Poly[triaqua[μ4-3-(4-carboxylatophenoxy)propionato-κ4O:O′:O′′:O′′′][μ3-3-(4-carboxylatophenoxy)propionato-κ3O:O′:O′′]dizinc]

• Published in: Acta Crystallographica Section E
• Main Authors: Shan Gao, Seik Weng Ng
• Format: Article
• Language: English
• Published: International Union of Crystallography 2012-02-01
• Online Access: http://scripts.iucr.org/cgi-bin/paper?S1600536812003200

The coordination polymer [Zn2(C10H8O5)2(H2O)3]n adopts a layer structure in which the two independent ZnII ions exist in trigonal–bipyramidal coordination geometries. One carboxylate dianion binds to a monoaqua-coordinated metal ion through the aliphatic carboxylate end and to the diaqua-coordinated metal ion through the aromatic carboxylate end; the other dianion binds in the reverse manner. Three of the four carboxylate ends of the two dianions are also engaged in bridging interactions; these lead to a layer structure parallel to (100). Adjacent layers are linked by O—Hwater...O hydrogen bonds into a three-dimensional network.