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Synthesis and Structures of Dinuclear Silver(I) and Copper(II) Complexes of a Semirigid Naphthalene-Bridged Bipyrazolyl Ligand

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Abstract

Reactions of a semirigid bipyrazole, 2,7-bis(4′-methylene-1H-3′,5′-diphenylpyrazole) naphthalene (H2L) with Ag(I) or Cu(II) salts yielded four dinuclear complexes, namely, [Ag2(H2L)2(NO3)2] (1), [Ag2(H2L)2](ClO4)2 (2), [Ag2(H2L)2](BF4)2 (3), and [Cu2(H2L)2Cl4] (4). X-ray analysis illustrates that the three Ag(I) complexes are structurally similar and exhibit a rectangular shape, while the Cu(II) complex features an intramolecular π-stacking between two naphthalene-moieties and is much more compressed compared with those Ag(I) complexes. Two different conformations, namely cis, cis- and trans, trans-, have been observed for this bipyrazolyl ligand in its Ag(I) and Cu(II) complexes, respectively.

Graphical Abstract

A semirigid naphthalene-bridged bipyrazole and its four dinuclear silver(I) or copper(II) complexes have been prepared and the crystal structures of the metal complexes have been studied by X-ray diffraction.

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Acknowledgments

This work has been supported by the NSF of China (Nos. 21071126 and J1210060).

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Authors and Affiliations

  1. College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, 450001, China

    Peng-Cheng Duan, Rui-Wen Jin & Guang Yang

  2. Key Laboratory for Special Functional Materials of the Ministry of Education, Henan University, Kaifeng, 475004, China

    Zi-Xuan Wang

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  1. Peng-Cheng Duan
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  2. Rui-Wen Jin
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  3. Zi-Xuan Wang
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  4. Guang Yang
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Correspondence to Guang Yang.

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Duan, PC., Jin, RW., Wang, ZX. et al. Synthesis and Structures of Dinuclear Silver(I) and Copper(II) Complexes of a Semirigid Naphthalene-Bridged Bipyrazolyl Ligand. J Chem Crystallogr 43, 448–454 (2013). https://doi.org/10.1007/s10870-013-0444-8

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  • DOI: https://doi.org/10.1007/s10870-013-0444-8

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