Crystal Structure, Assembly Process, and Single-Molecule Magnet Behavior of A Triangular Prismatic {Co9} Cluster

Using the polydentate ligand of H4btdpa with the CoII ion, a triangular prism-type nine-nucleus cluster [Co9(btdpa)3(CH2OCH2OH)6]·3.5H2O ({Co9}-Eg, H4btdpa = 6,6'-(1H,1'H-[3,3'-bi(1,2,4-triazole)]-5,5'-diyl)dipicolinic acid) was constructed. Ion fragmentation during the formation of {Co9}-Eg...