Home Crystal structure of the double salt bis(5-amino-1,2,4-triazol-4-ium-3-yl)methane hydrogen oxalate hemioxalate, C8H11N8O6
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Crystal structure of the double salt bis(5-amino-1,2,4-triazol-4-ium-3-yl)methane hydrogen oxalate hemioxalate, C8H11N8O6

  • Guo-tao Zhang , Hua Wang , Hong-ya Li and Biao Yan ORCID logo EMAIL logo
Published/Copyright: May 31, 2022

Abstract

C8H11N8O6, monoclinic, P21/n (no. 14), a = 5.6348(8) Å, b = 19.485(3) Å, c = 11.5316(17) Å, β = 101.013(2)°, V = 1242.8(3) Å3, Z = 4, Rgt(F) = 0.0396, wRref(F2) = 0.1039, T = 296(2) K.

CCDC no.: 1060500

Table 1 contains crystallographic data and Table 2 contains the list of the atoms including atomic coordinates and displacement parameters.

Table 1:

Data collection and handling.

Crystal: Colourless block
Size 0.37 × 0.28 × 0.14 mm
Wavelength: Mo Kα radiation (0.71073 Å)
μ: 0.15 mm−1
Diffractometer, scan mode: Bruker APEX-II, φ and ω
θmax, completeness: 27.6°, >99%
N(hkl)measured, N(hkl)unique, Rint: 7096, 2808, 0.026
Criterion for Iobs, N(hkl)gt: Iobs > 2 σ(Iobs), 2258
N(param)refined: 243
Programs: Bruker [1], SHELX [2], [3], [4], Diamond [5]
Table 2:

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2).

Atom x y z Uiso*/Ueq
C1 0.1276 (3) 0.25988 (7) 0.40800 (12) 0.0280 (3)
C2 0.4367 (3) 0.19870 (7) 0.49056 (12) 0.0272 (3)
C3 0.6448 (3) 0.15019 (9) 0.50425 (14) 0.0348 (4)
H3A 0.608 (4) 0.1142 (10) 0.4450 (16) 0.049 (5)*
H3B 0.786 (4) 0.1748 (9) 0.4923 (16) 0.044 (5)*
C4 0.6985 (3) 0.11877 (8) 0.62456 (13) 0.0310 (3)
C5 0.6522 (3) 0.05632 (7) 0.77502 (13) 0.0320 (3)
C6 0.0030 (3) 0.10290 (7) 0.13383 (12) 0.0306 (3)
C7 0.2004 (3) 0.14191 (8) 0.08432 (12) 0.0314 (3)
C8 0.0189 (3) 0.02596 (8) 0.45215 (13) 0.0329 (3)
O1 −0.1230 (2) 0.05986 (6) 0.07569 (10) 0.0440 (3)
O2 −0.0087 (3) 0.12053 (7) 0.23992 (10) 0.0506 (4)
H2 −0.070 (5) 0.0867 (10) 0.275 (2) 0.110 (10)*
O3 0.1993 (2) 0.13452 (7) −0.02278 (9) 0.0494 (3)
O4 0.3493 (2) 0.17700 (6) 0.15438 (9) 0.0365 (3)
O5 0.2007 (3) 0.06157 (8) 0.47122 (12) 0.0641 (4)
O6 −0.1458 (2) 0.02807 (6) 0.36035 (9) 0.0384 (3)
N1 0.1635 (2) 0.26599 (7) 0.52508 (10) 0.0307 (3)
H1 0.063 (4) 0.2880 (10) 0.5663 (17) 0.050 (5)*
N2 0.3582 (2) 0.22682 (6) 0.57786 (10) 0.0307 (3)
N3 0.3035 (2) 0.21850 (6) 0.38434 (10) 0.0283 (3)
H3 0.310 (4) 0.2034 (10) 0.3128 (18) 0.050 (5)*
N4 −0.0496 (3) 0.28839 (8) 0.33243 (12) 0.0417 (4)
H4A −0.152 (4) 0.3144 (11) 0.3634 (18) 0.061 (6)*
H4B −0.065 (4) 0.2813 (10) 0.254 (2) 0.055 (6)*
N5 0.8560 (2) 0.09183 (7) 0.79969 (12) 0.0361 (3)
H5 0.963 (4) 0.0964 (10) 0.8718 (18) 0.053 (5)*
N6 0.8865 (2) 0.13246 (7) 0.70495 (11) 0.0369 (3)
N7 0.5498 (2) 0.07197 (6) 0.66370 (11) 0.0331 (3)
H7 0.415 (4) 0.0549 (11) 0.622 (2) 0.066 (7)*
N8 0.5715 (3) 0.01313 (8) 0.84789 (14) 0.0444 (4)
H8A 0.649 (4) 0.0123 (10) 0.921 (2) 0.057 (6)*
H8B 0.425 (4) −0.0044 (11) 0.8271 (18) 0.061 (6)*

Source of material

Bis(5-amino-1H-1,2,4-triazol-3-yl)methane (BATZM) was synthesized and purified according to a reported method [6], oxalic acid dihydrate (0.630 g, 7.0 mmol) was added at room temperature to BATZM (0.631 g, 3.5 mmol) in deionized water (30 mL). The resulting solution was stirred for 2 h. Colourless block crystals of the title compound were obtained by slow evaporation from water.

Experimental details

All hydrogen atoms were originally found in electron density difference maps, but were treated differently in the refinement, only O–H distances restrained to 0.86(1) Å, and with Uiso(H) = 1.2Ueq(O).

Comment

Triazoles are widely present in energetic materials due to higher nitrogen content [7], [8], [9], bis-triazoles are an important class of energetic compounds [10, 11], we have also reported some bis-triazole compounds [6, 12], [13], [14].

The cation of the title compound has no symmetry, unlike that was found in the structure of the pure component and other salts [6, 1214]. The combination of H atoms with N3, indicates that N3 has the highest charge density among all N atoms in the base BATZM, this is the same as other salts. The midpoint of the O8–O8 i bond is the center of symmetry of the two asymmetric units Symmetry codes: (i) −x, −y, −z + 1. Neighbouring ion are further linked by electrostatic attractions and hydrogen bonds: O2–H2⋯O6 (dO2⋯O6 = 2.4862(16) Å, 170(3)°); N3–H3⋯O2 (dN3⋯O2 = 2.8971(17) Å, 112.5(16)°); N3–H3⋯O4 (dN3⋯O4 = 2.8308(16) Å, 174.2(19)°); N7–H7⋯O5 (dN7⋯O5 = 2.6773(18) Å, 142(2)°); N7–H7⋯O6i (dN7⋯O6 = 2.9692(18) Å, 138.3(19)°); N8–H8B⋯O1i (dN8⋯O1 = 3.168(2) Å, 137.5(18)°); N8–H8B⋯O6i (dN8⋯O6 = 3.157(2) Å, 135.9(18)°); N5–H5⋯O1ii (dN5⋯O1 = 3.2230(18) Å, 125.7(15)°, symmetry code: (ii) x + 1, y, z + 1; N5–H5⋯O3ii (dN5⋯O3 = 2.6666(18) Å, 156.4(18)°); N8–H8A⋯O1ii (dN8⋯O1 = 2.994(2) Å, 152.4(19)°); N4–H4B⋯N2iii (dN4⋯N2 = 2.8970(19) Å, 171.9(19)°, symmetry code: (iii) x − 1/2, −y + 1/2, z − 1/2); N1–H1⋯O3 iV (dN1⋯O3 = 3.2176(18) Å, 126.1(15)°, symmetry code: (iv) x − 1/2, −y + 1/2, z + 1/2); N1–H1⋯O4iV (dN1⋯O4 = 2.7568(17) Å, 173.7(18)°); N4–H4A⋯O3iV (dN4⋯O3 = 2.820(2) Å, 161.6(19)°) connecting the title compounds into a three-dimensional network. The geometric parameters of the title structure are all in the expected ranges [15].


Corresponding author: Biao Yan, School of Chemistry and Chemical Engineering, Yulin University, Yulin, Shaanxi 719000, P. R. China, E-mail:

Funding source: National Natural Science Foundation of China http://dx.doi.org/10.13039/501100001809

Award Identifier / Grant number: 22163012

Funding source: Foundation of Shaanxi Provincial Education Department

Award Identifier / Grant number: 20JS158

Funding source: Yulin University http://dx.doi.org/10.13039/501100019282

Award Identifier / Grant number: 2021007

Funding source: Dalian National Laboratory for Clean Energy

Award Identifier / Grant number: 2021007

Funding source: Yulin National High-tech Industrial Development Zone Science and Technology Plan Project

Award Identifier / Grant number: CXY-2021-20

Award Identifier / Grant number: CXY-2021-42

  1. Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.

  2. Research funding: National Natural Science Foundation of China (22163012), Key Laboratory Project Foundation of Shaanxi Provincial Education Department in China (20JS158), Joint Fund of the Yulin University and the Dalian National Laboratory for Clean Energy (YLU–DNL Fund 2021007), Yulin National High-tech Industrial Development Zone Science and Technology Plan Project (CXY-2021–20, CXY-2021–42).

  3. Conflict of interest statement: The authors declare no conflicts of interest regarding this article.

References

1. Bruker. APEX2, SAINT and SADABS; Bruker AXS Inc.: Madison, WI, 2009.Search in Google Scholar

2. Sheldrick, G. M. SHELXTL – integrated space-group and crystal-structure determination. Acta Crystallogr. 2015, A71, 3–8. https://doi.org/10.1107/s2053273314026370.Search in Google Scholar

3. Sheldrick, G. M. Crystal structure refinement with SHELXL. Acta Crystallogr. 2015, C71, 3–8. https://doi.org/10.1107/s2053229614024218.Search in Google Scholar

4. Sheldrick, G. M. A short history of SHELX. Acta Crystallogr. 2008, A64, 112–122. https://doi.org/10.1107/s0108767307043930.Search in Google Scholar PubMed

5. Brandenburg, K. DIAMOND; Crystal Impact GbR: Bonn, Germany, 2006.Search in Google Scholar

6. Li, H. Y., Yan, B., Ma, H. X., Sun, Z. Y., Ma, Y. J., Zhang, Z. F. Crystal structure, thermodynamic properties and detonation characterization of bis(5-amino-1,2,4-triazol-3-yl)methane. Acta Crystallogr. 2020, C76, 64–68. https://doi.org/10.1107/s2053229619016231.Search in Google Scholar

7. Gao, H., Shreeve, J. M. Azole-based energetic salts. Chem. Rev. 2011, 111, 7377–7436. https://doi.org/10.1021/cr200039c.Search in Google Scholar PubMed

8. Liu, Y. J., Zeng, Z. W., Huang, W., Shreeve, J. M., Tang, Y. X. From nitro- to heterocycle-functionalized 1,2,4-triazol-3-one derivatives: achieving high-performance insensitive energetic compounds. J. Org. Chem. 2022, 87, 4226–4231. https://doi.org/10.1021/acs.joc.1c03065.Search in Google Scholar PubMed

9. Chinnam, A. K., Staples, R. J., Shreeve, J. M. Selective synthesis of bis(3-(3-(trifluoromethyl)-1H-1,2,4-triazol-5-yl)-4,4′-azo- and -azoxyfurazan derivatives. J. Org. Chem. 2021, 86, 7781–7786. https://doi.org/10.1021/acs.joc.1c00531.Search in Google Scholar PubMed

10. Parisi, E., Landi, A., Fusco, S., Manfredi, C., Peluso, A., Wahler, S., Klapötke, T. M., Centore, R. High-energy-density materials: an amphoteric N-rich bis(triazole) and salts of its cationic and anionic species. Inorg. Chem. 2021, 60, 16213–16222. https://doi.org/10.1021/acs.inorgchem.1c02002.Search in Google Scholar PubMed PubMed Central

11. Zhao, G., Yin, P., Kumar, D., Imler, G. H., Parrish, D. A., Shreeve, J. M. Bis(3-nitro-1-(trinitromethyl)-1H-1,2,4-triazol-5-yl)methanone: an applicable and very dense green oxidizer. J. Am. Chem. Soc. 2019, 141, 19581–19584. https://doi.org/10.1021/jacs.9b11326.Search in Google Scholar PubMed

12. Yan, B., Li, H. Y., Ma, H. X., Ma, Y. J., Ma, X. R., Zhao, F. Q. Crystal structure, thermal behavior and detonation characterization of bis(3-nitro-1H-1,2,4-triazol-5-yl)methane. Propellants Explos. Pyrotech. 2020, 45, 1714–1719. https://doi.org/10.1002/prep.202000004.Search in Google Scholar

13. Yan, B., Li, H. Y., Ma, H. X., Ma, X. R., Sun, Z. Y., Ma, Y. J. Crystal structure, thermal behaviour and detonation characterization of bis(4,5-diamino-1,2,4-triazol-3-yl)methane monohydrate. Acta Crystallogr. 2020, C76, 891–896. https://doi.org/10.1107/s2053229620011080.Search in Google Scholar PubMed

14. Li, H. Y., Yan, B., Ma, H. X., Ma, X. R., Sun, Z. Y., Ma, Y. J. Crystal structure, thermal properties and detonation characterization of bis(5-amino-1,2,4-triazol-4-ium-3-yl)methane dinitrate. Acta Crystallogr. 2020, C76, 965–971. https://doi.org/10.1107/s2053229620012516.Search in Google Scholar

15. Allen, F. H., Kennard, O., Watson, D. G. Tables of bond lengths determined by X-ray and neutron diffraction. Part 1. bond lengths in organic compounds. J. Chem. Soc., Perkin Trans. 1987, 2, S1–S19. https://doi.org/10.1039/p298700000s1.Search in Google Scholar

Received: 2022-04-10
Accepted: 2022-05-05
Published Online: 2022-05-31
Published in Print: 2022-08-26

© 2022 Guo-tao Zhang et al., published by De Gruyter, Berlin/Boston

This work is licensed under the Creative Commons Attribution 4.0 International License.

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  69. The crystal structure of poly[aqua-(μ2-4,4′- bis(imidazolyl)biphenyl-κ2N:N′)-(μ2-3-nitrobenzene-1,2-dicarboxylato-κ2O:O′)]copper (II) hydrate, C26H21N5O8Cu
  70. The crystal structure of bis(4-(6-carboxy-8-ethyl-3-fluoro-5-oxo-5,8-dihydro-1,8-naphthyridin-2- yl)piperazin-1-ium) adipate tetrahydrate, C36H52F2N8O14
  71. Synthesis and crystal structure of poly[aqua(μ4-(1R,2S,4R)-4-hydroxy-1-((7-hydroxy-3-(4-hydroxy-3-sulfonatophenyl)-4-oxo-4H-chromen-8-yl)methyl)pyrrolidin-1-ium-2-carboxylate-κ4O:O′:O″:O‴)sodium(I)] monohydrate, C21H22NNaO12S
  72. Crystal structure of chlorido-(η6-toluene)(2,2′-bipyridine-κ2N,N′)ruthenium(II) hexafluorophosphate, C17H16ClN2RuPF6
  73. The crystal structure of (R)-6-hydroxy-8-methoxy-3-methylisochroman-1-one, C11H12O4
  74. Crystal structure of catena-poly[(5,5,7,12,12,14-hexamethyl -1,4,8,11-tetraazacyclotetradecane- κ4N,N′,Nʺ,N‴)nickel(II)-(μ2-perchlorato-κ2O:O′)] 3,5-dicarboxybenzoate – methanol (1/2), C27H49ClN4NiO12
  75. The crystal structure of 4-(chloromethyl)benzonitrile, C8H6ClN
  76. The crystal structure of dimethylammonium 8-[(7,9-dioxo-6,10-dioxaspiro[4.5]decan-8-ylidene)methyl]-9-oxo-6,10-dioxaspiro[4.5]dec-7-en-7-olate, C19H25NO8
  77. Crystal structure of (2R,3S,4S,5R,6S)-2-(acetoxymethyl)-6-((1-acetyl-5-bromo-4-chloro-1H-indol-3-yl)oxy)tetrahydro-2H-pyran-3,4,5-triyl triacetate hemihydrate C24H25BrClNO11
  78. The crystal structure of the co-crystal tetrakis[2-(tris(4-methoxyphenyl)stannyl)ethyl]silane – tetrahydrofuran – toluene – tetrahydrofurane (1/1/1), C103H116O13SiSn4
  79. Crystal structure of methyl 3-(1,3-dioxo-1H-benzo[de]isoquinolin-2(3H)-yl)propanoate, C16H13NO4
  80. Crystal structure of ethyl (Z)-3-amino-2-cyano-3-(2-oxo-2H-chromen-3-yl)acrylate, C15H12N2O4
  81. Crystal structure of methyl 2-(1,3-dioxo-1H-benzo[de]isoquinolin-2(3H)-yl)acetate, C15H11NO4
  82. Crystal structure of catena-poly[diaqua-bis(μ2-1,3-di(1H-imidazol-1-yl)propane-κ2N:N′)cobalt(II)] tetrafluoroterephthalate, C26H28N8O6F4Co
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