Role of Fluorine Interactions in the Solid State Structure and Photophysical Properties of 3,5-Disubstituted-2-(2′-pyridyl)pyrrole Pd(II) Complexes

The analysis of the crystal structures of two new mononuclear
Pd­(II)
compounds, containing 3,5-disubstituted-2-(2′-pyridyl)­pyrrole
ligands, reveals that the use of fluoroaliphatic (1)
versus aliphatic (2) substituting groups on the HLn ligand induces substantial changes in their
supramolecular architectures. Despite the common molecular geometry
suitable for the formation of mixed “aryl embraces”,
“tetris-like” columnar heterochiral (1)
and helicoidal chiral (2) organizations are formed. The
resulting supramolecular packing affects their solid state photophysical
properties.