Startseite The crystal structure of 3-bromopicolinic acid, C6H4BrNO2
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The crystal structure of 3-bromopicolinic acid, C6H4BrNO2

  • Guang Huang ORCID logo EMAIL logo
Veröffentlicht/Copyright: 14. Oktober 2021

Abstract

C6H4BrNO2, orthorhombic, Pna21 (no. 33), a = 14.3975(12) Å, b = 7.5773(7) Å, c = 12.2500(10) Å, β = 90°, V = 1336.4(2) Å3, Z = 8, R gt (F) = 0.0281, wR ref (F 2) = 0.0536, T = 150(2) K.

CCDC no.: 2113913

The asymmetric unit of the title 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: Colorless block
Size: 0.25 × 0.15 × 0.10 mm
Wavelength: Mo Kα radiation (0.71073 Å)
μ: 6.08 mm−1
Diffractometer, scan mode: Bruker APEX-II, φ and ω
θ max, completeness: 26.4°, >99%
N(hkl)measured, N(hkl)unique, R int: 15,847, 2696, 0.054
Criterion for I obs, N(hkl)gt: I obs > 2 σ(I obs), 2341
N(param)refined: 183
Programs: Bruker [1], Olex2 [2], SHELX [3, 4]
Table 2:

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

Atom x y z U iso*/U eq
Br1 0.22803 (4) 0.52861 (7) 0.81495 (6) 0.03716 (14)
Br2 0.46236 (4) 0.82636 (10) 0.14898 (5) 0.04430 (17)
C1 0.3262 (4) 0.5618 (8) 0.5733 (5) 0.0336 (14)
C2 0.3808 (4) 0.6122 (8) 0.6736 (5) 0.0307 (14)
C3 0.3489 (4) 0.6082 (8) 0.7803 (5) 0.0317 (13)
C4 0.4073 (4) 0.6555 (8) 0.8646 (5) 0.0349 (14)
H4 0.385729 0.653693 0.937917 0.042*
C5 0.4973 (4) 0.7054 (8) 0.8414 (5) 0.0364 (15)
H5 0.539178 0.737623 0.897911 0.044*
C6 0.5243 (4) 0.7069 (8) 0.7339 (5) 0.0357 (15)
H6 0.585833 0.743315 0.717250 0.043*
C7 0.5299 (4) 0.8165 (8) 0.4021 (5) 0.0333 (13)
C8 0.6007 (3) 0.8671 (7) 0.3169 (5) 0.0308 (11)
C9 0.5811 (4) 0.8806 (8) 0.2070 (5) 0.0328 (14)
C10 0.6498 (4) 0.9304 (8) 0.1339 (5) 0.0372 (14)
H10 0.637243 0.939454 0.057940 0.045*
C11 0.7372 (4) 0.9665 (8) 0.1751 (5) 0.0375 (14)
H11 0.786326 1.000954 0.127834 0.045*
C12 0.7519 (4) 0.9514 (8) 0.2861 (5) 0.0384 (16)
H12 0.811946 0.977176 0.313956 0.046*
N1 0.4685 (3) 0.6596 (6) 0.6511 (6) 0.0326 (9)
N2 0.6860 (3) 0.9025 (7) 0.3558 (4) 0.0325(11)
O1 0.2493 (3) 0.6525 (6) 0.5614 (4) 0.0396 (10)
H1 0.226034 0.630712 0.500027 0.059*
O2 0.3556 (3) 0.4546 (6) 0.5101 (4) 0.0491 (12)
O3 0.5656 (3) 0.7083 (6) 0.4753 (3) 0.0361 (10)
H3 0.525885 0.687403 0.523783 0.054*
O4 0.4513 (3) 0.8729 (6) 0.4024 (4) 0.0449 (11)

Source of material

All starting materials were used as received. For the recrystallization 2.01 g (10 mmol) 3-bromopicolinic acid was mixed with 10 mL tetrahydrofuran and 1 mL deionized water under room temperature and was stirred to form a clear solution. The solution was filtered and evaporated naturally. Several days later, colorless block crystals of the title compound were obtained, yield 82% (based on the raw 3-bromopicolinic acid).

Experimental details

The structure was solved by direct methods with the SHELXS-2018 program. All H-atoms from C and N atoms were positioned with idealized geometry and refined isotropic (U iso (H) = 1.2U eq (C)) using a riding model with C–H = 0.95 Å. The H-atoms from O atoms positioned using peaks from the difference Fourier map and refined isotropic with the distance of O1–H1 = 0.84 Å and O3–H3 = 0.84 Å (U iso (H) = 1.5U eq (O)). The distance of Br1 and O4 is 3.034 Å, which indicates a short inter HL⃛A contact between Br1 and O4, resulting an Alert level B for checkcif. But there is no reasonable hydrogen bond. There may be some intermolecular weak interaction between Br1 and O4.

Comment

Among the mono-bromide-substituted picolinic acids, including 4-, 5- and 6-bromide-substituted picolinic acids and their derivatives, only the crystal structures of 4-bromopico-linic acid and methyl 5-bromo-6-methylpicolinate have been reported [5, 6]. Some of their metal complexes [7], [8], [9], [10], [11], [12], [13], [14], [15] and organometal complexes [16], [17], [18], [19], [20], [21], [22] have been also reported elsewhere. To the best of our knowledge, the crystal structures of 3-bromide-substituted picolinic acid has not been reported. Herein we reported the crystal structure of 3-bromopicolinic acid.

The asymmetric unit is made of two 3-bromopicolinic acid molecules, which show a slightly different conformation about the C1–C2 and C7–C8 bond, respectively. All bond lengths of the title compound are comparable with the reported results [5], [6], [7], [8], [9], [10], [11], [12], [13], [14], [15], [16], [17], [18], [19], [20], [21], [22]. There is one dimensional chain generated by hydrogen bonds O1–H1⃛N2 and O3–H3⃛N1.


Corresponding author: Guang Huang, Sino-Portugal Belt and Road Joint Laboratory on Science of Cultural Heritage Conservation, City University of Macau, Macau, P. R. China; Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, Guangdong, P. R. China, E-mail:

  1. Author contributions: The author has accepted responsibility for the entire content of this submitted manuscript and approved submission.

  2. Research funding: None declared.

  3. Conflict of interest statement: The author declares no conflicts of interest regarding this article.

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Received: 2021-08-28
Accepted: 2021-10-05
Published Online: 2021-10-14
Published in Print: 2021-12-20

© 2021 Guang Huang, 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-2021-0343/html
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