Structural Studies of Silver(I) Coordination Polymers with Aryl Iodide Derived Ligands

• Published in: Inorganic chemistry Vol. 39; no. 10; pp. 2146 - 2151
• Main Authors: Ino, Ichiro, Wu, Liang Ping, Munakata, Megumu, Maekawa, Masahiko, Suenaga, Yusaku, Kuroda-Sowa, Takayoshi, Kitamori, Yoshinobu
• Format: Journal Article
• Language: English
• Published: United States American Chemical Society 15.05.2000
• ISSN: 0020-1669; 1520-510X
• DOI: 10.1021/ic991261g

This paper reports novel silver polymers, built with iodine−silver interactions, with interesting structural motifs. Four silver(I) coordination polymers of the aryl iodide derived ligands, triiodobenzoic acid (HL1), tris(4-iodophenyl)amine (L2), and 5,7-diiodo-8-hydroxyquinoline (HL3), have been synthesized and characterized by X-ray crystallography. Treatment of Ag(CH3COO) with HL1 yielded [Ag(L1)] (1), whose structural analysis revealed 2D layers of ladders connected through weak Ag···I interaction. Reactions of AgClO4 and L2 in benzene and nitrobenzene afforded, respectively, two different products, [Ag(L2)(H2O)]ClO4·C6H6 (2) and [Ag(L2)(ClO4)] (3). While the structure of 2 could be described as a 2D layer of square and octagons perpendicular to [100], complex 3 is formed by 2D layers of the same topology of 2 (82·4), alternating as ABAB. In contrast, complex 4, [Ag2(H2L3)(CF3SO3)3], obtained by reaction of Ag(CF3SO3) and HL3, was found to consist of a 2D layer based on columnar arrays AgH2L3−Ag(triflate). The solid-state FT-IR and 109Ag NMR spectra of theses complexes are discussed on the basis of their crystal structures.