Cubic Phase Formation from New Hexacatenar Metallomesogens Based on Cobalt 3,4,5‐Trialkoxybenzoate |
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| Authors: | Chien‐Ho Lin Hsien‐Chang Kao Wen‐Te Sung Yao‐Wen Cheng Wen‐Jwu Wang |
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| Institution: | Department of Chemistry, Tamkang University, Tamsui, Taipei 25137, Taiwan |
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| Abstract: | Cobalt complexes of Co(3Cn)2(MeOH)4, derived from 3,4,5‐trialkyloxybenzoate ligand (noted as 3Cn) with n = 10, 12, 14 and 16, were synthesized and characterized. The crystal of Co(1C12)2(MeOH)4 were determined by means of x‐ray single crystal analysis. It crystallizes in the monoclinic P21/c space group with a = 24.3271(19) Å, b = 14.0058(11) Å, c = 6.4612(4) Å, α = γ = 90o, β = 94.368(4)o, and Z = 2. The phase texture and mesogenic properties were detected by polarized optical microscopic and powder x‐ray diffraction technique. It was found that these compounds display the cubic phases. Differential scanning calorimetric data indicated that these compounds were nearly room temperature liquid crystalline and with a very wide mesogenic phase range. |
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| Keywords: | Metallomesogens Room temperature liquid crystals Cobalt carboxylates Cubic mesophase |
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