Bond length-reactivity correlations for sulfate monoesters. The crystal structure of potassium 4-nitrophenyl sulfate, C6H4KNO6S

Potassium 4-nitrophenyl sulfate, C6H4KNO6S, crystallizes in the orthorhombic system, Pbca space group, with cell parameters: a=6.990(1), b=13.130(1), c=19.180(1) Å, V=1760.3(3) Å3. The asymmetric unit consists of a discrete ionic pair of the salt. The packing shows the K+ ion surrounded by eight oxygen atoms from six different p-nitrophenyl sulfate anions. In addition, the structure-structure and structure-reactivity correlations relevant to sulfate transfer process are discussed.