Conţinutul numărului revistei |
Articolul precedent |
Articolul urmator |
198 0 |
SM ISO690:2012 DRAGUTA, Sergiu, FONARI, Marina, AUTOR, Nou, TIMOFEEVA, Tatiana. New organic binary solids with phenolic coformers for NLO applications. In: Journal of Molecular Structure, 2015, vol. 1098, pp. 206-215. ISSN 0022-2860. DOI: https://doi.org/10.1016/j.molstruc.2015.06.003 |
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Journal of Molecular Structure | ||||||
Volumul 1098 / 2015 / ISSN 0022-2860 | ||||||
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DOI:https://doi.org/10.1016/j.molstruc.2015.06.003 | ||||||
Pag. 206-215 | ||||||
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Rezumat | ||||||
Five binary adducts between N,N-dimethyl-4-[(E)-2-(pyridin-4-yl)ethenyl]aniline) 1, N,N-diethyl-4-[(E)-2-(pyridin-4-yl)ethenyl]aniline) 2, N,N-dimethyl-4-[(E)-pyridin-3-yldiazenyl]aniline 3, and coformers that include 4-nitrophenol I, 4-nitrobenzoic acid II, benzene-1,3-diol III, and 2,4-dinitrophenol IV were synthesized to follow the factors influencing the formation of polar crystals. New solids were characterized by melting points and absorption spectra, while their structures were proven by single crystal X-ray diffraction. Adducts differ by the components' ratio and position of the acidic hydrogen atom, thus giving examples of four new cocrystals and one salt. The single crystal X-ray analysis revealed the acentric packing for two compounds, 1 (I) and 3(3) (III) that crystallize in the Pca21 and P1 space groups. The melting point data and the cut-off wavelength from absorption spectra show that these materials are stable till relatively high temperatures and transparent in a wide range of spectrum. |
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Cuvinte-cheie Chromophore, cocrystal, Non-linear optics, spectroscopy, X-ray study |
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