Synthesis and Crystal Structure of a 3-D Netlike Supramolecular Cobalt Picrate Complex With 2, 6-bis(benzimidazol-2-yl)pyridine

Abstract

A novel complex of cobalt picrate with 2, 6-bis(benzimidazol-2-yl)pyridine (L), has been prepared and characterized by elemental analysis, IR spectroscopy, and single-crystal X-ray diffraction. The complex crystallizes in the monoclinic system, space group c2/c with a = 21.8756(6) Å, b = 12.2995(3) Å, c = 27.4827(7) Å, β = 95.6060(10)°, and Z = 4. The structure was refined to the final R ₁ = 0.0708. The complex units are linked by π-π interactions and hydrogen bonds to give infinite two-dimensional (2-D) supramolecular layers, which are further linked by the intermolecular hydrogen bonds to form a three-dimensional (3-D) netlike supramolecule.

Keywords:

• 2
• 6-bis(benzimidazol-2-yl)pyridine
• crystal structure
• cobalt picrate complex
• π-π interactions

Acknowledgments

This work was supported by Scientific Research Fund of Zhejiang Provincial Education Department (Project No. Y201121314).