Komplexe mit substituierten 2,5-Dihydroxy-p-benzochinonen: ZnC6(NO2)2O4·2 H2O/Complexes with Substituted 2,5-Dihydroxy-p-benzochinones: ZnC6(NO2)2O4·2 H2O

Abstract

Abstract ZnC6(NO2)2O4 · 2 H2O was grown in aqueous silicagel. It crystallizes monoclinically (space group I2/c). Zn2+ has CN 6 . It is surrounded in a distorted octahedral fashion by 2 water molecules in cis -position and 4 oxygen atoms of the bis-chelating [C6(NO2)2O4]2- ions. Thereby infinite corrugated chains are formed consisting of Zn2+ and the nitranilate dianions. These chains are interlinked by hydrogen bonds between H2O and the NO2 groups. The NO2 groups are twisted against the ring plane. The bond lengths in the dianion are typical of completely delocalized π-electrons.