Crystal structure of diethyl {2,2,2-trichloro-1-[2-(1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl)-4-methylpentanamido]ethyl}phosphonate

Abstract

In the title phosphorylated compound, C20H26Cl3N2O6P, the phthalimide unit is essentially planar (r.m.s. deviation = 0.0129 Å) and the O atoms of this unit deviate from the mean plane by 0.080 (3) and 0.041 (3) Å. In the crystal, pairs of molecules are linked by N—H...O and weak C—H...O hydrogen bonds involving the same acceptor atom, forming inversion dimers. In addition, π–π stacking interactions between the phthalimide groups, with a centroid–centroid distance of 3.7736 (13) Å, and further weak C—H...O hydrogen bonds connect the inversion dimers into columns along [0\overline{1}1].

Keywords

• crystal structure
• phtalimide derivatives
• phosphorylated compounds