Structural variation in silver complexes with N-heterocyclic carbene ligands bearing amido functionality

Chuang Yi Liao, Kai Ting Chan, Pei Ling Chiu, Chih Yuan Chen, Hon Man Lee

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Silver complexes derived from reactions of silver(I) oxide and imidazolium precursors [L1H1H2]Cl and [L2 H21 H2] Cl in DMF were reported. The crystallographic analyses confirmed that all these silver complexes are 1:1 Ag/NHC complexes in the solid states with formulae of Ag(L1H1)Cl and Ag (L2 H21) Cl, respectively. The amido proton (H1) remains intact. Their solid-state structures markedly depend on their N-substitutions on the ligand frameworks. The C-Ag-Cl bond angles are ca. 150° in Ag(L1H1)Cl complexes bearing N-benzyl groups, whereas the angle is linear in Ag (L2 H21) Cl bearing two N-amido functional groups. The obtuse bond angles in Ag(L1H1)Cl permit the formation of infinite 1D staircase motifs via bridging Cl and hydrogen bonding interactions. No such motif exists in the structure with the linear bond angle.

Original languageEnglish
Pages (from-to)2973-2978
Number of pages6
JournalInorganica Chimica Acta
Issue number9-10
Publication statusPublished - 2008 Jun 27


All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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