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PaO2 is Hydrophilite structured and crystallizes in the tetragonal P4_2/mnm space group. The structure is three-dimensional. Pa4+ is bonded to six equivalent O2- atoms to form a mixture of edge and corner-sharing PaO6 octahedra. The corner-sharing octahedral tilt angles are 52°. There are two shorter (2.27 Å) and four longer (2.30 Å) Pa–O bond lengths. O2- is bonded in a trigonal planar geometry to three equivalent Pa4+ atoms.
PaS3 is beta Cu3Ti-like structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Pa5+ is bonded to twelve equivalent S+1.67- atoms to form a mixture of face and corner-sharing PaS12 cuboctahedra. There are six shorter (2.88 Å) and six longer (2.95 Å) Pa–S bond lengths. S+1.67- is bonded in a 4-coordinate geometry to four equivalent Pa5+ atoms.
PaTe3 is beta Cu3Ti-like structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Pa5+ is bonded to twelve equivalent Te+1.67- atoms to form PaTe12 cuboctahedra that share corners with six equivalent PaTe12 cuboctahedra, corners with twelve equivalent TePa4Te8 cuboctahedra, edges with eighteen equivalent TePa4Te8 cuboctahedra, faces with eight equivalent PaTe12 cuboctahedra, and faces with twelve equivalent TePa4Te8 cuboctahedra. There are six shorter (3.35 Å) and six longer (3.37 Å) Pa–Te bond lengths. Te+1.67- is bonded to four equivalent Pa5+ and eight equivalent Te+1.67- atoms to form distorted TePa4Te8 cuboctahedra that share corners with four equivalent PaTe12 cuboctahedra, corners with fourteen equivalent TePa4Te8 cuboctahedra, edges with six equivalent PaTe12 cuboctahedra, edges with twelve equivalent TePa4Te8 cuboctahedra, faces with four equivalent PaTe12 cuboctahedra, and faces with sixteen equivalent TePa4Te8 cuboctahedra. There are a spread of Te–Te bond distances ranging from 3.17–3.53 Å.
Pa2S3 is Corundum structured and crystallizes in the trigonal R-3c space group. The structure is three-dimensional. Pa3+ is bonded to six equivalent S2- atoms to form a mixture of face, edge, and corner-sharing PaS6 octahedra. The corner-sharing octahedra tilt angles range from 47–57°. There are three shorter (2.73 Å) and three longer (2.75 Å) Pa–S bond lengths. S2- is bonded to four equivalent Pa3+ atoms to form a mixture of distorted edge and corner-sharing SPa4 trigonal pyramids.
PaErTc2 is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Pa3+ is bonded in a body-centered cubic geometry to eight equivalent Tc3- atoms. All Pa–Tc bond lengths are 2.96 Å. Er3+ is bonded in a body-centered cubic geometry to eight equivalent Tc3- atoms. All Er–Tc bond lengths are 2.96 Å. Tc3- is bonded in a body-centered cubic geometry to four equivalent Pa3+ and four equivalent Er3+ atoms.
PaAgTe2 is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Pa3+ is bonded in a body-centered cubic geometry to eight equivalent Te2- atoms. All Pa–Te bond lengths are 3.22 Å. Ag1+ is bonded in a body-centered cubic geometry to eight equivalent Te2- atoms. All Ag–Te bond lengths are 3.22 Å. Te2- is bonded in a body-centered cubic geometry to four equivalent Pa3+ and four equivalent Ag1+ atoms.
LiPaPt2 is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Li1+ is bonded in a body-centered cubic geometry to eight equivalent Pt2- atoms. All Li–Pt bond lengths are 2.90 Å. Pa3+ is bonded in a body-centered cubic geometry to eight equivalent Pt2- atoms. All Pa–Pt bond lengths are 2.90 Å. Pt2- is bonded in a body-centered cubic geometry to four equivalent Li1+ and four equivalent Pa3+ atoms.
NaPaO3 is (Cubic) Perovskite structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Na1+ is bonded to twelve equivalent O2- atoms to form NaO12 cuboctahedra that share corners with twelve equivalent NaO12 cuboctahedra, faces with six equivalent NaO12 cuboctahedra, and faces with eight equivalent PaO6 octahedra. All Na–O bond lengths are 3.08 Å. Pa5+ is bonded to six equivalent O2- atoms to form PaO6 octahedra that share corners with six equivalent PaO6 octahedra and faces with eight equivalent NaO12 cuboctahedra. The corner-sharing octahedral tilt angles are 0°. All Pa–O bond lengths are 2.18 Å. O2- is bonded in a linear geometry to four equivalent Na1+ and two equivalent Pa5+ atoms.
PaTc2Al is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Pa3+ is bonded in a body-centered cubic geometry to eight equivalent Tc3- atoms. All Pa–Tc bond lengths are 2.82 Å. Tc3- is bonded in a body-centered cubic geometry to four equivalent Pa3+ and four equivalent Al3+ atoms. All Tc–Al bond lengths are 2.82 Å. Al3+ is bonded in a body-centered cubic geometry to eight equivalent Tc3- atoms.
PaTmTc2 is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Pa3+ is bonded in a body-centered cubic geometry to eight equivalent Tc3- atoms. All Pa–Tc bond lengths are 2.95 Å. Tm3+ is bonded in a body-centered cubic geometry to eight equivalent Tc3- atoms. All Tm–Tc bond lengths are 2.95 Å. Tc3- is bonded in a body-centered cubic geometry to four equivalent Pa3+ and four equivalent Tm3+ atoms.
PaLuTc2 is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Pa3+ is bonded in a body-centered cubic geometry to eight equivalent Tc3- atoms. All Pa–Tc bond lengths are 2.94 Å. Lu3+ is bonded in a body-centered cubic geometry to eight equivalent Tc3- atoms. All Lu–Tc bond lengths are 2.94 Å. Tc3- is bonded in a body-centered cubic geometry to four equivalent Pa3+ and four equivalent Lu3+ atoms.
PaAu3 is alpha bismuth trifluoride structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Pa3+ is bonded in a distorted body-centered cubic geometry to fourteen Au1- atoms. There are eight shorter (3.01 Å) and six longer (3.47 Å) Pa–Au bond lengths. There are two inequivalent Au1- sites. In the first Au1- site, Au1- is bonded to four equivalent Pa3+ and four equivalent Au1- atoms to form a mixture of distorted corner, edge, and face-sharing AuPa4Au4 tetrahedra. All Au–Au bond lengths are 3.01 Å. In the second Au1- site, Au1- is bonded in a 8-coordinate geometry to six equivalent Pa3+ and eight equivalent Au1- atoms.
PaDyTc2 is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Pa3+ is bonded in a body-centered cubic geometry to eight equivalent Tc3- atoms. All Pa–Tc bond lengths are 2.96 Å. Dy3+ is bonded in a body-centered cubic geometry to eight equivalent Tc3- atoms. All Dy–Tc bond lengths are 2.96 Å. Tc3- is bonded in a body-centered cubic geometry to four equivalent Pa3+ and four equivalent Dy3+ atoms.
PaBO3 is (Cubic) Perovskite structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Pa3+ is bonded to twelve equivalent O2- atoms to form PaO12 cuboctahedra that share corners with twelve equivalent PaO12 cuboctahedra, faces with six equivalent PaO12 cuboctahedra, and faces with eight equivalent BO6 octahedra. All Pa–O bond lengths are 2.56 Å. B3+ is bonded to six equivalent O2- atoms to form BO6 octahedra that share corners with six equivalent BO6 octahedra and faces with eight equivalent PaO12 cuboctahedra. The corner-sharing octahedral tilt angles are 0°. All B–O bond lengths are 1.81 Å. O2- is bonded in a distorted linear geometry to four equivalent Pa3+ and two equivalent B3+ atoms.
PaAgO3 is (Cubic) Perovskite structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Pa5+ is bonded to six equivalent O2- atoms to form PaO6 octahedra that share corners with six equivalent PaO6 octahedra and faces with eight equivalent AgO12 cuboctahedra. The corner-sharing octahedral tilt angles are 0°. All Pa–O bond lengths are 2.17 Å. Ag1+ is bonded to twelve equivalent O2- atoms to form AgO12 cuboctahedra that share corners with twelve equivalent AgO12 cuboctahedra, faces with six equivalent AgO12 cuboctahedra, and faces with eight equivalent PaO6 octahedra. All Ag–O bond lengths are 3.07 Å. O2- is bonded in a distorted linear geometry to two equivalent Pa5+ and four equivalent Ag1+ atoms.
PaN is Halite, Rock Salt structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Pa3+ is bonded to six equivalent N3- atoms to form a mixture of edge and corner-sharing PaN6 octahedra. The corner-sharing octahedral tilt angles are 0°. All Pa–N bond lengths are 2.48 Å. N3- is bonded to six equivalent Pa3+ atoms to form a mixture of edge and corner-sharing NPa6 octahedra. The corner-sharing octahedral tilt angles are 0°.
PaC2 crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Pa4+ is bonded in a distorted q4 geometry to ten equivalent C2- atoms. There are two shorter (2.37 Å) and eight longer (2.65 Å) Pa–C bond lengths. C2- is bonded in a 2-coordinate geometry to five equivalent Pa4+ and one C2- atom. The C–C bond length is 1.37 Å.
PaP2 crystallizes in the tetragonal P4/nmm space group. The structure is three-dimensional. Pa4+ is bonded in a 9-coordinate geometry to nine P2- atoms. There are a spread of Pa–P bond distances ranging from 2.80–2.92 Å. There are two inequivalent P2- sites. In the first P2- site, P2- is bonded to five equivalent Pa4+ atoms to form a mixture of distorted edge and corner-sharing PPa5 trigonal bipyramids. In the second P2- site, P2- is bonded in a 8-coordinate geometry to four equivalent Pa4+ and four equivalent P2- atoms. All P–P bond lengths are 2.73 Å.