Reversible Single-Crystal-to-Single-Crystal Cross-Linking of a Ribbon of Cobalt Citrate Cubanes To Form a 2D Net

摘要

We wish to report a heteromorphous, reversible single-crystal-to-single-crystal transformation involving cross-linking of a 1-D polymer of cobalt cubanes to form a 2-D net. Thermally induced SC-SC transformations involving chemical reactions form an exiguous but promising body of research. Particularly rare are reactions within the coordination spheres of transition metals. Such reactions are known in solids, but they have often been accompanied by catastrophic failure of the crystal, thus preventing the identification of the products. The SC-SC coordination-sphere reactions that have been reported to date involve concerted molecular displacements, or special movements such as Zn hopping inside channels, or reversible bipy/MeOH substitution in the lattice of a Co(II) complex.