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  • Title: Dipotassium naphthalene-1,8-dicarboxylate-potassium bicarbonate.
    Author: Fitzgerald LJ, Gerkin RE.
    Journal: Acta Crystallogr C; 1999 Jun 15; 55 ( Pt 6)():918-21. PubMed ID: 10408085.
    Abstract:
    The title substance, tripotassium naphthalene-1,8-dicarboxylate bicarbonate, 3K+.C12H6O4(2-).HCO3-, crystallized in the centrosymmetric space group Pbca. There is a single hydrogen bond. In it, the O and H atoms are ordered and OD...OA is 2.651 (3) A. There is a single significant intermolecular C-H...O interaction, with C...OA = 3.480 (5) A. Each potassium ion is coordinated by an irregular polyhedron of O atoms. These three polyhedra contain eight, eight and five members; each O atom is a member of at least two polyhedra. Structural comparisons are made with tetrapotassium naphthalene-1,4,5,8-tetracarboxylate hexahydrate.
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