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Figure 2
An overlay diagram of the two independent, three-mol­ecule aggregates in (I)[link]. The N1-pyrid­yl/O3-carb­oxy­lic acid (red image) and N3-pyrid­yl/O5-carb­oxy­lic acid (blue image) aggregates have been overlapped so that the central C2N2O2 chromophores are coincident.

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COMMUNICATIONS
ISSN: 2056-9890
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