C O M M U N I C A T I O N S
In summary, a new class of materials, anisotropic ion-conductive
ionic liquid crystals have been obtained. These materials would be
useful for transportation of ion, energy, and information at the
nanometer level. We have succeeded in measuring one-dimensional
anisotropic ionic conductivities for the macroscopically ordered
columnar assemblies.
Acknowledgment. Partial financial support of Grant-in-Aid for
Scientific Research on Priority Areas, Scientific Research B,
Encouragement of Young Scientists B, and The 21st Century COE
Program from the Ministry of Education, Culture, Sports, Science
and Technology is gratefully acknowledged.
Supporting Information Available: Synthesis, experimental de-
tails, and characterization of compounds 1a,b (PDF). This material is
Figure 3. Anisotropic ionic conductivities of 1a and 1b as a function of
temperature: (b) parallel and (9) perpendicular to the columnar axis for
1a; (O) parallel and (0) perpendicular to the columnar axis for 1b. The
broken lines denote the Colh-I phase transition temperatures.
References
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These self-organized columnar ionic liquids can also function
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from 17 to 193 °C, while for the single component of 1b, the
columnar phase is observed from 17 to 183 °C. The ionic columnar
core in the LC phase is stabilized by the existence of the metal
salt.
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