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Poly[[diaqua(1,10-phenanthroline-κ2N,N′)(μ3-4-sulfonatobenzene-1,2-dicarboxylato-κ4O1:O2,O2′:O4)erbium(III)] dihydrate]

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Author(s): Kou-Lin Zhang | Jian-Guo Lin | Seik Weng Ng

Journal: Acta Crystallographica Section E
ISSN 1600-5368

Volume: 68;
Issue: 2;
Start page: m226;
Date: 2012;
Original page

ABSTRACT
The 4-sulfophthalate trianion in the polymeric complex, {[Er(C8H3O7S)(C12H8N2)(H2O)2]·2H2O}n, bridges three water/phenanthroline-coordinated ErIII ions to form a three-dimensional network architecture. The metal atom is further chelated by a carboxylate group and is covalently bonded to a monodentate carboxylate group as well as to a monodentate sulfonate group in a distorted square antiprismatic geometry. The coordinating water molecules and the lattice water molecules, one of which is disordered over two positions [major component 65 (3)%], are hydrogen bonded to the network.
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