Thermal properties of volatile ruthenium(III) complexes |
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| Authors: | Kseniya V Zherikova Ludmila N Zelenina Natalia B Morozova Tamara P Chusova |
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| Institution: | 1. Nikolaev Institute of Inorganic Chemistry SB RAS, Lavrentiev av., 3, 630090, Novosibirsk, Russia
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| Abstract: | Complexes of ruthenium(III) with the following beta-diketone derivatives: 2,4-pentanedione (Ru(acac)3), 1,1,1,6,6,6-hexafluoro-2,4-pentanedione (Ru(hfac)3), and 2-methoxy-2,6-dimethyl-3,5-heptanedione (Ru(mdhd)3) were synthesized, purified, and identified by chemical analysis and melting points. By difference-scanning calorimetry (DSC) in vacuum the thermodynamic characteristics of melting processes were defined. Using the static method with quartz membrane zero-manometer, the temperature dependencies of saturated and unsaturated vapor pressure were obtained for Ru(hfac)3. The standard thermodynamic characteristics of vaporization processes enthalpy ?H T* and entropy ?S° T* were determined. |
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