Abstract
Refluxing a mixture of 1,10-phenanthroline, (4-fluorophenyl)thiourea and cadmium(II) chloride did not produce the expected mixed-ligand complex but formed a co-crystal of the two ligands, C12H8N2·C7H7FN2S. The asymmetric unit consists of two pairs of the co-crystal molecules. In each (4-fluorophenyl)thiourea molecule, the planes of the N2CS thiourea units are almost perpendicular to the corresponding fluorobenzene rings, subtending angles of 76.53 (7) and 85.25 (7)°. In the crystal, N—H⋯N and N—H⋯S hydrogen bonds form inversion dimers from the co-crystal pairs. A weak π–π interaction between the phenanthroline rings [centroid–centroid distance = 3.7430 (15)Å] is also observed.
Highlights
Refluxing a mixture of 1,10-phenanthroline, (4-fluorophenyl)thiourea and cadmium(II) chloride did not produce the expected mixed-ligand complex but formed a co-crystal of the two ligands, C12H8N2C7H7FN2S
The asymmetric unit consists of two pairs of the co-crystal molecules
In each (4-fluorophenyl)thiourea molecule, the planes of the N2CS thiourea units are almost perpendicular to the corresponding fluorobenzene rings, subtending angles of 76.53 (7) and 85.25 (7)
Summary
R factor = 0.041; wR factor = 0.121; data-to-parameter ratio = 15.5. Refluxing a mixture of 1,10-phenanthroline, (4-fluorophenyl)thiourea and cadmium(II) chloride did not produce the expected mixed-ligand complex but formed a co-crystal of the two ligands, C12H8N2C7H7FN2S. The asymmetric unit consists of two pairs of the co-crystal molecules. In each (4-fluorophenyl)thiourea molecule, the planes of the N2CS thiourea units are almost perpendicular to the corresponding fluorobenzene rings, subtending angles of 76.53 (7) and 85.25 (7). N—H N and N—H S hydrogen bonds form inversion dimers from the co-crystal pairs. A weak – interaction between the phenanthroline rings [centroid–. Centroid distance = 3.7430 (15)Å] is observed. Symmetry codes: (i) x þ 1; y þ 1; z; x; y þ 1; z þ 1; (iv) x þ 1; y þ 1; z þ 1.
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