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, As reported in reference 7, glum values of +/-1.2 x 10 -3 were determined for A1 using a homemade CPL spectrophotometer. Using a commercially available CPL spectrophotometer

, for molecule A1, B1 and C'3 no appreciable chiroptical properties amplification was found in thin film (measuring CPL responses of pure thin films fabricated by spin coating or thermal evaporating method). In our hands, glum values of compounds R/S-BN-DCB described in reference 8a) in diluted toluene solution (C = 10 -5 ) and in pure thin film (fabricated using thermal evaporating method) were found to be, By contrast with the results described in reference 8a), but in accordance with results reported in references 8b) and 8c), pp.10-13

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