Two-stage thermal decomposition of 18-crown-6 and dicyclohexano-18-crown-6 complexes with alkaline earth metal halides as evidence for non-equivalence of macrocycle symmetry

Thermal stability of macrocyclic complexes with alkaline earth metal salts is of crucial importance for their applicability as the components of new electrolytes, ionic liquids and precursors in chemical vapor deposition processes. The complexes of 18-crown-6 and stereoisomeric dicyclohexano-18-crow...

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Veröffentlicht in:	Journal of thermal analysis and calorimetry 2023-11, Vol.148 (21), p.11641-11651
Hauptverfasser:	Zakurdaeva, Olga A., Kuchkina, Irina O., Kurkin, Tikhon S., Nesterov, Sergey V.
Format:	Artikel
Sprache:	eng
Schlagworte:	Alkaline earth metals Analytical Chemistry Calcium chloride Calcium ions Cations Chemical vapor deposition Chemistry Chemistry and Materials Science Crown ethers Earth Electrolytes Equivalence Halides High temperature Inorganic Chemistry Ionic liquids Measurement Science and Instrumentation Metal halides Physical Chemistry Polymer Sciences Symmetry Thermal decomposition Thermal stability
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Zusammenfassung:	Thermal stability of macrocyclic complexes with alkaline earth metal salts is of crucial importance for their applicability as the components of new electrolytes, ionic liquids and precursors in chemical vapor deposition processes. The complexes of 18-crown-6 and stereoisomeric dicyclohexano-18-crown-6 with alkaline earth metal halides were synthesized and studied by the combination of simultaneous DSC/TGA and FTIR-spectroscopy. The stability of these compounds depended on the size of the cation and anion as follows: Ba 2+
ISSN:	1388-6150 1588-2926
DOI:	10.1007/s10973-023-12470-0