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There are two symmetry-independent mol­ecules in the unit cell of the title compound, C7H5N5O3. The tetrazole and phenyl rings are essentially planar and are not coplanar in either mol­ecule [dihedral angles 30.2 (1) and 7.0 (1)°]. In the structure, four mol­ecules are connected by O—H...N bridges, forming four-membered molecular aggregates which are linked together by a complex three-dimensional hydrogen-bond network.

Supporting information

cif

Crystallographic Information File (CIF) https://doi.org/10.1107/S0108270101012100/av1080sup1.cif
Contains datablocks global, I

hkl

Structure factor file (CIF format) https://doi.org/10.1107/S0108270101012100/av1080Isup2.hkl
Contains datablock I

CCDC reference: 174841

Comment top

1-Monosubstituted aryltetrazoles have attracted considerable theoretical and experimental interest. On the one hand, they are used as valuable intermediates in the synthesis of arylcyanamides (Gaponik et al., 1990) and different nitrogen-containing heterocycles (Voitekhovich et al., 2001). On the other hand, they attract interest as models for investigation of the interaction between tetrazole and phenyl rings. Previously, only the structures of 1-phenyltetrazole (Matsunaga et al., 1999) and 1-(2,4,6-trimethylphenyl)tetrazole (Lyakhov et al., 2000) have been described. In this paper, we present the crystal structure of a new compound, 4-Nitro-2-(1H-tetrazol-1-yl)phenol, (I). There are two symmetry-independent molecules in the structure denoted by letters A and B.

The tetrazole rings of molecules A and B have very similar geometries; they are planar to within 0.004 (2) and 0.005 (2) Å, respectively. Endocyclic angles vary from 105.5 (1) to 111.1 (1)° and from 106.1 (1) to 110.6 (1)° for molecules A and B, respectively. The N1—N2 and N3—N4 bonds are similar and longer than N2—N3, while the C5—N1 bond is longer than C5—N4 in both molecules. All the formal single endocyclic bonds are considerably shorter than those usually found for normal single bonds, but somewhat longer than normal double bonds (International Tables for Crystallography, 1992, Vol. C, pp. 707–791). This suggests that there is some conjugation in the tetrazole rings of (I), however, significant differences in the endocyclic bond lengths show that there is still considerable localization of charge within the ring.

The bond distances and angles in the phenyl fragments of (I) are consistent with those observed previously. The rings nearly planar to within 0.009 (1) and 0.008 (1) Å for molecules A and B, respectively.

The phenyl and tetrazole rings are not coplanar in either molecule, the dihedral angle between them being 30.2 (1) and 7.0 (1)° in molecules A and B, respectively. To compare these values with that of a free molecule of (I), an ab initio calculation of a single molecule in the 6–311 G** basis set using the GAMESS program (Schmidt et al., 1993) was carried out. Geometry optimization with respect to all variables results in a dihedral angle between the phenyl and tetrazole rings of 39.6°. It should be noted that in the crystal of 1-phenyltetrazole, the dihedral angle between the rings is 11.8 (1)° (Matsunaga et al., 1999), whereas the angle of 38.6° was obtained from an MP2/6–31 G* calculation for a free molecule of 1-phenyltetrazole (Matsunaga et al., 1999). The introduction of an ortho-substituent on the phenyl ring must result in more steric hindrance compared with 1-phenyltetrazole and, as a result, the dihedral angle between the rings increases. Such s situation is also seen in the crystal structure of 1-(2,4,6-trimethylphenyl)tetrazole, where the dihedral angle is 69.07 (9)° (Lyakhov et al., 2000), and also in molecule A of (I). In the case of molecule B of (I), a rather small dihedral angle is obtained. Taking these results into account, it may be presumed that the decrease in the dihedral angle in the crystal is due to molecular packing. In the structure of (I), this effect is larger for molecule B than for molecule A.

From an inspection of the packing of the molecules in (I), the following may be noted. There are two types of hydrogen bonds, O1A—H1A···N4B and O1B—H1B···N4A, between molecules A and B, resulting in the formation of four-membered aggregates in the structure (Fig. 2). C8B—H8B···N3A interactions may be considered as additional weak hydrogen bonds between molecules A and B in the four-membered aggregates. Connection of these aggregates is achieved mainly through C9A—H9A···N2B hydrogen bonds (N2A does not form similar bonds). There are also C—H···O contacts (Desiraju, 1996) between the nitro O atoms and the H atoms of the phenyl rings, thereby forming an additional connection between the aggregates. The molecules in the structure of (I) are thus linked together by a complex three-dimensional hydrogen-bond network.

Experimental top

The title compound was prepared by heterocyclization of 2-amino-4-nitrophenol with ethyl orthoformate and sodium azide in acetic acid (Voitekhovich et al., 2001). Single crystals were grown by slow crystallization from an acetonitrile solution.

Refinement top

H-atom positions were found from the ΔF map and all associated parameters were refined freely [C—H = 0.92 (2)–0.99 (2) Å].

Computing details top

Data collection: R3m Software (Nicolet, 1980); cell refinement: R3m Software; data reduction: R3m Software; program(s) used to solve structure: SIR97 (Altomare et al., 1999); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: ORTEP-3 for Windows (Farrugia, 1997) and PLATON (Spek, 1999); software used to prepare material for publication: SHELXL97.

Figures top
[Figure 1] Fig. 1. ORTEP-3 drawing (Farrugia, 1997) of molecule A of (I) with the atom-numbering scheme; for molecule B, substitute the A suffixes with B). Displacement ellipsoids are drawn at the 50% probability level and H atoms are shown as spheres of arbitrary radii.
[Figure 2] Fig. 2. [100] view of the four-membered aggregate in the structure of (I). Hydrogen-bonding bridges between the molecules are shown by dashed lines.
[Figure 3] Fig. 3. Packing diagram of the title compound.
1-(2-hydroxy-5-nitrophenyl)-1H-tetrazole top
Crystal data top
C7H5N5O3Z = 4
Mr = 207.16F(000) = 424
Triclinic, P1Dx = 1.592 Mg m3
a = 7.116 (2) ÅMo Kα radiation, λ = 0.71069 Å
b = 9.452 (2) ÅCell parameters from 25 reflections
c = 13.895 (3) Åθ = 12.5–19.8°
α = 86.43 (2)°µ = 0.13 mm1
β = 84.17 (2)°T = 293 K
γ = 68.42 (2)°Prism, colourless
V = 864.3 (4) Å30.54 × 0.40 × 0.30 mm
Data collection top
Nicolet R3m four-circle
diffractometer
Rint = 0.019
Radiation source: fine-focus sealed tubeθmax = 30.1°, θmin = 1.5°
Graphite monochromatorh = 010
ω/2θ scansk = 1213
5619 measured reflectionsl = 1919
5062 independent reflections3 standard reflections every 100 reflections
3704 reflections with I > 2σ(I) intensity decay: 0.1%
Refinement top
Refinement on F2Primary atom site location: structure-invariant direct methods
Least-squares matrix: fullSecondary atom site location: difference Fourier map
R[F2 > 2σ(F2)] = 0.045Hydrogen site location: difference Fourier map
wR(F2) = 0.143All H-atom parameters refined
S = 1.04 w = 1/[σ2(Fo2) + (0.0837P)2 + 0.0881P]
where P = (Fo2 + 2Fc2)/3
5062 reflections(Δ/σ)max = 0.001
311 parametersΔρmax = 0.25 e Å3
0 restraintsΔρmin = 0.27 e Å3
Crystal data top
C7H5N5O3γ = 68.42 (2)°
Mr = 207.16V = 864.3 (4) Å3
Triclinic, P1Z = 4
a = 7.116 (2) ÅMo Kα radiation
b = 9.452 (2) ŵ = 0.13 mm1
c = 13.895 (3) ÅT = 293 K
α = 86.43 (2)°0.54 × 0.40 × 0.30 mm
β = 84.17 (2)°
Data collection top
Nicolet R3m four-circle
diffractometer
Rint = 0.019
5619 measured reflections3 standard reflections every 100 reflections
5062 independent reflections intensity decay: 0.1%
3704 reflections with I > 2σ(I)
Refinement top
R[F2 > 2σ(F2)] = 0.0450 restraints
wR(F2) = 0.143All H-atom parameters refined
S = 1.04Δρmax = 0.25 e Å3
5062 reflectionsΔρmin = 0.27 e Å3
311 parameters
Special details top

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.

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2) top
xyzUiso*/Ueq
N1A0.23274 (18)0.27927 (11)0.65678 (7)0.0391 (2)
N2A0.1978 (3)0.13495 (15)0.63400 (10)0.0790 (6)
N3A0.1855 (4)0.05921 (16)0.71514 (11)0.0901 (7)
N4A0.2115 (2)0.15010 (14)0.79045 (9)0.0538 (3)
C5A0.2415 (3)0.28493 (17)0.75238 (9)0.0490 (3)
H5A0.263 (3)0.370 (3)0.7874 (17)0.080 (6)*
C6A0.2466 (2)0.39313 (13)0.58251 (8)0.0345 (2)
C7A0.3695 (2)0.54479 (13)0.60096 (8)0.0365 (3)
C8A0.3799 (2)0.65539 (14)0.52821 (9)0.0410 (3)
H8A0.469 (3)0.760 (2)0.5431 (14)0.059 (5)*
C9A0.2735 (2)0.61563 (15)0.43936 (9)0.0403 (3)
H9A0.279 (3)0.694 (2)0.3885 (12)0.052 (5)*
C10A0.1573 (2)0.46415 (14)0.42333 (8)0.0365 (3)
C11A0.1411 (2)0.35108 (14)0.49369 (8)0.0368 (3)
H11A0.052 (3)0.245 (2)0.4815 (12)0.048 (4)*
N12A0.0407 (2)0.42126 (14)0.33021 (8)0.0465 (3)
O1A0.47239 (18)0.57488 (12)0.68793 (7)0.0496 (3)
H1A0.527 (4)0.677 (3)0.6941 (17)0.088 (7)*
O2A0.0357 (2)0.52364 (14)0.27241 (7)0.0590 (3)
O3A0.0505 (3)0.28802 (15)0.31489 (9)0.0869 (5)
N1B0.29712 (18)0.04553 (11)0.83583 (7)0.0390 (2)
N2B0.3183 (3)0.10098 (16)0.74517 (9)0.0747 (5)
N3B0.3500 (4)0.00811 (17)0.68734 (10)0.0808 (6)
N4B0.3511 (2)0.13475 (14)0.73721 (9)0.0543 (3)
C5B0.3167 (3)0.09933 (15)0.82844 (10)0.0465 (3)
H5B0.301 (3)0.168 (2)0.8801 (14)0.063 (5)*
C6B0.26941 (19)0.13924 (13)0.91701 (8)0.0339 (2)
C7B0.2350 (2)0.08549 (13)1.01118 (8)0.0353 (3)
C8B0.2084 (2)0.18041 (15)1.08861 (9)0.0421 (3)
H8B0.183 (3)0.1464 (19)1.1551 (12)0.046 (4)*
C9B0.2206 (2)0.32217 (15)1.07342 (9)0.0419 (3)
H9B0.204 (3)0.387 (2)1.1268 (14)0.061 (5)*
C10B0.25793 (19)0.37022 (13)0.97979 (9)0.0358 (3)
C11B0.2813 (2)0.28149 (13)0.90095 (8)0.0353 (2)
H11B0.301 (2)0.3158 (19)0.8370 (12)0.045 (4)*
N12B0.27468 (19)0.51941 (12)0.96311 (9)0.0429 (3)
O1B0.23081 (17)0.05484 (10)1.02257 (7)0.0473 (3)
H1B0.222 (3)0.078 (3)1.0888 (17)0.082 (7)*
O2B0.2482 (2)0.59981 (13)1.03256 (9)0.0621 (3)
O3B0.3140 (2)0.55774 (13)0.88040 (8)0.0649 (3)
Atomic displacement parameters (Å2) top
U11U22U33U12U13U23
N1A0.0570 (7)0.0298 (5)0.0302 (5)0.0179 (4)0.0041 (4)0.0024 (4)
N2A0.1544 (17)0.0322 (6)0.0437 (7)0.0302 (8)0.0071 (9)0.0001 (5)
N3A0.173 (2)0.0363 (7)0.0498 (8)0.0312 (10)0.0084 (10)0.0081 (6)
N4A0.0795 (9)0.0423 (6)0.0375 (6)0.0237 (6)0.0040 (6)0.0104 (5)
C5A0.0789 (10)0.0422 (7)0.0301 (6)0.0294 (7)0.0013 (6)0.0054 (5)
C6A0.0477 (7)0.0312 (5)0.0267 (5)0.0184 (5)0.0009 (4)0.0019 (4)
C7A0.0487 (7)0.0335 (5)0.0286 (5)0.0181 (5)0.0033 (5)0.0016 (4)
C8A0.0530 (8)0.0311 (6)0.0379 (6)0.0155 (5)0.0003 (5)0.0024 (4)
C9A0.0538 (8)0.0376 (6)0.0322 (5)0.0211 (5)0.0029 (5)0.0066 (4)
C10A0.0486 (7)0.0402 (6)0.0244 (5)0.0218 (5)0.0013 (4)0.0006 (4)
C11A0.0482 (7)0.0342 (6)0.0288 (5)0.0173 (5)0.0019 (5)0.0007 (4)
N12A0.0655 (8)0.0511 (7)0.0264 (5)0.0274 (6)0.0044 (5)0.0005 (4)
O1A0.0722 (7)0.0374 (5)0.0327 (4)0.0164 (5)0.0145 (4)0.0051 (4)
O2A0.0790 (8)0.0651 (7)0.0327 (5)0.0309 (6)0.0065 (5)0.0102 (4)
O3A0.1449 (14)0.0517 (7)0.0478 (6)0.0264 (8)0.0363 (8)0.0119 (5)
N1B0.0575 (7)0.0274 (5)0.0303 (5)0.0147 (4)0.0009 (4)0.0010 (4)
N2B0.1519 (17)0.0432 (7)0.0296 (6)0.0406 (9)0.0088 (7)0.0000 (5)
N3B0.1589 (18)0.0499 (8)0.0356 (6)0.0438 (10)0.0088 (8)0.0070 (5)
N4B0.0803 (9)0.0377 (6)0.0431 (6)0.0200 (6)0.0017 (6)0.0077 (5)
C5B0.0687 (9)0.0298 (6)0.0405 (6)0.0180 (6)0.0023 (6)0.0013 (5)
C6B0.0438 (6)0.0267 (5)0.0289 (5)0.0113 (4)0.0008 (4)0.0013 (4)
C7B0.0450 (7)0.0286 (5)0.0318 (5)0.0144 (5)0.0004 (5)0.0046 (4)
C8B0.0572 (8)0.0381 (6)0.0300 (5)0.0185 (6)0.0037 (5)0.0017 (4)
C9B0.0559 (8)0.0367 (6)0.0331 (6)0.0180 (6)0.0013 (5)0.0025 (5)
C10B0.0431 (6)0.0280 (5)0.0363 (6)0.0143 (5)0.0011 (5)0.0009 (4)
C11B0.0460 (7)0.0279 (5)0.0308 (5)0.0138 (5)0.0018 (5)0.0026 (4)
N12B0.0534 (7)0.0324 (5)0.0458 (6)0.0202 (5)0.0002 (5)0.0009 (4)
O1B0.0746 (7)0.0328 (4)0.0374 (5)0.0252 (5)0.0006 (4)0.0072 (3)
O2B0.0948 (9)0.0432 (5)0.0563 (6)0.0344 (6)0.0005 (6)0.0126 (5)
O3B0.1042 (10)0.0453 (6)0.0532 (6)0.0418 (6)0.0105 (6)0.0042 (5)
Geometric parameters (Å, º) top
N1A—C5A1.327 (2)N1B—C5B1.334 (2)
N1A—N2A1.346 (2)N1B—N2B1.350 (2)
N1A—C6A1.427 (2)N1B—C6B1.431 (2)
N2A—N3A1.290 (2)N2B—N3B1.287 (2)
N3A—N4A1.350 (2)N3B—N4B1.343 (2)
N4A—C5A1.300 (2)N4B—C5B1.307 (2)
C5A—H5A0.92 (2)C5B—H5B0.96 (2)
C6A—C11A1.378 (2)C6B—C11B1.381 (2)
C6A—C7A1.401 (2)C6B—C7B1.405 (2)
C7A—O1A1.337 (1)C7B—O1B1.337 (1)
C7A—C8A1.395 (2)C7B—C8B1.397 (2)
C8A—C9A1.377 (2)C8B—C9B1.376 (2)
C8A—H8A0.98 (2)C8B—H8B0.98 (2)
C9A—C10A1.384 (2)C9B—C10B1.384 (2)
C9A—H9A0.99 (2)C9B—H9B0.96 (2)
C10A—C11A1.383 (2)C10B—C11B1.381 (2)
C10A—N12A1.458 (2)C10B—N12B1.461 (2)
C11A—H11A0.99 (2)C11B—H11B0.94 (2)
N12A—O3A1.207 (2)N12B—O3B1.220 (2)
N12A—O2A1.227 (2)N12B—O2B1.222 (2)
O1A—H1A0.91 (3)O1B—H1B0.93 (2)
C5A—N1A—N2A108.0 (1)C5B—N1B—N2B107.2 (1)
C5A—N1A—C6A131.5 (1)C5B—N1B—C6B132.8 (1)
N2A—N1A—C6A120.5 (1)N2B—N1B—C6B120.0 (1)
N3A—N2A—N1A105.9 (1)N3B—N2B—N1B106.9 (1)
N2A—N3A—N4A111.1 (1)N2B—N3B—N4B110.6 (1)
C5A—N4A—N3A105.5 (1)C5B—N4B—N3B106.1 (1)
N4A—C5A—N1A109.5 (1)N4B—C5B—N1B109.2 (1)
N4A—C5A—H5A124 (2)N4B—C5B—H5B124 (1)
N1A—C5A—H5A126 (2)N1B—C5B—H5B127 (1)
C11A—C6A—C7A121.4 (1)C11B—C6B—C7B121.0 (1)
C11A—C6A—N1A119.2 (1)C11B—C6B—N1B118.7 (1)
C7A—C6A—N1A119.4 (1)C7B—C6B—N1B120.3 (1)
O1A—C7A—C8A123.6 (1)O1B—C7B—C8B123.0 (1)
O1A—C7A—C6A117.5 (1)O1B—C7B—C6B118.4 (1)
C8A—C7A—C6A118.8 (1)C8B—C7B—C6B118.6 (1)
C9A—C8A—C7A120.5 (1)C9B—C8B—C7B120.8 (1)
C9A—C8A—H8A123 (1)C9B—C8B—H8B119 (1)
C7A—C8A—H8A117 (1)C7B—C8B—H8B121 (1)
C8A—C9A—C10A118.9 (1)C8B—C9B—C10B118.9 (1)
C8A—C9A—H9A121 (1)C8B—C9B—H9B121 (1)
C10A—C9A—H9A121 (1)C10B—C9B—H9B120 (1)
C11A—C10A—C9A122.5 (1)C11B—C10B—C9B122.3 (1)
C11A—C10A—N12A118.1 (1)C11B—C10B—N12B118.4 (1)
C9A—C10A—N12A119.3 (1)C9B—C10B—N12B119.3 (1)
C6A—C11A—C10A117.8 (1)C6B—C11B—C10B118.4 (1)
C6A—C11A—H11A121 (1)C6B—C11B—H11B119 (1)
C10A—C11A—H11A121 (1)C10B—C11B—H11B122 (1)
O3A—N12A—O2A123.3 (1)O3B—N12B—O2B123.2 (1)
O3A—N12A—C10A118.7 (1)O3B—N12B—C10B118.3 (1)
O2A—N12A—C10A117.8 (1)O2B—N12B—C10B118.5 (1)
C7A—O1A—H1A108 (2)C7B—O1B—H1B108 (1)
C5A—N1A—N2A—N3A0.4 (2)C5B—N1B—N2B—N3B0.3 (2)
C6A—N1A—N2A—N3A177.50 (17)C6B—N1B—N2B—N3B177.07 (16)
N1A—N2A—N3A—N4A0.0 (3)N1B—N2B—N3B—N4B0.2 (3)
N2A—N3A—N4A—C5A0.3 (3)N2B—N3B—N4B—C5B0.6 (3)
N3A—N4A—C5A—N1A0.6 (2)N3B—N4B—C5B—N1B0.8 (2)
N2A—N1A—C5A—N4A0.6 (2)N2B—N1B—C5B—N4B0.7 (2)
C6A—N1A—C5A—N4A176.96 (14)C6B—N1B—C5B—N4B176.21 (15)
C5A—N1A—C6A—C11A148.61 (16)C5B—N1B—C6B—C11B171.40 (15)
N2A—N1A—C6A—C11A28.7 (2)N2B—N1B—C6B—C11B5.2 (2)
C5A—N1A—C6A—C7A32.3 (2)C5B—N1B—C6B—C7B7.3 (2)
N2A—N1A—C6A—C7A150.32 (16)N2B—N1B—C6B—C7B176.15 (15)
C11A—C6A—C7A—O1A177.62 (12)C11B—C6B—C7B—O1B178.09 (12)
N1A—C6A—C7A—O1A1.41 (19)N1B—C6B—C7B—O1B0.57 (19)
C11A—C6A—C7A—C8A1.8 (2)C11B—C6B—C7B—C8B1.4 (2)
N1A—C6A—C7A—C8A179.18 (12)N1B—C6B—C7B—C8B179.94 (12)
O1A—C7A—C8A—C9A178.39 (13)O1B—C7B—C8B—C9B177.87 (13)
C6A—C7A—C8A—C9A1.0 (2)C6B—C7B—C8B—C9B1.6 (2)
C7A—C8A—C9A—C10A0.4 (2)C7B—C8B—C9B—C10B0.6 (2)
C8A—C9A—C10A—C11A1.1 (2)C8B—C9B—C10B—C11B0.7 (2)
C8A—C9A—C10A—N12A178.72 (13)C8B—C9B—C10B—N12B178.93 (13)
C7A—C6A—C11A—C10A1.2 (2)C7B—C6B—C11B—C10B0.2 (2)
N1A—C6A—C11A—C10A179.82 (12)N1B—C6B—C11B—C10B178.88 (12)
C9A—C10A—C11A—C6A0.3 (2)C9B—C10B—C11B—C6B0.9 (2)
N12A—C10A—C11A—C6A177.97 (12)N12B—C10B—C11B—C6B178.74 (11)
C11A—C10A—N12A—O3A6.6 (2)C11B—C10B—N12B—O3B1.9 (2)
C9A—C10A—N12A—O3A175.66 (16)C9B—C10B—N12B—O3B177.69 (14)
C11A—C10A—N12A—O2A171.25 (13)C11B—C10B—N12B—O2B177.92 (13)
C9A—C10A—N12A—O2A6.5 (2)C9B—C10B—N12B—O2B2.5 (2)
Hydrogen-bond geometry (Å, º) top
D—H···AD—HH···AD···AD—H···A
O1A—H1A···N4Bi0.91 (3)1.78 (3)2.665 (2)165 (2)
O1B—H1B···N4Aii0.93 (2)1.78 (2)2.703 (2)171 (2)
C5A—H5A···O2Biii0.92 (3)2.55 (2)3.234 (2)131 (2)
C5B—H5B···O3Biv0.96 (2)2.56 (2)3.283 (2)132 (1)
C8B—H8B···O3Av0.98 (2)2.57 (2)3.320 (2)133 (1)
C8B—H8B···N3Aii0.98 (2)2.56 (2)3.465 (2)153 (1)
C9A—H9A···N2Bvi0.98 (2)2.56 (2)3.540 (2)176 (2)
C9B—H9B···O2Av0.96 (2)2.58 (2)3.417 (2)145 (2)
C11B—H11B···O2Avi0.94 (2)2.53 (2)3.191 (2)128 (1)
Symmetry codes: (i) x1, y+1, z; (ii) x, y, z+2; (iii) x, y+1, z+2; (iv) x, y1, z; (v) x, y, z+1; (vi) x, y+1, z+1.

Experimental details

Crystal data
Chemical formulaC7H5N5O3
Mr207.16
Crystal system, space groupTriclinic, P1
Temperature (K)293
a, b, c (Å)7.116 (2), 9.452 (2), 13.895 (3)
α, β, γ (°)86.43 (2), 84.17 (2), 68.42 (2)
V3)864.3 (4)
Z4
Radiation typeMo Kα
µ (mm1)0.13
Crystal size (mm)0.54 × 0.40 × 0.30
Data collection
DiffractometerNicolet R3m four-circle
diffractometer
Absorption correction
No. of measured, independent and
observed [I > 2σ(I)] reflections
5619, 5062, 3704
Rint0.019
(sin θ/λ)max1)0.705
Refinement
R[F2 > 2σ(F2)], wR(F2), S 0.045, 0.143, 1.04
No. of reflections5062
No. of parameters311
H-atom treatmentAll H-atom parameters refined
Δρmax, Δρmin (e Å3)0.25, 0.27

Computer programs: R3m Software (Nicolet, 1980), R3m Software, SIR97 (Altomare et al., 1999), SHELXL97 (Sheldrick, 1997), ORTEP-3 for Windows (Farrugia, 1997) and PLATON (Spek, 1999), SHELXL97.

Selected geometric parameters (Å, º) top
N1A—C5A1.327 (2)N1B—C5B1.334 (2)
N1A—N2A1.346 (2)N1B—N2B1.350 (2)
N1A—C6A1.427 (2)N1B—C6B1.431 (2)
N2A—N3A1.290 (2)N2B—N3B1.287 (2)
N3A—N4A1.350 (2)N3B—N4B1.343 (2)
N4A—C5A1.300 (2)N4B—C5B1.307 (2)
C5A—N1A—N2A108.0 (1)C5B—N1B—N2B107.2 (1)
N3A—N2A—N1A105.9 (1)N3B—N2B—N1B106.9 (1)
N2A—N3A—N4A111.1 (1)N2B—N3B—N4B110.6 (1)
C5A—N4A—N3A105.5 (1)C5B—N4B—N3B106.1 (1)
N4A—C5A—N1A109.5 (1)N4B—C5B—N1B109.2 (1)
Hydrogen-bond geometry (Å, º) top
D—H···AD—HH···AD···AD—H···A
O1A—H1A···N4Bi0.91 (3)1.78 (3)2.665 (2)165 (2)
O1B—H1B···N4Aii0.93 (2)1.78 (2)2.703 (2)171 (2)
C5A—H5A···O2Biii0.92 (3)2.55 (2)3.234 (2)131 (2)
C5B—H5B···O3Biv0.96 (2)2.56 (2)3.283 (2)132 (1)
C8B—H8B···O3Av0.98 (2)2.57 (2)3.320 (2)133 (1)
C8B—H8B···N3Aii0.98 (2)2.56 (2)3.465 (2)153 (1)
C9A—H9A···N2Bvi0.98 (2)2.56 (2)3.540 (2)176 (2)
C9B—H9B···O2Av0.96 (2)2.58 (2)3.417 (2)145 (2)
C11B—H11B···O2Avi0.94 (2)2.53 (2)3.191 (2)128 (1)
Symmetry codes: (i) x1, y+1, z; (ii) x, y, z+2; (iii) x, y+1, z+2; (iv) x, y1, z; (v) x, y, z+1; (vi) x, y+1, z+1.
 

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