Pregled bibliografske jedinice broj: 170396
Infrared and crystalogryphic study of complexation of N, N-dimethylformamide with racemic 1, 1'-bi-2-naphthol
Infrared and crystalogryphic study of complexation of N, N-dimethylformamide with racemic 1, 1'-bi-2-naphthol // Molecules Trapped in Solids / Bougeard, Daniel (ur.).
Dijon, Francuska, 2004. (poster, nije recenziran, sažetak, znanstveni)
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Naslov
Infrared and crystalogryphic study of complexation of N, N-dimethylformamide with racemic 1, 1'-bi-2-naphthol
Autori
Biliškov, Nikola ; Štefanić, Zoran ; Baranović, Goran
Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni
Izvornik
Molecules Trapped in Solids
/ Bougeard, Daniel - , 2004
Skup
Molecules Trapped in Solids - Summer School
Mjesto i datum
Dijon, Francuska, 13.09.2004. - 17.09.2004
Vrsta sudjelovanja
Poster
Vrsta recenzije
Nije recenziran
Ključne riječi
DIACETYLENIC DEHYDROBENZOANNULENE; IR spectroscopy
Sažetak
1, 1'-bi-2-naphthol (BINOL) is very important chemical in farmaceutical industry. It exists in two atropoisomeric forms, namely (+)-(R)-BINOL, and (-)-(S)-BINOL. It is found that satisfactory efficient separators of these atropoisomers are Pirkle-type chiral stationary phases based on (S)-leucine-N-(3, 5-dinitrobenzene). However, the mechanism of separation is not yet clear. It is obvios that BINOL forms hydrogen bonds with one or more sites of chiral stationary phase, and separation occurs when these hydrogen bond(s) orientate one atropoisomer of BINOL to position adequate for formation of intermolecular bond (probably π - π interaction) with another site (probably 3, 5-benzoyl group). Because of many possible binding sites at chiral stationary phase, it is better to study interactions of BINOL molecule with small molecules, which act as model compounds of sites with which BINOL interacts. The first molecule studied in this regard is N, N-dimethylformamide (DMF), which is model of amide sites of chiral stationary phase. In this work, we present the part of our investigation of DMF interaction with BINOL. DMF forms stable complex with BINOL in solutions, and it is found that both molecules co-crystalise from dichloromethane solution, as evident from FTIR spectra. Crystal structure of formed complex is found, and thermal decomposition of this complex in solid state is studied by FTIR spectroscopy.
Izvorni jezik
Engleski
Znanstvena područja
Kemija
