Synthesis and Characterisation of Macrocyclic Liquid Crystalline Ligands and their Metal Complexes

• Published in: Molecular crystals and liquid crystals science and technology. Section A, Molecular crystals and liquid crystals Vol. 364; no. 1; pp. 753 - 758
• Main Authors: Jejurkar, C. R., Dave, Jayrang S., Patel, Pratik R., Menon, Meera R.
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Philadelphia, PA Taylor & Francis Group 01.08.2001; Gordon and Breach
• Subjects: Condensed matter: structure, mechanical and thermal properties; Exact sciences and technology; Liquid crystals; Physics; Structure of solids and liquids; crystallography; Inorganic compounds; Transition element complexes; Nitrogen crown compound; Nitrogen heterocycle; Mesomorphism; Organic ligand; Experimental study; Liquid crystals; Texture; Mesogenic compound; Macrocycle; Chemical preparation; Actinide complexes; Mesophases; Ethers; Acylate
• ISSN: 1058-725X
• DOI: 10.1080/10587250108025045

Four macrocyclic liquid crystalline ligands derived from 1,8 dihydroxy ethyl 1,3,6,8,10,13 hexa aza cyclotetradecane(DHAT) and trans-4-n-alkoxy cinnamoyl chloride have been synthesised and their metal complexes using Cu(II),Ni(II),Pb(II), V(V) and U(VI) metal ions have been isolated. The ligands and their metal complexes were characterised by elemental analysis, FTIR,NMR,X-Ray and DSC studies. Polarising microscope was used to identify mesomorphic textures of the ligands and the complexes. The transition temperature and mesophase textures of the ligands and complexes have been compared. The effect of presence of different metal ions on mesomorphic properties has been discussed.