HfFeAs crystallizes in the orthorhombic Pnma space group. Hf(1) is bonded in a 11-coordinate geometry to six equivalent Fe(1) and five equivalent As(1) atoms. Fe(1) is bonded in a 4-coordinate geometry to six equivalent Hf(1) and four equivalent As(1) atoms. As(1) is bonded in a 9-coordinate geometry to five equivalent Hf(1) and four equivalent Fe(1) atoms.
HfFeAs crystallizes in the orthorhombic Pnma space group. Hf(1) is bonded in a 11-coordinate geometry to six equivalent Fe(1) and five equivalent As(1) atoms. There are a spread of Hf(1)-Fe(1) bond distances ranging from 2.84-3.02 Å. There are two shorter (2.73 Å) and three longer (2.75 Å) Hf(1)-As(1) bond lengths. Fe(1) is bonded in a 4-coordinate geometry to six equivalent Hf(1) and four equivalent As(1) atoms. There are a spread of Fe(1)-As(1) bond distances ranging from 2.38-2.46 Å. As(1) is bonded in a 9-coordinate geometry to five equivalent Hf(1) and four equivalent Fe(1) atoms.