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Syntheses and structures of six-coordinate K[GaIII(Cydta)] · 2H2O and K[GaIII(Pdta)] · 3H2O complexes

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Abstract

The title complexes, K[GaIII(Cydta)] · 2H2O(Cydta = trans-1,2-cyclohexanediaminetetraacetic acid) and K[GaIII(Pdta)] · 3H2O (Pdta = propylenediaminetetraacetic acid), were prepared, and their structures were studied by IR spectra, elemental analyses, NMR spectra, and single-crystal X-ray diffraction techniques. In the K[GaIII(Cydta)] · 2H2O complex, the Ga3+ is six-coordinated by the Cydta ligand yielding an octahedral conformation, and the complex crystallizes in the monoclinic system with the P21/c space group. The crystal data are as follows: a = 16.5039(19), b = 13.1499(16), c = 8.5204(10) Å, β = 101.650(2)°, V = 1811.0(4) Å3, Z = 4, ρ = 1.757 g/cm3, μ = 1.805 mm−1, F(000) = 984, R = 0.0291, and wR = 0.0698 for 3713 observed reflections with I ≥ 2σ(I). In the K[GaIII(Pdta)] · 3H2O complex, the Ga3+ is also six-coordinated by the Pdta ligand yielding an almost standard octahedral conformation, and the complex crystallizes in the orthorhombic system with P212121 space group. The crystal data are as follows: a = 8.8913(10), b = 11.6181(13), c = 17.0227(19) Å, V = 1758.4(3) Å3, Z = 4, ρ = 1.757 g/cm3, μ = 1.862 mm−1, F(000) = 952, R = 0.0288, and wR = 0.0724 for 3556 observed reflections with I ≥ 2σ(I).

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Authors and Affiliations

  1. Department of Chemistry, Liaoning University, Shenyang, 110036, China

    J. Wang, G. R. Gao, Zh. H. Zhang, X. D. Zhang, X. Zh. Liu, Y. M. Kong & Y. Li

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  1. J. Wang
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  2. G. R. Gao
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  3. Zh. H. Zhang
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  4. X. D. Zhang
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  5. X. Zh. Liu
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  6. Y. M. Kong
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  7. Y. Li
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Wang, J., Gao, G.R., Zhang, Z.H. et al. Syntheses and structures of six-coordinate K[GaIII(Cydta)] · 2H2O and K[GaIII(Pdta)] · 3H2O complexes. Russ J Coord Chem 33, 258–264 (2007). https://doi.org/10.1134/S1070328407040045

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  • DOI: https://doi.org/10.1134/S1070328407040045

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