Molecular architectures of cationic [Pd(η3-C3H5)(pzbp2py)]+ complexes and BF4- and CF3SO3- as counteranions (pzbp2py = 2-[3,5-bis(4-butoxyphenyl)pyrazol-1-yl]pyridine)

The crystal structures of the complexes [Pd(η3-C3H5)(pzbp2py)]A (pzbp2py = 2-[3,5-bis(4-butoxyphenyl)pyrazol-1-yl]pyridine; A=BF4-1,CF3SO3-2) have been solved. The crystal packing revealed that the counteranion and the pzbp2py ligand function as a source of hydrogen-bonding interactions, resulting in a 2D network built through weak C-H⋯F/O interactions. The layers so generated exhibited interdigitation between the substituent-chains at the pyrazole group. These compounds constitute new examples of the importance of considering these or other weak interactions when designing supramolecular assemblies.