52995-76-3Relevant academic research and scientific papers
Synthesis and characterization of new copolyacrylates containing porphyrin units as pendant groups and their use as sensors
Dattilo,Mineo,Scamporrino,Spina,Vitalini
, p. 796 - 802 (2011)
Novel copolyacrylates containing various molar ratios of 5,10,15-tri[p-(9-methoxy-triethylenoxy)phenyl]-20-(p-acryloxyphenyl)porphyrin units in the chains have been synthesized, and their chemical structure was determined by NMR and MALDI-TOF mass spectrometry. Sensing response of the synthesized copolymers has been tested for trifluoroacetic and hydrochloric acids and nitrogen dioxide analytes. The reported sensing data indicate that porphyrin units are interacting with analytes in a reversible fashion.
Preparation and characterization of technetium-99m complexes with new diphosphines containing polyether groups
Valls, Esteve,Martin, David,Piera, Carlos,Suades, Joan
, p. 909 - 921 (2005)
We report the synthesis and characterization of three new diphosphine ligands with polyether groups of general formula R(OCH2CH 2)nPPhCH2CH2PPh(CH 2CH2O)nR: 1 (R = Me, n = 3), 2 (R = Bu, n = 3) and 3 (R = Bu, n = 4). trans-[99mTcO2L2] + complexes were prepared by reaction between the diphosphine ligands and the 99mTc-gluconate precursor. The homologous rhenium complexes, trans-[ReO2L2]Cl (L = 1,2,3), were synthesized by ligand substitution reaction with [ReO2py4]Cl and oxorhenium (V) gluconate, and characterized by IR, ESMS and 1H, 13C{ 1H}, 31P{1H} NMR spectroscopy. All these data are consistent with the formation of diphosphine complexes chelated to the trans-ReO2 unit. The HPLC analyses of rhenium and 99mTc complexes display very similar profiles and retention times, consistent with the formation of the homologous complexes. Preliminary biodistribution studies with rats show significant differences between the behaviour of the three 99mTc complexes. Copyright
A polyoxy group branched diazo dye as an alternative material for the fabrication of an electrochemical epinephrine sensor
Avci, Okan,Perk, Benay,?ren Varol, Tu?ba,Tepeli Büyüksünet?i, Yudum,Hakli, ?zgül,Anik, ülkü
, p. 18575 - 18581 (2019)
In the present study, a novel diazo dye with a polyoxy group (2{2[2(2-methoxyethoxy)ethoxy]ethoxy}-5-[(E)-(4-nitrophenyl)diazenyl]benzaldehyde (AZOTEG)) was used as a modifier to fabricate modified electrochemical platforms for epinephrine detection. For this purpose, a carbon paste electrode (CPE), which was the working electrode, was modified with AZOTEG molecules. An increase in epinephrine oxidation peak current with a negative shift in peak potentials demonstrated the electrocatalytic effect of the AZOTEG/CPE compared to the plain CPE. After the observation of this effect, experimental parameters like AZOTEG amount and pH were optimized. Then, the electrochemical mechanism was investigated by obtaining cyclic voltammograms versus scan rates. Under the optimized conditions, the analytical characteristics were examined and as a result, a wide linear range (0.1-75 μM) with a limit of detection and a limit of quantification of 0.013 μM and 0.042 μM (n = 3) were obtained. After the examination of the interference effect of uric acid, the developed sensor was successfully used for epinephrine detection in adrenaline injection samples.
Ruthenium complex immobilized on supported ionic-liquid-phase (SILP) for alkoxycarbonylation of olefins with CO2
Xia, Shi-Ping,Ding, Guang-Rong,Zhang, Rui,Han, Li-Jun,Xu, Bao-Hua,Zhang, Suo-Jiang
supporting information, p. 3073 - 3080 (2021/05/05)
In this study, the heterogeneously catalyzed alkoxycarbonylation of olefins with CO2based on a supported ionic-liquid-phase (SILP) strategy is reported for the first time. An [Ru]@SILP catalyst was accessed by immobilization of ruthenium complex on a SILP, wherein imidazolium chloride was chemically integrated at the surface or in the channels of the silica gel support. An active Ru site was generated through reacting Ru3(CO)12with the decorated imidazolium chloride in a proper microenvironment. Different IL films, by varying the functionality of the side chain at the imidazolium cation, were found to strongly affect the porosity, active Ru sites, and CO2adsorption capacity of [Ru]@SILP, thereby considerably influencing its catalytic performance. The optimized [Ru]@SILP-A-2 displayed enhanced catalytic performance and prominent substrate selectivity compared to an independent homogeneous system under identical conditions. These findings provide the basis for a novel design concept for achieving both efficient and stable catalysts in the coupling of CO2with olefins.
SULFONIUM SALT, RESIST COMPOSITION AND PATTERNING PROCESS
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Paragraph 0132; 0133, (2016/12/22)
The present invention refers to a formula (1a) or (1b) provides sulfonium salt represented by. Said in formula, R may contain hetero atoms in the carbon atoms 7 ～ 30 linear, branched or annular of 1 of hydrocarbon group having an, n ' an integer of the 1 ～ 4. [...] of the present invention, conventional [...] the having high hydrophilicity different and have a phenolic hydroxyl or ethylene [...] , specific anion of the present invention in combination with the when used in resist material sulfonium salt immersion possibility and and reduced in elution to, yet pattern dependence (dark color illumination color difference) is laminated in the transistor circuit, chemical amplification type resist material photoacid generator. as number. (by machine translation)
Homogeneous liquid-liquid extraction of metal ions with non-fluorinated bis(2-ethylhexyl)phosphate ionic liquids having a lower critical solution temperature in combination with water
Depuydt, Daphne,Liu, Liwang,Glorieux, Christ,Dehaen, Wim,Binnemans, Koen
supporting information, p. 14183 - 14186 (2015/09/15)
Ionic liquids with an ether-functionalised cation and the bis(2-ethylhexyl)phosphate anion show thermomorphic behaviour in water, with a lower critical solution temperature. These ionic liquids are useful for homogeneous liquid-liquid extraction of first-row (3d) transition metals.
Highly efficient synthesis of cyclic carbonates from epoxides catalyzed by salen aluminum complexes with built-in "cO2 capture" capability under mild conditions
Luo, Rongchang,Zhou, Xiantai,Chen, Shaoyun,Li, Yang,Zhou, Lei,Ji, Hongbing
, p. 1496 - 1506 (2014/03/21)
A series of monometallic salen aluminum complexes were prepared by covalent linkage of the imidazolium-based ionic liquid moieties containing various polyether chains with the salen ligand at the two sides of the 5,5′-position. The salen aluminum complexes proved to be efficient and recyclable homogeneous catalysts towards the organic solvent-free synthesis of cyclic carbonates from epoxides and CO2 in the absence of a co-catalyst. The catalysts presented excellent "CO2 capture" capability due to the molecules containing polyether chains and the metal aluminum center, in which >90% yield of cyclic carbonate could be obtained under mild conditions. The catalysts can be easily recovered and six times reused without significant loss of activity and selectivity. Moreover, based on experimental and previous work, the "CO2 capture and activation" cycloaddition reaction mechanisms by monometallic or bimetallic salen aluminum complexes were both proposed.
Strong two-photon absorption enhancement in a unique bis-porphyrin bearing a diketopyrrolopyrrole unit
Nowak-Krol, Agnieszka,Grzybowski, Marek,Romiszewski, Jerzy,Drobizhev, Mikhail,Wicks, Geoffrey,Chotkowski, Maciej,Rebane, Aleksander,Gorecka, Ewa,Gryko, Daniel T.
supporting information, p. 8368 - 8370 (2013/09/23)
A π-extended bis-porphyrin bridged via a diketopyrrolopyrrole unit was prepared in 5 steps. This fully conjugated π-system displays strongly distorted linear absorption, while its two-photon absorption cross-section reaches 2500-3000 GM at 940 nm. LC-like behaviour, easy orientation and low viscosity are, according to XRD, POM and DSC measurements, due to formation of plastic rather than a liquid crystal.
Highly efficient SO2 capture by dual functionalized ionic liquids through a combination of chemical and physical absorption
Cui, Guokai,Wang, Congmin,Zheng, Junjie,Guo, Yan,Luo, Xiaoyan,Li, Haoran
supporting information; experimental part, p. 2633 - 2635 (2012/04/17)
Two kinds of dual functionalized ionic liquids with ether-functionalized cations and tetrazolate anions were designed, prepared, and used for SO 2 capture, which exhibit an extremely high SO2 capacity and excellent reversibility through a combination of chemical and physical absorption. The Royal Society of Chemistry 2012.
Highly soluble polyoxyethylene-perylene diimide: Optical, electrochemical and photovoltaic studies
Birel, O. Hakli,Zafer, Ceylan,Dincalp, Haluk,Aydin, Banu,Can, Mustafa
experimental part, p. 562 - 569 (2012/01/02)
The synthesis and optical properties of a new dye molecule [PERKAT] were reported. The molecular structure of PERKAT was characterized by FT-IR and 1H NMR. Optical properties of PERKAT were investigated by UV-Vis absorption, fluorescence spectroscopy. The effect of the solvent polarity on the spectral characteristics has been investigated in five common organic solvents of different polarity. PERKAT is highly soluble in common organic solvents such as chloroform, dichloromethane due to the polyoxyethylene chains. The fluorescence quantum yields of PERKAT in all solvents is very low (10 -2 -10-3). Cyclic Voltammetry (CV) analysis was performed to determine the HOMO and LUMO energy levels of the PERKAT. PERKAT was used as electron acceptor material in organic solar cell.
