Home Physical Sciences Crystal structure of 2-(8a-methyl-5-oxo-hexahydroimidazo [1,2-a]pyridin-1(5H)-yl)-2-oxoethyl acetate, C12H18N2O4
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Crystal structure of 2-(8a-methyl-5-oxo-hexahydroimidazo [1,2-a]pyridin-1(5H)-yl)-2-oxoethyl acetate, C12H18N2O4

  • Fei Ye , Juan-Juan Li , Zhao-Zheng Xu and Ying Fu EMAIL logo
Published/Copyright: July 21, 2017
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Zeitschrift für Kristallographie - New Crystal Structures
From the journal Zeitschrift für Kristallographie - New Crystal Structures Volume 232 Issue 5

Abstract

C12H18N2O4, orthorhombic, P212121 (no. 19), a = 7.1591(14) Å, b = 10.236(2) Å, c = 16.713(3) Å, V = 1224.7(4) Å3, Z = 4, Rgt(F) = 0.0333, wRref(F2) = 0.0810, T = 293(2) K.

CCDC no.:: 1532367

The crystal structure is shown in the figure. Table 1 contains details on crystal structure and measurement conditions. Table 2 lists the atoms with their coordinates and displacement parameters.

Table 1

Data collection and handling.

Crystal:Colourless block
Size:0.5 × 0.37 × 0.29 mm
Wavelength:Mo Kα radiation (0.71073 Å)
μ:1.0 cm−1
Diffractometer, scan mode:Xcalibur Eos, ω
2θmax, completeness:55.2°, >98%
N(hkl)measured, N(hkl)unique, Rint:11509, 2762, 0.030
Criterion for Iobs, N(hkl)gt:Iobs > 2 σ(Iobs), 2578
N(param)refined:165
Programs:CrysAlisPRO [1], SHELX [2], DIAMOND [3]
Table 2

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

AtomxyzUiso*/Ueq
C10.53972(19)0.27779(13)0.13868(8)0.0186(3)
C20.70264(19)0.22773(14)0.09026(9)0.0213(3)
H2A0.66980.23280.03400.026*
H2B0.72090.13620.10310.026*
C30.8867(2)0.29834(15)0.10231(8)0.0212(3)
H3A0.88800.37770.07060.025*
H3B0.98860.24320.08430.025*
C40.91409(18)0.33215(14)0.19019(8)0.0198(3)
H4A0.91420.25270.22190.024*
H4B1.03370.37510.19740.024*
C50.75837(19)0.42157(13)0.21847(7)0.0163(3)
C60.7778(2)0.56147(14)0.18699(9)0.0253(3)
H6A0.78040.56030.12960.038*
H6B0.89150.59910.20680.038*
H6C0.67350.61270.20490.038*
C70.54488(19)0.40630(14)0.33291(8)0.0210(3)
H7A0.50570.47700.36770.025*
H7B0.52930.32400.36090.025*
C80.43522(19)0.40735(15)0.25495(8)0.0216(3)
H8A0.33200.34600.25670.026*
H8B0.38730.49390.24320.026*
C90.88080(19)0.46000(13)0.35571(8)0.0179(3)
C100.8241(2)0.47257(14)0.44338(8)0.0192(3)
H10A0.73200.54140.44890.023*
H10B0.76780.39150.46120.023*
C111.0940(2)0.39984(14)0.50945(8)0.0219(3)
C121.2563(2)0.44058(16)0.56010(10)0.0302(3)
H12A1.25790.38970.60830.045*
H12B1.24470.53150.57330.045*
H12C1.37030.42670.53110.045*
N10.57506(15)0.36746(11)0.19624(7)0.0183(2)
N20.73955(16)0.42411(11)0.30687(7)0.0180(2)
O10.38063(15)0.23619(11)0.12753(7)0.0279(3)
O21.03976(14)0.48316(11)0.33279(6)0.0245(2)
O30.98281(13)0.50183(9)0.49238(6)0.0201(2)
O41.06353(17)0.29059(11)0.48714(8)0.0377(3)

Source of materials

Ethyl 4-acetylbutyrate (0.05 mol) and ethylenediamine (0.14 mol) were mixed with 25 mL EtOH, refluxed for 8 h, and then the solvent was removed via vacuum distillation. The intermediate 5-methyl-9-oxa-1,4-diazabicyclo[3.4.0]nonane was purified by column chromatography on silica gel eluting with CH2Cl2 and EtOH (6:1). (Et)3N (1.72 g, 0.017 mol) was added to the intermediate (0.007 mol) in THF (30 mL) at 0–5°C. Acetoxyacetyl chloride (0.01 mol) was added dropwise to the mixture. The reaction was quenched with water. The solution was washed with sat. NH4Cl (aq), sat. Na2CO3 (aq), and water. The organic phase was dried over anhydrous MgSO4. After removal of the solvent, the products were crystallized from EtOH and light petroleum as a white solid with 52.1% yield.

Experimental details

The C—H atoms were constrained to an ideal geometry, with C—H distances of 0.96–0.97 Å. The Uiso values of the hydrogen atoms of methyl groups were set to 1.5Ueq(Cmethyl) and the Uiso values of all other hydrogen atoms were set to 1.2Ueq(C).

Discussion

Diazabicyclo derivatives are widely used as biological active materials. They were also used as anticancer agents, antibiotics, antibacterial agents, and so on [4], [5], [6], [7]. Moreover, they also acted as a useful intermediate in the synthesis of compounds with special properties [8, 9] . Dichloroacetyl diazabicyclo derivatives were reported as novel herbicide safener protecting crops from injury by chlorine acetamide herbicides, sulfonylurea herbicides, and imidazolinone herbicides since BASF employed 5-dichloroacetyl-3,3,6-trimethyl-9-oxo-1,5-diazabicyclo[4.3.0] nonane as safeners which increased the toleration of crops to acetanilides herbicides [10], [11], [12].

The title compound is a bicyclic molecule with N1 and C5 as the bridge carbon atoms. The dihedral angle between the plane I (C1/C2/C3/C4/C5/N1) and the plane II (N1/C5/N2/C7/C8) is 29.5°. Plane I adapted half-chair conformation. Plane II is in an envelope conformation with C5 forming the flap. The bond distances of C1—N1 and C9—N2 [1.3535(18) Å and 1.3505(17) Å, respectively] are shorter than the normal C—N distance, which indicates the existence of a p-π conjunction effect. In the crystal structure, molecules are linked by intermolecular C—H⋯O hydrogen bonds and van der Waals forces.

Acknowledgement

The authors gratefully acknowledge support by the National Nature Science Foundation of China (31572042) and the Research Science Foundation in Technology Innovation of Harbin (2015RAYXJ010).

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Received: 2017-2-24
Accepted: 2017-7-4
Published Online: 2017-7-21
Published in Print: 2017-9-26

©2017 Fei Ye et al., published by De Gruyter, Berlin/Boston

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

Articles in the same Issue

  1. Cover and Frontmatter
  2. Crystal structure of 2-(2-ethoxyphenyl)-7-propyl-5-methylimidazo[5,1-f][1,2,4]triazin-4(3H)-one, C17H20N4O2
  3. Crystal structure of catena-poly[aqua-(μ3-1,3,5-benzenetricarboxylato-κ3O:O′:O′′)-[μ3hydroxy-(1,3-di-(μ2-1,2,4-triazole-4-yl)benzoato-κ2N:N′)copper(II)], C19H16Cu2N6O9
  4. Crystal structure of poly[aqua-(μ3-3,5-di(4H-1,2,4-triazolyl-4-κ3N,N′:N′′)benzenecarboxylato)silver(I)], C11H9AgN6O3
  5. Crystal structure of tetrapropylammonium hydrogen carbonate, C13H29NO3
  6. Crystal structure of poly[μ2-acetato-κ3-O,O′:O′)diaqua(μ3-isophthalato-κ4O,O′:O′′:O′′′)yttrium(III)] monohydrate, C20H24O17Y2
  7. Crystal structure of catena-poly[dichlorido-(μ2-4-(1H-pyrazol-3-yl)-pyridine-κ2N,N′)]cadmium(II), C48H42Cd3Cl16N18
  8. Crystal structure of bis(tetraethylammonium) [1,1′-biphenyl]-2,2′-dicarboxylate trihydrate, C30H54N2O7
  9. Crystal structure of poly[(thiophene-3,4-dicarboxylato-κ1O)bis[1,2-bis(4-pyridyl)ethane-κ2N:N′]silver(I)] octahydrate, C30H42Ag2N4O12S
  10. The crystal structure of amine-(4-(1H-1,2,4-triazol-1-yl)benzoato-κN)silver(I) dihydrate, C9H13AgN4O4
  11. Crystal structure of poly[tetrakis(μ2-cyanido-κ2N:O)-cyanido-tris(pyridine)dicobalt(II/III)], C20H15Co2N8
  12. Crystal structure of bis(pyridine)-bis(2-formyl-4,6-dichlorophenolato)cobalt(II), C24H16Cl4CoN2O4
  13. Crystal structure of (E)-1-(4-(((E)-5-bromo-2-hydroxybenzylidene)amino)phenyl)ethan-1-one O-methyl oxime, C16H15BrN2O2
  14. Crystal structure of catena-poly[(μ2-3-(1H-pyrazol-4-yl)-5-(pyridin-4-yl)-1,2,4-triazole-κ N:N′)-bis(benzoato-κO)zinc(II)], C24H18N6O4Zn
  15. Hydrothermal synthesis and crystal structure of a poly[aqua-(μ4-4-(carboxylatomethyl)benzoato-κ4O:O′:O′′:O′′′)-(μ2-1-(4-(1H-imidazol-1-yl)benzyl)-1H-1,2,4-triazole-κ2N:N′) dimanganese(II)], [Mn2(C9H6O4)2(C12H11N5)(H2O)]
  16. Crystal structure of diaqua-catena-poly[diaqua-bis(μ2-5-(4-(1H-1,2,4-triazol-1-yl)phenyl)tetrazol-2-ido-κ2N:N′)cobalt(II)] dihydrate, C20H24CoN14O4
  17. Crystal structure of bis(μ3-2,2′-azanediylbis(ethan-1-olato)-κ5O:O,N,O′:O′)-tetrachlorido-bis(μ2-2-((2-hydroxyethyl)amino)ethan-1-olato-κ3N,O:O)dicobalt(II)dicobalt(III), C16H38Cl4Co4N4O8
  18. Crystal structure of poly[μ4-(4-(carboxylatomethyl)benzoato-κ4O:O′:O′′:O′′′)-(2-(4-(1H-imidazol-1-yl)phenyl)-1H-benzo[d]imidazole-κN)manganese(II)] [Mn(C9H6O4)(C16H12N4)]
  19. Crystal structure of 4-chloro-6-phenylpyrimidine, C10H7ClN2
  20. The crystal structure of [6-methoxy-2-(2,2,2-trifluoroacetyl)-3,4-dihydronaphthalen-1(2H)-one]difluoroborane, C13H10BF5O3
  21. Crystal structure of 3,3′-(butane-1,4-diylbis(azanylylidene))bis(1-phenylbut-1-en-1-olato)-κ4N,N′,O,O′]copper(II), C24H26N2O2Cu
  22. Crystal structure of tetraaqua-bis((E)-N′-(2-bromobenzylidene)isonicotinohydrazide-κN)zinc(II) dinitrate, C26H28N8O12Br2Zn
  23. Crystal structure of 2-amino-4-(4-bromophenyl)-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carbonitrile, C16H13BrN2O2
  24. A single crystal study on tert-butyl-4-((4-(4-bromo-2-fluorophenylamino)-6-methoxyquinazolin-7-yloxy)methyl)piperidine-1-carboxylate, C26H30BrFN4O4
  25. Crystal structure of 1,1′-((1E,1′E)-(((ethane-1,2-diylbis(oxy))bis(2,1-phenylene))bis(azanylylidene))bis(methanylylidene))bis(naphthalen-2-olato-κ3O,O′,N)zinc(II), C36H26N2O4Zn
  26. Crystal structure of diaqua-bis(5′-(pyridin-1-ium-4-yl)-1H-[3,3′-bi(1,2,4-triazol)]-2′-ide-κ2N,N′)cobalt(II) — bis(5-(pyridin-4-yl-κN)-1H,1′H-3,3′-bi(1,2,4-triazole))octamolybdate – water (2/1/8), C27H33CoMo4N21O19
  27. Crystal structure of 3-cyclohexyl-2-(cyclohexylimino)-2,3-dihydro-6,8-diiodo-4H-1,3-benzoxazin-4-one, C20H24I2N2O2
  28. Crystal structure of dinitrato-κO-bis(tris((1H-benzo[d]imidazol-2-yl)methyl)amine-κ4N,N′,N′′,N′′′)-(μ2-cyclohexane-1,4-dicarboxylato-κ4O,O′:O′′,O′′′)dimanganese(II) – methanol – water (1/6/2), C62H80Mn2N16O18
  29. Crystal structure of bis(2-hydroxyethyl(phenyl)carbamodithioate)nickel(II), C18H20N2NiO2S4
  30. Crystal structure of methyl 1-(4-fluorobenzyl)-4-methoxy-5-oxopyrrolidine-3-carboxylate, C14H16FNO4
  31. Crystal structure of di-μ-iodido-bis(6-(p-tolyl)-2,2′-bipyridine-κ2N,N′)dicopper(I) — 2-(diphenylphosphoryl)benzoic acid (1/2), C36H29CuIN2O3P
  32. Crystal structure of 2-amino-4-(3-bromo-4-fluoro-phenyl)-7,7-dimethyl-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carbonitrile, C18H16BrFN2O2
  33. Crystal structure of bis(μ2-2-chlorobenzoato-κ3O,O′:O′)-(2-chlorobenzoato-κO)-(2-chlorobenzoato-κO,O′)-bis(1,10-phenanthroline-κ2N,N′)-dicadmium(II) monohydrate, C52H36Cd2Cl4N4O10
  34. Crystal structure of 2-(8a-methyl-5-oxo-hexahydroimidazo [1,2-a]pyridin-1(5H)-yl)-2-oxoethyl acetate, C12H18N2O4
  35. Crystal structure of (E)-N,N-diethyl-2-(5-nitrothiazol-2-yl)-1-phenylethen-1-amine, C15H17N3O2S
  36. Crystal structure of diazido-dimethanolato-bis(μ2-2-(((3-oxidopropyl)imino)methyl)phenolato-κ4O:O,O′,N)dimanganese(III), C22H28Mn2N8O6
  37. The crystal structure of bis(2-(2,2,2-trifluoroacetyl)-3,4-dihydronaphthalen-1-olato-κ2O,O′)copper(II), C24H16CuF6O4
  38. Crystal structure of hexaaquanickel(II) bis((E)-4-((4-(dimethylamino)phenyl)diazenyl)benzenesulfonate), C28H40N6NiO12S2
  39. Crystal structure of catena-poly[aqua-(μ2-hexamethylenetetramine-κ2N:N′)-bis(2,6-difluorobenzoato-κ2O:O′)cadmium(II)]monohydrate, C20H22CdF4N4O6
  40. Crystal structure of 3-benzyl-2,3-dihydro-2-thioxoquinazolin-4(1H)-one, C15H12N2OS
  41. Crystal structure of bis(μ2-ferrocenecarboxylato-κ2O:O′)-bis(1,10-phenanthroline-κ2N,N′)-(μ2-methanolato-κ2O,O)dicopper(II) tetrafluoroborate – acetonitrile (1/1), C49H40BCu2F4Fe2N5O5
  42. The crystal structure of tetrakis(1,3,5-triaza-7-phosphatricyclo[3.3.1.13,7]decane-κP)silver(I) chloride dihydrate, C24H60AgClN12O6P4
  43. Crystal structure of 5-ethyl-2-(p-tolyl)-1,3-dioxane-5-carboxylic acid, C14H18O4
  44. Crystal structure of 2-(4-fluorophenyl)-1,3-dimethyl-1H-perimidin-3-ium iodide, C19H16ClIN2
  45. Crystal structure of catena-poly[(μ2-hexamethylenetetramine-κ2N:N′)-tetrakis(μ2-2,6-difluorobenzoato-κ2O:O′)dicopper(II)], C34H24Cu2F8N4O8
  46. Crystal structure of ethyl 3-hydroxy-5-methyl-2-(4-(m-tolyl)-1H-1,2,3-triazol-1-yl)-[1,1′-biphenyl]-4- carboxylate, C25H24N3O3
  47. The crystal structure of carbonyl(2-oxopyridin-1(2H)-olato-κ2O,O′)-(diphenylcyclohexylphosphine-κP)rhodium(I), C24H25NO3PRh
  48. Crystal structure of bis((pyrazin-2-ylmethyl)(pyrazine-2-carbonyl)amido-κ3N,N′,N′′)copper(II), C20H16CuN10O2
  49. Crystal structure of catena-poly[tetraaqua-(μ2-succinonitrile-κ2N:N′)cobalt(II)] dinitrate, C4H12CoN4O10
  50. The crystal structure of 1,1′-bisisoquinoline, C18H12N2
  51. Crystal structure of bis(hydroxydi(pyridin-2-yl)methanolato-κ3N,N′,O)cobalt(III) perchlorate dihydrate, C22H22ClCoN4O10
https://doi.org/10.1515/ncrs-2017-0041
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Articles in the same Issue

  1. Cover and Frontmatter
  2. Crystal structure of 2-(2-ethoxyphenyl)-7-propyl-5-methylimidazo[5,1-f][1,2,4]triazin-4(3H)-one, C17H20N4O2
  3. Crystal structure of catena-poly[aqua-(μ3-1,3,5-benzenetricarboxylato-κ3O:O′:O′′)-[μ3hydroxy-(1,3-di-(μ2-1,2,4-triazole-4-yl)benzoato-κ2N:N′)copper(II)], C19H16Cu2N6O9
  4. Crystal structure of poly[aqua-(μ3-3,5-di(4H-1,2,4-triazolyl-4-κ3N,N′:N′′)benzenecarboxylato)silver(I)], C11H9AgN6O3
  5. Crystal structure of tetrapropylammonium hydrogen carbonate, C13H29NO3
  6. Crystal structure of poly[μ2-acetato-κ3-O,O′:O′)diaqua(μ3-isophthalato-κ4O,O′:O′′:O′′′)yttrium(III)] monohydrate, C20H24O17Y2
  7. Crystal structure of catena-poly[dichlorido-(μ2-4-(1H-pyrazol-3-yl)-pyridine-κ2N,N′)]cadmium(II), C48H42Cd3Cl16N18
  8. Crystal structure of bis(tetraethylammonium) [1,1′-biphenyl]-2,2′-dicarboxylate trihydrate, C30H54N2O7
  9. Crystal structure of poly[(thiophene-3,4-dicarboxylato-κ1O)bis[1,2-bis(4-pyridyl)ethane-κ2N:N′]silver(I)] octahydrate, C30H42Ag2N4O12S
  10. The crystal structure of amine-(4-(1H-1,2,4-triazol-1-yl)benzoato-κN)silver(I) dihydrate, C9H13AgN4O4
  11. Crystal structure of poly[tetrakis(μ2-cyanido-κ2N:O)-cyanido-tris(pyridine)dicobalt(II/III)], C20H15Co2N8
  12. Crystal structure of bis(pyridine)-bis(2-formyl-4,6-dichlorophenolato)cobalt(II), C24H16Cl4CoN2O4
  13. Crystal structure of (E)-1-(4-(((E)-5-bromo-2-hydroxybenzylidene)amino)phenyl)ethan-1-one O-methyl oxime, C16H15BrN2O2
  14. Crystal structure of catena-poly[(μ2-3-(1H-pyrazol-4-yl)-5-(pyridin-4-yl)-1,2,4-triazole-κ N:N′)-bis(benzoato-κO)zinc(II)], C24H18N6O4Zn
  15. Hydrothermal synthesis and crystal structure of a poly[aqua-(μ4-4-(carboxylatomethyl)benzoato-κ4O:O′:O′′:O′′′)-(μ2-1-(4-(1H-imidazol-1-yl)benzyl)-1H-1,2,4-triazole-κ2N:N′) dimanganese(II)], [Mn2(C9H6O4)2(C12H11N5)(H2O)]
  16. Crystal structure of diaqua-catena-poly[diaqua-bis(μ2-5-(4-(1H-1,2,4-triazol-1-yl)phenyl)tetrazol-2-ido-κ2N:N′)cobalt(II)] dihydrate, C20H24CoN14O4
  17. Crystal structure of bis(μ3-2,2′-azanediylbis(ethan-1-olato)-κ5O:O,N,O′:O′)-tetrachlorido-bis(μ2-2-((2-hydroxyethyl)amino)ethan-1-olato-κ3N,O:O)dicobalt(II)dicobalt(III), C16H38Cl4Co4N4O8
  18. Crystal structure of poly[μ4-(4-(carboxylatomethyl)benzoato-κ4O:O′:O′′:O′′′)-(2-(4-(1H-imidazol-1-yl)phenyl)-1H-benzo[d]imidazole-κN)manganese(II)] [Mn(C9H6O4)(C16H12N4)]
  19. Crystal structure of 4-chloro-6-phenylpyrimidine, C10H7ClN2
  20. The crystal structure of [6-methoxy-2-(2,2,2-trifluoroacetyl)-3,4-dihydronaphthalen-1(2H)-one]difluoroborane, C13H10BF5O3
  21. Crystal structure of 3,3′-(butane-1,4-diylbis(azanylylidene))bis(1-phenylbut-1-en-1-olato)-κ4N,N′,O,O′]copper(II), C24H26N2O2Cu
  22. Crystal structure of tetraaqua-bis((E)-N′-(2-bromobenzylidene)isonicotinohydrazide-κN)zinc(II) dinitrate, C26H28N8O12Br2Zn
  23. Crystal structure of 2-amino-4-(4-bromophenyl)-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carbonitrile, C16H13BrN2O2
  24. A single crystal study on tert-butyl-4-((4-(4-bromo-2-fluorophenylamino)-6-methoxyquinazolin-7-yloxy)methyl)piperidine-1-carboxylate, C26H30BrFN4O4
  25. Crystal structure of 1,1′-((1E,1′E)-(((ethane-1,2-diylbis(oxy))bis(2,1-phenylene))bis(azanylylidene))bis(methanylylidene))bis(naphthalen-2-olato-κ3O,O′,N)zinc(II), C36H26N2O4Zn
  26. Crystal structure of diaqua-bis(5′-(pyridin-1-ium-4-yl)-1H-[3,3′-bi(1,2,4-triazol)]-2′-ide-κ2N,N′)cobalt(II) — bis(5-(pyridin-4-yl-κN)-1H,1′H-3,3′-bi(1,2,4-triazole))octamolybdate – water (2/1/8), C27H33CoMo4N21O19
  27. Crystal structure of 3-cyclohexyl-2-(cyclohexylimino)-2,3-dihydro-6,8-diiodo-4H-1,3-benzoxazin-4-one, C20H24I2N2O2
  28. Crystal structure of dinitrato-κO-bis(tris((1H-benzo[d]imidazol-2-yl)methyl)amine-κ4N,N′,N′′,N′′′)-(μ2-cyclohexane-1,4-dicarboxylato-κ4O,O′:O′′,O′′′)dimanganese(II) – methanol – water (1/6/2), C62H80Mn2N16O18
  29. Crystal structure of bis(2-hydroxyethyl(phenyl)carbamodithioate)nickel(II), C18H20N2NiO2S4
  30. Crystal structure of methyl 1-(4-fluorobenzyl)-4-methoxy-5-oxopyrrolidine-3-carboxylate, C14H16FNO4
  31. Crystal structure of di-μ-iodido-bis(6-(p-tolyl)-2,2′-bipyridine-κ2N,N′)dicopper(I) — 2-(diphenylphosphoryl)benzoic acid (1/2), C36H29CuIN2O3P
  32. Crystal structure of 2-amino-4-(3-bromo-4-fluoro-phenyl)-7,7-dimethyl-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carbonitrile, C18H16BrFN2O2
  33. Crystal structure of bis(μ2-2-chlorobenzoato-κ3O,O′:O′)-(2-chlorobenzoato-κO)-(2-chlorobenzoato-κO,O′)-bis(1,10-phenanthroline-κ2N,N′)-dicadmium(II) monohydrate, C52H36Cd2Cl4N4O10
  34. Crystal structure of 2-(8a-methyl-5-oxo-hexahydroimidazo [1,2-a]pyridin-1(5H)-yl)-2-oxoethyl acetate, C12H18N2O4
  35. Crystal structure of (E)-N,N-diethyl-2-(5-nitrothiazol-2-yl)-1-phenylethen-1-amine, C15H17N3O2S
  36. Crystal structure of diazido-dimethanolato-bis(μ2-2-(((3-oxidopropyl)imino)methyl)phenolato-κ4O:O,O′,N)dimanganese(III), C22H28Mn2N8O6
  37. The crystal structure of bis(2-(2,2,2-trifluoroacetyl)-3,4-dihydronaphthalen-1-olato-κ2O,O′)copper(II), C24H16CuF6O4
  38. Crystal structure of hexaaquanickel(II) bis((E)-4-((4-(dimethylamino)phenyl)diazenyl)benzenesulfonate), C28H40N6NiO12S2
  39. Crystal structure of catena-poly[aqua-(μ2-hexamethylenetetramine-κ2N:N′)-bis(2,6-difluorobenzoato-κ2O:O′)cadmium(II)]monohydrate, C20H22CdF4N4O6
  40. Crystal structure of 3-benzyl-2,3-dihydro-2-thioxoquinazolin-4(1H)-one, C15H12N2OS
  41. Crystal structure of bis(μ2-ferrocenecarboxylato-κ2O:O′)-bis(1,10-phenanthroline-κ2N,N′)-(μ2-methanolato-κ2O,O)dicopper(II) tetrafluoroborate – acetonitrile (1/1), C49H40BCu2F4Fe2N5O5
  42. The crystal structure of tetrakis(1,3,5-triaza-7-phosphatricyclo[3.3.1.13,7]decane-κP)silver(I) chloride dihydrate, C24H60AgClN12O6P4
  43. Crystal structure of 5-ethyl-2-(p-tolyl)-1,3-dioxane-5-carboxylic acid, C14H18O4
  44. Crystal structure of 2-(4-fluorophenyl)-1,3-dimethyl-1H-perimidin-3-ium iodide, C19H16ClIN2
  45. Crystal structure of catena-poly[(μ2-hexamethylenetetramine-κ2N:N′)-tetrakis(μ2-2,6-difluorobenzoato-κ2O:O′)dicopper(II)], C34H24Cu2F8N4O8
  46. Crystal structure of ethyl 3-hydroxy-5-methyl-2-(4-(m-tolyl)-1H-1,2,3-triazol-1-yl)-[1,1′-biphenyl]-4- carboxylate, C25H24N3O3
  47. The crystal structure of carbonyl(2-oxopyridin-1(2H)-olato-κ2O,O′)-(diphenylcyclohexylphosphine-κP)rhodium(I), C24H25NO3PRh
  48. Crystal structure of bis((pyrazin-2-ylmethyl)(pyrazine-2-carbonyl)amido-κ3N,N′,N′′)copper(II), C20H16CuN10O2
  49. Crystal structure of catena-poly[tetraaqua-(μ2-succinonitrile-κ2N:N′)cobalt(II)] dinitrate, C4H12CoN4O10
  50. The crystal structure of 1,1′-bisisoquinoline, C18H12N2
  51. Crystal structure of bis(hydroxydi(pyridin-2-yl)methanolato-κ3N,N′,O)cobalt(III) perchlorate dihydrate, C22H22ClCoN4O10
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