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. 2018 Apr 27;4(4):eaaq1636. doi: 10.1126/sciadv.aaq1636

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Copyright © 2018 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC).

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Fig. 2 — A schematic illustration of the shape-memory effect in X-pcu-3-Zn-3i (left). The structure of X-pcu-3-Zn-3i is composed of axially coordinated L1 linkers that cross-link 2D square grids to form a 3D structure (right).