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October 2024 issue
Early view articles
organic compounds
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In the title compound, C6H10N2O2, the piperazine-2,3-dione ring adopts a half-chair conformation. In the crystal, the molecules are linked by weak C—H⋯O hydrogen bonds, forming (010) sheets.
CCDC reference: 2386002
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Bright-yellow single crystals of the title compound were synthesized as part of a project that explores the formation of earth-abundant transition-metal complexes of amidine oxides (AMOXs), to study their photophysical and redox properties. The HNCNO moiety of the compound shows double-bond delocalization over the N—C—N part, evident from the similar C—N bond distances.
CCDC reference: 2388273
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The crystal structure of a new S-methyl substituted dithiocarbazate imine containing the 5-methylisatin moiety is described.
CCDC reference: 2388258
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The crystal structure of a zwitterionic unsymmetrical hydroxyformamidine methanol monosolvate is reported.
CCDC reference: 2389686
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The crystal structure of a zwitterionic, non-symmetric hydroxyformamidine derivative is described.
CCDC reference: 2389590
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The title compound is significantly distorted from planarity, with a twist angle between the planes through the hydroxybenzene and acetamide groups being 23.5 (2)°. This conformation is supported by intramolecular C—H⋯O and N—H⋯Cl contacts. In the crystal, N—H⋯O hydrogen-bonding contacts between acetamide groups and O—H⋯O contacts between hydroxyl groups form tapes propagating parallel to [103].
CCDC reference: 2392239
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The crystal structure, non-bonding interactions and packing features of a novel galactose conjugated porphyrin are presented and discussed.
CCDC reference: 2388518