Elucidation of the Factors Governing the Colorimetric and Luminescence-Based Responses of Supported Platinum(II) Salts to Aqueous Anions: Foundation for Effective Anion Sensors

化学结构，动力学和机制的这一奖项支持辛辛那提大学的William Connick教授的工作，以制备含有铂（II）盐的新材料，并确定这些材料对水性阴离子的比色和发光响应的因素。 预计这些研究将导致新的材料和制备方法。 此外，这项研究将提供基本的洞察微观和纳米环境的影响，结构和电子性质的纳入铂盐。 最终，这些研究预计将提供所需的知识，制定合理的策略，设计水溶液阴离子传感装置。 该研究将通过探索一系列合成策略和采用一系列物理方法进行材料表征和离子交换研究来完成。 研究活动将汇集一个由高中生、本科生、研究生和Connick教授组成的研究团队。与辛辛那提公立学校的一位教师合作，将开发这些离子交换材料的实践演示，以帮助向高中生教授基本的化学概念。尽管监测环境和人体中阴离子水平的重要性，但快速、现场和低成本地检测某些离子（例如，氧阴离子）仍然是一个重大挑战。例如，高氯酸盐阴离子会对健康造成危害，因为它会在环境中长时间存在，并干扰甲状腺功能。然而，高氯酸盐检测的灵敏方法是昂贵的和繁琐的现场工作。 在该奖项下进行的研究将为离子传感的新策略奠定基础。 所得的阴离子敏感材料在暴露于某些水性阴离子（例如高氯酸盐）时将显示特征磷光。 原则上，这种阴离子诱导的响应可以用于快速，低成本地检测流动的天然水，地下羽流，工业废水和市政用水中的特定水性阴离子。该奖项下的活动将侧重于开发制备具有这些特性的材料的方法，并确定它们如何工作。 由此产生的见解是一个重要的第一步，对合理的方法，将这些材料的离子传感设备的发展。 因此，这项研究有望实现促进可持续性的新技术。 从这些研究中收集的知识也有望在离子螯合，蒸汽传感，化学催化和非线性光学等领域相关。

This award in the Chemical Structure, Dynamics and Mechanisms supports work by Professor William Connick at the University of Cincinnati to prepare new materials containing platinum(II) salts and to determine the factors that govern the colorimetric and luminescence-based responses of these materials to aqueous anions. These studies are expected to lead to new materials and methods for their preparation. In addition, this research will provide fundamental insight into the influence of micro- and nanoenvironments on structure and electronic properties of the incorporated platinum salts. Ultimately, these studies are expected to provide the knowledge needed to develop rational strategies for designing aqueous anion sensing devices. The research will be accomplished by exploring a series of synthetic strategies and employing a battery of physical methods for materials characterization and investigations of ion exchange. The research activities will bring together a research team composed of high school students, undergraduate students, graduate students, and Professor Connick. In collaboration with a Cincinnati Public Schools teacher, hands-on demonstrations of these ion-exchange materials will be developed in order to help teach fundamental chemical concepts to high students.Despite the importance of monitoring anion levels in the environment and the human body, the rapid, on-site and low-cost detection of certain ions (e.g., oxyanions) remains a significant challenge. For example, perchlorate anion poses a health hazard because it persists for long times in the environment and interferes with thyroid function. However, sensitive methods of perchlorate detection are expensive and cumbersome for field work. The research conducted under this award will lay the foundation for a new strategy for ion sensing. The resulting anion-sensitive materials will exhibit characteristic phosphorescence when exposed to certain aqueous anions, such as perchlorate. In principle, this anion-induced response can be exploited for the rapid, low-cost detection of specific aqueous anions in flowing natural water, underground plumes, industrial effluent, and municipal water. Activities under this award will focus on developing methods for preparing materials with these properties and determining how they work. The resulting insights are an essential first step toward the development of rational approaches for incorporation of these materials in ion sensing devices. Thus, the research is expected to enable new technologies that promote sustainability. The knowledge gathered from these studies also is expected to be relevant in fields such as ion sequestration, vapor-sensing, chemical catalysis, and non-linear optics.