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Figure 1
Chemical diagrams showing the 2-aminoheterocyclic–carboxylic acid [R_2^2(8)] dimer for (a) an adduct or (b) a salt complex; (c) the naming scheme adopted for this study and (d) the resonance form suggested by Wheeler & Foxman (1994BB23) to explain the shortened C2—N21 bond length

Journal logoSTRUCTURAL SCIENCE
CRYSTAL ENGINEERING
MATERIALS
ISSN: 2052-5206
Volume 60| Part 6| November 2004| Pages 748-754
doi:10.1107/S0108768104023791
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