Materials Data on Nb3(Bi5Cl9)2 by Materials Project
Nb3Bi7Cl18(Bi)3 crystallizes in the trigonal P3 space group. The structure is one-dimensional and consists of six bismuth molecules and one Nb3Bi7Cl18 ribbon oriented in the (0, 0, 1) direction. In the Nb3Bi7Cl18 ribbon, there are two inequivalent Nb2+ sites. In the first Nb2+ site, Nb2+ is bonded in an octahedral geometry to six Cl1- atoms. There are a spread of Nb–Cl bond distances ranging from 2.37–2.51 Å. In the second Nb2+ site, Nb2+ is bonded in an octahedral geometry to six Cl1- atoms. There are a spread of Nb–Cl bond distances ranging from 2.38–2.50 Å. There are six inequivalent Bi+1.20+ sites. In the first Bi+1.20+ site, Bi+1.20+ is bonded in a trigonal planar geometry to three equivalent Cl1- atoms. All Bi–Cl bond lengths are 2.87 Å. In the second Bi+1.20+ site, Bi+1.20+ is bonded in a distorted hexagonal planar geometry to six Cl1- atoms. There are three shorter (2.88 Å) and three longer (3.35 Å) Bi–Cl bond lengths. In the third Bi+1.20+ site, Bi+1.20+ is bonded in a distorted bent 120 degrees geometry to two Cl1- atoms. There are one shorter (3.40 Å) and one longer (3.42 Å) Bi–Cl bond lengths. In the fourth Bi+1.20+ site, Bi+1.20+ is bonded in a bent 120 degrees geometry to two Cl1- atoms. There are one shorter (3.42 Å) and one longer (3.43 Å) Bi–Cl bond lengths. In the fifth Bi+1.20+ site, Bi+1.20+ is bonded in a distorted bent 120 degrees geometry to two Cl1- atoms. There are one shorter (3.42 Å) and one longer (3.43 Å) Bi–Cl bond lengths. In the sixth Bi+1.20+ site, Bi+1.20+ is bonded in a bent 120 degrees geometry to two Cl1- atoms. Both Bi–Cl bond lengths are 3.43 Å. There are twelve inequivalent Cl1- sites. In the first Cl1- site, Cl1- is bonded in a single-bond geometry to one Nb2+ atom. In the second Cl1- site, Cl1- is bonded in a distorted water-like geometry to one Nb2+ and one Bi+1.20+ atom. In the third Cl1- site, Cl1- is bonded in a single-bond geometry to one Nb2+ atom. In the fourth Cl1- site, Cl1- is bonded in a single-bond geometry to one Nb2+ and two Bi+1.20+ atoms. In the fifth Cl1- site, Cl1- is bonded in a single-bond geometry to one Nb2+ and two Bi+1.20+ atoms. In the sixth Cl1- site, Cl1- is bonded in a single-bond geometry to one Nb2+ atom. In the seventh Cl1- site, Cl1- is bonded in a single-bond geometry to one Nb2+ and one Bi+1.20+ atom. In the eighth Cl1- site, Cl1- is bonded in a single-bond geometry to one Nb2+ atom. In the ninth Cl1- site, Cl1- is bonded in a distorted water-like geometry to one Nb2+ and one Bi+1.20+ atom. In the tenth Cl1- site, Cl1- is bonded in a single-bond geometry to one Nb2+ and two Bi+1.20+ atoms. In the eleventh Cl1- site, Cl1- is bonded in a single-bond geometry to one Nb2+ and two Bi+1.20+ atoms. In the twelfth Cl1- site, Cl1- is bonded in a single-bond geometry to one Nb2+ atom.