230306-50-0Relevant articles and documents
Alkoxy/halostyryl benzoic acids: Synthesis, crystal structure, and study of mesomorphic and photophysical properties
Muhammad, Khushi,Rauf, M. Khawar,Tahir, M. Nawaz,Hameed, Shahid
, p. 32 - 45 (2017/09/07)
Alkoxy/halostyrylbenzoic acids were synthesized and evaluated for their mesomorphic and photophysical properties. The trans geometry of the molecules was established by the presence of large coupling constants in 1H-NMR spectra and confirmed fu
Synthesis and study of new rod-like mesogens containing 2-aminothiophene unit
Puterová, Zita,Romiszewski, Jerzy,Mieczkowski, Jozef,Gorecka, Ewa
, p. 8172 - 8180 (2012/09/22)
We present a synthesis and mesomorphic properties of a new series of rod-like mesogens. All the compounds possess a substituted 2-aminothiophene unit as a main element in the structure attached to a stilbene moiety with a terminal alkyloxy chain (OR1, OR2 where R 1=CnH2n+1, R2=CmH 2m+1; n, m ranging from 6 to 12). The synthesis of alkyloxybiphenyl substituted 2-aminothiophenes was carried out by the Gewald reaction and the appropriate reaction conditions were investigated. The liquid-crystalline properties were studied via polarizing optical microscopy, differential scanning calorimetry and X-ray diffraction. These materials exhibit nematic and/or smectic A phases. The influence of structural changes (variation in alkyloxy chain length and symmetry of the molecule) on mesogenic behaviour is discussed. Evaluation of UV-vis, fluorescent and electrochemical properties are also included.
