@article{Liu2026, 
author = {Siyu Liu and Sen Liu and Kunhong Li and Yuzan He and Pengtao Ma and Jingping Wang and Jingyang Niu},
title = {Self-assembly of a giant heterometallic polyoxovanadate with catalytic activity for epoxidation of alkenes},
year = {2026},
journal = {Polyoxometalates},
keywords = {polyoxometalates, giant polyoxovanadate, high-nuclear, catalysis},
url = {https://www.sciopen.com/article/10.26599/POM.2026.9140166},
doi = {10.26599/POM.2026.9140166},
abstract = {The self-assembly of giant polyoxovanadates (POVs) is highly attractive yet extremely challenging, hampered by protonation complexity and structural instability. Here, we obtain the largest POV cluster 1 via self-assembly in aqueous solution, in which tartaric acid serves as a structure-directing agent via synergistic coordination interactions between the metal linkers and the POV motifs. This aesthetically appealing giant compound 1 contains 128 vanadium ions and represents the highest‑nuclear V cluster known in POV chemistry to date. Compound 1 is a tetramer of manganese‐bridged [VV20VIV12(C4H2O6)8(OH)10O66(Cl)]27− units that are unique configurations and potential building blocks. Meanwhile, 1 exhibits excellent catalytic performance in the epoxidation reaction of cyclooctene, achieving 98% conversion and 99% selectivity under oxygen atmosphere. This work not only provides a new topology structure to POM chemistry but also establishes a synthesis strategy for constructing high-nuclear POVs.}
}