46. Novel 4s–4f heterometallic cluster substituted polyoxometalates based on mixed dilacunary Keggin/open Wells-Dawson  units: 

Syntheses, crystal structure and luminescent study

J. Zhang, H. Yu, Y.N. Gu, Z. Li, X.Xiong Li,* L.Y. Li, S.T. Zheng, Inorg. Chem. Commun, 2019, 110, 107599