Home Crystal structure of 2-(1H-indol-3-yl)ethan-1-aminium 2-(4-acetylphenoxy)acetate, C20H22N2O4
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Crystal structure of 2-(1H-indol-3-yl)ethan-1-aminium 2-(4-acetylphenoxy)acetate, C20H22N2O4

  • Feng Yi-Min and Tai Xi-Shi ORCID logo EMAIL logo
Published/Copyright: December 16, 2021
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Zeitschrift für Kristallographie - New Crystal Structures
From the journal Zeitschrift für Kristallographie - New Crystal Structures Volume 237 Issue 1

Abstract

C20H22N2O4, monoclinic, P21/c (no. 14), a = 18.1092(12) Å, b = 8.4026(6) Å, c = 11.6983(8) Å, β = 92.582(7)°, V = 1778.3(2) Å3, Z = 4, Rgt(F) = 0.0456, wRref(F2) = 0.1137, T = 200.00(10) K.

CCDC no.: 2125852

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: Bronze block
Size 0.14 × 0.11 × 0.10 mm
Wavelength: Mo Kα radiation (0.71073 Å)
μ: 0.09 mm−1
Diffractometer, scan mode: SuperNova, ω
θmax, completeness: 25.0°, >99%
N(hkl)measured, N(hkl)unique, Rint: 7718, 3108, 0.035
Criterion for Iobs, N(hkl)gt: Iobs > 2 σ(Iobs), 2477
N(param)refined: 252
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 Uiso*/Ueq
O1 0.54252 (8) 0.5713 (2) 0.68117 (15) 0.0720 (6)
O2 0.20651 (6) 0.63334 (14) 0.50218 (10) 0.0285 (3)
O3 0.10967 (7) 0.69689 (14) 0.23523 (10) 0.0289 (3)
O4 0.07386 (6) 0.59419 (14) 0.39999 (10) 0.0306 (3)
C1 0.41219 (10) 0.5781 (2) 0.67014 (17) 0.0329 (5)
C2 0.40832 (10) 0.6213 (2) 0.55554 (17) 0.0363 (5)
H2 0.451954 0.635271 0.517780 0.044*
C3 0.34144 (10) 0.6442 (2) 0.49571 (17) 0.0331 (5)
H3 0.340210 0.673656 0.419024 0.040*
C4 0.27613 (9) 0.62248 (19) 0.55190 (15) 0.0248 (4)
C5 0.27915 (10) 0.5831 (2) 0.66746 (15) 0.0281 (4)
H5 0.235562 0.572034 0.705815 0.034*
C6 0.34596 (10) 0.5602 (2) 0.72545 (16) 0.0311 (4)
H6 0.347096 0.532535 0.802479 0.037*
C7 0.48516 (11) 0.5494 (3) 0.72966 (19) 0.0433 (5)
C8 0.48752 (12) 0.4936 (3) 0.8512 (2) 0.0590 (7)
H8A 0.537656 0.470042 0.875539 0.089*
H8B 0.457869 0.399533 0.856964 0.089*
H8C 0.468558 0.575547 0.898958 0.089*
C9 0.19985 (9) 0.6734 (2) 0.38376 (15) 0.0267 (4)
H9A 0.232219 0.605637 0.341314 0.032*
H9B 0.215290 0.782859 0.373500 0.032*
C10 0.12087 (9) 0.65352 (18) 0.33698 (15) 0.0223 (4)
N1 0.12482 (10) 0.52622 (19) 1.01261 (15) 0.0353 (4)
H1 0.1139 (11) 0.591 (2) 1.0647 (19) 0.044 (6)*
N2 0.07292 (9) 0.50832 (17) 0.62536 (14) 0.0239 (4)
H2A 0.0216 (12) 0.495 (2) 0.6287 (17) 0.034 (5)*
H2B 0.0790 (11) 0.550 (2) 0.547 (2) 0.044 (6)*
H2C 0.0899 (10) 0.585 (2) 0.6805 (17) 0.032 (5)*
C11 0.10797 (10) 0.3497 (2) 0.64127 (15) 0.0275 (4)
H11A 0.161174 0.360252 0.638093 0.033*
H11B 0.090976 0.279562 0.579680 0.033*
C12 0.08921 (10) 0.2774 (2) 0.75503 (16) 0.0313 (4)
H12A 0.035858 0.270648 0.758032 0.038*
H12B 0.108512 0.169748 0.758725 0.038*
C13 0.11864 (10) 0.36713 (19) 0.85832 (15) 0.0258 (4)
C14 0.08117 (11) 0.4742 (2) 0.92154 (17) 0.0320 (5)
H14 0.032832 0.507200 0.905096 0.038*
C15 0.19231 (11) 0.4523 (2) 1.01027 (16) 0.0294 (4)
C16 0.19060 (10) 0.35208 (19) 0.91338 (15) 0.0260 (4)
C17 0.25354 (10) 0.2606 (2) 0.89255 (18) 0.0348 (5)
H17 0.254463 0.195592 0.828305 0.042*
C18 0.31375 (11) 0.2684 (3) 0.9682 (2) 0.0464 (6)
H18 0.355271 0.206958 0.955413 0.056*
C19 0.31343 (12) 0.3677 (3) 1.0644 (2) 0.0504 (6)
H19 0.354618 0.370034 1.114856 0.060*
C20 0.25353 (12) 0.4618 (2) 1.08584 (18) 0.0424 (5)
H20 0.253971 0.529478 1.148761 0.051*

Source of material

The title salt was prepared by the following steps: 0.194 g 4-acetyl-phenoxyacetic acid (1.0 mmol), 0.1602 g tryptamine (1.0 mmol), 0.040 g NaOH (1.0 mmol), and 0.1225 g manganese acetate tetrahydrate (0.5 mmol) were dissolved in 25 mL N,N-dimethylformamide-water solution- ethanol (v:v:v = 1:2:2). The mixture was stirred for 4 h at 70 °C, and then continully stirred for 3 h at room temperature. The colorless crystals of the title salt were received from the filtrate after 22 days.

Experimental details

The hydrogen atoms were positioned geometrically (C–H = 0.93–0.97 Å and N–H = 0.85–0.99 Å). Their Uiso values were set to 1.2Ueq or 1.5Ueq of the parent atoms.

Comment

Aminium compounds based on organic carboxylates exhibit applications in cement grinding aids [5], antirust [6], supramolecular assemblies [7]. Our goal was to synthesize a manganese complex of a Schiff base, however, unfortunately, neither the Schiff base ligand nor the manganese complex was formed. Only a new salt compound has been obtained by 4-acetyl-phenoxyacetic acid, tryptamine, NaOH, and manganese acetate tetrahydrate as raw materials.

The title compound consists of one (4-acetyl-phenoxy)-acetate anion and one 2-(1H-indol-3-yl)-ethyl-ammonium cation (the Figure). The bond distances of C–O are 1.220(2) Å (C7–O1), 1.368(2) Å (C4–O2), 1.425(2) Å (C9–O2), 1.253(2) Å (C10–O3), 1.254(2) Å (C10–O4), respectively, indicating that the C7–O1 bond is double bond. The bond distances of C–N are 1.369(3) Å (C14–N1), 1.372(3) Å (C15–N1) and 1.484(2) Å (C11–N2), respectively. The bond distances of C–O and C–N are consistent with Refs. [8], [9], [10]. The ring 1 (C13–C14–N1–C15–C16) and ring 2 (C15–C16–C17–C18–C19–C20) are coplanar with a dihedral angle of 2.3°. The ring 3 (C1–C2–C3–C4–C5–C6) and ring 2 (C15–C16–C17–C18–C19–C20) are not coplanar with a dihedral angle of 54.2°. The title compound forms a layered structure by N–H…O hydrogen bonds.

Corresponding author: Tai Xi-Shi, College of Chemistry and Chemical Engineering, Weifang University, Weifang, Shandong 261061, P. R. China, E-mail:

Funding source: National Natural Science Foundation of China

Award Identifier / Grant number: 21171132

Funding source: Natural Science Foundation of Shandong

Award Identifier / Grant number: ZR2014BL003

Funding source: Project of Shandong Province Higher Educational Science and Technology Program

Award Identifier / Grant number: J14LC01

Funding source: Weifang University of Science and Technology

Acknowledgements

We thank Guido J. Reiss for his help on the refinement of crystal data.

  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, https://doi.org/10.13039/501100001809), the Natural Science Foundation of Shandong (ZR2014BL003, https://doi.org/10.13039/501100007129), the project of Shandong Province Higher Educational Science and Technology Program (J14LC01, https://doi.org/10.13039/501100015642) and Weifang University of Science and Technology (https://doi.org/10.13039/501100010887).

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

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Received: 2021-10-22
Accepted: 2021-12-02
Published Online: 2021-12-16
Published in Print: 2022-02-23

© 2021 Feng Yi-Min and Tai Xi-Shi, 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)-7-hydroxy-2-((6-methoxypyridin-3-yl)methylene)-3, 4-dihydronaphthalen-1(2H)-one, C17H15NO3
  4. Crystal structure of (E)-7-methoxy-2-((2-methoxypyridin-3-yl)methylene)-3,4-dihydronaphthalen-1 (2H)-one, C18H17NO3
  5. The crystal structure of N 6,N 6′-di(pyridin-2-yl)-[2,2′-bipyridine]-6,6′-diamine, C20H16N6
  6. The crystal structure of {N 1,N 2-bis[2,4-dimethyl-6-(4-(tert-butyl)phenyl)(phenyl)methyl]acenaphthylene-1,2-diimino-κ2 N, N′}-dibromido-nickel(II) – dichloromethane(1/2), C64H64Br2Cl4N2Ni
  7. Synthesis and crystal structure of nonacarbonyltris[(2-thia-1,3,5-triaza-7-phosphatricylco[3.3.1.1]decane-κ1 P)-2,2-dioxide]triruthenium(0) – acetonitrile (7/6), C25.71H32.57N9.86O15P3S3Ru3
  8. A new polymorph of 1-(4-nitrophenyl)-1H-benzimidazole (C13H9N3O2)
  9. The crystal structure of 2,2′-((1E,1′E)-(naphthalene-2,3 diylbis(azanylylidene)) bis(methanylylidene))bis(4-methylphenol), C26H22N2O2
  10. The crystal structure of bis(μ2-iodido)-bis(η6-benzene)-bis(iodido)-diosmium(II), C12H12I4Os2
  11. Redetermination of the crystal structure of bis{hydridotris(3,5-dimethylpyrazol-1-yl-κN 3)borato}copper(II), C30H44B2CuN12
  12. Crystal structure of (E)-3-((4-(tert-butyl)phenyl)thio)-4-hydroxypent-3-en-2-one, C15H20O2S
  13. Crystal structure of 2,2′-(p-tolylazanediyl)bis(1-phenylethan-1-one), C23H21NO2
  14. Redetermination of the crystal structure of the crystal sponge the poly[tetrakis(μ3-2,4,6-tris(pyridin-4-yl)-1,3,5-triazine)-dodecaiodidohexazinc(II) nitrobenzene solvate], C72H48I12N24Zn6⋅10(C6H5NO2)
  15. Crystal structure of (4′E)-6′-(diethylamino)-2-[(E)-[(6-methylpyridin-2-yl)methylidene]amino]-4′-{2-[(2E)-1,3,3-trimethyl-2,3-dihydro-1H-indol-2-ylidene]ethylidene}-1′,2,2′,3,3′,4′-hexahydrospiro[isoindole-1,9′-xanthene]-3-one, C44H45N5O2
  16. Crystal structure of (E)-7-fluoro-2-(3-fluorobenzylidene)-3,4-dihydronaphthalen-1(2H)-one, C17H12F2O1
  17. Crystal structure of tetrabutylammonium sulfanilate – 1-(diaminomethylene)thiourea (1/2)
  18. Crystal structure of [2,2′-{azanediyl)bis[(propane-3,1-diyl)(azanylylidene)methylylidene]} bis(3,5-dichlorophenolato)-κ2O,O′]-isothiocyanato-κN-iron(III), C21H19Cl4FeN4O2S
  19. Crystal structure of (4-chlorophenyl)(4-hydroxyphenyl)methanone, C13H9ClO2
  20. Crystal structure of 6,6′-((pentane-1,3-diylbis(azaneylylidene))bis(methaneylylidene))bis(2,4-dibromolphenolato-κ4 N,N′,O,O′)copper(II),) C19H16Br4CuN2O2
  21. Chlorido-(2,2′-(ethane-bis(5-methoxyphenolato))-κ4 N,N′,O,O′)manganese(III) monohydrate, C19H18Cl2CuN2O2
  22. Crystal structure of 2,6-di-tert-butyl-4-(4-methoxybenzylidene)cyclohexa-2,5-dien-1-one, C22H28O2
  23. Crystal structure of [6,6′-(((2,2-dimethylpropane-1,3-diyl)bis(azanylylidene))bis(methanylylidene))bis(2-chlorophenolato)-κ4N,N′,O,O′]copper(II)
  24. Crystal structure of 2-chloro-3-((thiophen-2-ylmethyl)amino)naphthalene-1,4-dione, C30H20O4N2Cl2S2
  25. Crystal structure of bis{hydridotris(3-trifluoromethyl-5-methylpyrazolyl-1-yl)borato-κN 3}manganese(II), C30H26B2F18MnN12
  26. Crystal structure of 1-(2-methylphenyl)-2-(2-methylbenzo[b]thienyl)-3,3,4,4,5,5-hexafluorocyclopent-ene, C21H14F6S
  27. Crystal structure of 2-(3-((carbamimidoylthio)methyl)benzyl)isothiouronium hexafluorophosphate monohydrate, C10H17F6N4OPS2
  28. Crystal structure of 4,5-diiodo-1,3-dimesityl-1H-1,2,3-triazol-3-ium chloride – chloroform (1/1), C21H23Cl4I2N3
  29. Crystal structure of azido-k1 N-{6,6′-((((methylazanediyl)bis(propane-3,1-diyl))bis(azanylylidene))bis(methanylylidene))bis(2,4-dibromophenolato)k5 N,N′,N″,O,O′}cobalt(III)-methanol (1/1)), C21H23Br4CoN6O3
  30. The crystal structure of 2-(4-((carbamimidoylthio)methyl)benzyl)isothiouronium hexafluorophosphate monohydrate, C10H17F6N4OPS2
  31. Crystal structure of 1,1′-(methane-1,1-diyl)bis(3-methyl-1H-imidazol-3-ium) bis(hexafluoridophosphate), C9H14F12N4P2
  32. Crystal structure of (4′E)-6′-(diethylamino)-2-[(E)-[(pyren-1-yl)methylidene]amino]-4′-{2-[(2E)-1,3,3-trimethyl-2,3-dihydro-1H-indol-2-ylidene]ethylidene}-1′,2,2′,3,3′,4′-hexahydrospiro[isoindole-1,9′-xanthene]-3-one, C54H48N4O2
  33. Crystal structure of poly[bis(μ2-2,6-bis(1-imidazoly)pyridine-κ2 N,N′)-bis(thiocyanato-κ1 N)copper(II)] dithiocyanate, C24H18CuN12S2
  34. Cones with a three-fold symmetry constructed from three hydrogen bonded theophyllinium cations that coat [FeCl4]− anions in the crystal structure of tris(theophyllinium) bis(tetrachloridoferrate(III)) chloride trihydrate, C21H33Cl9Fe2N12O9
  35. Crystal structure of 14-O-[(4-(4-hydroxypiperidine-1-yl)-6-methylpyrimidine-2-yl)thioacetyl]-mutilin monohydrate, C32H49N3O6S
  36. The crystal structure of (E)-3-chloro-2-(2-(4-methylbenzylidene)hydrazinyl)pyridine, C13H12ClN3
  37. The crystal structure of 4-phenyl-4-[2-(pyridine-4-carbonyl)hydrazinylidene]butanoic acid, C16H15N3O3
  38. The crystal structure of 6-amino-5-carboxypyridin-1-ium pentaiodide monohydrate C6H9I5N2O3
  39. Crystal structure of bis(μ3-oxido)-bis(μ2-2-formylbenzoato-k2O:O′)-bis(2-(dimethoxymethyl)-benzoato-κO)-oktakismethyl-tetratin(IV)
  40. Crystal structure of 2-((E)-(((E)-2-hydroxy-4-methylbenzylidene) hydrazineylidene)methyl)-4-methylphenol, C16H16N2O2
  41. Crystal structure of (E)-amino(2-((5-methylfuran-2-yl)methylene)hydrazinyl) methaniminium nitrate monohydrate, C14H26N10O10
  42. The crystal structure of N′-(2-chloro-6-hydroxybenzylidene)thiophene-2-carbohydrazide monohydrate, C12H11ClN2O3S
  43. Crystal structure of catena-poly[(μ2-1,1′-(biphenyl-4,4′-diyl)bis(1H-imidazol)-κ2N:N′)-bis(4-bromobenzoate-κ1O)zinc(II)], C64H44Br4N8O8Zn2
  44. The crystal structure of catena-poly[(1-(4-carboxybenzyl)pyridin-1-ium-4-carboxylato-κ1O)-(μ2-oxalato-κ4 O:O′:O″:O‴)dioxidouranium(VI)], C16H11NO10U
  45. Crystal structure of 3-allyl-4-(2-bromoethyl)-5-(4-methoxyphenyl)-2-phenylfuran, C22H21BrO2
  46. Halogen bonds in the crystal structure of 4,3′:5′,4″-terpyridine — 1,3-diiodotetrafluorobenzene (1/1), C21H11F4I2N3
  47. Crystal structure of 2-(1H-indol-3-yl)ethan-1-aminium 2-(4-acetylphenoxy)acetate, C20H22N2O4
  48. Chalcogen bonds in the crystal structure of 4,7-dibromo-2,1,3-benzoselenadiazole, C6H2Br2N2Se
  49. The crystal structure of 1,4-bis((1H-benzimidazol-2-yl)methyl)-piperazine-2,5-dione dihydrate, C20H22N6O4
  50. The crystal structure of C19H20O8
  51. The crystal structure of KNa3Te8O18·5H2O exhibiting a ∞2[Te4O9]2− layer
  52. Erratum
  53. Erratum to: Crystal structure of (Z)-3-(6-bromo-1H-indol-3-yl)-1,3-diphenylprop-2-en-1-one, C23H16BrNO
https://doi.org/10.1515/ncrs-2021-0410
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Articles in the same Issue

  1. Frontmatter
  2. New Crystal Structures
  3. Crystal structure of (E)-7-hydroxy-2-((6-methoxypyridin-3-yl)methylene)-3, 4-dihydronaphthalen-1(2H)-one, C17H15NO3
  4. Crystal structure of (E)-7-methoxy-2-((2-methoxypyridin-3-yl)methylene)-3,4-dihydronaphthalen-1 (2H)-one, C18H17NO3
  5. The crystal structure of N 6,N 6′-di(pyridin-2-yl)-[2,2′-bipyridine]-6,6′-diamine, C20H16N6
  6. The crystal structure of {N 1,N 2-bis[2,4-dimethyl-6-(4-(tert-butyl)phenyl)(phenyl)methyl]acenaphthylene-1,2-diimino-κ2 N, N′}-dibromido-nickel(II) – dichloromethane(1/2), C64H64Br2Cl4N2Ni
  7. Synthesis and crystal structure of nonacarbonyltris[(2-thia-1,3,5-triaza-7-phosphatricylco[3.3.1.1]decane-κ1 P)-2,2-dioxide]triruthenium(0) – acetonitrile (7/6), C25.71H32.57N9.86O15P3S3Ru3
  8. A new polymorph of 1-(4-nitrophenyl)-1H-benzimidazole (C13H9N3O2)
  9. The crystal structure of 2,2′-((1E,1′E)-(naphthalene-2,3 diylbis(azanylylidene)) bis(methanylylidene))bis(4-methylphenol), C26H22N2O2
  10. The crystal structure of bis(μ2-iodido)-bis(η6-benzene)-bis(iodido)-diosmium(II), C12H12I4Os2
  11. Redetermination of the crystal structure of bis{hydridotris(3,5-dimethylpyrazol-1-yl-κN 3)borato}copper(II), C30H44B2CuN12
  12. Crystal structure of (E)-3-((4-(tert-butyl)phenyl)thio)-4-hydroxypent-3-en-2-one, C15H20O2S
  13. Crystal structure of 2,2′-(p-tolylazanediyl)bis(1-phenylethan-1-one), C23H21NO2
  14. Redetermination of the crystal structure of the crystal sponge the poly[tetrakis(μ3-2,4,6-tris(pyridin-4-yl)-1,3,5-triazine)-dodecaiodidohexazinc(II) nitrobenzene solvate], C72H48I12N24Zn6⋅10(C6H5NO2)
  15. Crystal structure of (4′E)-6′-(diethylamino)-2-[(E)-[(6-methylpyridin-2-yl)methylidene]amino]-4′-{2-[(2E)-1,3,3-trimethyl-2,3-dihydro-1H-indol-2-ylidene]ethylidene}-1′,2,2′,3,3′,4′-hexahydrospiro[isoindole-1,9′-xanthene]-3-one, C44H45N5O2
  16. Crystal structure of (E)-7-fluoro-2-(3-fluorobenzylidene)-3,4-dihydronaphthalen-1(2H)-one, C17H12F2O1
  17. Crystal structure of tetrabutylammonium sulfanilate – 1-(diaminomethylene)thiourea (1/2)
  18. Crystal structure of [2,2′-{azanediyl)bis[(propane-3,1-diyl)(azanylylidene)methylylidene]} bis(3,5-dichlorophenolato)-κ2O,O′]-isothiocyanato-κN-iron(III), C21H19Cl4FeN4O2S
  19. Crystal structure of (4-chlorophenyl)(4-hydroxyphenyl)methanone, C13H9ClO2
  20. Crystal structure of 6,6′-((pentane-1,3-diylbis(azaneylylidene))bis(methaneylylidene))bis(2,4-dibromolphenolato-κ4 N,N′,O,O′)copper(II),) C19H16Br4CuN2O2
  21. Chlorido-(2,2′-(ethane-bis(5-methoxyphenolato))-κ4 N,N′,O,O′)manganese(III) monohydrate, C19H18Cl2CuN2O2
  22. Crystal structure of 2,6-di-tert-butyl-4-(4-methoxybenzylidene)cyclohexa-2,5-dien-1-one, C22H28O2
  23. Crystal structure of [6,6′-(((2,2-dimethylpropane-1,3-diyl)bis(azanylylidene))bis(methanylylidene))bis(2-chlorophenolato)-κ4N,N′,O,O′]copper(II)
  24. Crystal structure of 2-chloro-3-((thiophen-2-ylmethyl)amino)naphthalene-1,4-dione, C30H20O4N2Cl2S2
  25. Crystal structure of bis{hydridotris(3-trifluoromethyl-5-methylpyrazolyl-1-yl)borato-κN 3}manganese(II), C30H26B2F18MnN12
  26. Crystal structure of 1-(2-methylphenyl)-2-(2-methylbenzo[b]thienyl)-3,3,4,4,5,5-hexafluorocyclopent-ene, C21H14F6S
  27. Crystal structure of 2-(3-((carbamimidoylthio)methyl)benzyl)isothiouronium hexafluorophosphate monohydrate, C10H17F6N4OPS2
  28. Crystal structure of 4,5-diiodo-1,3-dimesityl-1H-1,2,3-triazol-3-ium chloride – chloroform (1/1), C21H23Cl4I2N3
  29. Crystal structure of azido-k1 N-{6,6′-((((methylazanediyl)bis(propane-3,1-diyl))bis(azanylylidene))bis(methanylylidene))bis(2,4-dibromophenolato)k5 N,N′,N″,O,O′}cobalt(III)-methanol (1/1)), C21H23Br4CoN6O3
  30. The crystal structure of 2-(4-((carbamimidoylthio)methyl)benzyl)isothiouronium hexafluorophosphate monohydrate, C10H17F6N4OPS2
  31. Crystal structure of 1,1′-(methane-1,1-diyl)bis(3-methyl-1H-imidazol-3-ium) bis(hexafluoridophosphate), C9H14F12N4P2
  32. Crystal structure of (4′E)-6′-(diethylamino)-2-[(E)-[(pyren-1-yl)methylidene]amino]-4′-{2-[(2E)-1,3,3-trimethyl-2,3-dihydro-1H-indol-2-ylidene]ethylidene}-1′,2,2′,3,3′,4′-hexahydrospiro[isoindole-1,9′-xanthene]-3-one, C54H48N4O2
  33. Crystal structure of poly[bis(μ2-2,6-bis(1-imidazoly)pyridine-κ2 N,N′)-bis(thiocyanato-κ1 N)copper(II)] dithiocyanate, C24H18CuN12S2
  34. Cones with a three-fold symmetry constructed from three hydrogen bonded theophyllinium cations that coat [FeCl4]− anions in the crystal structure of tris(theophyllinium) bis(tetrachloridoferrate(III)) chloride trihydrate, C21H33Cl9Fe2N12O9
  35. Crystal structure of 14-O-[(4-(4-hydroxypiperidine-1-yl)-6-methylpyrimidine-2-yl)thioacetyl]-mutilin monohydrate, C32H49N3O6S
  36. The crystal structure of (E)-3-chloro-2-(2-(4-methylbenzylidene)hydrazinyl)pyridine, C13H12ClN3
  37. The crystal structure of 4-phenyl-4-[2-(pyridine-4-carbonyl)hydrazinylidene]butanoic acid, C16H15N3O3
  38. The crystal structure of 6-amino-5-carboxypyridin-1-ium pentaiodide monohydrate C6H9I5N2O3
  39. Crystal structure of bis(μ3-oxido)-bis(μ2-2-formylbenzoato-k2O:O′)-bis(2-(dimethoxymethyl)-benzoato-κO)-oktakismethyl-tetratin(IV)
  40. Crystal structure of 2-((E)-(((E)-2-hydroxy-4-methylbenzylidene) hydrazineylidene)methyl)-4-methylphenol, C16H16N2O2
  41. Crystal structure of (E)-amino(2-((5-methylfuran-2-yl)methylene)hydrazinyl) methaniminium nitrate monohydrate, C14H26N10O10
  42. The crystal structure of N′-(2-chloro-6-hydroxybenzylidene)thiophene-2-carbohydrazide monohydrate, C12H11ClN2O3S
  43. Crystal structure of catena-poly[(μ2-1,1′-(biphenyl-4,4′-diyl)bis(1H-imidazol)-κ2N:N′)-bis(4-bromobenzoate-κ1O)zinc(II)], C64H44Br4N8O8Zn2
  44. The crystal structure of catena-poly[(1-(4-carboxybenzyl)pyridin-1-ium-4-carboxylato-κ1O)-(μ2-oxalato-κ4 O:O′:O″:O‴)dioxidouranium(VI)], C16H11NO10U
  45. Crystal structure of 3-allyl-4-(2-bromoethyl)-5-(4-methoxyphenyl)-2-phenylfuran, C22H21BrO2
  46. Halogen bonds in the crystal structure of 4,3′:5′,4″-terpyridine — 1,3-diiodotetrafluorobenzene (1/1), C21H11F4I2N3
  47. Crystal structure of 2-(1H-indol-3-yl)ethan-1-aminium 2-(4-acetylphenoxy)acetate, C20H22N2O4
  48. Chalcogen bonds in the crystal structure of 4,7-dibromo-2,1,3-benzoselenadiazole, C6H2Br2N2Se
  49. The crystal structure of 1,4-bis((1H-benzimidazol-2-yl)methyl)-piperazine-2,5-dione dihydrate, C20H22N6O4
  50. The crystal structure of C19H20O8
  51. The crystal structure of KNa3Te8O18·5H2O exhibiting a ∞2[Te4O9]2− layer
  52. Erratum
  53. Erratum to: Crystal structure of (Z)-3-(6-bromo-1H-indol-3-yl)-1,3-diphenylprop-2-en-1-one, C23H16BrNO
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