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. 2020 May 6;8:395. doi: 10.3389/fchem.2020.00395

Figure 1.

Figure 1

Partial views of the X-ray structures ICSD-26059 (A), ICSD-422962 (B), ICSD-18128 (C), ICSD-26626 (D), ICSD-71119 (E), and ICSD-391093 (F), Distances in Å. NgBs represented as dashed lines.