Liquid-crystalline paramagnetic Cu(II) complexes of enaminoketone ligands

Wieslaw Pyzuk; Ewa Gorecka; Adam Krowczynski

doi:10.1117/12.156942

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15 October 1993 Liquid-crystalline paramagnetic Cu(II) complexes of enaminoketone ligands

Wieslaw Pyzuk, Ewa Gorecka, Adam Krowczynski

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Proceedings Volume 1845, Liquid and Solid State Crystals: Physics, Technology and Applications; (1993) https://doi.org/10.1117/12.156942
Event: Liquid and Solid State Crystals: Physics, Technology, and Applications, 1992, Zakopane, Poland

Abstract

Studies of complexes: [R-C₆H₄-CO(CH)₂N-Alk]₂Cu, (I), [Alk-CO(CH)₂N-C₆H₄-R]₂Cu, (II), and [R¹-C₆H₄-CO(CH)₂N-C₆H₄-R²]₂Cu, (III), for various terminal substituents R, R¹, R², are presented. For alkyl substituents R, complexes are low- melting and low-clearing nematics [group (I)] and smectics A [group (II)]. Mesophases are monotropic for pure compounds, enantiotropic for mixtures. Elongation of molecular core by introduction trans-cyclohexyl rings into R substituents leads to enantiotropic paramagnetic mesogens. Complexes of the group (III) are high-melting and high-clearing mesogens which usually undergo decomposition in the isotropic phase.

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Wieslaw Pyzuk, Ewa Gorecka, and Adam Krowczynski "Liquid-crystalline paramagnetic Cu(II) complexes of enaminoketone ligands", Proc. SPIE 1845, Liquid and Solid State Crystals: Physics, Technology and Applications, (15 October 1993); https://doi.org/10.1117/12.156942

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