21. A Series of Banana-Shaped 3d-4f Heterometallic Cluster Substituted Polyoxometalates: Syntheses, Crystal 

Structures, and Magnetic Properties

Ya-Nan Gu, Yi Chen, Yan-Lan Wu, Shou-Tian Zheng, and Xin-Xiong Li*. Inorg. Chem. 2018, 57, 2472-2479