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Figure 6
(ach) difference Fourier map centred in one urea tunnel. The maps (a) and (b) have been calculated as in Fig. 5[link]. The scale is in Å. In this case truncation produces a wavy shape [clearly reduced in (b)] of the electronic density along the tunnel axis, which could mask the true modulation of the guest electron density.

Journal logoSTRUCTURAL SCIENCE
CRYSTAL ENGINEERING
MATERIALS
ISSN: 2052-5206
Volume 57| Part 3| May 2001| Pages 386-393
doi:10.1107/S0108768101002166
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