Synthesis and Characterization of Copper(II)–Phosphonate Coordination Chain Array of Metallocages |
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| Authors: | Hui‐Ling Sung Tze‐Min Her Zhi‐Jia Hu Cheng‐Hua Lee |
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| Affiliation: | 1. Division of Preparatory Programs for Overseas Chinese Students, National Taiwan Normal University, New Taipei City, Taiwan;2. Department of Chemical and Materials Engineering, Lunghwa University of Science and Technology, Taoyuan, Taiwan;3. Department of Applied Chemistry, National Chi Nan University, Nantou, Taiwan |
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| Abstract: | Reaction of CuCl2 ·2H2O and 2,4,6‐tris(phosphorylmethyl)mesitylene (H6tpmm) in H2O?DMF solution at room temperature afforded green crystals of [Cu6(H2tpmm)3(H2O)9]·3H2O ( 1 ), which were characterized by Fourier transform infrared (FT‐IR), thermogravimetric (TG) analysis, and powder X‐ray diffraction (PXRD). The solid‐state structure of 1 reveals a one‐dimensional chain array of M4L2 ‐metallocages constituted by the connection of two kinds of metallocage units, namely MC‐A (phosphonate/water‐bridged) and MC‐B (phosphonate‐bridged only), via μ2‐O(phosphonate)? Cu bonds in ABAABA order. The tris‐phosphonate ligand H6tpmm is partially deprotonated to form H2tpmm4?, which displays a cis,cis,cis conformation to bridge six Cu(II) centers via two monodentate phosphonate groups in a η 0:η 0:η 1‐bonding mode and one tridentate phosphonate group in a μ4, η 1:η 1:η 2‐bondingng mode. |
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| Keywords: | Copper Coordination polymer Metallocage Phosphonate |
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