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Figure 5
Crystal photographs from selected samples obtained at different pH values; [Sm(DPA)(HDPA)(H2O)2]·4H2O crystals are circled in red and Na3[Sm(DPA)3]·14H2O in blue. (a) Crystals obtained from a solution at pH = 2, where [Sm(DPA)(HDPA)(H2O)2]·4H2O dominates. (b) Crystals obtained from a solution at pH = 5, where an almost equal distribution of [Sm(DPA)(HDPA)(H2O)2]·4H2O and Na3[Sm(DPA)3]·14H2O was found. (c) Crystals obtained from a solution at pH = 7, where more Na3[Sm(DPA)3]·14H2O than [Sm(DPA)(HDPA)(H2O)2]·4H2O crystallized. (d) Crystals obtained from a solution at pH = 10, where Na3[Sm(DPA)3]·14H2O dominates. The images in each panel were selected from three crystallization batches performed at each pH value.

Journal logoCRYSTALLOGRAPHIC
COMMUNICATIONS
ISSN: 2056-9890
Volume 79| Part 7| July 2023| Pages 619-625
https://doi.org/10.1107/S2056989023004814
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