Unsymmetric 1, 3, 4-oxa (thia) diazoles of quinoxaline–naphthalene conjugates
KT Lin, HM Kuo, HS Sheu, CK Lai
Index: Lin, Kuan-Ting; Kuo, Hsiu-Ming; Sheu, Hwo-Shuenn; Lai, Chung K. Tetrahedron, 2013 , vol. 69, # 43 p. 9045 - 9055
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Citation Number: 17
Abstract
Abstract Two new series of unsymmetric 1, 3, 4-oxa (thia) diazoles 1a, b containing both quinoxaline and naphthalene moieties were prepared and their mesomorphic properties were investigated. The mesomorphic behavior of compounds 1a, b and 2 was studied by DSC analysis and polarized optical microscopy. All compounds 1a and 2 exhibited hexagonal columnar phases (Col h), which were also confirmed by powder XRD ...
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