Enlarged helical twisting power in chiral cyclic dimers based on conventional chiral alkyl diols

References

• Eelkema , R and Feringa , BL. 2006 . Amplification of chirality in liquid crystals . Org Biomol Chem , 4 : 3729 – 3745 .
   PubMed Web of Science ®Google Scholar
• Finkelmann , H and Stegemeyer , H. 1978 . Temperature dependence of the intrinsic pitch in induced cholesteric systems . Ber Bunsen Phys Chem , 82 : 1302 – 1308 .
   Web of Science ®Google Scholar
• Semenkova , GP , Kutulya , LA , Shkol'nikova , NI and Khandrimailova , TV. 2001 . New chiral imines based on S-α-phenylethylamine and S-α-benzylethylamine in induced cholesteric and smectic mesophases: II. Behavior of chiral dopants in ester liquid-crystal systems . Crystallogr Rep , 46 : 118 – 135 .
   Web of Science ®Google Scholar
• Kuball , HG , Brning , H , Müller , T , Türk , O and Schönhofer , A. 1995 . Helical twisting power of chiral mono- and bis-aminoanthraquinones. Intramolecular and intermolecular chirality transfer in liquid-crystal phases . J Mater Chem , 5 : 2167 – 2174 .
   Web of Science ®Google Scholar
• van Delden , RA and Feringa , BL. 2001 . Color indicators of molecular chirality based on doped liquid crystals Edited by: Angew , Chem . Vol. 40 , 3198 – 3200 .
   Google Scholar
• Fukuda , K , Suzuki , H , Ni , J , Tokita , M and Watanabe , J. 2007 . Relationship between chemical structure and helical twisting power in optically active imine dopants derived from (R)-(+)-1-(1-naphthyl)ethylamine . Jpn J Appl Phys , 46 : 5208 – 5212 .
   Web of Science ®Google Scholar
• Zahn , S , Proni , G , Spada , GP and Canary , JW. 2001 . Supramolecular detection of metal ion binding: Ligand conformational control of cholesteric induction in nematic liquid crystalline phases . Chem–Eur J , 7 : 88 – 93 .
   PubMed Web of Science ®Google Scholar
• Yoshida , J , Sato , H , Yamagishi , A and Hoshino , N. 2005 . On the parity in helical twisting power of Ru(iii) 1,3-diketonates of C2 symmetry in nematic liquid crystals . J Am Chem Soc , 127 : 8453 – 8456 .
   PubMed Web of Science ®Google Scholar
• Superchi , S , Donnoli , MI , Proni , G , Piero , G and Rosini , C. 1999 . Induction of cholesteric mesophases by simple cyclic derivatives of p,pʹ-disubstituted 1,2-diphenylethane-1,2-diols: Importance of shape and polarizability effects . J Org Chem , 64 : 4762 – 4767 .
   PubMed Web of Science ®Google Scholar
• Seebach , D , Beck , AK and Heckel , A. 2001 . TADDOLs, their derivatives, and TADDOL analogs: versatile chiral auxiliaries Edited by: Angew , Chem . Vol. 40 , 92 – 138 .
   Google Scholar
• Itoh , M , Tokita , M , Adachi , K , Hayakawa , T , Kang , S , Tezuka , Y and Watanabe , J. 2009 . Synthesis of macrocyclised dimetric compounds and their liquid crystal transition behaviours . Liq Cryst , 36 : 1443 – 1450 .
   Web of Science ®Google Scholar
• Itoh , M , Tokita , M , Hegi , H , Hayakawa , T , Kang , S and Watanabe , J. 2011 . Enhancement of the cholesteric induction power by macrocyclization in liquid crystal dimers with a chiral spacer . J Mater Chem , 21 : 1697 – 1699 .
   Web of Science ®Google Scholar
• Sage , I. 2011 . Thermochromic liquid crystals . Liq Cryst , 38 : 1551 – 1561 .
   Web of Science ®Google Scholar
• Imrie , CT , Henderson , PA and Yeap , GY. 2009 . Liquid crystal oligomers: Going beyond dimers . Liq Cryst , 36 : 755 – 777 .
   Web of Science ®Google Scholar
• Ferrarini , A , Moro , GJ and Nordio , PL. 1996 . Shape model for ordering properties of molecular dopants inducing chiral mesophases . Mol Phys , 87 : 485 – 499 .
   Web of Science ®Google Scholar
• Ferrarini , A , Moro , GJ and Nordio , PL. 1996 . Simple molecular model for induced cholesteric phases . Phys Rev E: Stat Nonlinear Soft Matter Phys , 53 : 681 – 688 .
   PubMed Web of Science ®Google Scholar
• Brunner , H and Lautenschlarger , HJ. 1989 . Synthesis of new optically active bis- and tris(phosphines) . Synthesis , 9 : 706 – 709 .
   Google Scholar
• Coates , D and Gray , GW. 1976 . The liquid crystal properties of some cyano-substituted aryl esters . Mol Cryst Liq Cryst , 37 : 249 – 262 .
   Web of Science ®Google Scholar
• Berova , N , Nakanishi , K and Woody , RW. 1998 . Exciton chirality method: principles and applications , 337 – 340 . Weinheim : Wiley . Chapter 12
   Google Scholar
• Harada , N , Chen , S-ML and Nakanishi , K. 1975 . Quantitative definition of exciton chirality and the distant effect in the exciton chirality method . J Am Chem Soc , 97 : 5345 – 5352 .
   Web of Science ®Google Scholar
• Kohler , B , Enkelmann , V , Oda , M , Pieraccini , S , Spada , GP and Scherf , U. 2001 . Novel chiral macrocycles containing two electronically interacting arylene chromophores . Chem–Eur J , 7 : 3000 – 3004 .
   PubMed Web of Science ®Google Scholar