Experimental
Crystal data
N2H62+·2C6H3N2O4−·2H2O Mr = 404.31 Triclinic, ![[P \overline 1]](teximages/at2534fi1.gif) a = 5.1727 (10) Å b = 6.6257 (13) Å c = 12.271 (3) Å α = 102.08 (3)° β = 93.92 (3)° γ = 107.44 (3)° V = 388.47 (17) Å3 Z = 1 Mo Kα radiation μ = 0.15 mm−1 T = 293 (2) K 0.16 × 0.08 × 0.07 mm
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Data collection
Kuma KM-4 four-circle diffractometer Absorption correction: none 2512 measured reflections 2279 independent reflections 1431 reflections with I > 2σ(I) Rint = 0.017 3 standard reflections every 200 reflections intensity decay: 3.72%
|
D—H⋯A | D—H | H⋯A | D⋯A | D—H⋯A | O6—H62⋯N1i | 0.81 (3) | 2.23 (3) | 3.031 (2) | 174 (3) | N3—H51⋯O4ii | 0.96 (2) | 1.85 (2) | 2.770 (2) | 160 (2) | O6—H61⋯O4ii | 0.98 (3) | 1.99 (3) | 2.9581 (18) | 168 (2) | O6—H61⋯N1ii | 0.98 (3) | 2.45 (2) | 3.039 (2) | 118.5 (18) | N3—H53⋯N2i | 0.91 (2) | 1.95 (2) | 2.8287 (18) | 163 (2) | N3—H53⋯O2i | 0.91 (2) | 2.50 (2) | 3.0627 (19) | 120.7 (17) | N3—H52⋯O6iii | 1.04 (2) | 1.71 (2) | 2.7473 (18) | 176.6 (19) | O1—H1⋯O3iv | 1.03 (4) | 1.51 (4) | 2.5152 (16) | 165 (3) | Symmetry codes: (i) x, y, z+1; (ii) -x+1, -y+1, -z+1; (iii) x, y+1, z; (iv) x-1, y+1, z. | |
Data collection: KM-4 Software (Kuma, 1996
); cell refinement: KM-4 Software; data reduction: DATAPROC (Kuma, 2001
); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008
); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008
); molecular graphics: SHELXTL (Sheldrick, 2008
); software used to prepare material for publication: SHELXL97.
Supporting information
In the course of experiments aiming to obtain single crystals of a calcium complex with pyridazine-3,6-dicarboxylate ligand, single crystals of either the triclinic modification of the pyridazine-3,6-dicarboxylic acid dihydrate (Starosta & Leciejewicz, 2004) or of the title compound were found in the mass of polycrystalline material. The crystals of the title compound appeared when hydrazine was used to maintain the acidicity of the initial solution.
All H atoms were located in a difference map and refined with isotropic displacement parameters.
Data collection: KM-4 Software (Kuma, 1996); cell refinement: KM-4 Software (Kuma, 1996); data reduction: DATAPROC (Kuma, 2001); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008).
Hydrazinediium bis(6-carboxypyridazine-3-carboxylate) dihydrate
top Crystal data top N2H62+·2C6H3N2O4−·2H2O | Z = 1 |
Mr = 404.31 | F(000) = 210 |
Triclinic, P1 | Dx = 1.728 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 5.1727 (10) Å | Cell parameters from 25 reflections |
b = 6.6257 (13) Å | θ = 6–15° |
c = 12.271 (3) Å | µ = 0.15 mm−1 |
α = 102.08 (3)° | T = 293 K |
β = 93.92 (3)° | Rectangular plate, colourless |
γ = 107.44 (3)° | 0.16 × 0.08 × 0.07 mm |
V = 388.47 (17) Å3 | |
Data collection top Kuma KM-4 four-circle diffractometer | Rint = 0.017 |
Radiation source: fine-focus sealed tube | θmax = 30.1°, θmin = 1.7° |
Graphite monochromator | h = −7→0 |
profile data from ω/2θ scans | k = −8→9 |
2512 measured reflections | l = −17→17 |
2279 independent reflections | 3 standard reflections every 200 reflections |
1431 reflections with I > 2σ(I) | intensity decay: 3.7% |
Refinement top 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)] = 0.040 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.133 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.02 | w = 1/[σ2(Fo2) + (0.092P)2] where P = (Fo2 + 2Fc2)/3 |
2279 reflections | (Δ/σ)max < 0.001 |
159 parameters | Δρmax = 0.52 e Å−3 |
0 restraints | Δρmin = −0.23 e Å−3 |
Crystal data top N2H62+·2C6H3N2O4−·2H2O | γ = 107.44 (3)° |
Mr = 404.31 | V = 388.47 (17) Å3 |
Triclinic, P1 | Z = 1 |
a = 5.1727 (10) Å | Mo Kα radiation |
b = 6.6257 (13) Å | µ = 0.15 mm−1 |
c = 12.271 (3) Å | T = 293 K |
α = 102.08 (3)° | 0.16 × 0.08 × 0.07 mm |
β = 93.92 (3)° | |
Data collection top Kuma KM-4 four-circle diffractometer | Rint = 0.017 |
2512 measured reflections | 3 standard reflections every 200 reflections |
2279 independent reflections | intensity decay: 3.7% |
1431 reflections with I > 2σ(I) | |
Refinement top R[F2 > 2σ(F2)] = 0.040 | 0 restraints |
wR(F2) = 0.133 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.02 | Δρmax = 0.52 e Å−3 |
2279 reflections | Δρmin = −0.23 e Å−3 |
159 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 F^2^ against ALL reflections. The weighted R-factor wR and goodness of fit S are based on F^2^, conventional R-factors R are based on F, with F set to zero for negative F^2^. The threshold expression of F^2^ > σ(F^2^) is used only for calculating R-factors(gt) etc. and is not relevant to the choice of reflections for refinement. R-factors based on F^2^ 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 | x | y | z | Uiso*/Ueq | |
O2 | 0.0745 (3) | 1.1260 (2) | 0.19096 (9) | 0.0301 (3) | |
O3 | 0.6795 (3) | 0.37197 (19) | 0.35261 (9) | 0.0292 (3) | |
O4 | 0.7130 (3) | 0.4033 (2) | 0.17502 (10) | 0.0319 (3) | |
O1 | −0.0377 (3) | 1.1253 (2) | 0.36330 (10) | 0.0315 (3) | |
N2 | 0.3236 (3) | 0.8346 (2) | 0.19854 (10) | 0.0248 (3) | |
N1 | 0.4514 (3) | 0.6882 (2) | 0.19574 (10) | 0.0261 (3) | |
C6 | 0.4853 (3) | 0.6120 (2) | 0.28600 (11) | 0.0198 (3) | |
C3 | 0.2223 (3) | 0.9032 (2) | 0.29085 (11) | 0.0191 (3) | |
C7 | 0.0773 (3) | 1.0655 (2) | 0.27720 (12) | 0.0212 (3) | |
C4 | 0.2473 (3) | 0.8274 (2) | 0.38706 (12) | 0.0238 (3) | |
C8 | 0.6396 (3) | 0.4472 (2) | 0.26852 (12) | 0.0215 (3) | |
C5 | 0.3863 (4) | 0.6784 (3) | 0.38484 (12) | 0.0250 (3) | |
O6 | 0.1862 (3) | 0.3212 (2) | 0.98874 (10) | 0.0295 (3) | |
N3 | 0.3528 (3) | 0.9661 (2) | 0.99354 (11) | 0.0233 (3) | |
H5 | 0.169 (4) | 0.871 (3) | 0.4510 (18) | 0.031 (5)* | |
H6 | 0.411 (4) | 0.628 (3) | 0.4471 (19) | 0.037 (6)* | |
H62 | 0.268 (6) | 0.416 (5) | 1.044 (2) | 0.059 (8)* | |
H51 | 0.288 (5) | 0.840 (4) | 0.9317 (19) | 0.038 (6)* | |
H61 | 0.223 (5) | 0.395 (4) | 0.927 (2) | 0.045 (6)* | |
H53 | 0.307 (5) | 0.924 (3) | 1.0576 (18) | 0.035 (5)* | |
H52 | 0.288 (5) | 1.098 (4) | 0.9885 (18) | 0.036 (5)* | |
H1 | −0.136 (8) | 1.234 (6) | 0.350 (3) | 0.117 (14)* | |
Atomic displacement parameters (Å2) top | U11 | U22 | U33 | U12 | U13 | U23 |
O2 | 0.0426 (8) | 0.0379 (6) | 0.0231 (5) | 0.0268 (6) | 0.0091 (5) | 0.0143 (4) |
O3 | 0.0400 (7) | 0.0348 (6) | 0.0259 (5) | 0.0261 (5) | 0.0095 (5) | 0.0130 (4) |
O4 | 0.0465 (8) | 0.0369 (6) | 0.0248 (5) | 0.0295 (6) | 0.0119 (5) | 0.0082 (4) |
O1 | 0.0459 (8) | 0.0394 (7) | 0.0263 (5) | 0.0315 (6) | 0.0165 (5) | 0.0148 (5) |
N2 | 0.0362 (8) | 0.0282 (6) | 0.0197 (5) | 0.0208 (6) | 0.0089 (5) | 0.0098 (5) |
N1 | 0.0382 (8) | 0.0294 (7) | 0.0215 (6) | 0.0231 (6) | 0.0105 (5) | 0.0092 (5) |
C6 | 0.0237 (7) | 0.0200 (6) | 0.0200 (6) | 0.0123 (5) | 0.0051 (5) | 0.0055 (5) |
C3 | 0.0225 (7) | 0.0199 (6) | 0.0184 (6) | 0.0109 (5) | 0.0044 (5) | 0.0056 (5) |
C7 | 0.0238 (7) | 0.0222 (7) | 0.0210 (6) | 0.0119 (6) | 0.0037 (5) | 0.0053 (5) |
C4 | 0.0339 (8) | 0.0279 (7) | 0.0179 (6) | 0.0194 (6) | 0.0084 (6) | 0.0077 (5) |
C8 | 0.0249 (8) | 0.0202 (6) | 0.0231 (6) | 0.0124 (6) | 0.0036 (5) | 0.0058 (5) |
C5 | 0.0373 (9) | 0.0284 (7) | 0.0190 (6) | 0.0206 (7) | 0.0081 (6) | 0.0102 (5) |
O6 | 0.0375 (7) | 0.0290 (6) | 0.0237 (6) | 0.0128 (5) | 0.0049 (5) | 0.0070 (4) |
N3 | 0.0225 (7) | 0.0293 (7) | 0.0220 (6) | 0.0121 (5) | 0.0057 (5) | 0.0084 (5) |
Geometric parameters (Å, º) top O2—C7 | 1.2082 (18) | C3—C7 | 1.5128 (18) |
O3—C8 | 1.2666 (17) | C4—C5 | 1.382 (2) |
O4—C8 | 1.2376 (18) | C4—H5 | 0.94 (2) |
O1—C7 | 1.2956 (18) | C5—H6 | 0.91 (2) |
O1—H1 | 1.03 (4) | O6—H62 | 0.81 (3) |
N2—N1 | 1.3241 (17) | O6—H61 | 0.98 (3) |
N2—C3 | 1.3313 (18) | N3—N3i | 1.440 (3) |
N1—C6 | 1.3317 (17) | N3—H51 | 0.96 (2) |
C6—C5 | 1.387 (2) | N3—H53 | 0.91 (2) |
C6—C8 | 1.5236 (18) | N3—H52 | 1.04 (2) |
C3—C4 | 1.3889 (19) | | |
| | | |
C7—O1—H1 | 111 (2) | C3—C4—H5 | 122.1 (13) |
N1—N2—C3 | 120.23 (12) | O4—C8—O3 | 127.45 (13) |
N2—N1—C6 | 120.34 (12) | O4—C8—C6 | 116.92 (12) |
N1—C6—C5 | 122.08 (13) | O3—C8—C6 | 115.63 (12) |
N1—C6—C8 | 113.36 (12) | C4—C5—C6 | 117.66 (13) |
C5—C6—C8 | 124.56 (12) | C4—C5—H6 | 119.8 (14) |
N2—C3—C4 | 122.16 (13) | C6—C5—H6 | 122.5 (14) |
N2—C3—C7 | 112.66 (12) | H62—O6—H61 | 103 (2) |
C4—C3—C7 | 125.17 (13) | N3i—N3—H51 | 106.7 (14) |
O2—C7—O1 | 126.02 (13) | N3i—N3—H53 | 105.3 (14) |
O2—C7—C3 | 119.91 (13) | H51—N3—H53 | 108 (2) |
O1—C7—C3 | 114.07 (12) | N3i—N3—H52 | 109.5 (13) |
C5—C4—C3 | 117.50 (13) | H51—N3—H52 | 117.5 (18) |
C5—C4—H5 | 120.3 (13) | H53—N3—H52 | 109.0 (18) |
Symmetry code: (i) −x+1, −y+2, −z+2. |
Hydrogen-bond geometry (Å, º) top D—H···A | D—H | H···A | D···A | D—H···A |
O6—H62···N1ii | 0.81 (3) | 2.23 (3) | 3.031 (2) | 174 (3) |
N3—H51···O4iii | 0.96 (2) | 1.85 (2) | 2.770 (2) | 160 (2) |
O6—H61···O4iii | 0.98 (3) | 1.99 (3) | 2.9581 (18) | 168 (2) |
O6—H61···N1iii | 0.98 (3) | 2.45 (2) | 3.039 (2) | 118.5 (18) |
N3—H53···N2ii | 0.91 (2) | 1.95 (2) | 2.8287 (18) | 163 (2) |
N3—H53···O2ii | 0.91 (2) | 2.50 (2) | 3.0627 (19) | 120.7 (17) |
N3—H52···O6iv | 1.04 (2) | 1.71 (2) | 2.7473 (18) | 176.6 (19) |
O1—H1···O3v | 1.03 (4) | 1.51 (4) | 2.5152 (16) | 165 (3) |
Symmetry codes: (ii) x, y, z+1; (iii) −x+1, −y+1, −z+1; (iv) x, y+1, z; (v) x−1, y+1, z. |
Experimental details
Crystal data |
Chemical formula | N2H62+·2C6H3N2O4−·2H2O |
Mr | 404.31 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 293 |
a, b, c (Å) | 5.1727 (10), 6.6257 (13), 12.271 (3) |
α, β, γ (°) | 102.08 (3), 93.92 (3), 107.44 (3) |
V (Å3) | 388.47 (17) |
Z | 1 |
Radiation type | Mo Kα |
µ (mm−1) | 0.15 |
Crystal size (mm) | 0.16 × 0.08 × 0.07 |
|
Data collection |
Diffractometer | Kuma KM-4 four-circle diffractometer |
Absorption correction | – |
No. of measured, independent and observed [I > 2σ(I)] reflections | 2512, 2279, 1431 |
Rint | 0.017 |
(sin θ/λ)max (Å−1) | 0.705 |
|
Refinement |
R[F2 > 2σ(F2)], wR(F2), S | 0.040, 0.133, 1.02 |
No. of reflections | 2279 |
No. of parameters | 159 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.52, −0.23 |
Hydrogen-bond geometry (Å, º) top D—H···A | D—H | H···A | D···A | D—H···A |
O6—H62···N1i | 0.81 (3) | 2.23 (3) | 3.031 (2) | 174 (3) |
N3—H51···O4ii | 0.96 (2) | 1.85 (2) | 2.770 (2) | 160 (2) |
O6—H61···O4ii | 0.98 (3) | 1.99 (3) | 2.9581 (18) | 168 (2) |
O6—H61···N1ii | 0.98 (3) | 2.45 (2) | 3.039 (2) | 118.5 (18) |
N3—H53···N2i | 0.91 (2) | 1.95 (2) | 2.8287 (18) | 163 (2) |
N3—H53···O2i | 0.91 (2) | 2.50 (2) | 3.0627 (19) | 120.7 (17) |
N3—H52···O6iii | 1.04 (2) | 1.71 (2) | 2.7473 (18) | 176.6 (19) |
O1—H1···O3iv | 1.03 (4) | 1.51 (4) | 2.5152 (16) | 165 (3) |
Symmetry codes: (i) x, y, z+1; (ii) −x+1, −y+1, −z+1; (iii) x, y+1, z; (iv) x−1, y+1, z. |
References
Gryz, M., Starosta, W. & Leciejewicz, J. (2004). J. Coord. Chem. 57, 917–922. Web of Science CSD CrossRef CAS Google Scholar
Kuma (1996). KM-4 Software. Kuma Diffraction Ltd, Wrocław, Poland. Google Scholar
Kuma (2001). DATAPROC. Version 10.0.7. Kuma Diffraction Ltd, Wrocław, Poland. Google Scholar
Kumar, V. S. S., Premkumar, T., Rath, N. P. & Govindarajan, S. (2007). Indian J. Chem. Sect B, 46, 141–147. Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Starosta, W. & Leciejewicz, J. (2004). J. Coord. Chem. 57, 1151–1156. Web of Science CSD CrossRef CAS Google Scholar
Sueur, S., Lagrengee, M., Abraham, F. & Brenard, C. (1987). J. Heterocycl. Chem. 24, 1285–1289. CrossRef CAS Google Scholar
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 | CRYSTALLOGRAPHIC COMMUNICATIONS |
ISSN: 2056-9890
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The structure of the title compound (I) is composed of one doubly-protonated hydrazine cation having its geometrical centre on an inversion centre at 1/2,0,0, two symmetry related singly-deprotonated pyridazine-3,6-dicarboxylate anions and a pair of symmetry related solvent water molecules. Fig.1 shows the asymetric unit with atom labelling scheme. Atoms forming the pyridazine ring are coplanar (r.m.s.0.057 Å). The carboxylate moiety (C7/O1/O2) makes an angle of 3.8 (1) ° with the pyridazine ring, while the (C8/O3/O4) group makes an angle of 1.1 (1) °. Bond lengths and bond angles within the title anion agree well with those reported in the structures of both modifications of the parent acid (Sueur et al., 1987, Starosta & Leciejewicz, 2004). A fairly strong hydrogen bond of 2.515 (2) Å is observed between the protonated O atom of the carboxylic group acting as a donor and the deprotonated carboxylate O atom in the adjacent anion giving rise to polyionic ribbons composed of pairs of anions (Fig. 2). The ribbons are bridged by weaker bonds in which the hydrazine cations and solvation water molecules are the donors and the anions' O atoms and hetero-ring N atoms act as acceptors.