Right-handed 2/1 helical arrangement of benzene molecules in cholic acid crystal established by experimental and theoretical circular dichroism spectroscopy†
Abstract
The right-handed two-fold helical (2/1 helical) arrangement of benzene included in the cavity of cholic acid (CA) crystal was directly established by experimental and theoretical circular dichroism (CD) spectral studies. Experimental spectra comprised chirality elements of benzene and CA and well agreed with the theoretical spectra which considered interactions between benzene and polar groups of CA.