Title: Trimetallic nickel-lanthanum and nickel-gadolinium metallomesogens
Authors: Binnemans, Koen ×
Lodewyckx, Katleen #
Issue Date: 2003
Publisher: Taylor & francis ltd
Series Title: Supramolecular chemistry vol:15 issue:7-8 pages:485-494
Abstract: Adducts were formed between a mesomorphic Ni(salen) complex [salen = 2,2'-N,N'-bis(salicylidene)ethylenediamine] with six terminal alkoxy chains and a lanthanide nitrate (Ln = La, Gd). Different alkoxy chain lengths were used: OC12H25, OC14H29, OC16H33 and OC18H37. Trinuclear nickel-lanthanum and nickel-gadolinium complexes [Ln(NO3)(3) {Ni(salen)}(2)] were obtained. The compounds exhibit a wide-temperature-range hexagonal columnar meso-phase (Co1(H)) with rather low melting points. The mesophase stability ranges of both the parent nickel complexes and the nickel-lanthanide complexes decrease with increasing chain length. A decrease in the mesophase stability range over the lanthanide series was also observed. The results are compared with those of similar copper-lanthanide complexes. A marked difference is the higher thermal stability of the nickel-lanthanide complexes in comparison with the copper-lanthanide complexes.
ISSN: 1061-0278
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Molecular Design and Synthesis
Centre for Educational Development (-)
× corresponding author
# (joint) last author

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