The synthesis, characterization of N-(4-heptyloxy benzylidene)-4-alkoxy anilines, 7O.Om compounds with varying alkoxy chain length m = 3, 5, 6, 7, 9, and 16 is presented in this manuscript. Further, the phase transition studies are also carried out from density measurements. The compounds are found to exhibit mono variant, bi variant, and tri variant mesophases. The order of the phase transitions from density jumps are estimated and compared with the body of the data available.
nO.Om compounds Phase transitions Order of transitions Density studies
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The authors D. Madhavi Latha and Dr. V. G. K. M. Pisipati express their thank to The Head, ECE Department and the Management of K.L.University, Vaddeswaram 522 502, India for providing facilities. This work is supported by the Department of Science and Technology (Grant No: SR/S2/CMP-0071/2008). D. Madhavi Latha acknowledges the financial support of DST-WOS-A through grant No.SR/WOS-A/PS-05/2010. The author P. Paradhasaradhi thanks the Management, and the Principal of The Vasavi Engineering College, Nandamuri, India for their support during the work.
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