Acta Crystallographica Section C

Crystal Structure Communications

Volume 68, Part 9 (September 2012)

organic compounds

sf3176 scheme

Acta Cryst. (2012). C68, o355-o358    [ doi:10.1107/S0108270112033392 ]

Melaminium (2-carb­oxy­eth­yl)(phen­yl)phosphinate monohydrate

J. Xue, C.-C. Zhao and Z.-Y. Du

Abstract: Cocrystallization of melamine (1,3,5-triazine-2,4,6-triamine, ma) with (2-carb­oxy­eth­yl)(phen­yl)phosphinic acid (H2L) from water affords the title compound, C3H7N6+·C9H10O4P-·H2O or (maH)(HL)·H2O, (I). The phosphinic acid H atom of each H2L mol­ecule is transferred to a melamine mol­ecule. Structural analysis reveals that there are two types of secondary building units in the crystal structure, namely cationic [(maH+)2][infinity] ribbons and anionic {[(HL)2(H2O)2]2-}[infinity] layers, the combination of which through hydro­gen-bond and electrostatic inter­actions, generates a large-scale two-dimensional layered structure. The thick layer is sandwich-like, with the central [(maH+)2][infinity] ribbons being further stabilized by [pi]-[pi] stacking inter­actions. It is also worthy of note that two conformational isomeric R65(24) hydrogen-bond ring motifs can be identified in the {[(HL)2(H2O)2]2-}[infinity] layer.

Formula: C3H7N6+·C9H10O4P-·H2O

cmldisplay filedownload file

Chemical Markup Language (CML) file (6.4 kbytes)
[ doi:10.1107/S0108270112033392/sf3176Isup3.cml ]
Supplementary material


To open or display or play some files, you may need to set your browser up to use the appropriate software. See the full list of file types for an explanation of the different file types and their related mime types and, where available links to sites from where the appropriate software may be obtained.

The download button will force most browsers to prompt for a file name to store the data on your hard disk.

Where possible, images are represented by thumbnails.

 bibliographic record in  format

  Find reference:   Volume   Page   
  Search:     From   to      Advanced search

Copyright © International Union of Crystallography
IUCr Webmaster