A Zn(II) Coordination Polymer Assembled from Pyridazine-Tetracarboxylate: Single-Crystal X-ray Structure, Hirshfeld Surface Analysis, and Bifunctional Fluorescence Sensing Toward Cu²⁺ and Tetracycline - Youning Hu; Dongfeng Zhao; Miaomiao Zhou; Shiguo Gu; Jingjing Hu (Journal of Fluorescence, 2026)