title: A purely lanthanide-based complex exhibiting ferromagnetic coupling and slow magnetic relaxation behavior.
abstract: Two lanthanide-organic frameworks, {Ln(TDA)(1.5)(H(2)O)(2)}(n) [TDA = thiophene-2,5-dicarboxylic acid anion; Ln = Gd (1), Dy (2)], were structurally and magnetically characterized. The magnetic studies revealed that the ferromagnetic coupling existed between adjacent lanthanide ions in 1 and 2, and only 2 displays slow magnetic relaxation behavior with tau(0) = 2.4 x 10(-8) s and DeltaE/k(B) = 44.2 K. To our knowledge, it is rather rare that ferromagnetic coupling and slow magnetic relaxation coexist in three-dimensional lanthanide-based frameworks.
authors.affiliation: Department of Chemistry, Nankai University, Tianjin 300071, People's Republic of China.
authors.forename: Zhi
authors.initials: Z
authors.lastname: Chen
authors.forename: Bin
authors.initials: B
authors.lastname: Zhao
authors.forename: Peng
authors.initials: P
authors.lastname: Cheng
authors.forename: Xiao-Qing
authors.initials: XQ
authors.lastname: Zhao
authors.forename: Wei
authors.initials: W
authors.lastname: Shi
authors.forename: You
authors.initials: Y
authors.lastname: Song
mesh_terms: D003998:Dicarboxylic Acids / Q000737:chemistry*; D028581:Lanthanoid Series Elements / Q000737:chemistry*; D008280:Magnetics; D008958:Models, Molecular; D009942:Organometallic Compounds / Q000737:chemistry*; D013696:Temperature; D013876:Thiophenes / Q000737:chemistry*
chemical_list: D003998:Dicarboxylic Acids; D028581:Lanthanoid Series Elements; D009942:Organometallic Compounds; D013876:Thiophenes