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MoTa crystallizes in the orthorhombic Cmmm space group. The structure is two-dimensional and consists of two MoTa sheets oriented in the (0, 1, 0) direction. Ta is bonded in a 4-coordinate geometry to four equivalent Mo atoms. All Ta–Mo bond lengths are 2.77 Å. Mo is bonded in a 4-coordinate geometry to four equivalent Ta atoms.
TaNbRu2 crystallizes in the orthorhombic Immm space group. The structure is one-dimensional and consists of two TaNbRu2 ribbons oriented in the (1, 0, 0) direction. Ta is bonded in a linear geometry to two equivalent Ru atoms. Both Ta–Ru bond lengths are 2.22 Å. Nb is bonded in a linear geometry to two equivalent Ru atoms. Both Nb–Ru bond lengths are 2.24 Å. Ru is bonded in a linear geometry to one Ta and one Nb atom.
Sm2Ta3(SO4)2 crystallizes in the orthorhombic P2_12_12 space group. The structure is three-dimensional. Sm+2.50+ is bonded in a 9-coordinate geometry to two equivalent S2- and seven O2- atoms. There are one shorter (2.97 Å) and one longer (3.04 Å) Sm–S bond lengths. There are a spread of Sm–O bond distances ranging from 2.42–2.58 Å. There are two inequivalent Ta5+ sites. In the first Ta5+ site, Ta5+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Ta–O bond distances ranging from 1.86–2.36 Å. In the second Ta5+ site, Ta5+ is bonded to four equivalent S2- and two equivalent O2- atoms to form distorted edge-sharing TaS4O2 octahedra. There are two shorter (2.56 Å) and two longer (2.58 Å) Ta–S bond lengths. Both Ta–O bond lengths are 1.98 Å. S2- is bonded in a 4-coordinate geometry to two equivalent Sm+2.50+ and two equivalent Ta5+ atoms. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a 4-coordinate geometry to two equivalent Sm+2.50+ and two Ta5+ atoms. In the second O2- site, O2- is bonded in a 4-coordinate geometry to two equivalent Sm+2.50+ and two equivalent Ta5+ atoms. In the third O2- site, O2- is bonded in a 3-coordinate geometry to two equivalent Sm+2.50+ and one Ta5+ atom. In the fourth O2- site, O2- is bonded in a 2-coordinate geometry to one Sm+2.50+ and two equivalent Ta5+ atoms.
HfTaN2 is Caswellsilverite structured and crystallizes in the trigonal R-3m space group. The structure is three-dimensional. Hf is bonded to six equivalent N atoms to form HfN6 octahedra that share corners with six equivalent TaN6 octahedra, edges with six equivalent HfN6 octahedra, and edges with six equivalent TaN6 octahedra. The corner-sharing octahedral tilt angles are 0°. All Hf–N bond lengths are 2.23 Å. Ta is bonded to six equivalent N atoms to form TaN6 octahedra that share corners with six equivalent HfN6 octahedra, edges with six equivalent HfN6 octahedra, and edges with six equivalent TaN6 octahedra. The corner-sharing octahedral tilt angles are 0°. All Ta–N bond lengths are 2.24 Å. N is bonded to three equivalent Hf and three equivalent Ta atoms to form a mixture of corner and edge-sharing NHf3Ta3 octahedra. The corner-sharing octahedral tilt angles are 0°.
ReTa crystallizes in the orthorhombic Cmmm space group. The structure is two-dimensional and consists of two ReTa sheets oriented in the (0, 1, 0) direction. Ta is bonded in a 4-coordinate geometry to four equivalent Re atoms. All Ta–Re bond lengths are 2.75 Å. Re is bonded in a 4-coordinate geometry to four equivalent Ta atoms.
TiTa3B4 crystallizes in the orthorhombic Pmm2 space group. The structure is three-dimensional. Ti3+ is bonded in a 7-coordinate geometry to seven B3- atoms. There are six shorter (2.39 Å) and one longer (2.55 Å) Ti–B bond lengths. There are three inequivalent Ta3+ sites. In the first Ta3+ site, Ta3+ is bonded in a 7-coordinate geometry to seven B3- atoms. There are a spread of Ta–B bond distances ranging from 2.39–2.59 Å. In the second Ta3+ site, Ta3+ is bonded in a 7-coordinate geometry to seven B3- atoms. There are a spread of Ta–B bond distances ranging from 2.40–2.52 Å. In the third Ta3+ site, Ta3+ is bonded in a 7-coordinate geometry to seven B3- atoms. There are a spread of Ta–B bond distances ranging from 2.40–2.59 Å. There are four inequivalent B3- sites. In the first B3- site, B3- is bonded in a 9-coordinate geometry to one Ti3+, six Ta3+, and two equivalent B3- atoms. Both B–B bond lengths are 1.89 Å. In the second B3- site, B3- is bonded in a 9-coordinate geometry to two equivalent Ti3+, five Ta3+, and two equivalent B3- atoms. Both B–B bond lengths are 1.87 Å. In the third B3- site, B3- is bonded in a 9-coordinate geometry to four equivalent Ti3+, three Ta3+, and two equivalent B3- atoms. In the fourth B3- site, B3- is bonded in a 9-coordinate geometry to seven Ta3+ and two equivalent B3- atoms.
TaWMo2 crystallizes in the orthorhombic Immm space group. The structure is one-dimensional and consists of two TaWMo2 ribbons oriented in the (1, 0, 0) direction. Ta is bonded in a linear geometry to two equivalent Mo atoms. Both Ta–Mo bond lengths are 2.33 Å. W is bonded in a linear geometry to two equivalent Mo atoms. Both W–Mo bond lengths are 2.31 Å. Mo is bonded in a linear geometry to one Ta and one W atom.
Rb3Ta is alpha bismuth trifluoride structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. there are two inequivalent Rb sites. In the first Rb site, Rb is bonded to four equivalent Rb and four equivalent Ta atoms to form a mixture of distorted corner, edge, and face-sharing RbRb4Ta4 tetrahedra. All Rb–Rb bond lengths are 4.08 Å. All Rb–Ta bond lengths are 4.08 Å. In the second Rb site, Rb is bonded in a body-centered cubic geometry to eight equivalent Rb atoms. Ta is bonded in a body-centered cubic geometry to eight equivalent Rb atoms.
BeTaCo2 crystallizes in the orthorhombic Immm space group. The structure is one-dimensional and consists of two BeTaCo2 ribbons oriented in the (1, 0, 0) direction. Be is bonded in a linear geometry to two equivalent Co atoms. Both Be–Co bond lengths are 2.24 Å. Ta is bonded in a linear geometry to two equivalent Co atoms. Both Ta–Co bond lengths are 2.04 Å. Co is bonded in a linear geometry to one Be and one Ta atom.
TaNbMn2 crystallizes in the orthorhombic Immm space group. The structure is one-dimensional and consists of two TaNbMn2 ribbons oriented in the (1, 0, 0) direction. Ta is bonded in a linear geometry to two equivalent Mn atoms. Both Ta–Mn bond lengths are 2.42 Å. Nb is bonded in a linear geometry to two equivalent Mn atoms. Both Nb–Mn bond lengths are 2.45 Å. Mn is bonded in a linear geometry to one Ta and one Nb atom.
TaVSi4 is Titanium Disilicide-derived structured and crystallizes in the monoclinic P2 space group. The structure is three-dimensional. there are three inequivalent Ta5+ sites. In the first Ta5+ site, Ta5+ is bonded in a distorted q6 geometry to ten Si2- atoms. There are a spread of Ta–Si bond distances ranging from 2.62–2.76 Å. In the second Ta5+ site, Ta5+ is bonded in a distorted q6 geometry to ten Si2- atoms. There are a spread of Ta–Si bond distances ranging from 2.59–2.73 Å. In the third Ta5+ site, Ta5+ is bonded in a distorted q6 geometry to ten Si2- atoms. There are a spread of Ta–Si bond distances ranging from 2.60–2.76 Å. There are three inequivalent V3+ sites. In the first V3+ site, V3+ is bonded in a distorted q6 geometry to ten Si2- atoms. There are a spread of V–Si bond distances ranging from 2.51–2.76 Å. In the second V3+ site, V3+ is bonded in a distorted q6 geometry to ten Si2- atoms. There are a spread of V–Si bond distances ranging from 2.54–2.80 Å. In the third V3+ site, V3+ is bonded in a distorted q6 geometry to ten Si2- atoms. There are a spread of V–Si bond distances ranging from 2.51–2.77 Å. There are six inequivalent Si2- sites. In the first Si2- site, Si2- is bonded in a 10-coordinate geometry to four Ta5+, one V3+, and five Si2- atoms. There are a spread of Si–Si bond distances ranging from 2.53–2.82 Å. In the second Si2- site, Si2- is bonded in a 10-coordinate geometry to three equivalent Ta5+, two V3+, and five Si2- atoms. There are a spread of Si–Si bond distances ranging from 2.53–2.76 Å. In the third Si2- site, Si2- is bonded in a 10-coordinate geometry to four Ta5+, one V3+, and five Si2- atoms. There are a spread of Si–Si bond distances ranging from 2.51–2.81 Å. In the fourth Si2- site, Si2- is bonded in a 10-coordinate geometry to one Ta5+, four V3+, and five Si2- atoms. There are a spread of Si–Si bond distances ranging from 2.48–2.84 Å. In the fifth Si2- site, Si2- is bonded in a 10-coordinate geometry to two Ta5+, three equivalent V3+, and five Si2- atoms. There are a spread of Si–Si bond distances ranging from 2.59–2.79 Å. In the sixth Si2- site, Si2- is bonded in a 10-coordinate geometry to one Ta5+, four V3+, and five Si2- atoms. There are a spread of Si–Si bond distances ranging from 2.65–2.81 Å.
V(Ta)N(C) is alpha Po-derived structured and crystallizes in the trigonal R3m space group. The structure is three-dimensional. Ta5+ is bonded to three equivalent C4- and three equivalent N3- atoms to form TaC3N3 octahedra that share corners with six equivalent VC3N3 octahedra, edges with six equivalent TaC3N3 octahedra, and edges with six equivalent VC3N3 octahedra. The corner-sharing octahedra tilt angles range from 1–5°. All Ta–C bond lengths are 2.18 Å. All Ta–N bond lengths are 2.21 Å. V2+ is bonded to three equivalent C4- and three equivalent N3- atoms to form VC3N3 octahedra that share corners with six equivalent TaC3N3 octahedra, edges with six equivalent TaC3N3 octahedra, and edges with six equivalent VC3N3 octahedra. The corner-sharing octahedra tilt angles range from 1–5°. All V–C bond lengths are 2.05 Å. All V–N bond lengths are 2.24 Å. C4- is bonded to three equivalent Ta5+ and three equivalent V2+ atoms to form CTa3V3 octahedra that share corners with six equivalent NTa3V3 octahedra, edges with six equivalent CTa3V3 octahedra, and edges with six equivalent NTa3V3 octahedra. The corner-sharing octahedra tilt angles range from 1–8°. N3- is bonded to three equivalent Ta5+ and three equivalent V2+ atoms to form NTa3V3 octahedra that share corners with six equivalent CTa3V3 octahedra, edges with six equivalent CTa3V3 octahedra, and edges with six equivalent NTa3V3 octahedra. The corner-sharing octahedra tilt angles range from 1–8°.
BeTaRh2 crystallizes in the orthorhombic Immm space group. The structure is one-dimensional and consists of two BeTaRh2 ribbons oriented in the (1, 0, 0) direction. Be is bonded in a linear geometry to two equivalent Rh atoms. Both Be–Rh bond lengths are 2.34 Å. Ta is bonded in a linear geometry to two equivalent Rh atoms. Both Ta–Rh bond lengths are 2.17 Å. Rh is bonded in a linear geometry to one Be and one Ta atom.
HfTa crystallizes in the orthorhombic Cmmm space group. The structure is two-dimensional and consists of two HfTa sheets oriented in the (0, 1, 0) direction. Hf is bonded in a 8-coordinate geometry to four equivalent Ta atoms. All Hf–Ta bond lengths are 2.97 Å. Ta is bonded in a 8-coordinate geometry to four equivalent Hf atoms.
Ta2(Ni7B2)3 crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Ta is bonded in a distorted tetrahedral geometry to four equivalent Ni atoms. All Ta–Ni bond lengths are 2.44 Å. There are three inequivalent Ni sites. In the first Ni site, Ni is bonded in a cuboctahedral geometry to twelve equivalent Ni atoms. All Ni–Ni bond lengths are 2.53 Å. In the second Ni site, Ni is bonded to one Ta and three equivalent B atoms to form a mixture of edge and corner-sharing NiTaB3 tetrahedra. All Ni–B bond lengths are 2.10 Å. In the third Ni site, Ni is bonded in a distorted bent 150 degrees geometry to one Ni and two equivalent B atoms. Both Ni–B bond lengths are 2.06 Å. B is bonded in a 8-coordinate geometry to eight Ni atoms.
ZrTa2N3 crystallizes in the hexagonal P6/mmm space group. The structure is three-dimensional. Zr2+ is bonded in a hexagonal planar geometry to six equivalent N3- atoms. All Zr–N bond lengths are 2.64 Å. Ta+3.50+ is bonded to six equivalent N3- atoms to form a mixture of distorted edge, face, and corner-sharing TaN6 pentagonal pyramids. All Ta–N bond lengths are 2.13 Å. N3- is bonded to two equivalent Zr2+ and four equivalent Ta+3.50+ atoms to form a mixture of distorted edge, face, and corner-sharing NZr2Ta4 octahedra. The corner-sharing octahedra tilt angles range from 0–60°.
TaCrP crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Ta is bonded in a 5-coordinate geometry to five equivalent P atoms. There are a spread of Ta–P bond distances ranging from 2.59–2.69 Å. Cr is bonded in a 4-coordinate geometry to four equivalent P atoms. There are two shorter (2.33 Å) and two longer (2.40 Å) Cr–P bond lengths. P is bonded in a 9-coordinate geometry to five equivalent Ta and four equivalent Cr atoms.
HfTaMn2 crystallizes in the orthorhombic Immm space group. The structure is one-dimensional and consists of two HfTaMn2 ribbons oriented in the (1, 0, 0) direction. Hf is bonded in a linear geometry to two equivalent Mn atoms. Both Hf–Mn bond lengths are 2.44 Å. Ta is bonded in a linear geometry to two equivalent Mn atoms. Both Ta–Mn bond lengths are 2.33 Å. Mn is bonded in a linear geometry to one Hf and one Ta atom.