研究领域
1.分子间弱相互作用研究 分子间非共价键相互作用在化学、物理过程中扮演着非常重要的角色,也是阐释生物学原理的关键。液体结构、溶剂化效应、分子晶体、物理吸附、超分子化学、生物大分子如DNA和蛋白的三位空间结构以及分子识别都取决于分子内及分子间的非共价键相互作用。本研究组主要采用傅里叶变换微波谱技术,结合理论计算方法,研究分子及分子配合物的转动光谱,以在分子水平获取其精确的几何结构、分子间/内弱键相互作用以及内部动力学过程等信息。这些研究结果可为研究大气化学、新药及新材料设计、生物大分子三维结构、分子自组装等提供理论依据。 2.星际分子实验室光谱研究 星际分子的发现打开了天文学一个丰富广阔的新领域:分子天体物理和分子天体化学,有助于人类了解星云及恒星的环境及演变过程,也是探索生命起源问题的一个重要方向。实验室转动光谱研究与实地射电望远镜观测到的转动跃迁谱线相结合,具有很高的分辨率和准确度,成为星际分子探测的重要方法。本研究组主要利用直流放电技术在线制备出潜在的星际分子,采用高分辨傅里叶变换微波谱技术,结合量子理论计算,进行详细的转动光谱研究,获得准确的光谱和结构参数,为进一步实现星际探测提供重要参考。 3.柔性分子构象行为研究 化合物生物活性本质上是其与受体间的非共价键相互作用过程,而分子构象行为信息的缺失,导致许多药物分子与受体作用模式的各种假设无法得以验证。分子水平上精确认识化合物构象行为是研究其构效关系的基础,也是从本质上认识卤化对化合物生理活性的影响机制的关键。本课题组主要针对分子构象行为的卤化效应,采用高分辨傅里叶变换技术,结合理论计算,从分子水平系统地研究卤化对柔性分子构象行为的影响机制,深入认识其卤化效应的本质,为发展相关理论计算方法提供可靠的实验数据,为理性地进行化合物设计提供重要参考。
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