1-methyl-imidazolium

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑类
• 英文名称: 1-methyl-imidazolium
• 英文别名: hydron;1-methylimidazole
• 化学式: C₄H₇N₂
• 分子量: 83.113
• InChiKey: MCTWTZJPVLRJOU-UHFFFAOYSA-O

计算性质

• 辛醇/水分配系数(LogP)：
  0.2
• 重原子数：
  6
• 可旋转键数：
  0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  19.7
• 氢给体数：
  1
• 氢受体数：
  0

反应信息

• 作为反应物：
  描述：

  1-methyl-imidazolium 在 sulfate radical anion 作用下， 以 水 为溶剂， 生成
  参考文献：
  名称：

  电子自旋共振和脉冲辐解研究水溶液中羟自由基和硫酸根（1-）自由基与五元杂环化合物的反应

  摘要：

  DOI：

  10.1021/j100368a032
• 作为产物：
  描述：

  咪唑 、 碘甲烷 生成 1-methyl-imidazolium
  参考文献：
  名称：

  Jortay, C.; Flammang, R.; Maquestiau, A., Bulletin des Societes Chimiques Belges, 1985, vol. 94, # 10, p. 727 - 734

  摘要：

  DOI：
• 作为试剂：
  描述：

  8-bromoadenosine-5'-monophosphate 在 咪唑 、 lead(II) nitrate 、 2,2'-二硫二吡啶 、 1-methyl-imidazolium 、 三乙胺 、 三苯基膦 作用下， 生成 p5'(br⁸A)2'p5'(br⁸A)2'p5'(br⁸A)2'p5'(br⁸A) 、 p5'(br8A)2'p5'(br8A)2'p5'(br8A)2'p5'(br8A)2'p5'(br8A) 、 p5'(br⁸A)2'p5'(br⁸A)2'p5'(br⁸A)
  参考文献：
  名称：

  Synthesis and biological activities of oligo(8-bromoadenylates) as analogs of 5'-O-triphosphoadenylyl(2'.fwdarw.5')adenylyl(2'.fwdarw.5')adenosine

  摘要：

  The 8-bromoadenosine analogue of 5'-O-triphosphoadenylyl(2'----5')adenylyl(2'----5')adenosine (2-5A) and its derivatives were synthesized, and their biological activity was evaluated in mouse L cell extracts. All compounds, except 5'-dephosphorylated "cores" bound to the 2-5A-dependent endonuclease with a relative activity, depending on the derivative, of 1 to 0.035 of that of 2-5A trimer. 8-Bromoadenylate trimer 5'-mono-, -di, and -triphosphates inhibited protein synthesis with a relative activity of 0.0023, 0.050, and 0.015 compared to 2-5A. Tetramer 5'-monophosphate also inhibited protein synthesis (relative activity 0.0033). The corresponding pentamer 5'-monophosphate did not; however, the pentamer 5'-diphosphate was able to inhibit translation (relative activity 0.0092). All compounds that possessed inhibitory activity in the protein synthesis inhibition assay gave ribosomal RNA cleavage patterns characteristic of the action of 2-5A-dependent endonuclease. Thus, 8-bromination of the all of the adenine rings of 2-5A leads to 20- to 70-fold reduction in the biological activity of the corresponding 5'-di- and -triphosphate, respectively; however, this same alteration of the three adenine moieties gives rise to a 5'-monophosphate with much enhanced translational inhibitory activity compared to the parent 2-5A trimer 5'-monophosphate.

  DOI：

  10.1021/jm00156a020

文献信息

• Influence of gamma irradiation on hydrophobic room-temperature ionic liquids [BuMeIm]PF6 and [BuMeIm](CF3SO2)2N
  作者：L. Berthon、S. I. Nikitenko、I. Bisel、C. Berthon、M. Faucon、B. Saucerotte、N. Zorz、Ph. Moisy

  DOI：10.1039/b601111j

  日期：——

  spectrometry and NMR analysis reveal the presence of nonvolatile radiolysis products at concentrations below 1 mol% for an absorbed dose exceeding 1200 kGy. Initial step of BuMeIm+ cation radiolysis is the loss of the Bu* group, the H* atom from the 2 position on the imidazolium ring, and the H* atom from the butyl chain. Radiolysis of ionic liquid anions yields F* and CF3* from PF6- and [Tf2N]-, respectively

  在伽马射线分解下研究了纯疏水性室温离子液体（RTIL）[BuMeIm] X的稳定性，其中[BuMeIm] +是1-丁基-3-甲基咪唑鎓，X-是PF6-，（CF3SO2）2N- 137Cs）在氩气气氛和空气中。已经发现，即使吸收了大约600 kGy的剂量，RTIL的密度，表面张力和折射率也没有变化。所研究的RTIL在受到伽马射线照射时会表现出明显的变黑。离子液体的吸光度随照射剂量线性增加。水对辐射变暗没有影响。[BuMeIm] X和[Bu4N] [Tf2N]的比较研究得出的结论是，有色产物的形成与[BuMeIm] +阳离子的伽马射线分解有关。RTILs的辐射变暗动力学受以下阴离子的影响：Cl- < （CF 3 SO 2）2 N- ＜PF 6-。电喷雾电离质谱和NMR分析表明，当吸收剂量超过1200 kGy时，浓度低于1 mol％的非挥发性放射分解产物的存在。BuMeIm +阳离子辐射分解的第一步是失去Bu
• A Rational Approach to CO ₂ Capture by Imidazolium Ionic Liquids: Tuning CO ₂ Solubility by Cation Alkyl Branching
  作者：Marta C. Corvo、João Sardinha、Teresa Casimiro、Graciane Marin、Marcus Seferin、Sandra Einloft、Sonia C. Menezes、Jairton Dupont、Eurico J. Cabrita

  DOI：10.1002/cssc.201500104

  日期：2015.6.8

  introduction of a methyl group has a significant effect on CO2 solubility in comparison with linear or fluorinated analogues. The differences in CO2 solubility arise from differences in liquid organization caused by structural changes in the cation. ILs with branched cations have similar short‐range cation–anion orientations as those in ILs with linear side chains, but present differences in the long‐range

  评估离子液体（ILs）中咪唑阳离子在烷基侧链上的支链对10和80 bar（1 bar = 1×10 5  Pa）下二氧化碳（CO 2）增溶的影响。通过将高压NMR光谱测量与分子动力学模拟相结合，可以获得IL-CO 2混合物中发生的分子相互作用的完整描述。与线性或氟化类似物相比，甲基的引入对CO 2溶解度具有显着影响。CO 2的差异溶解度是由阳离子结构变化引起的液体组织差异引起的。带有支链阳离子的IL与带有线性侧链的IL的短程阳离子-阴离子方向相似，但在长程顺序上存在差异。CO 2的引入不会引起前者的困扰，而会受益于后者的差异。阳离子处的分支导致海绵状IL，具有增强的CO 2捕获能力。
• Dye-sensitized solar cell
  申请人：Komiya Ryoichi

  公开号：US20050229966A1

  公开（公告）日：2005-10-20

  Provided is a dye-sensitized solar cell having improved stability of safety and performance by employing a non-volatile molten salt which makes it possible to facilitate the control over the composition of gel electrolyte, simplify the working step during production and give an excellent conversion efficiency. The dye-sensitized solar cell comprises a transparent substrate, a transparent electrically-conductive membrane formed on the surface of the transparent substrate and an electrically-conductive substrate disposed opposed to the transparent electrically-conductive membrane and further comprises a porous semiconductor layer having a dye adsorbed thereto and an electrolyte provided interposed between the aforesaid transparent electrically-conductive membrane and the electrically-conductive substrate, wherein the electrolyte comprises a molten salt incorporated in a network structure obtained by crosslinking at least one kind of Compound A having isocyanate group with at least one kind of Compound B having amino group to solve the aforesaid problems. Or the electrolyte comprises a molten salt incorporated in a network structure obtained by crosslinking at least one kind of Compound A having isocyanate group with at least one kind of Compound C having carboxyl group and/or hydroxyl group, at least one of Compound A and Compound C constituting the electrolyte has a polymer structure having a molecular weight of from 500 to 100,000 and a part or whole of the polymer structure comprises one or more selected from the group consisting of polyether, polyester, polycaprolactone, polysiloxane, polyvinylpyrrolidone, polycarbonate and polyphosphazene.

  提供一种染料敏化太阳能电池，通过采用一种非挥发性熔盐，提高了安全性和性能的稳定性，使得可以便于控制凝胶电解质的组成，简化生产过程并具有优异的转换效率。该染料敏化太阳能电池包括透明基板、形成在透明基板表面上的透明导电膜和放置在与透明导电膜相对的导电基板上的电解质，其中电解质包括熔盐，所述熔盐被交联至少一种具有异氰酸酯基团的化合物A和至少一种具有氨基基团的化合物B，以解决上述问题。或者电解质包括熔盐，所述熔盐被交联至少一种具有异氰酸酯基团的化合物A和至少一种具有羧基和/或羟基的化合物C，其中化合物A和/或化合物C中的至少一种构成电解质，具有分子量为500至100,000的聚合物结构，并且聚合物结构的部分或全部包括聚醚，聚酯，聚己内酯，聚硅氧烷，聚乙烯吡咯烷酮，聚碳酸酯和聚磷氮化物等中的一个或多个。
• Method of preparation of halogen-free ionic liquids and ionic liquids prepared in this manner
  申请人：Cassol Claudia Cristiana

  公开号：US20080045723A1

  公开（公告）日：2008-02-21

  The reaction of N-alkylimidazol with alkyl sulfonates, at room temperature, favors the production of 1,3-dialkylimidazolium alkane-sulfonates as crystalline solids at high yields. The alkane-sulfonate anions may be easily substituted by a series of other anions [BF 4 , PF 6 , PF 3 (CF 2 CF 3 ) 3 , CF 3 SO 3 and (CF 3 SO 2 ) 2 N] through simple anion, salt, or acid reactions in water at room temperature. The extraction with dichloromethane, filtration, and evaporation of the solvent, allows the production of the desired ionic liquids at a yield of 80-95%. The purity of these ionic liquids (in some cases >99.4%) is performed using the intensity of 13 C satellite signals from the magnetic resonance spectrums of the N-methyl imidazolium group as an internal standard.

  在室温下，N-烷基咪唑与烷基磺酸盐反应，有利于产生高收率的1,3-双烷基咪唑烷基磺酸盐晶体。可以通过简单的阴离子、盐或酸反应在水中室温下轻松地用一系列其他阴离子[BF4、PF6、PF3(CF2CF3)3、CF3SO3和(CF3SO2)2N]替换烷基磺酸盐阴离子。用二氯甲烷提取、过滤和蒸发溶剂，可以在80-95%的收率下制备所需的离子液体。利用N-甲基咪唑基团的13C卫星信号强度作为内部标准，可以通过磁共振光谱的强度来检测这些离子液体的纯度（在某些情况下>99.4%）。
• CORROSION INHIBITION COMPOSITION FOR PIPELINES, PROCESS OF ELABORATION AND SYNTHESIS
  申请人：INSTITUTO MEXICANO DEL PETROLEO

  公开号：US20150118104A1

  公开（公告）日：2015-04-30

  Compounds and compositions are used as corrosion inhibitors for pipelines for crude oil containing water with high salt concentrations. The inhibitors are ionic liquids, imidazoles, benzotriazoles, and mixtures thereof. The composition includes two or more members of the inhibitors with a solvent. The inhibitors reduce corrosion of metallic surfaces of the pipelines containing crude oil having 0.2 and 40 wt % water, 10,000 to 70,000 ppm salt, and 9 to 600 ppm hydrogen sulfide. A synergic effect is provided by two or more different inhibitors. This synergy is derived from interactions with the metallic surface, among themselves or with the corrosive medium depending on the chain length, to inhibit the corrosion with decrease of the formulation dose. The composition can be a ternary formulation of the three families or two components of one family and a third component of a different family.

  化合物和组合物被用作含有高盐浓度水的原油管道的腐蚀抑制剂。这些抑制剂包括离子液体、咪唑、苯并三唑及其混合物。组合物包括两种或更多种抑制剂成员和溶剂。这些抑制剂减少了含有0.2至40重量％水，10,000至70,000 ppm盐和9至600 ppm硫化氢的原油管道的金属表面腐蚀。两种或更多不同的抑制剂提供了协同作用。这种协同作用源于它们与金属表面、彼此或与腐蚀介质的相互作用，取决于链长，以减少配方剂量抑制腐蚀。该组合物可以是三个家族的三元配方或一个家族的两个组分和不同家族的第三个组分的二元配方。