Hydrogen bonding leads the way: Reaction of nonporous crystalline coordination compound 1 with HCl gas results in conversion into the crystalline salt 2 (see picture) following chemisorption and insertion of HCl into CuN bonds. Powder diffraction studies show that [CuBr2Cl2]2− ions formed in 2 are reoriented to maximize the strength of hydrogen bonds and halogen bonds by preferentially involving Cl rather than Br ligands as acceptor sites.
- coordination complexes
- hydrogen bonding
Mínguez Espallargas, G., van de Streek, J., Fernandes, P., Florence, A. J., Brunelli, M., Shankland, K., & Brammer, L. (2010). Mechanistic insights into a gas-solid reaction in molecular crystals: the role of hydrogen bonding. Angewandte Chemie International Edition , 49(47), 8892-8896. https://doi.org/10.1002/anie.201003265