Year: 2020
Type: article
Abstract: , d-(+)-xylose (d-Xyl), pentaerythritol (PER), d-fructose (d-Fru) and d-galactose (d-Gal), were adopted as a simple model system with an explicit structure and molecular packing to address the hypothesis. Their concentrated solutions and crystals at 77 K or under ambient conditions demonstrate remarkable multicolor phosphorescence afterglows in response to varying excitation wavelengths, because of the formation of diverse oxygen clusters with sufficiently rigid conformations. The intra- and inter-molecular O⋯O interactions were definitely illustrated by both single crystal structure analysis and theoretical calculations. These findings shed new light on the origin and simple achievement of tunable multicolor phosphorescence in single-component pure organics, and in turn, have strong implications for the emission mechanism of non-conventional luminophores.
Source: Chemical Science
DOI: 10.1039/c9sc06518k
Authors: Qing Zhou, Tianjia Yang, Zihao Zhong, Fahmeeda Kausar, Ziyi Wang, Yongming Zhang, Wang Zhang Yuan
Institution: Shanghai Jiao Tong University
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: diamond
Awards: G310990780, G5766765741
OpenAlex ID: W3005824845