National Changhua University of Education Institutional Repository : Item 987654321/18938
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题名: Structural Variation in Silver Complexes with N-heterocyclic Carbene Ligands Bearing Amido Functionality
作者: Liao, Chuang-Yi;Chan, Kai-Ting;Chiu, Pei-Ling;Chen, Chih-Yuan;Lee, Hon Man
贡献者: 化學系
日期: 2008-06
上传时间: 2014-08-14T04:29:29Z
出版者: Elsevier
摘要: Silver complexes derived from reactions of silver(I) oxide and imidazolium precursors [L1H1H2]Cl and 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 , 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 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.
關聯: Inorganica Chimica Acta, 361(9-10): 2973-2978
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