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 SM ISO690:2012PETRIC, M., CROITOR, Lilia, VLASE, Gabriela, VLASE, Titus, BOUROSH, Pavlina, KRAVTSOV, Victor, ILIA, Gheorghe, CRIŞAN, Manuela E.. Thermogravimetric and kinetic study of new bis(iminophosphorane)ethane clathrates. In: Book of Abstracts: of the 28th Symposium on Thermal Analysis and Calorimetry – Eugen Segal – of the Commission for Thermal Analysis and Calorimetry of the Romanian Academy (CATCAR28), Ed. 28, 9-10 mai 2019, Chişinău. România, Arad: Gutenberg Univers Arad Publishing House, 2019, p. 56. ISBN 978-606-675-208-4. |
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Simpozionul "28th Symposium on Thermal Analysis and Calorimetry – Eugen Segal – of the Commission for Thermal Analysis and Calorimetry of the Romanian Academy (CATCAR28) " 28, Chişinău, Moldova, 9-10 mai 2019 | ||||||
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Iminophosphoranes have attracted broad interest in recent years as promising precursors for cancer chemotherapeutics. Screening for different solid forms, new bis(iminophosphorane)ethane clathrates [1] with different solvents guest molecules were obtained. The crystal structures, thermal behaviour and kinetic study were investigated comparatively for acetonitrile (I), dimethyl sulfoxide (II), toluene (III) clathrates and its guest-free form (IV). Crystallographic data revealed that the solvent plays the role of space filler without forming strong interactions with host molecules. Bis(iminophosphorane)ethane with non-aromatic solvent guests and guestfree form crystallized in monoclinic C2/c (№15) space group, comparatively with toluene solvate which showed a triclinic P-1 (№2) space group. Thermal behaviour of I-III solvates studied by DSC and TG indicate similar pattern, suggesting similar mode of entrapment of solvent moleculesfigureFig.1 Crystal packing of new bis(iminophosphorane)ethane clathrates with solvent accessible voidsfigureFig.2 Thermoanalytical curves of new bis(iminophosphorane)ethane clathrates (I-IV) |
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