Materials Data on Na2Pd(NO2)4 by Materials Project
(Na(NO2)2)2Pd crystallizes in the orthorhombic Pna2_1 space group. The structure is three-dimensional and consists of four palladium molecules and one Na(NO2)2 framework. In the Na(NO2)2 framework, there are two inequivalent Na1+ sites. In the first Na1+ site, Na1+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of Na–O bond distances ranging from 2.42–2.79 Å. In the second Na1+ site, Na1+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Na–O bond distances ranging from 2.44–3.01 Å. There are four inequivalent N3+ sites. In the first N3+ site, N3+ is bonded in a distorted bent 120 degrees geometry to two O2- atoms. Both N–O bond lengths are 1.25 Å. In the second N3+ site, N3+ is bonded in a distorted bent 120 degrees geometry to two O2- atoms. Both N–O bond lengths are 1.25 Å. In the third N3+ site, N3+ is bonded in a bent 120 degrees geometry to two O2- atoms. There is one shorter (1.25 Å) and one longer (1.26 Å) N–O bond length. In the fourth N3+ site, N3+ is bonded in a bent 120 degrees geometry to two O2- atoms. There is one shorter (1.25 Å) and one longer (1.26 Å) N–O bond length. There are eight inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted trigonal planar geometry to two equivalent Na1+ and one N3+ atom. In the second O2- site, O2- is bonded in a 2-coordinate geometry to two Na1+ and one N3+ atom. In the third O2- site, O2- is bonded in a distorted trigonal planar geometry to two equivalent Na1+ and one N3+ atom. In the fourth O2- site, O2- is bonded in a 3-coordinate geometry to two Na1+ and one N3+ atom. In the fifth O2- site, O2- is bonded in a 1-coordinate geometry to two Na1+ and one N3+ atom. In the sixth O2- site, O2- is bonded in a 2-coordinate geometry to two Na1+ and one N3+ atom. In the seventh O2- site, O2- is bonded in a distorted trigonal planar geometry to two Na1+ and one N3+ atom. In the eighth O2- site, O2- is bonded in a 2-coordinate geometry to one Na1+ and one N3+ atom.