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Search for molecular crystals with NLO properties: 3-nitrophenol with nicotinamide and isonicotinamide.
Autorzy
Rok wydania
2013
Czasopismo
Journal of Molecular Structure
Numer woluminu
1047
Strony
310-316
DOI
10.1016/j.molstruc.2013.05.004
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
Two molecular complexes of amides (nicotinamide and isonicotinamide) with 3-nitrophenol are characterized by X-ray diffraction and spectroscopic studies. Crystal structure analyses at 100K revealed different features to distinguish the co-crystals. The asymmetric unit of the crystal structure of nicotinamide–3-nitrophenol (1:1), 1, consists of two symmetry-independent nicotinamide molecules and two symmetry-independent 3-nitrophenol molecules. The crystal structure of 1 displays an extended hydrogen bond network generated by OH⋯O, NH⋯O and NH⋯N interactions. The structure of isonicotinamide–3-nitrophenol (1:1), 2, contains OH⋯N hydrogen bonds engaging the pyridine N atom. In 2, the amide forms a R₂ ²(8) homodimer which is absent in 1. The complex 1 shows relatively efficient second harmonic frequency generation.
Słowa kluczowe
Nicotinamide, isonicotinamide, 3-nitrophenol, Hydrogen bond, SHG
Adres publiczny
http://dx.doi.org/10.1016/j.molstruc.2013.05.004
Strona internetowa wydawcy
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