Molecular Cage, One-Dimensional Tube and Two-Dimensional Polycatenane obtained from Reactions of Flexible Tripodal Ligand 1,3,5-Tris(imidazol-1-ylmethyl)-2,4,6-trimethylbenzene with Copper Salts

• Published in: Zeitschrift für anorganische und allgemeine Chemie (1950) Vol. 632; no. 10-11; pp. 1890 - 1896
• Main Authors: Meng, Wen-Li, Fan, Jian, Okamura, Taka-aki, Kawaguchi, Hiroyuki, Lv, Yang, Sun, Wei-Yin, Ueyama, Norikazu
• Format: Journal Article
• Language: English
• Published: Weinheim WILEY-VCH Verlag 01.08.2006; WILEY‐VCH Verlag
• Subjects: Copper; Crystal structure; Hydrothermal reaction; Tripodal ligands
• ISSN: 0044-2313; 1521-3749
• DOI: 10.1002/zaac.200500500

Three novel copper complexes, [CuII(titmb)(N3)2]·0.5H2O (1), [CuI3(titmb)2](ClO4)3 (2), and [CuII(titmb)(SO4)]·2.2H2O (3), were obtained by reactions of flexible tripodal ligand 1,3,5‐tris(imidazol‐1‐ylmethyl)‐2,4,6‐trimethylbenzene (titmb) with the corresponding copper(II) salts using hydrothermal method and their structures were determined by X‐ray crystallography. Complex 1 exhibits a one‐dimensional (1D) tube‐like chain structure, while the 2 possesses a M3L2 molecular cage‐like structure, in which the copper atom has a valence of +1, indicating that the CuII is reduced to CuI under the hydrothermal condition. Complex 3 has a polycatenated network structure with inclined interpenetration of (6,3) networks. Ligand titmb adopts a cis,cis,cis‐conformation in all of the three complexes. The results indicate that the anions play important roles in the structure of the complexes. In addition, complex 2 was further investigated by electrospray massspectrometry.