Materials Data on Cu5Sn4 by Materials Project

Cu5Sn4 crystallizes in the monoclinic C2 space group. The structure is three-dimensional. there are eight inequivalent Cu sites. In the first Cu site, Cu is bonded in a 11-coordinate geometry to six Cu and five Sn atoms. There are a spread of Cu–Cu bond distances ranging from 2.64–2.75 Å. There are a spread of Cu–Sn bond distances ranging from 2.64–2.77 Å. In the second Cu site, Cu is bonded in a 9-coordinate geometry to three Cu and six Sn atoms. There are a spread of Cu–Cu bond distances ranging from 2.55–2.71 Å. There are a spread of Cu–Sn bond distances ranging from 2.72–2.81 Å. In the third Cu site, Cu is bonded in a 10-coordinate geometry to four Cu and six Sn atoms. There are one shorter (2.60 Å) and one longer (2.67 Å) Cu–Cu bond lengths. There are a spread of Cu–Sn bond distances ranging from 2.74–2.87 Å. In the fourth Cu site, Cu is bonded in a 11-coordinate geometry to six Cu and five Sn atoms. There are a spread of Cu–Cu bond distances ranging from 2.66–2.73 Å. There are a spread of Cu–Sn bond distances ranging from 2.65–2.78 Å. In the fifth Cu site, Cu is bonded in a distorted q6 geometry to three Cu and six Sn atoms. There are one shorter (2.55 Å) and one longer (2.59 Å) Cu–Cu bond lengths. There are a spread of Cu–Sn bond distances ranging from 2.66–2.89 Å. In the sixth Cu site, Cu is bonded in a distorted q6 geometry to four Cu and six Sn atoms. The Cu–Cu bond length is 2.60 Å. There are a spread of Cu–Sn bond distances ranging from 2.74–2.91 Å. In the seventh Cu site, Cu is bonded in a 10-coordinate geometry to four Cu and six Sn atoms. The Cu–Cu bond length is 2.59 Å. There are a spread of Cu–Sn bond distances ranging from 2.67–2.94 Å. In the eighth Cu site, Cu is bonded in a distorted q6 geometry to three Cu and six Sn atoms. There are a spread of Cu–Sn bond distances ranging from 2.71–2.87 Å. There are seven inequivalent Sn sites. In the first Sn site, Sn is bonded in a 7-coordinate geometry to seven Cu atoms. In the second Sn site, Sn is bonded in a 8-coordinate geometry to eight Cu atoms. In the third Sn site, Sn is bonded in a 7-coordinate geometry to seven Cu atoms. In the fourth Sn site, Sn is bonded in a 8-coordinate geometry to eight Cu atoms. In the fifth Sn site, Sn is bonded in a 7-coordinate geometry to seven Cu atoms. In the sixth Sn site, Sn is bonded in a 7-coordinate geometry to seven Cu atoms. In the seventh Sn site, Sn is bonded in a 6-coordinate geometry to six Cu atoms.