Hydrogen-bonding chain and dimer motifs in pyridinium and morpholinium hydrogen oxalate salts.

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作者:Mulrooney David Z T, Madden Eimear C, Lonergan Rhona F, Slyusarchuk Valentyna D, Müller-Bunz Helge, Keene Tony D
We present here three compounds consisting of pyridinium or morpholinium hydrogen oxalates, each displaying different hydrogen-bonding motifs, resulting in chains for 4-(di-methyl-amino)-pyridinium hydrogen oxalate 0.22-hydrate, C(7)H(11)N(2) (+)·C(2)HO(4) (-)·0.22H(2)O (1), dimers for 4-tert-butyl-pyridinium hydrogen oxalate, C(9)H(14)N(+)·C(2)HO(4) (-) (2), and chains for morpholin-ium hydrogen oxalate, C(4)H(10)NO(+)·C(2)HO(4) (-) (3).

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