Unexpected structural homologies involving hydrogen-bonded and halogen-bonded networks in halopyridinium halometallate salts†
Abstract
The synthesis and crystal structures of three halopyridinium halometallate salts are reported. (4-ClpyH)2[PdCl4]
(1) and (4-ClpyH)2[Cu3Cl8]
(2) adopt tape structures closely resembling a series of hydrogen-bonded structures that contain either dications such as 4,4-bipyridinium or their supramolecular analogues. This requires a short interaction between