Startseite Crystal structure of 8-bromo-6-oxo-2-phenyl-6H-pyrrolo[3,2,1-ij]quinoline-5-carbaldehyde, C18H11BrNO2
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Crystal structure of 8-bromo-6-oxo-2-phenyl-6H-pyrrolo[3,2,1-ij]quinoline-5-carbaldehyde, C18H11BrNO2

  • Marole M. Maluleka , Malose J. Mphahlele EMAIL logo und Eugene E. Onwu
Veröffentlicht/Copyright: 14. Juni 2019

Abstract

C18H11BrNO2, orthorhombic, Pbcn (no. 60), a = 20.745(2) Å, b = 6.7956(8) Å, c = 20.470(3) Å, V = 2885.8(6) Å3, Z = 8, Rgt(F) = 0.034, wRref(F2) = 0.0846, T = 173(2) K.

CCDC no.: 1905612

The crystal structure 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:Orange block
Size:0.33 × 0.23 × 0.21 mm
Wavelength:Mo Kα radiation (0.71073 Å)
μ:2.86 mm−1
Diffractometer, scan mode:Bruker D8, ω-scans
θmax, completeness:25.5°, >99%
N(hkl)measured, N(hkl)unique, Rint:38588, 2679, 0.050
Criterion for Iobs, N(hkl)gt:Iobs > 2 σ(Iobs), 2294
N(param)refined:199
Programs:Bruker programs [1], WinGX [2], SHELX [3], PLATON [4]
Table 2:

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

AtomxyzUiso*/Ueq
Br10.12347(2)0.55390(5)0.18357(2)0.03413(12)
N10.32690(10)0.4160(3)0.38247(10)0.0156(5)
O10.14270(10)0.3816(3)0.45174(10)0.0307(5)
O20.29123(11)0.3186(4)0.57954(10)0.0362(5)
C10.19774(13)0.3937(4)0.43012(13)0.0180(6)
C20.25529(13)0.3730(4)0.47096(13)0.0182(6)
C30.31659(13)0.3838(4)0.44683(13)0.0172(6)
H30.3522670.3686520.4754840.021*
C40.27517(12)0.4434(4)0.34148(13)0.0159(5)
C50.21142(12)0.4332(4)0.36048(13)0.0166(5)
C60.16561(14)0.4660(4)0.31142(14)0.0213(6)
H60.1208480.4605440.3210270.026*
C70.18660(14)0.5064(4)0.24899(14)0.0223(6)
C80.25136(14)0.5195(4)0.23043(13)0.0219(6)
H80.2633280.549060.1867160.026*
C90.29749(13)0.4877(4)0.27853(13)0.0190(6)
C100.36696(13)0.4883(4)0.28292(14)0.0217(6)
H100.395750.5154820.2479690.026*
C110.38449(12)0.4438(4)0.34528(14)0.0195(6)
C120.44807(13)0.4253(4)0.37594(13)0.0210(6)
C130.49394(14)0.5716(4)0.36522(15)0.0284(7)
H130.4837440.681560.3384960.034*
C140.55435(14)0.5567(5)0.39352(16)0.0327(7)
H140.5857260.6560480.3861450.039*
C150.56885(14)0.3966(5)0.43255(15)0.0290(7)
H150.6101920.3873880.4522680.035*
C160.52415(14)0.2508(5)0.44317(15)0.0284(7)
H160.5348230.140910.469750.034*
C170.46345(13)0.2640(4)0.41506(14)0.0236(6)
H170.4324570.1635360.422450.028*
C180.24742(15)0.3436(4)0.54193(13)0.0249(6)
H180.2048690.3444390.5590910.03*

Source of material

To a three necked round-bottom flask equipped with a stirrer bar, condenser and rubber septa was added in sequence 6-bromo-8-iodo-4-oxo-1,4-dihydroquinoline-3-carbaldehyde (0.50 g, 1.32 mmol), PdCl2(PPh3)2 (0.04 g, 0.66 mmol), CuI (0.02 g, 0.13 mmol), Cs2CO3 (0.51 g, 1.58 mmol) and dioxane (20 mL). The mixture was purged with nitrogen gas for 20 minutes and a balloon filled with nitrogen gas was connected to the top of the condenser. Phenylacetylene (0.20 g, 1.98 mmol) was added via syringe and the mixture was heated at 80 °C under inert atmosphere for 6 h. The mixture was quenched with an ice-cold water and the product was extracted with chloroform. The combined organic solutions were washed with brine and dried over anhydrous MgSO4. The salt was filtered off and the solvent was evaporated under reduced pressure. The residue was purified by column chromatography on silica gel using toluene as an eluent and then recrystallized from chloroform to afford 8-bromo-6-oxo-2-phenyl-6H-pyrrolo[3,2,1-ij]quinoline-5-carbaldehyde as a solid (0.25 g, 58%); m.p. 224–225 °C; IR: νmax (ATR) 545, 769, 876, 933, 1067, 1170, 1295, 1353, 1488, 1590, 1638, 1683 cm−1; 1H-MNR: δH (500 MHz, CDCl3) 7.20 (1H, s, = CH), 7.62 (1H, t, J = 8.5 Hz), 7.66 (2H, d, J = 9.0 Hz), 7.76 (2H, d, J = 8.5 Hz, Ar), 8.07 (1H, J = 1.5 Hz, H-5), 8.29 (1H, d, J 1.5 Hz, H-7), 8.57 (1H, s, CHO) 10.1 (1H, s, NH); 13C-NMR: δC (125 MHz, CDCl3) 111.0, 114.3, 119.8, 121.2, 124.1, 124.9, 127.8, 128.0, 129.8, 130.6, 132.1, 134.7, 139.9, 142.8, 176.9, 189.3; HRMS (ES): found 352.9874. C18H11NO279Br requires 352.9874.

Experimental details

Intensity data was determined on a Bruker Venture D8 Photon CMOS diffractometer with graphite-monochromated MoKα1 (λ 0.71073 Å) radiation at 173 K using an Oxford Cryostream 600 cooler. Data reduction was carried out using the program SAINT+, version 6.02 [1] and face-indexed [1] absorption corrections were made using the program XPREP [1]. Space group assignments was made using XPREP [1]. The structure was solved in the WinGX [2] Suite of programs, using direct methods through using SHELXS [3] and refined using full-matrix least-squares/difference Fourier techniques on F2 using SHELXL [3]. All hydrogen atoms were placed at idealized positions and refined as riding atoms with isotropic parameters 1.2 times those of their parent atoms. Diagrams and publication material were generated using ORTEP-3 [2], and PLATON [4].

Discussion

Multisubstituted pyrrolo[3,2,1-ij]quinolines exhibit wide range of biological properties including analgesic, anti-pyretic, anti-inflammatory, antiviral, anticonvulsant and antimitotic properties and some derivatives have also found application in agriculture as antibacterial and antifungal agents against the diseases of rice plants [5], [6], [7], [8], [9], [10]. Non-conventional approach towards these compounds involve the use of transition metal catalysed tandem Sonogashira cross-coupling of 8-halogenated quinolin-4-one or quinoline scaffold with terminal acetylene and subsequent cycloisomerization of the intermediate 8-alkynylated derivative to append a five membered ring [11], [12], [13], [14], [15], [16]. Chloromethyleneiminium salt commonly known as the Vilsmeier-Haack (V—H) reagent has been employed extensively in the formylation, cyclization and ring annulation reactions [16]. The Vilsmeier reaction of 2-aminoacetophenone has previously been shown to afford 4-chloroquinoline-3-carbaldehyde, which upon acid-mediated hydrolysis afforded the 4-oxoquinoline-3-carbaldehyde derivatives [17]. This reagent has also been used before to convert 8-methyl-2-phenyl-4H-pyrrolo[3,2,1-ij]quinolin-6(5H)-one into 6-chloro-8-methyl-2-phenyl-4H-pyrrolo[3,2,1-ij]quinoline-1,5-dicarbaldehyde [13]. In this investigation, 2-amino-5-bromo-3-iodoacetophenone was subjected to the Vilsmeier-Haack reaction followed by acid-mediated hydrolysis of the intermediate 6-bromo-4-chloro-8-iodoquinoline-3-carbaldehyde to afford 5-bromo-4-chloro-8-iodo-4-oxoquinoline-3-carbaldehyde. This mixed dihalogenated quinolinone derivative was found to undergo Sonogashira cross-coupling via Csp2–I substitution to afford 8-bromo-6-oxo-2-phenyl-6H-pyrrolo[3,2,1-ij]quinoline-5-carbaldehyde.

Single crystals of the title compound suitable for X-ray analysis were obtained by slow evaporation of chloroform and the structure of the compound was distinctly confirmed by single crystal X-ray diffraction (XRD) analysis. 8-Bromo-6-oxo-2-phenyl-6H-pyrrolo[3,2,1-ij]quinoline-5-carbaldehyde crystallizes in the Pbcn space group, and the asymmetric unit contains one molecule of the compound. The crystal structure reveals that the pyrroloquinolinone moiety is planar with the 2-aryl group twisted out of plane [torsion angles: N(1)—C(11)—C(12)—C(17) = 48.7(4)° or C(10)—C(11)—C(12)—C(13) = 47.3(5)°]. Oxygen atom of the 5-carbaldehyde group is in anti-orientation relative to the 6-oxo atom presumably to avoid electronic repulsion. The molecules are aligned in parallel planes and are held together by several intermolecular C—H⋯O and C—H⋯Br bond interactions and further stabilized by π⋯π stacking.

Acknowledgements

The authors are grateful to the University of South Africa and the National Research Foundation (NRF, SA) for financial assistance. The authors also thank Prof A. Lemmerer of University of the Witwatersrand for X-ray diffraction data using the single-crystal diffractometer purchased through the NRF Equipment Programme (UID:78572).

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Received: 2019-04-10
Accepted: 2019-06-04
Published Online: 2019-06-14
Published in Print: 2019-09-25

©2019 Marole M. Maluleka et al., published by De Gruyter, Berlin/Boston

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

Artikel in diesem Heft

  1. Frontmatter
  2. Crystal structure of poly[diaqua-(μ8-1,1′:2′,1′′-terphenyl-3,3′′,4′,5′-tetracarboxylato-κ8O1:O2:O3:O4:O5:O6:O7:O8)dicopper(II)], C22H14Cu2O10
  3. Crystal structure of 2-((1H-benzo[d]imidazol-2-ylimino)methyl)-4,6-di-tert-butylphenol, C22H27N3O
  4. Crystal structure of (4-ethoxynaphthalen-1-yl)(furan-2-yl)methanone, C17H14O3
  5. Crystal structure of 1-nonylpyridazin-1-ium iodide, C13H23N2I
  6. Crystal structure of bis[diaqua(1,10-phenanthroline-κ2N, N′)-copper(II)]diphenylphosphopentamolybdate dihydrate, C36H38Cu2Mo5N4O27P2
  7. The crystal structure of tetrakis(imidazole)-copper(I) hexafluorophosphate, C12H16CuF6PN8
  8. The crystal structure of dimethyl ((3,5-di-tert-butyl-4-hydroxyphenyl)(phenyl)methyl)phosphonate, C23H33O4P
  9. Crystal structure of diaqua-bis(1,10-phenanthroline κ2N,N′)nickel(II) trifluoroacetate- trifluoroacetic acid (1/1), C30H21F9N4NiO8
  10. Crystal structure of 2-(naphthalen-2-yl)-1,8-naphthyridine, C18H12N2
  11. Synthesis and crystal structure of a new polymorph of diisopropylammonium trichloroacetate, C8H16Cl3NO2
  12. Crystal structure of dimethanol-bis(1-((2-methyl-1H-benzo[d]imidazol-1-yl)methyl)-1H-benzo[d][1,2,3]triazole-κN)-bis(thiocyanato-κN)cadmium(II) C34H34CdN12O2S2
  13. Crystal structure of ethyl 2,2-difluoro-2-(7-methoxy-2-oxo-2H-chromen-3-yl)acetate, C14H12F2O5
  14. The crystal structure of bis[μ2-(N,N-diethylcarbamodithioato-κSSS′)] bis[1′-(diphenylphosphino-κP)-1-cyanoferrocene]disilver(I), C56H56Ag2Fe2N4P2S4
  15. Crystal structure of bis(di-n-butylammonium) tetrachloridodiphenylstannate(IV), C28H50Cl4N2Sn
  16. The crystal structure of poly[(μ5-2-((5-bromo-3-formyl-2-hydroxybenzylidene)amino)benzenesulfonato-κ6O:O:O,O′:O′:O′′)sodium(I)], C13H9O4NSBrNa
  17. Crystal structure of catena-{poly[bis(O,O′-diethyldithiophosphato-S)-(μ2-1,2-bis(4-pyridylmethylene)hydrazine-N,N′)-zinc(II)] di-acetonitrile solvate}, {C20H30N4O4P2S4Zn ⋅ 2 C2H3N}n
  18. Halogen and hydrogen bonding in the layered crystal structure of 2-iodoanilinium triiodide, C6H7I4N
  19. Crystal structure of cyclohexane-1,4-diammonium 2-[(2-carboxylatophenyl)disulfanyl]benzoate — dimethylformamide — monohydrate (1/1/1), [C6H16N2][C14H8O4S2] ⋅ C3H7NO⋅H2O
  20. The synthesis and crystal structure of isobutyl 5-amino-1-(2,6-dichloro-4-(trifluoromethyl)phenyl)-4-((trifluoromethyl)sulfinyl)-1H-pyrazole-3-carboxylate, C16H13Cl2F6N3O3S
  21. Isolation and crystal structure of bufotalinin — methanol (1/1), C25H34O7
  22. Crystal structure of benzylbis(1,3-diphenylpropane-1,3-dionato-κ2O,O′) chloridotin(IV), C37H29ClO4Sn
  23. Crystal structure of Bis{1-[(benzotriazol-1-yl)methyl]-1-H-1,3-(2-methyl-imidazol)}diiodidocadmium(II), [Cd(C11H11N5)2I2], C22H22N10I2Cd
  24. Crystal structure of 4-isobutoxybenzaldehyde oxime, C11H15NO2
  25. The crystal structure of bis(acetato-κ1O)-bis(N′-hydroxypyrimidine-2-carboximidamide-κ2N,N′)manganese(II) — methanol (1/2), C14H18MnN8O6, 2(CH3OH)′
  26. Crystal structure of poly[bis(μ2-bis(4-(1H-imidazol-1-yl)phenyl)amine-κ2N:N′)-bis(nitrato-κO)cadmium(II)], C36H30CdN12O6
  27. Crystal structure and optical properties of 1,6-bis(methylthio)pyrene, C18H14S2
  28. The crystal structure of hexaquamagnesium(II) bis(3,4-dinitropyrazol-1-ide), C6H14MgN8O14
  29. Halogen bonds in the crystal structure of 4,3:5,4-terpyridine – 1,4-diiodotetrafluorobenzene (1/1), C21H11F4I2N3
  30. Crystal structure and photochromic properties of a novel photochromic perfluordiarylethene containing a triazole bridged pyridine group moiety, C24H18F6N4S2
  31. Crystal structure of bis[(μ3-oxido)-(μ2-(N,N-diisopropylthiocarbamoylthio) acetato-κ2O,O′)-((N,N-diisopropylthiocarbamoylthio)acetato-κO)-bis(di-4-methylbenzyl-tin(IV))], C100H136N4O10S8Sn4
  32. Crystal structure of dibromidobis(4-bromobenzyl)tin(IV), C14H12Br4Sn
  33. The crystal structure of (4Z)-2-[(E)-(1-ethyl-3,3-dimethyl-1,3-dihydro-2H-indol-2-ylidene)methyl]-4-[(1-ethyl-3,3-dimethyl-3H-indolium-2-yl)methylidene]-3-oxocyclobut-1-en-1-olate, C30H32N2O2
  34. The crystal structure of (E)-3-(4-(dimethylamino)styryl)-5,5-dimethylcyclohex-2-en-1-one, C18H23NO
  35. Crystal structure of dihydrazinium 1H-pyrazole-3,5-dicarboxylate, C5H12N6O4
  36. Crystal structure of poly[μ2-1,4-bis((1H-imidazol-1-yl)methyl)benzene-κ2N:N′)-(μ2-4-sulfidobenzoate-κ2O:S)cobalt(II)] dihydrate, C42H44Co2N8O7S2
  37. Crystal structure of 8-(3,4-dimethylbenzylidene)-6,10-dioxaspiro[4.5]decane-7,9-dione, C17H18O4
  38. Crystal structure of 4-(2-bromo-4-(6-morpholino-3-phenyl-3H-benzo[f]chromen-3-yl) cyclohexa-2,5-dien-1-yl)morpholine, C33H31BrN2O
  39. Synthesis and crystal structure of 2-((1-phenyl-3-(thiophen-2-yl)-1H-pyrazol-4-yl)methylene)-2,3-dihydro-1H-inden-1-one, C23H16N2OS
  40. Crystal structure of poly[(μ2-1,1′-(oxybis(4,1-phenylene)bis(1H-imidazole)-κ2N,N′)(μ2-1,3-benzenecarboxylato-κ3O,O′:O′′)zinc(II)] dihydrate, C26H22N4O7Zn
  41. Crystal structure of diaqua-bis(cinnamato-κ2O,O′)zinc(II), C18H18ZnO6
  42. Crystal structure of 2-(prop-2-yn-1-yloxy)-1-naphthaldehyde, C14H10O2
  43. Crystal structure and photochromic properties of 1-(2-methyl-5-phenyl-3-thienyl)-2-{2-methyl-5-[4-(9-fluorenone hydrazone)-phenyl]-3-thienyl}perfluorocyclopentene, C41H26F6N2S2
  44. Hydrothermal synthesis and crystal structure of cylo[tetraaqua-bis(μ2-1,4-bis(1H-benzo[d]imidazol-1-yl)but-2-ene-κ2N:N′)-bis(μ2-4-nitro-phthalate-κ2O,O′)dinickel(II)], C26H23N5O8Ni
  45. Crystal structure of 3-[methyl(phenyl)amino]-1-phenylthiourea, C14H15N3S
  46. Crystal structure of 1-(4-chlorophenyl)-3-[methyl(phenyl)amino]thiourea, C14H14ClN3S
  47. Crystal structure of 2-tert-butyl-1H-imidazo[4,5-b]pyridine, C10H13N3
  48. Crystal structure of 5-carboxy-2-(2-carboxyphenyl)-1H-imidazol-3-ium-4-carboxylate dihydrate, C12H8N2O6⋅2(H2O)
  49. The crystal structure of dichlorido-μ2-dichlorido-(η2-1,4-bis(4-vinylbenzyl)-1,4-diazabicyclo[2.2.2]octane-1,4-diium)dicopper(I), C24H30N2Cu2Cl4
  50. Crystal structure of 4-bromobenzyl (Z)-N-(adamantan-1-yl)morpholine-4-carbothioimidate, C22H29BrN2OS
  51. Crystal structure of (4S,4aS,6aR,6bR,12aS,12bR,14aS,14bR)-3,3,6a,6b,9,9,12a-heptamethyloctadecahydro-1H,3H-4,14b-ethanophenanthro[1,2-h]isochromene-1(6bH)-one, C30H48O2
  52. Crystal structure of 3,5-bis(trifluoromethyl)benzyl (Z)-N′-(adamantan-1-yl)-4-phenylpiperazine-1-carbothioimidate, C30H33F6N3S
  53. The crystal structure of 3-methoxyphenanthridin-6(5H)-one, C14H11NO2
  54. Crystal structure of 4-(5,5-difluoro-1,3,7,9-tetramethyl-3H,5H-5λ4-dipyrrolo[1,2-c:2′,1′-f][1,3,2]diazaborinin-10-yl)pyridin-1-ium tetraiodidoferrate(III), C18H19BF2FeI4N3
  55. Crystal structure of 2-(3-methoxyphenyl)-3-((phenylsulfonyl)methyl)imidazo[1,2-a]pyridine, C21H18N2O3S
  56. Crystal structure of [(2-(2-chlorophenyl)-5-ethyl-1,3-dioxane-5-carboxylato-κ2O,O′) (5,5,7,12,12,14-hexamethyl-1,4,8,11-tetraazacyclotetradecane-κ4N,N′,N′′,N′′′)]nickel(II) perchlorate, C29H50Cl2N4NiO8
  57. Crystal structure of (Z)-6-(dimethylamino)-3,3-bis(4-(dimethylamino)phenyl)-2-(2-(quinoxalin-2-ylmethylene)hydrazinyl)-2,3-dihydroinden-1-one, C35H35N7O
  58. 5-Methyl-N′-[5-methyl-1-(4-methylphenyl)-1H-1,2,3-triazole-4-carbonyl]-1-(4-methylphenyl)-1H-1,2,3-triazole-4-carbohydrazide, C22H22N8O2
  59. Crystal structure of 2,3-dichloro-6-methoxyquinoxaline, C9H6Cl2N2O
  60. Synthesis and crystal structure of 7-chloro-2-(ethylsulfinyl)-6-fluoro-3-(1H-pyrazole-1-yl)-4H-thiochromen-4-one, C13H10FN3OS2
  61. Crystal structure of 4-ethylpiperazine-1-carbothioic dithioperoxyanhydride, C14H26N4S4
  62. Crystal structure of 2-(2-(6-methylpyridin-2-yl)naphthalen-1-yl)pyrimidine, C20H15N3
  63. The crystal structure of N′-((1E,2E)-4-(7-methoxy-2-oxo-2H-chromen-8-yl)-2-methylbut-2-en-1-ylidene)-3-methylbenzohydrazide, C23H22N2O4
  64. Crystal structure of catena-poly[(μ2-isophthalato-κ2O:O′)-(2,5-di(pyrazin-2-yl)-4,4′-bipyridine-κ3N,N′,N′′)zinc(II)] — water (2/5), C26H21N6O6.5Zn
  65. Crystal structure of (3E,5E)-3,5-bis(3-nitrobenzylidene)-1-((4-(trifluoromethyl)phenyl)sulfonyl)piperidin-4-one — dichloromethane (2/1), C53H38Cl2F6N6O14S2
  66. Crystal structure of (μ2-oxido)-bis(N,N′-o-phenylenebis(salicylideneiminato))diiron(III) — N,N′-dimethylformamide, C47H43Fe2N4O9
  67. Crystal structure of N1,N3-bis(2-hydroxyethyl)-N1, N1,N3,N3-tetramethylpropane-1,3-diaminium dibromide, C11H28Br2N2O2
  68. Crystal structure of (E)-N-(4-chlorophenyl)-1-(pyridin-2-yl)methanimine, C12H9ClN2
  69. Crystal structure of 8-bromo-6-oxo-2-phenyl-6H-pyrrolo[3,2,1-ij]quinoline-5-carbaldehyde, C18H11BrNO2
  70. Crystal structure of 1,4-bis(2-azidoethyl)piperazine-1,4-diium dichloride trihydrate, C8H18N8Cl2 ⋅ 3 H2O
  71. Crystal structure of (E)-4-bromo-N-(pyridin-2-ylmethylene)aniline, C12H9BrN2
  72. Crystal structure of bis[(2-(3-bromophenyl)-5-methyl-1,3-dioxane-5-carboxylato-κ-O)-(5,5,7,12,12,14-hexamethyl-1,4,8,11-tetraazacyclotetradecane-κ4N,N′,N′′,N′′′)]nickel(II), C40H60Br2N4NiO8
  73. The crystal structure of (1E,2E)-2-methyl-4-((7-oxo-7H-furo[3,2-g]chromen-9-yl)oxy)but-2-enal O-isonicotinoyl oxime–trichloromethane (3/1), C67H49Cl3N6O18
  74. Crystal structure of 3-(2-ethoxy-2-oxoethyl)-1-methyl-1H-imidazol-3-ium hexafluoridophosphate(V), C8H13F6N2O2P
  75. Crystal structure of bis[(2-(2-bromophenyl)-5-ethyl-1,3-dioxane-5-carboxylato-κO)-(5,5,7,12,12,14-hexamethyl-1,4,8,11-tetraazacyclotetradecane-κ4N,N′,N′′,N′′′)]nickel(II) hemihydrate C42H65Br2N4NiO8.5
  76. The crystal structure of N-(7-(4-fluorobenzylidene)-3-(4-fluorophenyl)-3,3a,4,5,6,7-hexahydro-2H-indazole-2-carbonothioyl)benzamide, C28H23F2N3OS
  77. The crystal structure of N1,N4-bis(pyridin-3-yl)cyclohexane-1,4-dicarboxamide, C18H20N4O2
  78. Crystal structure of (E)-2-(3,6-bis(ethylamino)-2,7-dimethyl-9H-xanthen-9-yl)-N′-((6-methylpyridin-2-yl)methylene)benzohydrazide – methanol (1/1), C34H37N5O3
  79. Crystal structure of 2-oxo-1-(pyrimidin-5-ylmethyl)-3-(3-(trifluoromethyl)phenyl)-1,2-dihydro-5l4-pyrido[1,2-a]pyrimidin-4-olate, C20H13F3N4O2
  80. Crystal structure of poly[(μ3-9H-carbazole-3,6-dicarboxylato-κ3O1: O2: O3)(μ2-4-(pyridin-4-yl)pyridine-κ2N1:N1′)zinc(II)], C19H11N2O4Zn
  81. Crystal structure of (E)-N′-((1,8-dihydropyren-1-yl)-methylene)picolinohydrazide, C23H15N3O
  82. Crystal structure of catena-poly{[μ2-1,2-bis(diphenylphosphino)ethane]dichloridocadmium(II)}, C26H24CdCl2P2
  83. Crystal structure of the 1:2 co-crystal between N,N′-bis(4-pyridylmethyl)oxalamide and acetic acid as a dihydrate, C14H14N4O2⋅2 C2H4O2⋅2 H2O
  84. Crystal structure of the co-crystal N,N′-bis(3-pyridylmethyl)oxalamide acetic acid (1/2), C14H14N4O2⋅2C2H4O2
  85. Crystal structure of the co-crystal N,N′-bis(4-pyridylmethyl)oxalamide and 2,3,5,6-tetrafluoro-1,4-di-iodobenzene (1/1), C14H14N4O2⋅C6F4I2
  86. Crystal structure of the co-crystal 4-[(4-carboxyphenyl)disulfanyl]benzoic acid–(1E,4E)-1-N,4-N-bis(pyridin-4-ylmethylidene)cyclohexane-1,4-diamine (1/1), C14H10O4S2⋅C18H20N4
  87. Crystal structure of hexacarbonyl-bis(μ2-di-n-propyldithiocarbamato-κ3S,S′:S3S:S:S′)-di-rhenium(I), C20H28N2O6Re2S4
  88. Crystal structure of fac-tricarbonyl-morpholine-κN-(morpholinocarbamodithioato-κ2S,S′)rhenium(I), C12H17N2O5ReS2
Heruntergeladen am 19.11.2025 von https://www.degruyterbrill.com/document/doi/10.1515/ncrs-2019-0262/html
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