Materials Data on CsNaGe2 by Materials Project
CsNaGe2 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. there are two inequivalent Cs sites. In the first Cs site, Cs is bonded in a 8-coordinate geometry to two Na and six Ge atoms. There are one shorter (3.70 Å) and one longer (3.71 Å) Cs–Na bond lengths. There are a spread of Cs–Ge bond distances ranging from 3.78–4.06 Å. In the second Cs site, Cs is bonded in a 9-coordinate geometry to two Na and seven Ge atoms. There are one shorter (3.67 Å) and one longer (3.76 Å) Cs–Na bond lengths. There are a spread of Cs–Ge bond distances ranging from 3.77–4.14 Å. There are two inequivalent Na sites. In the first Na site, Na is bonded in a 1-coordinate geometry to two Cs and six Ge atoms. There are a spread of Na–Ge bond distances ranging from 2.98–3.37 Å. In the second Na site, Na is bonded in a 7-coordinate geometry to two Cs and seven Ge atoms. There are a spread of Na–Ge bond distances ranging from 3.13–3.35 Å. There are four inequivalent Ge sites. In the first Ge site, Ge is bonded in a 10-coordinate geometry to four Cs, three Na, and three Ge atoms. There are a spread of Ge–Ge bond distances ranging from 2.56–2.66 Å. In the second Ge site, Ge is bonded in a 9-coordinate geometry to three Cs, three Na, and three Ge atoms. There are one shorter (2.59 Å) and one longer (2.63 Å) Ge–Ge bond lengths. In the third Ge site, Ge is bonded in a 1-coordinate geometry to three Cs, three Na, and three Ge atoms. The Ge–Ge bond length is 2.65 Å. In the fourth Ge site, Ge is bonded in a 10-coordinate geometry to three Cs, four Na, and three Ge atoms.