Startseite Crystal structure of (3E,5E)-1-(4-cyanobenzenesulfonyl)-3,5-bis(3-fluorobenzylidene)piperidin-4-one-dichloromethane (1/1), C27H20Cl2F2N2O3S
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Crystal structure of (3E,5E)-1-(4-cyanobenzenesulfonyl)-3,5-bis(3-fluorobenzylidene)piperidin-4-one-dichloromethane (1/1), C27H20Cl2F2N2O3S

  • Zhong-Fei Gao , Lei Wang ORCID logo , Gui-Ge Hou ORCID logo und Chun-Hua Wang EMAIL logo
Veröffentlicht/Copyright: 10. September 2021

Abstract

C27H20Cl2F2N2O3S, triclinic, P 1 (no. 2), a = 8.7887(4) Å, b = 11.2517(6) Å, c = 13.7609(7) Å, α = 74.962(4)°, β = 81.084(4)°, γ = 71.259(4)°, V = 1240.68(11) Å3, Z = 2, R gt (F) = 0.0582, wR ref (F2) = 0.1543, T = 100.0(1) K.

CCDC no.: 2104569

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: 0.15 × 0.13 × 0.11 mm
Wavelength: Mo Kα radiation (0.71073 Å)
μ: 0.40 mm−1
Diffractometer, scan mode: SuperNova
θmax, completeness: 29.6°, >99%
N(hkl)measured, N(hkl)unique, Rint: 11,635, 5784, 0.033
Criterion for Iobs, N(hkl)gt: Iobs > 2 σ(Iobs), 4418
N(param)refined: 350
Programs: CrysAlisPRO [1], SHELX [2, 3]
Table 2:

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

Atom x y z Uiso*/Ueq
C1 0.1551 (3) 0.9503 (2) 0.0751 (2) 0.0231 (5)
H1A 0.053606 0.946082 0.113060 0.028*
H1B 0.138444 1.035979 0.032045 0.028*
C2 0.2801 (3) 0.9266 (2) 0.14703 (19) 0.0211 (5)
C3 0.4535 (3) 0.8806 (2) 0.11010 (19) 0.0224 (5)
C4 0.4932 (3) 0.8431 (2) 0.01056 (19) 0.0216 (5)
C5 0.3562 (3) 0.8590 (3) −0.05079 (19) 0.0229 (5)
H5A 0.337563 0.940722 −0.099644 0.027*
H5B 0.387138 0.791133 −0.087740 0.027*
C6 0.2456 (3) 0.9336 (2) 0.2438 (2) 0.0232 (5)
H6 0.333216 0.913422 0.281584 0.028*
C7 0.0857 (3) 0.9695 (2) 0.2973 (2) 0.0238 (5)
C8 −0.0427 (3) 1.0723 (2) 0.2554 (2) 0.0262 (6)
H8 −0.029744 1.123116 0.191414 0.031*
C9 −0.1893 (3) 1.0961 (3) 0.3118 (2) 0.0336 (7)
C10 −0.2155 (4) 1.0239 (3) 0.4065 (3) 0.0407 (8)
H10 −0.316448 1.041989 0.441692 0.049*
C11 −0.0890 (4) 0.9245 (3) 0.4474 (2) 0.0413 (8)
H11 −0.103849 0.874866 0.511599 0.050*
C12 0.0604 (4) 0.8970 (3) 0.3947 (2) 0.0315 (6)
H12 0.145164 0.829689 0.424156 0.038*
C13 0.6496 (3) 0.7909 (2) −0.0172 (2) 0.0224 (5)
H13 0.722333 0.782780 0.028225 0.027*
C14 0.7205 (3) 0.7452 (2) −0.1090 (2) 0.0232 (5)
C15 0.8672 (3) 0.6468 (2) −0.1046 (2) 0.0285 (6)
H15 0.916736 0.611916 −0.044300 0.034*
C16 0.9377 (3) 0.6020 (3) −0.1897 (3) 0.0334 (7)
C17 0.8708 (4) 0.6518 (3) −0.2816 (2) 0.0354 (7)
H17 0.920296 0.620270 −0.338356 0.043*
C18 0.7281 (4) 0.7500 (3) −0.2858 (2) 0.0341 (7)
C19 0.6523 (3) 0.7978 (3) −0.2023 (2) 0.0277 (6)
H19 0.556304 0.864538 −0.207821 0.033*
C20 0.3020 (3) 0.6245 (2) 0.15259 (18) 0.0201 (5)
C21 0.2511 (3) 0.6259 (2) 0.25291 (19) 0.0240 (5)
H21 0.146134 0.671444 0.270636 0.029*
C22 0.3575 (3) 0.5591 (2) 0.3264 (2) 0.0259 (6)
H22 0.324655 0.558935 0.393970 0.031*
C23 0.5147 (3) 0.4918 (2) 0.29827 (19) 0.0238 (5)
C24 0.5653 (3) 0.4900 (2) 0.1975 (2) 0.0241 (5)
H24 0.669891 0.443777 0.179727 0.029*
C25 0.4586 (3) 0.5575 (2) 0.12419 (19) 0.0221 (5)
H25 0.491249 0.558129 0.056509 0.026*
C26 0.6296 (4) 0.4243 (3) 0.3735 (2) 0.0301 (6)
C27 0.7397 (4) 0.7305 (3) 0.3522 (2) 0.0403 (8)
H27A 0.764444 0.810790 0.321723 0.048*
H27B 0.727871 0.693610 0.298449 0.048*
Cl1 0.55934 (10) 0.76047 (12) 0.42894 (7) 0.0659 (3)
Cl2 0.89824 (9) 0.62350 (7) 0.42406 (6) 0.0384 (2)
F1 −0.3130 (2) 1.19405 (18) 0.27309 (15) 0.0469 (5)
F2a 1.0812 (4) 0.5073(3) −0.1850 (3) 0.0429 (10)
H18a 0.687 (11) 0.775 (9) −0.349 (3) 0.052*
F2′b 0.6617 (8) 0.8121 (6) −0.3704 (4) 0.0425 (18)
H16b 1.027 (11) 0.531 (9) −0.173 (11) 0.051*
N1 0.2053 (2) 0.8547 (2) 0.01211 (15) 0.0203 (4)
N2 0.7232 (3) 0.3712 (2) 0.43143 (19) 0.0394 (6)
O1 0.5608 (2) 0.87332 (18) 0.16111(13) 0.0270(4)
O2 0.0085 (2) 0.74401 (18) 0.10387(14) 0.0279(4)
O3 0.2126 (2) 0.65024 (18) −0.02404 (14) 0.0279 (4)
S1 0.16951 (7) 0.71565 (6) 0.05705 (5) 0.02108 (16)
  1. aOccupancy: 0.643(5), bOccupancy: 0.357(5).

Source of material

The title compound was obtained by the Claisen–Schmidt condensation of 4-piperidone and the appropriate aldehyde [4]. A mixture of 4-piperidone hydrochloride (0.68 g, 5 mmol), and 3-fluorobenzaldehyde (1.24 g, 10 mol) was dissolved in acetic acid (10 mL). The reaction was catalyzed by dry hydrogen chloride for 45 min. Then, the mixture was stirred continually at room temperature and monitored by thin layer chromatography (TLC). After the end of reaction, the solvent was removed by filtration and the residue was redissolved in water. The solution was adjusted to a neutral pH value with saturated Na2CO3 solution. Yellow precipitates were obtained and purified by silica gel column chromatography (methanol/petroleum ether/ethyl acetate = 1:10:10, v/v/v). The intermediate product (3,5-bis(3-fluorobenzylidene)piperidin-4-one) was dissolved in dichloromethane (100 mL). 4-Cyanobenzene-sulfonyl chloride (0.98 g, 5 mmol) and three drops of pyridine were added to the above solution. The mixture was stirred at room temperature (monitored by TLC). After 10 h, the reaction solution was concentrated under reduced pressure. The yellow solid was washed twice by distilled water and recrystallized from dichloromethane/methanol (1:1, v/v). Crystals were obtained by slow evaporation from the solution of dichloromethane and methanol (1:1, v/v) at room temperature.

Experimental details

The H atoms were positioned geometrically and treated as riding on their parent atoms, with d (C–H) = 0.97 Å (methylene) and Uiso(H) = 1.2Ueq(C); d(C–H) = 0.93 Å (aromatic) and Uiso(H) = 1.2Ueq(C).

Comment

As one of the most widespread tumors, colorectal cancer has become the second leading cause of death among all cancers [5]. The low incidence of colorectal cancer in South and Southeast Asia receives intensive attention. It was found that curcumin was generally utilized as an element of dietary supplements in those countries. Curcumin, known as 1,7-bis(4-hydroxy-3-meth-oxyphenyl)hepta-1,6-diene-3,5-dione, is a lipophilic polyphenol from the rhizome of Curcuma longa [6]. Due to the pharmacophore of α, β-unsaturated ketone, curcumin can work as anti-inflammatory, antibacterial and anti-oxidant agent [7, 8]. However, poor aqueous solubility, rapid metabolic degradation and low bioavailability limit its therapeutic usage. In order to ameliorate these defects, structural modification based on curcumin was necessary and large amounts of curcumin analogs have been synthesized. For example, 3,5-bis(arylidene)-4-piperidone derivatives exhibited anticancer, antioxidant and anticholinesterase properties [9]. 4-Boc-piperidone chalcones have the potential against highly-metastatic cancer cells [10]. 3,5-Bis(3-alkylamino-methyl-4-hydroxybenzylidene)-4-piperidones can be considered as a novel class of potent tumor-selective cytotoxins [11]. The 1,5-diaryl-3-oxo-1,4-pentadienyl pharmacophor of these curcumin analogs has a selective affinity for cellular thiols with little or no affinity for hydroxyl and amino groups in nucleic acids [12]. In the previous study, it was found that 3,5-bis(arylidene)-4-piperidones bearing strong electron-withdrawing substituents in the aromatic rings possess moderate antitumor properties [13]. Additionally, it was reported that many compounds containing phenylsulfonyl moiety had significant anti-inflammatory activity [14, 15]. Based on the above consideration, the title compound was synthesized by Claisen–Schmidt condensation reaction and N-benzenesulfonylation reaction.

X-ray crystallographic analysis shows that there are a 3,5-bis(arylidene)-4-piperidinone molecule and a dichloromethane in the asymmetric unit (cf. the figure). For clarity, the responding solvent molecule was omitted. All bond lengths and bond angles are all in the close agreement with those values reported previously [16], [17], [18], [19], [20]. In the title molecule, the 3-fluorobenzylidene moieties are symmetrically arranged on the both sides of the central piperidone scaffold. Due to the arrangement of the aromatic rings and carbonyl group around the C=C olefinic bonds, the title compound adopts the E stereochemistry. The piperidone ring shows a half-chair conformation, which can be attributed to the conjugated relationship of the carbonyl group with adjacent double bonds. Due to the rotation of C6–C7 and C13–C14 single bonds, the aromatic rings and the carbonyl group of the central piperidone are co-planar to each other. The dihedral angles between them are 55.24(13) and 34.60(18)°, respectively. For the further observation, it was found that the dihedral angle between the fluorophenyl rings is 38.40(9)°. The N-phenylsulfonyl substituent of the title molecule is extended in the direction of the carbonyl group, which can be attributed to the π–π interaction between the benzene ring of the phenylsulfonyl moiety and the carbonyl group. No classic hydrogen bonds were found in the crystal, but solvent CH2Cl2 molecules are connected to 3,5-bis(arylidene)-4-piperidinone molecules through weak C27–H27B⋯O1 hydrogen bonds. It’s worth noting that the heterocycle piperidonyl moiety and peripheric heteroatoms (such as N and F can serve as the potential hydrogen bonding donor/acceptor to improve binding affinity of target protein. Therefore, molecules containing these fragments may exhibit potential biological activity in the aspect of anticancer, anti-bacterial and antifungal activities [21].


Corresponding author: Chun-Hua Wang, School of Pharmacy, The Key Laboratory of Prescription Effect and Clinical Evaluation of State Administration of Traditional Chinese Medicine of China, Binzhou Medical University, Yantai, 264003, P. R. China, E-mail:

Funding source: Project of the Shandong Province Higher Educational Science and Technology Program 10.13039/501100015642

Award Identifier / Grant number: J18KA092

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

  2. Research funding: This work was supported by the Project of the Shandong Province Higher Educational Science and Technology Program (No. J18KA092).

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

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Received: 2021-07-24
Accepted: 2021-09-20
Published Online: 2021-09-10
Published in Print: 2021-12-20

© 2021 Zhong-Fei Gao et al., published by De Gruyter, Berlin/Boston

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

Artikel in diesem Heft

  1. Frontmatter
  2. New Crystal Structures
  3. Redetermination of the crystal structure of 3-bromonitrobenzene at 200 K, C6H4BrNO2 – temperature effects on cell constants
  4. Crystal structure of (E)-ethyl 2-((4-oxo-4H-chromen-3-yl)methyleneaminooxy)acetate, C14H13NO5
  5. Crystal structure of (8R,10R,14R, Z)-2-((3–Fluoropyridin-4-yl) methylene)-12-hydroxy-4,4,8,10,14-pentamethyl-17-((R)-2,6, 6-trimethyltetrahydro-2H-pyran-2-yl) hexadecahydro-3H-cyclopenta[a] phenanthren-3-one, C36H52FNO3
  6. Crystal structure of [6,6′-((1E,1′E)-(propane-1,3- diylbis(azaneylylidene))bis(methaneylylidene)) bis(3-chlorophenol)-κ4N,N′,O,O′] copper(II), C17H14Cl2CuN2O2
  7. The crystal structure of 6-amino-2-carboxypyridin-1-ium bromide, C6H7BrN2O2
  8. Redetermination of the crystal structure of bis[N,N′-ethylenebis(acetylacetoniminato)nickel(II)] sodium perchlorate, C24H36ClN4NaNi2O8
  9. The crystal structure of 3-methyl-2,6-dinitrophenol, C7H6N2O5
  10. The crystal structure of 5-chloro-2-(quinolin-8-yl)isoindoline-1,3-dione, C17H9ClN2O2
  11. Crystal structure of trans-tetraaqua-bis{2-carboxy-4-((5-carboxypyridin-3-yl)oxy)benzoato-κ1 N}cobalt(II) dihydrate C28H28O20N2Co
  12. Crystal structure of 3-allyl-4-(2-bromoethyl)-5-(4-methoxyphenyl)-2-(p-tolyl)furan, C23H23BrO2
  13. The crystal structure of 6,6′-(((2-(dimethylamino)ethyl)azanediyl)bis(methylene))bis(benzo[d][1,3]dioxol-5-ol ato-κ4N,N′,O,O′)-(pyridine-2,6-dicarboxylato-N,O,O′)-titanium(IV)-dichloromethane(1/1), C27H25N3O10Ti
  14. Crystal structure of (((1E,1′E)-1,2-phenylenebis(methaneylylidene))bis(hydrazin-1-yl-2-ylidene))bis(aminomethaniminium) dinitrate C10H16N10O6
  15. Crystal structure of catena-poly[triaqua-(μ 2-1,3-di(1H-imidazol-1-yl)propane-κ 2 N:N′)-(4,4′-(1H-1,2,4-triazole-3,5-diyl)dibenzoato-κ 1 O)nickel(II)]N,N′-dimethylformamide (1/1), C28H35N8O8Ni
  16. The crystal structure of 3,3′-[1,4-phenylenebis(methylene)]bis(1-ethenyl-1H-imidazol-3-ium) dichloride – dichloromethane – water (1/1/1), C19H24Cl4N4O1
  17. Crystal structure of 1,1′-(methane-1,1-diyl)bis(3-propyl-1H-imidazol-3-ium) bis(hexafluoridophosphate), C13H22F12N4P2
  18. Crystal structure of dichlorido-bis(4-chlorophenyl-κC 1)tin(IV), C12H8Cl4Sn
  19. Synthesis and crystal structure of 4-acetylpyrene, C18H12O
  20. Crystal structure of 2,2′-(butane-1,4-diylbis(azanylylidene))bis(methanylylidene))bis(4-methoxyphenol), C20H24N2O4
  21. The crystal structure of (E)-2-(((5-((triphenylstannyl)thio)-1,3,4-thiadiazol-2-yl)imino)methyl)phenol, C27H21N3OS2Sn
  22. Crystal structure of diaqua-bis(μ2-6-phenylpyridine-2-carboxylate-κ3N,O:O)-bis(6-phenylpyridine-2-carboxylato-κ2N,O)lead(II) – N,N-dimethylformamide – water (1/2/4), C54H58N6O16Pb2
  23. Crystal structure of methyl 4-acetoxy-3-methoxybenzoate, C11H12O5
  24. Crystal structure of 2,2′-(propane-1,3-dilylbis(azaneylylidene))bis(methanylylidene)bis(4-methylphenol), C19H22N2O2
  25. Crystal structure of dichlorido-bis(4-methylphenyl-κC1)tin(IV), C14H14Cl2Sn
  26. Crystal structure of methyl (E)-3-(4-acetoxyphenyl)acrylate, C12H12O4
  27. The crystal structure of bis(benzoato-κ2 O,O′)-(2,9-dimethyl-1,10-phenanthroline-κ2 N,N′)-copper(II), C28H22CuN2O4
  28. Crystal structure of (8R,10R,14R,Z)-12-hydroxy-2-((6-methoxypyridin-2-yl)methylene)-4,4,8,10,14-pentamethyl-17-((R)-2,6,6-trimethyltetrahydro-2H-pyran-2-yl)hexadecahydro-3H-cyclopenta[a]phenanthren-3-one–water (2/1), C37H56NO4.5
  29. Crystal structure of dimethyl-bis(4-bromophenyl-κC1)tin(IV), C14H14Br2Sn
  30. The crystal structure of the cocrystal di-μ2-chlorido-octamethyl-di-μ3-oxido-bis(2,3,4,5-tetrafluorobenzoato-κ2 O,O′)tetratin(IV) ─ octamethyl-di-μ3-oxido-bis(μ2-2,3,4,5-tetrafluorobenzoato-κ2 O:O′)-bis(μ2-2,3,4,5-tetrafluorobenzoato-κ2 O:O;O′)tetratin(IV) C58H54Cl2F24O16Sn8
  31. Crystal structure of 3-iodo-N 2-(2-methyl-1-(methylsulfonyl)propan-2-yl)-N 1-(2-methyl-4-(perfluoropropan-2-yl)phenyl)phthalamide, C23H22F7I1N2O4S1
  32. Crystal structure of 1-(2-(4-bromophenyl)-2,3-dihydro-1H-benzo[e]indol-1-yl)-naphthalen-2-ol – dichloromethane – dimethyl sulfoxide (1/1/1), C28H18BrNO·CH2Cl2·C2H6SO
  33. Crystal structure of [meso-5,7,7,12,14,14,-hexamethyl-1,4,8,11-tetraazacyclotetradecane]nickel(II) diperchlorate – dimethylsulphoxide (1/2), C20H48Cl2N4NiO10S2
  34. Crystal structure of 1,1′-(1,3-phenylenebis(methylene))bis(pyridin-1-ium) bis(1,2-dicyanoethene-1,2-dithiolato-κ2 S:S) palladium(II), C26H18N6PdS4
  35. The crystal structure of bis(6-phenylpyridine-2-carboxylato-κ2 N,O)copper(II), C24H16N2O4Cu
  36. Crystal structure of dichlorido-bis(4-chlorophenyl-κC)-bis(triphenylarsine oxide-κO)tin(IV), C48H38As2Cl4O2Sn
  37. Crystal structure of (4,7,13,16,21,24-hexaoxa-1,10-diazabicyclo[8.8.8]hexacosane-κ 8 N 2, O 6) potassium cyclopentadienide, [K([2.2.2]crypt)]Cp, C23H41KN2O6
  38. The crystal structure of bis(2-oxidopyridin-1-ium-3-carboxylato-κ2O,O′)-(phenantroline-κ2N,N′)manganese(II) - methanol (1/3), C27H28N4O9Mn
  39. Crystal structure of 4-(dimethylamino)pyridinium dibromido-tris(4-chlorophenyl-κC)stannate(IV), C25H23Br2Cl3N2Sn
  40. Crystal structure of (3E,5E)-1-(4-cyanobenzenesulfonyl)-3,5-bis(3-fluorobenzylidene)piperidin-4-one-dichloromethane (1/1), C27H20Cl2F2N2O3S
  41. Crystal structure of (3E,5E)-3,5-bis(4-fluorobenzylidene)-1-((4-trifluoromethyl)benzenesulfonyl)piperidin-4-one, C26H18F5NO3S
  42. Crystal structure of chlorido-(4-methyl-2-((phenylimino)methyl)phenolato-κ2 N,O)-(pyridine-κ1 N)platinum(II), C19H17ClN2OPt
  43. Crystal structure of (4-methylbenzyl)(triphenyl)phosphonium chloride dihydrate, C26H28ClO2P
  44. The crystal structure of poly[μ2-chlorido-(μ2-1,2-bis(4-pyridyl)ethane-κ2N:N′silver(I)], C12H12AgClN2
  45. Crystal structure of poly[(μ4-benzene-1,2,4,5-tetracarboxylato)-bis(μ2-adipohydrazide)dicadmium], C11H15N4O6Cd
  46. The crystal structure of (E)-N′-(butan-2-ylidene)isonicotinohydrazide 0.5 hydrate C10H13N3O·0.5H2O
  47. The crystal structure of bis(6-phenylpyridine-2-carboxylate-κ2 N,O)-(2,2′-bipyridine-κ2 N,N′)zinc(II) monohydrate, C34H26N4O5Zn
  48. The crystal structure of (1R *,2S *)-1,2-bis(2-fluorophenyl)-3,8-dimethoxyacenaphthene-1,2-diol, C26H20F2O4
  49. Crystal structure of catena-poly[(μ2-1-((2-ethyl-4-methyl-1H-imidazol-1-yl)methyl)-1H-benzotriazole-κ2N:N′)-(nitrato-κ2O,O′)silver (I)], C13H15Ag1N6O3
  50. The crystal structure of [(phenantroline-κ2 N,N′)-bis(6-phenylpyridine-2-carboxylate-κ2 N,O)cobalt(II)]monohydrate, C36H26N4O5Co
  51. Crystal structure of (1E)-N-[(1E)-1-(4-chlorophenyl)ethylidene]-2-[1-(4-chlorophenyl)ethylidene]hydrazine-1-carbohydrazonamide, C 17 H 17 Cl 2 N 5
  52. The crystal structure of (E)-2-((tert-butylimino)methyl)-4-chlorophenol, C11H14ClNO
  53. Crystal structure of all-cis-2,4,6-trihydroxycyclohexane- 1,3,5-triaminium chloride sulfate, C6H18ClN3O7S
  54. Crystal structure of dichlorido-bis(dimethyl sulfoxide-κO)bis(4-methylphenyl-κC 1)tin(IV), C18H26Cl2O2S2Sn
  55. Crystal structure of dichlorido-bis(4-chlorophenyl-κC 1)(2,2′-bipyridyl-κ 2 N,N′)tin(IV), C22H16Cl4N2Sn
  56. Redetermination of the crystal structure of (E)-5-bromo-2-hydroxybenzaldehyde oxime, C 7 H 6 BrNO 2
  57. The crystal structure of (E)-amino(2-(4-methylbenzylidene)hydrazineyl)methaniminium 4-methylbenzoate, C9H13N4 + C8H7O2
  58. Crystal structure of 2-chloro-3-(isopentylamino)naphthalene-1,4-dione, C 15 H 16 ClNO 2
  59. The crystal structure of bis(2-acetyl-5-methoxyphenyl)carbonate 1.5 hydrate, C19H18O7
  60. The crystal structure of poly[(μ 4-4,4′-(azanediylbis(methylene))dibenzoato-κ 4 O:N:O′:Oʺ)zinc(II)], C16H13NO4Zn
  61. The crystal structure of catena-poly[(1,10-phenanthroline-k2N,N′)-(μ3-tetraoxidomoybdato(VI)-k3O:O′:O″)manganese(II)] C12H8N2O4MoMn
  62. Crystal structure of catena-poly[(4-hydroxyl-5-(methoylcarbonyl)thiophene-2-carboxylato-κ1 O)-(μ2-piperazine-1,4-diylbis(pyridin-4-ylmethanone)-κ2 N:N′)silver(I)] monohydrate, C23H23AgN4O8S
  63. Crystal structure of bis(4-bromo-2-(((3-bromopropyl)imino)methyl)phenolato-κ2N,O)-oxido-vanadium(IV), C20H20Br4N2O3V
  64. The crystal structure of (2a′S,2a1′S,3R,5a′S,7′R)-5-(furan-3-yl)-2a′,2a1′-dihydroxy-7′-methyldecahydro-2H-spiro[furan-3,6′-naphtho[1,8-bc]furan]-2,2′(2a′H)-dione, C19H22O7
  65. The crystal structure of 3-bromopicolinic acid, C6H4BrNO2
  66. Crystal structure of 1,1′-(1,4-phenylenebis(methylene))bis(pyridin-1-ium) bis(1,2-dicyanoethene-1,2-dithiolato-κ2 S,S) platinum(II), C26H18N6PtS4
  67. Synthesis and crystal structure of 5-(8-((3-carboxyazetidin-1-ium-1-yl)methyl)-7-hydroxy-4-oxo-4H-chromen-3-yl)-2-hydroxybenzenesulfonate monohydrate, C20H19NO10S
  68. The crystal structure of 3-amino-5-carboxypyridin-1-ium bromide, C6H7BrN2O2
  69. The crystal structure of (2-hydroxy-5-methyl-phenyl)-(1H-pyrazol-4-yl)-methanone hemihydrate, C11H10.5N2O2.5
  70. Crystal structure of tetraaqua-(2-(4-formylphenoxy)acetato-k1O)cadmium(II), C18H22O12Cd
  71. Crystal structure of diethyl 6,12-dimethyl-3,9-di-p-tolyl-3,9-diazapentacyclo[6.4.0.02,7.04,11.05,10]dodecane-1,5-dicarboxylate, C32H38N2O4
  72. Crystal structure of (E)-N′-(1-(3-chloro-4-fluorophenyl)ethylidene)-4-hydroxy – tetrahydrofuran (2/1), C17H16ClFN2O2.5
Heruntergeladen am 16.11.2025 von https://www.degruyterbrill.com/document/doi/10.1515/ncrs-2021-0299/html
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