Citation: Li, Hai-Yang; Wei, Yong-Li; Dong, Xi-Yan; Zang, Shuang-Quan; Mak, Thomas C. W. (2015). Novel Tb-MOF Embedded with Viologen Species for Multi-Photofunctionality: Photochromism, Photomodulated Fluorescence, and Luminescent pH Sensing. Chemistry of Materials, 27, pp. 1327-.