Side-chain coordination polymers containing redox-active pendants: complexation of ferrocene-based bidentate ligands with M(hfac)2(hfac = 1,1,1,5,5,5-hexafluoroacetylacetonate, M = Mn, Ni, Cu, Zn) and CuX (X = I, Br)

Ryo Horikoshi; Mikio Ueda; Tomoyuki Mochida

doi:10.1039/B212518H

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Side-chain coordination polymers containing redox-active pendants: complexation of ferrocene-based bidentate ligands with M(hfac)₂ (hfac = 1,1,1,5,5,5-hexafluoroacetylacetonate, M = Mn, Ni, Cu, Zn) and CuX (X = I, Br)

Ryo Horikoshi,^a Mikio Ueda^a and Tomoyuki Mochida*^a

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* Corresponding authors

^a Department of Chemistry, Faculty of Science, Toho University, Miyama, Funabashi, Chiba, Japan
E-mail: mochida@chem.sci.toho-u.ac.jp

Abstract

Coordination polymers with redox active pendants, {5-ferrocenylpyrimidine·M(hfac)₂}_n [M = Mn (1a), Ni (1b), Cu (1c), Zn (1d)] and {5-ferrocenylpyrimidine·CuX}_n [X = I (2a), Br (2b)], have been prepared and characterized. In complex 1c, the Cu(II) ions are linked by the bridging ligands to form one-dimensional chains. This complex was shown to exhibit an antiferromagnetic intra-chain interaction, which was analyzed by the Bonner–Fisher model (2J/k_B = −6.3 K). Complex 2a shows a two-dimensional sheet-like structure, in which one-dimensional chains, consisting of the Cu(I) ions and the ligands, are further bridged by iodide anions. These compounds show quasi-reversible redox processes of the ferrocenyl groups in the solid state.

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Supplementary files

Crystal structure data TXT (69K)

Article information

DOI: https://doi.org/10.1039/B212518H
Article type: Paper
Submitted: 17 Dec 2002
Accepted: 27 Jan 2003
First published: 08 May 2003

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New J. Chem., 2003,27, 933-937

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Side-chain coordination polymers containing redox-active pendants: complexation of ferrocene-based bidentate ligands with M(hfac)₂ (hfac = 1,1,1,5,5,5-hexafluoroacetylacetonate, M = Mn, Ni, Cu, Zn) and CuX (X = I, Br)

R. Horikoshi, M. Ueda and T. Mochida, New J. Chem., 2003, 27, 933 DOI: 10.1039/B212518H

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