Startseite The crystal structure of ethyl 1-(4-nitrophenyl)-5-(trifluoromethyl)-1H-pyrazole-4-carboxylate, C13H10F3N3O4
Artikel Open Access

The crystal structure of ethyl 1-(4-nitrophenyl)-5-(trifluoromethyl)-1H-pyrazole-4-carboxylate, C13H10F3N3O4

  • Željko K. Jaćimović EMAIL logo , Milica Kosović , Goran A. Bogdanović , Sladjana B. Novaković , Gerald Giester und Miljan Bigović
Veröffentlicht/Copyright: 8. Mai 2017

Abstract

C13H10F3N3O4, triclinic, P1̅ (no. 2), a = 7.0524(14) Å, b = 7.8044(16) Å, c = 12.954(3) Å, α = 97.93(3)°, β = 96.29(3)°, γ = 100.11(3)°, V = 688.6(3) Å3, Z = 2, Rgt(F) = 0.0478, wRref(F2) = 0.1140, T = 200 K.

CCDC no.:: 1542451

The asymmetric unit of the title crystal structure is shown in the figure. Tables 1 and 2 contain details of the measurement method and a list of the atoms including atomic coordinates and displacement parameters.

Table 1

Data collection and handling.

Crystal:Colourless prism
Size:0.25 × 0.20 × 0.15 mm
Wavelength:Mo Kα radiation (0.71073 Å)
μ:1.4 cm−1
Diffractometer, scan mode:Nonius KappCCD, φ and ω
2θmax, completeness:61°, 98.4%
N(hkl)measured, N(hkl)unique, Rint:7772, 4105, 0.031
Criterion for Iobs, N(hkl)gt:Iobs > 2 σ(Iobs), 2579
N(param)refined:210
Programs:Nonius programs [1], SHELX [2]
Table 2

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

AtomxyzUiso*/Ueq
F10.23950(16)0.24478(14)0.13371(8)0.0545(3)
F20.11903(14)−0.01258(15)0.16293(9)0.0621(3)
F30.30087(16)0.01796(16)0.04237(8)0.0595(3)
O10.27285(19)0.94909(14)0.42622(10)0.0487(3)
O20.00370(17)0.77231(15)0.43368(10)0.0476(3)
O30.41696(18)−0.27728(16)0.09840(11)0.0572(4)
O40.72997(15)−0.25769(13)0.16326(8)0.0358(3)
N10.52381(16)0.22554(15)0.29754(9)0.0272(3)
N20.69502(17)0.20633(16)0.34964(10)0.0313(3)
N30.17602(19)0.80098(16)0.42229(10)0.0331(3)
C10.4379(2)0.37065(17)0.33726(11)0.0261(3)
C20.5517(2)0.53877(19)0.35806(11)0.0301(3)
H20.68290.55620.35030.036*
C30.4665(2)0.68038(18)0.39055(11)0.0306(3)
H30.53970.79440.40550.037*
C40.2712(2)0.64932(18)0.40030(11)0.0267(3)
C50.1603(2)0.48161(18)0.38674(11)0.0280(3)
H50.03080.46400.39810.034*
C60.2464(2)0.34017(18)0.35583(11)0.0293(3)
H60.17600.22550.34760.035*
C70.7300(2)0.05689(19)0.30129(12)0.0311(3)
H70.83880.01020.32050.037*
C80.5840(2)−0.02324(18)0.21749(11)0.0295(3)
C90.4537(2)0.08995(18)0.21664(11)0.0285(3)
C100.2778(2)0.0844(2)0.13885(12)0.0389(4)
C110.5641(2)−0.1974(2)0.15184(12)0.0342(3)
C120.7245(3)−0.4309(2)0.10223(13)0.0405(4)
H12A0.7097−0.42430.02760.049*
H12B0.6152−0.51510.11580.049*
C130.9094(3)−0.4879(3)0.13379(16)0.0586(5)
H13A1.0166−0.40450.11940.088*
H13B0.9084−0.60190.09470.088*
H13C0.9228−0.49400.20770.088*

Source of material

Ethyl 1-(4-nitrophenyl)-5-(trifluoromethyl)-1H-pyrazole-4-carboxylate was purchased from Sigma-Aldrich. Crystals suitable for the X-ray diffraction experiments were obtained by recrystallization from methanol.

Experimental details

The hydrogen atoms were placed at geometrically idealized positions with C—H distances set to 0.93, 0.97 and 0.96 Å from phenyl, methylene and methyl C atoms, respectively. The isotropic displacement parameters were set equal to 1.2Ueq and 1.5Ueq of the parent C atoms.

Comment

Pyrazole derivatives have broad applications in medicinal [3, 4] and agricultural chemistry [5, 6] . The pharmacological activity of these compounds is very diverse. A number of substituted pyrazoles are reported as anti-inflammatory, analgesic, anti-bacterial and anti-cancer agents [3, 4] . It has been found that the presence of a fluoroalkyl substituent on the pyrazole core can significantly increase the lipophilicity and solubility of the compounds and thus improve their biological activity [7], [8], [9]. The fluoroalkylated pyrazoles are therefore promising drug and herbicide candidates, while some of them already find practical use, as is the case with the non-steroidal antirheumatic drug celecoxib [10], or a broad-use insecticide fipronil [11], both belonging to N-phenylpyrazoles. As a part of our ongoing interest on the synthesis, physico-chemical and structural properties of the pyrazole based coordination compounds [12, 13] we examined the crystal structure of the title pyrazole ligand.

The bond lengths and angles within the N-phenylpyrazole core are comparable with those reported for the similar pyrazole ligands [14], [15], [16], [17], [18]. The C1—N1 bond [1.436(2) Å] allows a rotation of the phenyl relative to the pyrazole ring, thus the dihedral angle between the corresponding ring planes is 49.26(6)°. In similar N-phenylpyrazole derivatives this dihedral angle varies in a broad range from 44.8 to 88.9° [15]. The torsion angle C5—C4—N3—O1 of 4.1(2)°, indicates only a slight twisting of the attached nitro group with respect to the phenyl ring. The carbon atom of the pyrazole CF3 substituent (C10) slightly deviates from the plane of the pyrazole ring [0.14(1) Å]. Inspection of the deviation of F atoms in different fluoromethyl pyrazoles [14, 15] indicates that the CF3 group can rotate with respect to the pyrazole ring. Thus the displacement of the F1 (chosen as the least deviating from the pyrazole plane) can vary from 0.01 in [15, 16] to 0.7 Å in the present case. The ethyl carboxylate group of the title compound is essentially planar (r.m.s deviation of non-H atoms is 0.05), with the maximum deviation of the terminal C13 atom [0.061(1) Å]. The dihedral angle between the best planes of the pyrazolyl fragment and ethyl carboxylate groups is 13.7(1)°. In the crystal packing, the inversion-related molecules form C–H⋯O hydrogen-bonded dimers, using the pairs of donors and acceptors from the ethyl carboxylate group [C12—H12a⋯O3i: C—H 0.97 Å, C⋯O 3.152(2) Å, H⋯O 2.60 Å, C—H⋯O 116°, (i) −x + 1, −y − 1, −z]. The structure is further stabilized by weak C—H⋯O interactions [C2—H2⋯O2ii: C—H 0.93 Å, C⋯O 3.350(2) Å, H⋯O 2.60 Å, C—H⋯O 138° (ii) x + 1, +y, +z], and weak π⋯π interactions between the neighboring phenyl rings [Cg⋯Cgiii 3.746 Å (iii) −x + 1, −y + 1, −z + 1].

Acknowledgement

G. A. B. and S. B. N. thank to the Ministry of Education, Science and Technological Development of the Republic of Serbia for financial support (Project No. 172014 and 172035). Ž. K. J. and M. K. thank the Ministry of Science of the Republic of Montenegro for financial support - National project.

References

1 Nonius. Nonius BV, Delft, The Netherlands, 1998.Suche in Google Scholar

2 Sheldrick, G. M.: A short history of SHELX. Acta Crystallogr. A64 (2008) 112–122.10.1107/S0108767307043930Suche in Google Scholar

3 Khan, M. F.; Alam, M. M.; Verma, G.; Akhtar, W.; Akhter, M.; Shaquiquzzaman, M.: The therapeutic voyage of pyrazole and its analogs: a review. Eur. J. Med. Chem. 120 (2016) 170–201.10.1016/j.ejmech.2016.04.077Suche in Google Scholar

4 Havrylyuk, D.; Roman, O.; Lesyk, R.: Synthetic approaches, structure activity relationship and biological applications for pharmacologically attractive pyrazole/pyrazolineethiazolidine-based hybrids. Eur. J. Med. Chem. 113 (2016) 145–166.10.1016/j.ejmech.2016.02.030Suche in Google Scholar

5 Singh, N.; Sangwan, N. K.; Dhindsa, K. S.: Synthesis and fungitoxic activity of 5-aryl-1-formyl-4, 5-dihydro-3-(2-hydroxyphenyl)-1H-pyrazoles and their complexes. Pest. Manage. Sci. 56 (2000) 284–288.10.1002/(SICI)1526-4998(200003)56:3<284::AID-PS128>3.0.CO;2-MSuche in Google Scholar

6 Lamberth, C.: Pyrazole chemistry in crop protection. Heterocycles 71 (2007) 1467–1502.10.3987/REV-07-613Suche in Google Scholar

7 Hagmann, W. K.: The many roles for fluorine in medicinal chemistry. J. Med. Chem. 51 (2008) 4359–4369.10.1021/jm800219fSuche in Google Scholar

8 Gouverneur, V.; Müller, K.: Fluorine in Pharmaceutical and Medicinal Chemistry: From Biophysical Aspects to Clinical Applications. Imperial College Press, London, 2012.10.1142/p746Suche in Google Scholar

9 Nenajdenko, V.: Fluorine in Heterocyclic Chemistry. Springer, Switzerland, 2014.10.1007/978-3-319-04435-4Suche in Google Scholar

10 Hassan, G. S.; Abou-Seri, S. M.; Kamel, G.; Ali, M. M.: Celecoxib analogs bearing benzofuran moiety as cyclooxygenase-2 inhibitors: design, synthesis and evaluation as potential anti-inflammatory agents. Eur. J. Med. Chem. 76 (2014) 482–483.10.1016/j.ejmech.2014.02.033Suche in Google Scholar

11 Cole, L. M.; Nicholson, R. A.; Casida, J. E.: Action of phenylpyrazole insecticides at the GABA-gated chloride channel. Pestic. Biochem. Physiol. 46 (1993) 47–54.10.1006/pest.1993.1035Suche in Google Scholar

12 Bogdanović, G. A.; Jaćimović, Ž. K.; Leovac, V. M.: Transition metal complexes with pyrazole-based ligands. XXII. 1Di-μ-thiocyanato-bis[(3,5-dimethyl-1H-pyrazole-1-carboxamidine-κ2 N,N′)(thiocyanato-κN)copper(II)] and a redetermination of bis(3,5-dimethyl-1H-pyrazole-1-carbox-amidine-κ2 N,N′)bis(nitrato-κO)-copper(II). Acta Crystallogr. C61 (2005) m376–m379.10.1107/S0108270105018913Suche in Google Scholar

13 Jaćimović, Ž. K.; Gieste, G.; Kosović, M.; Bogdanović, G. A.; Novaković, S. B.; Leovac, V. M.; Latinović, N.; Holló, B. B.; Mészáros Szécsényi, K.: Pyrazole-type complexes with Ni(II) and Cu(II) solvent exchange reactions in coordination compounds. J. Therm. Anal. Calorim. 127 (2017) 1501–1509.10.1007/s10973-016-5549-9Suche in Google Scholar

14 Beck, J. R.; Wright, F. L.: Synthesis of 1-aryl-5-(trifluoromethyl)-1H-pyrazole-4-carboxylic acids and esters. J. Heterocycl. Chem. 24 (1987) 739–740.10.1002/jhet.5570240338Suche in Google Scholar

15 Kawase, M.; Koiwai, H.; Yamano, A.; Miyamae, H.: Regioselective reaction of mesoionic 4-trifluoroacetyl-1,3-oxazolium-5-olates and phenylhydrazine: synthesis of trifluoromethyl substituted pyrazole and 1,2,4-triazine derivatives. Tetrahedron Lett. 39 (1998) 663–666.10.1016/S0040-4039(97)10712-2Suche in Google Scholar

16 Buriol, L.; Frizzo, C. P.; Prola, L. D. T.; Moreira, D. N.; Marzari, M. R. B.; Scapin, E.; Zanatta, N.; Bonacorso, H. G.; Martins, M. A. P.: Regioselective reaction of mesoionic 4-trifluoroacetyl-1,3-oxazolium-5-olates and phenylhydrazine: Synthesis of trifluoromethyl substituted pyrazole and 1,2,4-triazine derivatives. Catal. Lett. 141 (2011) 1130–1135.10.1007/s10562-011-0571-9Suche in Google Scholar

17 Touzot, A.; Soufyane, M.; Berber, H.; Toupet, L.; Mirand, C.: Synthesis of trifluoromethylated pyrazoles from trifluoromethylenaminones and monosubstituted hydrazines. J. Fluorine Chem. 125 (2004) 1299–1304.10.1016/j.jfluchem.2004.03.007Suche in Google Scholar

18 Kanishchev, O. S.; Bandera, Y. P.; Timoshenko, V. M.; Rusanov, E. B.; But, S. A.; Shermolovich, Y. G.: Synthesis of 5-polyfluoroalkyl-4-(p-tolyl-sulfonyl)pyrazoles and 4-polyfluoroalkyl-5-(p-tolylsulfonyl)pyrimidines from 1-dimethylamino-2-(p-tolylsulfonyl)-polyfluoro-1-alken-3-ones. Chem. Heterocycl. Compd. 43 (2007) 887–892.10.1007/s10593-007-0140-8Suche in Google Scholar

Received: 2016-12-9
Accepted: 2017-4-5
Published Online: 2017-5-8
Published in Print: 2017-7-26

©2017 Željko K. Jaćimović et al., published by De Gruyter.

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Artikel in diesem Heft

  1. Cover and Frontmatter
  2. Crystal structure of poly[diaqua-(μ2-4,4′-bipyridine-κ2N:N′)manganese(II)] bis(4-chlorobenzenesulfonate) – 4,4′-bipyridine – water (1/1/2) C42H40Cl2MnN6O10S2
  3. The crystal structure of 1,2-bis[2-methyl-5-(3-cyanophenyl)-3-thienyl]-3,3,4,4,5,5-hexafluoro-cyclopent-1-ene, C29H16F6N2S2
  4. Crystal structure of the first characterized polymeric copper and sodium complex diaqua-(tris-acetato-κO,O′)(μ2-acetato-κO′′)dinatrium copper(II) monohydrate, C8H18CuNa2O11
  5. The crystal structure of the Schiff base (E)-2,6-diisopropyl-N-(pyridin-3-yl-methylene)aniline, C18H22N2
  6. Crystal structure of methyl 2,7,7-trimethyl-4-(4-nitrophenyl)-5-oxo-1,4,5,6,7,8-hexahydro-quinoline-3-carboxylate, C20H22N2O5
  7. Crystal structure of bis(1,3-bis(diphenylphosphino)propane-κ2P,P′)silver(I) trifluorosulfonate–methanol (1:0.5), [Ag(C27H26P2)]SO3CF3⋅0.5CH3OH
  8. Crystal structure of μ-1,4-bis(diphenylphosphine)butane-2,9-dimethyl-1,10-phenanthroline-κ2N:N′-bis(cyano-κC)dicopper(I)]-water, C58H56Cu2N6O2P2
  9. Crystal structure of N2,N6-bis(1-hydrazinyl-2-methyl-1-oxopropan-2-yl) pyridine-2,6-dicarboxamide, C15H23N7O4
  10. Crystal structure of 1,3-dimethyl-2-phenyl-1H-perimidin-3-ium iodide, C19H17IN2
  11. Crystal structure of diaqua-(2,2′-(butane-1,4-diyl)-bis(5-carboxy-1H-imidazole-4-carboxylato)-κ4O,O′,N,N′)cadmium(II) monohydrate, C14H18O11N4Cd
  12. Crystal structure of ethyl (E)-3-(cyclopropylamino)-2-(2,4-dichloro-5-fluorobenzoyl) acrylate, C15H14Cl2FNO3
  13. Crystal structure of bis-(1-(4-chlorophenyl)-3-phenyl-4-thenoyl-1H-pyrazol-5-ol-κ2O,O′)-(N,N-dimethylformamide)zinc(II), C43H31Cl2N5O5S2Zn
  14. Crystal structure of tetrakis(μ3-2-(N-(2-hydroxyethyl)amino)ethoxo)-tetrachloro-tetra-cobalt(II) methanol solvate, C17H44Cl4Co4N4O9
  15. Crystal structure of 3-amino-1-(4-bromophenyl)-9-methoxy-1H-benzo[f]chromene-2-carbonitrile, C21H15BrN2O2
  16. Crystal structure of 2-amino-4-(4-isopropyl-phenyl)-3-cyano-5-oxo-4H,5H-pyrano[3,2-c]chromene, C22H18N2O3
  17. Crystal structure of 3-amino-8-methoxy-1-(4-methoxy phenyl)-1H-benzo[f]chromene-2-carbonitrile, C22H18N2O3
  18. Crystal structure of monoaqua-[6,6′-((1E,1′E)-(1,2-phenylene bis(azanylylidene))bis(methanylylidene))bis(4-bromo-2-nitrophenolato-κ4N,N′,O,O′)]zinc(II), C20H12Br2N4O7Zn
  19. Crystal structure of 11-(4-(dimethylamino)phenyl)-17-hydroxy-13-methyl-17-(prop-1-yn-1-yl)-1,2,6,7,8,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-3-one – acetonitril (1/2), C33H41N3O2
  20. Crystal structure of tert-butyl (phenylsulfinyl)carbamate, C11H15NO3S
  21. Crystal structure of catena-poly{diaqua-bis(3-(1H-1,2,4-triazol-1-yl)benzoato-κ2O:N)copper(II)} monohydrate, C18H18CuN6O7
  22. Crystal structure of tetraaqua-bis(3-(4H-1,2,4-triazol-4-yl)benzoato-κN)cobalt(II), C18H20CoN6O8
  23. The crystal structure of 4-bromo-N-cyclopropyl-2,5-difluorobenzenesulfonamide, C9H8BrF2NO2S
  24. Crystal structure of ([3,3′-bipyridine]-6,6′-dicarboxylato-κ2O:O′)-bis(1,2-bis(4-pyridyl)ethane-κ2N:N′)disilver(I) dihydrate, C37H35Ag2N5O6
  25. The crystal structure of (4-(1H-1,2,4-triazol-1-yl)benzoato-κN)-[4-(1H-1,2,4-triazol-1-yl)benzoic acid-κN]silver(I), C18H13AgN6O4
  26. Crystal structure of 3-(4-methoxyphenyl)-1-(4-methylphenyl)prop-2-en-1-one, C17H16O2
  27. Crystal structure of bis(2-((E)-((4-((E)-1-(ethoxyimino)ethyl)phenyl)imino)methyl)-5-methoxyphenolato-κ2O,N)copper(II), C36H38CuN4O6
  28. Crystal structure of poly[1,2-bis(1,2,4-triazol-4-yl)ethane-κ2N:N′]silver(I) bromate monohydrate]silver(I), C6H10AgBrN6O4
  29. The crystal structure of 2,3,5-triphenyl-2,3-dihydro-1H-tetrazol-1-ium 2,3-dioxoindoline-5-sulfonate, C27H19N5O5S
  30. Crystal structure of 3-(2-amino-1,3-selenazol-4-yl)-2H-chromen-2-one – dimethylformamide (1/1), C15H15N3O3Se
  31. Crystal structure of diethyl 3,3′-(diazene-1,2-diyl)(E)-dibenzoate, C18H18N2O4
  32. Crystal structure of cis-bis((1H-benzimidazol-2-yl)methanol-κN,O)-bis(isothiocyanato-κN)nickel(II), C18H16N6NiO2S2
  33. Crystal structure of bis(2-(2′-hydroxy-5′-methoxyphenyl)-1H-benzimidazole)boron – tetrahydrofuran (1/1), C36H37N4O6B
  34. Crystal structure of poly[aqua-bis(nitrato-κ2O,O′)-(μ3-1,3-benzimidazol-3-ium-1,3-diacetato-κ4O,O′:O′′:O′′′)dysprosium(III)], C11H11DyN4O11
  35. Crystal structure of n-butyl-tris(dicyclo-hexylamido)hafnium(IV), C40H75HfN3
  36. Crystal structure of (E)-1-[1-(3-chloro-4-fluoro-phenyl)ethylidene]-2-(2,4-dinitrophenyl)hydrazine, C28H20Cl2F2N8O8
  37. The crystal structure of ethyl 4-((2-hydroxybenzyl)amino)benzoate, a Schiff base, C16H17NO3
  38. Crystal structure of 3-(2-(4-isobutylphenyl)propanoyl)-1-methylimidazolidine-2,4-dione, C17H22N2O3
  39. Crystal structure of poly[(μ3-2-(pyrazin-2-ylthio)acetato-κ3N:O:S)silver(I)], C6H5AgN2O2S
  40. Crystal structure of (E)-1-(3-((E)-((2-hydroxynaphthalen-1-yl)methylene)amino)phenyl)ethanone O-benzyl oxime, C26H22N2O2
  41. Crystal structure of (E)-2,3-dihydroxybenzaldehyde O-(2-((((E)-1-(2,5-dihydroxyphenyl)ethylidene)amino)oxy)ethyl) oxime monohydrate, C17H20N2O7
  42. Crystal structure of 4-(chloromethyl)-3-nitrobenzoic acid, C8H6ClNO4
  43. Crystal stucture of 4-((10H-phenothiazin-10-yl)methyl)-2,6-di-tert-butylphenol, C27H31NOS
  44. The crystal structure of ethyl 1-(4-nitrophenyl)-5-(trifluoromethyl)-1H-pyrazole-4-carboxylate, C13H10F3N3O4
  45. Crystal structure of catena-poly[di-(μ3-oxido-κ3O:O:O)-tetraoxido-(μ2-5′-(pyrazin-2-yl)-1H,2′H-3,3′-bi(1,2,4-triazole)-κ2N:N′)dimolybdenum(VI)], C8H6Mo2N8O6
  46. Crystal structure of (3,6-dioxocyclohexa-1,4-diene-1,4-bis(olato)-κ4O,O′:O′′,O′′′)-bis(tris(2-pyridylmethyl)amine-κ4N,N′,N′′,N′′′))-dizinc(II) bis(hexafluorophosphate(V)), C42H38F12N8O4P2Zn2
  47. Crystal structure of catena-poly[hexakis(μ2-2-acetylphenolato-κ3O:O,O′)trimanganese(II)], C48H42Mn3O12
  48. The crystal structure of 2,2-difluoro-4-(trifluoromethyl)-2,5-dihydro-[1,3,2]dioxaborinino[5,4-c]chromen-3-ium-2-uide, C11H6BF5O3
  49. Crystal structure of methyl (E)-2-(4-(diethylamino)-2-hydroxybenzylidene)hydrazine-1-carboxylate, C13H19N3O3
  50. The crystal structure of tert-butyl 2,6-dihydropyrrolo[3,4-c]pyrazole-5(4H)-carboxylate, C10H15N3O2
  51. Crystal structure of 1,1-bis(η5-adamantylcyclopentadienyl)-3-phenyl-2-trimethylsilyl-2,3-dihydroisotitanazole, C42H55NSiTi
  52. Crystal structure of 2-(4-(2-(4-benzylpiperazin-1-yl)ethyl)benzyl)isoindoline-1,3-dione, C28H29N3O2
  53. Important impurity of Flupirtine – a single crystal study on ethyl (6-amino-5-((ethoxycarbonyl)amino)pyridin-2-yl)(4-fluorobenzyl)carbamate, C18H21FN4O4
  54. Crystal structure of ethyl 3-(4-methoxyphenyl)-1-(2-(4-methoxyphenyl)-2-oxoethyl)-1H-pyrazole-5-carboxylate, C22H22N2O5
  55. Crystal structure of 2,3,9,10-tetramethoxy-5,6-dihydroisoquinolino[2,1-b]isoquinolin-7-ium 5-hydroxy-3-(4-hydroxyphenyl)-4-oxo-4H-chromen-7-olate methanol solvate, C37H35N1O10
  56. The crystal structure of the inner salt of 2-[(aminoiminomethyl)amino]ethylcarbamic acid [systematic name: (2-((diaminomethylene)ammonio)ethyl)carbamate], C4H10N4O2
  57. Crystal structure of (8-hydroxy-5-nitroquinolinium) perchlorate – 8-hydroxy-5-nitroquinoline (1/1), C18H13ClN4O10
  58. The crystal structure of (5-methyl-1,2,4-oxadiazol-3-yl)ferrocene, C13H12FeN2O
  59. Crystal structure of methyl 1-(2-(fluorosulfonyl)ethyl)-2-oxocyclopentanecarboxylate, C9H13FO5S
  60. Crystal structure of the triclinic modification of 1-methyl-4-nitroimidzole, C4H5N3O2
  61. Corrigendum
  62. Crystal structure of 4-bromo-2-(1H-pyrazol-3-yl)phenol, C9H7BrN2O
Heruntergeladen am 30.9.2025 von https://www.degruyterbrill.com/document/doi/10.1515/ncrs-2016-0393/html
Button zum nach oben scrollen