title: Ionothermal synthesis and magnetic studies of novel two-dimensional metal-formate frameworks.
abstract: 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.
authors.affiliation: Department of Chemistry, Stony Brook University, Stony Brook, New York 11794, United States.
authors.forename: Paul J
authors.initials: PJ
authors.lastname: Calderone
authors.forename: Paul M
authors.initials: PM
authors.lastname: Forster
authors.forename: Lauren A
authors.initials: LA
authors.lastname: Borkowski
authors.forename: Simon J
authors.initials: SJ
authors.lastname: Teat
authors.forename: Mikhail
authors.initials: M
authors.lastname: Feygenson
authors.forename: Meigan C
authors.initials: MC
authors.lastname: Aronson
authors.forename: John B
authors.initials: JB
authors.lastname: Parise