Porous 2D Copper(I) Complex of 1,3-Dicyanobenzene for Anion Exchange and Reversible Incorporation of Guest Molecules

The 2D porous copper(I) complex with 1,3-dicyanobenzene (DCB), [Cu(DCB)2](PF6)(Me2CO) 1, exhibits channels along axis c, in which one molecule acetone and one anion PF−6 per formula unit are included respectively. The reversible incorporation of guest acetone and acetonitrile, as well as the anion exchange from PF−6 to BF−4 or CF3SO−3, was investigated by thermogravimetric (TG) analysis, 1H NMR spectra and/or infrared absorption spectroscopy. Additionally, the incorporation of benzene and toluene into complex 1 was also discussed. Complex 1 exhibited size selectivity for guest inclusion or anion exchange.