Dichlorido(2,3-di-2-pyridylpyrazine-κ2N2,N3)palladium(II)

Kwang Ha

doi:10.1107/s1600536811043753

Abstract

The PdII ion in the title complex, [PdCl2(C14H10N4)], has a slightly distorted square-planar environment defined by the two pyridine N atoms of the chelating 2,3-di-2-pyridylpyrazine ligand and two chloride anions. The pyridine rings are considerably inclined to the least-squares plane of the PdCl2N2 unit [maximum deviation = 0.073 (1) Å], with dihedral angles of 64.19 (9) and 66.55 (9)°. The pyrazine ring is almost perpendicular to this plane and the dihedral angle is 88.2 (1)°. Two independent intermolecular C—H⋯Cl hydrogen bonds, both involving the same Cl atom as a hydrogen-bond acceptor, give rise to chains running along the a and b axes, generating a layer structure extending parallel to (001). Molecules are stacked in columns along the a axis. Along the b axis, successive molecules stack in opposite directions.

Highlights

The PdII ion in the title complex, [PdCl2(C14H10N4)], has a slightly distorted square-planar environment defined by the two pyridine N atoms of the chelating 2,3-di-2-pyridylpyrazine ligand and two chloride anions
The pyridine rings are considerably inclined to the least-squares plane of the
The pyrazine ring is almost perpendicular to this plane and the dihedral angle is

Summary

Kwang Ha

R factor = 0.028; wR factor = 0.075; data-to-parameter ratio = 18.6. The PdII ion in the title complex, [PdCl2(C14H10N4)], has a slightly distorted square-planar environment defined by the two pyridine N atoms of the chelating 2,3-di-2-pyridylpyrazine ligand and two chloride anions. The pyridine rings are considerably inclined to the least-squares plane of the. PdCl2N2 unit [maximum deviation = 0.073 (1) Å], with dihedral angles of 64.19 (9) and 66.55 (9). The pyrazine ring is almost perpendicular to this plane and the dihedral angle is. Two independent intermolecular C—H Cl hydrogen bonds, both involving the same Cl atom as a hydrogen-bond acceptor, give rise to chains running along the a and b axes, generating a layer structure extending parallel to (001). Molecules are stacked in columns along the a axis.

Related literature

This work was supported by the Priority Research Centers

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