Metal-organodiphosphonates: Structural consequences of introducing aromatic tethering groups. The structures of [Cu(phen){HO3P(C12H8)PO3H}], [{Cu(phen)}2{HO3P(C12H8)PO3H}] and [Cu(terpy){HO3P(C12H8)PO3H}] and of the bimetallic materials [{Cu(LL)}2MoO2{HO3P(C12H8)PO3H}3] (LL=2,2-bipyridine, o-phenanthroline)
摘要:
Hydrothermal reactions were used to prepare three copper-organodiphosphonate compounds and two copper-molybdate-organodiphosphonate chains. Compound 1, [Cu(phen){HO3P(C12H8)PO3H}] is a binuclear Cu(II) compound, while [{Cu(phen)}(2){HO3P(C12H8)PO3H}] (2) is a Cu(I) species with distorted "T" shaped copper coordination geometry. In contrast, [Cu(terpy){HO3P(C12H8)PO3H}]center dot 1.5H(2)O (3.1.5H(2)O) exhibits a zig-zag chain structure. The isomorphous bimetallic diphosphonates, [{Cu(LL)}(2)MoO2 {HO3P(C12H8)PO3H}(3)]center dot H2O (LL = bpy (4.H2O), phen (5.H2O)) also exhibit chain structures, constructed from {Cu2MoO2} clusters, bridging aromatic diphosphonate ligands, and diphosphonates coordinating to the clusters at one terminus and projecting a second pendant terminus. (C) 2010 Elsevier B.V. All rights reserved.