We report here a structurally perfect kagomé lattice {[Cu(bpy)](SiF)(melamine)} (1), where bpy is 4,4'-bipyridine and [SiF] is a hexafluorosilicate anion. In comparison to general 1D linear, 2D layered and 3D cubic metal-organic frameworks, by using Cu nodes and bpy ligands, a perfect kagomé lattice was synthesized by introducing symmetrical melamine molecules. Magnetic susceptibility and low-temperature heat capacity measurements indicated weak antiferromagnetic interactions between the spins and no long-range magnetic ordering to 0.7 K. Using symmetrical melamine molecules can be considered as a challenging synthetic strategy to afford new topological materials.
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