Crystal structure of a one-dimensional looped-chain silver(I) coordination polymer: catena-poly[[silver(I)-bis­{μ-4-[1-(5′-isopropyl-[1,1′:3′,1′′-terphen­yl]-2′-yl)-1H-imidazol-2-yl]pyridine-κ2N:N′}] nitrate methanol monosolvate monohydrate]

Acta Crystallographica Section E: Crystallographic Communications

Moon, S.-H.¹  Kang, Y.²  Park, K.-M.³ 

[1] Department of Food and Nutrition, Kyungnam College of Information and Technology, Busan 47011, Republic of Korea;Division of Science Education, Kangwon National University, Chuncheon 24341, Republic of Korea;Research institute of Natural Science, Gyeongsang National University, Jinju 52828, Republic of Korea

关键词: CRYSTAL STRUCTURE;    SILVER(I);    PYRIDYLIMIDAZOL LIGAND;    LOOPED-CHAIN COORDINATION POLYMER;   

DOI  :  10.1107/S205698901600949X

学科分类：数学（综合）

来源: International Union of Crystallography

【 摘 要 】

In the title compound, {[Ag(C29H25N3)2]NO3·CH3OH·H2O}n, the AgI cation is four-coordinated by two pyridine N atoms and two imidazole N atoms from four individual 4-(1-(5′-isopropyl-[1,1′:3′,1′′-terphen­yl]-2′-yl)-1H-imidazol-2-yl)pyridine (i-pro-pyim) ligands. This gives rise to a highly distorted tetra­hedral geometry with bond angles falling in the range 100.33 (19)–122.76 (19)°. Two crystallographically independent i-pro-pyim ligands (A and B) adopt very similar conformations to one another, such that the dihedral angles between the pyridyl and imidazolyl rings in the two ligands are 40.7 (3) and 42.2 (3)°, respectively. Each i-pro-pyim ligand binds two symmetry-related Ag+ cations, leading to the formation of 14-membered cyclic dimers, in which the AgI atoms are separated by 6.963 (2) Å for the Ag–A2–Ag dimer and 7.020 (2) Å for Ag–B2–Ag. These cyclic dimers are alternately connected to each other by sharing AgI atoms, resulting in the formation of a looped-chain structure extending along the [100] direction. Moreover, adjacent looped chains are connected by inter­molecular π–π inter­actions [centroid-to-centroid distance = 3.689 (4) Å], giving rise to the formation of a two-dimensional supra­molecular network propagating parallel to (110). Several inter­molecular C—H⋯O and O—H⋯O hydrogen bonds further contribute to the stabilization of the crystal structure.

【 授权许可】

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