caa a22 4500 463189434 CHVBK 20180406164904.0 cr unu---uuuuu 170326e20071001xx s 000 0 eng 10.1007/s10973-006-7694-z doi (NATIONALLICENCE)springer-10.1007/s10973-006-7694-z Phase transition and thermal decomposition of [Al(DMSO)6]Cl3 [Elektronische Daten] [A. Migdał-Mikuli, N. Górska, E. Szostak] Phase transition and thermal decomposition of hexadimethylsulfoxidealuminium chloride were studied by differential scanning calorimetry (DSC), thermogravimetry (TG) and simultaneous differential thermal analysis (SDTA). The gaseous products of the decomposition were on-line identified by a quadrupole mass spectrometer (QMS). In the temperature range of 95-300 K, [Al(DMSO)6]Cl3 indicates one phase transition at T c h =244.96 K (on heating) and at T c c =220.87 K (on cooling). Large thermal hysteresis of the phase transition (∼24 K) indicates its first order character. Large value of transition entropy (ΔS≈40 J mol−1 K−1) suggests its configurational character. Thermal decomposition of the title compound proceeds in four main stages. In the first stage, which starts just above ca. 300 K, the compound loses two DMSO molecules per one formula unit and undergoes into [Al(DMSO)4]Cl3. In the second stage, the next three DMSO ligands are released and simultaneously decomposed. The third stage, which continues up to ca. 552 K, is connected with a loss of the last DMSO ligand and the formation of AlCl3. In the fourth stage AlCl3 reacts with carbon monoxide that originates from the decomposition of DMSO, and first aluminium oxychloride and next solid Al2O3 plus carbon are created. Springer Science+Business Media, LLC., 2007 DSC nationallicence hexadimethylsulfoxidealuminium chloride nationallicence phase transition nationallicence SDTA nationallicence TG/QMS nationallicence thermal decomposition nationallicence Migdał-Mikuli A. Faculty of Chemistry, Jagiellonian University, Ingardena 3, 30-060, Cracow, Poland aut Górska N. Faculty of Chemistry, Jagiellonian University, Ingardena 3, 30-060, Cracow, Poland aut Szostak E. Faculty of Chemistry, Jagiellonian University, Ingardena 3, 30-060, Cracow, Poland aut Journal of Thermal Analysis and Calorimetry Springer US; http://www.springer-ny.com 90/1(2007-10-01), 223-228 1388-6150 90:1<223 2007 90 10973 https://doi.org/10.1007/s10973-006-7694-z text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10973-006-7694-z text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Migdał-Mikuli A. Faculty of Chemistry, Jagiellonian University, Ingardena 3, 30-060, Cracow, Poland aut NATIONALLICENCE 700 1- Górska N. Faculty of Chemistry, Jagiellonian University, Ingardena 3, 30-060, Cracow, Poland aut NATIONALLICENCE 700 1- Szostak E. Faculty of Chemistry, Jagiellonian University, Ingardena 3, 30-060, Cracow, Poland aut NATIONALLICENCE 773 0- Journal of Thermal Analysis and Calorimetry Springer US; http://www.springer-ny.com 90/1(2007-10-01), 223-228 1388-6150 90:1<223 2007 90 10973 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer