Repozytorium
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Kolekcje
Inne
Aggregation of N, N'-diallylurea and N, N'-diallylthiourea in solutions.
Autorzy
Rok wydania
2017
Czasopismo
Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy
Numer woluminu
186
Strony
112-119
DOI
10.1016/j.saa.2017.05.069
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
Joint studies by IR spectroscopy, dipole moments, average molecular weight measurements and DFT calculations on the self-aggregation of N,N′-diallylureas and N,N′-diallylthioureas in solvents of different polarities were performed.
Simultaneous uses of all these methods are required for better understanding the mechanism of aggregation and the effects of different polarity of solvents. In this study also the measurements of IR spectra in polarized light were additionally performed, which gives information on arrangement of aggregates in liquid crystal matrix—built of 4-CN biphenyl derivative. It was demonstrated that in such conditions two forms of dimers the linear and cyclic ones are in equilibrium with different arrangements according the axis of CN group.
Słowa kluczowe
Self-association constants, Dipole moments, Polarized IR-LD spectra, N,N′-diallylurea, N,N′-diallylthiourea
Adres publiczny
http://dx.doi.org/10.1016/j.saa.2017.05.069
Strona internetowa wydawcy
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