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. Author manuscript; available in PMC: 2017 Sep 14.
Published in final edited form as: J Mater Chem B. 2016 Jul 26;4(34):5638–5649. doi: 10.1039/C6TB01592A

Figure 13.

Figure 13

Macroscopic sphered formed by mixture of 1,2,4-benzenetricarboxylic acid (47) and 4-hydroxypyridine (48) at 2.5 wt %. Adapted with permission form ref74. Copyright 2009 The Chemical Society of Japan.