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Thallium(I) Complexes of Cyano-Substituted Bispyrazolylborate Ligands

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Abstract

Two thallium scorpionate complexes: dihydrobis(3-phenyl-4-cyanopyrazolyl)boratothallium(I) (TlBpPh,4CN), C20H14BN6Tl and dihydrobis(3-tert-butyl-4-cyanopyrazolyl)boratothallium(I) (TlBpt-Bu,4CN), C16H22BN6Tl have been prepared and characterized by X-ray diffraction. Both compounds crystallize in monoclinic space groups, TlBpPh,4CN in P21/n with a = 4.2039(3) Å, b = 26.2211(17) Å, c = 16.611(1) Å, β = 90.199(3)°, and TlBpt-Bu,4CN in P21/c with a = 13.8578(5) Å, b = 9.6741(4) Å, c = 14.2790(5) Å, β = 95.141(2)°. The two complexes show similar structures with elongated metal–ligand bonds and intermolecular interactions between the metal ion and cyano substituents, allowing the potential construction of cyano-bridged coordination polymers.

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Acknowledgements

The authors thank Drs. Reza Mohseni and John Hyatt from the Department of Chemistry, East Tennessee State University (ETSU) for helpful advice on ligands syntheses, and ETSU for financial support. Special thanks go to the reviewers of the paper who brought in helpful comments.

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Authors and Affiliations

  1. Department of Chemistry, East Tennessee State University, P.O. Box 70695, Johnson City, TN, 37614, USA

    Donald M. Johnson & Ningfeng Zhao

  2. Department of Chemistry, Wichita State University, Wichita, KS, USA

    David M. Eichhorn & Tom M. Mwania

  3. Department of Chemistry & Biochemistry, University of California, San Diego, CA, USA

    Curtis E. Moore

Authors
  1. Donald M. Johnson
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  2. David M. Eichhorn
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  3. Curtis E. Moore
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  4. Tom M. Mwania
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  5. Ningfeng Zhao
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Correspondence to Ningfeng Zhao.

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Johnson, D.M., Eichhorn, D.M., Moore, C.E. et al. Thallium(I) Complexes of Cyano-Substituted Bispyrazolylborate Ligands. J Chem Crystallogr 42, 746–751 (2012). https://doi.org/10.1007/s10870-012-0310-0

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  • DOI: https://doi.org/10.1007/s10870-012-0310-0

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