Seven 3D organic salts from 2-(imidazol-1-yl)-1-phenylethanone and acidic components

Cocrystallization of 2-(imidazol-1-yl)-1-phenylethanone with a series of organic acids gave seven crystalline salts with the compositions: 2-(imidazolium-1-yl)-1-phenylethanone trifluoroacetate (1) [(HL)+ · (tfa)-, tfa− = trifluoroacetate], bis(2-(imidazolium-1-yl)-1-phenylethanone) bis(hydrogen fumarate) monohydrate (2) [(HL)22+ · (Hfum)22− · H2O, Hfum = hydrogen fumarate], 2-(imidazolium-1-yl)-1-phenylethanone 3,5-dinitrobenzoate (3) [(HL)+ · (dnb−), dnb− = 3,5-dinitrobenzoate], 2-(imidazolium-1-yl)-1-phenylethanone 5-sulfosalicylate (4) [(HL)+ · (Hssa−), Hssa− = 5-sulfosalicylate], bis(2-(imidazolium-1-yl)-1-phenylethanone) 1,5-naphthalenedisulfonate (5) [(HL)22+ · (npa2−), npa2− = 1,5-naphthalenedisulfonate], 2-(imidazolium-1-yl)-1-phenylethanone 3-nitrohydrogenphthalate (6) [(HL+) · (Hnpta−), Hnpta− = 3-nitrohydrogenphthalate], and 2-(imidazolium-1-yl)-1-phenylethanone 4-nitrohydrogenphthalate (7) [(HL)+ · (Hnpa)-, Hnpa− = 4-nitrohydrogenphthalate]. The seven salts have been characterized by XRD technique, IR, and elemental analysis, and the melting points of all salts were also reported. Their structural and supramolecular aspects are fully analyzed.