Solid-state linear-dichroic IR-spectroscopy of isophorone derivatives with potential non-linear optical application.
Possibilities of linear-dichroic infrared (IR-LD) spectroscopy based on oriented solid samples as suspension in nematic liquid crystal have been applied for detailed experimental IR-band assignment and structural information of 2-[5,5-dimethyl-3-(2-phenyl-vinil)-cyclohex-2-enylidene]-malononitrile, 2-[5,5-dimethyl-3-[2-(2-methoxyphenyl)vinyl]cyclo-hex-2-enylidene]malononitrile and 2-[3-[2-(2,4-dimethoxyphenyl)vinyl]-5,5-dimethylcyclohex-2-enylidene]malononitrile. The data of last two compounds have been compared with known crystallographic ones, thus determining the validity of conclusions made.
Ivanova
Bojidarka B
BB
Sofia University St. Kl. Ohridski, Faculty of Chemistry, 1164 Sofia, Bulgaria. ahbi@chem.uni-sofia.bg
D003512:Cyclohexanones / Q000737:chemistry*; D008954:Models, Biological; D008958:Models, Molecular; D008968:Molecular Conformation; D013055:Spectrophotometry, Infrared / Q000379:methods*; D013057:Spectrum Analysis
D003512:Cyclohexanones; C005940:isophorone