Lanthanide-containing mesophases

Bernardinelli, G, Biinzli, J.C.G., Deschenaux, R., and Guillon, D. (1998) Bent tridentate receptors in calamitic mesophases with predetermined photophysical properties new luminescent lanthanide-containing materials. Journal of the American Chemical Society, 120, 12274. 

All the Schiff s base complexes discussed so far are low-molecular weight complexes. An erbium(lll)-containing methacrylate metallopolymer was prepared by free-radical polymerization of a Schiff s base monomer LllH, followed by complex formation with hydrated erbium nitrate (Haase et al., 1996). By XRD, the presence of a smectic mesophase was shown. A special feature of the polymer is that the complexing group is an Ai-aryl substituted Schiff s base, rather than an Ai-alkyl substituted one. No further structural data were reported. A detailed study of the mesophase behavior of lanthanide complexes of Ai-aryl substituted Schiff s base ligands LllH was reported by Rao et al. (2002, 2010). The complexes were synthesized by reaction between the... 

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