Fig. 5. (a) Photographs for the gelation behavior of Frac. 3–1 and Frac. 3–2 in chloroform. Insert chemical structure is tri(PAAm) with absolute configuration “Ra, Sc, Se”. (b) Elucidation of the absolute configuration of Frac. 3–1 by comparison of the calculated ECD spectrum (black line) with the experimentally measured CD spectrum (blue line).
