Abstract
The title compound exists as a 1D coordination polymer consisting of alternating calcium cations and croconate anions. Three water molecules complete the 7-coordination sphere of Ca in the form of a pentagonal bipyramid and form hydrogen bonds which link the polymeric chains into layers and also interconnect the layers. The structure has a triclinic space group P–1 with a = 6.642(3)Å, b = 7.793(4)Å, c = 8.854(5) Å, α = 106.97(5), β = 92.43(4), γ = 106.98(4)°, V = 415.1(4) Å3, and Z = 2.
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Plater, M.J., Foreman, M.R.S.J. & Howie, R.A. Hydrothermal synthesis of catena(triaqua-(μ-2-croconato-O,O′,O″,O‴)-calcium(II)) calcium croconate trihydrate. Journal of Chemical Crystallography 28, 653–656 (1998). https://doi.org/10.1023/A:1022425429153
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DOI: https://doi.org/10.1023/A:1022425429153