Various metal-organic frameworks from 1D, 2D to 3D with 1,6-bis(1,2,4-triazol-1-yl)hexane

Using Zn(II) or Cd(II) salts and the flexible ligand 1,6-bis(1,2,4-triazol-1-yl)hexane(L), a series of novel coordination polymers, {[Zn(L)Cl-2]}(n) (1), [Cd(L)(2)(SCN)(2)](n) (2), {[M(L)(3)](ClO4)(2))(n) (M=Zn, 3; Cd, 4), varying from one-to three-dimensionality, have been pre-pared and their crystal structures determined via X-ray single-crystal diffraction analysis. 1 and 2 are 1D zigzag chain and 2D (4,4) net-work, respectively. Isostructural compounds 3 and 4 are 3D threefold interpenetrating frameworks. This work suggests that metal/ligand ratio and anion play an important role in the self-assembly of 1D, 2D and 3D coordination polymers based on L. (c) 2007 Elsevier B.V. All rights reserved.