Thermal decomposition of new ruthenium(II) complexes containing N-alkylphenothiazines |
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| Authors: | Berta Holló Milena Krstić Sofija P. Sovilj György Pokol Katalin Mészáros Szécsényi |
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| Affiliation: | 1.Faculty of Science,University of Novi Sad,Novi Sad,Serbia;2.Faculty of Veterinary Medicine,University of Belgrade,Belgrade,Serbia;3.Faculty of Chemistry,University of Belgrade,Belgrade,Serbia;4.Institute for General and Analytical Chemistry,Budapest University of Technology and Economics,Budapest,Hungary |
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| Abstract: | Thermal decomposition of chlorpromazine hydrochloride (CP·HCl), trifluoperazine dihydrochloride (TF·2HCl) and thioridazine hydrochloride (TR·HCl), and the ruthenium complexes with dimethyl sulfoxide (dmso) of composition [RuCl2(dmso)4] and L[RuCl3(dmso)3]·xEtOH, L = CP·HCl, TF·2HCl or TR·HCl is described. The phenothiazines are stable to temperature range of 200–280 °C with an increasing stability order of TF·2HCl < CP·HCl < TR·HCl. The decomposition of all the compounds takes place in superposing steps. For detection of chlorides and sulfides, EGD analysis was performed. The decomposition pattern of the complexes, due to their similar structure, is similar. The thermal data unambiguously resolve the contradiction between the elemental analysis and X-ray structural data for (TF·2HCl)[RuCl3(dmso)3]Cl·EtOH. The compound crystallizes with one EtOH, evaporating in part at room temperature. |
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