K2RuBr6 crystallizes in the orthorhombic Pnma space group. K(1) is bonded to two equivalent Br(1), two equivalent Br(2), two equivalent Br(4), two equivalent Br(5), and four equivalent Br(3) atoms to form KBr12 cuboctahedra that share corners with twelve equivalent K(1)Br12 cuboctahedra, faces with six equivalent K(1)Br12 cuboctahedra, and faces with four equivalent Ru(1)Br6 octahedra. Ru(1) is bonded to one Br(1), one Br(2), one Br(4), one Br(5), and two equivalent Br(3) atoms to form RuBr6 octahedra that share faces with eight equivalent K(1)Br12 cuboctahedra. There are five inequivalent Br sites. In the first Br site, Br(5) is bonded to four equivalent K(1) and one Ru(1) atom to form a mixture of distorted edge, face, and corner-sharing BrK4Ru square pyramids. In the second Br site, Br(1) is bonded to four equivalent K(1) and one Ru(1) atom to form a mixture of distorted edge, face, and corner-sharing BrK4Ru square pyramids. In the third Br site, Br(2) is bonded to four equivalent K(1) and one Ru(1) atom to form a mixture of distorted edge, face, and corner-sharing BrK4Ru square pyramids. In the fourth Br site, Br(3) is bonded to four equivalent K(1) and one Ru(1) atom to form a mixture of distorted edge, face, and corner-sharing BrK4Ru square pyramids. In the fifth Br site, Br(4) is bonded to four equivalent K(1) and one Ru(1) atom to form a mixture of distorted edge, face, and corner-sharing BrK4Ru square pyramids.
K2RuBr6 crystallizes in the orthorhombic Pnma space group. K(1) is bonded to two equivalent Br(1), two equivalent Br(2), two equivalent Br(4), two equivalent Br(5), and four equivalent Br(3) atoms to form KBr12 cuboctahedra that share corners with twelve equivalent K(1)Br12 cuboctahedra, faces with six equivalent K(1)Br12 cuboctahedra, and faces with four equivalent Ru(1)Br6 octahedra. There is one shorter (3.67 Å) and one longer (3.73 Å) K(1)-Br(1) bond length. There is one shorter (3.64 Å) and one longer (3.76 Å) K(1)-Br(2) bond length. There is one shorter (3.63 Å) and one longer (3.66 Å) K(1)-Br(4) bond length. There is one shorter (3.68 Å) and one longer (3.76 Å) K(1)-Br(5) bond length. There are a spread of K(1)-Br(3) bond distances ranging from 3.61-3.66 Å. Ru(1) is bonded to one Br(1), one Br(2), one Br(4), one Br(5), and two equivalent Br(3) atoms to form RuBr6 octahedra that share faces with eight equivalent K(1)Br12 cuboctahedra. The Ru(1)-Br(1) bond length is 2.49 Å. The Ru(1)-Br(2) bond length is 2.48 Å. The Ru(1)-Br(4) bond length is 2.50 Å. The Ru(1)-Br(5) bond length is 2.47 Å. Both Ru(1)-Br(3) bond lengths are 2.51 Å. There are five inequivalent Br sites. In the first Br site, Br(5) is bonded to four equivalent K(1) and one Ru(1) atom to form a mixture of distorted edge, face, and corner-sharing BrK4Ru square pyramids. In the second Br site, Br(1) is bonded to four equivalent K(1) and one Ru(1) atom to form a mixture of distorted edge, face, and corner-sharing BrK4Ru square pyramids. In the third Br site, Br(2) is bonded to four equivalent K(1) and one Ru(1) atom to form a mixture of distorted edge, face, and corner-sharing BrK4Ru square pyramids. In the fourth Br site, Br(3) is bonded to four equivalent K(1) and one Ru(1) atom to form a mixture of distorted edge, face, and corner-sharing BrK4Ru square pyramids. In the fifth Br site, Br(4) is bonded to four equivalent K(1) and one Ru(1) atom to form a mixture of distorted edge, face, and corner-sharing BrK4Ru square pyramids.