metal-organic compounds
Poly[piperazinediium [aquabis(μ-pyridine-2,5-dicarboxylato)zincate] dihydrate]
aFaculty of Chemistry, Teacher Training University, 49 Mofateh Avenue 15614, Tehran, Iran
*Correspondence e-mail: haghabozorg@yahoo.com
The polymeric title compound, {(C4H12N2)[Zn(C7H3NO4)2(H2O)]·2H2O}n, was obtained by the reaction of zinc(II) nitrate hexahydrate with the proton-transfer compound (pipzH2)(py-2,5-dc) (where pipz is piperazine and py-2,5-dcH2 is pyridine-2,5-dicarboxylic acid) in aqueous solution. Each ZnII atom is coordinated in a distorted octahedral geometry by four O atoms and two N atoms from one water molecule and two (py-2,5-dc)2– ligands, which also act as bridging ligands between ZnII atoms. π–π Stacking interactions between two aromatic rings of (py-2,5-dc)2– fragments, with centroid–centroid distances of 3.4747 (7) and 3.7081 (7) Å are observed. The is stabilized by O—H⋯O and N—H⋯O hydrogen bonds.
Related literature
For related literature, see: Aghabozorg et al. (2007, 2007a,b); Sheshmani et al. (2007).
Experimental
Crystal data
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Refinement
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Data collection: APEX2 (Bruker, 2005); cell SAINT (Bruker, 2005); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: SHELXTL (Bruker, 2005); software used to prepare material for publication: SHELXTL.
Supporting information
https://doi.org/10.1107/S1600536807063787/bt2642sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536807063787/bt2642Isup2.hkl
The proton transfer compound was prepared by a reaction between piperazineand pyridine-2,5-dicarboxylicacid (Sheshmani, et al., 2007). A solution of Zn(NO3)2.6H2O (130 mg, 0.5 mmol) in water (15 ml) was added to an aqueous solution of (pipzH2)(py-2,5-dc) (253 mg, 1.0 mmol) in water (15 ml) in a 1:2 molar ratio. Colorless crystals were obtained after a few days at room temperature.
The hydrogen atoms of NH2 groups and water molecules were found in difference Fourier synthesis. Nevertheless, all hydrogen atoms were refined using a riding model with with the Uiso(H) parameters equal to 1.2 Ueq(C,N,O) and Caromatic—H = 0.95 Å, Cmethylene—H = 0.99 Å, O—H = 0.82Å and N—H = 0.92 Å.
Our research group has recently focused on one-pot synthesis of water soluble self-assembly systems that can function as suitable ligands in the synthesis of metal complexes (Aghabozorg et al., 2007, 2007a, 2007b).
The molecular structure of the title compound is shown in Fig. 1. The negative charge of the anionic complex is neutralized by dicationic piperazinediium species.
The ZnII atom is hexacoordinated by two nitrogen atoms, two O atoms from carboxylate groups of two (py-2,5-dc)2– fragments, one O atom from a bridging (py-2,5-dc)2– ligand and one O atom from a coordinated water molecule. O7 and O9 atoms occupy the axial positions, while N1, N2, O1 and O5 atoms form the equatorial plane. The O9—Zn1—O7i (i: -x + 1, y - 1/2, -z + 1/2) bond angle revealed ~7.6° deviation from linearity. There are two uncoordinated water molecules and one piperazinediium ion as counter-ion, with some hydrogen bonds to water molecules and coordinated COO- groups of (py-2,5-dc)2– fragments.
The (py-2,5-dc)2– fragments are bridging via carboxylate group, connecting the ZnII atoms together into a layered structure in which the space between the [Zn(H2O)(py-2,5-dc)2]2– species is filled by piperazinediium ions and water molecules (Fig. 2).
The dihedral angle between the aromatic rings of (py-2,5-dc)2– groups connected to the same Zn atom is 6.82 (6)°, indicating that these fragments are almost coparallel.
π-π stacking interactions between two aromatic rings of (py-2,5-dc)2–, with centroid-centroid distances of 3.4747 (7) Å (symmetry code: -x, 1/2 + y, 1/2 - z) and 3.7081 (7) Å (symmetry code: -x, -1 - y, -z) are observed in the title compound (Fig. 3).
For related literature, see: Aghabozorg et al. (2007, 2007a,b); Sheshmani et al. (2007).
Data collection: APEX2 (Bruker, 2005); cell
SAINT (Bruker, 2005); data reduction: SAINT (Bruker, 2005); program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: SHELXTL (Bruker, 2005); software used to prepare material for publication: SHELXTL (Bruker, 2005).Fig. 1. The molecular structure of the title compound, showing the atom-numbering scheme. Displacement ellipsoids are drawn at the 50% probability level.Atoms marked with a are related by the symmetry code: -x + 1, y - 1/2, -z + 1/2. | |
Fig. 2. Packing diagram of the title compound, the space between [Zn(H2O)(py-2,5-dc)2]2– layers, is filled by piperazinediium ions and water molecules. | |
Fig. 3. π-π Stacking interactions between aromatic rings of pyridine-2,5-dicarboxylate fragments with centroid-centroid distances of 3.4747 (7) Å (symmetry code: -x, 1/2 + y, 1/2 - z) and 3.7081 (7) Å (symmetry code: -x, -1 - y, -z). |
(C4H12N2)[Zn(C7H3NO4)2(H2O)]·2H2O | F(000) = 1112 |
Mr = 537.78 | Dx = 1.692 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 583 reflections |
a = 13.1752 (5) Å | θ = 3–30° |
b = 11.9066 (5) Å | µ = 1.24 mm−1 |
c = 13.6902 (5) Å | T = 100 K |
β = 100.567 (1)° | Prism, colourless |
V = 2111.19 (14) Å3 | 0.24 × 0.20 × 0.18 mm |
Z = 4 |
Bruker APEXII CCD area-detector' diffractometer | 6148 independent reflections |
Radiation source: fine-focus sealed tube | 5458 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.029 |
ω scans | θmax = 30.0°, θmin = 1.6° |
Absorption correction: multi-scan (SADABS; Bruker, 2005) | h = −18→18 |
Tmin = 0.756, Tmax = 0.808 | k = −16→16 |
26339 measured reflections | l = −19→19 |
Refinement on F2 | Primary atom site location: structure-invariant direct methods |
Least-squares matrix: full | Secondary atom site location: difference Fourier map |
R[F2 > 2σ(F2)] = 0.025 | Hydrogen site location: mixed |
wR(F2) = 0.069 | H-atom parameters constrained |
S = 1.03 | w = 1/[σ2(Fo2) + (0.0365P)2 + 1.P] where P = (Fo2 + 2Fc2)/3 |
6148 reflections | (Δ/σ)max = 0.001 |
307 parameters | Δρmax = 0.83 e Å−3 |
0 restraints | Δρmin = −0.38 e Å−3 |
(C4H12N2)[Zn(C7H3NO4)2(H2O)]·2H2O | V = 2111.19 (14) Å3 |
Mr = 537.78 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 13.1752 (5) Å | µ = 1.24 mm−1 |
b = 11.9066 (5) Å | T = 100 K |
c = 13.6902 (5) Å | 0.24 × 0.20 × 0.18 mm |
β = 100.567 (1)° |
Bruker APEXII CCD area-detector' diffractometer | 6148 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2005) | 5458 reflections with I > 2σ(I) |
Tmin = 0.756, Tmax = 0.808 | Rint = 0.029 |
26339 measured reflections |
R[F2 > 2σ(F2)] = 0.025 | 0 restraints |
wR(F2) = 0.069 | H-atom parameters constrained |
S = 1.03 | Δρmax = 0.83 e Å−3 |
6148 reflections | Δρmin = −0.38 e Å−3 |
307 parameters |
Geometry. All e.s.d.'s (except the e.s.d. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell e.s.d.'s are taken into account individually in the estimation of e.s.d.'s in distances, angles and torsion angles; correlations between e.s.d.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell e.s.d.'s is used for estimating e.s.d.'s involving l.s. planes. |
Refinement. Refinement of F2 against ALL reflections. The weighted R-factor wR and goodness of fit S are based on F2, conventional R-factors R are based on F, with F set to zero for negative F2. The threshold expression of F2 > σ(F2) is used only for calculating R-factors(gt) etc. and is not relevant to the choice of reflections for refinement. R-factors based on F2 are statistically about twice as large as those based on F, and R- factors based on ALL data will be even larger. |
x | y | z | Uiso*/Ueq | ||
Zn1 | 0.157893 (10) | −0.413714 (11) | 0.162746 (10) | 0.00887 (5) | |
O1 | 0.22982 (7) | −0.25877 (8) | 0.17492 (7) | 0.01233 (17) | |
O2 | 0.20008 (9) | −0.07463 (9) | 0.15203 (11) | 0.0298 (3) | |
O3 | −0.32052 (7) | −0.19745 (8) | 0.00316 (8) | 0.01648 (19) | |
O4 | −0.28405 (7) | −0.37980 (8) | 0.01990 (8) | 0.01749 (19) | |
O5 | 0.30053 (7) | −0.48325 (7) | 0.22242 (7) | 0.01115 (17) | |
O6 | 0.38201 (7) | −0.64637 (8) | 0.26384 (8) | 0.0179 (2) | |
O7 | −0.11016 (7) | −0.88980 (8) | 0.19126 (7) | 0.01188 (17) | |
O8 | −0.17065 (7) | −0.73902 (8) | 0.10247 (7) | 0.01579 (19) | |
O9 | 0.18192 (7) | −0.43941 (8) | 0.01814 (7) | 0.01400 (18) | |
H9A | 0.1826 | −0.3867 | −0.0203 | 0.017* | |
H9B | 0.2171 | −0.4917 | 0.0041 | 0.017* | |
N1 | 0.03069 (8) | −0.30642 (9) | 0.10358 (8) | 0.00939 (19) | |
N2 | 0.11783 (8) | −0.58497 (8) | 0.17585 (8) | 0.00904 (19) | |
C1 | 0.05938 (9) | −0.19776 (10) | 0.10974 (9) | 0.0110 (2) | |
C2 | −0.01048 (10) | −0.11078 (11) | 0.08528 (10) | 0.0135 (2) | |
H2A | 0.0123 | −0.0349 | 0.0895 | 0.016* | |
C3 | −0.11439 (10) | −0.13610 (11) | 0.05445 (10) | 0.0134 (2) | |
H3A | −0.1637 | −0.0777 | 0.0380 | 0.016* | |
C4 | −0.14516 (9) | −0.24797 (10) | 0.04793 (9) | 0.0103 (2) | |
C5 | −0.06942 (9) | −0.33022 (10) | 0.07249 (9) | 0.0099 (2) | |
H5A | −0.0898 | −0.4068 | 0.0669 | 0.012* | |
C6 | 0.17291 (10) | −0.17423 (11) | 0.14852 (10) | 0.0141 (2) | |
C7 | −0.25825 (9) | −0.27880 (11) | 0.02066 (9) | 0.0116 (2) | |
C8 | 0.20087 (9) | −0.65035 (10) | 0.20725 (9) | 0.0093 (2) | |
C9 | 0.19325 (9) | −0.76566 (10) | 0.21772 (9) | 0.0109 (2) | |
H9C | 0.2534 | −0.8101 | 0.2377 | 0.013* | |
C10 | 0.09628 (9) | −0.81510 (10) | 0.19858 (9) | 0.0108 (2) | |
H10A | 0.0892 | −0.8938 | 0.2064 | 0.013* | |
C11 | 0.00939 (9) | −0.74839 (10) | 0.16771 (9) | 0.0094 (2) | |
C12 | 0.02468 (9) | −0.63331 (10) | 0.15639 (9) | 0.0100 (2) | |
H12A | −0.0338 | −0.5873 | 0.1338 | 0.012* | |
C13 | 0.30435 (9) | −0.59080 (10) | 0.23404 (9) | 0.0104 (2) | |
C14 | −0.09852 (9) | −0.79664 (10) | 0.15208 (9) | 0.0101 (2) | |
N3 | 0.35861 (8) | −0.31370 (9) | 0.36536 (8) | 0.0119 (2) | |
H3B | 0.2960 | −0.2863 | 0.3754 | 0.014* | |
H3C | 0.3469 | −0.3564 | 0.3084 | 0.014* | |
N4 | 0.49509 (8) | −0.22071 (9) | 0.53234 (8) | 0.0123 (2) | |
H4A | 0.5059 | −0.1777 | 0.5892 | 0.015* | |
H4B | 0.5580 | −0.2480 | 0.5233 | 0.015* | |
C15 | 0.42751 (10) | −0.21754 (11) | 0.35168 (10) | 0.0149 (2) | |
H15A | 0.3933 | −0.1696 | 0.2962 | 0.018* | |
H15B | 0.4926 | −0.2463 | 0.3347 | 0.018* | |
C16 | 0.45104 (10) | −0.14881 (11) | 0.44632 (10) | 0.0150 (2) | |
H16A | 0.5008 | −0.0886 | 0.4384 | 0.018* | |
H16B | 0.3869 | −0.1129 | 0.4588 | 0.018* | |
C17 | 0.42647 (10) | −0.31659 (11) | 0.54554 (10) | 0.0136 (2) | |
H17A | 0.3609 | −0.2879 | 0.5616 | 0.016* | |
H17B | 0.4602 | −0.3642 | 0.6014 | 0.016* | |
C18 | 0.40415 (10) | −0.38587 (11) | 0.45105 (10) | 0.0135 (2) | |
H18A | 0.4689 | −0.4202 | 0.4384 | 0.016* | |
H18B | 0.3555 | −0.4471 | 0.4589 | 0.016* | |
O1W | 0.37141 (7) | 0.04431 (8) | 0.14623 (7) | 0.01687 (19) | |
H1WA | 0.3491 | 0.0939 | 0.1065 | 0.020* | |
H1WB | 0.3222 | 0.0028 | 0.1486 | 0.020* | |
O2W | 0.50510 (8) | 0.07757 (9) | 0.31667 (8) | 0.0206 (2) | |
H2WA | 0.4610 | 0.0668 | 0.2669 | 0.025* | |
H2WB | 0.5594 | 0.0516 | 0.3052 | 0.025* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Zn1 | 0.00708 (7) | 0.00737 (7) | 0.01160 (7) | −0.00038 (5) | 0.00023 (5) | −0.00018 (5) |
O1 | 0.0093 (4) | 0.0106 (4) | 0.0159 (4) | −0.0009 (3) | −0.0006 (3) | 0.0007 (3) |
O2 | 0.0161 (5) | 0.0113 (5) | 0.0573 (8) | −0.0044 (4) | −0.0058 (5) | 0.0039 (5) |
O3 | 0.0096 (4) | 0.0164 (5) | 0.0234 (5) | 0.0031 (3) | 0.0029 (4) | 0.0053 (4) |
O4 | 0.0101 (4) | 0.0143 (4) | 0.0279 (5) | 0.0001 (3) | 0.0030 (4) | −0.0020 (4) |
O5 | 0.0089 (4) | 0.0092 (4) | 0.0148 (4) | −0.0007 (3) | 0.0008 (3) | −0.0009 (3) |
O6 | 0.0098 (4) | 0.0143 (4) | 0.0277 (5) | 0.0015 (3) | −0.0013 (4) | 0.0024 (4) |
O7 | 0.0132 (4) | 0.0094 (4) | 0.0134 (4) | −0.0020 (3) | 0.0035 (3) | 0.0006 (3) |
O8 | 0.0097 (4) | 0.0159 (5) | 0.0209 (5) | −0.0020 (3) | 0.0001 (3) | 0.0068 (4) |
O9 | 0.0179 (5) | 0.0108 (4) | 0.0140 (4) | 0.0025 (3) | 0.0045 (3) | 0.0017 (3) |
N1 | 0.0086 (4) | 0.0095 (5) | 0.0100 (5) | 0.0000 (3) | 0.0015 (4) | −0.0007 (4) |
N2 | 0.0090 (5) | 0.0088 (4) | 0.0094 (4) | −0.0001 (3) | 0.0019 (4) | −0.0004 (3) |
C1 | 0.0103 (5) | 0.0105 (5) | 0.0118 (5) | −0.0009 (4) | 0.0010 (4) | 0.0002 (4) |
C2 | 0.0144 (6) | 0.0083 (5) | 0.0169 (6) | 0.0002 (4) | 0.0005 (5) | 0.0005 (4) |
C3 | 0.0124 (5) | 0.0114 (6) | 0.0161 (6) | 0.0030 (4) | 0.0014 (4) | 0.0003 (4) |
C4 | 0.0091 (5) | 0.0126 (5) | 0.0095 (5) | 0.0014 (4) | 0.0022 (4) | 0.0006 (4) |
C5 | 0.0096 (5) | 0.0097 (5) | 0.0103 (5) | 0.0000 (4) | 0.0014 (4) | −0.0003 (4) |
C6 | 0.0115 (5) | 0.0118 (5) | 0.0182 (6) | −0.0019 (4) | 0.0002 (5) | 0.0011 (5) |
C7 | 0.0083 (5) | 0.0156 (6) | 0.0110 (5) | 0.0009 (4) | 0.0024 (4) | 0.0002 (4) |
C8 | 0.0082 (5) | 0.0110 (5) | 0.0087 (5) | 0.0000 (4) | 0.0020 (4) | −0.0009 (4) |
C9 | 0.0097 (5) | 0.0103 (5) | 0.0126 (5) | 0.0016 (4) | 0.0021 (4) | 0.0002 (4) |
C10 | 0.0127 (5) | 0.0082 (5) | 0.0117 (5) | −0.0003 (4) | 0.0025 (4) | −0.0001 (4) |
C11 | 0.0093 (5) | 0.0098 (5) | 0.0093 (5) | −0.0011 (4) | 0.0027 (4) | −0.0007 (4) |
C12 | 0.0085 (5) | 0.0105 (5) | 0.0108 (5) | −0.0003 (4) | 0.0014 (4) | 0.0003 (4) |
C13 | 0.0093 (5) | 0.0116 (5) | 0.0103 (5) | −0.0007 (4) | 0.0019 (4) | −0.0011 (4) |
C14 | 0.0099 (5) | 0.0102 (5) | 0.0107 (5) | −0.0019 (4) | 0.0034 (4) | −0.0014 (4) |
N3 | 0.0084 (4) | 0.0138 (5) | 0.0125 (5) | 0.0001 (4) | −0.0004 (4) | −0.0021 (4) |
N4 | 0.0085 (4) | 0.0145 (5) | 0.0134 (5) | −0.0015 (4) | 0.0008 (4) | −0.0031 (4) |
C15 | 0.0136 (6) | 0.0173 (6) | 0.0134 (6) | −0.0029 (5) | 0.0013 (5) | 0.0012 (5) |
C16 | 0.0150 (6) | 0.0116 (6) | 0.0175 (6) | −0.0013 (4) | 0.0007 (5) | 0.0000 (5) |
C17 | 0.0116 (5) | 0.0161 (6) | 0.0130 (6) | −0.0028 (4) | 0.0019 (4) | 0.0001 (5) |
C18 | 0.0123 (5) | 0.0111 (5) | 0.0161 (6) | −0.0005 (4) | 0.0001 (4) | 0.0000 (4) |
O1W | 0.0133 (4) | 0.0167 (5) | 0.0195 (5) | −0.0004 (4) | 0.0002 (4) | 0.0024 (4) |
O2W | 0.0142 (5) | 0.0265 (5) | 0.0203 (5) | 0.0045 (4) | 0.0007 (4) | −0.0099 (4) |
Zn1—O1 | 2.0668 (9) | C8—C13 | 1.5208 (17) |
Zn1—O5 | 2.0788 (9) | C9—C10 | 1.3874 (17) |
Zn1—O9 | 2.0840 (9) | C9—H9C | 0.9500 |
Zn1—N2 | 2.1222 (10) | C10—C11 | 1.3938 (17) |
Zn1—N1 | 2.1445 (10) | C10—H10A | 0.9500 |
Zn1—O7i | 2.2209 (9) | C11—C12 | 1.3976 (16) |
O1—C6 | 1.2675 (16) | C11—C14 | 1.5119 (16) |
O2—C6 | 1.2372 (16) | C12—H12A | 0.9500 |
O3—C7 | 1.2636 (15) | N3—C18 | 1.4888 (17) |
O4—C7 | 1.2492 (16) | N3—C15 | 1.4941 (17) |
O5—C13 | 1.2903 (15) | N3—H3B | 0.9201 |
O6—C13 | 1.2239 (15) | N3—H3C | 0.9200 |
O7—C14 | 1.2536 (15) | N4—C16 | 1.4852 (17) |
O7—Zn1ii | 2.2209 (9) | N4—C17 | 1.4877 (16) |
O8—C14 | 1.2643 (15) | N4—H4A | 0.9200 |
O9—H9A | 0.8200 | N4—H4B | 0.9199 |
O9—H9B | 0.8199 | C15—C16 | 1.5156 (18) |
N1—C5 | 1.3399 (15) | C15—H15A | 0.9900 |
N1—C1 | 1.3461 (16) | C15—H15B | 0.9900 |
N2—C12 | 1.3374 (15) | C16—H16A | 0.9900 |
N2—C8 | 1.3472 (15) | C16—H16B | 0.9900 |
C1—C2 | 1.3852 (17) | C17—C18 | 1.5167 (18) |
C1—C6 | 1.5187 (17) | C17—H17A | 0.9900 |
C2—C3 | 1.3898 (18) | C17—H17B | 0.9900 |
C2—H2A | 0.9500 | C18—H18A | 0.9900 |
C3—C4 | 1.3904 (17) | C18—H18B | 0.9900 |
C3—H3A | 0.9500 | O1W—H1WA | 0.8200 |
C4—C5 | 1.3946 (16) | O1W—H1WB | 0.8200 |
C4—C7 | 1.5133 (17) | O2W—H2WA | 0.8200 |
C5—H5A | 0.9500 | O2W—H2WB | 0.8199 |
C8—C9 | 1.3859 (17) | ||
O1—Zn1—O5 | 87.46 (3) | C9—C10—C11 | 119.48 (11) |
O1—Zn1—O9 | 93.46 (4) | C9—C10—H10A | 120.3 |
O5—Zn1—O9 | 91.78 (4) | C11—C10—H10A | 120.3 |
O1—Zn1—N2 | 165.55 (4) | C10—C11—C12 | 117.73 (11) |
O5—Zn1—N2 | 78.76 (4) | C10—C11—C14 | 121.67 (11) |
O9—Zn1—N2 | 91.30 (4) | C12—C11—C14 | 120.52 (11) |
O1—Zn1—N1 | 79.27 (4) | N2—C12—C11 | 123.05 (11) |
O5—Zn1—N1 | 166.71 (4) | N2—C12—H12A | 118.5 |
O9—Zn1—N1 | 88.45 (4) | C11—C12—H12A | 118.5 |
N2—Zn1—N1 | 114.52 (4) | O6—C13—O5 | 126.08 (12) |
O1—Zn1—O7i | 90.82 (4) | O6—C13—C8 | 119.08 (11) |
O5—Zn1—O7i | 94.71 (3) | O5—C13—C8 | 114.84 (10) |
O9—Zn1—O7i | 172.38 (4) | O7—C14—O8 | 124.83 (11) |
N2—Zn1—O7i | 86.06 (4) | O7—C14—C11 | 117.47 (11) |
N1—Zn1—O7i | 86.15 (4) | O8—C14—C11 | 117.67 (11) |
C6—O1—Zn1 | 116.57 (8) | C18—N3—C15 | 112.01 (10) |
C13—O5—Zn1 | 117.11 (8) | C18—N3—H3B | 109.2 |
C14—O7—Zn1ii | 125.14 (8) | C15—N3—H3B | 109.2 |
Zn1—O9—H9A | 121.2 | C18—N3—H3C | 109.2 |
Zn1—O9—H9B | 121.7 | C15—N3—H3C | 109.2 |
H9A—O9—H9B | 111.0 | H3B—N3—H3C | 107.9 |
C5—N1—C1 | 118.15 (10) | C16—N4—C17 | 112.39 (10) |
C5—N1—Zn1 | 130.51 (8) | C16—N4—H4A | 109.1 |
C1—N1—Zn1 | 110.97 (8) | C17—N4—H4A | 109.1 |
C12—N2—C8 | 118.47 (10) | C16—N4—H4B | 109.1 |
C12—N2—Zn1 | 129.05 (8) | C17—N4—H4B | 109.1 |
C8—N2—Zn1 | 112.47 (8) | H4A—N4—H4B | 107.9 |
N1—C1—C2 | 122.48 (11) | N3—C15—C16 | 109.90 (10) |
N1—C1—C6 | 116.52 (11) | N3—C15—H15A | 109.7 |
C2—C1—C6 | 120.98 (11) | C16—C15—H15A | 109.7 |
C1—C2—C3 | 119.02 (12) | N3—C15—H15B | 109.7 |
C1—C2—H2A | 120.5 | C16—C15—H15B | 109.7 |
C3—C2—H2A | 120.5 | H15A—C15—H15B | 108.2 |
C2—C3—C4 | 119.13 (11) | N4—C16—C15 | 110.83 (11) |
C2—C3—H3A | 120.4 | N4—C16—H16A | 109.5 |
C4—C3—H3A | 120.4 | C15—C16—H16A | 109.5 |
C3—C4—C5 | 118.03 (11) | N4—C16—H16B | 109.5 |
C3—C4—C7 | 120.70 (11) | C15—C16—H16B | 109.5 |
C5—C4—C7 | 121.19 (11) | H16A—C16—H16B | 108.1 |
N1—C5—C4 | 123.18 (11) | N4—C17—C18 | 109.93 (10) |
N1—C5—H5A | 118.4 | N4—C17—H17A | 109.7 |
C4—C5—H5A | 118.4 | C18—C17—H17A | 109.7 |
O2—C6—O1 | 126.75 (12) | N4—C17—H17B | 109.7 |
O2—C6—C1 | 116.73 (12) | C18—C17—H17B | 109.7 |
O1—C6—C1 | 116.51 (11) | H17A—C17—H17B | 108.2 |
O4—C7—O3 | 124.76 (12) | N3—C18—C17 | 110.19 (10) |
O4—C7—C4 | 119.32 (11) | N3—C18—H18A | 109.6 |
O3—C7—C4 | 115.88 (11) | C17—C18—H18A | 109.6 |
N2—C8—C9 | 122.37 (11) | N3—C18—H18B | 109.6 |
N2—C8—C13 | 116.57 (10) | C17—C18—H18B | 109.6 |
C9—C8—C13 | 121.04 (11) | H18A—C18—H18B | 108.1 |
C8—C9—C10 | 118.85 (11) | H1WA—O1W—H1WB | 105.7 |
C8—C9—H9C | 120.6 | H2WA—O2W—H2WB | 107.0 |
C10—C9—H9C | 120.6 | ||
O5—Zn1—O1—C6 | −178.14 (10) | C7—C4—C5—N1 | −175.31 (11) |
O9—Zn1—O1—C6 | 90.24 (10) | Zn1—O1—C6—O2 | 178.27 (13) |
N2—Zn1—O1—C6 | −160.74 (14) | Zn1—O1—C6—C1 | −0.95 (15) |
N1—Zn1—O1—C6 | 2.47 (9) | N1—C1—C6—O2 | 178.30 (13) |
O7i—Zn1—O1—C6 | −83.46 (9) | C2—C1—C6—O2 | −3.7 (2) |
O1—Zn1—O5—C13 | 179.97 (9) | N1—C1—C6—O1 | −2.41 (17) |
O9—Zn1—O5—C13 | −86.64 (9) | C2—C1—C6—O1 | 175.64 (12) |
N2—Zn1—O5—C13 | 4.33 (9) | C3—C4—C7—O4 | −176.67 (12) |
N1—Zn1—O5—C13 | −177.44 (14) | C5—C4—C7—O4 | −0.21 (18) |
O7i—Zn1—O5—C13 | 89.35 (9) | C3—C4—C7—O3 | 1.13 (17) |
O1—Zn1—N1—C5 | −176.42 (11) | C5—C4—C7—O3 | 177.58 (11) |
O5—Zn1—N1—C5 | −179.05 (13) | C12—N2—C8—C9 | 1.56 (18) |
O9—Zn1—N1—C5 | 89.77 (11) | Zn1—N2—C8—C9 | −177.67 (9) |
N2—Zn1—N1—C5 | −0.96 (12) | C12—N2—C8—C13 | −176.63 (11) |
O7i—Zn1—N1—C5 | −84.85 (11) | Zn1—N2—C8—C13 | 4.14 (13) |
O1—Zn1—N1—C1 | −3.59 (8) | N2—C8—C9—C10 | −2.33 (18) |
O5—Zn1—N1—C1 | −6.2 (2) | C13—C8—C9—C10 | 175.78 (11) |
O9—Zn1—N1—C1 | −97.41 (9) | C8—C9—C10—C11 | 1.14 (18) |
N2—Zn1—N1—C1 | 171.87 (8) | C9—C10—C11—C12 | 0.67 (18) |
O7i—Zn1—N1—C1 | 87.97 (8) | C9—C10—C11—C14 | −176.08 (11) |
O1—Zn1—N2—C12 | 158.72 (13) | C8—N2—C12—C11 | 0.41 (18) |
O5—Zn1—N2—C12 | 176.45 (11) | Zn1—N2—C12—C11 | 179.49 (9) |
O9—Zn1—N2—C12 | −92.00 (11) | C10—C11—C12—N2 | −1.51 (18) |
N1—Zn1—N2—C12 | −3.11 (12) | C14—C11—C12—N2 | 175.29 (11) |
O7i—Zn1—N2—C12 | 80.84 (11) | Zn1—O5—C13—O6 | 176.62 (11) |
O1—Zn1—N2—C8 | −22.2 (2) | Zn1—O5—C13—C8 | −3.37 (13) |
O5—Zn1—N2—C8 | −4.43 (8) | N2—C8—C13—O6 | 179.33 (12) |
O9—Zn1—N2—C8 | 87.12 (8) | C9—C8—C13—O6 | 1.12 (18) |
N1—Zn1—N2—C8 | 176.02 (8) | N2—C8—C13—O5 | −0.67 (16) |
O7i—Zn1—N2—C8 | −100.03 (8) | C9—C8—C13—O5 | −178.89 (11) |
C5—N1—C1—C2 | 0.03 (18) | Zn1ii—O7—C14—O8 | −82.76 (15) |
Zn1—N1—C1—C2 | −173.79 (10) | Zn1ii—O7—C14—C11 | 95.54 (12) |
C5—N1—C1—C6 | 178.04 (11) | C10—C11—C14—O7 | 18.00 (17) |
Zn1—N1—C1—C6 | 4.23 (13) | C12—C11—C14—O7 | −158.66 (11) |
N1—C1—C2—C3 | 0.9 (2) | C10—C11—C14—O8 | −163.58 (12) |
C6—C1—C2—C3 | −177.05 (12) | C12—C11—C14—O8 | 19.76 (17) |
C1—C2—C3—C4 | −0.72 (19) | C18—N3—C15—C16 | −56.65 (14) |
C2—C3—C4—C5 | −0.27 (18) | C17—N4—C16—C15 | −56.30 (14) |
C2—C3—C4—C7 | 176.29 (12) | N3—C15—C16—N4 | 55.00 (14) |
C1—N1—C5—C4 | −1.11 (18) | C16—N4—C17—C18 | 56.56 (14) |
Zn1—N1—C5—C4 | 171.29 (9) | C15—N3—C18—C17 | 57.58 (13) |
C3—C4—C5—N1 | 1.24 (18) | N4—C17—C18—N3 | −56.24 (13) |
Symmetry codes: (i) −x, y+1/2, −z+1/2; (ii) −x, y−1/2, −z+1/2. |
D—H···A | D—H | H···A | D···A | D—H···A |
O1W—H1WA···O3iii | 0.82 | 1.93 | 2.730 (1) | 167 |
O1W—H1WB···O2 | 0.82 | 1.86 | 2.678 (2) | 173 |
O2W—H2WA···O1W | 0.82 | 1.87 | 2.682 (1) | 174 |
N3—H3B···O8i | 0.92 | 1.82 | 2.741 (1) | 177 |
N3—H3C···O1 | 0.92 | 2.46 | 2.912 (1) | 111 |
N3—H3C···O5 | 0.92 | 1.94 | 2.818 (1) | 158 |
O2W—H2WB···O5iv | 0.82 | 1.99 | 2.805 (1) | 170 |
N4—H4A···O2Wv | 0.92 | 1.78 | 2.679 (2) | 164 |
N4—H4B···O3vi | 0.92 | 1.79 | 2.714 (1) | 179 |
O9—H9A···O8vii | 0.82 | 1.86 | 2.678 (1) | 173 |
O9—H9B···O4vii | 0.82 | 1.83 | 2.640 (1) | 172 |
Symmetry codes: (i) −x, y+1/2, −z+1/2; (iii) −x, −y, −z; (iv) −x+1, y+1/2, −z+1/2; (v) −x+1, −y, −z+1; (vi) x+1, −y−1/2, z+1/2; (vii) −x, −y−1, −z. |
Experimental details
Crystal data | |
Chemical formula | (C4H12N2)[Zn(C7H3NO4)2(H2O)]·2H2O |
Mr | 537.78 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 100 |
a, b, c (Å) | 13.1752 (5), 11.9066 (5), 13.6902 (5) |
β (°) | 100.567 (1) |
V (Å3) | 2111.19 (14) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 1.24 |
Crystal size (mm) | 0.24 × 0.20 × 0.18 |
Data collection | |
Diffractometer | Bruker APEXII CCD area-detector' |
Absorption correction | Multi-scan (SADABS; Bruker, 2005) |
Tmin, Tmax | 0.756, 0.808 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 26339, 6148, 5458 |
Rint | 0.029 |
(sin θ/λ)max (Å−1) | 0.703 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.025, 0.069, 1.03 |
No. of reflections | 6148 |
No. of parameters | 307 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.83, −0.38 |
Computer programs: APEX2 (Bruker, 2005), SAINT (Bruker, 2005), SHELXS97 (Sheldrick, 1997), SHELXL97 (Sheldrick, 1997), SHELXTL (Bruker, 2005).
D—H···A | D—H | H···A | D···A | D—H···A |
O1W—H1WA···O3i | 0.82 | 1.93 | 2.730 (1) | 167 |
O1W—H1WB···O2 | 0.82 | 1.86 | 2.678 (2) | 173 |
O2W—H2WA···O1W | 0.82 | 1.87 | 2.682 (1) | 174 |
N3—H3B···O8ii | 0.92 | 1.82 | 2.741 (1) | 177 |
N3—H3C···O1 | 0.92 | 2.46 | 2.912 (1) | 111 |
N3—H3C···O5 | 0.92 | 1.94 | 2.818 (1) | 158 |
O2W—H2WB···O5iii | 0.82 | 1.99 | 2.805 (1) | 170 |
N4—H4A···O2Wiv | 0.92 | 1.78 | 2.679 (2) | 164 |
N4—H4B···O3v | 0.92 | 1.79 | 2.714 (1) | 179 |
O9—H9A···O8vi | 0.82 | 1.86 | 2.678 (1) | 173 |
O9—H9B···O4vi | 0.82 | 1.83 | 2.640 (1) | 172 |
Symmetry codes: (i) −x, −y, −z; (ii) −x, y+1/2, −z+1/2; (iii) −x+1, y+1/2, −z+1/2; (iv) −x+1, −y, −z+1; (v) x+1, −y−1/2, z+1/2; (vi) −x, −y−1, −z. |
References
Aghabozorg, H., Attar Gharamaleki, J., Ghadermazi, M., Ghasemikhah, P. & Soleimannejad, J. (2007a). Acta Cryst. E63, m1803–m1804. Web of Science CSD CrossRef IUCr Journals Google Scholar
Aghabozorg, H., Attar Gharamaleki, J., Ghasemikhah, P., Ghadermazi, M. & Soleimannejad, J. (2007b). Acta Cryst. E63, m1710–m1711. Web of Science CSD CrossRef IUCr Journals Google Scholar
Aghabozorg, H., Daneshvar, S., Motyeian, E., Ghadermazi, M. & Attar Gharamaleki, J. (2007). Acta Cryst. E63, m2468–m2469. Web of Science CSD CrossRef IUCr Journals Google Scholar
Bruker (2005). APEX2 (Version 2.0-1), SAINT (Version 7.23A), SADABS (Version 2004/1) and SHELXTL (Version 6.1). Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Sheldrick, G. M. (1997). SHELXS97 and SHELXL97. University of Göttingen, Germany. Google Scholar
Sheshmani, S., Aghabozorg, H. & Ghadermazi, M. (2007). Acta Cryst. E63, o2869. Web of Science CSD CrossRef IUCr Journals Google Scholar
This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.
Our research group has recently focused on one-pot synthesis of water soluble self-assembly systems that can function as suitable ligands in the synthesis of metal complexes (Aghabozorg et al., 2007, 2007a, 2007b).
The molecular structure of the title compound is shown in Fig. 1. The negative charge of the anionic complex is neutralized by dicationic piperazinediium species.
The ZnII atom is hexacoordinated by two nitrogen atoms, two O atoms from carboxylate groups of two (py-2,5-dc)2– fragments, one O atom from a bridging (py-2,5-dc)2– ligand and one O atom from a coordinated water molecule. O7 and O9 atoms occupy the axial positions, while N1, N2, O1 and O5 atoms form the equatorial plane. The O9—Zn1—O7i (i: -x + 1, y - 1/2, -z + 1/2) bond angle revealed ~7.6° deviation from linearity. There are two uncoordinated water molecules and one piperazinediium ion as counter-ion, with some hydrogen bonds to water molecules and coordinated COO- groups of (py-2,5-dc)2– fragments.
The (py-2,5-dc)2– fragments are bridging via carboxylate group, connecting the ZnII atoms together into a layered structure in which the space between the [Zn(H2O)(py-2,5-dc)2]2– species is filled by piperazinediium ions and water molecules (Fig. 2).
The dihedral angle between the aromatic rings of (py-2,5-dc)2– groups connected to the same Zn atom is 6.82 (6)°, indicating that these fragments are almost coparallel.
π-π stacking interactions between two aromatic rings of (py-2,5-dc)2–, with centroid-centroid distances of 3.4747 (7) Å (symmetry code: -x, 1/2 + y, 1/2 - z) and 3.7081 (7) Å (symmetry code: -x, -1 - y, -z) are observed in the title compound (Fig. 3).