Re3Ni2P5 crystallizes in the orthorhombic Imm2 space group. There are six inequivalent Re sites. In the first Re site, Re(1) is bonded to two equivalent P(4) and four equivalent P(3) atoms to form a mixture of distorted edge and corner-sharing ReP6 pentagonal pyramids. In the second Re site, Re(2) is bonded to two equivalent P(5) and four equivalent P(4) atoms to form a mixture of distorted edge and corner-sharing ReP6 pentagonal pyramids. In the third Re site, Re(3) is bonded in a 6-coordinate geometry to two equivalent P(1) and four equivalent P(5) atoms. In the fourth Re site, Re(4) is bonded in a 6-coordinate geometry to two equivalent P(2) and four equivalent P(1) atoms. In the fifth Re site, Re(5) is bonded in a 6-coordinate geometry to two equivalent P(3) and four equivalent P(2) atoms. In the sixth Re site, Re(6) is bonded in a 6-coordinate geometry to two equivalent P(5) and four equivalent P(4) atoms. There are four inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a 6-coordinate geometry to two equivalent P(1) and four equivalent P(5) atoms. In the second Ni site, Ni(2) is bonded in a 6-coordinate geometry to two equivalent P(2) and four equivalent P(1) atoms. In the third Ni site, Ni(3) is bonded in a 6-coordinate geometry to two equivalent P(3) and four equivalent P(2) atoms. In the fourth Ni site, Ni(4) is bonded in a 6-coordinate geometry to two equivalent P(4) and four equivalent P(3) atoms. There are five inequivalent P sites. In the first P site, P(1) is bonded in a 7-coordinate geometry to one Re(3), two equivalent Re(4), one Ni(1), two equivalent Ni(2), and one P(1) atom. In the second P site, P(2) is bonded in a 7-coordinate geometry to one Re(4), two equivalent Re(5), one Ni(2), two equivalent Ni(3), and one P(2) atom. In the third P site, P(3) is bonded in a 7-coordinate geometry to one Re(5), two equivalent Re(1), one Ni(3), two equivalent Ni(4), and one P(3) atom. In the fourth P site, P(4) is bonded in a 7-coordinate geometry to one Re(1), two equivalent Re(2), two equivalent Re(6), one Ni(4), and one P(4) atom. In the fifth P site, P(5) is bonded in a 7-coordinate geometry to one Re(2), one Re(6), two equivalent Re(3), two equivalent Ni(1), and one P(5) atom.
Re3Ni2P5 crystallizes in the orthorhombic Imm2 space group. There are six inequivalent Re sites. In the first Re site, Re(1) is bonded to two equivalent P(4) and four equivalent P(3) atoms to form a mixture of distorted edge and corner-sharing ReP6 pentagonal pyramids. Both Re(1)-P(4) bond lengths are 2.38 Å. All Re(1)-P(3) bond lengths are 2.39 Å. In the second Re site, Re(2) is bonded to two equivalent P(5) and four equivalent P(4) atoms to form a mixture of distorted edge and corner-sharing ReP6 pentagonal pyramids. Both Re(2)-P(5) bond lengths are 2.38 Å. All Re(2)-P(4) bond lengths are 2.42 Å. In the third Re site, Re(3) is bonded in a 6-coordinate geometry to two equivalent P(1) and four equivalent P(5) atoms. Both Re(3)-P(1) bond lengths are 2.34 Å. All Re(3)-P(5) bond lengths are 2.43 Å. In the fourth Re site, Re(4) is bonded in a 6-coordinate geometry to two equivalent P(2) and four equivalent P(1) atoms. Both Re(4)-P(2) bond lengths are 2.36 Å. All Re(4)-P(1) bond lengths are 2.40 Å. In the fifth Re site, Re(5) is bonded in a 6-coordinate geometry to two equivalent P(3) and four equivalent P(2) atoms. Both Re(5)-P(3) bond lengths are 2.34 Å. All Re(5)-P(2) bond lengths are 2.41 Å. In the sixth Re site, Re(6) is bonded in a 6-coordinate geometry to two equivalent P(5) and four equivalent P(4) atoms. Both Re(6)-P(5) bond lengths are 2.52 Å. All Re(6)-P(4) bond lengths are 2.44 Å. There are four inequivalent Ni sites. In the first Ni site, Ni(1) is bonded in a 6-coordinate geometry to two equivalent P(1) and four equivalent P(5) atoms. Both Ni(1)-P(1) bond lengths are 2.54 Å. All Ni(1)-P(5) bond lengths are 2.43 Å. In the second Ni site, Ni(2) is bonded in a 6-coordinate geometry to two equivalent P(2) and four equivalent P(1) atoms. Both Ni(2)-P(2) bond lengths are 2.50 Å. All Ni(2)-P(1) bond lengths are 2.46 Å. In the third Ni site, Ni(3) is bonded in a 6-coordinate geometry to two equivalent P(3) and four equivalent P(2) atoms. Both Ni(3)-P(3) bond lengths are 2.51 Å. All Ni(3)-P(2) bond lengths are 2.44 Å. In the fourth Ni site, Ni(4) is bonded in a 6-coordinate geometry to two equivalent P(4) and four equivalent P(3) atoms. Both Ni(4)-P(4) bond lengths are 2.55 Å. All Ni(4)-P(3) bond lengths are 2.46 Å. There are five inequivalent P sites. In the first P site, P(1) is bonded in a 7-coordinate geometry to one Re(3), two equivalent Re(4), one Ni(1), two equivalent Ni(2), and one P(1) atom. The P(1)-P(1) bond length is 2.36 Å. In the second P site, P(2) is bonded in a 7-coordinate geometry to one Re(4), two equivalent Re(5), one Ni(2), two equivalent Ni(3), and one P(2) atom. The P(2)-P(2) bond length is 2.38 Å. In the third P site, P(3) is bonded in a 7-coordinate geometry to one Re(5), two equivalent Re(1), one Ni(3), two equivalent Ni(4), and one P(3) atom. The P(3)-P(3) bond length is 2.38 Å. In the fourth P site, P(4) is bonded in a 7-coordinate geometry to one Re(1), two equivalent Re(2), two equivalent Re(6), one Ni(4), and one P(4) atom. The P(4)-P(4) bond length is 2.45 Å. In the fifth P site, P(5) is bonded in a 7-coordinate geometry to one Re(2), one Re(6), two equivalent Re(3), two equivalent Ni(1), and one P(5) atom. The P(5)-P(5) bond length is 2.41 Å.