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在基本水溶液中使用二氧化碳辅助的水溶性N^C^N-协调Pt(II) 复杂聚合物的组装
Hiroyuki Mita1, Shingo Hattori1, Toshiyuki Sasaki1
1Graduate School of Nanobioscience, Yokohama City University, 22-2 Seto, Kanazawa-ku, Yokohama 236-0027, Japan.
ChemSusChem
|October 4, 2023
概括
二氧化碳 (CO2) 触发水中的复合物的自我聚合,改变其颜色并形成复杂的结构. 这种二氧化碳诱导的自组装揭示了新的基材料,具有潜在的应用.
科学领域:
- 协调化学 协调化学
- 材料科学 材料科学 材料科学
- 超分子化学 超分子化学
背景情况:
- 复合物在催化和材料科学中至关重要.
- 了解自我聚合现象是设计新材料的关键.
- 二氧化碳 (CO2) 是一种丰富而多用途的C1构建块.
研究的目的:
- 为了研究由CO2诱导的复合物的前所未有的自我聚合.
- 描述产生的聚合物及其结构性质.
- 为了阐明二氧化碳触发的自组装在水溶液中的机制.
主要方法:
- 复合物的合成和特征 [Pt(L1) Cl].
- 谱学研究 (UV-Vis,短暂吸收) 来监测聚合.
- 单个X射线晶体学和元素分析用于结构确定.
- 使用单数值分解的动力分析.
主要成果:
- 基本水溶液中的二氧化碳诱导了[Pt(L1) Cl的自我聚合,颜色从黄色变为蓝绿色.
- 二氧化碳泡导致701和1152纳米的强吸收波段,归因于金属-金属-联体电荷转移.
- 得到了多态晶体 (红色和蓝绿色);红色形式显示了由碳酸盐桥接的Pt-Pt堆叠的二元体,蓝绿色形式显示了[Pt(L2)(CO3) ]3-单位的线性数组.
- 动力学分析显示了四种物种,最大聚合度至少为32mer.
结论:
- 在水溶液中发现了一种新的CO2触发的复合物的自我聚合途径.
- 这项研究揭示了各种各样的超分子结构的形成,包括二元和线性数组.
- 这项工作突出了二氧化碳作为设计功能基材料的激励剂的潜力.
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