Startseite The crystal structure of para-nitrobenzylbromide, C7H6BrNO2 – A second polymorph and correction of 3D coordinates
Artikel Open Access

The crystal structure of para-nitrobenzylbromide, C7H6BrNO2 – A second polymorph and correction of 3D coordinates

  • Eric C. Hosten ORCID logo und Richard Betz ORCID logo EMAIL logo
Veröffentlicht/Copyright: 12. Februar 2021

Abstract

C7H6BrNO2, orthorhombic, P212121 (no. 19), a = 4.7019(6) Å, b = 6.4700(9) Å, c = 25.283(4) Å, V = 769.14(19) Å3, Z = 4, Rgt(F) = 0.0294, wRref(F2) = 0.0671, T = 200 K.

CCDC no: 2050071

The molecular 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:Colourless rod
Size:0.38 × 0.12 × 0.11 mm
Wavelength:Mo Kα radiation (0.71073 Å)
μ:5.29 mm−1
Diffractometer, scan mode:Bruker APEX-II, φ and ω
θmax, completeness:28.0°, 99%
N(hkl)measured, N(hkl)unique, Rint:6983, 1854, 0.035
Criterion for Iobs, N(hkl)gt:Iobs > 2 σ(Iobs), 1583
N(param)refined:101
Programs:Bruker [1], [2], SHELX [3], WinGX/ORTEP [4], Mercury [5], PLATON [6]
Table 2:

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

AtomxyzUiso*/Ueq
Br11.23357 (10)0.04014 (6)0.22432 (2)0.04408 (15)
O10.5682 (6)0.8376 (4)0.06872 (10)0.0376 (7)
O20.5052 (6)0.5864 (4)0.01375 (10)0.0357 (7)
N10.6222 (7)0.6632 (5)0.05236 (12)0.0275 (7)
C11.2296 (8)0.3067 (5)0.13533 (12)0.0243 (7)
C21.1623 (8)0.5066 (6)0.15216 (14)0.0297 (9)
H21.2528540.5623230.1825760.036*
C30.9648 (8)0.6240 (6)0.12488 (13)0.0271 (8)
H30.9172480.7593950.1364470.033*
C40.8378 (7)0.5399 (5)0.08028 (13)0.0230 (7)
C50.9028 (8)0.3436 (6)0.06217 (13)0.0256 (8)
H50.8142960.2898230.0313300.031*
C61.0993 (8)0.2277 (5)0.08992 (13)0.0270 (8)
H61.1463510.0926660.0780110.032*
C71.4360 (8)0.1792 (6)0.16603 (13)0.0305 (8)
H7A1.5882540.2685030.1804810.037*
H7B1.5247240.0749050.1426060.037*

Source of material

The compound was obtained commercially (Merck). Crystals suitable for the diffraction study were taken directly from the provided product.

Experimental details

Carbon-bound H atoms were placed in calculated positions (C–H 0.95 Å for aromatic carbon atoms, C–H 0.99 Å for methylene groups) and were included in the refinement in the riding model approximation, with U(H) set to 1.2Ueq(C).

The compound was refined as a two-component inversion twin with a volume ratio of 94.4:5.6.

Comment

Benzylic halogenides are versatile synthons in Organic Chemistry. Resonance effects greatly assist in displacing the halogen atom in the wake of nucleophilic substitution reactions [7]. A vast series of such derivatives bearing functional groups on the aromatic system has been synthesized and characterized over the last century. In continuation of our interest in the structural chemistry of halogenated derivatives of benzene [8], [9], [10], [11], [12], [13], [14], [15], [16] the molecular and crystal structure of the title compound were determined. While a structural analysis is apparent in the literature (ref. Code: WIQDUV) [17], the latter is plagued by two problems: first, the structure was determined based on powder diffraction data which precludes the anisotropic treatment of the atoms during the refinement procedure and – second – an inspection of the 3D coordinates reveals a number of questionable features such as an undulated aromatic system, involving the pertaining hydrogen atoms to create linear zig-zag patterns. Furthermore, the cell constants found in this study differ from the ones reported earlier [17]. The molecular and crystal structure of the chlorinated equivalent have been determined previously [18], [19].

The title crystal solution shows the presence of 4-nitrobenzylbromide. The C–Br bond length of 1.971(4) Å and the nearly equal N–O bond lengths of 1.226(4) and 1.228(4) Å are in good agreement with pertaining values found for other comparable compounds whose metrical parameters have been deposited with the Cambridge Structural Database [20]. Intracyclic C–C–C angles span a range of 118.6(3)°–122.3(3)° with the smaller value being present on both carbon atoms in ortho-position to the nitro group and the largest value on the carbon atom bearing the latter substituent. The least-squares planes as defined by the respective atoms of the nitro group and the non-hydrogen atoms of the bromomethyl group and its pertaining ipso-carbon atom enclose angles of 2.0(4)° and 84.8(3)°, respectively, with the first value being indicative of resonance involving the nitro group.

In the crystal, C–H⋯O contacts whose range falls by more than 0.1 Å below the sum of van-der-Waals radii of the atoms participating in them. These are established between one of the hydrogen atoms of the methylene group as well as one of the aromatic CH groups in ortho-position to the halogenated substituent and one of the oxygen atoms of the nitro group as acceptor. In terms of graph-set analysis [21], [22], the descriptor for these contacts is C11(6)C11(8) on the unary level. In total, the molecules are connected to chains along [110]. One could discuss a possible C–H⋯π interaction, however, the latter is characterized by an angle deviating strongly from linearity. π-Stacking is not a prominent feature in the crystal structure of the title compound with the shortest distance found between two centers of gravity measured at 4.702(2) Å.


Corresponding author: Richard Betz, Department of Chemistry, Nelson Mandela University, Summerstrand Campus (South), University Way, Summerstrand, P.O. Box 77000, Port Elizabeth6031, South Africa, E-mail:

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

  2. Research funding: The corresponding author thanks the National Research Foundation for financial support.

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

References

1. Bruker. APEX2; Bruker AXS Inc.: Madison, Wisconsin, USA, 2012.Suche in Google Scholar

2. Bruker. SADABS; Bruker AXS Inc.: Madison, Wisconsin, USA, 2008.Suche in Google Scholar

3. Sheldrick, G. M. A short history of SHELX. Acta Crystallogr. 2008, A64, 112–122. https://doi.org/10.1107/s0108767307043930.Suche in Google Scholar

4. Farrugia, L. J. WinGX and ORTEP for Windows: an update. J. Appl. Crystallogr. 2012, 45, 849–854. https://doi.org/10.1107/s0021889812029111.Suche in Google Scholar

5. Macrae, C. F., Bruno, I. J., Chisholm, J. A., Edgington, P. R., McCabe, P., Pidcock, E., Rodriguez-Monge, L., Taylor, R., van de Streek, J., Wood, P. A. Mercury CSD 2.0 – new features for the visualization and investigation of crystal structures. J. Appl. Crystallogr. 2008, 41, 466–470. https://doi.org/10.1107/s0021889807067908.Suche in Google Scholar

6. Spek, A. L. Structure validation in chemical crystallography. Acta Crystallogr. 2009, D65, 148–155. https://doi.org/10.1107/s090744490804362x.Suche in Google Scholar

7. Becker, H. G. O., Beckert, R., Domschke, G., Fanghänel, E., Habicher, W. D., Metz, P., Pavel, D., Schwetlick, K. Organikum – Organisch-Chemisches Grundpraktikum, 21st ed.; Wiley-VCH: Weinheim, 2000.Suche in Google Scholar

8. Betz, R., McCleland, C., Glover, S. 2-(4-Iodophenoxy)acetamide. Acta Crystallogr. 2011, E67, o1928. https://doi.org/10.1107/s1600536811025840.Suche in Google Scholar

9. Betz, R., Klüfers, P. 1-Bromomethyl-2-iodobenzene. Acta Crystallogr. 2007, E63, o4753. https://doi.org/10.1107/s1600536807058151.Suche in Google Scholar

10. Betz, R., Klüfers, P. 2-Iodobenzaldehyde. Acta Crystallogr. 2007, E63, o4879. https://doi.org/10.1107/s1600536807061272.Suche in Google Scholar

11. Betz, R., Gerber, T. 2-Chloro-6-fluorobenzoic acid. Acta Crystallogr. 2011, E67, o1329. https://doi.org/10.1107/s1600536811016734.Suche in Google Scholar

12. Schmitt, B., Gerber, T., Hosten, E., Betz, R. 4-Bromobenzoyl 4-bromobenzoate monohydrate. Acta Crystallogr. 2011, E67, o1662. https://doi.org/10.1107/s1600536811022264.Suche in Google Scholar

13. Betz, R., Klüfers, P. N-(2-Iodophenylmethyl) hexamethylenetetraminium bromide dihydrate. Acta Crystallogr. 2007, E63, o4279. https://doi.org/10.1107/s1600536807048623.Suche in Google Scholar

14. Betz, R., Klüfers, P. 2,4,6-Trifluoroaniline. Acta Crystallogr. 2008, E64, o2242. https://doi.org/10.1107/s1600536808035083.Suche in Google Scholar

15. Betz, R., Gerber, T. 2,4,6-Trifluorobenzoic acid. Acta Crystallogr. 2011, E67, o539. https://doi.org/10.1107/s160053681100345x.Suche in Google Scholar

16. Vijesh, A. M., Isloor, A. M., Gerber, T., van Brecht, B., Betz, R. 1,5-Dibromo-2,4-dimethoxybenzene. Acta Crystallogr. 2012, E68, o3479. https://doi.org/10.1107/s1600536812047848.Suche in Google Scholar

17. Goubitz, K., Sonneveld, E. J., Chernyshev, V. V., Yatsenko, A. V., Zhukov, S. G., Reiss, C. A., Schenk, H. Crystal structure determination of a series of benzene derivatives from powder data. Z. Kristallogr. Cryst. Mater. 1999, 214, 469–474. https://doi.org/10.1524/zkri.1999.214.8.469.Suche in Google Scholar

18. Aziz-ur-Rehman, A., Yasir, A., Akkurt, M., Abbasi, M. A., Jahangir, M., Khan, I. U. 1-Chloromethyl-4-nitrobenzene. Acta Crystallogr. 2010, E66, o1667. https://doi.org/10.1107/s1600536810022191.Suche in Google Scholar

19. Betz, R., Britten-Kelly, M., McCleland, C., Hosten, E. Refinement of the crystal structure of 1-chloromethy 1-nitrobenzene, C7H6ClNO2, at 200 K. Z. Kristallogr. NCS 2011, 226, 583–584. https://doi.org/10.1524/ncrs.2011.0261.Suche in Google Scholar

20. Allen, F. H. The Cambridge Structural Database: a quarter of a million crystal structures and rising. Acta Crystallogr. 2002, B58, 380–388. https://doi.org/10.1107/s0108768102003890.Suche in Google Scholar

21. Bernstein, J., Davis, R. E., Shimoni, L., Chang, N.-L. Patterns in hydrogen bonding: functionality and graph set analysis in crystals. Angew Chem. Int. Ed. Engl. 1995, 34, 1555–1573. https://doi.org/10.1002/anie.199515551.Suche in Google Scholar

22. Etter, M. C., MacDonald, J. C., Bernstein, J. Graph-set analysis of hydrogen-bond patterns in organic crystals. Acta Crystallogr. 1990, B46, 256–262. https://doi.org/10.1107/s0108768189012929.Suche in Google Scholar

Received: 2020-11-01
Accepted: 2020-12-14
Published Online: 2021-02-12
Published in Print: 2021-03-26

© 2020 Eric C. Hosten and Richard Betz, 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. The crystal structure of 4-hydroxybenzene-1,3-diaminium dichloride, C6H10Cl2N2O
  4. The crystal structure of 3-chloropropylammonium chloride, C3H9Cl2N
  5. The crystal structure of 1-chloro-2-(dimethylamino)ethane hydrochloride, C4H11Cl2N
  6. Crystal structure of N-(2-(trifluoromethyl)phenyl)hexanamide, C13H16F3NO
  7. Redetermination of the crystal structure of para-toluidine, C7H9
  8. The crystal structure of bis(1,3-dihydroxy-2-methylpropan-2-aminium) carbonate, C9H24N2O7
  9. The crystal structure of 4-chloro-1-methylpiperidin-1-ium chloride, C6H13Cl2N
  10. Crystal structure of (Z)-3-(6-bromo-1H-indol-3-yl)-1,3-diphenylprop-2-en-1-one, C23H16BrNO
  11. The crystal structure of ethyl 2-amino-4-(3,5-difluorophenyl)-7,7-dimethyl-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carboxylate, C20H21F2NO4
  12. Crystal structure of 6,6'‐((1E,1'E)‐(propane‐1,3‐diylbis(azaneylylidene))bis(methaneylylidene))bis(3‐bromophenol), C34H32Br4N4O4
  13. The crystal structure of (E)-2-(2-((2-picolinoylhydrazono)methyl)phenoxy)acetic acid dihydrate, C15H17N3O6
  14. Crystal structure of (E)-4-bromo-N′-(3-chloro-2-hydroxybenzylidene)benzohydrazide, C14H10BrClN2O2
  15. Crystal structure of N,N′-bis(4-bromosalicylidene) ethylene-1,2-diaminopropan, C34H32Br4N4O4
  16. Crystal structure of 4-bromo-N′-[(3-bromo-2-hydroxyphenyl)methylidene]benzohydrazide methanol solvate, C15H14Br2N2O3
  17. The crystal structure of 1,2-bis(1H-benzo[d]imidazol-2-yl)ethane-1,2-diol — N-(2-aminophenyl)-3-(1H-benzo[d]imidazol-2-yl)-2,3-dihydroxypropanamide (1/1), C32H30N8O5
  18. The crystal structure of para-trifluoromethyl-aniline hemihydrate, C14H14F6N2O
  19. Redetermination of the crystal structure of 2-amino-2-methyl-propane-1,3-diole, C4H11NO2
  20. The crystal structure of methacholine chloride, C8H18ClNO2
  21. Crystal structure of 5,7,7-trimethyl-4,6,7,8-tetrahydrocyclopenta[g]isochromen-1(3H)-one, C15H18O2
  22. Crystal structure of poly[diammine-bis(μ4-4-hydroxypyridine-3-sulfonato-κ5N:O, O′:O′′:O′′)(μ2-pyrazinyl-κ2N:N′)tetrasilver(I)], C7H8Ag2N3O4S
  23. Crystal structure of ethyl (E)-5-(((3′,6′-bis(ethylamino)-3-oxospiro[isoindoline-1,9′-xanthen]-2-yl)imino)methyl)-2,4-dimethyl-1H-pyrrole-3-carboxylate — ethanol (1/1), C38H45N5O5
  24. Crystal structure of 4-bromo-N′-[(3-chloro-2-hydroxyphenyl)methylidene]benzohydrazide, C14H7Br2N2O2
  25. Redetermination of the crystal structure of 3,3,3-triphenylpropanoic acid, C21H18O2 – Deposition of hydrogen atomic coordinates
  26. Structure redetermination of dextromethorphan hydrobromide monohydrate, C18H28BrNO2 – localization of hydrogen atoms
  27. Crystal structure of tris(azido-κ1N)-(N-(2-aminoethyl)-N-methyl-1,3-propanediamine-κ3N,N′,N′′)cobalt(III), C7H19CoN12
  28. Crystal structure of tetraaqua-bis(1H-indazole-6-carboxylate-κN)cadmium (II), C16H18CdN4O8
  29. Crystal structure of dichloride-bis(1-propylimidazole-κ1N)zinc(II), C12H20Cl2N4Zn
  30. Crystal structure of (E)-resveratrol 3-O-β-D-xylopyranoside, C19H22O8
  31. Crystal structure of 3,3′-(1,2-phenylene-bis(methylene))bis(1-vinyl- 1H-imidazol-3-ium) bis(hexafluoro phosphate)(V), C18H20F12N4P2
  32. Crystal structure of diaqua[bis(benzimidazol-2-yl-methyl)amine-κ3N,N′,N″]-phthalato-κ1O-nickel(II)-methanol (1/2), C26H31N5NiO8
  33. Crystal structure of 6,7-difluoro-1-methyl-3-(trifluoromethyl)quinoxalin-2(1H)-one, C10H5F5N2O
  34. Crystal structure of dichlorido-bis(1-hexyl-1H-benzotriazole-k1N)zinc(II), C24H34N6Cl2Zn
  35. The crystal structre of 2-(4-bromophenyl)-2,3-dihydro-1H-naphtho[1,8-de][1,3,2]diazaborinine, C16H12BBrN2
  36. Crystal structure of diethyl 3,9-bis(4-fluorophenyl)-6,12-diphenyl-3,9-diazapentacyclo[6.4.0.02,7.04,11]dodecane-1,5-dicarboxylate, C40H36F2N2O4
  37. Crystal structure of (E)-7-methoxy-2-((5-methoxypyridin-3-yl)methylene)-3,4- dihydronaphthalen-1(2H)-one, C18H17NO3
  38. Crystal structure of (E)-2-chloro-6-(((1,3-dihydroxy-2-(oxidomethyl)propan-2-yl)imino)methyl)phenolate-κ3N,O,O’)manganese(IV), C22H24Cl2MnN2O8
  39. The crystal structure of α-(meta-methoxyphenoxy)-ortho-tolylic acid, C15H14O4
  40. The crystal structure of N-(2-chloroethyl)-N,N-diethylammonium chloride, C6H15Cl2N
  41. The crystal structure of tris(2,3,4,6,7,8,9,10-octahydro-1H-pyrimido[1,2-a]azepin-5-ium) trihydrodecavanadate(V), C27H54N6O28V10
  42. Crystal structure of 1,3-bis(octyl)benzimidazolium perchlorate C23H39ClN2O4
  43. Crystal structure of tetrakis[(Z)-(2-(1-(furan-2-yl)-2-methylpropylidene)-1-phenylhydrazin-1-ido-κ2N,N′)] zirconium(IV), C56H60N8O4Zr
  44. The crystal structure of 2-(naphthalen-2-yloxy)-4-phenyl-6-(prop-2-yn-1-yloxy)-1,3,5-triazine, C22H15N3O2
  45. The crystal structure of trimethylsulfonium tris(trifluoromethylsulfonyl)methanide, C7H9F9O6S4
  46. Crystal structure of 4-bromo-N′-[3,5-dichloro-2-hydroxyphenyl)methylidene]benzohydrazide methanol solvate, C15H13BrCl2N2O3
  47. The crystal structure of 4-(4-bromophenyl)-2-(3-(4-bromophenyl)-5-(4-fluorophenyl)-4,5-dihydro-1H-pyrazol-1-yl)thiazole, C24H16Br2FN3S
  48. The crystal structure of N-(adamantan-1-yl)-piperidine-1-carbothioamide, C16H26N2S
  49. The crystal structure of 1-phenyl-N-(4,5,6,7-tetrabromo-1,3-dioxoisoindolin-2-yl)-5-(thiophen-2-yl)-1H-pyrazole-3-carboxamide-dimethylformamide (1/1) C22H10Br4N4O3S
  50. The crystal structure of benzeneseleninic acid anhydride, C12H10O3Se2
  51. The crystal structure of diphenyalmine hydrochloride antimony trichloride co-crystallizate, C12H12Cl4NSb – Localization of hydrogen atoms
  52. The crystal structure of para-nitrobenzylbromide, C7H6BrNO2 – A second polymorph and correction of 3D coordinates
  53. Crystal structure of catena-poly[(5H-pyrrolo[3,2-b:4,5-b′]dipyridine-κ2N,N′)-(μ4-hexaoxidodivanadato)dizinc(II)],C10H9N3O6V2Zn
  54. Crystal structure of N,N′-(2-hydroxypropane-1,3-diyl)bis(pyridine-2-aldimine)-κ5N,N′,N′′,N′′′,O]-tris(nitrato-κ2O,O′) cerium(III), C15H16CeN7O10
  55. Synthesis and crystal structure of oktakis(dimethylsulphoxide-κ1O)gadolinium(III) [tetrabromido-μ2-bromido-μ2-sulfido-di-μ3-sulfido-μ4-sulfido-tetracopper(I)-tungsten(VI)], C16H48O8S12Br5Cu4GdW
  56. Crystal structure of {tris((1H-benzo[d]imidazol-2- yl)methyl)amine-κ4N,N′,N′′,N′′′}-(succinato-κ2O,O′)nickel(II) – methanol (1/4), C32H41N7NiO8
  57. Crystal structure of catena-poly[trans-tetraaqua(μ2-1,1′-(biphenyl-4,4′-diyl)bis(1H-imidazol)-k2N:N′)cobalt(II)] dinitrate – 1,1′-(biphenyl-4,4′-diyl)bis(1H-imidazol) – water (1/3/2), C72H68CoN18O12
  58. Crystal structure of bis(μ2-2-oxido-2-phenylacetate-κ3O:O,O′)-bis(1-isopropoxy-2-oxo-2-phenylethan-1-olato-κ2O,O′)-bis(propan-2-olato-κ1O)dititanium(IV), C44H52O14Ti2
  59. The crystal structure of 5-carboxy-2-(hydroxymethyl)-1H-imidazol-3-ium-4-carboxylate, C6H8N2O6
  60. The crystal structure of 2,6-dibromo-4-fluoroaniline, C6H4Br2FN
  61. The crystal structure of 4-chloro-N-(2-phenoxyphenyl)benzamide, C19H14ClNO2
  62. The crystal structure of 2-methyl-β-naphthothiazole, C12H9NS
Heruntergeladen am 14.11.2025 von https://www.degruyterbrill.com/document/doi/10.1515/ncrs-2020-0564/html
Button zum nach oben scrollen