Syntheses, characterizations and topology analyses of two 3D copper–organic frameworks from Cu(pyzca)2 (pyzca = pyrazine-2-carboxylate) building block

The solvothermal reactions of CuX (X = CN, SCN) with Cu(pyzca)2 (pyzca = pyrazine-2-carboxylate) afforded compounds Cu2(CN)(pyzca) (1) and CuI(SCN)Cu0.5II(pyzca) (2), respectively. They are both characterized by infrared spectroscopy, elemental analysis and X-ray single-crystal analysis. The structure of 1 exhibits a (728)2(7383) network which has not been reported for the (3, 4)-connected nets, while that of 2 displays a (63)(658) network which belongs to the ins topology.

Graphical abstractTwo copper–organic frameworks, namely, Cu2(CN)(pyzca) (1) and CuI(SCN)Cu0.5II(pyzca) (2), have been isolated from the reaction of CuX (X = CN, SCN) with Cu(pyzca)2 (pyzca = pyrazine-2-carboxylate) under solvothermal conditions, respectively. They are both characterized by infrared spectroscopy, elemental analysis and X-ray single-crystal analysis. The framework of 1 exhibits an unreported (728)2(7383) network for the (3, 4)-connected nets, while that of 2 can be attributed to the ins topology.Figure optionsDownload full-size imageDownload as PowerPoint slide