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The crystal structure of N5O3 cryptand

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Abstract

The title compound, 1,4,13,22,27-pentaaza-6,9:17,20:29,32-tribenzo-10,16,33-trioxabicyclo [11,11,11] pentatriacontane (C33H45N5O3), is synthesized by [1+1] tripodal condensation of trialdehyde (4,4′,4″-triformyl-triphenoxytriethylamine) with tris(2-aminoethyl)amine (tren) in the presence of La(NO3)3·6H2O as a template, followed by reduction with KBH4. There are six unique molecules in the unit. The molecule has a threefold symmetry axis passing through the bridgehead nitrogen atoms in the structure. As a result, only one strand of the cryptand molecule is present in the asymmetric unit. The structure presents an endoendo conformation, with the distance between the two bridgehead nitrogen atoms of 10.030(8) Å.

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Authors and Affiliations

  1. State Key Laboratory of Non-Food Biomass and Enzyme Technology, National Engineering Research Center for Non-Food Biorefinery, Guangxi Key Laboratory of Biorefinery, Guangxi Academy of Sciences, Nanning, Guangxi, P. R. China

    L.-X. Pan

  2. School of Chemistry and Chemical Engeneering, Guangxi University, Guangxi, P. R. China

    B. Zhang, Y. Su & Z. Ma

Authors
  1. L.-X. Pan
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  2. B. Zhang
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  3. Y. Su
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  4. Z. Ma
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Corresponding author

Correspondence to Z. Ma.

Additional information

The text was submitted by the authors in English.

Zhurnal Strukturnoi Khimii, Vol. 58, No. 3, pp. 635-637, March-April, 2017.

Original Russian Text © 2017 L.-X. Pan, B. Zhang, Y. Su, Z. Ma.

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Pan, LX., Zhang, B., Su, Y. et al. The crystal structure of N5O3 cryptand. J Struct Chem 58, 608–610 (2017). https://doi.org/10.1134/S0022476617030258

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  • DOI: https://doi.org/10.1134/S0022476617030258

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