organic compounds
4-(1H-Pyrazol-3-yl)pyridine–terephthalic acid–water (2/1/2)
aCollege of Chemistry and Chemical Engineering, Hunan Institute of Engineering, Xiang Tan 411104, People's Republic of China, and bThe People's Hospital of Xiangtan County, Xiang Tan 411104, People's Republic of China
*Correspondence e-mail: tzd0517@163.com
In the title compound, 2C8H7N3·C8H6O4·2H2O, the pyridine and pyrazole rings are approximately coplanar, the dihedral angle between them being 4.69 (9)°. The consists of half of the terephthalic acid (an inversion centre generates the other half of the molecule), one 4-(1H-pyrazol-3-yl)pyridine (4pp) molecule and one water molecule. In the crystal, two 4pp and one terephthalic acid molecules form a linear three-molecule unit as a result of O—H⋯N hydrogen bonds. These units are further assembled into a three-dimensional network by two types of hydrogen bonds, viz. O—H⋯O and N—H⋯O.
Experimental
Crystal data
|
Refinement
|
Data collection: PROCESS-AUTO (Rigaku, 1998); cell PROCESS-AUTO; data reduction: PROCESS-AUTO; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: DIAMOND (Brandenburg & Putz, 2005); software used to prepare material for publication: SHELXL97.
Supporting information
10.1107/S1600536812021599/nk2153sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536812021599/nk2153Isup2.hkl
4-(1H-pyrazol-3-yl)-pyridine was prepared according to the published method of Davies et al. (2003). An aqueous solution (20 mL) containing terephthalic acid( 0.1 mmol,16 mg), NaOH (0.2 mmol,8 mg) and 4-(1H-pyrazol-3-yl)-pyridine (0.2 mmol,29 mg) was stirred for 20 minutes in air, and left to stand at room temperature for about four weeks, then the colorless crystals were obtained.
C- and N- bound H atoms were placed at calculated positions and were treated as riding on the parent C or N atoms with C—H = 0.93 Å, N—H = 0.86 Å, and with Uiso(H) = 1.2 Ueq(C, N). The water H-atoms were located in a difference map, and were refined with a distance restraint of O—H = 0.84 Å; their Uiso values were refined.
Data collection: PROCESS-AUTO (Rigaku, 1998); cell
PROCESS-AUTO (Rigaku, 1998); data reduction: PROCESS-AUTO (Rigaku, 1998); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: DIAMOND (Brandenburg & Putz, 2005); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008).2C8H7N3·C8H6O4·2H2O | Z = 1 |
Mr = 492.49 | F(000) = 258 |
Triclinic, P1 | Dx = 1.423 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 6.8364 (14) Å | Cell parameters from 4645 reflections |
b = 9.5308 (19) Å | θ = 3.2–27.5° |
c = 10.131 (2) Å | µ = 0.11 mm−1 |
α = 67.52 (3)° | T = 293 K |
β = 71.22 (3)° | Block, colourless |
γ = 78.10 (3)° | 0.32 × 0.25 × 0.18 mm |
V = 574.9 (2) Å3 |
Rigaku SCXmini diffractometer | 2024 independent reflections |
Radiation source: sealed tube | 1254 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.054 |
ω scans | θmax = 25.0°, θmin = 3.2° |
Absorption correction: multi-scan (ABSCOR; Higashi, 1995) | h = −8→8 |
Tmin = 0.967, Tmax = 0.981 | k = −11→11 |
5041 measured reflections | l = −12→12 |
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)] = 0.064 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.128 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.21 | w = 1/[σ2(Fo2) + (0.0423P)2] where P = (Fo2 + 2Fc2)/3 |
2024 reflections | (Δ/σ)max = 0.002 |
172 parameters | Δρmax = 0.32 e Å−3 |
4 restraints | Δρmin = −0.28 e Å−3 |
2C8H7N3·C8H6O4·2H2O | γ = 78.10 (3)° |
Mr = 492.49 | V = 574.9 (2) Å3 |
Triclinic, P1 | Z = 1 |
a = 6.8364 (14) Å | Mo Kα radiation |
b = 9.5308 (19) Å | µ = 0.11 mm−1 |
c = 10.131 (2) Å | T = 293 K |
α = 67.52 (3)° | 0.32 × 0.25 × 0.18 mm |
β = 71.22 (3)° |
Rigaku SCXmini diffractometer | 2024 independent reflections |
Absorption correction: multi-scan (ABSCOR; Higashi, 1995) | 1254 reflections with I > 2σ(I) |
Tmin = 0.967, Tmax = 0.981 | Rint = 0.054 |
5041 measured reflections |
R[F2 > 2σ(F2)] = 0.064 | 4 restraints |
wR(F2) = 0.128 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.21 | Δρmax = 0.32 e Å−3 |
2024 reflections | Δρmin = −0.28 e Å−3 |
172 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 | ||
C1 | 1.0188 (4) | 0.3344 (3) | 0.3605 (3) | 0.0315 (7) | |
H1W | 0.422 (4) | 0.7787 (14) | 0.275 (3) | 0.047* | |
N1 | 1.2378 (3) | 0.4525 (3) | 0.3732 (3) | 0.0425 (7) | |
H1 | 1.3209 | 0.5197 | 0.3507 | 0.051* | |
O1 | 0.3502 (3) | 0.2110 (2) | 0.0458 (2) | 0.0473 (6) | |
O1W | 0.4882 (3) | 0.6952 (2) | 0.2700 (2) | 0.0513 (6) | |
C2 | 1.0696 (4) | 0.2524 (3) | 0.4943 (3) | 0.0420 (8) | |
H2 | 1.0189 | 0.1622 | 0.5651 | 0.050* | |
H2W | 0.553 (4) | 0.702 (3) | 0.1821 (10) | 0.063* | |
N2 | 1.1240 (4) | 0.4575 (3) | 0.2854 (2) | 0.0400 (7) | |
O2 | 0.3105 (3) | −0.0044 (2) | 0.2397 (2) | 0.0475 (6) | |
C3 | 1.2093 (5) | 0.3327 (4) | 0.4991 (3) | 0.0444 (8) | |
H3 | 1.2723 | 0.3089 | 0.5749 | 0.053* | |
N3 | 0.6010 (3) | 0.2457 (3) | 0.1765 (3) | 0.0396 (6) | |
C4 | 0.6356 (4) | 0.1461 (3) | 0.3035 (3) | 0.0449 (8) | |
H4 | 0.5675 | 0.0577 | 0.3498 | 0.054* | |
C5 | 0.7685 (4) | 0.1702 (3) | 0.3678 (3) | 0.0418 (8) | |
H5 | 0.7896 | 0.0987 | 0.4563 | 0.050* | |
C6 | 0.8716 (4) | 0.3018 (3) | 0.3005 (3) | 0.0311 (7) | |
C7 | 0.8296 (4) | 0.4054 (3) | 0.1688 (3) | 0.0421 (8) | |
H7 | 0.8919 | 0.4962 | 0.1210 | 0.050* | |
C8 | 0.6973 (4) | 0.3730 (3) | 0.1105 (3) | 0.0451 (8) | |
H8 | 0.6734 | 0.4420 | 0.0218 | 0.054* | |
C9 | 0.1342 (4) | 0.0404 (3) | 0.0568 (3) | 0.0303 (7) | |
C10 | 0.0548 (4) | 0.1468 (3) | −0.0570 (3) | 0.0362 (7) | |
H10 | 0.0913 | 0.2463 | −0.0964 | 0.043* | |
C11 | 0.2749 (4) | 0.0835 (3) | 0.1202 (3) | 0.0365 (7) | |
H11 | 0.427 (3) | 0.212 (3) | 0.093 (2) | 0.044* | |
C12 | 0.0774 (4) | −0.1067 (3) | 0.1123 (3) | 0.0368 (7) | |
H12 | 0.1291 | −0.1799 | 0.1882 | 0.044* |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0348 (17) | 0.0340 (17) | 0.0324 (17) | −0.0076 (14) | −0.0138 (14) | −0.0124 (15) |
N1 | 0.0410 (16) | 0.0508 (17) | 0.0497 (17) | −0.0133 (12) | −0.0191 (13) | −0.0218 (15) |
O1 | 0.0540 (14) | 0.0522 (14) | 0.0513 (14) | −0.0250 (11) | −0.0301 (11) | −0.0111 (12) |
O1W | 0.0522 (16) | 0.0496 (14) | 0.0540 (14) | −0.0137 (11) | −0.0216 (12) | −0.0092 (12) |
C2 | 0.0446 (19) | 0.0435 (19) | 0.0449 (19) | −0.0102 (15) | −0.0174 (16) | −0.0152 (16) |
N2 | 0.0418 (15) | 0.0459 (16) | 0.0419 (15) | −0.0168 (12) | −0.0179 (12) | −0.0134 (13) |
O2 | 0.0631 (15) | 0.0476 (14) | 0.0426 (13) | −0.0174 (11) | −0.0317 (12) | −0.0065 (12) |
C3 | 0.050 (2) | 0.050 (2) | 0.043 (2) | −0.0045 (16) | −0.0243 (16) | −0.0161 (18) |
N3 | 0.0368 (15) | 0.0468 (16) | 0.0402 (16) | −0.0107 (12) | −0.0117 (12) | −0.0156 (14) |
C4 | 0.045 (2) | 0.049 (2) | 0.048 (2) | −0.0232 (16) | −0.0101 (16) | −0.0169 (18) |
C5 | 0.0507 (19) | 0.0396 (18) | 0.0389 (18) | −0.0182 (15) | −0.0195 (15) | −0.0043 (15) |
C6 | 0.0322 (17) | 0.0341 (17) | 0.0327 (17) | −0.0028 (14) | −0.0119 (14) | −0.0149 (15) |
C7 | 0.0468 (19) | 0.0375 (18) | 0.048 (2) | −0.0141 (14) | −0.0211 (16) | −0.0090 (16) |
C8 | 0.049 (2) | 0.048 (2) | 0.0427 (19) | −0.0108 (17) | −0.0227 (16) | −0.0090 (17) |
C9 | 0.0263 (16) | 0.0353 (18) | 0.0329 (16) | −0.0078 (13) | −0.0074 (13) | −0.0134 (15) |
C10 | 0.0382 (18) | 0.0311 (16) | 0.0435 (18) | −0.0124 (14) | −0.0149 (15) | −0.0094 (15) |
C11 | 0.0349 (17) | 0.0402 (19) | 0.0439 (19) | −0.0119 (15) | −0.0123 (15) | −0.0190 (17) |
C12 | 0.0381 (18) | 0.0401 (18) | 0.0364 (17) | −0.0093 (14) | −0.0177 (14) | −0.0081 (15) |
C1—N2 | 1.336 (3) | C4—C5 | 1.373 (4) |
C1—C2 | 1.397 (4) | C4—H4 | 0.9300 |
C1—C6 | 1.465 (3) | C5—C6 | 1.391 (3) |
N1—C3 | 1.337 (3) | C5—H5 | 0.9300 |
N1—N2 | 1.340 (3) | C6—C7 | 1.400 (4) |
N1—H1 | 0.8600 | C7—C8 | 1.364 (4) |
O1—C11 | 1.272 (3) | C7—H7 | 0.9300 |
O1—H11 | 0.8202 (11) | C8—H8 | 0.9300 |
O1W—H1W | 0.8400 (11) | C9—C12 | 1.383 (3) |
O1W—H2W | 0.8400 (11) | C9—C10 | 1.391 (4) |
C2—C3 | 1.364 (4) | C9—C11 | 1.506 (4) |
C2—H2 | 0.9300 | C10—C12i | 1.382 (4) |
O2—C11 | 1.247 (3) | C10—H10 | 0.9300 |
C3—H3 | 0.9300 | C12—C10i | 1.382 (4) |
N3—C8 | 1.333 (3) | C12—H12 | 0.9300 |
N3—C4 | 1.335 (4) | ||
N2—C1—C2 | 110.9 (2) | C5—C6—C7 | 116.8 (3) |
N2—C1—C6 | 120.5 (2) | C5—C6—C1 | 123.3 (2) |
C2—C1—C6 | 128.6 (3) | C7—C6—C1 | 120.0 (2) |
C3—N1—N2 | 113.3 (2) | C8—C7—C6 | 120.0 (3) |
C3—N1—H1 | 123.3 | C8—C7—H7 | 120.0 |
N2—N1—H1 | 123.3 | C6—C7—H7 | 120.0 |
C11—O1—H11 | 102.3 (19) | N3—C8—C7 | 122.2 (3) |
H1W—O1W—H2W | 111.1 (12) | N3—C8—H8 | 118.9 |
C3—C2—C1 | 105.4 (3) | C7—C8—H8 | 118.9 |
C3—C2—H2 | 127.3 | C12—C9—C10 | 118.0 (2) |
C1—C2—H2 | 127.3 | C12—C9—C11 | 120.6 (3) |
C1—N2—N1 | 104.1 (2) | C10—C9—C11 | 121.4 (2) |
N1—C3—C2 | 106.3 (3) | C12i—C10—C9 | 120.9 (3) |
N1—C3—H3 | 126.8 | C12i—C10—H10 | 119.5 |
C2—C3—H3 | 126.8 | C9—C10—H10 | 119.5 |
C8—N3—C4 | 119.1 (2) | O2—C11—O1 | 124.0 (3) |
N3—C4—C5 | 122.0 (3) | O2—C11—C9 | 119.7 (3) |
N3—C4—H4 | 119.0 | O1—C11—C9 | 116.3 (3) |
C5—C4—H4 | 119.0 | C9—C12—C10i | 121.1 (3) |
C4—C5—C6 | 120.0 (3) | C9—C12—H12 | 119.4 |
C4—C5—H5 | 120.0 | C10i—C12—H12 | 119.4 |
C6—C5—H5 | 120.0 |
Symmetry code: (i) −x, −y, −z. |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1···O1Wii | 0.86 | 1.98 | 2.829 (3) | 170 |
O1W—H1W···O2iii | 0.84 (1) | 1.99 (1) | 2.811 (3) | 167 (2) |
O1W—H2W···O1iv | 0.84 (1) | 2.06 (1) | 2.864 (3) | 161 (2) |
O1—H11···N3 | 0.82 (1) | 1.80 (1) | 2.614 (3) | 170 (3) |
Symmetry codes: (ii) x+1, y, z; (iii) x, y+1, z; (iv) −x+1, −y+1, −z. |
Experimental details
Crystal data | |
Chemical formula | 2C8H7N3·C8H6O4·2H2O |
Mr | 492.49 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 293 |
a, b, c (Å) | 6.8364 (14), 9.5308 (19), 10.131 (2) |
α, β, γ (°) | 67.52 (3), 71.22 (3), 78.10 (3) |
V (Å3) | 574.9 (2) |
Z | 1 |
Radiation type | Mo Kα |
µ (mm−1) | 0.11 |
Crystal size (mm) | 0.32 × 0.25 × 0.18 |
Data collection | |
Diffractometer | Rigaku SCXmini diffractometer |
Absorption correction | Multi-scan (ABSCOR; Higashi, 1995) |
Tmin, Tmax | 0.967, 0.981 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 5041, 2024, 1254 |
Rint | 0.054 |
(sin θ/λ)max (Å−1) | 0.594 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.064, 0.128, 1.21 |
No. of reflections | 2024 |
No. of parameters | 172 |
No. of restraints | 4 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.32, −0.28 |
Computer programs: PROCESS-AUTO (Rigaku, 1998), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), DIAMOND (Brandenburg & Putz, 2005).
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1···O1Wi | 0.86 | 1.98 | 2.829 (3) | 170 |
O1W—H1W···O2ii | 0.8400 (11) | 1.986 (7) | 2.811 (3) | 167 (2) |
O1W—H2W···O1iii | 0.8400 (11) | 2.058 (9) | 2.864 (3) | 161 (2) |
O1—H11···N3 | 0.8202 (11) | 1.801 (5) | 2.614 (3) | 170 (3) |
Symmetry codes: (i) x+1, y, z; (ii) x, y+1, z; (iii) −x+1, −y+1, −z. |
Acknowledgements
The authors acknowledge Hunan Provincial Department of Education for the Xiang Norimichi Foundation (2010 243).
References
Brandenburg, K. & Putz, H. (2005). DIAMOND. Crystal Impact GbR, Bonn, Germany. Google Scholar
Davies, G. M., Jeffery, J. C. & Ward, M. D. (2003). New J. Chem. 27, 1550–1553. Web of Science CSD CrossRef CAS Google Scholar
Higashi, T. (1995). ABSCOR. Rigaku Corporation, Tokyo, Japan. Google Scholar
Rigaku (1998). PROCESS-AUTO. Rigaku Americas Corporation, The Woodlands, Texas, USA. Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS 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.
In the title compound, the pyridine ring and the pyrazole ring are approximately coplanar with the dihedral angles between them being 4.69 (9)°. Two 4pp and one terephthalic acid form a linear three-molecule unit as a result of O—H···N hydrogen bonds (Fig.2 and Table 1), which the N atom is from the ring of pyridine.There is a hydrogen interaction between N1 from pyrazol as the hydrogen bond donor and O1w as the hydrogen bond acceptor.At the same time, O1w as the hydrogen bond donor interacts with two O2 atoms from different terephthalic acid (Fig.3). These supermolecules are assembled into a three-dimensional network by two types of hydrogen bonding including O—H···O and N—H···O.