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Pregled bibliografske jedinice broj: 693791

Multiple solid forms of 1, 5-bis(salicylidene)carbohydrazide : polymorph-modulated thermal reactivity


Rubčić, Mirta; Galić, Nives; Halasz, Ivan; Jednačak, Tomislav; Judaš, Nenad; Plavec, Janez; Šket, Primož; Novak, Predrag
Multiple solid forms of 1, 5-bis(salicylidene)carbohydrazide : polymorph-modulated thermal reactivity // Crystal growth & design, 14 (2014), 6; 2900-2912 doi:10.1021/cg500203k (međunarodna recenzija, članak, znanstveni)


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Naslov
Multiple solid forms of 1, 5-bis(salicylidene)carbohydrazide : polymorph-modulated thermal reactivity

Autori
Rubčić, Mirta ; Galić, Nives ; Halasz, Ivan ; Jednačak, Tomislav ; Judaš, Nenad ; Plavec, Janez ; Šket, Primož ; Novak, Predrag

Izvornik
Crystal growth & design (1528-7483) 14 (2014), 6; 2900-2912

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
carbohydrazide; polymorphs; thermogravimetric analyses; temperature-resolved powder X-ray diffraction

Sažetak
1, 5-Bis(salicylidene)carbohydrazide, prepared by a condensation reaction of salicylaldehyde and carbohydrazide, afforded a diversity of crystalline forms depending on the crystallization conditions: three polymorphs (I, II, III) and two solvates (IV and V). All solid phases comprise the same tautomer of the title compound, which bears the salicylidene residues in the enol-imino form and the carbamide fragment in the keto form, as established via X-ray crystallography, IR spectroscopy and CP MAS NMR (13C and 1H). Conformations of 1, 5-bis(salicylidene)carbohydrazide molecules and their hydrogen bonding patterns are similar for two polymorphs (II and III), while the third one (I) in this context differs significantly. Thermal analyses revealed that all phases undergo complicated degradation upon heating yielding salicylideneazine, CO2 and N2 either directly or via intermediates. Relative phase stability was inspected mechanochemically and by solvent mediated experiments, establishing polymorph II as the stable one at ambient conditions. NMR and UV-Vis solution studies revealed that the same tautomer of 1, 5-bis(salicylidene)carbohydrazide present in the solid state is also the dominant one in solution.

Izvorni jezik
Engleski

Znanstvena područja
Kemija



POVEZANOST RADA


Projekti:
098-0982904-2953 - Studij utjecaja svojstava alumosilikatnih prekursora na njihove transformacije (Bronić, Josip, MZOS ) ( POIROT)
119-1191342-1082 - Novi kompleksni spojevi i materijali-kemijski i biološki katalizatori (Cindrić, Marina, MZOS ) ( POIROT)
119-1191342-1083 - Interakcije i dizajn bioaktivnih molekula (Novak, Predrag, MZOS ) ( POIROT)
119-1193079-1084 - Strukturno istraživanje bioloških makromolekula metodom rentgenske difrakcije (Matković-Čalogović, Dubravka, MZOS ) ( POIROT)

Ustanove:
Institut "Ruđer Bošković", Zagreb,
Prirodoslovno-matematički fakultet, Zagreb

Profili:

Avatar Url Ivan Halasz (autor)

Avatar Url Tomislav Jednačak (autor)

Avatar Url Nenad Judaš (autor)

Avatar Url Mirta Rubčić (autor)

Avatar Url Predrag Novak (autor)

Avatar Url Nives Galić (autor)

Poveznice na cjeloviti tekst rada:

doi pubs.acs.org pubs.acs.org

Citiraj ovu publikaciju:

Rubčić, Mirta; Galić, Nives; Halasz, Ivan; Jednačak, Tomislav; Judaš, Nenad; Plavec, Janez; Šket, Primož; Novak, Predrag
Multiple solid forms of 1, 5-bis(salicylidene)carbohydrazide : polymorph-modulated thermal reactivity // Crystal growth & design, 14 (2014), 6; 2900-2912 doi:10.1021/cg500203k (međunarodna recenzija, članak, znanstveni)
Rubčić, M., Galić, N., Halasz, I., Jednačak, T., Judaš, N., Plavec, J., Šket, P. & Novak, P. (2014) Multiple solid forms of 1, 5-bis(salicylidene)carbohydrazide : polymorph-modulated thermal reactivity. Crystal growth & design, 14 (6), 2900-2912 doi:10.1021/cg500203k.
@article{article, year = {2014}, pages = {2900-2912}, DOI = {10.1021/cg500203k}, keywords = {carbohydrazide, polymorphs, thermogravimetric analyses, temperature-resolved powder X-ray diffraction}, journal = {Crystal growth and design}, doi = {10.1021/cg500203k}, volume = {14}, number = {6}, issn = {1528-7483}, title = {Multiple solid forms of 1, 5-bis(salicylidene)carbohydrazide : polymorph-modulated thermal reactivity}, keyword = {carbohydrazide, polymorphs, thermogravimetric analyses, temperature-resolved powder X-ray diffraction} }
@article{article, year = {2014}, pages = {2900-2912}, DOI = {10.1021/cg500203k}, keywords = {carbohydrazide, polymorphs, thermogravimetric analyses, temperature-resolved powder X-ray diffraction}, journal = {Crystal growth and design}, doi = {10.1021/cg500203k}, volume = {14}, number = {6}, issn = {1528-7483}, title = {Multiple solid forms of 1, 5-bis(salicylidene)carbohydrazide : polymorph-modulated thermal reactivity}, keyword = {carbohydrazide, polymorphs, thermogravimetric analyses, temperature-resolved powder X-ray diffraction} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


Citati:





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