Synthesis and Crystal Structure of a One-Dimensional Coordination Polymer Containing Unusual Na2Cu2 Tetrametallacyclic Units

• 来源期刊: 中国化学（英文版）
• 年，卷（期）: 2002,（8）
• 页码范围: 766-770
• 页数: 5页
• 语种: 英文

摘要

A unique coordination polymer, {[CuLNa(ClO4)]@ H2O}n (1), was isolated from the solution containing sodium perchlorate and the neutral macrocyclic oxamidocopper(Ⅱ) complex [CuL] (H2L = 2,3-dioxo-5,6:13,14-dibenzo-7,12-bis(ethoxycarbonyl)-1, 4, 8, 11-tetraazacyclotetradeca-7, 11-diene). The complex is composed of [Na2Cu2] tetrametallavycles bridged by perchlorate ions to form infinite one-dimensional chains which are stacked via π-π interactions and weak coordination bonds to result in a two-dimensional supramolecular network. The perclorate ions were found to coordinate to sodium atoms in the unusual bridging chelating tridentate mode of μ2-(O:O′,O").