Highly symmetric networks derived from cubane-related octametallic complexes of a new oxyanion of carbon, C4O7(4-), each molecule attached to eight neighbors by 24 equivalent hydrogen bonds

Journal of the American Chemical Society
Brendan F AbrahamsRichard Robson

Abstract

Aqueous reaction mixtures containing dihydroxyfumaric acid, M2+ (M = Zn, Co, Fe, and Mg) and acetate ion at room temperature give crystals, suitable for single-crystal X-ray diffraction studies, of composition [(MII)8(C4O7)4(H2O)12].24H2O, in which the C4O74- component is the alkoxide-tricarboxylate tetra-anionic species -OC(CO2-)3, a new oxyanion of carbon. All four compounds crystallize in the body-centered space group I3m with cell dimensions a approximately 15.0 A. Discrete electrically neutral [(MII)8(C4O7)4(H2O)12] molecules are present, with a cubane-like core consisting of four trigonal prismatic metal centers and four mu3-alkoxo bridges from separate -OC(CO2-)3 ligands. The octametallic molecule is highly symmetrical, with four fac tri-aqua octahedral metal centers tetrahedrally appended to the central cubane-based [(MII)8(C4O7)4 ]8- unit. The molecules assemble in the crystal in a body-centered cubic fashion, each being attached to its eight neighbors by 24 equivalent hydrogen bonds-an extreme example of self-complementarity.

Citations

Mar 25, 2010·Dalton Transactions : an International Journal of Inorganic Chemistry·Sudip Mohapatra, Tapas Kumar Maji
Sep 8, 2010·Dalton Transactions : an International Journal of Inorganic Chemistry·Shengqun SuHongjie Zhang
Feb 19, 2019·Dalton Transactions : an International Journal of Inorganic Chemistry·Wei MengWeijian Xu
Jul 13, 2011·Angewandte Chemie·Vasudeva Naidu SagiRamanarayanan Krishnamurthy
Dec 5, 2012·Dalton Transactions : an International Journal of Inorganic Chemistry·Tomáš DavidIvan Lukeš
Jun 6, 2014·Dalton Transactions : an International Journal of Inorganic Chemistry·Larry R FalvelloMilagros Tomás
Sep 15, 2007·Inorganic Chemistry·Russell K FellerAnthony K Cheetham
Apr 27, 2011·Journal of the American Chemical Society·James W LeelandJason B Love
Jan 28, 2012·Journal of the American Chemical Society·Vasudeva Naidu SagiRamanarayanan Krishnamurthy

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