The title compounds, tripotassium tetrachlorozincate nitrate, K-3[ZnCl4]NO3
, and triammonium tetrachlorozincate nitrate, (NH4)(3)[ZnCl4]NO3, are newly
discovered double-anion salts containing ZnCl42- and NO3- ions. The compou
nds are isomorphous and contain minimally distorted anions. Hydrogen bonds
to both Cl and O atoms in the ammonium compound have negligible distorting
influence on anion geometries and appear only to orient the NH4+ cations.