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CePt2Al3 crystallizes in the hexagonal P6/mmm space group. The structure is three-dimensional. Ce is bonded in a distorted hexagonal planar geometry to six equivalent Pt atoms. All Ce–Pt bond lengths are 3.16 Å. Pt is bonded in a 9-coordinate geometry to three equivalent Ce and six equivalent Al atoms. All Pt–Al bond lengths are 2.64 Å. Al is bonded in a 12-coordinate geometry to four equivalent Pt atoms.
Bi2O2CO3 crystallizes in the triclinic P1 space group. The structure is three-dimensional. C4+ is bonded in a trigonal planar geometry to three O2- atoms. All C–O bond lengths are 1.30 Å. There are two inequivalent Bi3+ sites. In the first Bi3+ site, Bi3+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Bi–O bond distances ranging from 2.33–2.65 Å. In the second Bi3+ site, Bi3+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Bi–O bond distances ranging from 2.32–3.07 Å. There are five inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to one C4+ and two Bi3+ atoms. In the second O2- site, O2- is bonded in a single-bond geometry to one C4+ and three equivalent Bi3+ atoms. In the third O2- site, O2- is bonded to four Bi3+ atoms to form a mixture of corner and edge-sharing OBi4 tetrahedra. In the fourth O2- site, O2- is bonded in a single-bond geometry to one C4+ and one Bi3+ atom. In the fifth O2- site, O2- is bonded to four Bi3+ atoms to form a mixture of corner and edge-sharing OBi4 tetrahedra.
Pb3OBO3F crystallizes in the orthorhombic Pbcm space group. The structure is three-dimensional. B3+ is bonded in a trigonal planar geometry to three O2- atoms. There is two shorter (1.39 Å) and one longer (1.40 Å) B–O bond length. There are two inequivalent Pb2+ sites. In the first Pb2+ site, Pb2+ is bonded in a 5-coordinate geometry to three O2- and two equivalent F1- atoms. There are a spread of Pb–O bond distances ranging from 2.20–2.47 Å. There are one shorter (2.61 Å) and one longer (3.02 Å) Pb–F bond lengths. In the second Pb2+ site, Pb2+ is bonded in a 7-coordinate geometry to six O2- and one F1- atom. There are a spread of Pb–O bond distances ranging from 2.43–3.04 Å. The Pb–F bond length is 3.02 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded to four Pb2+ atoms to form distorted corner-sharing OPb4 tetrahedra. In the second O2- site, O2- is bonded in a distorted single-bond geometry to one B3+ and three Pb2+ atoms. In the third O2- site, O2- is bonded in a distorted single-bond geometry to one B3+ and two equivalent Pb2+ atoms. F1- is bonded in a 5-coordinate geometry to five Pb2+ atoms.
Hg3Tl is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Hg is bonded in a square co-planar geometry to four equivalent Tl atoms. All Hg–Tl bond lengths are 3.45 Å. Tl is bonded to twelve equivalent Hg atoms to form a mixture of corner and face-sharing TlHg12 cuboctahedra.
PdO crystallizes in the tetragonal P4_2/mmc space group. The structure is three-dimensional. Pd2+ is bonded in a square co-planar geometry to four equivalent O2- atoms. All Pd–O bond lengths are 2.06 Å. O2- is bonded to four equivalent Pd2+ atoms to form a mixture of edge and corner-sharing OPd4 tetrahedra.
Cu3N is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Cu1+ is bonded in a square co-planar geometry to four equivalent N3- atoms. All Cu–N bond lengths are 2.47 Å. N3- is bonded to twelve equivalent Cu1+ atoms to form a mixture of face and corner-sharing NCu12 cuboctahedra.
PtS crystallizes in the tetragonal P4_2/mmc space group. The structure is three-dimensional. Pt2+ is bonded in a square co-planar geometry to four equivalent S2- atoms. All Pt–S bond lengths are 2.34 Å. S2- is bonded to four equivalent Pt2+ atoms to form a mixture of edge and corner-sharing SPt4 tetrahedra.
PtO crystallizes in the tetragonal P4_2/mmc space group. The structure is three-dimensional. Pt2+ is bonded in a square co-planar geometry to four equivalent O2- atoms. All Pt–O bond lengths are 2.07 Å. O2- is bonded to four equivalent Pt2+ atoms to form a mixture of edge and corner-sharing OPt4 tetrahedra.
Ni3Sb is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Ni1+ is bonded in a square co-planar geometry to four equivalent Sb3- atoms. All Ni–Sb bond lengths are 2.63 Å. Sb3- is bonded to twelve equivalent Ni1+ atoms to form a mixture of face and corner-sharing SbNi12 cuboctahedra.
In3Sb is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. In1+ is bonded in a square co-planar geometry to four equivalent Sb3- atoms. All In–Sb bond lengths are 3.42 Å. Sb3- is bonded to twelve equivalent In1+ atoms to form a mixture of face and corner-sharing SbIn12 cuboctahedra.
PdPb2F6 crystallizes in the orthorhombic Cmce space group. The structure is three-dimensional. Pd2+ is bonded in a square co-planar geometry to four equivalent F1- atoms. All Pd–F bond lengths are 2.01 Å. Pb2+ is bonded in a body-centered cubic geometry to eight F1- atoms. There are a spread of Pb–F bond distances ranging from 2.57–2.62 Å. There are two inequivalent F1- sites. In the first F1- site, F1- is bonded in a distorted trigonal planar geometry to one Pd2+ and two equivalent Pb2+ atoms. In the second F1- site, F1- is bonded to four equivalent Pb2+ atoms to form a mixture of edge and corner-sharing FPb4 tetrahedra.
Ga3Pb is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Ga is bonded in a square co-planar geometry to four equivalent Pb atoms. All Ga–Pb bond lengths are 3.20 Å. Pb is bonded to twelve equivalent Ga atoms to form a mixture of face and corner-sharing PbGa12 cuboctahedra.
Zr3N is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Zr is bonded in a square co-planar geometry to four equivalent N atoms. All Zr–N bond lengths are 2.92 Å. N is bonded to twelve equivalent Zr atoms to form a mixture of face and corner-sharing NZr12 cuboctahedra.
Cu3Sb is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Cu1+ is bonded in a square co-planar geometry to four equivalent Sb3- atoms. All Cu–Sb bond lengths are 2.76 Å. Sb3- is bonded to twelve equivalent Cu1+ atoms to form a mixture of face and corner-sharing SbCu12 cuboctahedra.
Y2BeO4 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Be2+ is bonded in a trigonal planar geometry to three O2- atoms. There are a spread of Be–O bond distances ranging from 1.54–1.57 Å. There are two inequivalent Y3+ sites. In the first Y3+ site, Y3+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of Y–O bond distances ranging from 2.26–2.73 Å. In the second Y3+ site, Y3+ is bonded to six O2- atoms to form edge-sharing YO6 octahedra. There are a spread of Y–O bond distances ranging from 2.23–2.35 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a 4-coordinate geometry to one Be2+ and three Y3+ atoms. In the second O2- site, O2- is bonded to one Be2+ and three Y3+ atoms to form distorted OY3Be tetrahedra that share corners with eight OY4 tetrahedra and edges with two equivalent OY3Be tetrahedra. In the third O2- site, O2- is bonded to one Be2+ and three Y3+ atoms to form a mixture of distorted edge and corner-sharing OY3Be tetrahedra. In the fourth O2- site, O2- is bonded to four Y3+ atoms to form OY4 tetrahedra that share corners with twelve OY3Be tetrahedra and edges with three OY4 tetrahedra.
KTaWO6 crystallizes in the orthorhombic Ima2 space group. The structure is three-dimensional. K1+ is bonded in a hexagonal planar geometry to six O2- atoms. There are a spread of K–O bond distances ranging from 2.70–2.80 Å. Ta5+ is bonded to six O2- atoms to form TaO6 octahedra that share corners with two equivalent TaO6 octahedra and corners with four equivalent WO6 octahedra. The corner-sharing octahedra tilt angles range from 37–39°. There is four shorter (1.99 Å) and two longer (2.00 Å) Ta–O bond length. W6+ is bonded to six O2- atoms to form WO6 octahedra that share corners with two equivalent WO6 octahedra and corners with four equivalent TaO6 octahedra. The corner-sharing octahedra tilt angles range from 36–38°. There are a spread of W–O bond distances ranging from 1.94–1.97 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a 4-coordinate geometry to two equivalent K1+ and two equivalent Ta5+ atoms. In the second O2- site, O2- is bonded in a bent 150 degrees geometry to two equivalent W6+ atoms. In the third O2- site, O2- is bonded in a 2-coordinate geometry to one K1+, one Ta5+, and one W6+ atom. In the fourth O2- site, O2- is bonded in a 3-coordinate geometry to one K1+, one Ta5+, and one W6+ atom.
KNbWO6 crystallizes in the orthorhombic Ima2 space group. The structure is three-dimensional. K1+ is bonded in a hexagonal planar geometry to six O2- atoms. There are a spread of K–O bond distances ranging from 2.70–2.82 Å. Nb5+ is bonded to six O2- atoms to form NbO6 octahedra that share corners with two equivalent NbO6 octahedra and corners with four equivalent WO6 octahedra. The corner-sharing octahedra tilt angles range from 37–40°. There are four shorter (2.00 Å) and two longer (2.02 Å) Nb–O bond lengths. W6+ is bonded to six O2- atoms to form WO6 octahedra that share corners with two equivalent WO6 octahedra and corners with four equivalent NbO6 octahedra. The corner-sharing octahedra tilt angles range from 35–38°. There are a spread of W–O bond distances ranging from 1.94–1.97 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a 4-coordinate geometry to two equivalent K1+ and two equivalent Nb5+ atoms. In the second O2- site, O2- is bonded in a bent 150 degrees geometry to two equivalent W6+ atoms. In the third O2- site, O2- is bonded in a 2-coordinate geometry to one K1+, one Nb5+, and one W6+ atom. In the fourth O2- site, O2- is bonded in a 3-coordinate geometry to one K1+, one Nb5+, and one W6+ atom.
Two-dimensional (2D) DNA origami is widely used for applications ranging from excitonics to single-molecule biophysics. Conventional, single-layer 2D DNA origami exhibits flexibility and curvature in solution; however, that may limit its suitability as a 2D structural template. In contrast, 2D wireframe DNA origami rendered with six-helix bundle edges offers local control over duplex orientations with enhanced in-plane rigidity. Here, we investigate the 3D structure of these assemblies using cryo–electron microscopy (cryo-EM). 3D reconstructions reveal a high degree of planarity and homogeneity in solution for polygonal objects with and without internal mesh, enabling 10-Å resolution for a triangle. Coarse-grained simulations were in agreement with cryo-EM data, offering molecular structural insight into this class of 2D DNA origami. Our results suggest that these assemblies may be valuable for 2D material applications and geometries that require high structural fidelity together with local control over duplex orientations, rather than parallel duplex assembly.