Low-temperature (110 K) single-crystal neutron diffraction study of (±)-camphoric anhydride

This single-crystal neutron diffraction study of (±)-camphoric anhydride [systematic name: (RS)-1,8,8-trimeth­yl-3-oxa­bicyclo­[3.2.1]octa­ne-2,4-dione], C₁₀H₁₄O₃, at 110 K was undertaken to determine accurately the positions of the H atoms. The crystal packing of these mol­ecules depends on inter­molecular hydrogen bonding. The (+) and (−) mol­ecules are held together by weak C—H...O inter­actions to form chains in the crystal structure.