Five newly synthesized bent-shaped compounds containing azobenzene chromophores have been prepared by
resorcinol esterification with 4-(4-alkyloxyphenylazo) benzoic acid using DCC and DMAP. The structure of newly synthesized
compounds was confirmed by MS and FT-IR spectroscopy. In addition, NMR spectroscopy also established the
purity of these compounds. According to their azo-type chemical structure, the newly synthesized compounds are expected
to be highly fluorescent. Consequently, their absorption and fluorescence properties were investigated using UVVis
and fluorescence spectroscopy. The present paper also investigates the fluorescence evolution of glycyl-L-tryptophan
dipeptide at different concentrations of the newly synthesized bent-shaped compounds. The intensity of their fluorescence
band over 400 nm depends much on individual structures. Since the investigated compounds could have optical properties
characteristic to liquid crystals, the interaction with fluorescent peptides, such as glycyl-tryptophan or proteins might enhance
their utility.
Preliminary study on the self-assembly of a pair of azobenzene liquid crystals derived from alanine
作者:Limin Wu、Jinming Chu、Fei Wang、Wei Liu、Yongmin Guo、Yi Li、Baozong Li、Yonggang Yang
DOI:10.1080/15421406.2022.2049504
日期:2022.8.13
Abstract A series of azobenzene liquid crystals containing one amino acid residue were synthesized. They exhibit smectic mesophases. The compounds derivedfromalanine can self-assemble into twisted nanoribbons. The molecules organized in a monolayer structure within the nanoribbon. Circular dichroism characterization indicated that the neighboring liquid crystal cores packed in a chiral structure
Synthesis and Characterization of New Liquid Crystals containing a Non-Activated Indolinobenzospiropyranyl Group. Part 4*[1]
作者:S.-R. Keum、J.-T. Shin、S.-H. Lee、S.-T. Shin
DOI:10.1080/15421400490434892
日期:2004.1
A series of new liquid crystalline compounds, 1', 3', 3'-Trimetylspiro [2H-1-benzopyran-2,2'-indolin]-6-yl 4-(4'-alkoxyphenylazo)benzoate, SP-APAB 1a similar to 1f, has been synthesized. Their liquid crystallines were subjected to thermal analysis on a differential scanning calorimeter (DSC), to texture of phases on a polarizing microscope and to phase transition on an X-ray diffraction and electro-optical measurement. Most of compounds examined exhibit monotropic nematic and SmA liquid crystal phases on cooling from isotropic liquid. Suprisingly, SP-APAB 1c is shown to exhibit monotropic SmC phase in addition. X-ray diffraction study of the layer spacing confirmed that there was a layer spacing in the range of two theta from 2.25 to 2.45 Angstrom on the temperature near the phase transition from SmA to SmC.
Circular dichroism active artificial phospholipids for the study of molecular membrane dynamics focused on lipid—lipid interaction
作者:Iwao Tabushi、Takako Nishiya
DOI:10.1016/s0040-4039(00)85011-x
日期:——
KALINNIKOVA, T. E.;KRAJNOVA, L. P.;POCHEKUEV, A. YU.;FOFANOVA, N. I., SOVERSH. PROTSESSOV KRASHENIYA I METODOV SINTEZA KRASITELEJ, IVANOVO, 198+
作者:KALINNIKOVA, T. E.、KRAJNOVA, L. P.、POCHEKUEV, A. YU.、FOFANOVA, N. I.