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Figure 12
Part of the crystal structure of (4), showing the formation of one of the R88(62) rings, containing only anions and type 1 cations, that form the (100) sheet. For the sake of clarity, H atoms bonded to C atoms have been omitted. Atoms marked with an asterisk (*), a hash (#), a dollar sign ($), an ampersand (&) or an at sign (@) are at the symmetry positions (1 − x, 1 − y, 1 − z), (1 − x, −[1 \over 2] + y, [3 \over 2] − z), (1 − x, 1 − y, 2 − z), (x, y, 1 + z) and (x, [3 \over 2] − y, [1 \over 2] + z), respectively.

Journal logoSTRUCTURAL SCIENCE
CRYSTAL ENGINEERING
MATERIALS
ISSN: 2052-5206
Volume 60| Part 1| January 2004| Pages 65-75
doi:10.1107/S0108768103026739
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