Polar Groups and Arylsulfonamides: A Good Combination with which to Obtain Supramolecular Columnar Liquid Crystals. Issue 24 (4th July 2013)

• Record Type: Journal Article
• Authors: Zennaro, Angela; Hincapié, Cesar Augusto; Martos, Alba; Sebastián, Rosa M.; Barberá, Joaquín; Serrano, José Luis; Sierra, Teresa
• Is Part Of: European journal of organic chemistry. Issue 24(2013)
• Page Start: 5331
• Page End: 5340
• Publication Date: 2013-07-04
• Subjects: Liquid crystals -- Hydrogen bonds -- Electrostatic interactions -- Sulfon­amides -- Macrocycles; Chemistry, Organic -- Periodicals; Organic compounds -- Synthesis -- Periodicals; Bioorganic chemistry -- Periodicals; Chemistry, Physical organic -- Periodicals; 547
• DOI: 10.1002/ejoc.201300222
• Languages: English
• ISSNs: 1434-193X

Abstract

Abstract: Mesomorphic arylsulfonamide derivatives containing four long alkyl chains and polar groups (fluoro, cyano or amino) have been synthesized and characterized by polarized optical microscopy, differential scanning calorimetry, and X‐ray diffraction on the mesophase. Studies of the supramolecular organization of these molecules have allowed a better understanding of the noncovalent driving forces (dipole··· dipole and hydrogen‐bonding interactions) responsible for the self‐assembly, which is mainly due to the presence of the polar groups. Abstract : Polar groups play an important role in the organization of arylsulfonamide derivatives in mesophases. Hydrogen‐bonding interactions between amino groups or dipole··· dipole interactions between CF or CN groups are responsible for the forces that characterize the cohesion of molecules in hexagonal columnar mesophases.