Synthesis and characterization of new Ag(I) coordination networks based on saccharinate and bis(isopropylimidazole) ligands exhibiting very close C-H⋯Ag interactions

详细信息    查看全文

• 作者：Fatih Semerci^a ; ^{fsemerci@klu.edu.tr} ; ^{f_semerci@hotmail.com} ; Onur Şahin^b ; Hakan Erer^c
• 关键词：Coordination polymers ; Saccharinate complexes ; Ag(I) complexes ; C&ndash ; H⋯Ag interaction ; bis(isopropylimidazole) ligands
• 刊名：Polyhedron
• 出版年：2017
• 出版时间：17 February 2017
• 年：2017
• 卷：123
• 期：Complete
• 页码：316-322
• 全文大小：1228 K
• 卷排序：123

文摘

Two Ag(I) coordination networks, formulated as [Ag(sac)(μ-bisopib)]n (1) and [Ag(sac)(μ-pbisopix)]·H2O (2), have been synthesized based on the bis(isopropylimidazole) ligands 1,4-bis(2-isopropyl-1H-imidazol-1-yl)butane (bisopib) and 1,4-bis((2-isopropyl-1H-imidazol-1-yl)methyl)benzene (pbisopix), respectively, along with saccharinate (sac) ligands. All the complexes were characterized by elemental analysis, IR spectroscopy and single-crystal X-ray diffraction studies. The X-ray crystallographic studies of 1 and 2 revealed that the Ag(I) ions are μ-bridged by the bis(isopropylimidazole) derivative ligands to generate 1D zig-zag polymer and dinuclear structures, respectively. As far as we know, complex 1 shows the closest C–H⋯Ag interaction distance among similar literature examples. In complex 1 adjacent 1D coordination polymers are further joined by C–H⋯O hydrogen bonds and π⋯π interactions, generating a 3D supramolecular network. The C–H⋯O hydrogen bonds and C–H⋯π interactions play a crucial role in the architecture of the 3D network of complex 2. Thermal decompositions and photoluminescent properties of the Ag(I) complexes are also discussed herein.