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• W2023243296 abstract "Hydrothermal reactions of solutions containing a vanadate source, an organodiphosphonate, an organonitrogen component, and HF (V/P/O/F) yield a series of oxyfluorovanadium-diphosphonates with charge-compensation provided by organoammonium cations or hydronium cations. While V/P/O/F networks provide the recurrent structural motif, the linkage between the layers and the details of the polyhedral connectivities within the layers are quite distinct for the five structures of this study. [H2pip][V4F4O2(H2O)2{O3P(CH2)3PO3}2] (1) (pip = piperazine) is a conventional three-dimensional (3D) pillared layer structure, whose V/P/O/F networks are buttressed by the propylene chains of the diphosphonate ligands. In contrast, [H2en][V2O2F2(H2O)2{O3P(CH2)4PO3}] (2) and [H2en]2[V6F12(H2O)2{O3P(CH2)5PO3}2 {HO3P(CH2)5PO3H}] (3) are two-dimensional (2D) slablike structures constructed of pairs of V/P/O/F networks sandwiching the pillaring organic tethers of the diphosphonate ligands. Despite the common overall topology, the layer substructures are quite different: isolated {VO5F} octahedra in 2 and chains of corner-sharing {VO(3)F(3)} octahedra in 3. The 3D structure of [H2en]2[V7O6F4(H2O)2{O3P(CH2)2PO3}4].7H2O (4.7H2O) exhibits a layer substructure that contains the ethylene bridges of the diphosphonate ligands and are linked through corner-sharing octahedral {VO6} sites. The connectivity requirements provide large channels that enclose readily removed water of crystallization. The structure of [H3O][V3F2(H2O)2{O3P(CH2)2PO3}2].3.5H2O (5.3.5H2O) is also 3D. Because of the similiarity with 4.7H2O, it exhibits V/P/O/F layers that include the organic tethers of the diphosphonates and are linked through corner-sharing {VO6} octahedra. In contrast to the network substructure of 4.7H2O, which contains binuclear and trinuclear vanadium clusters, the layers of 5.3.5 H2O are constructed from chains of corner-sharing {VO4F2} octahedra. Thermal studies of the open framework materials 4 and 5 reveal that incorporation of fluoride into the inorganic substructures provides robust scaffoldings that retain their crystallinity to 450 degrees C and above. In the case of 4, dehydration does not change the powder X-ray diffraction pattern of the material, which remains substantially unchanged to 450 degrees C. In the case of 5, there are two dehydration steps, that is, the higher temperature process associated with loss of coordinated water. This second dehydration results in structural changes as monitored by powder X-ray diffraction, but this new phase is retained to ca. 450 degrees C. The materials of this study exhibit a range of reduced oxidation states: 1 is mixed valence V(IV)/V(III) while 2 and 4.7H(2)O are exclusively V(IV) and 3 and 5.3.5H2O are exclusively V(III). These oxidation states are reflected in the magnetic properties of the materials. The paramagnetism of 1 arises from the presence of V(III) and V(IV) sites and conforms to the Curie-Weiss law with C = 2.38 em K/(Oe mol) and = -66 K with mu(eff) (300 K) = 4.33 mu(B). Compounds 3-5 exhibit Curie-Weiss law dependence of magnetism on temperature with mu(eff) (300 K) = 5.45 mu(B) for 3 (six V(III) sites), mu(eff) = 4.60 mu(B) for 4 (seven V(IV) sites) and mu(eff) = 4.13 mu(B) for 5 (two V(III) sites). Compound 2 exhibits antiferromagnetic interactions, and the magnetism may be described in terms of the Heisenberg linear antiferromagnetic chain model for V(IV). The effective magnetic moment at 300 K is 2.77 mu(B) (two V(IV) sites)." @default.
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• W2023243296 date "2006-08-23" @default.
• W2023243296 modified "2023-09-25" @default.
• W2023243296 title "Evolution of the Structural Chemistry of Vanadium Organodiphosphonate Networks and Frameworks: Structural Consequences of Fluoride Incorporation in the Development of Stable Phases with Void Channels" @default.
• W2023243296 cites W1560694348 @default.
• W2023243296 cites W1564329470 @default.
• W2023243296 cites W1964537832 @default.
• W2023243296 cites W1969592590 @default.
• W2023243296 cites W1971348414 @default.
• W2023243296 cites W1972590175 @default.
• W2023243296 cites W1974697299 @default.
• W2023243296 cites W1980830219 @default.
• W2023243296 cites W1981826527 @default.
• W2023243296 cites W1994435922 @default.
• W2023243296 cites W2000128861 @default.
• W2023243296 cites W2001027157 @default.
• W2023243296 cites W2001059767 @default.
• W2023243296 cites W2001446650 @default.
• W2023243296 cites W2002129881 @default.
• W2023243296 cites W2003721421 @default.
• W2023243296 cites W2004323094 @default.
• W2023243296 cites W2007588678 @default.
• W2023243296 cites W2008049115 @default.
• W2023243296 cites W2008708346 @default.
• W2023243296 cites W2011786781 @default.
• W2023243296 cites W2012521998 @default.
• W2023243296 cites W2017750325 @default.
• W2023243296 cites W2018311848 @default.
• W2023243296 cites W2018375319 @default.
• W2023243296 cites W2019410105 @default.
• W2023243296 cites W2026244990 @default.
• W2023243296 cites W2032431226 @default.
• W2023243296 cites W2033432928 @default.
• W2023243296 cites W2033509090 @default.
• W2023243296 cites W2036350893 @default.
• W2023243296 cites W2044747739 @default.
• W2023243296 cites W2048188301 @default.
• W2023243296 cites W2050068466 @default.
• W2023243296 cites W2053607877 @default.
• W2023243296 cites W2057363366 @default.
• W2023243296 cites W2059977150 @default.
• W2023243296 cites W2062646682 @default.
• W2023243296 cites W2065493972 @default.
• W2023243296 cites W2077426213 @default.
• W2023243296 cites W2077628518 @default.
• W2023243296 cites W2079260466 @default.
• W2023243296 cites W2090264019 @default.
• W2023243296 cites W2091077649 @default.
• W2023243296 cites W2091861380 @default.
• W2023243296 cites W2095468664 @default.
• W2023243296 cites W2104080836 @default.
• W2023243296 cites W2121904540 @default.
• W2023243296 cites W2123418645 @default.
• W2023243296 cites W2147846548 @default.
• W2023243296 cites W2152811838 @default.
• W2023243296 cites W2156417871 @default.
• W2023243296 cites W2158744361 @default.
• W2023243296 cites W2162734787 @default.
• W2023243296 cites W2194477792 @default.
• W2023243296 cites W2201046859 @default.
• W2023243296 cites W2315787641 @default.
• W2023243296 cites W2891670902 @default.
• W2023243296 cites W2951595034 @default.
• W2023243296 cites W48845056 @default.
• W2023243296 cites W644698076 @default.
• W2023243296 doi "https://doi.org/10.1021/ic0604462" @default.
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