Synthesis and structure of aminocarboxylato(1,4-diaminobutane)dinitrocobalt(III) complexes. Crystal and molecular structure of the δ-(—)589- CIS(NO2)trans(NH2)-(R-alaninato)(1,4-diaminobutane)dinitrocobalt(III) diastereomer
| Autor: | M.J. Malinar, B. Prelesnik, M.B. Ćelap, Rajna Herak |
|---|---|
| Rok vydání: | 1992 |
| Předmět: |
Absorption spectroscopy
010405 organic chemistry Chemistry Stereochemistry Diastereomer Crystal structure 010402 general chemistry 01 natural sciences 0104 chemical sciences Inorganic Chemistry chemistry.chemical_compound Paper chromatography Diamine X-ray crystallography Materials Chemistry Nitro Molecule Physical and Theoretical Chemistry |
| Zdroj: | Polyhedron. 11:1169-1175 |
| ISSN: | 0277-5387 |
| DOI: | 10.1016/s0277-5387(00)86924-7 |
| Popis: | The preparation of the trans(NO2) and cis (NO2),trans(NH2) isomers of the (1,4- diaminobutane)(glycinato)dinitrocobalt(III) complex, as well as trans(NO2), δ-(—)589-cis (NO2),trans(NH2) and λ-(+)589-cis (NO2),trans(NH2) isomers of the (R-alaninato) (1,4-di- aminobutane)dinitrocobalt(III) complex, is described. These substances were obtained in the reaction of sodium hexanitrocobaltate(III) with 1,4-diaminobutane and the corresponding amino acid. The separation of the isomers was performed on an anionic Dowex 1-X4 column. The composition of the isolated substances was determined by elemental microanalysis. The position of the nitro groups in the substances obtained was determined from their electronic absorption spectra in the UV region and by paper chromatography. The X-ray crystal structure of the δ-(—)589-cis(NO2),trans(NH2)-(R-alaninato)(1,4-diamino-butane) dinitrocobalt(III) diastereomer was established and the arrangement of ligands in other isomers prepared was established by comparing their electronic absorption spectra with the alaninato diastereomer. |
| Databáze: | OpenAIRE |
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