| Literature DB >> 24940275 |
Thammarse S Yamuna1, Manpreet Kaur1, Jerry P Jasinski2, H S Yathirajan1.
Abstract
In the cation of the title salt, C8H13N4 (+)·C4H3O4 (-), the piperazinium ring adopts a slightly distorteded chair conformation. In the crystal, a single strong O-H⋯O inter-molecular hydrogen bond links the anions, forming chains along the c-axis direction. The chains of anions are linked by the cations, via N-H⋯O hydrogen bonds, forming sheets parallel to (100). These layers are linked by weak C-H⋯O hydrogen bonds, forming a three-dimensional structure. In addition, there are weak π-π inter-actions [centroid-centroid distance = 3.820 (9) Å] present involving inversion-related pyrimidine rings.Entities:
Year: 2014 PMID: 24940275 PMCID: PMC4051061 DOI: 10.1107/S1600536814011489
Source DB: PubMed Journal: Acta Crystallogr Sect E Struct Rep Online ISSN: 1600-5368
| C8H13N4+·C4H3O4− | |
| Monoclinic, | Cu |
| Cell parameters from 3297 reflections | |
| θ = 3.6–71.5° | |
| µ = 0.94 mm−1 | |
| β = 94.213 (3)° | |
| Block, colourless | |
| 0.22 × 0.16 × 0.06 mm |
| Agilent Xcalibur Eos Gemini diffractometer | 2455 independent reflections |
| Radiation source: Enhance (Cu) X-ray Source | 2090 reflections with |
| Detector resolution: 16.0416 pixels mm-1 | |
| ω scans | θmax = 71.1°, θmin = 3.6° |
| Absorption correction: multi-scan ( | |
| 8262 measured reflections |
| Refinement on | Hydrogen site location: mixed |
| Least-squares matrix: full | H atoms treated by a mixture of independent and constrained refinement |
| (Δ/σ)max < 0.001 | |
| Δρmax = 0.23 e Å−3 | |
| 2455 reflections | Δρmin = −0.27 e Å−3 |
| 186 parameters | Extinction correction: |
| 0 restraints | Extinction coefficient: 0.0012 (3) |
| Primary atom site location: structure-invariant direct methods |
| Geometry. All esds (except the esd in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell esds are taken into account individually in the estimation of esds in distances, angles and torsion angles; correlations between esds in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell esds is used for estimating esds involving l.s. planes. |
| N1A | 0.73318 (9) | 0.69373 (17) | 0.20819 (8) | 0.0218 (3) | |
| H1AA | 0.6882 | 0.7451 | 0.1554 | 0.026* | |
| H1AB | 0.6968 | 0.5788 | 0.2299 | 0.026* | |
| N2A | 0.91562 (9) | 0.69808 (17) | 0.33676 (8) | 0.0212 (3) | |
| N3A | 0.98791 (10) | 0.77052 (18) | 0.48251 (9) | 0.0244 (3) | |
| N4A | 1.09665 (9) | 0.62261 (18) | 0.37363 (9) | 0.0248 (3) | |
| C1A | 0.74267 (11) | 0.8382 (2) | 0.28219 (10) | 0.0223 (3) | |
| H1AC | 0.6694 | 0.8739 | 0.2997 | 0.027* | |
| H1AD | 0.7785 | 0.9539 | 0.2605 | 0.027* | |
| C2A | 0.80895 (11) | 0.7569 (2) | 0.36402 (10) | 0.0214 (3) | |
| H2AA | 0.8179 | 0.8540 | 0.4127 | 0.026* | |
| H2AB | 0.7707 | 0.6463 | 0.3882 | 0.026* | |
| C3A | 0.91155 (11) | 0.5639 (2) | 0.26058 (9) | 0.0230 (3) | |
| H3AA | 0.8806 | 0.4418 | 0.2798 | 0.028* | |
| H3AB | 0.9861 | 0.5395 | 0.2429 | 0.028* | |
| C4A | 0.84275 (11) | 0.6420 (2) | 0.17953 (10) | 0.0232 (3) | |
| H4AA | 0.8782 | 0.7557 | 0.1554 | 0.028* | |
| H4AB | 0.8355 | 0.5453 | 0.1306 | 0.028* | |
| C5A | 1.00316 (11) | 0.69522 (19) | 0.40052 (10) | 0.0186 (3) | |
| C6A | 1.07633 (13) | 0.7795 (2) | 0.54032 (11) | 0.0281 (4) | |
| H6A | 1.0695 | 0.8347 | 0.5985 | 0.034* | |
| C7A | 1.17713 (12) | 0.7133 (2) | 0.52036 (12) | 0.0287 (4) | |
| H7A | 1.2390 | 0.7224 | 0.5625 | 0.034* | |
| C8A | 1.18203 (12) | 0.6329 (2) | 0.43523 (12) | 0.0285 (4) | |
| H8A | 1.2495 | 0.5823 | 0.4194 | 0.034* | |
| O1B | 0.45437 (8) | 0.79460 (16) | 0.54884 (7) | 0.0247 (3) | |
| O2B | 0.62685 (8) | 0.69817 (16) | 0.54483 (7) | 0.0274 (3) | |
| O3B | 0.48860 (8) | 0.68609 (15) | 0.21591 (6) | 0.0227 (3) | |
| O4B | 0.33707 (8) | 0.85812 (15) | 0.22066 (6) | 0.0228 (3) | |
| C1B | 0.53605 (11) | 0.73177 (19) | 0.50805 (9) | 0.0170 (3) | |
| C2B | 0.51599 (11) | 0.70263 (19) | 0.40767 (9) | 0.0173 (3) | |
| H2B | 0.5605 | 0.6157 | 0.3779 | 0.021* | |
| C3B | 0.43843 (11) | 0.79386 (19) | 0.35918 (9) | 0.0174 (3) | |
| H3B | 0.3918 | 0.8740 | 0.3906 | 0.021* | |
| C4B | 0.41910 (10) | 0.77939 (19) | 0.25776 (9) | 0.0159 (3) | |
| H1B | 0.473 (2) | 0.801 (4) | 0.624 (2) | 0.091 (10)* |
| N1A | 0.0163 (6) | 0.0294 (7) | 0.0188 (6) | −0.0046 (5) | −0.0057 (5) | 0.0051 (5) |
| N2A | 0.0132 (6) | 0.0313 (7) | 0.0186 (6) | 0.0027 (4) | −0.0023 (4) | −0.0025 (5) |
| N3A | 0.0187 (6) | 0.0321 (7) | 0.0216 (7) | 0.0000 (5) | −0.0037 (5) | −0.0027 (5) |
| N4A | 0.0156 (6) | 0.0291 (7) | 0.0294 (7) | 0.0033 (5) | −0.0019 (5) | −0.0006 (5) |
| C1A | 0.0141 (6) | 0.0272 (7) | 0.0249 (7) | 0.0001 (5) | −0.0025 (5) | 0.0018 (6) |
| C2A | 0.0128 (6) | 0.0314 (7) | 0.0194 (7) | 0.0014 (5) | −0.0014 (5) | −0.0016 (6) |
| C3A | 0.0208 (7) | 0.0297 (8) | 0.0180 (7) | 0.0028 (5) | −0.0019 (5) | −0.0023 (6) |
| C4A | 0.0214 (7) | 0.0312 (8) | 0.0165 (7) | −0.0020 (6) | −0.0009 (5) | 0.0003 (6) |
| C5A | 0.0145 (6) | 0.0202 (7) | 0.0204 (7) | −0.0013 (5) | −0.0031 (5) | 0.0030 (5) |
| C6A | 0.0260 (8) | 0.0332 (8) | 0.0236 (8) | −0.0031 (6) | −0.0082 (6) | −0.0005 (6) |
| C7A | 0.0209 (7) | 0.0297 (8) | 0.0333 (9) | −0.0019 (6) | −0.0125 (6) | 0.0050 (6) |
| C8A | 0.0149 (7) | 0.0286 (8) | 0.0409 (9) | 0.0023 (5) | −0.0054 (6) | 0.0016 (7) |
| O1B | 0.0196 (5) | 0.0454 (7) | 0.0092 (5) | 0.0021 (4) | 0.0008 (4) | −0.0006 (4) |
| O2B | 0.0216 (5) | 0.0433 (7) | 0.0163 (5) | 0.0075 (4) | −0.0064 (4) | −0.0044 (4) |
| O3B | 0.0221 (5) | 0.0362 (6) | 0.0094 (5) | 0.0091 (4) | −0.0006 (4) | −0.0012 (4) |
| O4B | 0.0183 (5) | 0.0329 (6) | 0.0164 (5) | 0.0056 (4) | −0.0043 (4) | −0.0029 (4) |
| C1B | 0.0173 (6) | 0.0209 (7) | 0.0126 (7) | −0.0017 (5) | −0.0007 (5) | 0.0011 (5) |
| C2B | 0.0166 (6) | 0.0241 (7) | 0.0111 (6) | −0.0008 (5) | 0.0009 (5) | −0.0004 (5) |
| C3B | 0.0170 (6) | 0.0244 (7) | 0.0109 (6) | 0.0008 (5) | 0.0020 (5) | −0.0020 (5) |
| C4B | 0.0153 (6) | 0.0206 (7) | 0.0115 (6) | −0.0012 (5) | −0.0001 (5) | 0.0001 (5) |
| N1A—H1AA | 0.9900 | C3A—C4A | 1.5157 (19) |
| N1A—H1AB | 0.9900 | C4A—H4AA | 0.9900 |
| N1A—C1A | 1.4883 (19) | C4A—H4AB | 0.9900 |
| N1A—C4A | 1.4909 (18) | C6A—H6A | 0.9500 |
| N2A—C2A | 1.4640 (17) | C6A—C7A | 1.380 (2) |
| N2A—C3A | 1.4637 (18) | C7A—H7A | 0.9500 |
| N2A—C5A | 1.3782 (17) | C7A—C8A | 1.380 (2) |
| N3A—C5A | 1.3438 (19) | C8A—H8A | 0.9500 |
| N3A—C6A | 1.3351 (19) | O1B—C1B | 1.2890 (17) |
| N4A—C5A | 1.3477 (18) | O1B—H1B | 1.12 (3) |
| N4A—C8A | 1.3407 (19) | O2B—C1B | 1.2311 (17) |
| C1A—H1AC | 0.9900 | O3B—C4B | 1.2742 (16) |
| C1A—H1AD | 0.9900 | O4B—C4B | 1.2445 (16) |
| C1A—C2A | 1.5173 (19) | C1B—C2B | 1.4941 (17) |
| C2A—H2AA | 0.9900 | C2B—H2B | 0.9500 |
| C2A—H2AB | 0.9900 | C2B—C3B | 1.3181 (19) |
| C3A—H3AA | 0.9900 | C3B—H3B | 0.9500 |
| C3A—H3AB | 0.9900 | C3B—C4B | 1.4977 (17) |
| H1AA—N1A—H1AB | 108.1 | N1A—C4A—H4AA | 109.8 |
| C1A—N1A—H1AA | 109.6 | N1A—C4A—H4AB | 109.8 |
| C1A—N1A—H1AB | 109.6 | C3A—C4A—H4AA | 109.8 |
| C1A—N1A—C4A | 110.45 (10) | C3A—C4A—H4AB | 109.8 |
| C4A—N1A—H1AA | 109.6 | H4AA—C4A—H4AB | 108.2 |
| C4A—N1A—H1AB | 109.6 | N3A—C5A—N2A | 116.82 (12) |
| C3A—N2A—C2A | 114.29 (11) | N3A—C5A—N4A | 126.34 (13) |
| C5A—N2A—C2A | 119.56 (12) | N4A—C5A—N2A | 116.80 (13) |
| C5A—N2A—C3A | 119.55 (11) | N3A—C6A—H6A | 118.1 |
| C6A—N3A—C5A | 115.41 (13) | N3A—C6A—C7A | 123.76 (15) |
| C8A—N4A—C5A | 115.36 (13) | C7A—C6A—H6A | 118.1 |
| N1A—C1A—H1AC | 109.8 | C6A—C7A—H7A | 122.2 |
| N1A—C1A—H1AD | 109.8 | C8A—C7A—C6A | 115.59 (14) |
| N1A—C1A—C2A | 109.39 (11) | C8A—C7A—H7A | 122.2 |
| H1AC—C1A—H1AD | 108.2 | N4A—C8A—C7A | 123.47 (14) |
| C2A—C1A—H1AC | 109.8 | N4A—C8A—H8A | 118.3 |
| C2A—C1A—H1AD | 109.8 | C7A—C8A—H8A | 118.3 |
| N2A—C2A—C1A | 109.41 (12) | C1B—O1B—H1B | 111.6 (15) |
| N2A—C2A—H2AA | 109.8 | O1B—C1B—C2B | 115.42 (12) |
| N2A—C2A—H2AB | 109.8 | O2B—C1B—O1B | 125.37 (12) |
| C1A—C2A—H2AA | 109.8 | O2B—C1B—C2B | 119.20 (12) |
| C1A—C2A—H2AB | 109.8 | C1B—C2B—H2B | 119.0 |
| H2AA—C2A—H2AB | 108.2 | C3B—C2B—C1B | 121.98 (13) |
| N2A—C3A—H3AA | 109.5 | C3B—C2B—H2B | 119.0 |
| N2A—C3A—H3AB | 109.5 | C2B—C3B—H3B | 117.9 |
| N2A—C3A—C4A | 110.78 (12) | C2B—C3B—C4B | 124.24 (12) |
| H3AA—C3A—H3AB | 108.1 | C4B—C3B—H3B | 117.9 |
| C4A—C3A—H3AA | 109.5 | O3B—C4B—C3B | 116.94 (11) |
| C4A—C3A—H3AB | 109.5 | O4B—C4B—O3B | 124.90 (12) |
| N1A—C4A—C3A | 109.46 (11) | O4B—C4B—C3B | 118.15 (12) |
| N1A—C1A—C2A—N2A | 57.34 (15) | C5A—N3A—C6A—C7A | −1.5 (2) |
| N2A—C3A—C4A—N1A | −54.53 (16) | C5A—N4A—C8A—C7A | −0.6 (2) |
| N3A—C6A—C7A—C8A | −0.6 (2) | C6A—N3A—C5A—N2A | −174.86 (13) |
| C1A—N1A—C4A—C3A | 59.07 (15) | C6A—N3A—C5A—N4A | 2.9 (2) |
| C2A—N2A—C3A—C4A | 54.41 (16) | C6A—C7A—C8A—N4A | 1.8 (2) |
| C2A—N2A—C5A—N3A | −8.22 (19) | C8A—N4A—C5A—N2A | 175.90 (13) |
| C2A—N2A—C5A—N4A | 173.80 (12) | C8A—N4A—C5A—N3A | −1.9 (2) |
| C3A—N2A—C2A—C1A | −55.43 (16) | O1B—C1B—C2B—C3B | 23.25 (19) |
| C3A—N2A—C5A—N3A | −158.13 (13) | O2B—C1B—C2B—C3B | −155.66 (14) |
| C3A—N2A—C5A—N4A | 23.89 (19) | C1B—C2B—C3B—C4B | 176.05 (12) |
| C4A—N1A—C1A—C2A | −60.83 (14) | C2B—C3B—C4B—O3B | −6.6 (2) |
| C5A—N2A—C2A—C1A | 153.15 (13) | C2B—C3B—C4B—O4B | 173.29 (13) |
| C5A—N2A—C3A—C4A | −154.17 (13) |
| H··· | ||||
| N1 | 0.99 | 1.79 | 2.7601 (15) | 166 |
| N1 | 0.99 | 1.78 | 2.7493 (16) | 167 |
| C8 | 0.95 | 2.53 | 3.3133 (18) | 140 |
| O1 | 1.12 (3) | 1.35 (3) | 2.4679 (13) | 176 (3) |
Hydrogen-bond geometry (Å, °)
|
|
| H⋯ |
|
|
|---|---|---|---|---|
| N1 | 0.99 | 1.79 | 2.7601 (15) | 166 |
| N1 | 0.99 | 1.78 | 2.7493 (16) | 167 |
| C8 | 0.95 | 2.53 | 3.3133 (18) | 140 |
| O1 | 1.12 (3) | 1.35 (3) | 2.4679 (13) | 176 (3) |
Symmetry codes: (i) ; (ii) ; (iii) ; (iv) .