metal-organic compounds
Bis(2-amino-6-methylpyridinium) tris(pyridine-2,6-dicarboxylato)zirconate(IV) dihydrate
aDepartment of Chemistry, Islamic Azad University, North Tehran Branch, Tehran, Iran, and bDepartment of Chemistry, Shahid Beheshti University, G. C., Evin, Tehran 1983963113, Iran
*Correspondence e-mail: hodapass@gmail.com
In the title compound, (C6H9N2)2[Zr(C7H3NO4)3]·2H2O, the ZrIV atom is nine-coordinated by three pyridine-2,6-dicarboxylate ligands in a distorted tricapped trigonal–prismatic ZrN3O6 environment. The crystal packing is stabilized by intermolecular N—H⋯O and O—H⋯O hydrogen bonds.
Related literature
For background to proton-transfer compounds, see: Aghabozorg et al. (2008). For related structures, see: Aghabozorg et al. (2005); Daneshvar et al. (2008); Willey et al. (1998); Pasdar et al. (2010, 2011).
Experimental
Crystal data
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Refinement
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Data collection: X-AREA (Stoe & Cie, 2005); cell X-AREA; data reduction: X-AREA; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 1997); software used to prepare material for publication: WinGX (Farrugia, 1999).
Supporting information
10.1107/S1600536811003072/bt5467sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536811003072/bt5467Isup2.hkl
A solution of ZrCl4 (0.114 mg,0.5 mmol) in water (15 ml) was added to an aqueous solution of 2-amino-6-methylpyridine (0.114,1 mmol) and 2,6-pyridinedicarboxylic acid (0.504 mg, 3 mmol) in water (15 ml). Crystals of the title compound suitable for X-ray characterization were obtained after a few weeks at room temperature (m.p: 145 °C).
The hydrogen atoms bonded to N and O were found in difference Fourier map and refined isotropically without restraint. The C—H protons were positioned geometrically and refined as riding atoms with C—H = 0.93 Å and Uiso(H) = 1.2 Ueq(C) for aromatic C—H and C—H = 0.96 Å and Uiso(H) = 1.5 Ueq(C) for methyl groups.
Data collection: X-AREA (Stoe & Cie, 2005); cell
X-AREA (Stoe & Cie, 2005); data reduction: X-AREA (Stoe & Cie, 2005); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 1997); software used to prepare material for publication: WinGX (Farrugia, 1999).Fig. 1. The molecular structure of (2a6mpH)2[Zr(2,6-pydc)3].2H2O with displacement ellipsoids drawn at 30% probability level.Symmetry code: (a) -x + 1, y, -z + 3/2. | |
Fig. 2. The coordination environment around ZrIV ion in the title compound. Symmetry code: (a) -x + 1, y, -z + 3/2. | |
Fig. 3. The packing diagram of (2a6mpH)2[Zr(2,6-pydc)3].2H2O. The intermolecular N—H···O, O—H···O hydrogen bonds are shown as blue dashed lines. |
(C6H9N2)2[Zr(C7H3NO4)3]·2H2O | F(000) = 1720 |
Mr = 840.87 | Dx = 1.591 Mg m−3 |
Monoclinic, C2/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -C 2yc | Cell parameters from 4705 reflections |
a = 18.719 (4) Å | θ = 2.3–29.2° |
b = 10.536 (2) Å | µ = 0.39 mm−1 |
c = 18.781 (4) Å | T = 298 K |
β = 108.58 (3)° | Prism, colorless |
V = 3511.0 (14) Å3 | 0.35 × 0.3 × 0.25 mm |
Z = 4 |
Stoe IPDS II diffractometer | 4705 independent reflections |
Radiation source: fine-focus sealed tube | 4284 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.025 |
Detector resolution: 0.15 mm pixels mm-1 | θmax = 29.2°, θmin = 2.3° |
rotation method scans | h = −25→25 |
Absorption correction: numerical [shape of crystal determined optically (X-SHAPE and X-RED32; Stoe& Cie, 2005)] | k = −12→14 |
Tmin = 0.870, Tmax = 0.903 | l = −25→25 |
12273 measured reflections |
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)] = 0.023 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.060 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.03 | w = 1/[σ2(Fo2) + (0.0339P)2 + 1.0948P] where P = (Fo2 + 2Fc2)/3 |
4705 reflections | (Δ/σ)max = 0.001 |
271 parameters | Δρmax = 0.33 e Å−3 |
0 restraints | Δρmin = −0.27 e Å−3 |
(C6H9N2)2[Zr(C7H3NO4)3]·2H2O | V = 3511.0 (14) Å3 |
Mr = 840.87 | Z = 4 |
Monoclinic, C2/c | Mo Kα radiation |
a = 18.719 (4) Å | µ = 0.39 mm−1 |
b = 10.536 (2) Å | T = 298 K |
c = 18.781 (4) Å | 0.35 × 0.3 × 0.25 mm |
β = 108.58 (3)° |
Stoe IPDS II diffractometer | 4705 independent reflections |
Absorption correction: numerical [shape of crystal determined optically (X-SHAPE and X-RED32; Stoe& Cie, 2005)] | 4284 reflections with I > 2σ(I) |
Tmin = 0.870, Tmax = 0.903 | Rint = 0.025 |
12273 measured reflections |
R[F2 > 2σ(F2)] = 0.023 | 0 restraints |
wR(F2) = 0.060 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.03 | Δρmax = 0.33 e Å−3 |
4705 reflections | Δρmin = −0.27 e Å−3 |
271 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 | ||
C17 | 0.61732 (13) | 0.9817 (2) | 0.98635 (13) | 0.0731 (5) | |
H17A | 0.6130 | 1.0629 | 1.0079 | 0.110* | |
H17B | 0.6397 | 0.9220 | 1.0258 | 0.110* | |
H17C | 0.5681 | 0.9524 | 0.9571 | 0.110* | |
Zr1 | 0.5000 | 0.572850 (14) | 0.7500 | 0.02355 (5) | |
N1 | 0.48851 (5) | 0.45657 (9) | 0.63879 (6) | 0.02849 (19) | |
C5 | 0.53457 (7) | 0.35957 (11) | 0.64083 (7) | 0.0320 (2) | |
C1 | 0.43464 (7) | 0.48587 (12) | 0.57517 (7) | 0.0322 (2) | |
C2 | 0.42369 (9) | 0.41586 (14) | 0.51009 (8) | 0.0426 (3) | |
H2 | 0.3856 | 0.4369 | 0.4661 | 0.051* | |
C4 | 0.52766 (9) | 0.28548 (14) | 0.57799 (8) | 0.0449 (3) | |
H4 | 0.5604 | 0.2182 | 0.5800 | 0.054* | |
C3 | 0.47076 (10) | 0.31419 (15) | 0.51223 (9) | 0.0502 (4) | |
H3 | 0.4643 | 0.2650 | 0.4695 | 0.060* | |
N3 | 0.68745 (7) | 0.88262 (13) | 0.91339 (7) | 0.0443 (3) | |
N4 | 0.74780 (9) | 0.76062 (17) | 0.84880 (10) | 0.0600 (4) | |
C12 | 0.73020 (8) | 0.87419 (17) | 0.86785 (9) | 0.0468 (3) | |
C16 | 0.66558 (9) | 0.99384 (17) | 0.93708 (10) | 0.0539 (4) | |
C13 | 0.75373 (9) | 0.98893 (19) | 0.84391 (10) | 0.0580 (4) | |
H13 | 0.7833 | 0.9879 | 0.8124 | 0.070* | |
C15 | 0.68835 (12) | 1.10440 (19) | 0.91395 (13) | 0.0694 (5) | |
H15 | 0.6743 | 1.1819 | 0.9292 | 0.083* | |
C14 | 0.73318 (11) | 1.10031 (19) | 0.86693 (12) | 0.0675 (5) | |
H14 | 0.7491 | 1.1759 | 0.8513 | 0.081* | |
O1 | 0.40841 (5) | 0.64343 (9) | 0.65095 (5) | 0.03362 (18) | |
O2 | 0.34539 (6) | 0.65095 (11) | 0.52861 (6) | 0.0505 (3) | |
C6 | 0.39137 (7) | 0.60152 (12) | 0.58346 (7) | 0.0333 (2) | |
N2 | 0.5000 | 0.79516 (13) | 0.7500 | 0.0288 (3) | |
O5 | 0.42116 (5) | 0.65285 (9) | 0.80434 (5) | 0.03414 (18) | |
C8 | 0.45374 (7) | 0.85771 (12) | 0.77872 (7) | 0.0326 (2) | |
C11 | 0.40782 (7) | 0.77095 (12) | 0.81082 (7) | 0.0332 (2) | |
O6 | 0.36459 (7) | 0.81504 (11) | 0.84149 (7) | 0.0520 (3) | |
C9 | 0.45124 (9) | 0.98904 (14) | 0.77885 (10) | 0.0483 (3) | |
H9 | 0.4178 | 1.0321 | 0.7977 | 0.058* | |
C10 | 0.5000 | 1.0542 (2) | 0.7500 | 0.0603 (7) | |
H10 | 0.5000 | 1.1425 | 0.7500 | 0.072* | |
O4 | 0.64121 (6) | 0.25978 (10) | 0.72642 (6) | 0.0482 (2) | |
C7 | 0.59251 (7) | 0.34202 (12) | 0.71639 (7) | 0.0324 (2) | |
O3 | 0.58564 (5) | 0.41882 (9) | 0.76672 (5) | 0.03380 (18) | |
O7 | 0.74136 (9) | 0.47442 (18) | 0.85925 (12) | 0.0865 (6) | |
H3A | 0.6742 (11) | 0.810 (2) | 0.9320 (12) | 0.064 (6)* | |
H4B | 0.7294 (12) | 0.690 (2) | 0.8587 (12) | 0.066 (6)* | |
H4A | 0.7747 (12) | 0.755 (2) | 0.8218 (12) | 0.068 (6)* | |
H7A | 0.7728 (18) | 0.425 (3) | 0.8528 (17) | 0.105 (10)* | |
H7B | 0.6993 (19) | 0.445 (3) | 0.8293 (19) | 0.121 (12)* |
U11 | U22 | U33 | U12 | U13 | U23 | |
C17 | 0.0748 (13) | 0.0714 (13) | 0.0801 (14) | 0.0028 (11) | 0.0344 (11) | −0.0088 (11) |
Zr1 | 0.02282 (7) | 0.02414 (7) | 0.02305 (8) | 0.000 | 0.00640 (5) | 0.000 |
N1 | 0.0303 (4) | 0.0279 (4) | 0.0274 (5) | −0.0010 (3) | 0.0094 (4) | −0.0011 (4) |
C5 | 0.0370 (6) | 0.0285 (5) | 0.0338 (6) | 0.0001 (4) | 0.0158 (5) | −0.0007 (5) |
C1 | 0.0338 (5) | 0.0335 (6) | 0.0279 (6) | −0.0029 (5) | 0.0080 (4) | −0.0008 (5) |
C2 | 0.0499 (7) | 0.0455 (7) | 0.0289 (6) | −0.0053 (6) | 0.0077 (5) | −0.0046 (6) |
C4 | 0.0597 (8) | 0.0364 (7) | 0.0426 (7) | 0.0051 (6) | 0.0222 (7) | −0.0067 (6) |
C3 | 0.0703 (10) | 0.0455 (8) | 0.0366 (7) | −0.0022 (7) | 0.0196 (7) | −0.0127 (6) |
N3 | 0.0399 (6) | 0.0458 (6) | 0.0432 (7) | −0.0095 (5) | 0.0077 (5) | 0.0018 (5) |
N4 | 0.0627 (9) | 0.0603 (9) | 0.0665 (10) | −0.0172 (7) | 0.0342 (8) | −0.0101 (8) |
C12 | 0.0372 (6) | 0.0571 (9) | 0.0406 (7) | −0.0126 (6) | 0.0048 (6) | 0.0019 (7) |
C16 | 0.0480 (8) | 0.0519 (9) | 0.0550 (9) | −0.0017 (7) | 0.0069 (7) | −0.0012 (8) |
C13 | 0.0472 (8) | 0.0668 (11) | 0.0538 (10) | −0.0144 (8) | 0.0073 (7) | 0.0165 (8) |
C15 | 0.0661 (11) | 0.0478 (9) | 0.0845 (14) | 0.0016 (8) | 0.0102 (10) | 0.0063 (9) |
C14 | 0.0571 (10) | 0.0577 (11) | 0.0746 (13) | −0.0119 (8) | 0.0026 (9) | 0.0254 (9) |
O1 | 0.0330 (4) | 0.0357 (4) | 0.0283 (4) | 0.0059 (3) | 0.0044 (3) | −0.0009 (3) |
O2 | 0.0530 (6) | 0.0550 (6) | 0.0322 (5) | 0.0155 (5) | −0.0024 (4) | 0.0022 (5) |
C6 | 0.0307 (5) | 0.0356 (6) | 0.0296 (6) | 0.0004 (4) | 0.0041 (4) | 0.0018 (5) |
N2 | 0.0306 (6) | 0.0285 (6) | 0.0260 (6) | 0.000 | 0.0072 (5) | 0.000 |
O5 | 0.0361 (4) | 0.0330 (4) | 0.0374 (5) | 0.0024 (3) | 0.0174 (4) | 0.0019 (4) |
C8 | 0.0353 (6) | 0.0304 (6) | 0.0308 (6) | 0.0035 (5) | 0.0089 (5) | −0.0012 (5) |
C11 | 0.0331 (5) | 0.0368 (6) | 0.0306 (6) | 0.0051 (5) | 0.0112 (5) | 0.0002 (5) |
O6 | 0.0572 (6) | 0.0494 (6) | 0.0625 (7) | 0.0113 (5) | 0.0375 (6) | −0.0011 (5) |
C9 | 0.0575 (8) | 0.0322 (6) | 0.0612 (10) | 0.0056 (6) | 0.0273 (8) | −0.0039 (6) |
C10 | 0.0776 (16) | 0.0267 (9) | 0.0865 (19) | 0.000 | 0.0399 (15) | 0.000 |
O4 | 0.0482 (5) | 0.0431 (5) | 0.0556 (6) | 0.0190 (4) | 0.0197 (5) | 0.0058 (5) |
C7 | 0.0320 (5) | 0.0292 (5) | 0.0389 (6) | 0.0022 (4) | 0.0154 (5) | 0.0037 (5) |
O3 | 0.0314 (4) | 0.0355 (4) | 0.0324 (4) | 0.0060 (3) | 0.0072 (3) | 0.0000 (4) |
O7 | 0.0527 (8) | 0.0816 (11) | 0.1081 (13) | 0.0094 (8) | 0.0016 (8) | −0.0399 (10) |
C17—C16 | 1.491 (3) | N4—C12 | 1.320 (2) |
C17—H17A | 0.9600 | N4—H4B | 0.86 (2) |
C17—H17B | 0.9600 | N4—H4A | 0.82 (2) |
C17—H17C | 0.9600 | C12—C13 | 1.409 (2) |
Zr1—O5 | 2.2113 (9) | C16—C15 | 1.358 (3) |
Zr1—O5i | 2.2113 (9) | C13—C14 | 1.348 (3) |
Zr1—O1i | 2.2183 (11) | C13—H13 | 0.9300 |
Zr1—O1 | 2.2183 (11) | C15—C14 | 1.399 (3) |
Zr1—O3i | 2.2320 (9) | C15—H15 | 0.9300 |
Zr1—O3 | 2.2320 (9) | C14—H14 | 0.9300 |
Zr1—N2 | 2.3422 (15) | O1—C6 | 1.2828 (15) |
Zr1—N1 | 2.3713 (10) | O2—C6 | 1.2280 (16) |
Zr1—N1i | 2.3713 (11) | N2—C8 | 1.3314 (14) |
N1—C5 | 1.3297 (15) | N2—C8i | 1.3314 (14) |
N1—C1 | 1.3313 (16) | O5—C11 | 1.2824 (16) |
C5—C4 | 1.3863 (18) | C8—C9 | 1.3845 (19) |
C5—C7 | 1.4979 (19) | C8—C11 | 1.5062 (18) |
C1—C2 | 1.3857 (18) | C11—O6 | 1.2246 (15) |
C1—C6 | 1.4986 (18) | C9—C10 | 1.3834 (19) |
C2—C3 | 1.379 (2) | C9—H9 | 0.9300 |
C2—H2 | 0.9300 | C10—C9i | 1.3834 (19) |
C4—C3 | 1.383 (2) | C10—H10 | 0.9300 |
C4—H4 | 0.9300 | O4—C7 | 1.2279 (15) |
C3—H3 | 0.9300 | C7—O3 | 1.2814 (15) |
N3—C12 | 1.348 (2) | O7—H7A | 0.82 (3) |
N3—C16 | 1.362 (2) | O7—H7B | 0.87 (4) |
N3—H3A | 0.91 (2) | ||
C16—C17—H17A | 109.5 | C1—C2—H2 | 120.9 |
C16—C17—H17B | 109.5 | C3—C4—C5 | 118.26 (13) |
H17A—C17—H17B | 109.5 | C3—C4—H4 | 120.9 |
C16—C17—H17C | 109.5 | C5—C4—H4 | 120.9 |
H17A—C17—H17C | 109.5 | C2—C3—C4 | 119.92 (13) |
H17B—C17—H17C | 109.5 | C2—C3—H3 | 120.0 |
O5—Zr1—O5i | 135.19 (5) | C4—C3—H3 | 120.0 |
O5—Zr1—O1i | 86.35 (4) | C12—N3—C16 | 124.41 (15) |
O5i—Zr1—O1i | 78.94 (4) | C12—N3—H3A | 118.6 (13) |
O5—Zr1—O1 | 78.94 (4) | C16—N3—H3A | 116.9 (13) |
O5i—Zr1—O1 | 86.35 (4) | C12—N4—H4B | 124.6 (14) |
O1i—Zr1—O1 | 140.83 (5) | C12—N4—H4A | 118.8 (16) |
O5—Zr1—O3i | 77.70 (4) | H4B—N4—H4A | 116 (2) |
O5i—Zr1—O3i | 140.11 (3) | N4—C12—N3 | 118.80 (15) |
O1i—Zr1—O3i | 133.65 (3) | N4—C12—C13 | 124.11 (16) |
O1—Zr1—O3i | 78.30 (4) | N3—C12—C13 | 117.09 (17) |
O5—Zr1—O3 | 140.11 (3) | C15—C16—N3 | 118.41 (18) |
O5i—Zr1—O3 | 77.70 (4) | C15—C16—C17 | 125.88 (19) |
O1i—Zr1—O3 | 78.30 (4) | N3—C16—C17 | 115.71 (16) |
O1—Zr1—O3 | 133.65 (3) | C14—C13—C12 | 119.64 (17) |
O3i—Zr1—O3 | 86.71 (5) | C14—C13—H13 | 120.2 |
O5—Zr1—N2 | 67.59 (2) | C12—C13—H13 | 120.2 |
O5i—Zr1—N2 | 67.59 (2) | C16—C15—C14 | 119.2 (2) |
O1i—Zr1—N2 | 70.41 (3) | C16—C15—H15 | 120.4 |
O1—Zr1—N2 | 70.41 (3) | C14—C15—H15 | 120.4 |
O3i—Zr1—N2 | 136.64 (2) | C13—C14—C15 | 121.26 (17) |
O3—Zr1—N2 | 136.64 (2) | C13—C14—H14 | 119.4 |
O5—Zr1—N1 | 135.80 (4) | C15—C14—H14 | 119.4 |
O5i—Zr1—N1 | 71.15 (4) | C6—O1—Zr1 | 126.56 (8) |
O1i—Zr1—N1 | 137.80 (3) | O2—C6—O1 | 124.76 (12) |
O1—Zr1—N1 | 66.77 (4) | O2—C6—C1 | 121.01 (12) |
O3i—Zr1—N1 | 68.96 (4) | O1—C6—C1 | 114.21 (11) |
O3—Zr1—N1 | 66.91 (4) | C8—N2—C8i | 120.65 (15) |
N2—Zr1—N1 | 121.11 (2) | C8—N2—Zr1 | 119.67 (8) |
O5—Zr1—N1i | 71.15 (4) | C8i—N2—Zr1 | 119.67 (8) |
O5i—Zr1—N1i | 135.80 (4) | C11—O5—Zr1 | 126.32 (8) |
O1i—Zr1—N1i | 66.77 (4) | N2—C8—C9 | 121.48 (12) |
O1—Zr1—N1i | 137.80 (3) | N2—C8—C11 | 112.92 (11) |
O3i—Zr1—N1i | 66.91 (4) | C9—C8—C11 | 125.59 (11) |
O3—Zr1—N1i | 68.96 (4) | O6—C11—O5 | 126.19 (12) |
N2—Zr1—N1i | 121.11 (3) | O6—C11—C8 | 120.34 (12) |
N1—Zr1—N1i | 117.79 (5) | O5—C11—C8 | 113.43 (10) |
C5—N1—C1 | 120.19 (11) | C10—C9—C8 | 117.95 (14) |
C5—N1—Zr1 | 119.72 (8) | C10—C9—H9 | 121.0 |
C1—N1—Zr1 | 120.07 (8) | C8—C9—H9 | 121.0 |
N1—C5—C4 | 121.64 (13) | C9—C10—C9i | 120.45 (19) |
N1—C5—C7 | 112.91 (10) | C9—C10—H10 | 119.8 |
C4—C5—C7 | 125.46 (12) | C9i—C10—H10 | 119.8 |
N1—C1—C2 | 121.68 (12) | O4—C7—O3 | 125.20 (13) |
N1—C1—C6 | 112.04 (10) | O4—C7—C5 | 120.70 (12) |
C2—C1—C6 | 126.27 (12) | O3—C7—C5 | 114.10 (10) |
C3—C2—C1 | 118.30 (14) | C7—O3—Zr1 | 126.28 (8) |
C3—C2—H2 | 120.9 | H7A—O7—H7B | 103 (3) |
O5—Zr1—N1—C5 | −137.47 (8) | C2—C1—C6—O1 | 174.88 (12) |
O5i—Zr1—N1—C5 | 86.13 (9) | O5—Zr1—N2—C8 | −2.02 (7) |
O1i—Zr1—N1—C5 | 38.83 (11) | O5i—Zr1—N2—C8 | 177.98 (7) |
O1—Zr1—N1—C5 | −179.67 (9) | O1i—Zr1—N2—C8 | −96.24 (7) |
O3i—Zr1—N1—C5 | −93.76 (9) | O1—Zr1—N2—C8 | 83.76 (7) |
O3—Zr1—N1—C5 | 1.82 (8) | O3i—Zr1—N2—C8 | 37.42 (7) |
N2—Zr1—N1—C5 | 133.57 (8) | O3—Zr1—N2—C8 | −142.58 (7) |
N1i—Zr1—N1—C5 | −46.43 (8) | N1—Zr1—N2—C8 | 129.04 (7) |
O5—Zr1—N1—C1 | 40.43 (11) | N1i—Zr1—N2—C8 | −50.96 (7) |
O5i—Zr1—N1—C1 | −95.97 (9) | O5—Zr1—N2—C8i | 177.98 (7) |
O1i—Zr1—N1—C1 | −143.27 (8) | O5i—Zr1—N2—C8i | −2.02 (7) |
O1—Zr1—N1—C1 | −1.77 (8) | O1i—Zr1—N2—C8i | 83.76 (7) |
O3i—Zr1—N1—C1 | 84.14 (9) | O1—Zr1—N2—C8i | −96.24 (7) |
O3—Zr1—N1—C1 | 179.72 (10) | O3i—Zr1—N2—C8i | −142.58 (7) |
N2—Zr1—N1—C1 | −48.53 (9) | O3—Zr1—N2—C8i | 37.42 (7) |
N1i—Zr1—N1—C1 | 131.47 (9) | N1—Zr1—N2—C8i | −50.96 (7) |
C1—N1—C5—C4 | −0.84 (18) | N1i—Zr1—N2—C8i | 129.04 (7) |
Zr1—N1—C5—C4 | 177.05 (10) | O5i—Zr1—O5—C11 | 1.94 (9) |
C1—N1—C5—C7 | 178.88 (10) | O1i—Zr1—O5—C11 | 72.24 (10) |
Zr1—N1—C5—C7 | −3.22 (13) | O1—Zr1—O5—C11 | −71.27 (10) |
C5—N1—C1—C2 | 1.35 (18) | O3i—Zr1—O5—C11 | −151.55 (11) |
Zr1—N1—C1—C2 | −176.54 (10) | O3—Zr1—O5—C11 | 139.09 (10) |
C5—N1—C1—C6 | −177.21 (10) | N2—Zr1—O5—C11 | 1.94 (9) |
Zr1—N1—C1—C6 | 4.90 (13) | N1—Zr1—O5—C11 | −110.25 (10) |
N1—C1—C2—C3 | −0.5 (2) | N1i—Zr1—O5—C11 | 138.93 (11) |
C6—C1—C2—C3 | 177.80 (13) | C8i—N2—C8—C9 | 0.92 (11) |
N1—C5—C4—C3 | −0.4 (2) | Zr1—N2—C8—C9 | −179.08 (11) |
C7—C5—C4—C3 | 179.87 (13) | C8i—N2—C8—C11 | −178.02 (11) |
C1—C2—C3—C4 | −0.8 (2) | Zr1—N2—C8—C11 | 1.98 (11) |
C5—C4—C3—C2 | 1.2 (2) | Zr1—O5—C11—O6 | −179.35 (11) |
C16—N3—C12—N4 | 179.94 (16) | Zr1—O5—C11—C8 | −1.59 (15) |
C16—N3—C12—C13 | 0.3 (2) | N2—C8—C11—O6 | 177.52 (11) |
C12—N3—C16—C15 | −0.3 (2) | C9—C8—C11—O6 | −1.4 (2) |
C12—N3—C16—C17 | 179.07 (16) | N2—C8—C11—O5 | −0.38 (15) |
N4—C12—C13—C14 | −179.53 (18) | C9—C8—C11—O5 | −179.28 (14) |
N3—C12—C13—C14 | 0.1 (2) | N2—C8—C9—C10 | −1.8 (2) |
N3—C16—C15—C14 | 0.0 (3) | C11—C8—C9—C10 | 177.02 (11) |
C17—C16—C15—C14 | −179.37 (19) | C8—C9—C10—C9i | 0.86 (10) |
C12—C13—C14—C15 | −0.4 (3) | N1—C5—C7—O4 | −176.83 (11) |
C16—C15—C14—C13 | 0.4 (3) | C4—C5—C7—O4 | 2.9 (2) |
O5—Zr1—O1—C6 | −154.09 (10) | N1—C5—C7—O3 | 3.20 (15) |
O5i—Zr1—O1—C6 | 68.45 (10) | C4—C5—C7—O3 | −177.09 (12) |
O1i—Zr1—O1—C6 | 135.95 (10) | O4—C7—O3—Zr1 | 178.19 (10) |
O3i—Zr1—O1—C6 | −74.53 (10) | C5—C7—O3—Zr1 | −1.84 (14) |
O3—Zr1—O1—C6 | −0.71 (12) | O5—Zr1—O3—C7 | 135.01 (9) |
N2—Zr1—O1—C6 | 135.95 (10) | O5i—Zr1—O3—C7 | −74.37 (10) |
N1—Zr1—O1—C6 | −2.60 (9) | O1i—Zr1—O3—C7 | −155.43 (10) |
N1i—Zr1—O1—C6 | −108.97 (10) | O1—Zr1—O3—C7 | −1.71 (12) |
Zr1—O1—C6—O2 | −172.23 (10) | O3i—Zr1—O3—C7 | 68.68 (9) |
Zr1—O1—C6—C1 | 5.94 (15) | N2—Zr1—O3—C7 | −111.32 (9) |
N1—C1—C6—O2 | 171.61 (12) | N1—Zr1—O3—C7 | 0.18 (9) |
C2—C1—C6—O2 | −6.9 (2) | N1i—Zr1—O3—C7 | 135.18 (10) |
N1—C1—C6—O1 | −6.64 (15) |
Symmetry code: (i) −x+1, y, −z+3/2. |
D—H···A | D—H | H···A | D···A | D—H···A |
O7—H7B···O3 | 0.87 (4) | 2.09 (4) | 2.938 (2) | 164 (3) |
O7—H7A···O6ii | 0.82 (3) | 2.14 (3) | 2.9568 (19) | 173 (3) |
N4—H4B···O1i | 0.86 (2) | 2.57 (2) | 3.1755 (18) | 127.6 (17) |
N4—H4B···O7 | 0.86 (2) | 2.28 (2) | 3.027 (3) | 144.1 (18) |
N4—H4A···O4iii | 0.82 (2) | 2.05 (2) | 2.861 (2) | 168 (2) |
N3—H3A···O2i | 0.91 (2) | 1.91 (2) | 2.8194 (18) | 175.1 (18) |
Symmetry codes: (i) −x+1, y, −z+3/2; (ii) x+1/2, y−1/2, z; (iii) −x+3/2, y+1/2, −z+3/2. |
Experimental details
Crystal data | |
Chemical formula | (C6H9N2)2[Zr(C7H3NO4)3]·2H2O |
Mr | 840.87 |
Crystal system, space group | Monoclinic, C2/c |
Temperature (K) | 298 |
a, b, c (Å) | 18.719 (4), 10.536 (2), 18.781 (4) |
β (°) | 108.58 (3) |
V (Å3) | 3511.0 (14) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.39 |
Crystal size (mm) | 0.35 × 0.3 × 0.25 |
Data collection | |
Diffractometer | Stoe IPDS II diffractometer |
Absorption correction | Numerical [shape of crystal determined optically (X-SHAPE and X-RED32; Stoe& Cie, 2005)] |
Tmin, Tmax | 0.870, 0.903 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 12273, 4705, 4284 |
Rint | 0.025 |
(sin θ/λ)max (Å−1) | 0.687 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.023, 0.060, 1.03 |
No. of reflections | 4705 |
No. of parameters | 271 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.33, −0.27 |
Computer programs: X-AREA (Stoe & Cie, 2005), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), ORTEP-3 for Windows (Farrugia, 1997), WinGX (Farrugia, 1999).
D—H···A | D—H | H···A | D···A | D—H···A |
O7—H7B···O3 | 0.87 (4) | 2.09 (4) | 2.938 (2) | 164 (3) |
O7—H7A···O6i | 0.82 (3) | 2.14 (3) | 2.9568 (19) | 173 (3) |
N4—H4B···O1ii | 0.86 (2) | 2.57 (2) | 3.1755 (18) | 127.6 (17) |
N4—H4B···O7 | 0.86 (2) | 2.28 (2) | 3.027 (3) | 144.1 (18) |
N4—H4A···O4iii | 0.82 (2) | 2.05 (2) | 2.861 (2) | 168 (2) |
N3—H3A···O2ii | 0.91 (2) | 1.91 (2) | 2.8194 (18) | 175.1 (18) |
Symmetry codes: (i) x+1/2, y−1/2, z; (ii) −x+1, y, −z+3/2; (iii) −x+3/2, y+1/2, −z+3/2. |
Acknowledgements
We are grateful to the Islamic Azad University, North Tehran Branch, for financial support.
References
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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.
Pyridine-2,6-dicarboxylic acid (pydcH2) was commonly used as an acid in proton transfer systems (Aghabozorg et al., 2008). Continuing the path to synthesize proton transfer compounds, our group has focused on forming ion pairs between 2,6-pydcH2 and various organic bases (Pasdar et al., 2010; Pasdar et al., 2011). The structures of two proton transfer compounds containing [ZrIV(2,6-pydc)3]2- moiety were reported with the counter cationic part of 2,6-pyridinediamine (Aghabozorg et al., 2005) and 2,4,6-triamino-1,3,5-triazine (Daneshvar et al., 2008), respectively. The structure of K4[ZrIV(2,6-pydc)3]2 has been reported by Willey et al. (1998).
We report herein the synthesis and crystal structure of (2a6mpH)2[Zr(2,6-pydc)3].2H2O by the reaction of ZrCl4, 2-amino-6-methylpyridine and 2,6-pyridinedicarboxylic acid in aqueous media. The molecular structure of the title compound is shown in Fig.1. The zirconium(IV) ion is coordinated by three pydc2- ligands in a distorted tricapped trigonal prismatic geometry. The geometry around the zirconium(IV) centre in the title compound is shown in Fig. 2. The Zr—N and Zr—O bond lengths and angles are comprable with those previously reported (Aghabozorg et al., 2005; Daneshvar et al., 2008). The crystal packing diagram of (2a6mpH)2[Zr(2,6-pydc)3].2H2O is presented in Fig. 3. There are several intermolecular N—H···O, O—H···O hydrogen bonds which stabilize crystal structure of the compound (Table 1 and Fig. 3).