scholarly journals Synthesis and characterization of herbicidal ionic liquids based on (4-chloro-2-methylphenoxy)acetate and phenoxyethylammonium

2021 ◽  
Author(s):  
Kamil Ciarka ◽  
Radoslaw Olszewski ◽  
Tadeusz Praczyk ◽  
Juliusz Pernak
Keyword(s):  
Thermal Stability ◽  
Ionic Liquids ◽  
Physicochemical Properties ◽  
Alkyl Chain ◽  
Herbicidal Activity ◽  
Synthesis And Characterization ◽  
Test Plant ◽  
Methyl Group ◽  
Centaurea Cyanus

AbstractTen ionic liquids containing the (4-chloro-2-methylphenoxy)acetate (MCPA) anion and domiphen derived phenoxyethylammonium cation were synthesized. The obtained compounds differed in terms of the substitution of the phenoxyethylammonium group in the ring (the presence of a methyl group in the meta or para positions and the presence of chlorine in the para position) as well as the length of the alkyl chain (from hexyl to tetradecyl). The basic physicochemical properties of the obtained ionic liquids (solubility and thermal stability) were characterized and their structures were confirmed. The herbicidal activity of the compounds was tested under greenhouse conditions using cornflower (Centaurea cyanus L.) as the test plant.

Synthesis and characterization of physicochemical properties of hydrophilic imidazolium-based ionic liquids

2017 ◽  
Vol 34 (9) ◽  
pp. 2527-2535 ◽  
Author(s):  
Maryam Yousefi ◽  
Majid Abdouss ◽  
Ali Akbar Miran Beigi ◽  
Ali Naseri
Keyword(s):  
Ionic Liquids ◽  
Physicochemical Properties ◽  
Synthesis And Characterization

Synthesis and characterization of physicochemical properties of new ether-functionalized amino acid ionic liquids

2020 ◽  
Vol 304 ◽  
pp. 112718 ◽  
Author(s):  
Duo Zhang ◽  
Biao Li ◽  
Mei Hong ◽  
Yu-Xia Kong ◽  
Jing Tong ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Amino Acid ◽  
Physicochemical Properties ◽  
Synthesis And Characterization

Synthesis and Characterization of Imidazolium Perrhenate Ionic Liquids

2013 ◽  
Vol 68 (5-6) ◽  
pp. 598-604 ◽  
Author(s):  
Shuang Yue ◽  
Da-Wei Fang ◽  
Jun Li ◽  
Shu-Liang Zang ◽  
Ming-Dong Zhou ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Ionic Liquids ◽  
Room Temperature ◽  
Alkyl Chain ◽  
Alkyl Chain Length ◽  
Synthesis And Characterization ◽  
Room Temperature Ionic Liquids ◽  
Ionization Mass ◽  
C Nmr

A series of air- and water-stable imidazolium perrhenate-based room-temperature ionic liquids [(RT)ILs] of the type [Cnmim][ReO4] (Cnmim = 1-CnH2n+1-3-methylimidazolium, n = 2, 4, 5, 6, 8, 10, 12) have been synthesized and characterized by 1H and 13C NMR spectroscopy, IR spectroscopy, electrospray ionization mass spectrometry (ESI-MS), and elemental analysis (EA). The effect of the variation of the alkyl chain length on physical properties such as melting point, thermal stability, density, and conductivity was examined

scholarly journals Synthesis and Characterization of Compounds Based on Carbazole and Sulfone Groups

2021 ◽  
Author(s):  
huixian jia ◽  
Chenghong Feng ◽  
Wanfei Han ◽  
Yan Xue ◽  
Yanren Jin ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Room Temperature ◽  
Alkyl Chain ◽  
High Thermal Stability ◽  
Synthesis And Characterization ◽  
Luminescent Materials ◽  
Chain Lengths ◽  
Carbazole Group ◽  
Absorption Characteristics

Abstract Two compounds containing carbazole and sulfone groups with different alkyl chain lengths have been designed and synthesized. The sulfone group has strong absorption characteristics and the alkoxy chain and carbazole group are electron-rich, forming D-δ-A-type symmetrical molecules. The molecules have the characteristics of charge transfer and high thermal stability, and the molecules stack to form a layered staggered stack, reducing the intermolecular π–π interactions. The target compounds also exhibit strong ultraviolet-fluorescent emission in the solid state at room temperature, and they are expected to be good luminescent materials.

scholarly journals Synthesis and Characterization of Alkali Lignin-based Hydrogels from Ionic Liquids

BioResources ◽  
2017 ◽  
Vol 12 (3) ◽  
Author(s):  
Xingxiang Ji ◽  
Zhili Zhang ◽  
Jiachuan Chen ◽  
Guihua Yang ◽  
Honglei Chen ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Synthesis And Characterization ◽  
Alkali Lignin

Synthesis and Characterization of Some Functional Luminol Derivatives with Aromatic Substituted Groups

2011 ◽  
Vol 197-198 ◽  
pp. 606-609 ◽  
Author(s):  
Ti Feng Jiao ◽  
Yuan Yuan Xing ◽  
Jing Xin Zhou ◽  
Wei Wang
Keyword(s):  
Molecular Structure ◽  
Thermal Stability ◽  
Molecular Structures ◽  
Synthesis And Characterization ◽  
Functional Material ◽  
Aromatic Substituent ◽  
The Difference ◽  
Imide Group ◽  
Thermal Stability Of

Some functional luminol derivatives with aromatic substituted groups have been designed and synthesized from the reaction of the corresponding aromatic acyl chloride precursors with luminol. It has been found that depending on the size of aromatic groups, the formed luminol derivatives showed different properties, indicating distinct regulation of molecular skeletons. UV and IR data confirmed commonly the formation of imide group as well as aromatic segment in molecular structures. Thermal analysis showed that the thermal stability of luminol derivatives with p-phthaloyl segment was the highest in those derivatives. The difference of thermal stability is mainly attributed to the formation of imide group and aromatic substituent groups in molecular structure. The present results have demonstrated that the special properties of luminol derivatives can be turned by modifying molecular structures of objective compounds with proper substituted groups, which show potential application in functional material field and ECL sensor.

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