Coordination-Driven Self-Assembly of a 2D Graphite-Like Framework Constructed from High-Nuclear Ce10 Cluster Encapsulated Polyoxotungstates

Pengtao Ma; Rong Wan; Yueyan Wang; Feng Hu; Dongdi Zhang; Jingyang Niu; Jingping Wang

doi:10.1021/acs.inorgchem.5b02473

Coordination-Driven Self-Assembly of a 2D Graphite-Like Framework Constructed from High-Nuclear Ce10 Cluster Encapsulated Polyoxotungstates

Inorg Chem. 2016 Jan 19;55(2):918-24. doi: 10.1021/acs.inorgchem.5b02473. Epub 2016 Jan 5.

Authors

Pengtao Ma¹, Rong Wan¹, Yueyan Wang¹, Feng Hu¹, Dongdi Zhang¹, Jingyang Niu¹, Jingping Wang¹

Affiliation

¹ Henan Key Laboratory of Polyoxometalate Chemistry, Institute of Molecular and Crystal Engineering, College of Chemistry and Chemical Engineering, Henan University , Kaifeng, Henan 475004 P. R. China.

PMID: 26731448
DOI: 10.1021/acs.inorgchem.5b02473

Abstract

It is challenging to explore and prepare high-nuclear lanthanide (Ln) cluster-encapsulated polyoxometalates (POMs). Herein, we fabricate an unprecedented Ce10-cluster-embedded polyoxotungstate (POT) (TMA)14H2[Ce(III)(H2O)6]{[Ce(IV)7Ce(III)3O6(OH)6(CO3)(H2O)11][(P2W16O59)]3}·41H2O (1) (TMA = tetramethyleneamine) by coordination-driven self-assembly strategy, which contains the largest Ce cluster [Ce(IV)7Ce(III)3O6(OH)6(CO3)(H2O)11] (Ce10) in all the Ln-containing POM chemistry to date. Self-assembly of the in situ dilacunary [P2W16O59](12-) fragments and mixed Ce(3+) and Ce(4+) ions by means of coordination-driven force results in a novel 2D graphite-like framework constructed from mixed-valent cerium(III/IV) cluster {Ce10} encapsulated poly(POT) units and Ce(3+) ions. The most remarkable feature is that the skeleton of the centrosymmetric Ce10-cluster-embedded POT trimer contains three dilacunary [P2W16O59](12-) fragments trapping a novel {Ce10} cluster via 18 terminal-oxo and three μ4-oxo atoms.

Publication types

Research Support, Non-U.S. Gov't