[N-(Phosphonomethyl)ethylammonio]methylphosphonate

Abstract

Key indicatorsSingle-crystal X-ray study T = 293 K Mean (C-C) = 0.005 Å R factor = 0.048 wR factor = 0.129 Data-to-parameter ratio = 12.5For details of how these key indicators were automatically derived from the article, see

Zwitterionic (4-benzylpiperidinium-1-ylmethyl)phosphonate

“…The piperidine ring in the titled compound adopt a chair conformation similar to that of cyclohexane. Bond lengths involving phosphorus atom are in good agreement with values found in other similar compounds (Ying et al, 2007;Vivani et al, 2004). The molecules are linked via intermolecular hydrogen bonding to form a onedimensional chain of fused rings (Fig.…”

“…For similar structures, see: Kotek et al (2000); Mao et al (2002); Ying et al (2007); Vivani et al (2004).…”

“…Recently, an increasing attention has been focused on the synthesis and designing of aminodiphosphonic acids and new metal phosphonate inorganic-organic hybrid materials with one-, two-or three-dimensional structures due to their potential applications in porous materials, ion exchange reagents, catalysis, sensors, nonlinear optics materials, antitumour drugs, photovoltaic devices and biotechnologies (Kotek et al, 2000;Ying et al, 2007;Mao et al, 2002;Vivani et al, 2004). The title compounds, (I), Fig.…”

Ammonium hydrogen (RS)-[(5-methyl-2-oxo-1,3-oxazolidin-3-yl)methyl]phosphonate

“…In one of them (major occupancy) the oxazolidine ring (N1/C2/C3/O5/c4) is almost planar [r.m.s. of 0.017 (2) Å] while in the other one it adopts an envelope conformation, with atom C22 deviating within 0.367 33 (Allen et al, 1987;Dudko et al, 2009;Ying et al, 2007;Todorov et al, 2006). The phosphorus atom displays a slightly distorted tetrahedral geometry provided by three oxygen atoms and one carbon atom.…”

“…For general background of the use of phosphonic and aminophosphonic acids as chelating agents in metal extraction and as medicinal compounds, see: Metlushka et al (2009); Naydenova et al (2009); Matczak-Jon & Videnova- Adrabinska (2005). For related structures, see: Dudko et al (2009); Shivachev et al (2005); Todorov et al (2006); Ying et al (2007). For bond-length data, see: Allen et al (1987).…”