Line Plot from Scientific Research

A comparison of partial solution 1 H NMR spectra (CDCl 3 , 298 K) shows the reduced symmetry of the chiral 9-BB motif: top, 3 (700 MHz); middle, ( R )/( S )- 1 (600 MHz); bottom, ( R , S )/( S , S )- 2 (600 MHz). Resonances are labelled according to the numbering in Fig. 2 .

DOI