title: Poly[triaqua-[μ(4)-3-(4-carboxyl-atophen-oxy)propionato-κO:O':O'':O'''][μ(3)-3-(4-carboxyl-atophen-oxy)propionato-κO:O':O'']dizinc].
abstract: The coordination polymer [Zn(2)(C(10)H(8)O(5))(2)(H(2)O)(3)](n) adopts a layer structure in which the two independent Zn(II) ions exist in trigonal-bipyramidal coordination geometries. One carboxyl-ate dianion binds to a monoaqua-coordinated metal ion through the aliphatic carboxyl-ate end and to the diaqua-coordinated metal ion through the aromatic carboxyl-ate end; the other dianion binds in the reverse manner. Three of the four carboxyl-ate ends of the two dianions are also engaged in bridging inter-actions; these lead to a layer structure parallel to (100). Adjacent layers are linked by O-H(water)⋯O hydrogen bonds into a three-dimensional network.
authors.forename: Shan
authors.initials: S
authors.lastname: Gao
authors.forename: Seik Weng
authors.initials: SW
authors.lastname: Ng