Research Article: 4-[2-(Hydrogen phosphonato)-2-hydroxy-2-phosphonoethyl]pyridinium

Date Published: April 01, 2011

Publisher: International Union of Crystallography

Author(s): Feng-Lei Wang, Rong-Xin Yuan, Ji-Min Xie.

http://doi.org/10.1107/S1600536811011408

Abstract

The title compound, C7H11NO7P2, exists as a zwitterion in which the positive charge resides on the protonated pyridyl N atom and the negative charge on one of the two phosphate groups. In the crystal, adjacent molcules are linked by O—H⋯O and N—H⋯O hydrogen bonds into a three-dimensional network.

Partial Text

For metal complexes of phospho­nic acids, see: Ma et al. (2008 ▶, 2009 ▶).

 

Source:

http://doi.org/10.1107/S1600536811011408

 

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