Startseite Redetermination of the crystal structure of 3,3,3-triphenylpropanoic acid, C21H18O2 – Deposition of hydrogen atomic coordinates
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Redetermination of the crystal structure of 3,3,3-triphenylpropanoic acid, C21H18O2 – Deposition of hydrogen atomic coordinates

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

Abstract

C21H18O2, triclinic, P1 (no. 2), a = 9.8213(6) Å, b = 9.9212(6) Å, c = 10.0400(6) Å, α = 65.510(2)°, β = 63.539(2)°, γ = 84.842(2)°, V = 791.59(8) Å3, Z = 2, Rgt(F) = 0.0463, wRref(F2) = 0.1101, T = 200 K.

CCDC no.: 2047042

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 block
Size:0.42 × 0.21 × 0.12 mm
Wavelength:Mo Kα radiation (0.71073 Å)
μ:0.08 mm−1
Diffractometer, scan mode:Bruker APEX-II, φ and ω
θmax, completeness:28.4°, >99%
N(hkl)measured, N(hkl)unique, Rint:22,458, 3952, 0.023
Criterion for Iobs, N(hkl)gt:Iobs > 2 σ(Iobs), 3109
N(param)refined:209
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
O10.81381 (13)0.95368 (14)0.18355 (15)0.0454 (3)
H10.9001341.0037340.1325790.068*
O20.91625 (12)0.87683 (14)−0.01574 (15)0.0456 (3)
C10.80645 (16)0.88018 (16)0.10321 (18)0.0305 (3)
C20.64473 (15)0.80895 (17)0.17788 (18)0.0310 (3)
H2A0.5793790.8907110.1649300.037*
H2B0.6109780.7518980.2970200.037*
C30.60741 (14)0.70288 (15)0.11586 (16)0.0233 (3)
C110.43200 (14)0.69591 (14)0.17481 (16)0.0235 (3)
C120.33224 (16)0.66003 (16)0.33964 (17)0.0300 (3)
H120.3729710.6404370.4149010.036*
C130.17508 (16)0.65255 (18)0.39514 (19)0.0361 (3)
H130.1094020.6281440.5076410.043*
C140.11298 (16)0.68042 (18)0.2877 (2)0.0360 (3)
H140.0051960.6760790.3258150.043*
C150.20923 (16)0.71448 (17)0.1251 (2)0.0334 (3)
H150.1674680.7326180.0509630.040*
C160.36747 (15)0.72250 (15)0.06865 (17)0.0278 (3)
H160.4324080.746449−0.0439040.033*
C210.65180 (15)0.54540 (15)0.19076 (16)0.0261 (3)
C220.80182 (17)0.52637 (19)0.16792 (19)0.0378 (4)
H220.8741390.6115660.1156920.045*
C230.8473 (2)0.3852 (2)0.2201 (2)0.0470 (4)
H230.9501410.3748040.2030980.056*
C240.7445 (2)0.2600 (2)0.2965 (2)0.0481 (5)
H240.7763440.1634430.3308730.058*
C250.5952 (2)0.27615 (19)0.3225 (2)0.0451 (4)
H250.5231550.1903910.3766290.054*
C260.54960 (18)0.41780 (17)0.26968 (19)0.0352 (3)
H260.4463090.4273230.2880510.042*
C310.68874 (14)0.76403 (14)−0.07229 (16)0.0234 (3)
C320.70684 (17)0.91619 (16)−0.17119 (19)0.0337 (3)
H320.6737640.984383−0.1219340.040*
C330.7721 (2)0.96903 (18)−0.3394 (2)0.0450 (4)
H330.7842571.073210−0.4045990.054*
C340.82012 (19)0.87222 (19)−0.41482 (19)0.0418 (4)
H340.8655320.909320−0.5308470.050*
C350.80099 (16)0.72135 (17)−0.31882 (18)0.0315 (3)
H350.8323930.653567−0.3687120.038*
C360.73593 (15)0.66801 (15)−0.14932 (17)0.0259 (3)
H360.7234290.563687−0.0846570.031*

Source of material

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

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 the methylene group) and were included in the refinement in the riding model approximation, with U(H) set to 1.2Ueq(C).

The H atom of the hydroxyl group 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

While the first members of the homologous series of aliphatic carboxylic acids constitute a family of liquid substances at room temperature, the introduction of halogen atoms, additional hydroxyl groups or aromatic moieties in the backbone quickly results in a marked increase of melting points and subsequent tendency to form crystalline substances at ambient conditions which allows for the determination of metrical parameters on grounds of diffraction studies which enables comparative studies in case the acids are to be encountered as ligands in coordination compounds. In continuation of our interest in the structures of functionalized carboxylic acids [7], [8], [9], [10], [11], [12], [13], [14] the crystal and molecular structure of the title compound was determined to gain an understanding for the effects the introduction of three bulky phenyl groups on the terminal carbon atom will have. Structural information is at hand for a co-crystallizate of the title compound and 2-aminopyrimidine [15]. Furthermore, the structure of the title compound as such has been reported earlier [16], however, while the author included the hydrogen atoms during the refinement of the structure model no coordinates of the latter atoms were deposited. As this precludes an assessment of the influence hydrogen-supported interactions might have on the overall structure that go beyond the apparent patterns derivable from plain geometric positioning of these lighter atoms on their respective carrier atoms the present study – whose quality is higher than the data already at hand – was conducted to close this gap.

The title crystal structure shows the presence of a derivative of propanoic acid bearing three phenyl groups as substituents on the terminal carbon atom. C–O bond lengths of 1.2120(18) and 1.3179(17) Å are in good agreement with values reported for other carboxylic acids whose metrical parameters have been deposited with the Cambridge Structural Database [17]. Intracyclic C–C–C angles in all three phenyl rings show vast similarity with the smallest and the largest angle pairing up as 117.60(12)° and 121.17(13)°, 117.42(14)° and 121.39(15)° and 117.61(13)° and 121.40(13)°, respectively, with the smallest angle invariably found on the carbon atom directly bonded to the alkyl scaffold and the largest angle directly in ortho-position to the latter atom. The least-squares planes as defined by the respective carbon atoms of the three individual aromatic moieties enclose angles of 75.95(8)°, 79.14(8)° and 83.92(9)°.

In the crystal, classical hydrogen bonds of the O–H⋯O type are observed that give rise to the familiar pattern of centrosymmetric carboxylic acid dimer formation in between the carboxyl groups of two molecules. In terms of graph-set analysis [18], [19], the descriptor for these hydrogen bonds is R22(8) on the unary level. Furthermore, one can discuss the presence of four C–H⋯π contacts with three of the latter observed intramolecular between the propeller-like orientated phenyl groups. The last C–H⋯π contact extends the classical carboxylic acid dimers to infinite chains along [1 1 0]. π-Stacking is not a prominent feature in the crystal structure of the title compound as the shortest distance in between two centers of gravity was measured at 4.7613(10) Å.


Corresponding author: Dr. Richard Betz, Department of Chemistry, Nelson Mandela University, Summerstrand Campus (South), University Way, Summerstrand, PO Box 77000, Port Elizabeth, 6031, 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. 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

8. Betz, R., Klüfers, P., Mangstl, M. M. tert-Butylglycolic acid. Acta Crystallogr. 2007, E63, o4144; https://doi.org/10.1107/s1600536807046156.Suche in Google Scholar

9. Schalekamp, H., Hosten, E. C., Betz, R. Redetermination of the crystal structure of endo-2-carboxy-bicyclo[2.2.1]-heptane, C8H12O2. Z. Kristallogr. NCS 2015, 230, 33–34; https://doi.org/10.1515/ncrs-2014-0235.Suche in Google Scholar

10. Betz, R., Klüfers, P. 1-Hydroxycyclopropane-1-carboxylic acid. Acta Crystallogr. 2007, E63, o3891; https://doi.org/10.1107/s1600536807041256.Suche in Google Scholar

11. Betz, R., Klüfers, P. 1-Hydroxycyclobutane-1-carboxylic acid. Acta Crystallogr. 2007, E63, o4032; https://doi.org/10.1107/s1600536807043747.Suche in Google Scholar

12. Betz, R., Klüfers, P. 1-Hydroxycyclopentane-1-carboxylic acid. Acta Crystallogr. 2007, E63, o3932; https://doi.org/10.1107/s1600536807042183.Suche in Google Scholar

13. 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

14. 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

15. Serafin, M. F., Wheeler, K. A. 2-Aminopyrimidine-3,3,3-triphenylpropanoic acid (1/1). Acta Crystallogr. 2007, C63, o620; https://doi.org/10.1107/s0108270107045799.Suche in Google Scholar

16. Steiner, T. Six-fold phenyl embrace in crystalline 3,3,3-triphenylpropionic acid. J. Chem. Crystallogr. 1999, 29, 1235–1237; https://doi.org/10.1023/a:1009596621607.10.1023/A:1009596621607Suche in Google Scholar

17. 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

18. 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

19. 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: 2020-11-03
Accepted: 2020-11-29
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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