Miyamoto Yuki, Tobaru Reo, Takahashi Yuiki, Hiramoto Ayami, Iwakuni Kana, Kuma Susumu, Enomoto Katsunari, Baba Masaaki
Research Institute for Interdisciplinary Science, Okayama University, Kita-ku, Okayama, Japan.
Division of Physics, Mathematics, and Astronomy, California Institute of Technology, Pasadena, CA, USA.
Commun Chem. 2022 Nov 29;5(1):161. doi: 10.1038/s42004-022-00783-4.
For over five decades, studies in the field of chemical physics and physical chemistry have primarily aimed to understand the quantum properties of molecules. However, high-resolution rovibronic spectroscopy has been limited to relatively small and simple systems because translationally and rotationally cold samples have not been prepared in sufficiently large quantities for large and complex systems. In this study, we present high-resolution rovibronic spectroscopy results for large gas-phase molecules, namely, free-base phthalocya-nine (FBPc). The findings suggest that buffer-gas cooling may be effective for large molecules introduced via laser ablation. High-resolution electronic spectroscopy, combined with other experimental and theoretical studies, will be useful in understanding the quantum properties of molecules. These findings also serve as a guide for quantum chemical calculations of large molecules.
五十多年来，化学物理和物理化学领域的研究主要旨在了解分子的量子特性。然而，高分辨率振转电子光谱一直局限于相对较小且简单的系统，因为对于大型复杂系统，尚未制备出足够大量的平动和转动冷样品。在本研究中，我们展示了大型气相分子即游离碱酞菁（FBPc）的高分辨率振转电子光谱结果。研究结果表明，缓冲气体冷却对于通过激光烧蚀引入的大分子可能是有效的。高分辨率电子光谱与其他实验和理论研究相结合，将有助于理解分子的量子特性。这些发现也为大分子的量子化学计算提供了指导。
