High pressure studies on hexa-n-alkoxy triphenylene homologous series

D. S.Shankar Rao, Vivek Kumar Gupta, S. Krishna Prasad, M. Manickam, Sandeep Kumar

Research output: Contribution to journalArticlepeer-review

15 Scopus citations

Abstract

High pressure investigations have been carried out on four successive homologues of the hexa-n-alkoxy triphenylene series exhibiting the hexagonally ordered columnar mesophase. The most remarkable feature is that the slope of the mesophase to isotropic phase boundary (dT/dP)1 bar shows a strong decrease with increasing chain length becoming zero for the 8th homologue. To explain this feature we propose an argument based on the ratio of the volume of the triphenylene core to the total volume.

Original languageEnglish
Pages (from-to)193-206
Number of pages14
JournalMolecular Crystals and Liquid Crystals
Volume319
DOIs
StatePublished - 1998
Externally publishedYes

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