fig1

Figure 1. Structure of Cu-AD-FA, Cu-AD-AA and Cu-AD-PA. (A) The composition structure of metal clusters; Ball and stick diagram of (B) Cu-AD-FA; (C) Cu-AD-AA; and (D) Cu-AD-PA. The three-dimensional intercrossed channels of (E) Cu-AD-FA; (F) Cu-AD-AA; and (G) Cu-AD-PA. Pore structure displayed by Connolly surface of (H) Cu-AD-FA; (I) Cu-AD-AA; and (J) Cu-AD-PA. Color scheme. White: Hydrogen; gray: carbon; blue: nitrogen; red: oxygen; green: copper.