Synthesis, crystal structures and spectroscopic properties of cobalt(II) complexes with chelating sulfonylamidophosphate ligands
| Autor: | Vladimir M. Amirkhanov, Olesia V. Moroz, Joachim Kusz, Kateryna O. Znovjyak, Maksym Seredyuk, Maria Nowak, Tetiana Yu. Sliva |
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| Rok vydání: | 2015 |
| Předmět: |
Absorption spectroscopy
Phenanthroline Organic Chemistry Thermal decomposition chemistry.chemical_element Crystal structure Analytical Chemistry Inorganic Chemistry Metal chemistry.chemical_compound Crystallography chemistry Octahedron visual_art visual_art.visual_art_medium Cobalt Single crystal Spectroscopy |
| Zdroj: | Journal of Molecular Structure. 1100:145-149 |
| ISSN: | 0022-2860 |
| Popis: | Two new cobalt(II) complexes with general formula Co(L1)2Phen (1) and Co(L2)2Phen (2), in which HL1 = dimethyl phenylsulfonylphosphoramidate and HL2 = dimethyl tosylphosphoramidate, were prepared in one-step synthesis and characterized by IR, UV-VIS spectroscopy, TGA-DTA and elemental analysis. Moreover, the single crystal structures of 1 and 2 were determined by single crystal X-ray diffractometry. Complexes consist of mononuclear units comprising two L1−(or L2−) and phenanthroline ligands bidentatly linked to metal ion. The UV-VIS spectra of complexes in the solid state show broad asymmetric band at 530 nm attributed to the d–d transition of the metal ion. Comparing of these spectra with the absorption spectra in acetone, octahedral environment of the cobalt(II) ion in solution were considered. The structural similarity of 1 and 2 leads to a similar thermal decomposition profile. |
| Databáze: | OpenAIRE |
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