ReP4 is Hausmannite-like structured and crystallizes in the orthorhombic Pbca space group. Re(1) is bonded to one P(2), one P(3), two equivalent P(1), and two equivalent P(4) atoms to form ReP6 octahedra that share corners with two equivalent Re(1)P6 octahedra, corners with three equivalent P(1)Re2P2 tetrahedra, corners with three equivalent P(4)Re2P2 tetrahedra, corners with four equivalent P(2)ReP3 tetrahedra, corners with four equivalent P(3)ReP3 tetrahedra, and  an edgeedge with one Re(1)P6 octahedra. The corner-sharing octahedral tilt angles are 56°. There are four inequivalent P sites. In the first P site, P(4) is bonded to two equivalent Re(1), one P(1), and one P(3) atom to form distorted PRe2P2 tetrahedra that share corners with three equivalent Re(1)P6 octahedra, corners with two equivalent P(3)ReP3 tetrahedra, corners with four equivalent P(1)Re2P2 tetrahedra, corners with five equivalent P(2)ReP3 tetrahedra, and  an edgeedge with one P(4)Re2P2 tetrahedra. The corner-sharing octahedral tilt angles range from 64-73°. In the second P site, P(1) is bonded to two equivalent Re(1), one P(2), and one P(4) atom to form distorted PRe2P2 tetrahedra that share corners with three equivalent Re(1)P6 octahedra, corners with two equivalent P(1)Re2P2 tetrahedra, corners with two equivalent P(2)ReP3 tetrahedra, corners with four equivalent P(4)Re2P2 tetrahedra, and corners with five equivalent P(3)ReP3 tetrahedra. The corner-sharing octahedral tilt angles range from 53-60°. In the third P site, P(2) is bonded to one Re(1), one P(1), and two equivalent P(3) atoms to form distorted PReP3 tetrahedra that share corners with four equivalent Re(1)P6 octahedra,  a cornercorner with one P(3)ReP3 tetrahedra, corners with two equivalent P(1)Re2P2 tetrahedra, corners with two equivalent P(2)ReP3 tetrahedra, and corners with five equivalent P(4)Re2P2 tetrahedra. The corner-sharing octahedral tilt angles range from 56-76°. In the fourth P site, P(3) is bonded to one Re(1), one P(4), and two equivalent P(2) atoms to form distorted PReP3 tetrahedra that share corners with four equivalent Re(1)P6 octahedra,  a cornercorner with one P(2)ReP3 tetrahedra, corners with two equivalent P(4)Re2P2 tetrahedra, corners with two equivalent P(3)ReP3 tetrahedra, and corners with five equivalent P(1)Re2P2 tetrahedra. The corner-sharing octahedral tilt angles range from 48-72°.
ReP4 is Hausmannite-like structured and crystallizes in the orthorhombic Pbca space group. Re(1) is bonded to one P(2), one P(3), two equivalent P(1), and two equivalent P(4) atoms to form ReP6 octahedra that share corners with two equivalent Re(1)P6 octahedra, corners with three equivalent P(1)Re2P2 tetrahedra, corners with three equivalent P(4)Re2P2 tetrahedra, corners with four equivalent P(2)ReP3 tetrahedra, corners with four equivalent P(3)ReP3 tetrahedra, and  an edgeedge with one Re(1)P6 octahedra. The corner-sharing octahedral tilt angles are 56°. The Re(1)-P(2) bond length is 2.40 Å. The Re(1)-P(3) bond length is 2.36 Å. There is one shorter (2.43 Å) and one longer (2.54 Å) Re(1)-P(1) bond length. There is one shorter (2.35 Å) and one longer (2.37 Å) Re(1)-P(4) bond length. There are four inequivalent P sites. In the first P site, P(4) is bonded to two equivalent Re(1), one P(1), and one P(3) atom to form distorted PRe2P2 tetrahedra that share corners with three equivalent Re(1)P6 octahedra, corners with two equivalent P(3)ReP3 tetrahedra, corners with four equivalent P(1)Re2P2 tetrahedra, corners with five equivalent P(2)ReP3 tetrahedra, and  an edgeedge with one P(4)Re2P2 tetrahedra. The corner-sharing octahedral tilt angles range from 64-73°. The P(4)-P(1) bond length is 2.21 Å. The P(4)-P(3) bond length is 2.19 Å. In the second P site, P(1) is bonded to two equivalent Re(1), one P(2), and one P(4) atom to form distorted PRe2P2 tetrahedra that share corners with three equivalent Re(1)P6 octahedra, corners with two equivalent P(1)Re2P2 tetrahedra, corners with two equivalent P(2)ReP3 tetrahedra, corners with four equivalent P(4)Re2P2 tetrahedra, and corners with five equivalent P(3)ReP3 tetrahedra. The corner-sharing octahedral tilt angles range from 53-60°. The P(1)-P(2) bond length is 2.25 Å. In the third P site, P(2) is bonded to one Re(1), one P(1), and two equivalent P(3) atoms to form distorted PReP3 tetrahedra that share corners with four equivalent Re(1)P6 octahedra,  a cornercorner with one P(3)ReP3 tetrahedra, corners with two equivalent P(1)Re2P2 tetrahedra, corners with two equivalent P(2)ReP3 tetrahedra, and corners with five equivalent P(4)Re2P2 tetrahedra. The corner-sharing octahedral tilt angles range from 56-76°. There is one shorter (2.18 Å) and one longer (2.20 Å) P(2)-P(3) bond length. In the fourth P site, P(3) is bonded to one Re(1), one P(4), and two equivalent P(2) atoms to form distorted PReP3 tetrahedra that share corners with four equivalent Re(1)P6 octahedra,  a cornercorner with one P(2)ReP3 tetrahedra, corners with two equivalent P(4)Re2P2 tetrahedra, corners with two equivalent P(3)ReP3 tetrahedra, and corners with five equivalent P(1)Re2P2 tetrahedra. The corner-sharing octahedral tilt angles range from 48-72°.