874-80-6Relevant articles and documents
Photoswitchable phthalocyanine-assembled nanoparticles for controlled "double-lock" photodynamic therapy
Cheng, Hong-Bo,Li, Xingshu,Kwon, Nahyun,Fang, Yanyan,Baek, Gain,Yoon, Juyoung
, p. 12316 - 12319 (2019)
In the current study, a new nanoparticle platform, NanoAzoPcS, is created by co-assembly of phthalocyanine and azobenzene amphiphiles, which can be used to gain precise control of PDT simply by regulating the stoichiometric ratio of the components and usi
Development of an analytical method based on temperature controlled solid-liquid extraction using an ionic liquid as solid solvent
Pan, Zhongwei,Wang, Zhengquan,Zhu, Linna,Zhu, Zhiming,Cai, Jinying,Shen, Xiaoman,Fan, Tingli,Zhang, Yingnan,Chen, Zhixiu,McPhee, Derek J.
, p. 22137 - 22145 (2015)
At the present paper, an analytical method based on temperature controlled solid-liquid extraction (TC-SLE) utilizing a synthesized ionic liquid, (N-butylpyridinium hexafluorophosphate, [BPy]PF6), as solid solvent and phenanthroline (PT) as an extractant was developed to determine micro levels of Fe2+ in tea by PT spectrophotometry. TC-SLE was carried out in two continuous steps: Fe2+ can be completely extracted by PT-[BPy]PF6 or back-extracted at 80 °C and the two phases were separated automatically by cooling to room temperature. Fe2+ after back-extraction, needs 2 mol/L HNO3 as stripping agent and the whole process was determined by PT spectrophotometry at room temperature. The extracted species was neutral Fe(PT)mCl2 (m = 1) according to slope analysis in the Fe2+-[BPy]PF6-PT TC-SLE system. The calibration curve was Y = 0.20856X - 0.000775 (correlation coefficient = 0.99991). The linear calibration range was 0.10-4.50 μg/mL and the limit of detection for Fe2+ is 7.0 × 10-2 μg/mL. In this method, the contents of Fe2+ in Tieguanyin tea were determined with RSDs (n = 5) 3.05% and recoveries in range of 90.6%-108.6%.
Effects of ionic liquids for lipase-catalyzed chiral 1,1′-binaphthyl- 2- yl(phenyl)methanone O-acetyl oxime synthesis
Zhou, Yongchang,Takahashia, Motohiro,Aoyagi, Naoto,Li, Chunlei,Kijimaa, Tatsuro,Izumia, Taeko
, p. 297 - 300 (2009)
The resolution of 1,1'-binaphthyl-2-yl(phenyl)methanone O-acetyl oxime catalyzed by lipase in three different ionic liquids, 1-butyl-3- methylimidazolium hexafluoride-phosphate, [bmim][PF6], 1-butyl-3-methylimidazolium tetrafluoroborate, [bmim][BF4] and N-butyl-pyridium hexafluorophosphate, [BuPy][PF6] and organic solvents was studied. The lipase shows low activity in ionic liquids and organic solvent with ionic liquids as the additive, while the lipase coated with ionic liquids gives the best enantioselectivity as high as 95 %.
Thermodynamic studies of ionic interactions in aqueous solutions of N-butyl-pyridinium bromide at 298.15 K
Shaikh, Vasim R.,Terdale, Santosh S.,Gupta, Gaurav R.,Hundiwale, Dilip G.,Patil, Kesharsingh J.
, p. 14 - 22 (2013)
Density and osmotic coefficient measurements for aqueous solutions of N-butyl-pyridinium bromide [Bpy][Br] in concentration range ~ 0.019 to ~ 0.39 mol·kg- 1 at 298.15 K are reported. The density data are used to obtain apparent molar volume (V), partial molar volume of solute and solvent V?2andV?1 respectively as well the limiting partial molar volume ?V0=V?20 of the solute [Bpy][Br] (by appropriate extrapolation). The experimental osmotic coefficient data are used to determine the activity and mean ionic activity coefficients of solute and solvent respectively. Experimental activity coefficient data are compared with those obtained from Debye-Hu?ckel and Pitzer models. The activity data have been further processed to obtain the Gibbs free energy change due to mixing (ΔGm) and excess Gibbs free energy change (ΔG E). The aggregation number (n) and critical micelle concentration (cmc) are obtained for ionic salt in solution phase by applying pseudo-phase separation model to andV data respectively. Application of McMillan-Mayer theory of solutions to the data is made. The results have been interpreted on the basis of structural characteristic of salt, ion-solvent and ion-ion interactions.
Newly designed flow reactor as an original method of synthesis of ionic liquids by ion-exchange reactions
Pawlowska-Zygarowicz, Anna
supporting information, (2021/11/16)
Optimization of chemical reactions is often costly and requires a significant investment in both materials and time. The solution to this type of difficulty may be the use of continuous flow systems. With the use of the newly designed continuous flow system, the method of synthesizing ionic liquids (ILs) by ion exchange was optimized. The flow rate of the substrates and the selection of the packing of the column in which the reactions were carried out (random packing or a chemical compound in the form of a solid, which was the source of the anion exchanged) were also optimized. The purity of the obtained ionic liquids and the progress of the reaction was determined using ion chromatography. Additionally, for the ionic liquids, which were the starting compounds for the ion exchange reaction, the basic physicochemical properties were determined, thus extending the data library available for chemical compounds belonging to the group of ionic liquids.
Chemical Vapor Deposition of Ionic Liquids for the Fabrication of Ionogel Films and Patterns
Ameloot, Rob,Arnauts, Giel,Calderon Gonzalez, Maider,Cruz, Alexander John,Hauffman, Tom,Marcoen, Kristof,Obst, Martin
supporting information, p. 25668 - 25673 (2021/10/04)
Film deposition and high-resolution patterning of ionic liquids (ILs) remain a challenge, despite a broad range of applications that would benefit from this type of processing. Here, we demonstrate for the first time the chemical vapor deposition (CVD) of ILs. The IL-CVD method is based on the formation of a non-volatile IL through the reaction of two vaporized precursors. Ionogel micropatterns can be easily obtained via the combination of IL-CVD and standard photolithography, and the resulting microdrop arrays can be used as microreactors. The IL-CVD approach will facilitate leveraging the properties of ILs in a range of applications and microfabricated devices.