(Nitrato-κ O)(2,2':6',2''-terpyridine-κ3 N, N', N'')palladium(II) nitrate

Abstract

The title complex, [Pd(NO₃)(C₁₅H₁₁N₃)]NO₃, comprises a cationic Pd^II complex and a nitrate anion. In the complex, the Pd^II cation is four-coordinated in a distorted square-planar coordination geometry defined by the three N atoms of the tridentate 2,2':6',2''-terpyridine ligand and one O atom from the NO₃ ^- anion. In the crystal, the complex mol-ecules are stacked in columns along the a axis being connected by π-π stacking [closest inter-centroid separation between pyridyl rings = 3.878 (3) Å]. The connections between columns and anions to sustain a three-dimensional architecture are C-H⋯O hydrogen bonds.

Keywords: 2,2′:6′,2′′-terpyridine; crystal structure; nitrate salt; palladium(II) complex; square-planar structure; tridentate ligand.

Figure 1

The mol­ecular structure of the title complex showing the atom labelling and displacement ellipsoids drawn at the 50% probability level for non-H atoms.

Figure 2

A view of the packing in the crystal of the title complex, viewed approximately along the a axis. Hydrogen-bonding inter­actions are drawn as dashed lines.