Cuprous Halide Complexes of a Variable Length Ligand: Helices, Cluster Chains, and Nets Containing Large Solvated Channels

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• 作者：William J. Gee ; Stuart R. Batten
• 刊名：Crystal Growth & Design
• 出版年：2013
• 出版时间：June 5, 2013
• 年：2013
• 卷：13
• 期：6
• 页码：2335-2343
• 全文大小：484K
• 年卷期：v.13,no.6(June 5, 2013)
• ISSN：1528-7505

文摘

The variable-length azacrown ether bridging ligand N,N鈥?bis(3-pyridyl-methyl)diaza-18-crown-6 (b3pmdc) was reacted with cuprous iodide to give a range of new discrete and polymeric coordination compounds. Six structurally diverse Cu^I(b3pmdc) architectures were isolated, as well as a single oxidized Cu^II(b3pmdc) species. These include the helical one-dimensional (1D) chain [H₄b3pmdc][Cu₁₀I₁₄]路CHCl₃路2H₂O (1), the luminescent linear cluster chain [Cu₄I₆(H₂b3pmdc)] (2), the guest water containing network [Cu₄I₄(Hb3pmdc)₂](1.5ClO₄)(0.5I₃)路3.5H₂O路2.5MeOH (3), the luminescent cubane cluster chain [Cu₄I₄(b3pmdc)₂] (4), the three-dimensional (3D) net [Cu₉I₁₂(Kb3pmdc)₃(H₂O)₄]路9MeOH (5), the dinuclear mixed halide [Cu₂Cl_3.4I_2.6(H₄b3pmdc)] (6), and the cupric 1D chain [CuCl₂(H₂b3pmdc)(MeOH)₂]路2Cl路2MeCN (7). Manipulation of the ligand conformation was achieved by the addition of the alkali metal salt potassium and by varying the pH of the solution with a range of acids (HCl, HClO₄). In the case of 2 and 4, green and yellow luminescent emission was observed, as a result of the varied metal environment.