Abstract
In the title compound, [ZnI2(C24H16N6)], the ZnII ion is five-coordinated in a distorted trigonal-bipyramidal geometry by an N,N,N-tridentate 2,3,5,6-tetra-2-pyridinylpyrazine ligand and two iodide ions. The I− ions both occupy equatorial sites. Within the ligand, the dihedral angles between the central pyrazine ring and the two chelating pyridine (py) rings are 14.74 (17) and 26.72 (18)°. The equivalent angles for the non-coordinating py rings are 28.63 (16) and 42.19 (17)°. There is no aromatic π–π stacking in the crystal.
Highlights
In the title compound, [ZnI2(C24H16N6)], the ZnII ion is fivecoordinated in a distorted trigonal-bipyramidal geometry by an N,N,N-tridentate 2,3,5,6-tetra-2-pyridinylpyrazine ligand and two iodide ions
The dihedral angles between the central pyrazine ring and the two chelating pyridine rings are
Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2)
Summary
R factor = 0.037; wR factor = 0.097; data-to-parameter ratio = 22.2. In the title compound, [ZnI2(C24H16N6)], the ZnII ion is fivecoordinated in a distorted trigonal-bipyramidal geometry by an N,N,N-tridentate 2,3,5,6-tetra-2-pyridinylpyrazine ligand and two iodide ions. The I ions both occupy equatorial sites. The dihedral angles between the central pyrazine ring and the two chelating pyridine (py) rings are. The equivalent angles for the noncoordinating py rings are 28.63 (16) and 42.19 (17). There is no aromatic – stacking in the crystal
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