- Liquid-crystalline ternary rare-earth complexes
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The thermal behavior of the metallomesogens [Ln-(C12C 16dbm)3(phen)] (Ln = La, Nd, Eu, Gd, Tb, Dy, Er, Yb; C12C16dbm = 1-(4-dodecyloxyphenyl)-3-(4- hexadecyloxyphenyl) propane-1,3-dionate; phen = 1,10-phenanthroline) was investigated. The complexes of the light lanthanides (Ln = La, Nd) are not mesomorphic, whereas the complexes of the heavy lanthanides (Ln = Eu, Gd, Tb, Dy, Er, Yb) exhibit a monotropic smectic A phase (SmA). A model for the molecular organization of the molecules in the smectic A phase is proposed. The luminescence properties of the complexes [Eu(C12C16dbm) 3(phen)], [Er(C12C16dbm)3(phen)], and [Yb(C12C16dbm)3(phen)] were investigated. Wiley-VCH Verlag GmbH & Co. KGaA, 2008.
- Knyazev, Andrey A.,Galyametdinov, Yury G.,Goderis, Bart,Driesen, Kris,Goossens, Karel,Goerller-Walrand, Christiane,Binnemans, Koen,Cardinaels, Thomas
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p. 756 - 761
(2008/12/22)
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