Solution Conformation of Two C2-Symmetric Amino Derivatives of 1,1'-Binaphthalene by Circular Dichroism and Liquid Crystal Technique

Article abstract of DOI:10.1021/jo00051a028

The solution conformation of two C₂-symmetric 1,1'-binaphthyl compounds (N,N,N',N'-tetramethyl-<1,1'-binaphthalene>-2,2'-diamine (1) and N,N'-dimethyl-<1,1'-binaphthalene>-2,2'-diamine (2)) has been studied by MMX calculations, analysis of the adsorption and CD spectra, and induction of cholesteric mesophases in nematic liquid crystals.All these methods indicate that 1 prefers a cisoid conformation and that 2 assumes a conformation where the two naphthyl moieties are quasi-perpendicular.