Crystal structure of di-μ-aqua-μ-(pyrazine<i>N</i>,<i>N</i>′-dioxide)-κ<sup>2</sup><i>O</i>:<i>O</i>-bis(diaquasodium) tetraphenylborate dihydrate pyrazine<i>N</i>,<i>N</i>′-dioxide monosolvate
Acta crystallographica. Section E, Crystallographic communications