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Syntheses and structures of silver(I) complexes of 4-amino-3,5-dimethyl-4H-1,2,4-triazole and 4-amino-3,5-diethyl-4H-1,2,4-triazole: role of the substituents

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Abstract

Five silver(I) adducts of 4-amino-3,5-diethyl-4H-1,2,4-triazole (4-NH2-3,5-Et2-tz) or 4-amino-3,5-dimethyl-4H-1,2,4-triazole (4-NH2-3,5-Me2-tz), namely [Ag4(4-NH2-3,5-Et2-tz)6](ClO4)4 (1), [Ag(4-NH2-3,5-Et2-tz)2] n ·n(ClO4) (2), [Ag4(4-NH2-3,5-Et2-tz)6](CF3SO3)4 (3), [Ag4(4-NH2-3,5-Me2-tz)6](ClO4)4·4H2O (4) and [Ag4(4-NH2-3,5-Me2-tz)6](CF3SO3)4·2H2O (5), have been prepared and structurally characterised by X-ray single crystal diffraction. Two types of Ag4tz6 cluster have been observed in the structures of compound 1, 3, 4 and 5, which is rationalised based on the minimisation of the steric repulsions between the substituents on the 3,5-positions of triazole ring. Compound 2 displays an infinite chain structure and may be an intermediate or a minor product in the preparation.

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Acknowledgments

This work was supported by the Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry and the Education Department of Henan Province, China.

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Authors and Affiliations

  1. Department of Chemistry, Zhengzhou University, 450001, Zhengzhou, China

    Guang Yang, Ying-Li Wang & Li-Li Liu

  2. Department of Chemistry, University of Malaya, 50603, Kuala Lumpur, Malaysia

    Seik Weng Ng

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  1. Guang Yang
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  2. Ying-Li Wang
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  3. Li-Li Liu
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Correspondence to Guang Yang.

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Yang, G., Wang, YL., Liu, LL. et al. Syntheses and structures of silver(I) complexes of 4-amino-3,5-dimethyl-4H-1,2,4-triazole and 4-amino-3,5-diethyl-4H-1,2,4-triazole: role of the substituents. Transition Met Chem 34, 751–755 (2009). https://doi.org/10.1007/s11243-009-9258-0

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  • DOI: https://doi.org/10.1007/s11243-009-9258-0

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