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By Graham Smith, Urs D. Wermuth and M. L. Williams


In the structure of title compound [Rb2(C7H4NO2)2(H2O)2]n the centrosymmetric cyclic dimeric repeating unit comprises two irregular RbO4 complex centres bridged by the carboxylate groups of the 5-nitrosalicylate ligands. The coordination about each Rb is completed by a monodentate water molecule and a phenolic O donor which gives a bridging extension [Rb-O range 3.116(7)-3.135(5)A]. The two-dimensional polymeric structure is stabilized by intermolecular water O-H...O(carboxyl) hydrogen bonds and weak inter-ring pi--pi interactions [minimum ring centroid separation, 3.620(4)A]

Topics: 030606 Structural Chemistry and Spectroscopy, crystal structure, 5-nitrosalicylic acid, rubidium, complex polymer
Publisher: Blackwell Publishing on behalf of IUCr
Year: 2011
DOI identifier: 10.1107/S1600536811037561
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