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VWTc2 crystallizes in the orthorhombic Immm space group. The structure is one-dimensional and consists of two VWTc2 ribbons oriented in the (1, 0, 0) direction. V4+ is bonded in a linear geometry to two equivalent Tc3- atoms. Both V–Tc bond lengths are 2.34 Å. W2+ is bonded in a linear geometry to two equivalent Tc3- atoms. Both W–Tc bond lengths are 2.32 Å. Tc3- is bonded in a linear geometry to one V4+ and one W2+ atom.
(NaTc2N2OF12)2(N2)3 crystallizes in the orthorhombic Pbam space group. The structure is two-dimensional and consists of six ammonia molecules and two NaTc2N2OF12 sheets oriented in the (0, 0, 1) direction. In each NaTc2N2OF12 sheet, Na1+ is bonded to six F1- atoms to form NaF6 octahedra that share corners with four equivalent TcOF5 octahedra. The corner-sharing octahedral tilt angles are 9°. There are four shorter (2.39 Å) and two longer (2.69 Å) Na–F bond lengths. Tc6+ is bonded to one O2- and five F1- atoms to form TcOF5 octahedra that share a cornercorner with one TcOF5 octahedra and corners with two equivalent NaF6 octahedra. The corner-sharing octahedra tilt angles range from 0–9°. The Tc–O bond length is 1.86 Å. There are a spread of Tc–F bond distances ranging from 1.87–1.93 Å. N+0.20+ is bonded in a single-bond geometry to one F1- atom. The N–F bond length is 1.35 Å. O2- is bonded in a linear geometry to two equivalent Tc6+ atoms. There are four inequivalent F1- sites. In the first F1- site, F1- is bonded in a distorted water-like geometry to one Na1+ and one N+0.20+ atom. In the second F1- site, F1- is bonded in a single-bond geometry to one Tc6+ atom. In the third F1- site, F1- is bonded in a single-bond geometry to one Tc6+ atom. In the fourth F1- site, F1- is bonded in a linear geometry to one Na1+ and one Tc6+ atom.
CrTc2Ga crystallizes in the orthorhombic Immm space group. The structure is one-dimensional and consists of two CrTc2Ga ribbons oriented in the (1, 0, 0) direction. Cr3+ is bonded in a linear geometry to two equivalent Tc3- atoms. Both Cr–Tc bond lengths are 2.14 Å. Tc3- is bonded in a linear geometry to one Cr3+ and one Ga3+ atom. The Tc–Ga bond length is 2.48 Å. Ga3+ is bonded in a linear geometry to two equivalent Tc3- atoms.
TiTc2Sn crystallizes in the orthorhombic Immm space group. The structure is one-dimensional and consists of two TiTc2Sn ribbons oriented in the (1, 0, 0) direction. Ti4+ is bonded in a linear geometry to two equivalent Tc3- atoms. Both Ti–Tc bond lengths are 2.15 Å. Tc3- is bonded in a linear geometry to one Ti4+ and one Sn2+ atom. The Tc–Sn bond length is 2.61 Å. Sn2+ is bonded in a linear geometry to two equivalent Tc3- atoms.
ZrVTc2 crystallizes in the orthorhombic Immm space group. The structure is one-dimensional and consists of two ZrVTc2 ribbons oriented in the (1, 0, 0) direction. Zr4+ is bonded in a linear geometry to two equivalent Tc3- atoms. Both Zr–Tc bond lengths are 2.34 Å. V2+ is bonded in a linear geometry to two equivalent Tc3- atoms. Both V–Tc bond lengths are 2.17 Å. Tc3- is bonded in a linear geometry to one Zr4+ and one V2+ atom.
TiTc2Ga crystallizes in the orthorhombic Immm space group. The structure is one-dimensional and consists of two TiTc2Ga ribbons oriented in the (1, 0, 0) direction. Ti3+ is bonded in a linear geometry to two equivalent Tc3- atoms. Both Ti–Tc bond lengths are 2.17 Å. Tc3- is bonded in a linear geometry to one Ti3+ and one Ga3+ atom. The Tc–Ga bond length is 2.51 Å. Ga3+ is bonded in a linear geometry to two equivalent Tc3- atoms.
ZrTc2Al crystallizes in the orthorhombic Immm space group. The structure is one-dimensional and consists of two ZrTc2Al ribbons oriented in the (1, 0, 0) direction. Zr3+ is bonded in a linear geometry to two equivalent Tc3- atoms. Both Zr–Tc bond lengths are 2.33 Å. Tc3- is bonded in a linear geometry to one Zr3+ and one Al3+ atom. The Tc–Al bond length is 2.51 Å. Al3+ is bonded in a linear geometry to two equivalent Tc3- atoms.
Tc2GaGe crystallizes in the orthorhombic Immm space group. The structure is one-dimensional and consists of two Tc2GaGe ribbons oriented in the (1, 0, 0) direction. Tc3- is bonded in a linear geometry to one Ga2+ and one Ge4+ atom. The Tc–Ga bond length is 2.51 Å. The Tc–Ge bond length is 2.38 Å. Ga2+ is bonded in a linear geometry to two equivalent Tc3- atoms. Ge4+ is bonded in a linear geometry to two equivalent Tc3- atoms.
Tc3B crystallizes in the orthorhombic Cmcm space group. The structure is two-dimensional and consists of two Tc3B sheets oriented in the (0, 1, 0) direction. there are two inequivalent Tc1- sites. In the first Tc1- site, Tc1- is bonded in a 2-coordinate geometry to three equivalent B3+ atoms. There are two shorter (2.24 Å) and one longer (2.53 Å) Tc–B bond lengths. In the second Tc1- site, Tc1- is bonded in a distorted L-shaped geometry to two equivalent B3+ atoms. Both Tc–B bond lengths are 2.22 Å. B3+ is bonded in a 6-coordinate geometry to eight Tc1- atoms.
TiTc2Sn is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Ti4+ is bonded in a body-centered cubic geometry to eight equivalent Tc3- atoms. All Ti–Tc bond lengths are 2.76 Å. Tc3- is bonded in a body-centered cubic geometry to four equivalent Ti4+ and four equivalent Sn2+ atoms. All Tc–Sn bond lengths are 2.76 Å. Sn2+ is bonded in a body-centered cubic geometry to eight equivalent Tc3- atoms.
Tc2FeAl crystallizes in the orthorhombic Immm space group. The structure is one-dimensional and consists of two Tc2FeAl ribbons oriented in the (1, 0, 0) direction. Tc3- is bonded in a linear geometry to one Fe3+ and one Al3+ atom. The Tc–Fe bond length is 2.30 Å. The Tc–Al bond length is 2.41 Å. Fe3+ is bonded in a linear geometry to two equivalent Tc3- atoms. Al3+ is bonded in a linear geometry to two equivalent Tc3- atoms.
Tc2AlSb crystallizes in the orthorhombic Immm space group. The structure is one-dimensional and consists of two Tc2AlSb ribbons oriented in the (1, 0, 0) direction. Tc3- is bonded in a linear geometry to one Al3+ and one Sb3+ atom. The Tc–Al bond length is 2.49 Å. The Tc–Sb bond length is 2.53 Å. Al3+ is bonded in a linear geometry to two equivalent Tc3- atoms. Sb3+ is bonded in a linear geometry to two equivalent Tc3- atoms.
TaTc2Al crystallizes in the orthorhombic Immm space group. The structure is one-dimensional and consists of two TaTc2Al ribbons oriented in the (1, 0, 0) direction. Ta3+ is bonded in a linear geometry to two equivalent Tc3- atoms. Both Ta–Tc bond lengths are 2.24 Å. Tc3- is bonded in a linear geometry to one Ta3+ and one Al3+ atom. The Tc–Al bond length is 2.51 Å. Al3+ is bonded in a linear geometry to two equivalent Tc3- atoms.
WTc2Al crystallizes in the orthorhombic Immm space group. The structure is one-dimensional and consists of two WTc2Al ribbons oriented in the (1, 0, 0) direction. W3+ is bonded in a linear geometry to two equivalent Tc3- atoms. Both W–Tc bond lengths are 2.21 Å. Tc3- is bonded in a linear geometry to one W3+ and one Al3+ atom. The Tc–Al bond length is 2.51 Å. Al3+ is bonded in a linear geometry to two equivalent Tc3- atoms.
TcI4 crystallizes in the monoclinic P2_1/c space group. The structure is one-dimensional and consists of four TcI4 ribbons oriented in the (0, 1, 0) direction. there are two inequivalent Tc4+ sites. In the first Tc4+ site, Tc4+ is bonded to six I1- atoms to form edge-sharing TcI6 octahedra. There are a spread of Tc–I bond distances ranging from 2.63–2.85 Å. In the second Tc4+ site, Tc4+ is bonded to six I1- atoms to form edge-sharing TcI6 octahedra. There are a spread of Tc–I bond distances ranging from 2.64–2.86 Å. There are eight inequivalent I1- sites. In the first I1- site, I1- is bonded in a single-bond geometry to one Tc4+ atom. In the second I1- site, I1- is bonded in a single-bond geometry to one Tc4+ atom. In the third I1- site, I1- is bonded in a water-like geometry to two Tc4+ atoms. In the fourth I1- site, I1- is bonded in a water-like geometry to two Tc4+ atoms. In the fifth I1- site, I1- is bonded in a single-bond geometry to one Tc4+ atom. In the sixth I1- site, I1- is bonded in a single-bond geometry to one Tc4+ atom. In the seventh I1- site, I1- is bonded in a water-like geometry to two Tc4+ atoms. In the eighth I1- site, I1- is bonded in a water-like geometry to two Tc4+ atoms.
ReTc2Ga crystallizes in the orthorhombic Immm space group. The structure is one-dimensional and consists of two ReTc2Ga ribbons oriented in the (1, 0, 0) direction. Re3+ is bonded in a linear geometry to two equivalent Tc3- atoms. Both Re–Tc bond lengths are 2.19 Å. Tc3- is bonded in a linear geometry to one Re3+ and one Ga3+ atom. The Tc–Ga bond length is 2.50 Å. Ga3+ is bonded in a linear geometry to two equivalent Tc3- atoms.
NbTc2Sn is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Nb2+ is bonded in a body-centered cubic geometry to eight equivalent Tc3- atoms. All Nb–Tc bond lengths are 2.79 Å. Tc3- is bonded in a body-centered cubic geometry to four equivalent Nb2+ and four equivalent Sn4+ atoms. All Tc–Sn bond lengths are 2.79 Å. Sn4+ is bonded in a body-centered cubic geometry to eight equivalent Tc3- atoms.
NbTc2Ga is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Nb3+ is bonded in a body-centered cubic geometry to eight equivalent Tc3- atoms. All Nb–Tc bond lengths are 2.72 Å. Tc3- is bonded in a body-centered cubic geometry to four equivalent Nb3+ and four equivalent Ga3+ atoms. All Tc–Ga bond lengths are 2.72 Å. Ga3+ is bonded in a body-centered cubic geometry to eight equivalent Tc3- atoms.