Air oxidation of Ir2(Cl)2(COD)2 revisited. The structures of [Ir(μ2-Cl)(COD)]2(ruby form) and its oxidation product, Ir2Cl2(COD)2(μ2-OH)2(μ2-O)
| Autor: | P. Lahuerta, M. Sanau, F. Albert Cotton, Willi Schwotzer |
|---|---|
| Rok vydání: | 1986 |
| Předmět: |
chemistry.chemical_classification
Chemistry Stereochemistry Chlorine atom Crystal structure Inorganic Chemistry Metal Bond length Crystallography visual_art X-ray crystallography Materials Chemistry visual_art.visual_art_medium Molecule Orthorhombic crystal system Physical and Theoretical Chemistry Inorganic compound |
| Zdroj: | Inorganica Chimica Acta. 120:153-157 |
| ISSN: | 0020-1693 |
| DOI: | 10.1016/s0020-1693(00)86102-2 |
| Popis: | The reaction of [Ir(COD)(μ2-Cl)]2 (ruby form) (1) with air in CH2Cl2 solution affords in moderate yield a dinuclear complex of Ir(III), Ir2(COD)2Cl2(μ2-OH)2- (μ2-O)·CH2Cl2 (2). The compound 1 crystallizes in the orthorhombic space group Pbca with a = 13.631- (4), b = 16.297(5), c = 15.163(4) A, V = 3368(3) A3, Z = 8. It is a binuclear complex of It(I) with square- planar metal coordination. The two squares share the edge defined by the chlorine atoms. The angle between those planes is 86°. The Cl bridges are symmetrical with a mean ItCl bond length of 2.40114] A. The Ir··Ir distance is 2.910(1) A. Compound 2 crystallizes in the orthorhombic space group Cmcm with cell dimensions a = 17.022(4), b = 12.382(5), c = 10.201(4) A, V = 2150(2) A3, Z = 4. The binuclear molecular complex has a face- sharing bioctahedral configuration with two hydroxyl and one oxo bridging groups. The Ir··Ir distance is 2.868(1) A. |
| Databáze: | OpenAIRE |
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