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Original Articles

H-shaped symmetrical twin liquid crystalline compounds with polar-terminal substituents

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Pages 1151-1158 | Received 22 May 2013, Accepted 24 Jun 2013, Published online: 16 Jul 2013

References

  • Imrie , CT and Henderson , PA. 2002 . Liquid crystal dimers and oligomers . Curr Opin Colloid Interface Sci. , 7 ( 5–6 ) : 298 – 311 .
  • Imrie , CT and Henderson , PA. 2007 . Liquid crystal dimers and higher oligomers: between monomers and polymers . Chem Soc Rev. , 36 ( 12 ) : 2096 – 2124 .
  • Imrie , CT , Henderson , PA and Yeap , G-Y. 2009 . Liquid crystal oligomers: going beyond dimmers . Liq Cryst. , 36 ( 6–7 ) : 755 – 777 .
  • Martinez-Felipe , A. 2011 . Liquid crystal polymers and ionomers for membrane applications . Liq Cryst. , 38 ( 11–12 ) : 1607 – 1626 .
  • Goodby , JW , Mehl , GHI , Saez , M , Tuffin , RP , Mackenzie , G , Auzely-Velty , RA , Benvegu , T and Plusquellec , D. 1998 . Liquid crystals with restricted molecular topologies: supermolecules and supramolecular assemblies . Chem Commun. , 19 : 2057 – 2070 .
  • Takezoe , H and Takanishi , Y. 2006 . Bent-core liquid crystals: their mysterious and attractive world . Jpn J Appl Phys. , 45 : 597 – 625 .
  • Alska-Arodz , M , Stettin , H and Kresse , H. 1989 . Dielecreic low-frequency relaxation in a swallow tailed liquid crystal . Mol Cryst Liq Cryst. , 177 : 155 – 161 .
  • Saez , IM and Goodby , JW. 2003 . Design and properties of “Janus-like” supermolecular liquid crystals . Chem Commun. , 14 : 1726 – 1727 .
  • Yoshizawa , A and Yamaguchi , A. 2002 . Kinetically induced intermolecular association: unusual enthalpy changes in the nematic phase of a novel dimeric liquid-crystalline molecule . Chem Commun. , 18 : 2060 – 2061 .
  • Narumi , T , Miura , Y , Ashina , T and Yoshizawa , A. 2011 . Preorganised effects of a tetramesogenic supermolecule on supramolecular assembly in the liquid crystalline phases . Liq Cryst. , 38 ( 5 ) : 639 – 648 .
  • Yamaguchi , A , Nishiyama , I , Yamamoto , J , Yokoyama , H and Yoshizawa , A. 2005 . Unusual smectic phases organized by novel λ-shaped mesogenic molecules . J Mater Chem. , 15 ( 2 ) : 280 – 288 .
  • Berdague , P , Bayle , JP , Ho , Mei-Sing and Fung , BM. 1993 . New laterally aromatic branched liquid crystal materials with large nematic ranges . Liq Cryst. , 14 ( 3 ) : 667 – 674 .
  • Yoshizawa , A , Nakata , M and Yamaguchi , A. 2006 . Phase transition behaviour of novel Y-shaped liquid crystal oligomers . Liq Cryst. , 33 ( 5 ) : 605 – 609 .
  • Varia , MC , Kumar , S and Prajapati , AK. 2012 . T-shaped non-symmetrical twin liquid crystalline compounds . Liq Cryst. , 39 ( 8 ) : 933 – 942 .
  • Griffin , AC , Buckley , NW , Hughes , DL and Wertz , DL. 1981 . Effect of molecular structure on mesomorphism.11.1 A siamese twin liquid crystal having two independently smectogenic conformations . Mol Cryst Liq Cryst Lett. , 64 : 139 – 144 .
  • Weissflog , W , Demus , D , Diele , S , Nitschke , P and Welder , W. 1989 . From laterally branched mesogens to novel twin molecules . Liq Cryst. , 5 ( 1 ) : 111 – 122 .
  • Ishizuka , H , Nishiyama , I and Yoshizawa , A. 1995 . Helical structures induced by laterally-connected chiral twin molecules . Liq Cryst. , 18 ( 5 ) : 775 – 779 .
  • Park , J-H and Jin , J-IJ. 1998 . The effect of substituents on the liquid crystalline behavior of new H-shaped dimesogenic compounds . Korean Chem Soc. , 42 : 315 – 322 .
  • Huh , S-M , Jin , J-I , Achard , M-F and Hardouin , F. 1998 . H-shaped dimeric LC compounds: synthesis and thermotropic properties of alpha, omega-bis [2,5-bis(4-ethoxy phenoxy carbonyl)phenoxy]alkanes . Liq Cryst. , 25 ( 3 ) : 285 – 293 .
  • Huh , S-M , Jin , J-I , Achard , M-F and Hardouin , F. 1999 . Synthesis and liquid crystalline properties of new 1,6-bis[2,5-bis(4-alkoxyphenoxycarbonyl)phenoxy] hexanes H-shaped twin compounds . Liq Cryst. , 26 ( 6 ) : 919 – 924 .
  • Lub , J , Broer , DJ and Allan , JF. 1999 . The synthesis and polymerisation of a liquid crystalline crosslinkable thiol-ene molecule . Mol Cryst Liq Cryst. , 332 : 259 – 266 .
  • Andersch , J and Tschierske , C. 1996 . Synthesis and liquid crystalline properties of novel laterally connected twins . Liq Cryst. , 21 ( 1 ) : 51 – 63 .
  • Zhang , Y , Martinez-Perdiguero , J , Baumeister , U , Walker , C , Etxebarria , J , Prehm , M , Ortega , J , Tschierske , C , O'Callaghan , MJ , Harant , A and Handschy , M. 2009 . Laterally azo-bridged H-shaped ferroelectric dimesogens for second-order nonlinear optics: ferroelectricity and second harmonic generation . J Am Chem Soc. , 131 ( 51 ) : 18386 – 18392 .
  • Kolpaczynska , M , Madrak , K , Mieczkowski , J , Gorecka , E and Pociecha , D. 2011 . H-shaped liquid crystalline dimers . Liq Cryst. , 38 ( 2 ) : 149 – 154 .
  • Vora , RA , Prajapati , AK , Kevat , JB and Raina , KK. 2001 . Mesogenic properties and the effect of 1, 2, 4-trisubstituents on central benzene nucleus . Liq Cryst. , 28 ( 7 ) : 983 – 989 .
  • Prajapati , AK and Varia , MC. 2010 . λ-Shaped azomesogens with polar chloro and nitro substituents . Liq Cryst. , 37 ( 8 ) : 1083 – 1090 .
  • Manohar , R , Srivastava , AK , Chand , PB , Misra , AK , Prajapati , AK and Varia , MC. 2009 . λ-shaped mesogenic homologous series with polar substituents: synthesis, characterization and unusual dielectric behaviour . Res J Appl Sci Eng Technol. , 1 : 66 – 76 .
  • Kumar , B , Prajapati , AK , Varia , MC and Suresh , KA. 2009 . Novel mesogenic azobenzene dimer at air-water and air-solid interfaces . Langmuir. , 25 : 839 – 844 .
  • Kumar , B and Suresh , KA. 2009 . Kinetics of trans-cis isomerization in azobenzene dimers at an air-water interface . Phys Rev E. , 80 : 021601(1) – 021601(5) .
  • Prajapati , AK , Varia , MC and Sahoo , SP. 2011 . Azoester-based H-shaped symmetrical mesogenic dimers containing –CH3/–OCH3 terminal substituent . Phase Transitions. , 84 ( 4 ) : 325 – 342 .
  • Prajapati , AK , Varia , MC and Sahoo , SP. 2011 . H-shaped mesogenic dimers containing polar -NO2 /-Cl terminus . Liq Cryst. , 38 ( 7 ) : 861 – 869 .
  • Varia , MC , Kumar , S and Prajapati , AK. 2012 . H-Shaped azoester-oxymethylene containing twin liquid crystalline compounds . Liq Cryst. , 39 ( 3 ) : 365 – 371 .
  • Timothy , DWC. 2009 . High-resolution NMR techniques in organic chemistry , 2nd , Netherlands : Tetrahedron organic chemistry . Elsevier
  • Hatakeyama , T and Zhenhai , LJ. 1998 . Hand book of thermal analysis , England : Wiley .
  • Imrie , CT and Taylor , L. 1989 . The preparation and properties of low molar mass liquid-crystals possessing lateral alkyl chains . Liq Cryst. , 6 ( 1 ) : 1 – 10 .
  • Donaldson , T , Staesche , H , Lu , ZB , Henderson , PA , Achard , MF and Imrie , CT. 2010 . Symmetric and non-symmetric chiral liquid crystal dimers . Liq Cryst. , 37 ( 8 ) : 1097 – 1110 .
  • Henderson , PA and Imrie , CT. 2011 . Methylene-linked liquid crystal dimers and the twist-bend nematic phase . Liq Cryst. , 38 ( 11–12 ) : 1407 – 1414 .
  • Chan , T-N , Lu , Z , Yam , W-S , Yeap , G-Y and Imrie , CT. 2012 . Non-symmetric liquid crystal dimers containing an isoflavone moiety . Liq Cryst. , 39 ( 3 ) : 393 – 402 .
  • Gray , GW and Goodby , JW. 1984 . Smectic liquid crystals , Glasgow : Leonard-Hill .
  • Date , RW , Imrie , CT , Luckhurst , GR and Seddon , JM. 1992 . Smectogenic dimeric liquid crystals: the preparation and properties of the α,ω-bis(4-n-alkylanilinebenzylidine-4′-oxy)alkanes . Liq Cryst. , 12 ( 2 ) : 203 – 238 .
  • Attard , GS , Date , RW , Imrie , CT , Luckhurst , GR , Roskilly , JS , Seddon , JM and Taylor , L. 1994 . Non-symmetric dimeric liquid crystals: the preparation and properties of the α-(4-cyanobiphenyl-4′-yloxy)-ω-(4-n-alkylanilinebenzylidene-4′-oxy)alkanes . Liq Cryst. , 16 ( 4 ) : 529 – 581 .
  • Imrie , CT , Attard , GS , Date , RW , Luckhurst , GR , Roskilly , SJ , Seddon , JM and Taylor , L. 2006 . Non-symmetric dimeric liquid crystals: the preparation and properties of the α-(4-cyanobiphenyl-4′-yloxy)-ω-(4-n-alkylanilinebenzylidene-4′-oxy)alkanes . Liq Cryst. , 33 ( 11–12 ) : 1449 – 1485 .

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