Three cobalt (II) complexes with triethylenetetraaminehexaacetic acid: From binuclear complex to 3d-4f coordination polymers |
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| Affiliation: | 1. Tianjin Key Laboratory on Technologies Enabling Development of Clinical Therapeutics and Diagnostics (Theranostics), School of Pharmacy, Tianjin Medical University, Tianjin 300070, China;2. Department of Chemistry, Nankai University, Tianjin 300071, China;1. Department of Chemistry, Aligarh Muslim University, Aligarh, 202002, India;2. Recombinant Gene Products Group, International Centre for Genetic Engineering & Biotechnology (ICGEB), New Delhi, 110067, India;1. Department of Chemical Engineering, Tokyo University of Agriculture and Technology, 24-16 Naka-cho 2, Koganei, Tokyo 184-8588, Japan;2. Research Center for Science and Technology, Tokyo University of Agriculture and Technology, Japan;3. Department of Development, Japan Capacitor Industrial Co., Ltd., 23-1 Musashinodai 1, Fussa, Tokyo 197-0013, Japan;4. EM Application Department, EM Business Unit, JEOL Ltd., 1-2 Musashino 3, Akishima, Tokyo 196-8558 Japan;1. Key Laboratory of Functional Inorganic Material Chemistry (MOE), PR China;2. School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, PR China |
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| Abstract: | The cobalt(II)–lanthanide(III) heteronuclear complexes Ln(H2O)4Co2(TTHA)(SCN)2]·H3O+ (H6TTHA = triethylenetetraaminehexaacetic acid, Ln = La(2), Ce(3)) have been synthesized based on a binuclear building block of Co2(H2TTHA)(H2O)2] in Co2(H2TTHA)(H2O)2]·4H2O (1). Single-crystal structures show that complex 1 is a binuclear complex, containing the Co2(H2TTHA)(H2O)2] unit as a useful building block. Adding the La3 + and Ce3 + ions to this synthesis system, two new 3d-4f mixed complexes 2 and 3 were obtained. Complexes 2 and 3 show 3D framework, comprising an infinite 1D (one-dimensional) chain based on heterometallic Ln2Co2 (Ln = La(2), Ce(3)). Further investigations such as IR spectra, UV–vis spectra, TGA, XRD and magnetic properties were studied. |
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