Table 6. Distances (Å) between split positions for the average structures and the total modulated displacements (Å) for the modulated structures of .

		Average structure		Modulated structure
Atom	Mumme et al. (1995 ▸)	clinker_0	clinker_2.5	clinker_0	clinker_2.5
Ca1	0.34770			0.404 (1)	0.320 (1)
Ca2	0.24394			0.396 (1)	0.324 (1)
Si1				0.272 (1)	0.278 (1)
O1	0.58797†	0.696 (12)†	0.670 (11)†	0.938 (1)	0.81 (1)
O2	0.63470	0.684 (6)	0.22 (5)	0.665 (1)	0.617 (1)
O3	0.76495	0.790 (5)	0.754 (10)	0.797 (1)	0.723 (1)

^†These values correspond to the O1—O1_2 distance.