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Journal logoCRYSTALLOGRAPHIC
COMMUNICATIONS
ISSN: 2056-9890

April 2024 issue

Early view articles

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research communications


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The crystal structure of the first reported glyoxal–tetra­aza­macrocycle condensate amine oxide is presented. The sterically hindered oxidized amine binds zinc(II) through the oxygen atom in its folded cleft, with an inter­nal hydrogen bond across the cleft between the oxygen and a protonated tertiary nitro­gen.

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The title compound, C14H12N2O4, obtained from 2-acetyl-6-aminona­phthalene through two-step reactions of acetyl­ation and nitration, is a Prodane fluorescent dye. In the crystal, the mol­ecules are assembled into two-dimensional sheet-like structures by inter­molecular N—H⋯O hydrogen bonding and π–π stacking inter­actions. Hirshfeld surface analysis indicates that the most important contributions to the crystal packing are from O⋯H/H⋯O (43.7%), H⋯H (31.0%), and C⋯H/H⋯C (8.5%) contacts.

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The CoII-catalysed synthesis and crystal structure is reported for the title compound, which features a symmetric N⋯H+⋯N unit.


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The crystal structure of the anionic lutetium(III) tetra­kis-CAPh complex (CAPh = carbacyl­amido­phosphate) with tetra­phenyl phosphate as the cation, PPh4[LuL4], is presented and discussed.

Research communications

Research communications are designed to help authors bring out the science behind their structure determinations. Authors are encouraged to report more than one structure in the same communication and also to include the results of investigations with other techniques. The Research communications format makes Acta E the natural home for structure determinations with interesting science to report.

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Acta E is included in the Emerging Sources Citation Index.

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