DOE OSTI2020
SrAgGe crystallizes in the monoclinic Cm space group. The structure is three-dimensional. there are five inequivalent Sr sites. In the first Sr site, Sr is bonded in a 12-coordinate geometry to six Ag and six Ge atoms. There are a spread of Sr–Ag bond distances ranging from 3.30–3.38 Å. There are a spread of Sr–Ge bond distances ranging from 3.21–3.49 Å. In the second Sr site, Sr is bonded in a 12-coordinate geometry to five Ag and seven Ge atoms. There are a spread of Sr–Ag bond distances ranging from 3.21–3.32 Å. There are a spread of Sr–Ge bond distances ranging from 3.30–3.48 Å. In the third Sr site, Sr is bonded in a 12-coordinate geometry to six Ag and six Ge atoms. There are a spread of Sr–Ag bond distances ranging from 3.27–3.56 Å. There are a spread of Sr–Ge bond distances ranging from 3.31–3.48 Å. In the fourth Sr site, Sr is bonded in a 12-coordinate geometry to six Ag and six Ge atoms. There are a spread of Sr–Ag bond distances ranging from 3.28–3.54 Å. There are a spread of Sr–Ge bond distances ranging from 3.34–3.51 Å. In the fifth Sr site, Sr is bonded in a 12-coordinate geometry to seven Ag and five Ge atoms. There are a spread of Sr–Ag bond distances ranging from 3.20–3.95 Å. There are a spread of Sr–Ge bond distances ranging from 3.26–3.80 Å. There are five inequivalent Ag sites. In the first Ag site, Ag is bonded in a 10-coordinate geometry to six Sr, one Ag, and three Ge atoms. The Ag–Ag bond length is 2.96 Å. There are two shorter (2.72 Å) and one longer (3.19 Å) Ag–Ge bond lengths. In the second Ag site, Ag is bonded in a 10-coordinate geometry to six Sr, one Ag, and three Ge atoms. There are two shorter (2.74 Å) and one longer (3.24 Å) Ag–Ge bond lengths. In the third Ag site, Ag is bonded in a 10-coordinate geometry to six Sr, one Ag, and three Ge atoms. The Ag–Ag bond length is 2.86 Å. There are two shorter (2.68 Å) and one longer (3.15 Å) Ag–Ge bond lengths. In the fourth Ag site, Ag is bonded in a 10-coordinate geometry to six Sr and four Ge atoms. There are a spread of Ag–Ge bond distances ranging from 2.69–3.25 Å. In the fifth Ag site, Ag is bonded in a 9-coordinate geometry to six Sr, one Ag, and two equivalent Ge atoms. Both Ag–Ge bond lengths are 2.68 Å. There are five inequivalent Ge sites. In the first Ge site, Ge is bonded in a 9-coordinate geometry to six Sr and three Ag atoms. In the second Ge site, Ge is bonded in a 10-coordinate geometry to six Sr, three Ag, and one Ge atom. The Ge–Ge bond length is 2.52 Å. In the third Ge site, Ge is bonded in a 10-coordinate geometry to six Sr, three Ag, and one Ge atom. The Ge–Ge bond length is 2.56 Å. In the fourth Ge site, Ge is bonded in a 10-coordinate geometry to six Sr, three Ag, and one Ge atom. In the fifth Ge site, Ge is bonded in a 10-coordinate geometry to six Sr, three Ag, and one Ge atom.