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Updated: Jul 6, 2026
14:44
Structure and Coordination Determination of Peptide-metal Complexes Using 1D and 2D 1H NMR
Published on: December 16, 2013
Poly[mu-2-aminopyrazine-kappa2N1:N4-mu-cyanido-copper(I)]: a three-dimensional network from laboratory powder
Silvina Pagola1, Robert D Pike, Kathryn deKrafft
1College of William and Mary, Physics Department, Williamsburg, VA 23187, USA. spagol@wm.edu
Summary
This study details a novel copper coordination polymer, [Cu(CN)(2-aminopyrazine)](n), featuring a 3D framework of interpenetrating honeycomb networks. This structure arises from Cu(I) centers linked by cyanide and 2-aminopyrazine ligands.
Area of Science:
- Coordination Chemistry
- Materials Science
- Crystallography
Background:
- Coordination polymers offer tunable properties based on metal-ligand interactions.
- Designing novel network structures is crucial for developing advanced materials.
Purpose of the Study:
- To synthesize and characterize a new copper(I) coordination polymer.
- To elucidate the crystal structure and network topology of the compound.
Main Methods:
- Single-crystal X-ray diffraction was employed to determine the molecular and crystal structure.
- Infrared spectroscopy was used for ligand identification.
Main Results:
- The title compound, [Cu(CN)(2-aminopyrazine)](n), was synthesized and its structure determined.
- The crystal structure reveals a 3D framework composed of two interpenetrating honeycomb-like networks.
- Each Cu(I) center exhibits tetrahedral coordination with two cyanide and two 2-aminopyrazine ligands, forming infinite [Cu-CN] chains bridged by bidentate 2-aminopyrazine ligands.
Conclusions:
- The study successfully synthesized and characterized a novel 3D coordination polymer of copper(I).
- The intricate network topology, featuring interpenetrating honeycomb structures, highlights the versatility of cyanide and 2-aminopyrazine as bridging ligands.
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