Mesomorphic metal complexes derived from 4-alkyloxystilbazoles

Article abstract of DOI:10.1080/10587259208038507

The weakly mesomorphic trans-4-alkyloxy-4′-stilbazoles (n-OPhVPy) are readily synthesised from alkyloxyiodobenzenes and 4-vinylpyridine in a palladium-catalysed Heck reaction. While the highly symmetric palladium and platinum complexes trans-[MCl₂(n-OPhVPy)₂] show mesophases only at very high temperatures, the lower symmetry platinum complexes trans-[PtCl₂(η²-olefin) (n-OPhVPy)] melt below 100°C. Similarly, the complexes [MCl(CO)₂(n-OPhVPy)] (M = Rh, Ir) are low melting. The silver complexes [Ag(n-OPh VPy)₂][X] (X = C₁₂H₂₅OSO₃, C₈H₁₇OSO₃, CF₃SO₃) can be obtained by direct reaction of the stilbazole with AgX. These ionic materials show a rich thermotropic polymorphism, including nematic and cubic mesophases. Some fluorinated stilbazoles have also been synthesised and complexed to silver; the mesomorphism of these complexes is also reported.

Full text of DOI:10.1080/10587259208038507

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Molecular Crystals and Liquid Crystals
Science and Technology. Section A.
Molecular Crystals and Liquid Crystals
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Mesomorphic Metal Complexes Derived
from 4-Alkyl-oxystilbazoles
Duncan W Bruce a , S Christina Davis a , David A Dunmur a , Sarah A
Hudson a , Peter M Maitlis a & Peter Styring a
a Department of Chemistry , The University , SHEFFIELD, S3 7HF, UK
Published online: 24 Sep 2006.
To cite this article: Duncan W Bruce , S Christina Davis , David A Dunmur , Sarah A Hudson , Peter
M Maitlis & Peter Styring (1992) Mesomorphic Metal Complexes Derived from 4-Alkyl-oxystilbazoles,
Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and
Liquid Crystals, 215:1, 1-11, DOI: 10.1080/10587259208038507
To link to this article: http://dx.doi.org/10.1080/10587259208038507
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