Materials Data on Co(NO4)2 by Materials Project

Abstract

Co(NO4)2 crystallizes in the monoclinic P2_1/c space group. The structure is two-dimensional and consists of one Co(NO4)2 sheet oriented in the (1, 0, 0) direction. Co is bonded in an octahedral geometry to six O atoms. There are a spread of Co–O bond distances ranging from 1.73–2.05 Å. N is bonded in a trigonal planar geometry to three O atoms. There is one shorter (1.23 Å) and two longer (1.29 Å) N–O bond length. There are four inequivalent O sites. In the first O site, O is bonded in a bent 120 degrees geometry to one Co and one N atom. In the second O site, O is bonded in a bent 120 degrees geometry to one Co and one N atom. In the third O site, O is bonded in a single-bond geometry to one N atom. In the fourth O site, O is bonded in a single-bond geometry to one Co atom.