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Cubic Phase Formation from New Hexacatenar Metallomesogens Based on Cobalt 3,4,5‐Trialkoxybenzoate
Author(s) -
Lin ChienHo,
Kao HsienChang,
Sung WenTe,
Cheng YaoWen,
Wang WenJwu
Publication year - 2015
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.201400214
Subject(s) - mesogen , chemistry , monoclinic crystal system , crystallography , cobalt , phase (matter) , liquid crystal , texture (cosmology) , powder diffraction , crystal structure , liquid crystalline , inorganic chemistry , organic chemistry , optics , physics , artificial intelligence , computer science , image (mathematics)
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(1C 12 ) 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.