Acta Crystallographica Section C

Crystal Structure Communications

Volume 69, Part 9 (September 2013)


metal-organic compounds



wq3040 scheme

Acta Cryst. (2013). C69, 1017-1021    [ doi:10.1107/S0108270113019963 ]

One-dimensional CuI and AgI ladder-like coordination polymers supported by 2-ethyl-1-(pyridin-3-ylmethyl)-1H-benzimidazole

L. Gui, G. Liang, H. Zou and Z. Hou

Abstract: The title complexes, poly[[bis[[mu]2-2-ethyl-1-(pyridin-3-ylmethyl)-1H-benzimidazole-[kappa]2N1:N3]copper(I)] tetrafluoroborate acetonitrile monosolvate], {[Cu(C15H15N3)2]BF4·CH3CN}n, (I), and poly[[bis[[mu]2-2-ethyl-1-(pyridin-3-ylmethyl)-1H-benzimidazole-[kappa]2N1:N3]silver(I)] perchlorate methanol monosolvate], {[Ag(C15H15N3)2]ClO4·CH3OH}n, (II), are isostructural and exhibit one-dimensional ladder-like structures in which each asymmetric unit contains one metal ion (Cu+ or Ag+), two 2-ethyl-1-(pyridin-3-ylmethyl)-1H-benzimidazole (bep) ligands, one counter-anion (tetrafluoroborate or perchlorate) and one interstitial molecule (acetonitrile or methanol). Each metal ion exhibits a distorted tetrahedral coordination geometry consisting of two pyridyl and two benzimidazole N atoms from four distinct ligands. Two metal ions are linked by two bep ligands to form a centrosymmetric 18-membered M2(bep)2 metallacycle, while adjacent M2(bep)2 metallacycles are further interlinked by another two bep ligands resulting in a ladder-like array. In the extended structure, four adjacent ladder-like arrays are connected together through C-H...F, O-H...O and C-H...O hydrogen bonds between bep ligands, solvent molecules and counter-anions into a three-dimensional supramolecular structure.

Formula: [Cu(C15H15N3)2]BF4·C2H3N and [Ag(C15H15N3)2]ClO4·CH4O

Keywords: crystal structure; inorganic-organic coordination polymers; 2-ethyl-1-(pyridin-3-ylmethyl)benzimidazole ligand; crystal engineering.


hkldisplay filedownload file

Structure factor file (CIF format) (330.2 kbytes)
[ doi:10.1107/S0108270113019963/wq30401sup2.hkl ]
Contains datablock 1


hkldisplay filedownload file

Structure factor file (CIF format) (349.3 kbytes)
[ doi:10.1107/S0108270113019963/wq30402sup3.hkl ]
Contains datablock 2


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