| Autor: | Narumi Sakagami, Atsushi Iino, Blaga Stojčeva-Radovanović, Vitko M Ristanović, Anita D. Todorovska, Sumio Kaizaki, Dušan J. Radanović |
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| Rok vydání: | 1999 |
| Předmět: |
Absorption spectroscopy
Chromate conversion coating Sodium Inorganic chemistry Metals and Alloys chemistry.chemical_element Ethylenediamine Medicinal chemistry Inorganic Chemistry chemistry.chemical_compound Chromium chemistry Materials Chemistry Carboxylate Organometallic chemistry Cis–trans isomerism |
| Zdroj: | Transition Metal Chemistry. 24:403-408 |
| ISSN: | 0340-4285 |
| DOI: | 10.1023/a:1006930006026 |
| Popis: | New hexadentate chromium(III) complexes containing unsymmetrical edta-type ligands, ethylenediamine-N,N,N′-triacetate-N′-3-propionate ion (ed3ap) and ethylenediamine-N-diacetate-N′-di-3-propionate ion (μ-eddadp), have been prepared, chromatographically separated and characterized. Only one [trans-(O5)] of two geometrical isomers of the [Cr(ed3ap)]− complex (1) was isolated. No similar variation is possible for the hexadentate [Cr(μ-eddadp)]− complex (2). I.r. (carboxylate region), deuteron n.m.r., magnetic circular dichroism (m.c.d.) and electronic absorption spectra were used to assign the complexes. Spectral data are discussed by comparison with those of other [Cr(edta-type)]− complexes of known configuration. |
| Databáze: | OpenAIRE |
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