Molecular sensors and switches ^Polymer Matrices for the Extraction of Metals from Seawater

自旋交叉是具有d4-d7构型的某些第一行过渡金属可以在高自旋态和低自旋态之间切换的现象。[1]自旋态之间的变化可以通过它们的光学性质的变化来观察，并可以由外部刺激如温度、压力等触发。由于具有切换自旋交叉的能力，自旋交叉材料有许多应用，如传感器和分子开关。[2]Fe(II)和(III)可以形成中性、阳离子和阴离子的自旋交叉材料，在文献中鲜为人知的是阴离子自旋交叉材料，尽管它们是与材料同等重要的一类。[3]，[4]本项目的目标是合成和表征阴离子自旋交叉材料，并通过对其超分子聚集的修饰来提高其自旋交叉材料的性能。表征技术包括X射线衍射谱、X射线衍射谱和拉曼光谱。

pin Crossover is the phenomenon in which certain first row transition metals with d4 -d7 configurations can switch between the high and low spin states.[1] The change between spin states can be seen by a change in their optical properties and can be triggered by external stimuli e.g. temperature, pressure etc. Due to there ability to switch spin crossover materials have many applications e.g. sensors and molecular switches.[2] Fe (II) and (III) which can form neutral, cationic and anionic spin crossover materials, in literature there are less known anionic spin crossover materials although these are an equally important class over materials. [3], [4] The aim of this project will be to synthesise and characterise anionic spin crossover materials and to enhance their properties of the spin crossover materials via modification of their supramolecular aggregation. Characterisation techniques would include, PXRD, SCXRD and Raman spectroscopy.