Lauren A. Borkowski

Poly­[[aqua­neodymium(III)]-μ3-decane-1,10-di­carboxyl­ato-μ3-9-carboxy­nonane­carboxyl­ato]

The title compound, [Nd(C(10)H(16)O(4))(C(10)H(17)O(4))(H(2)O)](n), has a novel Nd-organic framework constructed from sebacic acid (C(10)H(18)O(4)) linkers, the longest aliphatic ligand used to date in lanthanide metal-organic framework compounds. The structure contains edge-shared chains of NdO(8)(H(2)O) tricapped trigonal prisms that propagate in the [100] direction, with Nd-O distances in the range 2.414 (4)-2.643 (4) A.

Ionothermal synthesis and magnetic studies of novel two-dimensional metal-formate frameworks.

Five novel two-dimensional frameworks containing formate-bridged metal-centered octahedra are synthesized ionothermally from two ionic liquids previously unused as solvents in hybrid synthesis, 2-hydroxyethylammonium (HEA) formate, and 1-hydroxy-3-proplyammonium (HPA) formate. Templating effects of the cation from each ionic liquid drive the formation of different structures. [NH(3)C(2)H(4)OH](2)[M(CHO(2))(4)] (1: M = Co, 2: M = Ni) exhibit the same stoichiometry and connectivity as their manganese analogue (3: M = Mn), but the manganese form exhibits a different topology from 1 and 2. [NH(3)C(3)H(6)OH][M(CHO(2))(3)(H(2)O)] (4: M = Co, 5: M = Mn) were synthesized using the HPA formate ionic liquid with a metal-formate connectivity related to those of 1-3. Canted antiferromagnetic ordering occurs at low temperatures (1: T(N) = 7.0 K, 2: T(N) = 4.6 K, 3: T(N) = 8.0 K, 4: T(N) = 7.0 K, 5: T(N) = 9.2 K), similar to the magnetic properties previously reported for other metal-formate hybrid materials.