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Template or ligand? Different structural behaviours of aromatic amines in combination with zincophosphite networks

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Author(s)

William Holmes, David B. Cordes, Alexandra M. Z. Slawin, William T. A. Harrison

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Abstract

The solution-mediated syntheses and crystal structures of catena-poly[bis(2- amino-3-hydroxypyridinium) [zinc-di-μ-phosphonato] dihydrate], {(C5H7N2O)- [Zn(HPO3)2]·2H2O}n, (I), and poly[(benzene-1,2-diamine)(μ 5-phosphonato)- zinc], [Zn(HPO3)(C6H8N2)]n, (II) are described. The extended structure of (I) features [010] anionic chains of vertex-sharing ZnO4 tetrahedra and HPO3 pseudopyramids; these chains are characterized by disorder over major [occupancy 0.7962 (13)] and minor [0.2038 (13)] components, which can be superimposed on each other by a nominal translational shift. The 2-amino-3- hydroxypyridinium cations and water molecules of crystallization interact with the ZnPO chains by way of numerous O-H⋯O and N-H⋯O hydrogen bonds. The structure of (II) features a direct Zn-N bond to the neutral 1,2-diaminobenzene species as part of ZnO3N tetrahedra as well as HPO3 pseudopyramids. The Zn- and P-centred groupings are linked through their Oatom vertices into infinite (010) sheets and the structure is consolidated by N- H⋯O hydrogen bonds and N-H⋯ interactions. The crystal of (I) chosen for data collection was found to be an inversion twin in a 0.56 (2):0.44 (2) domain ratio.

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Details

Original languageEnglish
Pages (from-to)1411-1416
Number of pages6
JournalActa Crystallographica Section E: Crystallographic Communications
Volume74
Issue number10
DOIs
Publication statusPublished - Oct 2018

    Research areas

  • Crystal structure, Disorder, Ligand, Template, Zinc phosphite

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