Home Crystal structure of 1-(benzo[d]thiazol-2-yl)-3-phenylthiourea, C14H11N3S2
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Crystal structure of 1-(benzo[d]thiazol-2-yl)-3-phenylthiourea, C14H11N3S2

  • Suhair M. S. Jambi , Abdul-Rahman M. Al-Obaid , Eric C. Hosten , Richard Betz and Ahmed Bari EMAIL logo
Published/Copyright: October 10, 2016

Abstract

C14H11N3S2, triclinic, P1̅ (no. 2), a = 5.7607(5)Å, b = 9.8397(9) Å, c = 12.0920(11) Å, α = 72.899(4)°, β = 81.833(4)°, γ = 86.796(5)°, V = 648.40(10) Å3, Z = 2, Rgt(F) = 0.0295, wRref(F2) = 0.0797, T = 200(2) K.

CCDC no.:: 1504856

Table 1:

Data collection and handling.

Crystal:Colourless blocks
Size:0.29 × 0.13 × 0.10 mm
Wavelength:Mo Kα radiation (0.71073 Å)
μ:4.0 cm−1
Diffractometer, scan mode:Bruker APEX-II, φ and ω
2θmax, completeness:56.6°, >99 %
N(hkl)measured, N(hkl)unique, Rint:11092, 3208, 0.017
Criterion for Iobs, N(hkl)gt:Iobs > 2 σ(Iobs), 2727
N(param)refined:180
Programs:Bruker programs [7], SHELX [8], ShelXle [9], ORTEP-3 [10], Platon [11], Mercury [12]
Table 2:

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

AtomxyzUiso*/Ueq
S10.52415 (6)0.21877 (4)0.04377 (3)0.03350 (10)
S20.97738 (6)0.62320 (4)0.12544 (3)0.03461 (10)
N10.3575 (2)0.31363 (12)0.21867 (10)0.0309 (2)
N20.7045 (2)0.42561 (12)0.10813 (10)0.0302 (2)
N30.5713 (2)0.52743 (12)0.25406 (10)0.0302 (2)
C10.5267 (2)0.32936 (13)0.13329 (11)0.0270 (3)
C20.7384 (2)0.52145 (14)0.16729 (11)0.0275 (3)
C110.2086 (2)0.20706 (14)0.21941 (11)0.0293 (3)
C120.2731 (2)0.14077 (14)0.13170 (11)0.0294 (3)
C130.1418 (3)0.03087 (15)0.12302 (14)0.0371 (3)
H130.1866−0.01400.06340.045*
C14−0.0547 (3)−0.01135 (15)0.20297 (14)0.0403 (3)
H14−0.1452−0.08740.19930.048*
C15−0.1224 (3)0.05579 (16)0.28892 (14)0.0416 (3)
H15−0.26040.02620.34230.050*
C160.0074 (3)0.16477 (16)0.29816 (13)0.0385 (3)
H16−0.03990.21000.35730.046*
C210.5700 (2)0.61661 (13)0.32819 (11)0.0267 (3)
C220.3846 (2)0.71053 (15)0.33253 (12)0.0334 (3)
H220.26820.72090.28220.040*
C230.3699 (3)0.78996 (16)0.41141 (13)0.0378 (3)
H230.24360.85570.41460.045*
C240.5378 (3)0.77356 (15)0.48492 (12)0.0362 (3)
H240.52590.82660.53970.043*
C250.7234 (3)0.68014 (16)0.47892 (12)0.0359 (3)
H250.84010.67010.52910.043*
C260.7413 (2)0.60096 (15)0.40059 (12)0.0326 (3)
H260.86940.53670.39660.039*
H20.810 (3)0.4243 (18)0.0503 (16)0.043 (5)*
H30.452 (3)0.4781 (19)0.2650 (15)0.043 (5)*

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

Source of material

The title compound was prepared by refluxing an equi molar ratio of 2-aminobenzothiazole and phenylisothiocyanate in ethanol for 3 h. The precipitate obtained was filtered off, washed with water and recrystallized from ethanol affording crystals suitable for crystallographic study.

Experimental details

Carbon-bound hydrogen atoms were placed in calculated positions and were included in the refinement in the riding model approximation, with U(H) set to 1.2Ueq(C). The nitrogen-bound H atoms were located on a difference Fourier map and refined freely.

Discussion

Thioureas and substituted thioureas are versatile synthetic intermediates in the synthesis of various biological active heterocyclic compounds and natural products. Due to the presence of a C = S functional group, they are considered as useful chelating agent due to their ability to encapsulate into their coordinating metal ions. Thioureas and their derivatives coordinate with several metal ions as neutral ligands, monoanions or dianions to form stable complexes, which are screened for various biological properties [1], [2], [3]. Thiazole moiety attached to thiourea occurs as structural unit in biologically active products [4].

The titled compound is a benzothiazole thiourea with a phenyl group. The benzothiazole thiourea group is essentially planar with the least square plane through all the non-hydrogen atoms having an R.M.S of 0.0281. The phenyl group is turned 65.18(4)° out of the benzothiazole thiourea plane. There is one intramolecular hydrogen bond N3—H3⋯N1 with a length of 1.987(19) Å which in terms of graph-set analyses [5], [6] has a S11(6) descriptor always first order in a molecule without symmetry. Adjacent molecules have two N2—H2⋯S2 intermolecular bonds of 2.456(18) Å with a R22(8) descriptor on the unary level. The shortest π ring interaction is between adjacent phenyl C21—C26 rings with a centroid to centroid distance of 3.8800(9) Å and a slippage of 1.716 Å.

Acknowledgements

We thank the Research Center, College of Pharmacy and Deanship of Scientific Research, King Saud University for supporting this study.

References

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Received: 2016-4-12
Accepted: 2016-9-20
Published Online: 2016-10-10
Published in Print: 2017-1-1

©2016 Suhair M. S. Jambi et al., published by De Gruyter.

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

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