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Coordination of the two potassium ions, showing the bridging nature of the DMF oxygen atom O92. Atoms O2′, O91, O92, K2, N2′, N5′ have been transformed to (−x + 1, −y + 1, −z + 1) and O1 to (−x + 1, −y + 2, −z + 1). The K1⋯K2 distance is 3.7975 (4) Å.
