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SrCaAg2 crystallizes in the orthorhombic Immm space group. The structure is one-dimensional and consists of two SrCaAg2 ribbons oriented in the (1, 0, 0) direction. Sr is bonded in a linear geometry to two equivalent Ag atoms. Both Sr–Ag bond lengths are 3.18 Å. Ca is bonded in a linear geometry to two equivalent Ag atoms. Both Ca–Ag bond lengths are 2.99 Å. Ag is bonded in a linear geometry to one Sr and one Ca atom.
Sr3CaAg4 crystallizes in the monoclinic Pm space group. The structure is three-dimensional. there are nine inequivalent Sr sites. In the first Sr site, Sr is bonded in a 7-coordinate geometry to seven Ag atoms. There are a spread of Sr–Ag bond distances ranging from 3.32–3.40 Å. In the second Sr site, Sr is bonded in a 7-coordinate geometry to seven Ag atoms. There are a spread of Sr–Ag bond distances ranging from 3.28–3.44 Å. In the third Sr site, Sr is bonded in a 7-coordinate geometry to seven Ag atoms. There are a spread of Sr–Ag bond distances ranging from 3.29–3.44 Å. In the fourth Sr site, Sr is bonded in a 7-coordinate geometry to seven Ag atoms. There are a spread of Sr–Ag bond distances ranging from 3.30–3.44 Å. In the fifth Sr site, Sr is bonded in a 7-coordinate geometry to seven Ag atoms. There are a spread of Sr–Ag bond distances ranging from 3.31–3.41 Å. In the sixth Sr site, Sr is bonded in a 7-coordinate geometry to seven Ag atoms. There are a spread of Sr–Ag bond distances ranging from 3.29–3.43 Å. In the seventh Sr site, Sr is bonded in a 7-coordinate geometry to seven Ag atoms. There are a spread of Sr–Ag bond distances ranging from 3.24–3.39 Å. In the eighth Sr site, Sr is bonded in a 7-coordinate geometry to seven Ag atoms. There are a spread of Sr–Ag bond distances ranging from 3.24–3.38 Å. In the ninth Sr site, Sr is bonded in a 7-coordinate geometry to seven Ag atoms. There are a spread of Sr–Ag bond distances ranging from 3.24–3.39 Å. There are three inequivalent Ca sites. In the first Ca site, Ca is bonded in a 7-coordinate geometry to seven Ag atoms. There are a spread of Ca–Ag bond distances ranging from 3.22–3.39 Å. In the second Ca site, Ca is bonded in a 7-coordinate geometry to seven Ag atoms. There are a spread of Ca–Ag bond distances ranging from 3.18–3.44 Å. In the third Ca site, Ca is bonded in a 7-coordinate geometry to seven Ag atoms. There are a spread of Ca–Ag bond distances ranging from 3.22–3.39 Å. There are eleven inequivalent Ag sites. In the first Ag site, Ag is bonded in a 9-coordinate geometry to six Sr, one Ca, and two equivalent Ag atoms. Both Ag–Ag bond lengths are 2.96 Å. In the second Ag site, Ag is bonded in a 9-coordinate geometry to six Sr, one Ca, and two equivalent Ag atoms. Both Ag–Ag bond lengths are 2.96 Å. In the third Ag site, Ag is bonded in a 9-coordinate geometry to six Sr, one Ca, and two equivalent Ag atoms. Both Ag–Ag bond lengths are 2.96 Å. In the fourth Ag site, Ag is bonded in a 9-coordinate geometry to seven Sr and two equivalent Ag atoms. Both Ag–Ag bond lengths are 2.97 Å. In the fifth Ag site, Ag is bonded in a 9-coordinate geometry to seven Sr and two equivalent Ag atoms. In the sixth Ag site, Ag is bonded in a 9-coordinate geometry to five Sr, two equivalent Ca, and two equivalent Ag atoms. In the seventh Ag site, Ag is bonded in a 9-coordinate geometry to five Sr, two equivalent Ca, and two equivalent Ag atoms. In the eighth Ag site, Ag is bonded in a 9-coordinate geometry to five Sr, two equivalent Ca, and two equivalent Ag atoms. In the ninth Ag site, Ag is bonded in a 9-coordinate geometry to three Sr, four Ca, and two equivalent Ag atoms. Both Ag–Ag bond lengths are 3.03 Å. In the tenth Ag site, Ag is bonded in a 9-coordinate geometry to five Sr, two equivalent Ca, and two equivalent Ag atoms. Both Ag–Ag bond lengths are 3.00 Å. In the eleventh Ag site, Ag is bonded in a 9-coordinate geometry to five Sr, two equivalent Ca, and two equivalent Ag atoms.