Diethyl [hydr-oxy(phen-yl)meth-yl]phospho-nate

Abstract

Mol-ecules of the title compound, C(11)H(17)O(4)P, are linked into chiral helical chains along the crystallographic b axis via O-H⋯O hydrogen bonds between the hydr-oxy group and an O atom of the phospho-nate group. One ethyl group is disordered over two positions; the site occupancy factors are ca 0.7 and 0.3.

Fig. 1.

A molecular structure of I with the atom numbering scheme. Displacement ellipsoids are drawn at 30% probability level. Only major part of disoprdered moiety are presented. The H atoms are drawn as a small spheres of arbitrary radius.

Fig. 2.

The chiral helical chain constructed by O—H···O H–bonds.

Fig. 3.

Part of the crystal structure of I, showing chiral helical chains aligned in an antiparallel fashion. The H atoms not involved in H–bonds are omitted for clarity.