Home Crystal structure of (Z)-4-(furan-2-yl((4-iodophenyl)amino)methylene)-5-methyl-2(p-tolyl)-2,4-dihydro-3H-pyrazol-3-one, C21H16I N3O2
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Crystal structure of (Z)-4-(furan-2-yl((4-iodophenyl)amino)methylene)-5-methyl-2(p-tolyl)-2,4-dihydro-3H-pyrazol-3-one, C21H16I N3O2

  • Zhang Li , Wu Qiong , Tong-Yin Jin , Ya-Zhai Zhang , Xiao-Zhong Wang and Heng-Qiang Zhang ORCID logo EMAIL logo
Published/Copyright: April 5, 2022
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Zeitschrift für Kristallographie - New Crystal Structures
From the journal Zeitschrift für Kristallographie - New Crystal Structures Volume 237 Issue 3

Abstract

C21H16I N3O2, monoclinic, P21/c (no. 14), a = 12.7439(9) Å, b = 11.8391(8) Å, c = 13.4459(7) Å, β = 99.803(5)°, V = 1999.0(2) Å3, Z = 4, R gt (F) = 0.0365, wR ref (F 2) = 0.0905, T = 293(2) K.

CCDC no.: 2161233

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: Yellow block
Size: 0.20 × 0.18 × 0.16 mm
Wavelength: Mo Kα radiation (0.71073 Å)
μ: 1.62 mm−1
Diffractometer, scan mode: Enhance X-ray source
θ max, completeness: 26.0°, >99%
N(hkl)measured, N(hkl)unique, R int: 8887, 3932, 0.023
Criterion for I obs, N(hkl)gt: I obs > 2 σ(I obs), 2943
N(param)refined: 260
Programs: CrysAlisPRO [1], SHELX [2], WinGX/ORTEP [3], PLATON [4]
Table 2:

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

Atom x y z U iso*/U eq
C1 0.3712 (2) −0.0607 (3) 0.7844 (2) 0.0437 (8)
C2 0.3524 (3) −0.1590 (3) 0.7297 (3) 0.0652 (11)
H2 0.318428 −0.156558 0.662833 0.078*
C3 0.3841 (3) −0.2611 (3) 0.7742 (3) 0.0706 (12)
H3 0.370880 −0.326692 0.736113 0.085*
C4 0.4343 (3) −0.2696 (3) 0.8726 (3) 0.0534 (9)
C5 0.4550 (3) −0.1709 (3) 0.9250 (3) 0.0650 (11)
H5 0.491487 −0.173180 0.991029 0.078*
C6 0.4229 (3) −0.0676 (3) 0.8822 (3) 0.0609 (10)
H6 0.436659 −0.002082 0.920330 0.073*
C7 0.4652 (4) −0.3822 (3) 0.9206 (4) 0.0753 (12)
H7A 0.531208 −0.374794 0.966750 0.113*
H7B 0.473561 −0.436138 0.869258 0.113*
H7C 0.410636 −0.407447 0.956580 0.113*
C8 0.2741 (3) 0.0711 (3) 0.6529 (2) 0.0474 (8)
C9 0.2675 (3) 0.1930 (3) 0.6509 (2) 0.0460 (8)
C10 0.3288 (3) 0.2287 (3) 0.7452 (3) 0.0488 (8)
C11 0.3480 (4) 0.3456 (3) 0.7861 (3) 0.0711 (12)
H11A 0.387369 0.342077 0.853535 0.107*
H11B 0.280964 0.382373 0.786777 0.107*
H11C 0.387952 0.387587 0.744141 0.107*
C12 0.2064 (3) 0.2514 (3) 0.5730 (2) 0.0480 (8)
C13 0.1963 (3) 0.3744 (3) 0.5742 (3) 0.0508 (9)
C14 0.1132 (3) 0.4370 (3) 0.5823 (3) 0.0607 (10)
H14 0.046827 0.410798 0.591899 0.073*
C15 0.1421 (4) 0.5490 (4) 0.5741 (4) 0.0824 (14)
H15 0.099557 0.611645 0.580225 0.099*
C16 0.2387 (4) 0.5510 (4) 0.5562 (4) 0.0797 (13)
H16 0.277347 0.615506 0.546490 0.096*
C17 0.0883 (3) 0.2341 (3) 0.4048 (2) 0.0498 (9)
C18 0.0001 (3) 0.1723 (3) 0.3628 (3) 0.0554 (9)
H18 −0.017347 0.106851 0.394562 0.066*
C19 −0.0627 (3) 0.2069 (3) 0.2738 (3) 0.0545 (9)
H19 −0.121684 0.164630 0.245134 0.065*
C20 −0.0368 (3) 0.3046 (3) 0.2281 (2) 0.0484 (8)
C21 0.0523 (3) 0.3650 (3) 0.2682 (3) 0.0538 (9)
H21 0.070007 0.429840 0.235710 0.065*
C22 0.1158 (3) 0.3301 (3) 0.3564 (3) 0.0554 (9)
H22 0.176583 0.370686 0.383087 0.066*
H3A 0.151 (3) 0.128 (3) 0.500 (3) 0.057 (13)*
I1 −0.13391 (2) 0.36276 (2) 0.09648 (2) 0.06770 (14)
N1 0.3383 (2) 0.0463 (2) 0.7428 (2) 0.0460 (7)
N2 0.3706 (2) 0.1439 (2) 0.7984 (2) 0.0506 (7)
N3 0.1503 (3) 0.1940 (3) 0.4959 (2) 0.0607 (9)
O1 0.2290 (2) 0.0018 (2) 0.59017 (18) 0.0671 (7)
O3 0.2754 (2) 0.4394 (3) 0.5540 (3) 0.0889 (9)

Source of material

All reagents were obtained from commercial sources and used without further purification. A mixture of 40 mL 1-p-tolyl-3-methyl-4-(2-furoyl)-5-pyrazolone (PTMFP) (20 mmol, 5.345 g), and 30 mL 4-iodoaniline (20 mmol, 4.381 g) was refluxed for 7 h, with a few drops of glacial acetic acid as a catalyst. After cooled to the room temperature, the mixture was filtrated and the collected solid was washed with ethanol and dried in the air. Yellow block crystals were obtained by evaporation of an ethanol/dichloromethane (1:1) solution for a few days.

Experimental details

The structure was solved by direct methods with the SHELXS-2018 program [2]. The H atom bonded to N3 was located in difference maps and refined freely. Other H placed in calculated positions, with C–H = 0.93 for phenyl and furyl, 0.96 for methyl H atoms, and refined as riding, with U iso(H) = 1.2 U eq(C) for phenyl and furyl and 1.5 U eq(C) for methyl H.

Comment

4-Acylpyrazolones are an interesting class of β-diketones, containing a pyrazole-bearing chelating arm. Their metal complexes are used for the separation of elements with similar properties [5]. In recent years, people have reported Schiff bases derived from acylpyrazolones and its complexes, which possess high antibacterial activation [5, 6]. In order to expand this field, we synthesized the title compound derived from PTMFP.

In the title crystal structure, atoms O1, C8, C9 and C12 of the PTMFP moiety and atom N3 of 4-iodoaniline group are coplanar. The dihedral angle between this mean plane and the pyrazole ring of PTMFP is 3.25(3)°. The bond length of d(C9–C12) = 1.380 (4) Å indicates the delocalization of the electrons. The atom O2 of PTMFP and the N3 atom of the 4-iodaniline group are on the same side of C9–C12 bond, which are available for coordination with metals. A strong intramolecular hydrogen bond N3–H3A⃛O1 is also indicative of the enamine-keto form. All bond lengths and angles are comparable with those found for related compounds [7], [8], [9]. In the crystal, molecules are linked via weak C–H⃛N and C–H⃛O hydrogen bonds.

Corresponding author: Heng-Qiang Zhang, Department of Chemistry, Hebei Normal University for Nationalities, Chengde 067000, People’s Republic of China, E-mail:

Funding source: Health Commission of Hebei Province http://dx.doi.org/10.13039/501100008240

Award Identifier / Grant number: 20201320

Funding source: Foundation of Hebei Education Department http://dx.doi.org/10.13039/501100003482

Award Identifier / Grant number: ZD2020412

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

  2. Research funding: This study was financially supported by the Health Commission of Hebei Province (No. 20201320) and the Foundation of Hebei Education Department (No. ZD2020412).

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

References

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6. Zhang, H.-Q., Li, J.-Z., Zhang, Y., Zhang, D. Synthesis, crystal structure and thermal stability of a one-dimensional chain acylpyrazolone complex Zn(C26H15N3O2Cl)2. Chin. J. Inorg. Chem. 2008, 24, 990–993.Search in Google Scholar

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Received: 2022-02-17
Accepted: 2022-03-23
Published Online: 2022-04-05
Published in Print: 2022-06-27

© 2022 Zhang Li et al., published by De Gruyter, Berlin/Boston

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

Articles in the same Issue

  1. Frontmatter
  2. New Crystal Structures
  3. Crystal structure of (E)-(4-imidazol-1-yl-phenyl)-(2-methoxy-benzylidene)-amine monohydrate, C17H17N3O2
  4. Crystal structure of 6-methyl-3-(pyrrolidine-1-carbonyl)-2H-chromen-2-one, C15H15N1O3
  5. Crystal structure of 4-methyl-4-nitropentanoic acid, C6H11NO4
  6. The crystal structure of (E)-3-(furan-2-yl)acrylonitrile, C7H5NO
  7. Crystal structure of 3-(difluoromethyl)-1-methyl-N-(4,11,11-trimethyl-1,2,3,4-tetrahydro-1,4-methanoacridin-9-yl)-1H-pyrazole-4-carboxamide monohydrate, C23H26F2N4O3
  8. Crystal structure of 2-(4-bromobenzyloxy)-6-chloropyridine, C12H9BrClNO
  9. Crystal structure of N-(4-bromo-2,6-dichloro-phenyl)pyrazin-2-amine, C10H6BrCl2N3
  10. Crystal structure of (E)-1-(2–nitrophenyl)-3-phenylprop-2-en-1-one, C15H11NO3
  11. The crystal structure of (E)-3-chloro-2-(2-(4-fluorobenzylidene)hydrazinyl)pyridine, C12H9ClFN3
  12. Crystal structure of (E)-amino(2-(thiazol-2-ylmethylene)hydrazineyl)methaniminium nitrate, C10H16N12O6S2
  13. Crystal structure of 9-methoxy-2,3,4,4a,5,6-hexahydro-1H-pyrido [1′,2′:1,6]pyrazino[2,3-b]quinoxaline, C15H18N4O
  14. The crystal structure bis(dimethylsulfoxide-κ1O)-dipyridine-κ1 N-bis(m2-(Z)-3-methyl-2-oxido-N-((Z)-oxido(phenyl)methylene)benzohydrazonato-κ5)trinickel(II) - dimethylsulfoxide (1/2), C48H56N6Ni3O10S4
  15. Crystal structure of bis(bis(triphenylphosphine)iminium) tetradecacarbonyltetratelluridopentaferrate(2-), (PPN)2[Fe5Te4(CO)14]
  16. Crystal structure of 4-Hydroxy-3-(naphthalen-2-ylthio)pent-3-en-2-one, C15H14O2S
  17. The crystal structure of [(1,10-phenanthroline-κ2 N,N)-bis(6-phenylpyridine-2-carboxylate-κ2 N,O)nickel(II)] monohydrate, C36H26N4O5Ni
  18. Crystal structure of 3,3′-(pyridine-2,6-diylbis(methylene))bis(1-propyl-1H-imidazol-3-ium) ditetrafluoroborate, C19H27B2F8N5
  19. The crystal structure of (E)-1-(4-aminophenyl)-3-(p-tolyl)prop-2-en-1-one, C16H15NO
  20. The crystal structure of poly[(μ2-terephthalato-κ4O,O′: O″,O‴)-(μ4-terephthalato-κ4O:O′:O″:O‴)-{μ4-(1,2,4,5-tetrakis(1,2,4-triazol-1-ylmethyl)-benzene-κ4O:O′:O″,O‴)}dicadmium(II)] – water – acetronitrile (1/2/2), C38H36N14O10Cd2
  21. The crystal structure of diaqua-bis(6-phenylpyridine-2-carboxylato-κ2 N,O)cobalt(II)–water–N,N-dimethylformamide(1/2/1), C27H31N3O9Co
  22. The co-crystal structure of 4-hydroxy-3-methoxybenzoic acid – 4,4′-bipyridine, C8H8O4·C10H8N2
  23. Crystal structure of catena-poly[(μ2-1,1′-(biphenyl-4,4′-diyl)bis(1H-imidazol)-κ2N:N′)-bis(4-bromobenzoate-κ1O)cobalt(II)], C32H22Br2CoN4O4
  24. Crystal structure of (E)-5-propyl-4-((pyridin-2-ylmethylene)amino)-2,4-dihydro-3H-1,2,4-triazole-3-thione – methanol (1/1), C11H13N5S
  25. The crystal structure of (Z)-4-bromo-6-(((1,3-dihydroxy-2-(hydroxymethyl)propan-2-yl)amino)methylene)cyclohexa-2,4-dien-1-one monohydrate, C11H16BrNO5
  26. Crystal structure of bis(tetrapropylammonium) nonaselenidotetrastannate(IV), (Pr4N)2[Sn4Se9]
  27. Crystal structure of 2,6-di-tert-butyl-4-(4-chlorobenzylidene)cyclohexa-2,5-dien-1-one, C21H25ClO
  28. Crystal structure of (2,2′-((naphthalen-1-ylmethyl)azanediyl)diacetato-κ3 N,O,O′)-(1,10-phenanthroline-κ2 N,N′)-copper(II) trihydrate, CuC27H27N3O7
  29. The crystal structure of tetrakis(6-phenylpyridine-2-carboxylato-κ2N,O)-bis(1H-pyrazol-3-ylamine-κ2 N:N)dicobalt(II) dihydrate, C27H23N5O5Co
  30. The crystal structure of bis((E)-2-((tert-butylimino)methyl)-4-chlorophenolato-κ2N,O)zinc(II), C22H26Cl2N2O2Zn
  31. The crystal structure of poly[diaqua-(μ3-5-nitrobenzene-1,2,3-tricarboxylato-κ3O:O′:O′)-(μ2-4,4′-dipyridylamine-κ2N:N′)copper(II)], C38H30Cu3N8O20
  32. The crystal structure of (E)-1-ferrocenyl-3-(naphthalen-1-yl)prop-2-en-1-one, C23H18FeO
  33. The crystal structure of (E)-1-ferrocenyl-3-(4-isopropylphenyl)prop-2-en-1-one, C22H22FeO
  34. Crystal structure of 6-hydroxy-2,2-dimethyl-4Hbenzo[d][1,3]dioxin-4-one, C10H10O4
  35. The crystal structure of (2E,4E)-1-ferrocenyl-5-phenylpenta-2,4-dien-1-one, C21H18FeO
  36. Crystal structure of alaninato-κ2N,O-bis(hydroxylamido-κ2N,O)-oxido-vanadium(V), C3H10N3O5V
  37. Crystal structure of catena-poly[aqua-bis[μ2-6-(1H-imidazol-1-yl)nicotinato-κ2 N,O]copper(II)], C18H14N6O5Cu
  38. Crystal structure of diethyl 4,6-diphenyl-1,9-di-p-tolylhexahydro-3H-2,7,3,5-(epimethanetriyliminomethanetriyl)cyclopenta[b]pyridine-3,5(2H)-dicarboxylate, C42H42N2O4
  39. The crystal structure of cobalt cadmium bis(hydrogenphosphate) bis(phosphate(V)) tetrahydrate, H10O20P4Co3.14Cd1.86
  40. Crystal structure of dimethyl 1,4,6,9-tetraphenylhexahydro-3H-2,7,3,5-(epimethanetriyliminomethanetriyl)cyclopenta[b]pyridine-3,7(2H)-dicarboxylate, C38H34N2O4
  41. Crystal structure of (Z)-4-(furan-2-yl((4-iodophenyl)amino)methylene)-5-methyl-2(p-tolyl)-2,4-dihydro-3H-pyrazol-3-one, C21H16I N3O2
  42. Crystal structure of (E)-1-(4-(3,5-dimethoxystyryl)phenyl)-7-ethylheptanedioate, C25H30O6
  43. Crystal structure of 6-bromo-2-(4-chlorophenyl)chroman-4-one (6-bromo-4′-chloroflavanone), C15H10BrClO2
  44. The crystal structure of 2-(benzhydryloxy)-3-nitropyridine, C18H14N2O3
  45. The crystal structure of 1,3(4,1)-dipyridin-1-iuma-2(1,8)-diethynylanthracena-5(1,3)-benzenacyclohexaphane-11,31-diium bis(hexafluoridophosphate), C36H24F12N2P2
  46. Crystal structure of 3,6-di-tert-butyl-1-iodo-9-methyl-8-(pyren-1-ylethynyl)-9H-carbazole, C39H34IN
  47. The cocrystal 2-(dimethylammonio)-5-nitrobenzoate – 2-(dimethylamino)-5-nitrobenzoic acid, C9H10N2O4
  48. Crystal structure of 5-nitroquinazolin-4(3H)-one, C8H5N3O3
https://doi.org/10.1515/ncrs-2022-0077
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Articles in the same Issue

  1. Frontmatter
  2. New Crystal Structures
  3. Crystal structure of (E)-(4-imidazol-1-yl-phenyl)-(2-methoxy-benzylidene)-amine monohydrate, C17H17N3O2
  4. Crystal structure of 6-methyl-3-(pyrrolidine-1-carbonyl)-2H-chromen-2-one, C15H15N1O3
  5. Crystal structure of 4-methyl-4-nitropentanoic acid, C6H11NO4
  6. The crystal structure of (E)-3-(furan-2-yl)acrylonitrile, C7H5NO
  7. Crystal structure of 3-(difluoromethyl)-1-methyl-N-(4,11,11-trimethyl-1,2,3,4-tetrahydro-1,4-methanoacridin-9-yl)-1H-pyrazole-4-carboxamide monohydrate, C23H26F2N4O3
  8. Crystal structure of 2-(4-bromobenzyloxy)-6-chloropyridine, C12H9BrClNO
  9. Crystal structure of N-(4-bromo-2,6-dichloro-phenyl)pyrazin-2-amine, C10H6BrCl2N3
  10. Crystal structure of (E)-1-(2–nitrophenyl)-3-phenylprop-2-en-1-one, C15H11NO3
  11. The crystal structure of (E)-3-chloro-2-(2-(4-fluorobenzylidene)hydrazinyl)pyridine, C12H9ClFN3
  12. Crystal structure of (E)-amino(2-(thiazol-2-ylmethylene)hydrazineyl)methaniminium nitrate, C10H16N12O6S2
  13. Crystal structure of 9-methoxy-2,3,4,4a,5,6-hexahydro-1H-pyrido [1′,2′:1,6]pyrazino[2,3-b]quinoxaline, C15H18N4O
  14. The crystal structure bis(dimethylsulfoxide-κ1O)-dipyridine-κ1 N-bis(m2-(Z)-3-methyl-2-oxido-N-((Z)-oxido(phenyl)methylene)benzohydrazonato-κ5)trinickel(II) - dimethylsulfoxide (1/2), C48H56N6Ni3O10S4
  15. Crystal structure of bis(bis(triphenylphosphine)iminium) tetradecacarbonyltetratelluridopentaferrate(2-), (PPN)2[Fe5Te4(CO)14]
  16. Crystal structure of 4-Hydroxy-3-(naphthalen-2-ylthio)pent-3-en-2-one, C15H14O2S
  17. The crystal structure of [(1,10-phenanthroline-κ2 N,N)-bis(6-phenylpyridine-2-carboxylate-κ2 N,O)nickel(II)] monohydrate, C36H26N4O5Ni
  18. Crystal structure of 3,3′-(pyridine-2,6-diylbis(methylene))bis(1-propyl-1H-imidazol-3-ium) ditetrafluoroborate, C19H27B2F8N5
  19. The crystal structure of (E)-1-(4-aminophenyl)-3-(p-tolyl)prop-2-en-1-one, C16H15NO
  20. The crystal structure of poly[(μ2-terephthalato-κ4O,O′: O″,O‴)-(μ4-terephthalato-κ4O:O′:O″:O‴)-{μ4-(1,2,4,5-tetrakis(1,2,4-triazol-1-ylmethyl)-benzene-κ4O:O′:O″,O‴)}dicadmium(II)] – water – acetronitrile (1/2/2), C38H36N14O10Cd2
  21. The crystal structure of diaqua-bis(6-phenylpyridine-2-carboxylato-κ2 N,O)cobalt(II)–water–N,N-dimethylformamide(1/2/1), C27H31N3O9Co
  22. The co-crystal structure of 4-hydroxy-3-methoxybenzoic acid – 4,4′-bipyridine, C8H8O4·C10H8N2
  23. Crystal structure of catena-poly[(μ2-1,1′-(biphenyl-4,4′-diyl)bis(1H-imidazol)-κ2N:N′)-bis(4-bromobenzoate-κ1O)cobalt(II)], C32H22Br2CoN4O4
  24. Crystal structure of (E)-5-propyl-4-((pyridin-2-ylmethylene)amino)-2,4-dihydro-3H-1,2,4-triazole-3-thione – methanol (1/1), C11H13N5S
  25. The crystal structure of (Z)-4-bromo-6-(((1,3-dihydroxy-2-(hydroxymethyl)propan-2-yl)amino)methylene)cyclohexa-2,4-dien-1-one monohydrate, C11H16BrNO5
  26. Crystal structure of bis(tetrapropylammonium) nonaselenidotetrastannate(IV), (Pr4N)2[Sn4Se9]
  27. Crystal structure of 2,6-di-tert-butyl-4-(4-chlorobenzylidene)cyclohexa-2,5-dien-1-one, C21H25ClO
  28. Crystal structure of (2,2′-((naphthalen-1-ylmethyl)azanediyl)diacetato-κ3 N,O,O′)-(1,10-phenanthroline-κ2 N,N′)-copper(II) trihydrate, CuC27H27N3O7
  29. The crystal structure of tetrakis(6-phenylpyridine-2-carboxylato-κ2N,O)-bis(1H-pyrazol-3-ylamine-κ2 N:N)dicobalt(II) dihydrate, C27H23N5O5Co
  30. The crystal structure of bis((E)-2-((tert-butylimino)methyl)-4-chlorophenolato-κ2N,O)zinc(II), C22H26Cl2N2O2Zn
  31. The crystal structure of poly[diaqua-(μ3-5-nitrobenzene-1,2,3-tricarboxylato-κ3O:O′:O′)-(μ2-4,4′-dipyridylamine-κ2N:N′)copper(II)], C38H30Cu3N8O20
  32. The crystal structure of (E)-1-ferrocenyl-3-(naphthalen-1-yl)prop-2-en-1-one, C23H18FeO
  33. The crystal structure of (E)-1-ferrocenyl-3-(4-isopropylphenyl)prop-2-en-1-one, C22H22FeO
  34. Crystal structure of 6-hydroxy-2,2-dimethyl-4Hbenzo[d][1,3]dioxin-4-one, C10H10O4
  35. The crystal structure of (2E,4E)-1-ferrocenyl-5-phenylpenta-2,4-dien-1-one, C21H18FeO
  36. Crystal structure of alaninato-κ2N,O-bis(hydroxylamido-κ2N,O)-oxido-vanadium(V), C3H10N3O5V
  37. Crystal structure of catena-poly[aqua-bis[μ2-6-(1H-imidazol-1-yl)nicotinato-κ2 N,O]copper(II)], C18H14N6O5Cu
  38. Crystal structure of diethyl 4,6-diphenyl-1,9-di-p-tolylhexahydro-3H-2,7,3,5-(epimethanetriyliminomethanetriyl)cyclopenta[b]pyridine-3,5(2H)-dicarboxylate, C42H42N2O4
  39. The crystal structure of cobalt cadmium bis(hydrogenphosphate) bis(phosphate(V)) tetrahydrate, H10O20P4Co3.14Cd1.86
  40. Crystal structure of dimethyl 1,4,6,9-tetraphenylhexahydro-3H-2,7,3,5-(epimethanetriyliminomethanetriyl)cyclopenta[b]pyridine-3,7(2H)-dicarboxylate, C38H34N2O4
  41. Crystal structure of (Z)-4-(furan-2-yl((4-iodophenyl)amino)methylene)-5-methyl-2(p-tolyl)-2,4-dihydro-3H-pyrazol-3-one, C21H16I N3O2
  42. Crystal structure of (E)-1-(4-(3,5-dimethoxystyryl)phenyl)-7-ethylheptanedioate, C25H30O6
  43. Crystal structure of 6-bromo-2-(4-chlorophenyl)chroman-4-one (6-bromo-4′-chloroflavanone), C15H10BrClO2
  44. The crystal structure of 2-(benzhydryloxy)-3-nitropyridine, C18H14N2O3
  45. The crystal structure of 1,3(4,1)-dipyridin-1-iuma-2(1,8)-diethynylanthracena-5(1,3)-benzenacyclohexaphane-11,31-diium bis(hexafluoridophosphate), C36H24F12N2P2
  46. Crystal structure of 3,6-di-tert-butyl-1-iodo-9-methyl-8-(pyren-1-ylethynyl)-9H-carbazole, C39H34IN
  47. The cocrystal 2-(dimethylammonio)-5-nitrobenzoate – 2-(dimethylamino)-5-nitrobenzoic acid, C9H10N2O4
  48. Crystal structure of 5-nitroquinazolin-4(3H)-one, C8H5N3O3
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