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Hexaaqua-(5,7-dihydr-oxy-4-oxo-2-phenyl-4H-chromene-8-sulfonato)calcium(II) 5,7-dihydr-oxy-4-oxo-2-phenyl-4H-chromene-8-sulfonate trihydrate.


ABSTRACT: In the title compound, [Ca(C(15)H(9)O(7)S)(H(2)O)(6)](C(15)H(9)O(7)S)·3H(2)O, the Ca centre has a distorted deca-hedral geometry, coordinated by six O atoms from water mol-ecules and one sulfonate O atom. The crystal structure is stabilized by aromatic π-π inter-actions, with centroid-centroid distances of 3.765 (5) and 3.896 (5) Å between the phenyl ring and the benzene ring of the chromene unit of neighbouring mol-ecules. In addition, the stacked mol-ecules exhibit inter- and intra-molecular O-H⋯O hydrogen bonds, including the uncoordinated water mol-ecules.

SUBMITTER: Liu B 

PROVIDER: S-EPMC2959999 | biostudies-literature |

REPOSITORIES: biostudies-literature

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