New chiral enantiomerically pure ferrocenyl chromophores for non-linear opt
ics (NLO) have been synthesized and their crystal structures were determine
d by X-ray analysis. The correlation bem een crystal packing and bulk NLO e
fficiency was studied exemplifying again the difficulty to preview crystal
packing from the molecular structure. (C) 2000 Academie des sciences / Edit
ions scientifiques et medicales Elsevier SAS.