Engineering Two-Dimensional Crystals

在这个由化学学部大分子、超分子和纳米化学项目资助的项目中，密歇根大学的Adam Matzger将研究驱动表面二维晶体形成的结构和能量因素。该方法是通过化学合成制备一系列结构和/或功能化系统变化的分子，然后研究它们在表面上的吸附和二维结晶。结构信息将从STM， x射线衍射和和频产生振动光谱获得，而热力学信息将从流动微热法获得。更广泛的影响包括培训本科生和研究生，通过出版物和演讲传播成果，通过PI作为密歇根大学斯隆基金会少数族裔博士项目主任的参与扩大参与范围，以及继续开展二维结构数据库的工作。这项工作将增强我们对分子如何在表面和晶体中聚集的基本理解。这样的工作可能会影响到各种表面很重要的领域，包括环境修复、表面润滑和催化。这项研究还将为晶体生长提供有用的见解，这将影响制药、颜料和高能材料等行业。

In this project funded by the Macromolecular, Supramolecular and Nanochemistry Program of the Chemistry Division, Adam Matzger of The University of Michigan will study the structural and energetic factors driving two dimensional crystal formation on surfaces. The approach is to prepare a series of molecules varying systematically in structure and/or functionalized through chemical synthesis and then to study their adsorption and two dimensional crystallization on surfaces. Structural information will be gained from STM, X-ray diffraction, and sum-frequency generation vibrational spectroscopy, while thermodynamic information will be gained from flow microcalorimetry. The broader impacts involve training undergraduate and graduate students, dissemination of results through publications and presentations, broadening participation through the PI's involvement as the director of the University of Michigan Sloan Foundation Minority Ph.D. Program, and continuation of work on the Two-Dimensional Structural Database.This work will enhance our fundamental understanding on how molecules assemble on surfaces and in crystals. Such work could impact a variety of areas in which surfaces are important, including environmental remediation, surface lubrication, and catalysis. The research will also provide useful insights into crystal growth, which would impact industries such as pharmaceuticals, pigments, and energetic materials.