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| Figure 2 Perspective view of the title compound showing the disorder of the crown ether ring. H atoms omitted for clarity. Colour codes: C: black, Br: brown, Li: magenta, O: red. |
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| Figure 2 Perspective view of the title compound showing the disorder of the crown ether ring. H atoms omitted for clarity. Colour codes: C: black, Br: brown, Li: magenta, O: red. |