• Title/Summary/Keyword: coordination polymer

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Properties of Materials for Treatment of Chromate in Industrial Wastewater (산업폐수중 Chromate이온 처리용 소재특성)

  • 전용진;김영준;홍영호
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.5 no.2
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    • pp.103-107
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    • 2004

  • This paper was studied the properties of materials for treatment of anionic chromate$(CrO4^{-2})$ in industrial wastewater. Ion exchange fiber, poly(acryloamidino diethylene diamine) with ion exchange and adsorption was prepared PAN fiber and diethylenetriamine under $AlC1_3$ catalyst at $120^\circ{C}$ and was analyzed $^{{13}/C-NMR$}$ and FT-IR spectroscopy. The maximum adsorption and the coordination of chromate on chelating fiber were analyzed FT-IR spectra. We proposed the coordination structure with inter/intramolecular bond.

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3-Dimensional Terbium Coordination Polymers: [Tb4(NDC)6(H2O)5]·2H2O and [Tb2(BPDC)3(H2O)3]·H2O(NDC = 2,6-Naphthalenedicarboxylate; BPDC = 2,2'-Bipyridine-4,4'-dicarboxylate)

  • Min, Dong-Won;Lee, Soon-W.
    • Bulletin of the Korean Chemical Society
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    • v.23 no.7
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    • pp.948-952
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    • 2002

  • Three-dimensional terbium coordination polymers with the formulas of [Tb4(NDC)6(H2O)5]${\cdot}$2H2O (1) and [Tb2(BPDC)3(H2O)3]${\cdot}$H2O (2) (NDC = 2,6-naphthalenedicarboxylate; BPDC = 2,2'-bipyridine-4,4'-dicarboxy-late) were prepared by hydrothermal reactions. Both compounds were structurally characterized by X-ray diffraction. Compound 1 has a polymeric structure that contains four distinct Tb metals. Three Tb metals have a square-antiprismatic structure, and the remaining one has a 9-coordinate, triply capped trigonal-prismatic structure. Compound 2 is also a polymer with two distinct Tb metals, both of which have a square-antiprismatic structure. The pyridine nitrogen atoms of the BPDC 2- ligand do not coordinate to the metal centers in compound 2.

  • https://doi.org/10.5012/bkcs.2002.23.7.948 인용 PDF KSCI

Copper(II) Coordination Polymers Assembled from 2-[(Pyridin-3-ylmethyl)amino]ethanol: Structure and Magnetism

  • Han, Jeong-Hyeong;Shin, Jong-Won;Min, Kil-Sik
    • Bulletin of the Korean Chemical Society
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    • v.30 no.5
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    • pp.1113-1117
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    • 2009

  • The one-dimensional coordination polymers, $[Cu^{II}(L)(NO_3)_2]_n$ (1) and {$[Cu^{II}(L)(NO_3)]{\cdot}2H_2O}_{2n} (2), were synthesized from $Cu(NO_3)_2{\cdot}3H_2O$ and 2-[(pyridin-3-ylmethyl)amino]ethanol (L, PMAE) in methanol by controlling the molar ratio of copper(II) salt. Copper(II) ion in 1 has one pyridine group of PMAE whose an aminoethanol group coordinates adjacent copper(II) ion. As the pyridine group is bonded to neighboring copper(II) ion, 1 becomes a one-dimensional chain. Contrary to 1, the structure of 2 shows that the oxygen atom of ethoxide group is bridged between two copper(II) ions, which forms a dinuclear complex. Additionally, the pyridine group of PMAE included one dinuclear unit is coordinated to the other dimeric one each other, which leads to a one-dimensional polymer. Due to the structural differences, 1 exhibits weak antiferromagnetic interaction, while 2 shows strong antiferromagnetic interaction. Due to direct spin exchange via oxygen of PMAE 2 has a much strong spin coupling than 1.

  • https://doi.org/10.5012/bkcs.2009.30.5.1113 인용 PDF KSCI