Startseite The crystal structure of α-(meta-methoxyphenoxy)-ortho-tolylic acid, C15H14O4
Artikel Open Access

The crystal structure of α-(meta-methoxyphenoxy)-ortho-tolylic acid, C15H14O4

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

Abstract

C15H14O4, monoclinic, C2/c (no. 15), a = 27.1122(8) Å, b = 6.4295(2) Å, c = 14.7495(4) Å, β = 91.7070(10)°, V = 2569.96(13) Å3, Z = 8, Rgt(F) = 0.0387, wRref(F2) = 0.1091, T = 200 K.

CCDC no.: 2048026

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:Green platelet
Size:0.59 × 0.35 × 0.24 mm
Wavelength:Mo Kα radiation (0.71073 Å)
μ:0.10 mm−1
Diffractometer, scan mode:Bruker APEX-II, φ and ω
θmax, completeness:28.3°, >99%
N(hkl)measured, N(hkl)unique, Rint:11,956, 3185, 0.014
Criterion for Iobs, N(hkl)gt:Iobs > 2 σ(Iobs), 2710
N(param)refined:173
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
O10.20646 (3)−0.38416 (14)0.57101 (6)0.0395 (2)
H10.234382−0.3886080.5512170.059*
O20.20664 (3)−0.07355 (13)0.50352 (6)0.0378 (2)
O30.08376 (3)0.29500 (13)0.46669 (6)0.0353 (2)
O40.19783 (3)0.68803 (15)0.29798 (6)0.0449 (2)
C10.18548 (4)−0.20648 (17)0.54735 (7)0.0285 (2)
C20.12336 (4)0.15614 (17)0.49000 (7)0.0287 (2)
H2A0.1501460.2327380.5225710.034*
H2B0.1368900.0954310.4342850.034*
C30.20937 (6)0.8607 (3)0.24244 (12)0.0591 (4)
H3A0.1989910.9894510.2719220.089*
H3B0.1920340.8469980.1834890.089*
H3C0.2450340.8649060.2335990.089*
C110.13397 (4)−0.18336 (17)0.57777 (7)0.0273 (2)
C120.10408 (4)−0.01430 (16)0.54958 (7)0.0268 (2)
C130.05531 (4)−0.00951 (18)0.57781 (8)0.0320 (2)
H130.0345080.1026470.5594330.038*
C140.03673 (4)−0.1654 (2)0.63214 (9)0.0378 (3)
H140.003282−0.1602420.6494670.045*
C150.06650 (5)−0.3283 (2)0.66127 (9)0.0393 (3)
H150.053924−0.4329580.6997270.047*
C160.11495 (4)−0.33715 (18)0.63374 (8)0.0339 (3)
H160.135462−0.4493440.6532140.041*
C210.09531 (4)0.45783 (17)0.41143 (7)0.0297 (2)
C220.14201 (4)0.49436 (17)0.37922 (7)0.0307 (2)
H220.1684830.4031260.3948650.037*
C230.14990 (4)0.66640 (18)0.32354 (7)0.0323 (2)
C240.11140 (5)0.79812 (18)0.29836 (8)0.0366 (3)
H240.1165920.9128080.2591720.044*
C250.06482 (5)0.75787 (19)0.33206 (8)0.0382 (3)
H250.0382510.8479790.3156560.046*
C260.05608 (4)0.59172 (18)0.38835 (8)0.0344 (3)
H260.0241300.5683320.4110630.041*

Source of material

The compound was prepared upon alkaline hydrolysis of methyl α-(meta-methoxyphenyl)-tolylate. Crystals suitable for the diffraction study were obtained upon slow evaporation of a solution of the 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 H atoms of the methyl group were allowed to rotate with a fixed angle around the C–C bond to best fit the experimental electron density (HFIX 137 in the SHELX program suite [3]), with U(H) set to 1.5Ueq(C).

The carboxylic H atom was allowed to rotate with a fixed angle around the C–O bond to best fit the experimental electron density (HFIX 147 in the SHELX program suite [3]), with U(H) set to 1.5Ueq(O).

Comment

Benzoic acid has found widespread use as a ligand in coordination chemistry for a variety of transition metals and elements from the s- and p-block of the periodic system of the elements. It can act as a neutral or – upon deprotonation – an anionic ligand and serve as mono- or bidentate ligand. By varying the substituents on the phenyl moiety, the acidity of the carboxylic acid group can be fine-tuned. Particular interest rests in benzoic acid derivatives showing an asymmetric pattern of substituents on the aromatic moiety due to different possible orientations of the ligand in coordination compounds and the possible formation of stereoisomeric products. In continuation of our interest in the structural diversity of carboxylic acids [7], [8], [9], [10], [11], [12], [13], [14 & references cited therein] it seemed interesting to determine the crystal structure of the title compound to enable comparative studies. Later work will focus on a comprehensive study aimed at rationalizing the coordination behaviour of various benzoic acid derivatives towards a number of transition metals in dependence of the pH value of the reaction batches to enable comparative studies.

The molecule is essentially flat with the largest deviation of an atom from the least-squares plane defined by all non-hydrogen atoms measured at −0.242(1) Å. C–O bond lengths of 1.2246(13) and 1.3186(13) Å in the carboxyl group are in good agreement with corresponding values found in the Cambridge Structural Database [15]. C–C–C angles in the phenyl ring of the benzoic acid moiety cover a range of 117.97(10)°–121.26(11)° with the smallest angle found on the carbon atom bearing the aromatic substituent. The least-squares planes defined by the non-hydrogen atoms of the carboxylic acid group and the carbon atoms of the phenyl moiety it is bonded to intersect at an angle of 7.05(13)°, while the least-squares planes defined by the respective carbon atoms of both aromatic moieties enclose an angle of 5.06(5)°.

In the crystal, caboxylic acid groups are involved in centrosymmetric hydrogen-bonded dimers, a pattern that has been the subject of a broader review recently [16]. In terms of graph-set analysis [17], [18], the descriptor for these hydrogen bonds is R22(8) at the unitary level. In addition, one can debate the presence of two C–H⋯π interactions that are supported by one hydrogen atom each on both phenyl moieties and invariably have the other aromatic system as acceptor. The shortest intercentroid distance between two aromatic systems was measured at 3.9462(7) Å and involves the two different aromatic moieties present in the molecule.


Corresponding author: Richard Betz, Department of Chemistry, Nelson Mandela University, Summerstrand Campus (South), University Way, Summerstrand, P.O. Box 77000, Port Elizabeth 6031, South Africa, E-mail:

Funding source: National Research Foundation

  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. Hosten, E. C., Betz, R. Crystal structure of 2-hydroxy-2-methyl-2-phenyl acetic acid hemihydrate, C9H11O3.50. Z. Kristallogr. NCS 2015, 230, 311–313. https://doi.org/10.1515/ncrs-2014-9020.Suche in Google Scholar

8. Betz, R., Gerber, T. I. A. Schalekamp, H. 2-Hydroxy-6-isopropyl-3-methylbenzoic acid. Acta Crystallogr. 2011, E67, o1063. https://doi.org/10.1107/s1600536811011998.Suche in Google Scholar

9. Betz, R., Gerber, T. I. A. 2-(Trifluoromethyl)benzoic acid. Acta Crystallogr. 2011, E67, o907. https://doi.org/10.1107/s1600536811009597.Suche in Google Scholar

10. Betz, R., Betzler, F., Klüfers, P. rac-2-Hydroxy-2-(2-nitrophenyl)acetic acid. Acta Crystallogr. 2007, E63, o4184. https://doi.org/10.1107/s1600536807047113.Suche in Google Scholar

11. Gerber, T., Betz, R. rac-3,3,3-Trifluorolactic acid. Acta Crystallogr. 2013, E69, o336. https://doi.org/10.1107/s1600536813003097.Suche in Google Scholar

12. Gerber, T., Betz, R. 3,3,3-Trifluoro-2-hydroxy-2-(trifluoromethyl)propionic acid. Acta Crystallogr. 2013, E69, o335. https://doi.org/10.1107/s1600536813003103.Suche in Google Scholar

13. Betz, R., Klüfers, P. 2,2-Dicyclopropylglycolic acid. Acta Crystallogr. 2007, E63, o4921. https://doi.org/10.1107/s1600536807061168.Suche in Google Scholar

14. Hosten, E. E., Betz, R. The crystal structure of 3,3,3-triphenylpropanoic acid, C21H18O2 – localization of hydrogen atoms. Z. Kristallogr. NCS accepted.Suche in Google Scholar

15. 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

16. Beyer, T., Price, S. L. Dimer or catemer? Low-energy crystal packings for small carboxylic acids. J. Phys. Chem. B 2000, 104, 2647–2655. https://doi.org/10.1021/jp9941413.Suche in Google Scholar

17. 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

18. 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: 2020-11-05
Accepted: 2020-12-04
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
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