Home Physical Sciences The crystal structure of 3-nitro-4-(p-tolylamino)-2H-chromen-2-one, C16H12N2O4
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The crystal structure of 3-nitro-4-(p-tolylamino)-2H-chromen-2-one, C16H12N2O4

  • Vidoslav S. Dekić , Marko V. Rodić ORCID logo EMAIL logo , Niko S. Radulović , Milenko N. Ristić , Biljana R. Dekić , Dejan M. Gurešić and Novica R. Ristić
Published/Copyright: October 14, 2019

Abstract

C16H12N2O4, triclinic, P1̄ (no. 2), a = 10.7105(5) Å, b = 11.2685(5) Å, c = 13.0145(6) Å, α = 99.292(4)°, β = 109.607(4)°, γ = 96.771(4)°, V = 1435.01(12) Å3, Z = 4, Rgt(F) = 0.0427, wRref(F2) = 0.1124, T = 295(2) K.

CCDC no.: 1957160

The molecular structure of molecule A is shown in the figure. Tables 1 and 2 contain details on crystal structure and measurement conditions and a list of the atoms including atomic coordinates and displacement parameters.

Table 1:

Data collection and handling.

Crystal:Trapezoid, yellow
Size:0.60 × 0.37 × 0.12 mm
Wavelength:Mo Kα radiation (0.71073 Å)
μ:0.1 mm−1
Diffractometer, scan mode:Gemini S, ω-scans
θmax, completeness:26.4°, >99%
N(hkl)measured, N(hkl)unique, Rint:14917, 5870, 0.021
Criterion for Iobs, N(hkl)gt:Iobs > 2 σ(Iobs), 4398
N(param)refined:399
Programs:CrysAlisPRO [1], SHELX [2], [3], PLATON [4]
Table 2:

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

AtomxyzUiso*/Ueq
O1B1.16119(11)0.91869(10)0.56562(9)0.0507(3)
O2B1.15133(12)1.03279(10)0.44271(10)0.0519(3)
O4B0.81452(11)0.84478(10)0.23184(9)0.0479(3)
O3B1.00662(12)0.91945(11)0.22776(10)0.0558(3)
N1B0.93786(13)0.87025(11)0.27307(10)0.0362(3)
N2B0.87600(12)0.63433(11)0.33237(10)0.0387(3)
H2B0.8362510.5831550.3590050.046*
C2B1.10733(15)0.93653(14)0.45939(13)0.0388(3)
C3B1.00335(14)0.84102(13)0.38018(12)0.0340(3)
C4B0.95786(14)0.73335(13)0.40659(12)0.0332(3)
C4′B1.00456(15)0.72883(14)0.52459(12)0.0375(3)
C5B0.95315(18)0.63703(15)0.56831(14)0.0475(4)
H5B0.8855960.5726940.5204750.057*
C6B1.0014(2)0.64103(18)0.68098(15)0.0593(5)
H6B0.9653410.5802790.7090590.071*
C7B1.1031(2)0.73457(19)0.75265(15)0.0673(6)
H7B1.1361650.7357960.8287190.081*
C8B1.1560(2)0.82598(18)0.71280(15)0.0615(5)
H8B1.2247210.8890280.7613010.074*
C8′B1.10573(17)0.82301(14)0.59954(13)0.0439(4)
C9B0.84650(15)0.60311(13)0.21529(12)0.0370(3)
C14B0.71886(17)0.54160(15)0.14572(13)0.0470(4)
H14B0.6523990.5240010.1750340.056*
C13B0.69084(18)0.50656(16)0.03269(14)0.0534(4)
H13B0.6053870.463541−0.0132880.064*
C12B0.78597(18)0.53343(15)−0.01451(13)0.0491(4)
C11B0.91319(18)0.59404(15)0.05704(14)0.0478(4)
H11B0.9790870.6132240.0275420.057*
C10B0.94511(16)0.62686(14)0.17099(13)0.0415(4)
H10B1.0323360.6646760.2176310.050*
C15B0.7517(2)0.4984(2)−0.13898(15)0.0696(6)
H15D0.6566140.492578−0.1767500.104*
H15E0.7763720.420753−0.1574620.104*
H15F0.8004150.559467−0.1619450.104*
O1A0.53546(13)0.31509(12)0.23852(10)0.0589(3)
O2A0.71073(13)0.43775(13)0.36920(11)0.0705(4)
O3A0.76230(14)0.37834(16)0.57852(12)0.0860(5)
O4A0.58391(16)0.43433(13)0.59828(11)0.0721(4)
N1A0.64180(16)0.38220(14)0.54349(12)0.0536(4)
N2A0.39533(13)0.19486(12)0.47211(10)0.0420(3)
H2A0.3105290.1649880.4483020.050*
C2A0.60992(17)0.36344(16)0.34898(14)0.0495(4)
C3A0.56108(16)0.32163(14)0.42846(13)0.0417(4)
C4A0.43935(15)0.24380(13)0.40064(12)0.0374(3)
C4′A0.35433(16)0.21171(13)0.28208(12)0.0405(4)
C5A0.22108(17)0.14846(15)0.24021(14)0.0512(4)
H5A0.1814160.1249550.2891110.061*
C6A0.1483(2)0.12077(18)0.12750(15)0.0641(5)
H6A0.0592170.0800870.1009110.077*
C7A0.2058(2)0.15255(18)0.05325(15)0.0678(6)
H7A0.1560860.131784−0.0230430.081*
C8A0.3359(2)0.21456(17)0.09166(15)0.0621(5)
H8A0.3755160.2352870.0418600.074*
C8′A0.40807(18)0.24621(14)0.20584(13)0.0472(4)
C9A0.47220(15)0.18618(14)0.58334(12)0.0388(3)
C10A0.59289(17)0.14569(15)0.60714(14)0.0471(4)
H10A0.6268420.1248090.5509740.056*
C11A0.66338(19)0.13623(17)0.71500(16)0.0562(5)
H11A0.7462030.1110650.7311990.067*
C12A0.6135(2)0.16335(17)0.79925(15)0.0571(5)
C13A0.4899(2)0.19918(19)0.77235(15)0.0613(5)
H13A0.4532020.2155180.8274190.074*
C14A0.41943(17)0.21134(17)0.66578(14)0.0523(4)
H14A0.3365710.2364420.6495070.063*
C15A0.6927(3)0.1566(3)0.91842(18)0.0957(8)
H15A0.6847460.2247380.9690550.144*
H15B0.7859470.1590330.9280550.144*
H15C0.6576560.0816210.9335520.144*

Source of material

The synthesis and characterization of the title compound was previously reported [5]. The product was obtained in the reaction of 4-chloro-3-nitrocoumarin and p-toluidine in ethyl acetate, in the presence of triethylamine. The obtained solid was dissolved in chloroform and allowed to slowly evaporate to give yellow crystals of the title compound.

Experimental details

Hydrogen atoms were introduced in idealized positions and refined using riding model. Their Uiso values are aproximated as Uiso = kUeq of the parent atom (k = 1.2 for sp2 and 1.5 for sp3 atoms).

Comment

Coumarins are a large group of organic compounds of natural or synthetic origin. They are known to possess promising pharmacological activities, such as antimicrobial [6], antioxidant [7], anticancer [8], anti-inflammatory [9]. The coumarin framework is a promising scaffold for the synthesis of analogs, with an aim to study and improve their biological properties. Varying the types of substitution and substituent identity led to different conformations of the molecules that had a profound impact on their biological activity [10]. We have previously synthesized a number of coumarin derivatives with significant antimicrobial and/or antioxidant activities [5], [11], [12], [13].

The asymmetric part of the unit cell contains two molecules (A) and (B) of the 3-nitro-4-(p-tolylamino)-2H-chromen-2-one. Bond lengths within the coumarin core of these molecules are in good agreement with those found in other 3-nitro-4-(arylamino) coumarins [10]. The two molecules have very similar conformations, as RMSD of their fit is 0.2417 Å. For both molecules, the coumarin core of the molecule is approximately planar, while both substituent groups at C3 and C4 are turned out from the aforementioned planes. This is visualized through torsion angle C4—C3—N1—O3 (131.55(17)° for molecule A and −141.34(15)° for molecule B) for nitro group twisting, as well as torsion angle C4—N2—C9—C10 (–46.8(2)° for molecule A and 37.7(2)° for molecule B) for the p-tolylamino group twisting.

Hydrogen bonds N2B—H2B⋯O2A and N2A—H2A⋯O2Bi [symmetry code (i) = x − 1, y − 1, z] connect molecules in ⋯A⋯B⋯A⋯B⋯chains.

Funding source: Ministry of Education, Science and Technological Development of the Republic of Serbia

Award Identifier / Grant number: 172061

Award Identifier / Grant number: 172014

Award Identifier / Grant number: 45022

Funding statement: This work was supported by the Ministry of Education, Science and Technological Development of the Republic of Serbia (Grants Nos. 172061, 172014 and 45022).

References

1. Rigaku Oxford Diffraction: CrysAlisPro Software system. Rigaku Corporation, Oxford, UK (2018).Search in Google Scholar

2. Sheldrick, G. M.: SHELXT – Integrated space-group and crystal-structure determination. Acta Crystallogr. A71 (2015) 3–8.10.1107/S2053273314026370Search in Google Scholar PubMed PubMed Central

3. Sheldrick, G. M.: Crystal structure refinement with SHELXL. Acta Crystallogr. C71 (2015) 3–8.10.1107/S2053229614024218Search in Google Scholar PubMed PubMed Central

4. Spek, A. L.: Structure validation in chemical crystallography. Acta Crystallogr. D65 (2009) 148–155.10.1107/S090744490804362XSearch in Google Scholar PubMed PubMed Central

5. Dekić, V.; Radulović, N.; Vukićević, R.; Dekić, B.; Skropeta, D.; Palić, R.: Complete assignment of the 1H and 13C NMR spectra of antimicrobial 4-arylamino-3-nitrocoumarin derivatives. Magn. Reson. Chem. 48 (2010) 896–902.10.1002/mrc.2681Search in Google Scholar PubMed

6. Al-Majedy, Y. K.; Kadhum, A. A. H.; Al-Amiery, A. A.; Mohamad, A. B.: Coumarins: The antimicrobial agents. Sys. Rev. Pharm. 8 (2017) 62–70.10.5530/srp.2017.1.11Search in Google Scholar

7. Bubols, G. B.; Vianna, D. R.; Medina-Remon, A.; von Poser, G.; Lamuela-Raventos, R. M.; Eifler-Lima, V. L.; Garcia, S. C.: The antioxidant activity of coumarins and flavonoids. Mini-Rev. Med. Chem. 13 (2013) 318–334.10.2174/1389557511313030002Search in Google Scholar

8. Kapoor, S.: The anti-neoplastic effects of coumarin: An emerging concept. Cytotechnology 65 (2013) 787–788.10.1007/s10616-013-9538-6Search in Google Scholar PubMed PubMed Central

9. Bansal, Y.; Sethi, P.; Bansal, G.: Coumarin: A potential nucleus for anti-inflammatory molecules. Med. Chem. Res. 22 (2013) 3049–3060.10.1007/s00044-012-0321-6Search in Google Scholar

10. Radulović, N.; Bogdanović, G.; Blagojević, P.; Dekić, V.; Vukićević, R.: Could X-ray analysis explain for the differing antimicrobial and antioxidant activity of two 2-arylamino-3-nitro-coumarins? J. Chem. Crystallogr. 41 (2011) 545–551.10.1007/s10870-010-9918-0Search in Google Scholar

11. Dekić, V.; Radulović, N.; Vukićević, R.; Dekić, B.; Stojanović-Radić, Z.; Palić, R.: Influence of the aryl substituent identity in 4-arylamino-3-nitrocoumarins on their antimicrobial activity. Afr. J. Pharm. Pharmacol. 5 (2011) 371–375.10.5897/AJPP10.408Search in Google Scholar

12. Radulović, N.; Stojanović-Radić, Z.; Stojanović, P.; Stojanović, N.; Dekić, V.; Dekić, B.: A small library of 4-(alkylamino)-3-nitrocoumarin derivatives with potent antimicrobial activity against gastrointestinal pathogens. J. Serb. Chem. Soc. 80 (2015) 315–327.10.2298/JSC140619085RSearch in Google Scholar

13. Ristić, M.; Radulović, N.; Dekić, B.; Dekić, V.; Ristić, N.; Stojanović–Radić, Z.: Synthesis and spectral characterization of asymmetric azines containing a coumarin moiety: The discovery of new antimicrobial and antioxidant agents. Chem. Biodivers. 16 (2019) e1800486.10.1002/cbdv.201800486Search in Google Scholar PubMed

Received: 2019-08-15
Accepted: 2019-10-02
Published Online: 2019-10-14
Published in Print: 2019-12-18

©2019 Vidoslav S. Dekić et al., published by De Gruyter, Berlin/Boston

This work is licensed under the Creative Commons Attribution 4.0 Public License.

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  65. Crystal structure of (dimethyl sulfoxide)-dioxido-[2-hydroxy-N′-(4-oxo-4-phenylbutan-2-ylidene)benzohydrazidato κ3N,O,O′]molybdenum(VI), C19H20MoN2O6S
  66. Crystal structure of bis(acetylacetonato-κ2O,O′)-(ethanolamine-κ2N,O)copper(II), C14H25CuNO5
  67. Crystal structure of chlorido-diphenyl-(isopropyl(propyl)carbamodithioato-κ2S,S′)tin(IV), C19H24ClNS2Sn
  68. The crystal structure of bis(imidazole-1-yl)methane monohydrate, C7H10N4O
  69. The crystal structure of bis(4-nitroimidazole-1-1yl)methane, C7H6N6O4
  70. Crystal structure of di(naphthalen-2-yl)sulfane, C20H14S
  71. Crystal structure of 3-acetyl-6-bromo-4-hydroxy-2H-chromen-2-one, C11H7BrO4
  72. Crystal structure of N′2,N′6-bis((E)-1-(pyrazin-2-yl)ethylidene)pyridine-2,6-dicarbohydrazide — methanol (1/2), C21H25N9O4
  73. The crystal structure of 3-nitro-4-(p-tolylamino)-2H-chromen-2-one, C16H12N2O4
  74. The crystal structure of 1,2-bis((4-methoxyphenyl)ethynyl)benzene, C24H18O2
  75. Crystal structure of a low-temperature (100 K) polymorph of catena-poly[(μ2-4,4′-bipyridine-κ2N,N′)-bis(O,O′-diethyldithiophosphato-κ1S)zinc(II)], C18H28N2O4P2S4Zn
  76. The pseudosymmetric low temperature polymorph of catena-poly[(μ2-4,4′-bipyridyl-κN,N′)-bis(O,O′-diethyldithiophosphato-κS)-cadmium(II)], {C18H28CdN2O4P2S4}n
  77. Crystal structure of 3-iodophthalic acid, C8H5IO4
  78. The crystal structure of tert-butyl (tert-butoxy(oxo)methyl)(5-bromo-2-fluorophenyl)carbamate, C16H21BrFNO4
  79. The crystal structure of bis(μ2-5,7-dichloroquinolin-8-olato-κ3N,O:O)-tetrakis(5,7-dichloroquinolin-8-olato-κ2N,O)bis(methanol-κ1O)dieuropium(III) — toluene (1/1), C63H39Cl12Eu2N6O8
  80. Crystal structure of dichlorido-(N′-(1-(3-ethylpyrazin-2-yl)ethylidene)-4-methoxybenzohydrazide-κ3N,N′,O)cadmium(II), C16H18N4O2Cl2Cd
  81. A redetermination of the crystal structure of catena-poly[(bis(O,O′-isopropyl dithiophosphato-κ2S,S′)-(μ2-1,2-bis(3-pyridylmethylene)hydrazine-κ2N,N′)cadmium(II)], {C24H38CdN4O4P2S4}n
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