HoAsSe crystallizes in the orthorhombic Pnma space group. Ho(1) is bonded in a 9-coordinate geometry to four equivalent As(1) and five equivalent Se(1) atoms. As(1) is bonded in a 8-coordinate geometry to four equivalent Ho(1) and four equivalent As(1) atoms. Se(1) is bonded to five equivalent Ho(1) atoms to form a mixture of distorted corner and edge-sharing SeHo5 trigonal bipyramids.
HoAsSe crystallizes in the orthorhombic Pnma space group. Ho(1) is bonded in a 9-coordinate geometry to four equivalent As(1) and five equivalent Se(1) atoms. There is one shorter (3.04 Å) and three longer (3.15 Å) Ho(1)-As(1) bond lengths. There are a spread of Ho(1)-Se(1) bond distances ranging from 2.87-3.00 Å. As(1) is bonded in a 8-coordinate geometry to four equivalent Ho(1) and four equivalent As(1) atoms. There are two shorter (2.54 Å) and two longer (3.00 Å) As(1)-As(1) bond lengths. Se(1) is bonded to five equivalent Ho(1) atoms to form a mixture of distorted corner and edge-sharing SeHo5 trigonal bipyramids.