Publication Date:
2013-08-07
Description:
The title complexes, poly[[bis[μ 2 -2-ethyl-1-(pyridin-3-ylmethyl)-1 H -benzimidazole-κ 2 N 1 : N 3 ]copper(I)] tetrafluoroborate acetonitrile monosolvate], {[Cu(C 15 H 15 N 3 ) 2 ]BF 4 ·CH 3 CN} n , (I), and poly[[bis[μ 2 -2-ethyl-1-(pyridin-3-ylmethyl)-1 H -benzimidazole-κ 2 N 1 : N 3 ]silver(I)] perchlorate methanol monosolvate], {[Ag(C 15 H 15 N 3 ) 2 ]ClO 4 ·CH 3 OH} 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)-1 H -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 M 2 (bep) 2 metallacycle, while adjacent M 2 (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.
Print ISSN:
0108-2701
Electronic ISSN:
1600-5759
Topics:
Chemistry and Pharmacology
,
Geosciences
,
Physics
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