离子液体中的多相共存：1-癸基-3-甲基咪唑鎓硝酸盐

IF 4.8 2区化学 Q2 CHEMISTRY, PHYSICAL

The Journal of Physical Chemistry Letters Pub Date : 2024-10-16 DOI:10.1021/acs.jpclett.4c02716

Hiroshi Abe, Shusei Maruyama, Hiroaki Kishimura, Mikio Uruichi, Daisuke Okuyama, Hajime Sagayama

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引用次数: 0

摘要

利用拉曼光谱和同步辐射小角和广角 X 射线散射 (SWAXS)，在单组分 1-癸基-3-甲基硝酸咪唑鎓（[C10mim][NO3]）离子液体 (IL) 中观察到了复杂的相变。时间分辨同步辐射 SWAXS 可以根据冷却速度区分相变。代表几种层状结构的低 Q 峰被分解。在特定冷却速率（8-9 K/分钟）下，[C10mim][NO3]中观察到了多相共存现象。离子液体晶体（ILC）、混合层状晶体和六方紧密堆积结构同时共存。在冷却速率区域，观察到 ILC 相在加热时的重入相变。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Multiphase Coexistence in an Ionic Liquid: 1-Decyl-3-methylimidazolium Nitrate

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Multiphase Coexistence in an Ionic Liquid: 1-Decyl-3-methylimidazolium Nitrate

Complicated phase transitions were observed in a single-component 1-decyl-3-methylimidazolium nitrate ([C₁₀mim][NO₃]) ionic liquid (IL) using Raman spectroscopy and synchrotron small- and wide-angle X-ray scattering (SWAXS). Time-resolved synchrotron SWAXS could distinguish the phase transitions depending upon the cooling rate. Low-Q peaks representing a few kinds of layered structures were decomposed. Multiphase coexistence was observed in [C₁₀mim][NO₃] at specific cooling rates (8–9 K/min). Ionic liquid crystals (ILCs), hybrid-layered crystals, and hexagonal close-packed structures coexisted simultaneously. At the cooling rate region, the reentrant phase transition of the ILC phase upon heating was observed.

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来源期刊

The Journal of Physical Chemistry Letters CHEMISTRY, PHYSICAL-NANOSCIENCE & NANOTECHNOLOGY

CiteScore

9.60

自引率

7.00%

发文量

1519

审稿时长

1.6 months

期刊介绍： The Journal of Physical Chemistry (JPC) Letters is devoted to reporting new and original experimental and theoretical basic research of interest to physical chemists, biophysical chemists, chemical physicists, physicists, material scientists, and engineers. An important criterion for acceptance is that the paper reports a significant scientific advance and/or physical insight such that rapid publication is essential. Two issues of JPC Letters are published each month.