Fig. 2: Crystal structure of NCU-1. | Nature Communications

Fig. 2: Crystal structure of NCU-1.

From: Rationally designed nanotrap structures for efficient separation of rare earth elements over a single step

Fig. 2

a The coordination environment of Zn2+. b The 2D extended framework of NCU-1. c The simplified topological structure of 2-fold interpenetration (different colors represent different single sets of the interpenetration). d The two fold-interpenetrated structure of NCU-1 produces numerous square small pockets. (Zn, magenta; C, dark gray; N, blue; O, red).

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