UV-visible data. The crystal structure of [Ga(OEP)(SO3CH3)] (OEP=2,3,7,8,12,13,17,18-octaethylporphyrinato) has been determined by X-ray diffraction methods. The crystals are monoclinic, space group P21/c, with a 14.08(2), b 16.129(9), c 19.274(3) A, β 126.05(1), and Z = 4. The structure has been solved by the heavy atom method and refined to an R index of R(F) = 0.0635 and RW(F) = 0.0615 with the SHELX Program. The gallium atom is five-coordinated by the four nitrogen atoms of the porphyrin and one oxygen atom of the sulfonato group (GaO(1) 1.908(6) A).