An unprecedented Co-II cuboctahedron as the secondary building unit in a Co-based metal-organic framework

作者：Holmberg Rebecca J; Kay Marika; Korobkov Ilia; Kadantsev Eugene; Boyd Peter G; Aharen Tomoko; Desgreniers Serge; Woo Tom K; Murugesu Muralee^*

来源：Chemical communications, 2014, 50(40): 5333-5335.

DOI：10.1039/c3cc46396f

A cubic metal-organic framework with an unprecedented octanuclear secondary building unit (SBU) was isolated. The obtained SBU is composed of 8 Co-II ions at each vertex, 6 mu(4)-OH groups at each face, and 12 cpt(-) ligands framing the metal core. The cuboctahedra arrange in a ubt framework topology, eliciting a highly symmetrical MOF structure. Magnetic measurements as well as DFT calculations on this crystalline MOF reveal intramolecular anti-ferromagnetic coupling between Co-II ions in the octanuclear SBU.

• 出版日期2014