Reactions of collman complex with tin(IV) and germanium(IV) porphyris,formation of [tin(II) and germanium(II) porphyrins] tetracarbonyliron and crystal structure of [2,3,7,8,12,13,17,18-octaethylporphinato tin(II)] tetracarbonyliron |
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Authors: | Jean-Michel Barbe Roger Guilard Claude Lecomte Rene Gerardin |
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Affiliation: | 1. Laboratoire de Synthèse et d''Electrosynthèse Organométallique associé au C.N.R.S. (LA 33), Faculté des Sciences “Gabriel”, 6, Bd Gabriel, 21100 Dijon, France. |
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Abstract: | The action of Na2Fe(CO)4 with tin(IV) and germanium(IV) porphyrins affords metal(II) porphyrin complexes [(por)M(II)Fe(CO)4] (por = porphyrinate, M - Sn(II) or Ge(II)). The molecular structure of [(oep)Sn(II)Fe(CO)4] was solved by X-ray diffraction techniques. The molecular structure of [(oep)Sn(II)Fe(CO)4] was solved by X-ray diffraction techniques : the Sn coordination is square pyramidal with the iron in axial position (Sn-Fe = 2.492(1)Å) whereas the Fe coordination is trigonal bipyramidal. Mössbauer parameters provide convincing evidence for the formal zero oxidation state of the iron atom. |
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Keywords: | Author to whom correspondence should be addressed. |
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