Fluorescence and absorption of Rhodamine 6G solutions as pressure standards for a diamond-anvil cell

IF 2.9 3区化学 Q3 CHEMISTRY, PHYSICAL

Physical Chemistry Chemical Physics Pub Date : 2024-10-08 DOI:10.1039/d4cp03351e

Ida Moszczyńska, Anna Golczak, Marek Sikorski, Andrzej Katrusiak

引用次数: 0

Abstract

The absorption and fluorescence spectra of Rhodamine 6G (R6G) dissolved in water, methanol, ethanol and isopropanol have been applied to calibrate the pressure in a diamond anvil cell (DAC). Owing to the strong initially nearly linear temperature-independent bathochromic shift of 7 nm/GPa found in absorption and emission bands for methanol R6G solutions, they are ideal for precise pressure calibration to over 3.4 GPa, when methanol freezes. Analogous bathochromic shifts as a function of pressure are revealed for the aqueous, ethanolic and isopropanolic solutions. The pressure-induced shifts are considerably reduced in the crystallized solution. Practical protocols are presented to calibrate high pressures with R6G solutions.

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罗丹明 6G 溶液的荧光和吸收作为金刚石振荡池的压力标准

溶解在水、甲醇、乙醇和异丙醇中的罗丹明 6G（R6G）的吸收和荧光光谱被用于校准金刚石砧电池（DAC）中的压力。由于甲醇 R6G 溶液的吸收带和发射带具有与温度无关的 7 nm/GPa 的强初始近线性浴色偏移，因此非常适合在甲醇结冰时对超过 3.4 GPa 的压力进行精确校准。水溶液、乙醇溶液和异丙醇溶液的浴色偏移与压力的函数关系类似。在结晶溶液中，压力引起的位移大大减少。介绍了用 R6G 溶液校准高压的实用方案。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Physical Chemistry Chemical Physics 化学-物理：原子、分子和化学物理

CiteScore

5.50

自引率

9.10%

发文量

2675

审稿时长

2.0 months

期刊介绍： Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.