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Synthesis and Crystal Structure of a Novel Five-Coordinate Complex from Zinc(II) and 1,3-Bis[2-(2-Hydroxybenzylideneamino)phenoxy]propan-2-ol Ligand

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Abstract

A novel five-coordinate Zn(II) complex of 1,3-bis[2-(2-hydroxybenzylideneamino)phenoxy]propan-2-ol (BHBAPP), namely [Zn2(BHBAPP)2](Pic)2 · C2H5OH (Pic = picrate) has been synthesized and characterized by elemental analyses, IR spectra and X-ray single-crystal diffraction. The complex crystallizes in the triclinic space group P−1 with cell constants a = 9.8145(9), b = 13.2398(12), c = 14.5058(13) Å; α = 86.4560(10), β = 82.7260(10), γ = 73.0570(10)°, Mr = 1596.08, V = 1,788.0(3) Å3, Z = 1, Dc = 1.482 g/cm3, F(000) = 822, μ = 0.760 mm−1. The structure was solved by direct methods and refined to R = 0.0390 (wR 2 = 0.0996). Examination of the structure shows the Zn atoms are coordinated to four oxygen atoms and one nitrogen atom from BHBAPP ligand to form a distorted trigonal bipyramidal geometry. Further, in the crystal structure [Zn(BHBAPP)]+1 cations and picrate anions are linked together via hydrogen bonding interactions tightly forming a three-dimensional supramolecular. It must be pointed out that the picrate anions play a special role in increasing the dimensionality of the supramolecular architecture.

Index Abstract

The novel five-coordinate Zn(II) complex of formula [Zn2(BHBAPP)2](Pic)2·C2H5OH (BHBAPP = 1,3-bis[2-(2-hydroxybenzylideneamino)phenoxy]propan-2-ol; Pic = picrate) was synthesized and its crystal structure determined. Single crystal X-ray diffraction analysis reveals that the Zn atom shows penta-coordination in a distorted trigonal bipyramidal geometry, and, the flexible BHBAPP ligand acts as a pentadentate ligand and adopts a fold configuration to wrap around the Zn(II) ion.

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Acknowledgments

We are grateful to the National Natural Sciences Foundation of China (Grant No. 20872057) and Natural Science Foundation of Henan Province for financial support (No. 082300420040).

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Authors and Affiliations

  1. College of Chemistry and Chemical Engineering, Luoyang Normal University, 471022, Luoyang, People’s Republic of China

    Baoming Ji, Dongsheng Deng & Jing Liu

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  1. Baoming Ji
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  2. Dongsheng Deng
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  3. Jing Liu
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Correspondence to Baoming Ji.

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Ji, B., Deng, D. & Liu, J. Synthesis and Crystal Structure of a Novel Five-Coordinate Complex from Zinc(II) and 1,3-Bis[2-(2-Hydroxybenzylideneamino)phenoxy]propan-2-ol Ligand. J Chem Crystallogr 39, 781–785 (2009). https://doi.org/10.1007/s10870-009-9572-6

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  • DOI: https://doi.org/10.1007/s10870-009-9572-6

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