M. Ramm et al., HEXAETHYL -TERT-BUTYL-4-HYDROXYPHENYL)METHANETRISPHOSPHONATE AT 173-K, Acta crystallographica. Section C, Crystal structure communications, 51, 1995, pp. 274-277
In contrast to the liquid phase, in the solid state three P-31 NMR sig
nals were found for the title compound, C27H51O10P3. The nonequivalenc
e of the signals can be attributed to a hydrogen bond. The molecules b
onded via hydrogen bonds form chains.