Fig. 1: Synthesis and structural characterization of CuCPs.

a Illustration of the synthesis process. The yellow spheres in BIM-based molecules stand for the substituent groups (R). b TEM, HADDF, and Cu EDS mapping images of pentyl-CuCP. c The XRD pattern and (d) Cu 2p XPS spectra of pentyl-CuCP. Source data are provided as a Source Data file.