123126-39-6Relevant articles and documents
A novel colorimetric and ratiometric fluoride ion sensor derived from gallic acid
Shi, Heng,Li, Xiangguo,Chen, Hongjin,Xing, Jieni,Zhang, Rui,Liu, Jian
, p. 597 - 602 (2021)
A novel colorimetric and ratiometric probe (SH-GA) for the fluoride ion detection was designed and synthesized from gallic acid. SH-GA exhibited a selective color change from colorless to yellow in the presence of F- among the eight anions (F-, Cl-, Br-, I-, H2PO4-, HSO4-, CH3COO-, and ClO4-), either in THF or DMF solutions. The binding stoichiometry between SH-GA and fluoride ions was determined to be 1?:?1, and the complexation constant was 1.5 × 103 M-1 in THF. The detection limit of the SH-GA probe reached as low as around 1 μM in THF. 1H NMR titration results and DFT calculations suggested a deprotonation process via hydrogen bonding interactions between the fluoride ion and amino group of SH-GA.
Phase selective organogel from an imine based gelator for use in oil spill recovery
Mondal, Sanjoy,Bairi, Partha,Das, Sujoy,Nandi, Arun K.
, p. 381 - 392 (2019)
Marine oil spills create a serious problem for the environment by destroying ecosystems, and the adulteration of fuel oils is also a serious problem, as the optimum performance of an engine is affected by damaging its parts. To save the environment and pr
Novel gallic-calixarene liquid crystals: Syntheses and conformation influences on mesomorphism
Fang, Xiaoting,Guo, Hongyu,Yang, Fafu,Wu, Yamin
, p. 6128 - 6131 (2015)
Three novel gallic-calixarene derivatives 5, 6 and 7 were prepared in yields of 57-76%. Their structures and conformations were confirmed by element analyses, IR, ESI-MS and NMR spectra. Compounds 5 and 6 with stable cone conformation show liquid crystall
Synthesis and self-assembly of shape amphiphiles based on POSS-dendron conjugates
Shao, Yu,Ding, Minyuan,Xu, Yujie,Zhao, Fangjia,Dai, Hui,Miao, Xia-Ran,Yang, Shuguang,Li, Hui
, (2017)
Shape has been increasingly recognized as an important factor for self-assembly. In this paper, a series of shape amphiphiles have been built by linking polyhedral oligomeric silsesquioxane (POSS) and a dendron via linkers of different lengths. Three conjugates of octahedral silsesquioxanes (T8-POSS) and dendron are designed and synthesized and are referred to as isobutyl T8-POSS gallic acid derivatives (BPOSS-GAD-1, BPOSS-GAD-2, BPOSS-GAD-3). These samples have been fully characterized by 1H-NMR, 13C-NMR, Fourier transform infrared (FT-IR) spectroscopy and matrix-assisted laser desorption/ionization time of flight (MALDI-TOF) mass spectrometry to establish their chemical identity and purity. Driven by different interactions between POSS and dendron, ordered superstructure can be found upon self-assembly. The stabilities and structures of these samples are further studied by using differential scanning calorimetry (DSC), small-angle X-ray scattering (SAXS), wide-angle X-ray diffraction (WAXD), and molecular simulations. The results show that their melting points range from 74°C to 143°C and the molecular packing schemes in the assemblies can form lamellar structure of BPOSS-GAD-3 as determined by the different linkers.
Construction of Redox Responsive Vesicles Based on a Supra-Amphiphile for Enzyme Confinement
Pan, Tiezheng,Zou, Huixin,Sun, Hongcheng,Liu, Yao,Liu, Shengda,Luo, Quan,Dong, Zeyuan,Xu, Jiayun,Liu, Junqiu
, p. 871 - 875 (2017)
Redox responsive vesicles were constructed based on self-assembly of a supra-amphiphile built by the host- guest interaction between β-cyclodextrin and a ferrocene derivative. The structure and destruction-reconstruction reversibility of the “smart” vesicles were clearly characterized by electron microscopy and dynamic light scattering. Notably, these vesicles were proved to be capable of controlled release function and bringing protease resistance to the enzyme, showing great biocompatibility and promising applications.
Cubic phase formation from new hexacatenar metallomesogens based on cobalt 3,4,5-trialkoxybenzoate
Lin, Chien-Ho,Kao, Hsien-Chang,Sung, Wen-Te,Cheng, Yao-Wen,Wang, Wen-Jwu
, p. 26 - 32 (2015)
Cobalt complexes of Co(3Cn)2(MeOH)4, derived from 3,4,5-trialkyloxybenzoate ligand (noted as 3Cn) with n = 10, 12, 14 and 16, were synthesized and characterized. The crystal of Co(1C12)2(MeOH)4 were determined by means of x-ray single crystal analysis. It crystallizes in the monoclinic P21/c space group with a = 24.3271(19) ?, b = 14.0058(11) ?, c = 6.4612(4) ?, α = γ = 90o, β = 94.368(4)o, and Z = 2. The phase texture and mesogenic properties were detected by polarized optical microscopic and powder x-ray diffraction technique. It was found that these compounds display the cubic phases. Differential scanning calorimetric data indicated that these compounds were nearly room temperature liquid crystalline and with a very wide mesogenic phase range. Two 3,4,5-trialkyloxybenzaotes were coordinated to a cobalt ion to form novel hexacatenar metallomesogens. The solid-state structure confirmed that two monodentate carboxylate ligands and four methanol molecules coordinated to the cobalt ion to give a slight distorted octahedral geometry. The mesomorphic behavior are stable and exist over a wide temperature range, which is arranged in layers and exhibited enantiotropic cubic mesophase.
Viologen-based redox-active ionic liquid crystals forming columnar phases
Tanabe, Kana,Yasuda, Takuma,Yoshio, Masafumi,Kato, Takashi
, p. 4271 - 4274 (2007)
Viologens possessing three alkoxy chains at each terminal self-organize into columnar liquid-crystalline phases through nanophase segregation and electrostatic interactions. These viologens are redox-active and susceptible to two consecutive electrochemic
Synthesis and properties of hole-transporting triphenylamine-derived dendritic compounds
Reghu, Renji R.,Simokaitiene, Jurate,Grazulevicius, Juozas V.,Raisys, Steponas,Kazlauskas, Karolis,Jursenas, Saulius,Jankauskas, Vygintas,Reina, Antonio
, p. 135 - 142 (2015)
Materials based on triphenylamino core linked with different alkoxyphenyl-substituents through olefinic spacers were synthesised, and their thermal, photophysical and photoelectrical properties were investigated. The synthesized compounds showed relativel
Liquid crystal phosphorescent material based on cyclometalated complex and application thereof
-
Paragraph 0019-0024, (2021/06/09)
The invention discloses a cyclometalated organic liquid crystal phosphorescent material based on 2-phenylpyridine as a main ligand and acetylacetone as an auxiliary ligand. A benzoic acid derivative liquid crystal unit is introduced into the main ligand 2
A phase-dependent photoluminescent discotic liquid crystal bearing a graphdiyne substructure
Yu, Zhen,Chen, Xu-Man,Liu, Zhi-Yang,Wang, Meng,Huang, Shuai,Yang, Hong
supporting information, p. 911 - 914 (2021/02/06)
In recent years, graphdiyne and its derivatives with fascinating electro-optic properties have attracted tremendous scientific attention. Here we design and synthesize a graphdiyne-derived discotic liquid crystal material by decorating six wedge-shaped 3,
