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Meso-/Microscopic Single Particle Analyses of Vapochromic Solid-State Crystallization in [Pt(CN)2(H2dcbpy)]
The Journal of Physical Chemistry C ( IF 3.3 ) Pub Date : 2021-09-17 , DOI: 10.1021/acs.jpcc.1c06139 Kazuyuki Ishii 1 , Shunsuke Takanohashi 1 , Masanobu Karasawa 1 , Kyoko Enomoto 1 , Yasuhiro Shigeta 2 , Masako Kato 2, 3
The Journal of Physical Chemistry C ( IF 3.3 ) Pub Date : 2021-09-17 , DOI: 10.1021/acs.jpcc.1c06139 Kazuyuki Ishii 1 , Shunsuke Takanohashi 1 , Masanobu Karasawa 1 , Kyoko Enomoto 1 , Yasuhiro Shigeta 2 , Masako Kato 2, 3
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In this study, the vapochromic behavior of the platinum complex, [Pt(CN)2(H2dcbpy)], was investigated using super-resolution microscopy techniques, that is, structured illumination microscopy and confocal laser microscopy. In [Pt(CN)2(H2dcbpy)], the amorphous-to-crystal transition occurs under the influence of methanol vapor, and the meso-/microscopic solid-state crystallization processes of amorphous single particles can be directly traced by their phosphorescence changes. The time evolutions of three-dimensional vapochromic behaviors demonstrated that when the size of single particles exceeded 10 μm, vapochromism initially manifested along the direction of the position of the MeOH reservoir and that the vapor-induced crystallization initiated at the surface, and subsequently, the crystallization-induced voids enabled vapochromism to advance into the interior of the particles. The findings reported herein provide new insights into the mechanisms underlying solid-state crystallization processes, and a novel strategy to sense organic vapor molecules is proposed.
中文翻译：
[Pt(CN)2(H2dcbpy)]中气相变色固态结晶的细观/微观单粒子分析
在这项研究中，铂络合物 [Pt(CN) 2 (H 2 dcbpy)]的气相变色行为使用超分辨率显微镜技术进行了研究，即结构化照明显微镜和激光共聚焦显微镜。在[Pt(CN) 2 (H 2dcbpy)]，无定形到晶体的转变发生在甲醇蒸气的影响下，无定形单粒子的细观/微观固态结晶过程可以通过它们的磷光变化直接追踪。三维蒸汽变色行为的时间演化表明，当单个颗粒的尺寸超过 10 μm 时，蒸汽变色最初沿 MeOH 储层的位置方向出现，蒸汽诱导结晶在表面开始，随后，结晶引起的空隙使气相变色能够进入颗粒内部。本文报告的发现为固态结晶过程的机制提供了新的见解，并提出了一种检测有机蒸气分子的新策略。
更新日期：2021-09-30
中文翻译：
[Pt(CN)2(H2dcbpy)]中气相变色固态结晶的细观/微观单粒子分析
在这项研究中，铂络合物 [Pt(CN) 2 (H 2 dcbpy)]的气相变色行为使用超分辨率显微镜技术进行了研究，即结构化照明显微镜和激光共聚焦显微镜。在[Pt(CN) 2 (H 2dcbpy)]，无定形到晶体的转变发生在甲醇蒸气的影响下，无定形单粒子的细观/微观固态结晶过程可以通过它们的磷光变化直接追踪。三维蒸汽变色行为的时间演化表明，当单个颗粒的尺寸超过 10 μm 时，蒸汽变色最初沿 MeOH 储层的位置方向出现，蒸汽诱导结晶在表面开始，随后，结晶引起的空隙使气相变色能够进入颗粒内部。本文报告的发现为固态结晶过程的机制提供了新的见解，并提出了一种检测有机蒸气分子的新策略。
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