124249-85-0Relevant academic research and scientific papers
2-Hydroxybenzoic acid esters: Synthesis, complexes with Tb(III), and their luminescence characteristics
Kondrat'Eva,Novikova,Meshkova,Topilova,Doga
, p. 786 - 792 (2014)
New esters of 2-hydroxybenzoic acid and 4-(4-alkoxybenzoyloxy)phenols, forming liquid crystals, were synthesized. These compounds in solution form complexes with Tb(III), exhibiting photoluminescence properties.
Synthesis and characterization of two phenyl ring core-based thiophene mesogens
Reddy, M. Kesava,Reddy, K. Subramanyam,Prakash,Narasimhaswamy
, p. 1 - 14 (2013/11/06)
Novel thiophene mesogens built with two phenyl ring core and alkoxy terminal chains are synthesized by multistep route. The phenyl ring core is connected to thiophene by ester unit at (a) 2-position and (b) 3-position to yield 2-series of mesogens. The structural characterization of them is accomplished by using spectroscopy tools and the mesophase characteristics are evaluated by HOPM and DSC. The 13C chemical shifts of representative mesogens calculated from DFT by quantum chemical calculations are compared with experimental 13C chemical shifts and further utilized for structural assignment of core unit carbons. A good agreement between calculated and experimental values is noticed. An enantiotropic nematic phase is confirmed for all the mesogens and accordingly threaded nematic texture in HOPM is observed and is supported by DSC transition enthalpy values. The mesophase as well as thermal stabilities of the mesogens are discussed with reference to terminal chain length and position of the linking unit on thiophene.
Thermotropic liquid crystals from planar chiral compounds: [2.2]Paracyclophane as a mesogen core
Rozenberg, Valeria I.,Popova, Elena L.,Hopf, Henning
, p. 431 - 441 (2007/10/03)
New thermotropic mesomorphic compounds containing a [2.2]paracyclophane (PC) unit were synthesized and investigated (Scheme). Carboxylic acids were selected as the starting PC building blocks. The influence of structural features on the stability of the m
Synthesis and liquid crystalline properties of (S)-[4-n-alkyloxy-benzoyloxyphenyl]-4′-[(2-n-alkyloxy)propionyloxy] benzoate
Vajda, Aniko,Kaspar, Miroslav,Hamplova, Vera,Pakhomov, Ser-Gei A.,Vanek, Premysl,Bubnov, Alexei,Fodor-Csorba, Katalin,Eber, Nandor
, p. 569 - 580 (2007/10/03)
New series of chiral liquid crystalline compounds, (S)-[4-n-alkyloxy-benzoyloxyphenyl]-4′-[(2-n-alkyloxy)propionyloxy] benzoate (QMn/m), were synthesised. Polymorphism of the new compounds was investigated by polarising microscopy and differential scannin
1,1'-Disubstituted Ferrocene-Containing Thermotropic Liquid Crystals of Structure 5-C5H4)COOC6H4XC6H4OCnH2n+1>2> (X=OOC or COO). Influence of the Orientation of the Central Ester Function on the Mesogenic Properties
Deschenaux, Robert,Marendaz, Jean-Luc,Santiago, Julio
, p. 865 - 876 (2007/10/02)
The two series I and II of 1,1'-disubstituted ferrocenes which differ by the direction of the ester function included the rigid organic part were synthesized and their liquid crystal properties examined.These latter were found to be strongly dependent on the orientation of the connecting ester group and on the alkyl chain.
Molecular Structure and Liquid Crystalline Properties: The Effect of the Terminal Hydroxy Group on Mesomorphic Properties
Sakurai, Y.,Tamatani, A.,Teshima, K.,Kusabayashi, S.,Takenaka, S.
, p. 163 - 172 (2007/10/02)
The thermal properties of 4-hydroxyphenyl 4-(4-alkoxybenzoyloxy)benzoates (1), 4-(4-alkoxyphenoxycarbonyl)phenyl 4-hydroxybenzoates (2), 4-(4-alkoxybenzoyloxy)phenyl 4-hydroxybenzoates (3), 4-hydroxyphenyl 4-(4-alkoxyphenoxycarbonyl)benzoates (4) and some
FERROELECTRIC SC* PHASE IN SOME BENZOATE SERIES
Tinh, Nguyen Huu,Salleneuve, C.,Babeau, A.,Galvan, J. M.,Destrade, C.
, p. 147 - 154 (2007/10/02)
Several homologous benzoate series which exhibit ferroelectric smectic SC* phases have been synthesized.The used chiral acid chains were prepared from commercially available α-amino acids.The series allow us to determine the influence of the size of the substituent of the chiral carbon on the existence and the stability of the SC* phase.They also give some compounds or mixtures which display high spontaneous polarization.
