Table 2 Calculated intensities of reflections (002) and (1 −1 0) for a unit cell containing only H chains, I_H(hkl), only D chains, I_D(hkl), and containing equal amounts of H and D chains (each with half occupancy at the two chain positions in the unit cell), I_DH(hkl), using the previously reported atomic coordinates of cellulose II⁵ and the program SHELX¹⁷

From: Untangling the threads of cellulose mercerization