86741-92-6Relevant academic research and scientific papers
The Preparation and Measurement of the Temperatures and Heats of Transition of the Liquid Crystal Phases of Two Homologous Series: 2-hydroxy-1,2-bis(4-n-alkyloxyphenyl)-1-(4-ethoxyphenyl)iminoethane and (4-n-decyloxyphenyl)iminoethane
Bennur, S. C.,Kroin, T.,Ouriques, G. R.,Taylor, T. R.
, p. 277 - 288 (2007/10/02)
Two homologous series A and B, viz, 2-hydroxy-1,2-bis(4-n-alkyloxyphenyl)-1-(4-ethoxyphenyl) and 2-hydroxy-1,2-bis(4-n-alkyloxyphenyl)-1-(4-n-decyloxyphenyl)iminoethanes have been prepared with varying number of carbon atoms in the alkoxy chain.The transition temperatures and textures of the mesophases were determined with a polarizing microscope equipped with a Mettler FP-5 hot stage.The transition temperatures and transition heats were measured using a Perkin-Elmer DSC-2.The compounds of the two series with the same number of carbon atoms do not exhibit the same mesophases.Series A exhibits a nematic phase for compounds with n = 1-16 and also a smectic phase for compounds with n = 10, 12 and 16.Series B shows a nematic mesophase for compounds with n /= 5.
MESOGENIC DITHIOLATES: NEW DISK LIKE Π-ACCEPTORS
Veber, M.,Fugnitto, R.,Strzelecka, H.
, p. 221 - 228 (2007/10/02)
Starting from p-hydroxyphenylacetic acid we have been able to synthesize mesogenic dithiolates of transition metals with long chain substituents.Introduction of n-alkoxy side chains reduces the electronic affinity of this system, nevertheless those compou
