Journal
JOURNAL OF MATERIALS CHEMISTRY
Volume 20, Issue 43, Pages 9613-9615Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c0jm02876b
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Funding
- National Science Foundation [DMR-0907542]
- Direct For Mathematical & Physical Scien [0907542] Funding Source: National Science Foundation
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Replacement of a C-C fragment with an N+-B- fragment leads to pairs of isosteric non-polar/polar nematics with a difference in the calculated molecular dipole moment of about 12 D. Contrary to the expectations, the uniform increase of the dipole moment does not affect phase stability equally, and a strong dependence on the substituent structure is observed. For one of the polar derivatives (5b, mu = 20 D) a record high dielectric anisotropy (Delta epsilon = 113) was measured in dilute nematic solutions.
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