rac-1-Phenylethylammonium carboxymethylphosphonate(1-): hydrogen-bonded anion sheets with pendent cations.
In the title compound, C8H12N+.C2H4O5P-, the anions are linked by two O-H...O hydrogen bonds [H...O both 1.75 A, O...O = 2.5781 (15) and 2.5834 (15) A, and O-H...O = 169 and 176 degrees ] into sheets built from alternating R2(2)(8) and R6(6)(32) rings. Each cation is linked to an anion sheet by three N-H...O hydrogen bonds [H...O = 1.88-2.04 A, N...O = 2.7603 (16)-2.9334 (17) A and N-H...O = 162-166 degrees ], such that all the cations pendent from one face of the sheet are of the R configuration, while all those pendent from the opposite face are of the S configuration.
Turkington
David E
DE
School of Chemistry, University of St Andrews, Fife KY16 9ST, Scotland.
Ferguson
George
G
Lough
Alan J
AJ
Glidewell
Christopher
C