Exploring photochemical reactions in complex environments

探索复杂环境中的光化学反应

• 批准号: 2615178
• 金额: --
• 依托单位: University of Bristol
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2021
• 资助国家: 英国
• 起止时间: 2021 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2615178
• 关键词: Exploring; photochemical; reactions; complex; environments

The outcome of many photochemical reactions are dependent on a multitude of factors, including the surrounding solvent or protein environment. The environment encompassing chromophores in the condensed phase is not inert, and interacts with the system on a several timescales via different mechanisms.To unravel a deeper understanding of the precise system-bath interactions which alter photochemical reaction dynamics requires molecular level information from studies in the 'wet and noisy' condensed phase environment. These will be probed using ultrafast laser spectroscopies such as 2D electronic and 2D electronic-vibrational spectroscopy which combine broadband spectral resolution with ultrafast (sub-20 fs, where 1 fs = 1 x 10^-15 s) time resolution. Alongside these multidimensional techniques, complimentary transient absorption and time-correlated single photon counting measurements will also be made. This arsenal of experimental techniques will be used to investigate an array of different molecules important to biosensing or photomorphogenesis in plants will be studied.The project falls within the Gas and Solution Phase Reaction Dynamics and Biophysics EPSRC research areas, and is aligned to the Physics of Life Grand Challenge.

许多光化学反应的结果取决于许多因素，包括周围的溶剂或蛋白质环境。在凝聚相的生色团周围的环境是不惰性的，并通过不同的mechanism.To解开一个更深入的了解，改变光化学反应动力学的精确系统浴相互作用的几个时间尺度上的系统相互作用，需要从“潮湿和嘈杂的”凝聚相环境中的研究分子水平的信息。这些将使用超快激光光谱学进行探测，如二维电子和二维电子振动光谱学，它们联合收割机宽带光谱分辨率和超快（低于20 fs，其中1 fs = 1 x 10^-15 s）时间分辨率。除了这些多维技术，还将进行免费的瞬态吸收和时间相关单光子计数测量。这个实验技术的武库将被用来调查一系列不同的分子重要的生物传感或植物中的光形态建成将study.The项目福尔斯属于气相和溶液相反应动力学和生物物理学EPSRC的研究领域，是对齐的生命大挑战物理学。