Tm3Y(Pd2Sn)4 is Tungsten-derived structured and crystallizes in the trigonal R-3m space group. There are three inequivalent Tm sites. In the first Tm site, Tm(1) is bonded in a body-centered cubic geometry to one Pd(2), one Pd(3), three equivalent Pd(1), three equivalent Pd(4), three equivalent Sn(1), and three equivalent Sn(2) atoms. In the second Tm site, Tm(2) is bonded in a body-centered cubic geometry to two equivalent Pd(1); six Pd(2,2); and six equivalent Sn(1) atoms. In the third Tm site, Tm(1) is bonded in a body-centered cubic geometry to one Pd(2), one Pd(3), three equivalent Pd(1), three equivalent Pd(4), three equivalent Sn(1), and three equivalent Sn(2) atoms. Y(1) is bonded in a body-centered cubic geometry to two equivalent Pd(4); six Pd(3,3); and six equivalent Sn(2) atoms. There are eight inequivalent Pd sites. In the first Pd site, Pd(2) is bonded in a body-centered cubic geometry to one Tm(1), three equivalent Tm(2), and four equivalent Sn(1) atoms. In the second Pd site, Pd(3) is bonded in a body-centered cubic geometry to one Tm(1), three equivalent Y(1), and four equivalent Sn(2) atoms. In the third Pd site, Pd(1) is bonded in a body-centered cubic geometry to one Tm(2), three equivalent Tm(1), one Sn(2), and three equivalent Sn(1) atoms. In the fourth Pd site, Pd(2) is bonded in a body-centered cubic geometry to one Tm(1), three equivalent Tm(2), and four equivalent Sn(1) atoms. In the fifth Pd site, Pd(3) is bonded in a body-centered cubic geometry to one Tm(1), three equivalent Y(1), and four equivalent Sn(2) atoms. In the sixth Pd site, Pd(4) is bonded in a body-centered cubic geometry to three equivalent Tm(1), one Y(1), one Sn(1), and three equivalent Sn(2) atoms. In the seventh Pd site, Pd(2) is bonded in a body-centered cubic geometry to one Tm(1), three equivalent Tm(2), and four equivalent Sn(1) atoms. In the eighth Pd site, Pd(3) is bonded in a body-centered cubic geometry to one Tm(1), three equivalent Y(1), and four equivalent Sn(2) atoms. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a distorted body-centered cubic geometry to three equivalent Tm(1); three equivalent Tm(2); one Pd(4); three equivalent Pd(1); and four Pd(2,2) atoms. In the second Sn site, Sn(2) is bonded in a distorted body-centered cubic geometry to three equivalent Tm(1); three equivalent Y(1); one Pd(1); three equivalent Pd(4); and four Pd(3,3) atoms.
Tm3Y(Pd2Sn)4 is Tungsten-derived structured and crystallizes in the trigonal R-3m space group. There are three inequivalent Tm sites. In the first Tm site, Tm(1) is bonded in a body-centered cubic geometry to one Pd(2), one Pd(3), three equivalent Pd(1), three equivalent Pd(4), three equivalent Sn(1), and three equivalent Sn(2) atoms. The Tm(1)-Pd(2) bond length is 2.92 Å. The Tm(1)-Pd(3) bond length is 2.89 Å. All Tm(1)-Pd(1) bond lengths are 2.94 Å. All Tm(1)-Pd(4) bond lengths are 2.93 Å. All Tm(1)-Sn(1) bond lengths are 3.38 Å. All Tm(1)-Sn(2) bond lengths are 3.38 Å. In the second Tm site, Tm(2) is bonded in a body-centered cubic geometry to two equivalent Pd(1); six Pd(2,2); and six equivalent Sn(1) atoms. Both Tm(2)-Pd(1) bond lengths are 2.91 Å. All Tm(2)-Pd(2,2) bond lengths are 2.94 Å. All Tm(2)-Sn(1) bond lengths are 3.38 Å. In the third Tm site, Tm(1) is bonded in a body-centered cubic geometry to one Pd(2), one Pd(3), three equivalent Pd(1), three equivalent Pd(4), three equivalent Sn(1), and three equivalent Sn(2) atoms. The Tm(1)-Pd(2) bond length is 2.92 Å. The Tm(1)-Pd(3) bond length is 2.89 Å. All Tm(1)-Pd(1) bond lengths are 2.94 Å. All Tm(1)-Pd(4) bond lengths are 2.93 Å. All Tm(1)-Sn(1) bond lengths are 3.38 Å. All Tm(1)-Sn(2) bond lengths are 3.38 Å. Y(1) is bonded in a body-centered cubic geometry to two equivalent Pd(4); six Pd(3,3); and six equivalent Sn(2) atoms. Both Y(1)-Pd(4) bond lengths are 2.94 Å. All Y(1)-Pd(3,3) bond lengths are 2.94 Å. All Y(1)-Sn(2) bond lengths are 3.39 Å. There are eight inequivalent Pd sites. In the first Pd site, Pd(2) is bonded in a body-centered cubic geometry to one Tm(1), three equivalent Tm(2), and four equivalent Sn(1) atoms. The Pd(2)-Tm(1) bond length is 2.92 Å. There is one shorter (2.91 Å) and three longer (2.94 Å) Pd(2)-Sn(1) bond lengths. In the second Pd site, Pd(3) is bonded in a body-centered cubic geometry to one Tm(1), three equivalent Y(1), and four equivalent Sn(2) atoms. The Pd(3)-Tm(1) bond length is 2.89 Å. All Pd(3)-Y(1) bond lengths are 2.94 Å. There are three shorter (2.93 Å) and one longer (2.94 Å) Pd(3)-Sn(2) bond length. In the third Pd site, Pd(1) is bonded in a body-centered cubic geometry to one Tm(2), three equivalent Tm(1), one Sn(2), and three equivalent Sn(1) atoms. The Pd(1)-Sn(2) bond length is 2.91 Å. All Pd(1)-Sn(1) bond lengths are 2.94 Å. In the fourth Pd site, Pd(2) is bonded in a body-centered cubic geometry to one Tm(1), three equivalent Tm(2), and four equivalent Sn(1) atoms. All Pd(2)-Tm(2) bond lengths are 2.94 Å. There is one shorter (2.91 Å) and three longer (2.94 Å) Pd(2)-Sn(1) bond lengths. In the fifth Pd site, Pd(3) is bonded in a body-centered cubic geometry to one Tm(1), three equivalent Y(1), and four equivalent Sn(2) atoms. The Pd(3)-Tm(1) bond length is 2.89 Å. There are three shorter (2.93 Å) and one longer (2.94 Å) Pd(3)-Sn(2) bond length. In the sixth Pd site, Pd(4) is bonded in a body-centered cubic geometry to three equivalent Tm(1), one Y(1), one Sn(1), and three equivalent Sn(2) atoms. The Pd(4)-Sn(1) bond length is 2.89 Å. All Pd(4)-Sn(2) bond lengths are 2.94 Å. In the seventh Pd site, Pd(2) is bonded in a body-centered cubic geometry to one Tm(1), three equivalent Tm(2), and four equivalent Sn(1) atoms. The Pd(2)-Tm(1) bond length is 2.92 Å. There is one shorter (2.91 Å) and three longer (2.94 Å) Pd(2)-Sn(1) bond lengths. In the eighth Pd site, Pd(3) is bonded in a body-centered cubic geometry to one Tm(1), three equivalent Y(1), and four equivalent Sn(2) atoms. There are three shorter (2.93 Å) and one longer (2.94 Å) Pd(3)-Sn(2) bond length. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a distorted body-centered cubic geometry to three equivalent Tm(1); three equivalent Tm(2); one Pd(4); three equivalent Pd(1); and four Pd(2,2) atoms. In the second Sn site, Sn(2) is bonded in a distorted body-centered cubic geometry to three equivalent Tm(1); three equivalent Y(1); one Pd(1); three equivalent Pd(4); and four Pd(3,3) atoms.