Home The crystal structure of catena-poly[(m2-4,4′-bipyridine-κ2 N:N)-bis(6-phenylpyridine-2-carboxylato-κ2 N,O) zinc(II)], C34H24N4O4Zn
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The crystal structure of catena-poly[(m2-4,4′-bipyridine-κ2 N:N)-bis(6-phenylpyridine-2-carboxylato-κ2 N,O) zinc(II)], C34H24N4O4Zn

  • Li-Hua Wang , Xi-Shi Tai ORCID logo and Yu-Pei Xia EMAIL logo
Published/Copyright: February 18, 2022
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Zeitschrift für Kristallographie - New Crystal Structures
From the journal Zeitschrift für Kristallographie - New Crystal Structures Volume 237 Issue 2

Abstract

C34H24N4O4Zn, monoclinic, I2/a (no. 15), a = 18.2546(14) Å, b = 11.0510(7) Å, c = 16.1874(15) Å, β = 119.605(11)°, V = 2839.2(5) Å3, Z = 4, R gt (F) = 0.0302, wR ref (F 2) = 0.0694, T = 200 K.

CCDC no.: 2118168

A part of the title coordination polymer is shown in the figure. 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: Colorless block
Size: 0.14 × 0.13 × 0.10 mm
Wavelength: Mo Kα radiation (0.71073 Å)
μ: 0.91 mm−1
Diffractometer, scan mode: SuperNova, ω
θ max, completeness: 25.0°, >99%
N(hkl)measured, N(hkl)unique, R int: 5980, 2506, 0.027
Criterion for I obs, N(hkl)gt: I obs > 2 σ(I obs), 2249
N(param)refined: 195
Programs: Bruker [1], Olex2 [2], SHELX [3], Diamond [4]
Table 2:

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

Atom x y z U iso*/U eq
Zn1 0.250000 0.61808 (3) 0.500000 0.01819 (11)
O1 0.37476 (8) 0.62111 (12) 0.57876 (9) 0.0214 (3)
O2 0.49557 (8) 0.72094 (14) 0.63175 (11) 0.0373 (4)
N1 0.29344 (10) 0.79028 (15) 0.44464 (11) 0.0216 (4)
N2 0.25200 (9) 0.48000 (14) 0.40501 (11) 0.0202 (4)
C1 0.16811 (12) 0.8483 (2) 0.29796 (14) 0.0263 (5)
C2 0.10432 (14) 0.9342 (2) 0.25404 (17) 0.0369 (6)
H2 0.111111 1.010632 0.280930 0.044*
C3 0.03147 (15) 0.9070 (3) 0.17135 (19) 0.0454 (7)
H3 −0.010316 0.965367 0.142091 0.055*
C4 0.02049 (15) 0.7946 (3) 0.13225 (19) 0.0519 (7)
H4 −0.028923 0.776384 0.076446 0.062*
C5 0.08244 (14) 0.7074 (2) 0.17516 (17) 0.0429 (6)
H5 0.074527 0.630542 0.148612 0.051*
C6 0.15589 (13) 0.7348 (2) 0.25736 (15) 0.0292 (5)
H6 0.197697 0.676304 0.285838 0.035*
C7 0.24951 (14) 0.87948 (19) 0.38257 (15) 0.0285 (5)
C8 0.28229 (17) 0.9957 (2) 0.39578 (18) 0.0495 (7)
H8 0.250433 1.057140 0.354254 0.059*
C9 0.36150 (18) 1.0207 (2) 0.4698 (2) 0.0589 (8)
H9 0.383379 1.098630 0.479021 0.071*
C10 0.40755 (15) 0.9286 (2) 0.52958 (17) 0.0412 (6)
H10 0.462123 0.942112 0.578787 0.049*
C11 0.37131 (12) 0.81550 (19) 0.51533 (14) 0.0249 (5)
C12 0.41885 (12) 0.71205 (19) 0.58144 (14) 0.0221 (5)
C13 0.32232 (11) 0.44336 (19) 0.40664 (14) 0.0239 (5)
H13 0.372763 0.480487 0.449323 0.029*
C14 0.32460 (12) 0.35377 (19) 0.34881 (14) 0.0246 (5)
H14 0.375693 0.331164 0.353749 0.029*
C15 0.25068 (11) 0.29731 (17) 0.28323 (13) 0.0187 (4)
C16 0.17744 (12) 0.3340 (2) 0.28215 (16) 0.0305 (5)
H16 0.126192 0.297894 0.240549 0.037*
C17 0.18098 (13) 0.4237 (2) 0.34278 (16) 0.0317 (5)
H17 0.130984 0.446749 0.340436 0.038*

Source of material

The title compound was synthesized by one pot method: 6-phenylpyridine-2-carboxylic acid (0.0996 g, 0.5 mmol), Zn(O2CMe)2 2H2O (0.0548 g, 0.25 mmol), NaOH (0.020 g, 0.5 mmol), and 4,4′-bipyridine (0.0781 g, 0.5 mmol) were added to water-95% ethanol (20 mL, v:v = 1:1) and stirred to dissolve at room temperature. The mixture was stirred at 70 °C for 4 h and cooled to room temperature. Then the reaction was continued for 3 h at room temperature and filtered. Colorless block crystals of the title compound were received after 20 days. Anal. Calcd. for C34H24N4O4Zn: C, 66.03; H, 3.88; N, 9.06. Found: C, 65.85; H, 4.18; N, 9.18. IR: 1653 cm−1 (C=O), 1602 cm−1 (C–C + C=N), 1436 cm−1 (C–C + C=N), 1403 cm−1 (C–C + C=N), 1369 cm−1 (COO–), 1225 cm−1 (C–H), 1072 cm−1 (C–H).

Experimental details

The hydrogen atoms were positioned geometrically (C–H = 0.93 Å). Their U iso values were set to 1.2U eq of the parent atoms.

Comment

The novel structures and excellent properties of coordination polymers have been highly favored by chemists [5]. For Zn(II) coordination polymers, they show novel structure [6] and potential applications in many ways such as antibacterial activity [7], electrocatalyst [8], fluorescence [9], antitumor activity [10], and so on. According to the literature reports, most of Zn(II) coordination polymers are constructed from ligands containing a carboxy, a carboxylate and an azacyclo-group. In our previous work, some metal complexes with 6-phenylpyridine-2-carboxylate as ligand have been synthesized and structural characterized [11], [12], [13], [14]. In this work, we selected 6-phenylpyridine-2-carboxylic acid and 4,4′-bipyridine as starting materials. We also elaborately used NaOH as modifier to adjust the pH value of the reaction system. With these points in mind, we successfully synthesized a new 1D Zn(II) coordination polymer (1). The structure of 1 was determined by elemental analysis, IR, and X-ray single-crystal diffraction. The results revealed that compound 1 possesses a zig-zag-chain structure. The asymmetrical unit of 1 contains one half of a Zn(II) ion (located on a twofold axis), one 6-phenylpyridine-2-carboxylate ligands and one half of a 4,4′-bipyridine ligand (see the figure). The Zn(II) ion is hexa-coordinated with two nitrogen atoms, two oxygen atoms from two different 6-phenylpyridine-2-carboxylate ligands and two nitrogen atoms from two different 4,4′-bipyridine ligands, forming a distorted ZnN4O2 octahedral geometry. The coordination mode of 6-phenylpyridine-2-carboxylate ligands in 1 is consistent with previous work [11], [12], [13], [14], [15]. The Zn–O and Zn–N distances are 1.9861(13) Å (Zn1–O1), 2.3991(16) Å (Zn1–N1), and 2.1793(16) Å (Zn1–N2), which is consistent with other Zn(II) complexes. The sum of angles around Zn(II) ion is 365.48° (N2–Zn1–N2a, 91.12(9)°; N1–Zn1–N2, 99.67(6)°; N1–Zn1–N1a, 75.02(8)°; N1a–Zn1–N2a, 99.67(6)°), and the angle of O1–Zn1–O1a is 178.07(8)°, showing that N1, N2, N1a, N2a atoms are at the equatorial plane and O1, O1a atoms are at axial position. The dihedral angle between the phenyl ring and pyridine ring of 6-phenylpyridine-2-carboxylate ligand is 31.7°. Two nitrogen atoms (N1, N1a) of 4,4′-bipyridine ligand coordinated with the two different Zn(II) atoms, respectively. So the molecules form the 1D zig-zag chain coordination polymer by the bridging of the 4,4′-bipyridine ligand.

Corresponding author: Yu-Pei Xia, College of Chemistry and Chemical Engineering, Weifang University, Weifang, Shandong 261061, P. R. China, E-mail:

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

Award Identifier / Grant number: 21171132

Funding source: Natural Science Foundation of Shandong http://dx.doi.org/10.13039/501100007129

Award Identifier / Grant number: ZR2014BL003

Funding source: Project of Shandong Province Higher Educational Science and Technology Program http://dx.doi.org/10. 13039/501100015642

Award Identifier / Grant number: J14LC01

Funding source: Science Foundation of Weifang

Award Identifier / Grant number: 2020ZJ1054

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

  2. Research funding: This project was supported by the National Natural Science Foundation of China (No. 21171132, http://dx.doi.org/10.13039/501100001809), the Natural Science Foundation of Shandong (ZR2014BL003, http://dx.doi.org/10.13039/501100007129), the Project of Shandong Province Higher Educational Science and Technology Program (J14LC01, http://dx.doi.org/10.13039/501100015642), and Science Foundation of Weifang (2020ZJ1054).

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

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Received: 2022-01-06
Accepted: 2022-02-04
Published Online: 2022-02-18
Published in Print: 2022-04-26

© 2022 Li-Hua Wang 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 {2,2′-{cyclohexane-1,2-diylbis[(azanylylidene)methylylidene]}bis(2,4-dibromophenolato)-κ4 N,N′,O,O′}copper(II) ─ diethylformamide (1/1), C23H23Br4CuN3O3
  4. The crystal structure of 2-(2-methyl-6-phenyl-4H-pyran-4-ylidene)-1H-indene-1,3(2H)-dione, C21H14O3
  5. Crystal structure of bis((1-methylbenzimidazol-2-yl)methyl)amine, C18H19N5
  6. Crystal structure of (E)-N′-(1-(2-hydroxy-4-methoxyphenyl)ethylidene) isonicotinohydrazide, C15H15N3O3
  7. Crystal structure of 2-((4-phenyl-5-(pyridin-4-yl)-4H-1,2,4-triazol-3-yl)thio)acetonitrile, C15H11N5S
  8. The crystal structure of 2,2′-((1E,1′E)-hydrazine-1,2-diylidenebis(methaneylylidene))bis(4-chlorophenol), C14H10Cl2N2O2
  9. Dichlorido-{2,6-bis(4,5-dihydro-1H-pyrazol-3-yl)pyridine-κ3 N,N′,N″}zinc(II), C11H9C12N5Zn
  10. The crystal structure of dichlorido-(2-((4-phenyl-2H-1,2,3-triazol-2-yl)methyl)pyridine-κ2N,N′)palladium(II), C14H12Cl2N4Pd
  11. The crystal structure of 1-(N1-benzyl-2-methyl-4-nitro-imidazol-5-yl)-4-(prop-2-yn-1-yl) piperazine, C18H21N5O2
  12. Crystal structure of (μ4-(1,2,4,5-tetra(1,2,4-triazol-1-ylmethyl)-benzene-κ4N:N1:N2:N3)disilver(I) diperchlorate
  13. The crystal structure of 1-(2-bromoethane)-4-amine-3,5-dinitropyrazole, C5H6Br1N5O4
  14. Crystal structure of (E)-1-(4-benzyl-3,5-dioxomorpholin-2-ylidene)ethyl acetate, C15H15N1O5
  15. The crystal structure of poly[diaqua-(μ2-1,2,4,5-tetrakis(1,2,4-triazol-1-ylmethyl)-benzene-κ2N:N′)-bis(μ3-terephthalato-κ3O:O′:O′′)dicadmium(II)], C17H15N6O5Cd
  16. Crystal structure of (E)-N′-(1-(5-chloro-2-hydroxyphenyl) ethylidene)thiophene-2-carbohydrazide, C13H11ClN2O2S
  17. The crystal structure of [(2,2′-bipyridine-k2 N,N)-bis(6-phenylpyridine-2-carboxylato-k2 N,O)cobalt(II)]-monohydrate, C36H26N4O5Co
  18. Crystal structure of (E)-N′-(2-chloro-6-hydroxybenzylidene)-3-hydroxybenzo-hydrazide monohydrate, C14H13ClN2O4
  19. Crystal structure of 1,1′-(methylene)bis(pyridin-1-ium) bis(1,2-dicyanoethene-1,2-dithiolato-κ2S:S)nickel(II), C42H30N14Ni2S8
  20. Crystal structure of 1,1′-(1,2-ethanediyl)bis(pyridin-1-ium) bis(1,2-dicyanoethene-1,2-dithiolato-κ2 S:S)nickel(II), C20H14N6NiS4
  21. The crystal structure of 1-methyl-1H-pyrazol-2-ium nitrate, C4H7O3N3
  22. The crystal structure of 4,4′-diselanediylbis(8-(hexyloxy)-3,6-dimethyl-1-(piperidin-1-yl)isoquinoline-7-carbonitrile), C46H60N6O2Se2
  23. The crystal structure of tris(6-methylpyridin-2-yl)phosphine selenide, C18H18N3PSe
  24. The crystal structure of 1,2-bis(2,4-dinitro-1H-imidazol-1-yl)ethane ─ acetone (1/1), C11H12N8O9
  25. Crystal structure of [diaqua[2,2′-(1,2-phenylene)bis(1H-imidazole-4-carboxylato-5-carboxy)-κ4N,N′,O,O′]nickel(II)] tetrahydrate, C16H12N4NiO10·4H2O
  26. The crystal structure of tris(4-methyl-1H-pyrazol-1-yl)methane, C13H16N6
  27. The crystal structure of 5,6-dichloro-2-(quinolin-8-yl)isoindoline-1,3-dione, C17H8Cl2N2O2
  28. Crystal structure of (E)-(2-methoxy-benzylidene)-(4-[1,2,4]triazol-1-yl-phenyl)-amine, C16H14N4O
  29. The crystal structure of (Z)-2-(4-(4-bromophenyl)thiazol-2-yl)-4-(3-hydroxybut-2-enoyl)-5-methyl -1,2-dihydro-3H-pyrazol-3-one – methanol (1/1), C18H18N3O4S
  30. Crystal structure of tetraaqua-tris(nitrato-κ2 O,O′) erbium(III) monohydrate, Er(NO3)3·5H2O, H10ErN3O14
  31. The crystal structure of 1-methyl-2-nitro-1H-imidazole 3-oxide, C4H5N3O3
  32. The crystal structure of 1-methyl-2-nitroimidazole, C4H5N3O2
  33. The crystal structure of 2-carboxyl-4-nitroimidazole monohydrate, C4H5N3O5
  34. Crystal structure of bis[hydrido-hexaphenylcarbodiphosphoran][tetra-trifluoromethyl-(μ-diiodo)-diplatinat]
  35. The crystal structure of poly[μ2-aqua- aqua-(μ3-(E)-2-(4-((2-carbamothioylhydrazineylidene)methyl)phenoxy)acetato-κ3 O:S:S)sodium(I)], C10H14N3O5SNa
  36. The twinned crystal structure of [4,4′-bipyridine]-1,1′-diium hexachloridostannate(IV), C10H10N2SnCl6
  37. The crystal structure of [(2,2′-bipyridine-k2 N,N)-bis(6-phenylpyridine-2-carboxylate-k2 N,O)copper(II)], C34H24N4O4Cu
  38. Crystal structure of trans-1,2-bis(pyridinium-4-yl) ethylene bis(2-carboxy-4-bromobenzoate) – water (1/4), C14H14BrNO6
  39. Crystal structure of poly[diaqua-(μ3-fumarato)-(μ3-maleato)-(μ4-1,2,4,5-tetrakis((1H-1,2,4-triazol-1-yl)methyl)benzene)tetracadmium(II)] dihydrate, C34H32N12O9Cd4
  40. Crystal structure of a second modification of Pachypodol, C18H16O7
  41. Crystal structure of methyl 2-(4-(2-(cyclopentyl-amino)-1-(N-(4-methoxyphenyl)-1-methyl-5-phenyl-1-H-pyrazole-3-carboxamido)-2-oxoethyl)phenyl)acetate, C34H36N4O5
  42. The crystal structure of catena-poly[(m2-4,4′-bipyridine-κ2 N:N)-bis(6-phenylpyridine-2-carboxylato-κ2 N,O) zinc(II)], C34H24N4O4Zn
  43. The crystal structure of hexaquamagnesium(II) (2,4-bis(nitroimino)-6-oxo-1,3,5-triazinane-1,3-diide), C3H15MgN7O12
  44. The crystal structure of 7-Bromo-2-(4-chloro-phenyl)-quinoxaline, C14H9BrClN2
  45. Crystal structure of methyl 4-{[4-(4-cyanobenzamido)phenyl]amino}benzofuro[2,3-d]pyrimidine-6-carboxylate, C26H17N5O4
  46. The crystal structure of (4SR)-7-(3,4-dichlorobenzyl)-4,8,8-trimethyl-7,8-dihydroimidazo[5,1c][1,2,4]triazine-3,6(2H,4H)-dione, C15H16Cl2N4O2
  47. Crystal structure of catena-poly[{μ2-3-carboxy-2,3-bis((4-methylbenzoyl)oxy)propanoato-κ2 O:O′}tris(methanol-κ1 O)lanthanum(III)], C63H63LaO27
https://doi.org/10.1515/ncrs-2022-0003
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Articles in the same Issue

  1. Frontmatter
  2. New Crystal Structures
  3. Crystal structure of {2,2′-{cyclohexane-1,2-diylbis[(azanylylidene)methylylidene]}bis(2,4-dibromophenolato)-κ4 N,N′,O,O′}copper(II) ─ diethylformamide (1/1), C23H23Br4CuN3O3
  4. The crystal structure of 2-(2-methyl-6-phenyl-4H-pyran-4-ylidene)-1H-indene-1,3(2H)-dione, C21H14O3
  5. Crystal structure of bis((1-methylbenzimidazol-2-yl)methyl)amine, C18H19N5
  6. Crystal structure of (E)-N′-(1-(2-hydroxy-4-methoxyphenyl)ethylidene) isonicotinohydrazide, C15H15N3O3
  7. Crystal structure of 2-((4-phenyl-5-(pyridin-4-yl)-4H-1,2,4-triazol-3-yl)thio)acetonitrile, C15H11N5S
  8. The crystal structure of 2,2′-((1E,1′E)-hydrazine-1,2-diylidenebis(methaneylylidene))bis(4-chlorophenol), C14H10Cl2N2O2
  9. Dichlorido-{2,6-bis(4,5-dihydro-1H-pyrazol-3-yl)pyridine-κ3 N,N′,N″}zinc(II), C11H9C12N5Zn
  10. The crystal structure of dichlorido-(2-((4-phenyl-2H-1,2,3-triazol-2-yl)methyl)pyridine-κ2N,N′)palladium(II), C14H12Cl2N4Pd
  11. The crystal structure of 1-(N1-benzyl-2-methyl-4-nitro-imidazol-5-yl)-4-(prop-2-yn-1-yl) piperazine, C18H21N5O2
  12. Crystal structure of (μ4-(1,2,4,5-tetra(1,2,4-triazol-1-ylmethyl)-benzene-κ4N:N1:N2:N3)disilver(I) diperchlorate
  13. The crystal structure of 1-(2-bromoethane)-4-amine-3,5-dinitropyrazole, C5H6Br1N5O4
  14. Crystal structure of (E)-1-(4-benzyl-3,5-dioxomorpholin-2-ylidene)ethyl acetate, C15H15N1O5
  15. The crystal structure of poly[diaqua-(μ2-1,2,4,5-tetrakis(1,2,4-triazol-1-ylmethyl)-benzene-κ2N:N′)-bis(μ3-terephthalato-κ3O:O′:O′′)dicadmium(II)], C17H15N6O5Cd
  16. Crystal structure of (E)-N′-(1-(5-chloro-2-hydroxyphenyl) ethylidene)thiophene-2-carbohydrazide, C13H11ClN2O2S
  17. The crystal structure of [(2,2′-bipyridine-k2 N,N)-bis(6-phenylpyridine-2-carboxylato-k2 N,O)cobalt(II)]-monohydrate, C36H26N4O5Co
  18. Crystal structure of (E)-N′-(2-chloro-6-hydroxybenzylidene)-3-hydroxybenzo-hydrazide monohydrate, C14H13ClN2O4
  19. Crystal structure of 1,1′-(methylene)bis(pyridin-1-ium) bis(1,2-dicyanoethene-1,2-dithiolato-κ2S:S)nickel(II), C42H30N14Ni2S8
  20. Crystal structure of 1,1′-(1,2-ethanediyl)bis(pyridin-1-ium) bis(1,2-dicyanoethene-1,2-dithiolato-κ2 S:S)nickel(II), C20H14N6NiS4
  21. The crystal structure of 1-methyl-1H-pyrazol-2-ium nitrate, C4H7O3N3
  22. The crystal structure of 4,4′-diselanediylbis(8-(hexyloxy)-3,6-dimethyl-1-(piperidin-1-yl)isoquinoline-7-carbonitrile), C46H60N6O2Se2
  23. The crystal structure of tris(6-methylpyridin-2-yl)phosphine selenide, C18H18N3PSe
  24. The crystal structure of 1,2-bis(2,4-dinitro-1H-imidazol-1-yl)ethane ─ acetone (1/1), C11H12N8O9
  25. Crystal structure of [diaqua[2,2′-(1,2-phenylene)bis(1H-imidazole-4-carboxylato-5-carboxy)-κ4N,N′,O,O′]nickel(II)] tetrahydrate, C16H12N4NiO10·4H2O
  26. The crystal structure of tris(4-methyl-1H-pyrazol-1-yl)methane, C13H16N6
  27. The crystal structure of 5,6-dichloro-2-(quinolin-8-yl)isoindoline-1,3-dione, C17H8Cl2N2O2
  28. Crystal structure of (E)-(2-methoxy-benzylidene)-(4-[1,2,4]triazol-1-yl-phenyl)-amine, C16H14N4O
  29. The crystal structure of (Z)-2-(4-(4-bromophenyl)thiazol-2-yl)-4-(3-hydroxybut-2-enoyl)-5-methyl -1,2-dihydro-3H-pyrazol-3-one – methanol (1/1), C18H18N3O4S
  30. Crystal structure of tetraaqua-tris(nitrato-κ2 O,O′) erbium(III) monohydrate, Er(NO3)3·5H2O, H10ErN3O14
  31. The crystal structure of 1-methyl-2-nitro-1H-imidazole 3-oxide, C4H5N3O3
  32. The crystal structure of 1-methyl-2-nitroimidazole, C4H5N3O2
  33. The crystal structure of 2-carboxyl-4-nitroimidazole monohydrate, C4H5N3O5
  34. Crystal structure of bis[hydrido-hexaphenylcarbodiphosphoran][tetra-trifluoromethyl-(μ-diiodo)-diplatinat]
  35. The crystal structure of poly[μ2-aqua- aqua-(μ3-(E)-2-(4-((2-carbamothioylhydrazineylidene)methyl)phenoxy)acetato-κ3 O:S:S)sodium(I)], C10H14N3O5SNa
  36. The twinned crystal structure of [4,4′-bipyridine]-1,1′-diium hexachloridostannate(IV), C10H10N2SnCl6
  37. The crystal structure of [(2,2′-bipyridine-k2 N,N)-bis(6-phenylpyridine-2-carboxylate-k2 N,O)copper(II)], C34H24N4O4Cu
  38. Crystal structure of trans-1,2-bis(pyridinium-4-yl) ethylene bis(2-carboxy-4-bromobenzoate) – water (1/4), C14H14BrNO6
  39. Crystal structure of poly[diaqua-(μ3-fumarato)-(μ3-maleato)-(μ4-1,2,4,5-tetrakis((1H-1,2,4-triazol-1-yl)methyl)benzene)tetracadmium(II)] dihydrate, C34H32N12O9Cd4
  40. Crystal structure of a second modification of Pachypodol, C18H16O7
  41. Crystal structure of methyl 2-(4-(2-(cyclopentyl-amino)-1-(N-(4-methoxyphenyl)-1-methyl-5-phenyl-1-H-pyrazole-3-carboxamido)-2-oxoethyl)phenyl)acetate, C34H36N4O5
  42. The crystal structure of catena-poly[(m2-4,4′-bipyridine-κ2 N:N)-bis(6-phenylpyridine-2-carboxylato-κ2 N,O) zinc(II)], C34H24N4O4Zn
  43. The crystal structure of hexaquamagnesium(II) (2,4-bis(nitroimino)-6-oxo-1,3,5-triazinane-1,3-diide), C3H15MgN7O12
  44. The crystal structure of 7-Bromo-2-(4-chloro-phenyl)-quinoxaline, C14H9BrClN2
  45. Crystal structure of methyl 4-{[4-(4-cyanobenzamido)phenyl]amino}benzofuro[2,3-d]pyrimidine-6-carboxylate, C26H17N5O4
  46. The crystal structure of (4SR)-7-(3,4-dichlorobenzyl)-4,8,8-trimethyl-7,8-dihydroimidazo[5,1c][1,2,4]triazine-3,6(2H,4H)-dione, C15H16Cl2N4O2
  47. Crystal structure of catena-poly[{μ2-3-carboxy-2,3-bis((4-methylbenzoyl)oxy)propanoato-κ2 O:O′}tris(methanol-κ1 O)lanthanum(III)], C63H63LaO27
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