Cao, Yuanle, Dongling Xu, Mingdi Yang, Yang Wang, Feixia Zhou, and Hongping Zhou. 2013. “New Zinc(II) Dyes: Photophysical Properties and Enhanced Two-Photon Absorption”. Asian Journal of Chemistry 25 (12):6900-6906. https://doi.org/10.14233/ajchem.2013.15151.