title: Solvothermal synthesis, crystal structure, and properties of lanthanide-organic frameworks based on thiophene-2,5-dicarboxylic acid.
abstract: A series of lanthanide-organic framework coordination polymers, {[La(2)(TDC)(2)(NO(3))(H(2)O)(4)](OH)·5H(2)O}(n) (1) and [Ln(TDC)(NO(3))(H(2)O)](n) (TDC = thiophene- 2, 5- dicarboxylic acid; Ln = Nd(2), Sm(3), Eu(4), Gd(5), Tb(6), Dy(7), Ho(8), Er(9), Yb(10)) have been synthesized by solvothermal reaction and characterized by elemental analysis, FT-IR, TG analysis, single-crystal X-ray diffraction and power X-ray diffraction. The single-crystal X-ray diffraction analysis results show that 1 displays a 3-D porous framework with (3,7)-connected {4(10).6(11)}{4(3)} topology. The compounds 2-10 crystallized in the same P2(1)/c space group and exhibits a (3,6)-connected {4.6(2)}(2){4(2).6(10).8(3)} topology, Right-handed and left-handed helical chains coexist in the 2-D layer structure. The luminescence properties of 2-10 and the magnetic properties of 5,7,8,9 were investigated.
authors.affiliation: Laboratory of Coordination Chemistry, Shenyang University of Chemical Technology, Shenyang, 100142, PR China.
authors.forename: Ya-guang
authors.initials: YG
authors.lastname: Sun
authors.forename: Bing
authors.initials: B
authors.lastname: Jiang
authors.forename: Tian-fang
authors.initials: TF
authors.lastname: Cui
authors.forename: Gang
authors.initials: G
authors.lastname: Xiong
authors.forename: Philippe F
authors.initials: PF
authors.lastname: Smet
authors.forename: Fu
authors.initials: F
authors.lastname: Ding
authors.forename: En-jun
authors.initials: EJ
authors.lastname: Gao
authors.forename: Tian-yi
authors.initials: TY
authors.lastname: Lv
authors.forename: Koen
authors.initials: K
authors.lastname: Van den Eeckhout
authors.forename: Dirk
authors.initials: D
authors.lastname: Poelman
authors.forename: Francis
authors.initials: F
authors.lastname: Verpoort