Cyanoscorpionates: synthesis and crystallographic characterization of one-dimensional Cu(I) coordination polymers

A new cyanoscorpionate ligand, hydrotris(3-t-butyl-4-cyanopyrazolyl)borate (Tp t-Bu,4CN ) is reported. Both Tp t-Bu,4CN and hydrotris(4-cyano-3-phenylpyrazolyl)borate (Tp Ph,4CN ) form one-dimensional coordination polymers with Cu(I). The polymeric chains align to form channels which, in the case of Tp t-Bu,4CN , can encapsulate solvent molecules, as evidenced by the characterization of one such polymer with encapsulated acetonitrile molecules.