固态结构变化的快速且无伪影圆二色性测量

Fast and artifact-free circular dichroism measurement of solid-state structural changes.

作者信息

Kuroda Reiko, Harada Takunori, Takahashi Hiromi

机构信息

Frontier Research Institute, Chubu University, Kasugai, Aichi, Japan.

Faculty of Science and Technology, Graduate School of Engineering, Oita University, Oita City, Japan.

出版信息

Chirality. 2024 Jan;36(1):e3622. doi: 10.1002/chir.23622. Epub 2023 Oct 5.

DOI:10.1002/chir.23622

PMID:37795624

Abstract

A novel chiroptical spectrophotometer, Multichannel (MC)-circular dichroism (CD), which does not require a wavelength scan and provides artifact-free CD spectra in seconds, was developed by solving the incompatibility problem between data acquisition and modulation timescales. The design and instrumentation are compared with the Universal Chiroptical Spectrophotometer (UCS)-1, which can measure artifact-free CD spectra in the solid state. Enantiomeric single crystals composed of achiral components, α-Ni(H O) ・SO , and achiral films with substantial macroscopic anisotropies were measured on both MC-CD and UCS-1 and compared.

摘要

通过解决数据采集和调制时间尺度之间的不兼容问题，开发出了一种新型的手性分光光度计——多通道（MC）圆二色光谱仪（CD），它不需要进行波长扫描，能在数秒内提供无伪像的CD光谱。将其设计和仪器与通用手性分光光度计（UCS）-1进行了比较，UCS-1能够测量固态下无伪像的CD光谱。由非手性成分α-Ni(H₂O)₆・SO₄组成的对映体单晶以及具有显著宏观各向异性的非手性薄膜，在MC-CD和UCS-1上均进行了测量并比较。