organic compounds
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1-[4-(Dimethylamino)benzylidene]-4-o-tolylthiosemicarbazide
aDepartment of Chemistry, Xiamen University, Xiamen 361005, People's Republic of China
*Correspondence e-mail: linlr@xmu.edu.cn
The 17H20N4S, contains two independent molecules, the main difference between them being the dihedral angles between the benzene rings [19.99 (17) and 9.72 (17)°]. The molecules both have a trans conformation about the C=N double bond and intramolecular C—H⋯S and N—H⋯N hydrogen bonds are observed in both molecules. In the crystal, molecules are linked by weak N—H⋯S hydrogen bonds with graph-set motif R22(8). In each molecule, all but one of the N atoms and both the S atoms are involved in hydrogen bonding.
of the title compound, CRelated literature
For details of anion recognition, see: Sessler et al. (2006); Amendola et al. (2006); Fahlbusch et al. (2006); Gale & Quesada (2006); Perez & Riera (2008); Willans et al. (2009); Amendola & Fabbrizzi (2009); Haridas et al. (2012). For applications of thiosemicarbazides, see: Basuli et al. (1998); Pandeya et al. (1999); Kowol et al. (2010). For thiosemicarbazones acting as anion acceptors, see: Chikate et al. (2005); Krisitin (2005). For details of the synthesis of the Schiff base ligand, see: Pouralimardan et al. (2007). For hydrogen-bond motifs, see: Bernstein et al. (1995).
Experimental
Crystal data
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Data collection: SMART (Bruker, 2001); cell SAINT (Bruker, 2001); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 2012); software used to prepare material for publication: SHELXL97.
Supporting information
10.1107/S1600536813012890/bx2440sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536813012890/bx2440Isup2.hkl
Supporting information file. DOI: 10.1107/S1600536813012890/bx2440Isup3.mol
Supporting information file. DOI: 10.1107/S1600536813012890/bx2440Isup4.cml
The title compound was synthesized by refluxing an ethanol solution (20 ml) of 4-(dimethylamino) benzaldehyde (10 mmol) and 4-(4-methylphenyl)-3-thiosemicarbazide (10 mmol) for 3 h. The resulting yellow and clear solution was then cooled to room temperature. Light-yellow crystals were obtained, filtered and washed with cold ethanol. Crystals suitable for X-ray ~180 °C, MS (APCI) m/z (%): M+ 311.4, 1H-NMR (CDCl3), δ (p.p.m.): 9.53 (s,NH), 9.00 (s, NH), 7.84 (s, CH=N), 7.77 (dd, 1H, J = 4 Hz, ArH), 7.63 (d, 2H, J = 12 Hz, ArH), 7.32~7.30 (m, 1H, ArH), 7.25~7.23 (m, 2H, ArH), 7.02~6.99 (m, 2H, ArH), 3.10 (s, 6H, CH3), 2.39 (s, 3H, CH3).
were obtained by slow evaporation of an acetonitrile and dichromethane mixed solution. M.P. 179Treatment of hydrogen atoms in the least-squares
some constrained, some independent. For constrained, H atoms were positioned geometrically (C—H = 0.95–0.98 A ° and N—H = 0.88 A °) and refined as riding, with Uiso(H) = 1.2Ueq(carrier) or 1.5Ueq(methyl C).Data collection: SMART (Bruker, 2001); cell
SAINT (Bruker, 2001); data reduction: SAINT (Bruker, 2001); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 2012); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008).Fig. 1. ORTEP plot of the title compound. The thermal ellipsoids are drawn at 30% probability level. |
C17H20N4S | Z = 4 |
Mr = 312.43 | F(000) = 664 |
Triclinic, P1 | Dx = 1.265 Mg m−3 |
Hall symbol: -P 1 | Melting point: 452 K |
a = 9.172 (3) Å | Mo Kα radiation, λ = 0.71073 Å |
b = 12.224 (4) Å | Cell parameters from 9709 reflections |
c = 15.563 (5) Å | θ = 1.8–25.0° |
α = 86.933 (6)° | µ = 0.20 mm−1 |
β = 86.990 (7)° | T = 173 K |
γ = 70.382 (6)° | Block, yellow |
V = 1640.3 (9) Å3 | 0.20 × 0.15 × 0.03 mm |
Brucker SMART APEX diffractometer | 5640 independent reflections |
Radiation source: fine-focus sealed tube | 3127 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.027 |
ω scan | θmax = 25.0°, θmin = 1.8° |
Absorption correction: multi-scan (SADABS; Sheldrick,2008) | h = −9→10 |
Tmin = 0.961, Tmax = 0.994 | k = −14→14 |
7929 measured reflections | l = −18→15 |
Refinement on F2 | Primary atom site location: structure-invariant direct methods |
Least-squares matrix: full | Secondary atom site location: difference Fourier map |
R[F2 > 2σ(F2)] = 0.058 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.155 | H atoms treated by a mixture of independent and constrained refinement |
S = 0.95 | w = 1/[σ2(Fo2) + (0.0697P)2] where P = (Fo2 + 2Fc2)/3 |
5640 reflections | (Δ/σ)max = 0.001 |
419 parameters | Δρmax = 0.29 e Å−3 |
0 restraints | Δρmin = −0.17 e Å−3 |
0 constraints |
C17H20N4S | γ = 70.382 (6)° |
Mr = 312.43 | V = 1640.3 (9) Å3 |
Triclinic, P1 | Z = 4 |
a = 9.172 (3) Å | Mo Kα radiation |
b = 12.224 (4) Å | µ = 0.20 mm−1 |
c = 15.563 (5) Å | T = 173 K |
α = 86.933 (6)° | 0.20 × 0.15 × 0.03 mm |
β = 86.990 (7)° |
Brucker SMART APEX diffractometer | 5640 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick,2008) | 3127 reflections with I > 2σ(I) |
Tmin = 0.961, Tmax = 0.994 | Rint = 0.027 |
7929 measured reflections |
R[F2 > 2σ(F2)] = 0.058 | 0 restraints |
wR(F2) = 0.155 | H atoms treated by a mixture of independent and constrained refinement |
S = 0.95 | Δρmax = 0.29 e Å−3 |
5640 reflections | Δρmin = −0.17 e Å−3 |
419 parameters |
Geometry. All e.s.d.'s (except the e.s.d. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell e.s.d.'s are taken into account individually in the estimation of e.s.d.'s in distances, angles and torsion angles; correlations between e.s.d.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell e.s.d.'s is used for estimating e.s.d.'s involving l.s. planes. |
Refinement. Refinement of F2 against ALL reflections. The weighted R-factor wR and goodness of fit S are based on F2, conventional R-factors R are based on F, with F set to zero for negative F2. The threshold expression of F2 > σ(F2) is used only for calculating R-factors(gt) etc. and is not relevant to the choice of reflections for refinement. R-factors based on F2 are statistically about twice as large as those based on F, and R- factors based on ALL data will be even larger. |
x | y | z | Uiso*/Ueq | ||
H4N | 0.578 (4) | 0.812 (3) | 0.419 (2) | 0.090 (12)* | |
S2 | 1.04941 (11) | 0.49993 (7) | 1.21135 (6) | 0.0688 (3) | |
S1 | 0.71619 (13) | 0.85281 (7) | 0.21044 (6) | 0.0790 (3) | |
N8 | 0.9444 (3) | 0.4024 (2) | 1.08541 (17) | 0.0587 (7) | |
N6 | 0.7262 (3) | 0.5924 (2) | 1.04273 (16) | 0.0592 (7) | |
N7 | 0.8225 (3) | 0.5919 (2) | 1.10796 (16) | 0.0617 (7) | |
H7N | 0.8092 | 0.6550 | 1.1341 | 0.074* | |
N3 | 0.7612 (3) | 0.6926 (2) | 0.33190 (16) | 0.0667 (8) | |
H3N | 0.8358 | 0.6518 | 0.2990 | 0.080* | |
N2 | 0.7239 (3) | 0.6441 (2) | 0.40899 (16) | 0.0622 (7) | |
C3 | 0.7517 (4) | 0.3395 (3) | 0.6503 (2) | 0.0591 (8) | |
C27 | 0.9379 (4) | 0.4935 (3) | 1.13162 (18) | 0.0526 (8) | |
N4 | 0.5776 (3) | 0.8602 (2) | 0.36927 (18) | 0.0651 (8) | |
C20 | 0.3119 (3) | 0.7492 (3) | 0.8192 (2) | 0.0540 (8) | |
C8 | 0.7901 (4) | 0.4768 (2) | 0.50474 (19) | 0.0548 (8) | |
C25 | 0.5234 (3) | 0.7076 (2) | 0.95183 (19) | 0.0530 (8) | |
C23 | 0.3245 (4) | 0.8396 (3) | 0.8656 (2) | 0.0591 (8) | |
H23A | 0.2616 | 0.9154 | 0.8530 | 0.071* | |
C28 | 1.0406 (4) | 0.2847 (3) | 1.0853 (2) | 0.0544 (8) | |
C10 | 0.6811 (4) | 0.8030 (3) | 0.3086 (2) | 0.0600 (8) | |
C21 | 0.4065 (4) | 0.6374 (3) | 0.8423 (2) | 0.0639 (9) | |
H21A | 0.4001 | 0.5748 | 0.8132 | 0.077* | |
N5 | 0.2121 (3) | 0.7702 (2) | 0.75317 (19) | 0.0726 (8) | |
C24 | 0.4275 (4) | 0.8183 (2) | 0.9290 (2) | 0.0580 (8) | |
H24A | 0.4340 | 0.8808 | 0.9583 | 0.070* | |
C9 | 0.8135 (4) | 0.5414 (3) | 0.4282 (2) | 0.0614 (9) | |
C7 | 0.8969 (4) | 0.3691 (3) | 0.5240 (2) | 0.0648 (9) | |
H7B | 0.9836 | 0.3406 | 0.4874 | 0.078* | |
C26 | 0.6322 (4) | 0.6915 (3) | 1.0191 (2) | 0.0576 (8) | |
C11 | 0.4741 (4) | 0.9757 (3) | 0.37105 (19) | 0.0559 (8) | |
C22 | 0.5090 (4) | 0.6176 (2) | 0.9070 (2) | 0.0619 (9) | |
H22A | 0.5704 | 0.5418 | 0.9210 | 0.074* | |
C33 | 1.0155 (4) | 0.2181 (3) | 1.0214 (2) | 0.0612 (9) | |
C6 | 0.8797 (4) | 0.3028 (3) | 0.5947 (2) | 0.0635 (9) | |
H6B | 0.9557 | 0.2315 | 0.6057 | 0.076* | |
N1 | 0.7278 (3) | 0.2725 (2) | 0.71832 (18) | 0.0754 (8) | |
C16 | 0.3454 (4) | 0.9972 (3) | 0.42636 (19) | 0.0617 (9) | |
C5 | 0.6640 (4) | 0.5151 (3) | 0.5611 (2) | 0.0727 (10) | |
H5A | 0.5900 | 0.5876 | 0.5505 | 0.087* | |
C4 | 0.6443 (4) | 0.4499 (3) | 0.6320 (2) | 0.0758 (10) | |
H4B | 0.5582 | 0.4793 | 0.6688 | 0.091* | |
C29 | 1.1542 (4) | 0.2360 (3) | 1.1439 (2) | 0.0695 (9) | |
H29A | 1.1705 | 0.2813 | 1.1861 | 0.083* | |
C14 | 0.2744 (4) | 1.1999 (3) | 0.3839 (2) | 0.0814 (11) | |
H14A | 0.2066 | 1.2757 | 0.3886 | 0.098* | |
C30 | 1.2434 (4) | 0.1207 (3) | 1.1403 (2) | 0.0768 (10) | |
H30A | 1.3192 | 0.0875 | 1.1803 | 0.092* | |
C15 | 0.2464 (4) | 1.1115 (3) | 0.4309 (2) | 0.0777 (10) | |
H15A | 0.1585 | 1.1280 | 0.4672 | 0.093* | |
C32 | 1.1080 (5) | 0.1035 (3) | 1.0189 (2) | 0.0777 (11) | |
H32A | 1.0941 | 0.0577 | 0.9763 | 0.093* | |
C31 | 1.2200 (5) | 0.0552 (3) | 1.0775 (3) | 0.0832 (12) | |
H31A | 1.2805 | −0.0228 | 1.0746 | 0.100* | |
C13 | 0.4014 (4) | 1.1774 (3) | 0.3301 (2) | 0.0771 (10) | |
H13A | 0.4204 | 1.2373 | 0.2972 | 0.092* | |
C12 | 0.5015 (4) | 1.0657 (3) | 0.3246 (2) | 0.0731 (10) | |
H12A | 0.5897 | 1.0506 | 0.2886 | 0.088* | |
C2 | 0.8405 (4) | 0.1598 (3) | 0.7369 (2) | 0.0862 (12) | |
H2B | 0.8578 | 0.1132 | 0.6872 | 0.129* | |
H2C | 0.8027 | 0.1222 | 0.7844 | 0.129* | |
H2D | 0.9361 | 0.1689 | 0.7515 | 0.129* | |
C34 | 0.8908 (4) | 0.2672 (3) | 0.9584 (2) | 0.0783 (10) | |
H34A | 0.7927 | 0.2977 | 0.9888 | 0.117* | |
H34B | 0.8883 | 0.2071 | 0.9218 | 0.117* | |
H34C | 0.9111 | 0.3284 | 0.9240 | 0.117* | |
C19 | 0.1023 (4) | 0.8841 (3) | 0.7355 (2) | 0.0801 (11) | |
H19A | 0.0530 | 0.9171 | 0.7885 | 0.120* | |
H19B | 0.0255 | 0.8780 | 0.6982 | 0.120* | |
H19C | 0.1552 | 0.9330 | 0.7081 | 0.120* | |
C17 | 0.3151 (5) | 0.9008 (3) | 0.4802 (2) | 0.0911 (12) | |
H17A | 0.3184 | 0.8389 | 0.4439 | 0.137* | |
H17B | 0.2147 | 0.9297 | 0.5085 | 0.137* | |
H17C | 0.3927 | 0.8722 | 0.5225 | 0.137* | |
C18 | 0.2157 (4) | 0.6813 (3) | 0.6966 (2) | 0.0889 (12) | |
H18A | 0.3104 | 0.6605 | 0.6623 | 0.133* | |
H18B | 0.1293 | 0.7093 | 0.6596 | 0.133* | |
H18C | 0.2097 | 0.6143 | 0.7297 | 0.133* | |
C1 | 0.6037 (4) | 0.3152 (3) | 0.7806 (2) | 0.0912 (12) | |
H1A | 0.5071 | 0.3430 | 0.7521 | 0.137* | |
H1B | 0.6180 | 0.3776 | 0.8101 | 0.137* | |
H1C | 0.6029 | 0.2536 | 0.8214 | 0.137* | |
H8N | 0.864 (3) | 0.425 (2) | 1.0437 (18) | 0.062 (9)* | |
H9A | 0.903 (3) | 0.512 (2) | 0.3926 (16) | 0.041 (8)* | |
H26A | 0.635 (4) | 0.761 (3) | 1.045 (2) | 0.082 (11)* |
U11 | U22 | U33 | U12 | U13 | U23 | |
S2 | 0.0767 (6) | 0.0649 (5) | 0.0642 (6) | −0.0209 (5) | −0.0089 (4) | −0.0088 (4) |
S1 | 0.1248 (9) | 0.0507 (5) | 0.0585 (6) | −0.0272 (5) | 0.0087 (5) | −0.0021 (4) |
N8 | 0.0627 (19) | 0.0517 (16) | 0.0603 (17) | −0.0157 (14) | −0.0058 (15) | −0.0080 (14) |
N6 | 0.0618 (18) | 0.0560 (17) | 0.0585 (17) | −0.0181 (14) | −0.0022 (14) | −0.0015 (13) |
N7 | 0.0688 (19) | 0.0515 (16) | 0.0644 (17) | −0.0178 (14) | −0.0060 (15) | −0.0105 (13) |
N3 | 0.089 (2) | 0.0469 (15) | 0.0544 (16) | −0.0118 (14) | 0.0088 (15) | 0.0007 (13) |
N2 | 0.078 (2) | 0.0491 (16) | 0.0560 (17) | −0.0172 (15) | −0.0005 (14) | 0.0036 (13) |
C3 | 0.074 (2) | 0.0452 (18) | 0.055 (2) | −0.0161 (17) | −0.0033 (18) | −0.0022 (15) |
C27 | 0.056 (2) | 0.0499 (18) | 0.0516 (18) | −0.0180 (16) | 0.0068 (15) | −0.0011 (15) |
N4 | 0.078 (2) | 0.0502 (16) | 0.0579 (18) | −0.0105 (15) | 0.0004 (15) | 0.0052 (14) |
C20 | 0.050 (2) | 0.0517 (19) | 0.058 (2) | −0.0142 (16) | 0.0050 (16) | −0.0031 (15) |
C8 | 0.066 (2) | 0.0457 (17) | 0.0501 (18) | −0.0146 (16) | −0.0012 (16) | −0.0036 (15) |
C25 | 0.058 (2) | 0.0464 (18) | 0.0518 (19) | −0.0145 (16) | 0.0065 (16) | −0.0031 (14) |
C23 | 0.059 (2) | 0.0453 (18) | 0.063 (2) | −0.0063 (16) | 0.0053 (17) | 0.0054 (16) |
C28 | 0.056 (2) | 0.0527 (19) | 0.0555 (19) | −0.0210 (17) | 0.0090 (16) | 0.0005 (16) |
C10 | 0.075 (2) | 0.0449 (18) | 0.061 (2) | −0.0197 (17) | −0.0036 (18) | −0.0047 (16) |
C21 | 0.071 (2) | 0.0473 (19) | 0.071 (2) | −0.0149 (17) | −0.0082 (19) | −0.0087 (16) |
N5 | 0.070 (2) | 0.0604 (18) | 0.077 (2) | −0.0055 (15) | −0.0151 (16) | −0.0037 (15) |
C24 | 0.064 (2) | 0.0441 (18) | 0.063 (2) | −0.0155 (16) | 0.0108 (17) | −0.0079 (15) |
C9 | 0.075 (3) | 0.051 (2) | 0.056 (2) | −0.0177 (19) | 0.0027 (19) | −0.0048 (17) |
C7 | 0.070 (2) | 0.053 (2) | 0.058 (2) | −0.0039 (18) | 0.0071 (17) | −0.0050 (16) |
C26 | 0.064 (2) | 0.050 (2) | 0.060 (2) | −0.0201 (18) | 0.0066 (17) | −0.0069 (17) |
C11 | 0.060 (2) | 0.0527 (19) | 0.0515 (19) | −0.0145 (17) | −0.0028 (16) | −0.0019 (15) |
C22 | 0.062 (2) | 0.0412 (17) | 0.075 (2) | −0.0084 (16) | 0.0012 (18) | −0.0022 (16) |
C33 | 0.074 (2) | 0.060 (2) | 0.054 (2) | −0.0301 (19) | 0.0160 (17) | −0.0107 (16) |
C6 | 0.068 (2) | 0.0466 (18) | 0.060 (2) | 0.0018 (16) | 0.0001 (17) | −0.0012 (16) |
N1 | 0.089 (2) | 0.0561 (17) | 0.0674 (19) | −0.0107 (16) | 0.0108 (17) | 0.0104 (14) |
C16 | 0.073 (2) | 0.064 (2) | 0.0496 (19) | −0.0246 (19) | −0.0016 (17) | −0.0051 (16) |
C5 | 0.076 (3) | 0.0494 (19) | 0.074 (2) | 0.0017 (18) | 0.001 (2) | 0.0050 (18) |
C4 | 0.073 (2) | 0.061 (2) | 0.072 (2) | 0.0006 (19) | 0.0183 (19) | 0.0071 (18) |
C29 | 0.072 (2) | 0.058 (2) | 0.076 (2) | −0.0192 (19) | 0.001 (2) | −0.0033 (18) |
C14 | 0.084 (3) | 0.061 (2) | 0.083 (3) | −0.003 (2) | 0.008 (2) | −0.006 (2) |
C30 | 0.071 (3) | 0.066 (2) | 0.083 (3) | −0.011 (2) | 0.007 (2) | 0.005 (2) |
C15 | 0.070 (3) | 0.076 (3) | 0.076 (3) | −0.012 (2) | 0.0144 (19) | −0.013 (2) |
C32 | 0.101 (3) | 0.066 (2) | 0.067 (2) | −0.030 (2) | 0.022 (2) | −0.0169 (19) |
C31 | 0.101 (3) | 0.055 (2) | 0.086 (3) | −0.020 (2) | 0.033 (3) | −0.009 (2) |
C13 | 0.086 (3) | 0.057 (2) | 0.080 (3) | −0.016 (2) | 0.012 (2) | −0.0020 (18) |
C12 | 0.072 (2) | 0.059 (2) | 0.078 (2) | −0.0108 (19) | 0.0117 (19) | 0.0023 (18) |
C2 | 0.119 (3) | 0.063 (2) | 0.061 (2) | −0.012 (2) | −0.003 (2) | 0.0100 (18) |
C34 | 0.101 (3) | 0.086 (2) | 0.062 (2) | −0.050 (2) | 0.003 (2) | −0.0141 (19) |
C19 | 0.066 (2) | 0.074 (2) | 0.092 (3) | −0.012 (2) | −0.014 (2) | 0.010 (2) |
C17 | 0.103 (3) | 0.092 (3) | 0.083 (3) | −0.041 (2) | 0.019 (2) | −0.005 (2) |
C18 | 0.090 (3) | 0.086 (3) | 0.089 (3) | −0.023 (2) | −0.024 (2) | −0.007 (2) |
C1 | 0.089 (3) | 0.095 (3) | 0.079 (3) | −0.021 (2) | 0.009 (2) | 0.015 (2) |
S2—C27 | 1.670 (3) | C22—H22A | 0.9300 |
S1—C10 | 1.670 (3) | C33—C32 | 1.374 (4) |
N8—C27 | 1.340 (4) | C33—C34 | 1.491 (4) |
N8—C28 | 1.413 (4) | C6—H6B | 0.9300 |
N8—H8N | 0.97 (3) | N1—C1 | 1.430 (4) |
N6—C26 | 1.277 (4) | N1—C2 | 1.443 (4) |
N6—N7 | 1.379 (3) | C16—C15 | 1.391 (4) |
N7—C27 | 1.357 (4) | C16—C17 | 1.503 (4) |
N7—H7N | 0.8600 | C5—C4 | 1.367 (4) |
N3—C10 | 1.343 (3) | C5—H5A | 0.9300 |
N3—N2 | 1.388 (3) | C4—H4B | 0.9300 |
N3—H3N | 0.8600 | C29—C30 | 1.375 (4) |
N2—C9 | 1.279 (4) | C29—H29A | 0.9300 |
C3—N1 | 1.358 (4) | C14—C13 | 1.357 (5) |
C3—C6 | 1.382 (4) | C14—C15 | 1.361 (4) |
C3—C4 | 1.402 (4) | C14—H14A | 0.9300 |
N4—C10 | 1.347 (4) | C30—C31 | 1.365 (5) |
N4—C11 | 1.414 (4) | C30—H30A | 0.9300 |
N4—H4N | 0.94 (3) | C15—H15A | 0.9300 |
C20—N5 | 1.369 (4) | C32—C31 | 1.367 (5) |
C20—C21 | 1.391 (4) | C32—H32A | 0.9300 |
C20—C23 | 1.391 (4) | C31—H31A | 0.9300 |
C8—C5 | 1.378 (4) | C13—C12 | 1.371 (4) |
C8—C7 | 1.381 (4) | C13—H13A | 0.9300 |
C8—C9 | 1.440 (4) | C12—H12A | 0.9300 |
C25—C22 | 1.379 (4) | C2—H2B | 0.9600 |
C25—C24 | 1.383 (4) | C2—H2C | 0.9600 |
C25—C26 | 1.445 (4) | C2—H2D | 0.9600 |
C23—C24 | 1.356 (4) | C34—H34A | 0.9600 |
C23—H23A | 0.9300 | C34—H34B | 0.9600 |
C28—C29 | 1.378 (4) | C34—H34C | 0.9600 |
C28—C33 | 1.393 (4) | C19—H19A | 0.9600 |
C21—C22 | 1.370 (4) | C19—H19B | 0.9600 |
C21—H21A | 0.9300 | C19—H19C | 0.9600 |
N5—C18 | 1.426 (4) | C17—H17A | 0.9600 |
N5—C19 | 1.440 (4) | C17—H17B | 0.9600 |
C24—H24A | 0.9300 | C17—H17C | 0.9600 |
C9—H9A | 0.94 (2) | C18—H18A | 0.9600 |
C7—C6 | 1.366 (4) | C18—H18B | 0.9600 |
C7—H7B | 0.9300 | C18—H18C | 0.9600 |
C26—H26A | 0.97 (3) | C1—H1A | 0.9600 |
C11—C12 | 1.370 (4) | C1—H1B | 0.9600 |
C11—C16 | 1.383 (4) | C1—H1C | 0.9600 |
C27—N8—C28 | 134.1 (3) | C1—N1—C2 | 116.9 (3) |
C27—N8—H8N | 110.5 (17) | C11—C16—C15 | 117.4 (3) |
C28—N8—H8N | 115.4 (17) | C11—C16—C17 | 121.2 (3) |
C26—N6—N7 | 116.2 (3) | C15—C16—C17 | 121.4 (3) |
C27—N7—N6 | 121.1 (3) | C4—C5—C8 | 122.0 (3) |
C27—N7—H7N | 119.5 | C4—C5—H5A | 119.0 |
N6—N7—H7N | 119.5 | C8—C5—H5A | 119.0 |
C10—N3—N2 | 120.1 (3) | C5—C4—C3 | 121.2 (3) |
C10—N3—H3N | 120.0 | C5—C4—H4B | 119.4 |
N2—N3—H3N | 120.0 | C3—C4—H4B | 119.4 |
C9—N2—N3 | 115.3 (3) | C30—C29—C28 | 120.2 (3) |
N1—C3—C6 | 122.5 (3) | C30—C29—H29A | 119.9 |
N1—C3—C4 | 121.1 (3) | C28—C29—H29A | 119.9 |
C6—C3—C4 | 116.5 (3) | C13—C14—C15 | 119.9 (3) |
N8—C27—N7 | 112.7 (3) | C13—C14—H14A | 120.1 |
N8—C27—S2 | 129.1 (3) | C15—C14—H14A | 120.1 |
N7—C27—S2 | 118.2 (2) | C31—C30—C29 | 119.6 (4) |
C10—N4—C11 | 131.7 (3) | C31—C30—H30A | 120.2 |
C10—N4—H4N | 111 (2) | C29—C30—H30A | 120.2 |
C11—N4—H4N | 117 (2) | C14—C15—C16 | 121.9 (3) |
N5—C20—C21 | 121.8 (3) | C14—C15—H15A | 119.0 |
N5—C20—C23 | 121.2 (3) | C16—C15—H15A | 119.0 |
C21—C20—C23 | 117.0 (3) | C31—C32—C33 | 121.6 (4) |
C5—C8—C7 | 116.5 (3) | C31—C32—H32A | 119.2 |
C5—C8—C9 | 123.9 (3) | C33—C32—H32A | 119.2 |
C7—C8—C9 | 119.6 (3) | C30—C31—C32 | 120.4 (3) |
C22—C25—C24 | 116.6 (3) | C30—C31—H31A | 119.8 |
C22—C25—C26 | 123.6 (3) | C32—C31—H31A | 119.8 |
C24—C25—C26 | 119.7 (3) | C14—C13—C12 | 119.5 (3) |
C24—C23—C20 | 120.8 (3) | C14—C13—H13A | 120.3 |
C24—C23—H23A | 119.6 | C12—C13—H13A | 120.3 |
C20—C23—H23A | 119.6 | C11—C12—C13 | 121.2 (3) |
C29—C28—C33 | 120.5 (3) | C11—C12—H12A | 119.4 |
C29—C28—N8 | 123.2 (3) | C13—C12—H12A | 119.4 |
C33—C28—N8 | 116.3 (3) | N1—C2—H2B | 109.5 |
N3—C10—N4 | 113.9 (3) | N1—C2—H2C | 109.5 |
N3—C10—S1 | 118.4 (2) | H2B—C2—H2C | 109.5 |
N4—C10—S1 | 127.7 (2) | N1—C2—H2D | 109.5 |
C22—C21—C20 | 121.4 (3) | H2B—C2—H2D | 109.5 |
C22—C21—H21A | 119.3 | H2C—C2—H2D | 109.5 |
C20—C21—H21A | 119.3 | C33—C34—H34A | 109.5 |
C20—N5—C18 | 121.6 (3) | C33—C34—H34B | 109.5 |
C20—N5—C19 | 121.7 (3) | H34A—C34—H34B | 109.5 |
C18—N5—C19 | 116.7 (3) | C33—C34—H34C | 109.5 |
C23—C24—C25 | 122.7 (3) | H34A—C34—H34C | 109.5 |
C23—C24—H24A | 118.7 | H34B—C34—H34C | 109.5 |
C25—C24—H24A | 118.7 | N5—C19—H19A | 109.5 |
N2—C9—C8 | 122.8 (3) | N5—C19—H19B | 109.5 |
N2—C9—H9A | 116.4 (15) | H19A—C19—H19B | 109.5 |
C8—C9—H9A | 120.4 (15) | N5—C19—H19C | 109.5 |
C6—C7—C8 | 122.3 (3) | H19A—C19—H19C | 109.5 |
C6—C7—H7B | 118.8 | H19B—C19—H19C | 109.5 |
C8—C7—H7B | 118.8 | C16—C17—H17A | 109.5 |
N6—C26—C25 | 123.4 (3) | C16—C17—H17B | 109.5 |
N6—C26—H26A | 119.9 (19) | H17A—C17—H17B | 109.5 |
C25—C26—H26A | 116.6 (18) | C16—C17—H17C | 109.5 |
C12—C11—C16 | 120.0 (3) | H17A—C17—H17C | 109.5 |
C12—C11—N4 | 122.7 (3) | H17B—C17—H17C | 109.5 |
C16—C11—N4 | 117.2 (3) | N5—C18—H18A | 109.5 |
C21—C22—C25 | 121.5 (3) | N5—C18—H18B | 109.5 |
C21—C22—H22A | 119.2 | H18A—C18—H18B | 109.5 |
C25—C22—H22A | 119.2 | N5—C18—H18C | 109.5 |
C32—C33—C28 | 117.8 (3) | H18A—C18—H18C | 109.5 |
C32—C33—C34 | 120.3 (3) | H18B—C18—H18C | 109.5 |
C28—C33—C34 | 121.9 (3) | N1—C1—H1A | 109.5 |
C7—C6—C3 | 121.4 (3) | N1—C1—H1B | 109.5 |
C7—C6—H6B | 119.3 | H1A—C1—H1B | 109.5 |
C3—C6—H6B | 119.3 | N1—C1—H1C | 109.5 |
C3—N1—C1 | 122.2 (3) | H1A—C1—H1C | 109.5 |
C3—N1—C2 | 120.3 (3) | H1B—C1—H1C | 109.5 |
D—H···A | D—H | H···A | D···A | D—H···A |
N4—H4N···N2 | 0.95 (3) | 2.05 (3) | 2.587 (3) | 114 (3) |
C12—H12A···S1 | 0.93 | 2.64 | 3.239 (4) | 123 |
C29—H29A···S2 | 0.93 | 2.57 | 3.257 (4) | 131 |
N7—H7N···S1i | 0.86 | 2.61 | 3.458 (3) | 170 |
N3—H3N···S2ii | 0.86 | 2.59 | 3.439 (3) | 171 |
N8—H8N···N6 | 0.97 (3) | 2.01 (3) | 2.587 (4) | 116 (2) |
Symmetry codes: (i) x, y, z+1; (ii) x, y, z−1. |
Experimental details
Crystal data | |
Chemical formula | C17H20N4S |
Mr | 312.43 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 173 |
a, b, c (Å) | 9.172 (3), 12.224 (4), 15.563 (5) |
α, β, γ (°) | 86.933 (6), 86.990 (7), 70.382 (6) |
V (Å3) | 1640.3 (9) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.20 |
Crystal size (mm) | 0.20 × 0.15 × 0.03 |
Data collection | |
Diffractometer | Brucker SMART APEX diffractometer |
Absorption correction | Multi-scan (SADABS; Sheldrick,2008) |
Tmin, Tmax | 0.961, 0.994 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 7929, 5640, 3127 |
Rint | 0.027 |
(sin θ/λ)max (Å−1) | 0.595 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.058, 0.155, 0.95 |
No. of reflections | 5640 |
No. of parameters | 419 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.29, −0.17 |
Computer programs: SMART (Bruker, 2001), SAINT (Bruker, 2001), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), ORTEP-3 for Windows (Farrugia, 2012).
D—H···A | D—H | H···A | D···A | D—H···A |
N4—H4N···N2 | 0.95 (3) | 2.05 (3) | 2.587 (3) | 114 (3) |
C12—H12A···S1 | 0.93 | 2.64 | 3.239 (4) | 123 |
C29—H29A···S2 | 0.93 | 2.57 | 3.257 (4) | 131 |
N7—H7N···S1i | 0.86 | 2.61 | 3.458 (3) | 169.7 |
N3—H3N···S2ii | 0.86 | 2.59 | 3.439 (3) | 170.5 |
N8—H8N···N6 | 0.97 (3) | 2.01 (3) | 2.587 (4) | 116 (2) |
Symmetry codes: (i) x, y, z+1; (ii) x, y, z−1. |
Acknowledgements
This work was supported financially by the National Natural Science Foundation of China (No. 21271150) and the Natural Science Foundation of Fujian Province (No. 2010 J01048).
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This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.
Recently, anions recognition and sensing has attracted growing attentions due to their important roles in the fields of environmental science, biology, catalysis and medicine (Sessler et al. 2006). Substantial progress has been made in the development of anion receptors (Amendola et al. 2006, Gale et al. 2006, Perez & Riera 2008, Amendola et al. 2009, Kowol et al. 2010, Haridas et al. 2012). Thiosemicarbazide has been widely used in catalysis, drug, bacterialcide, flotation agent, (Pouralimardan et al. 2007). Some thiosemicarbazide derivatives show interesting biological effects, such as anticancer and anti-HIV properties (Pandeya et al. 1999; Fahlbusch et al. 2006). There are also a few reports of thiosemicarbazide acting as anion acceptors (Chikate et al. 2005). The introduction of a strong electron-donating group such as the N,N-dimethylanilino group through a double bond imparts new properties that are not commonly observed for the parent thiourea. As part of our work in this area, we report here the synthesis and structure of the title compound.The asymmetric unit of the title compound, C17H20N4S, consists of two crystallographically independent molecules. The main differences of both molecules are the dihedral angles between the benzene rings, 19.99 (17)° and 9.72 (17)°. In the crystal, molecules are linked by weak intermolecular N—H···S hydrogen bonds with set graph-motif R22(8) (Bernstein et al., 1995). Intramolecular C—H···S and N—H···N hydrogen bonds are observe. In both molecules, all of the N atoms and two of the S atoms are involved in hydrogen bonding, with an average H···S distance of 2.61Å and N— H···S angles in the range 170–171°. The molecules have a trans configuration about the C=N double bond.