view article
Figure 2
RUB-15 layered silicate solved by assuming Ibam symmetry (a = 27.91, b = 8.41, c = 11.52 Å). Superimposed Fourier sections (y/b = 0.00–0.45) show the silicate sheets normal to [001]. The phases were obtained by S-TF from laboratory PD data at moderate resolution (d ≥ 2.2 Å). At this resolution, the tetrahedral Si units appear as spheres. The tetra­methyl­ammonium molecules are placed on the mirror planes.

IUCrJ
Volume 1| Part 5| August 2014| Pages 291-304
ISSN: 2052-2525
doi:10.1107/S2052252514017606