catena-Poly[oxidanium [tris{μ-[amino(iminio)methyl]phosphonato}zincate(II)]]

Elpiniki Chachlaki; Duane Choquesillo-Lazarte; Konstantinos D Demadis

doi:10.1107/S2414314622002474

catena-Poly[oxidanium [tris{μ-[amino(iminio)methyl]phosphonato}zincate(II)]]

IUCrdata. 2022 Mar 10;7(Pt 3):x220247. doi: 10.1107/S2414314622002474. eCollection 2022 Mar.

Authors

Elpiniki Chachlaki¹, Duane Choquesillo-Lazarte², Konstantinos D Demadis¹

Affiliations

¹ Crystal Engineering, Growth and Design Laboratory, Department of Chemistry, University of Crete, Voutes Campus, Crete, GR-71003, Greece.
² Laboratorio de Estudios Cristalográficos, IACT, CSIC-Universidad de Granada, Granada-18100, Spain.

Abstract

The crystal structure of the anionic zinc-[amino-(iminio)meth-yl]phospho-nate one-dimensional coordination polymer, Zn-AIMP, is reported; the negative charge is balanced by an oxidanium cation (H₃O⁺) to give the composition {(H₃O)[Zn(CH₄N₂PO₃)₃]} _n . The building unit of the coordination polymer comprises a divalent Zn²⁺ cation (site symmetry ..) and three [amino(iminio)meth-yl]phospho-nate mono-anionic ligands (point group symmetry m). The AIMP ligand exists in a zwitterionic form with a total charge -1 as the phospho-nate is fully deprotonated (-PO₃ ^2-), while the amino-(iminio)methyl moiety is protonated (H₂N-C-NH₂ ⁺).

Keywords: coordination polymer; crystal structure; one-dimensional network; phosphonate; zinc.

Grants and funding

Funding for this research was provided by: research project ‘Innovative Materials and Applications’ (INNOVAMAT, KA 10694) by the Special Account for Research Grants.