Tailoring the Colorimetric and Luminescence Response of Supported Platinum(II) Salts for Aqueous Ion Sensing

在化学系化学结构、动力学机制B项目资助的这一项目中，William B教授。辛辛那提大学化学系的Connick正在制备一类新材料，其中含有过渡金属络合物的盐，这些盐在暴露于水中的某些离子时会发生明显的颜色变化（以及磷光变化）。这些材料对于开发新一代传感器以监测流动的天然水、地下羽流、工业废水和饮用水中的有毒污染物具有重要意义。 该项目位于分子无机化学和材料科学的接口，因此非常适合年轻科学家的教育和准备，他们将为解决21世纪世纪的科学挑战做出贡献。该项目还为传统上代表性不足的群体的学生提供科学教育和培训。外展活动让当地八年级学生参与动手，探究式的实验室learning.Linear-chain盐组成的堆叠正方形平面铂（II）离子是有吸引力的候选人高度特异性的离子检测系统的发展。 该项目的重点是确定的因素，管理的比色和发光为基础的响应支持铂（II）盐的水溶液阴离子和阳离子。 我们的目标是建立如何合成参数可以用来定制这些材料的性能。此外，这项研究提供了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。 该研究有助于描述金属盐溶解度和水蒸发在离子迁移动力学和热力学以及由此产生的光谱学中的作用。该研究是通过探索一系列的合成策略，并采用一系列的物理方法进行材料表征和离子交换的研究来完成的。最终，这些研究预计将提供所需的基本理解，制定合理的策略，设计水溶液阴离子传感装置。

In this project funded by the Chemical Structure, Dynamic & Mechanism B Program of the Chemistry Division, Professor William B. Connick of the Department of Chemistry at the University of Cincinnati is preparing a new class of materials containing salts of transition metal complexes that undergo a distinct color change (and change in phosphorescence) upon exposure to certain ions in water. These materials are of interest for the development of a new generation of sensors to monitor toxic pollutants in flowing natural water, underground plumes, industrial effluent, and drinking water. The project lies at the interface of molecular inorganic chemistry and materials science, and is therefore well suited to the education and preparation of young scientists who will contribute to solving scientific challenges in the 21st century. The project also provides scientific education and training for students from traditionally underrepresented groups. Outreach activities engage local 8th grade students in hands-on, inquiry-based laboratory learning.Linear-chain salts composed of stacked square planar platinum (II) ions are attractive candidates for the development of highly specific ion detection systems. This project focuses on determining the factors that govern the colorimetric and luminescence-based responses of supported platinum (II) salts to aqueous anions and cations. The objective is to establish how synthetic parameters can be used to tailor the properties of these materials. In addition, this research provides fundamental insight into the influence of micro- and nanoenvironments on structure and electronic properties of the incorporated platinum salts. The research helps to delineate the role of the metal salt solubility and water evaporation in the kinetics and thermodynamics of ion transport and the resulting spectroscopy. The research is accomplished by exploring a series of synthetic strategies and employing a battery of physical methods for materials characterization and investigations of ion exchange. Ultimately, these studies are expected to provide the fundamental understanding needed to develop rational strategies for designing aqueous anion sensing devices.