DOE OSTI2020
Rb(Zr3Te4)4 crystallizes in the trigonal P3 space group. The structure is three-dimensional. there are two inequivalent Rb1+ sites. In the first Rb1+ site, Rb1+ is bonded in a 9-coordinate geometry to nine Te2- atoms. There are a spread of Rb–Te bond distances ranging from 3.67–4.12 Å. In the second Rb1+ site, Rb1+ is bonded in a 9-coordinate geometry to nine Te2- atoms. There are a spread of Rb–Te bond distances ranging from 3.67–4.11 Å. There are eight inequivalent Zr+2.58+ sites. In the first Zr+2.58+ site, Zr+2.58+ is bonded to six Te2- atoms to form a mixture of edge, face, and corner-sharing ZrTe6 octahedra. The corner-sharing octahedra tilt angles range from 42–53°. There are a spread of Zr–Te bond distances ranging from 2.90–3.06 Å. In the second Zr+2.58+ site, Zr+2.58+ is bonded to six Te2- atoms to form a mixture of edge, face, and corner-sharing ZrTe6 octahedra. The corner-sharing octahedra tilt angles range from 43–52°. There are a spread of Zr–Te bond distances ranging from 2.90–3.04 Å. In the third Zr+2.58+ site, Zr+2.58+ is bonded to six Te2- atoms to form a mixture of edge, face, and corner-sharing ZrTe6 octahedra. The corner-sharing octahedra tilt angles range from 42–53°. There are a spread of Zr–Te bond distances ranging from 2.91–3.06 Å. In the fourth Zr+2.58+ site, Zr+2.58+ is bonded to six Te2- atoms to form a mixture of edge, face, and corner-sharing ZrTe6 octahedra. The corner-sharing octahedra tilt angles range from 42–54°. There are a spread of Zr–Te bond distances ranging from 2.90–3.10 Å. In the fifth Zr+2.58+ site, Zr+2.58+ is bonded to six Te2- atoms to form a mixture of edge, face, and corner-sharing ZrTe6 octahedra. The corner-sharing octahedra tilt angles range from 43–53°. There are a spread of Zr–Te bond distances ranging from 2.91–3.01 Å. In the sixth Zr+2.58+ site, Zr+2.58+ is bonded to six Te2- atoms to form a mixture of edge, face, and corner-sharing ZrTe6 octahedra. The corner-sharing octahedra tilt angles range from 43–53°. There are a spread of Zr–Te bond distances ranging from 2.91–3.01 Å. In the seventh Zr+2.58+ site, Zr+2.58+ is bonded to six Te2- atoms to form a mixture of edge, face, and corner-sharing ZrTe6 octahedra. The corner-sharing octahedra tilt angles range from 43–54°. There are a spread of Zr–Te bond distances ranging from 2.91–3.00 Å. In the eighth Zr+2.58+ site, Zr+2.58+ is bonded to six Te2- atoms to form a mixture of edge, face, and corner-sharing ZrTe6 octahedra. The corner-sharing octahedra tilt angles range from 43–54°. There are a spread of Zr–Te bond distances ranging from 2.91–3.00 Å. There are twelve inequivalent Te2- sites. In the first Te2- site, Te2- is bonded in a 5-coordinate geometry to one Rb1+ and four Zr+2.58+ atoms. In the second Te2- site, Te2- is bonded in a 4-coordinate geometry to four Zr+2.58+ atoms. In the third Te2- site, Te2- is bonded in a 5-coordinate geometry to one Rb1+ and four Zr+2.58+ atoms. In the fourth Te2- site, Te2- is bonded in a 6-coordinate geometry to two Rb1+ and four Zr+2.58+ atoms. In the fifth Te2- site, Te2- is bonded to six Zr+2.58+ atoms to form distorted face-sharing TeZr6 pentagonal pyramids. In the sixth Te2- site, Te2- is bonded to six Zr+2.58+ atoms to form distorted face-sharing TeZr6 pentagonal pyramids. In the seventh Te2- site, Te2- is bonded in a 4-coordinate geometry to four Zr+2.58+ atoms. In the eighth Te2- site, Te2- is bonded in a 5-coordinate geometry to one Rb1+ and four Zr+2.58+ atoms. In the ninth Te2- site, Te2- is bonded in a 5-coordinate geometry to one Rb1+ and four Zr+2.58+ atoms. In the tenth Te2- site, Te2- is bonded to six Zr+2.58+ atoms to form distorted face-sharing TeZr6 pentagonal pyramids. In the eleventh Te2- site, Te2- is bonded to six Zr+2.58+ atoms to form distorted face-sharing TeZr6 pentagonal pyramids. In the twelfth Te2- site, Te2- is bonded to six Zr+2.58+ atoms to form distorted face-sharing TeZr6 pentagonal pyramids.