Derivative chemistry of metallocarboranes. Nido 11-atom metallocarboranes and their Lewis base adducts
| العنوان: | Derivative chemistry of metallocarboranes. Nido 11-atom metallocarboranes and their Lewis base adducts |
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| المؤلفون: | James N. Francis, M. Frederick Hawthorne, Christopher J. Jones |
| المصدر: | Journal of the American Chemical Society. 95:7633-7643 |
| بيانات النشر: | American Chemical Society (ACS), 1973. |
| سنة النشر: | 1973 |
| مصطلحات موضوعية: | Stereochemistry, Protonation, General Chemistry, Biochemistry, Medicinal chemistry, Catalysis, Adduct, chemistry.chemical_compound, Colloid and Surface Chemistry, chemistry, Pyridine, Moiety, Molecule, Piperidine, Lewis acids and bases, Group 2 organometallic chemistry |
| الوصف: | The reaction between X(1-(eta-C5H5)-2,4,1-C2CoB8H10) or X(1,2-C2B9H11-3,1'-Co-2',4'-C2B8H10)(-1) and pyridine affords the nido-adducts X(9-(eta-C5H5)-11-C5H5N-7,8,9-C2CoB8H10) and X(1,2-C2B9H11-3,9'-Co-11'-C5H5N-7',8'-C2B8H10)(-1) respectively. Oxidation of these species with FeCl3 affords the substituted closo-compounds. Analogous compounds were prepared from X(1-(eta-C5H5)-2,4,1-C2CoB8H10) with piperidine in place of pyridine. The unsubstituted nido-metallocarboranes X(9-(eta-C5H5)-7,8,9-C2CoB8H11)(-1) and X(1,2-C2B9H11-3,9'-Co-7',8'-C2B8H11)(-2) were prepared by degradation of the icosahedral compounds (3-(eta-C5H5)1,2,3-C2CoB9H11) and (1,2-C2B9H11-3,3'-Co-1',2'-C2B9H11)(-1). These compounds could be reversibly protonated to give X(9-(eta-C5H5)-7,8,9-C2CoB8H12) and X(1,2-C2B9H11-3,9'-Co-7',8'-C2CoB8H12)(-1) which eliminate hydrogen on heating. The chemical changes resulting from the replacement of a polyhedral (BH)(+2) moiety by ((eta-C5H5)Co)(+2) or (1,2,3-C2CoB9H11)(+2) are discussed. (Modified author abstract) |
| تدمد: | 1520-5126 0002-7863 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::ed3d23cbf39a0f65f4e8d1d1b166d282 https://doi.org/10.1021/ja00804a016 |
| رقم الأكسشن: | edsair.doi...........ed3d23cbf39a0f65f4e8d1d1b166d282 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 15205126 00027863 |
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