Piperazine-1,4-diium bis(hydrogen 2-propyl-1H-imidazole-4,5-dicarboxylate) monohydrate
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چکیده
The title compound, C(4)H(12)N(2) (2+)·2C(8)H(9)N(2)O(4) (-)·H(2)O, is a hydrated proton-transfer compound obtained from 2-propyl-1H-imidazole-4,5-dicarb-oxy-lic acid and piperazine. The asymmetric unit contains one half-cation, one anion and half a water mol-ecule. There is a centre of inversion at the centre of the cation ring and the water molecule O atom lies on a twofold rotation axis. In the crystal, inter-molecular N-H⋯O and N-H⋯N hydrogen bonds help to construct a three-dimensional framework. Almost symmetrical, intramolecular O-H⋯O inter-actions are also observed.
منابع مشابه
Piperazine-1,4-diium bis(2-carboxy-1H-pyrazole-4-carboxylate) tetrahydrate
The asymmetric unit of the title compound, C(4)H(12)N(2) (2+)·2C(5)H(3)N(2)O(4) (-)·4H(2)O, comprises one-half of a piperazine-1,4-diium cation, which lies on an inversion centre, a 2-carb-oxy-1H-pyrazole-4-carboxyl-ate anion and two water mol-ecules. An extensive network of inter-molecular O-H⋯O, N-H⋯O, N-H⋯N and C-H⋯O hydrogen bonds between the cations, anions and water mol-ecules leads to a ...
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In the crystal structure of the title compound, (C(10)H(15)ClN(2))[ZnCl(4)]·H(2)O, the Zn atom is coordinated by four Cl atoms in a tetrahedral geometry. The water mol-ecules and the 1-(4-chloro-phen-yl)piperazine-1,4-diium cations inter-act with the [ZnCl(4)](2-) anions through O-H⋯Cl, N-H⋯Cl, N-H⋯O and C-H⋯Cl hydrogen bonds (five simple and one bifurcated). Inter-molecular π-π stacking inter-...
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In the title compound, C(27)H(31)FN(2)O(2+)·2Cl(-)·H(2)O, the piperazine ring adopts a chair conformation and both N atoms are protonated. The Cl(-) anions form strong hydrogen bonds to these protons. O/N-H⋯Cl and C-H⋯O hydrogen bonds link the anions, cations and water of hydration into a three-dimensional network.
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In the title polymeric complex, {[Zn(C24H22N6O2)(H2O)4](NO3)2·2H2O} n , the Zn(II) cation, located about a twofold rotation axis, is coordinated by two imidazole groups and four water mol-ecules in a distorted N2O4 octa-hedral geometry; among the four coordinate water mol-ecules, two are located on the same twofold rotation axis. The 1,4-bis-[4-(1H-imidazol-1-yl)benzo-yl]piperazine] ligand is c...
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The asymmetric unit of the title salt, C(4)H(12)N(2) (2+)·2C(9)H(5)O(6) (-), comprises one half of the piperazine-1,4-diium dication lying on an inversion centre and one 3,5-dicarboxy-benzoate anion. In the crystal, the ions are linked into a two-dimensional framework parallel to (101) by N-H⋯O and O-H⋯O hydrogen bonds.
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