organic compounds
2-[(2-Hydroxy-1-naphthyl)methyleneamino]-1,3-benzothiazole
aCollege of Chemistry and Chemical Engineering, Liaocheng University, Shandong 252059, People's Republic of China
*Correspondence e-mail: handongyin@163.com
In the title compound, C18H12N2OS, the dihedral angle between the mean planes of the aromatic ring systems is 7.26 (8)°. There is an intramolecular O—H⋯N hydrogen bond, forming a six-membered ring. In the intermolecular C—H⋯N hydrogen bonds link the molecules into a one-dimensional chain.
Experimental
Crystal data
|
Refinement
|
Data collection: SMART (Siemens, 1996); cell SAINT (Siemens, 1996); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL.
Supporting information
10.1107/S1600536808029644/sg2264sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536808029644/sg2264Isup2.hkl
A mixture of 2-aminobenzothiazole (1 mmol) and 2-hydroxy-1-naphthaldehyde (1 mmol) in absolute ethanol (15 ml) was heated under reflux with stirring for 5 h and then filtered. The resulting clear orange solution was diffused diethyl ether vapor at room temperature for 16 days, after which large orange block-shaped crystals of the title complex suitable for X-ray
were obtained.All H-atoms were positioned geometrically and refined using a riding model, with C—H = 0.96 Å (methylene) or 0.93 Å (aromatic), 0.82 Å (hydroxyl) and Uiso(H) =1.2Ueq(C).
Data collection: SMART (Siemens, 1996); cell
SAINT (Siemens, 1996); data reduction: SAINT (Siemens, 1996); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).C18H12N2OS | F(000) = 632 |
Mr = 304.36 | Dx = 1.426 Mg m−3 |
Monoclinic, P21/n | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2yn | Cell parameters from 1399 reflections |
a = 9.7439 (13) Å | θ = 2.5–24.1° |
b = 15.1506 (16) Å | µ = 0.23 mm−1 |
c = 9.8082 (14) Å | T = 293 K |
β = 101.788 (2)° | Block, orange |
V = 1417.4 (3) Å3 | 0.29 × 0.24 × 0.16 mm |
Z = 4 |
Siemens SMART CCD area-detector diffractometer | 2493 independent reflections |
Radiation source: fine-focus sealed tube | 1492 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.048 |
ϕ and ω scans | θmax = 25.0°, θmin = 2.5° |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | h = −6→11 |
Tmin = 0.936, Tmax = 0.964 | k = −18→16 |
6948 measured reflections | l = −10→11 |
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)] = 0.046 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.122 | H-atom parameters constrained |
S = 1.06 | w = 1/[σ2(Fo2) + (0.0495P)2 + 0.1122P] where P = (Fo2 + 2Fc2)/3 |
2493 reflections | (Δ/σ)max = 0.001 |
199 parameters | Δρmax = 0.22 e Å−3 |
0 restraints | Δρmin = −0.27 e Å−3 |
C18H12N2OS | V = 1417.4 (3) Å3 |
Mr = 304.36 | Z = 4 |
Monoclinic, P21/n | Mo Kα radiation |
a = 9.7439 (13) Å | µ = 0.23 mm−1 |
b = 15.1506 (16) Å | T = 293 K |
c = 9.8082 (14) Å | 0.29 × 0.24 × 0.16 mm |
β = 101.788 (2)° |
Siemens SMART CCD area-detector diffractometer | 2493 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | 1492 reflections with I > 2σ(I) |
Tmin = 0.936, Tmax = 0.964 | Rint = 0.048 |
6948 measured reflections |
R[F2 > 2σ(F2)] = 0.046 | 0 restraints |
wR(F2) = 0.122 | H-atom parameters constrained |
S = 1.06 | Δρmax = 0.22 e Å−3 |
2493 reflections | Δρmin = −0.27 e Å−3 |
199 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 | ||
N1 | 0.1366 (2) | 0.12262 (16) | 1.0288 (2) | 0.0448 (6) | |
N2 | 0.2042 (2) | −0.00510 (15) | 0.9113 (2) | 0.0411 (6) | |
O1 | 0.2722 (2) | −0.14394 (13) | 0.7886 (2) | 0.0557 (6) | |
H1 | 0.2814 | −0.1033 | 0.8450 | 0.084* | |
S1 | 0.39272 (8) | 0.06918 (6) | 1.12063 (8) | 0.0516 (3) | |
C1 | 0.0880 (3) | −0.00369 (18) | 0.8179 (3) | 0.0392 (7) | |
H1A | 0.0245 | 0.0416 | 0.8218 | 0.047* | |
C2 | 0.0532 (3) | −0.06771 (18) | 0.7105 (3) | 0.0345 (7) | |
C3 | 0.1482 (3) | −0.13637 (19) | 0.6999 (3) | 0.0412 (7) | |
C4 | 0.1156 (3) | −0.20068 (19) | 0.5945 (3) | 0.0474 (8) | |
H4 | 0.1790 | −0.2457 | 0.5887 | 0.057* | |
C5 | −0.0075 (3) | −0.19716 (19) | 0.5022 (3) | 0.0468 (8) | |
H5 | −0.0275 | −0.2408 | 0.4343 | 0.056* | |
C6 | −0.1079 (3) | −0.12922 (18) | 0.5045 (3) | 0.0386 (7) | |
C7 | −0.0773 (3) | −0.06359 (18) | 0.6093 (3) | 0.0340 (7) | |
C8 | −0.1789 (3) | 0.00355 (18) | 0.6076 (3) | 0.0435 (8) | |
H8 | −0.1626 | 0.0479 | 0.6746 | 0.052* | |
C9 | −0.3009 (3) | 0.0043 (2) | 0.5089 (3) | 0.0520 (9) | |
H9 | −0.3657 | 0.0493 | 0.5100 | 0.062* | |
C10 | −0.3298 (3) | −0.0610 (2) | 0.4072 (3) | 0.0536 (9) | |
H10 | −0.4131 | −0.0598 | 0.3409 | 0.064* | |
C11 | −0.2348 (3) | −0.1267 (2) | 0.4058 (3) | 0.0499 (8) | |
H11 | −0.2542 | −0.1706 | 0.3384 | 0.060* | |
C12 | 0.2275 (3) | 0.06286 (19) | 1.0103 (3) | 0.0407 (7) | |
C13 | 0.1972 (3) | 0.18005 (19) | 1.1355 (3) | 0.0395 (7) | |
C14 | 0.3359 (3) | 0.16080 (19) | 1.1995 (3) | 0.0417 (7) | |
C15 | 0.4076 (3) | 0.2139 (2) | 1.3077 (3) | 0.0507 (8) | |
H15 | 0.5000 | 0.2018 | 1.3502 | 0.061* | |
C16 | 0.3372 (4) | 0.2847 (2) | 1.3493 (3) | 0.0535 (9) | |
H16 | 0.3828 | 0.3205 | 1.4214 | 0.064* | |
C17 | 0.1997 (3) | 0.3034 (2) | 1.2859 (3) | 0.0526 (8) | |
H17 | 0.1551 | 0.3517 | 1.3162 | 0.063* | |
C18 | 0.1283 (3) | 0.2523 (2) | 1.1798 (3) | 0.0474 (8) | |
H18 | 0.0360 | 0.2654 | 1.1380 | 0.057* |
U11 | U22 | U33 | U12 | U13 | U23 | |
N1 | 0.0401 (15) | 0.0450 (16) | 0.0464 (15) | −0.0018 (12) | 0.0022 (12) | −0.0040 (13) |
N2 | 0.0439 (15) | 0.0404 (16) | 0.0376 (14) | −0.0009 (11) | 0.0051 (11) | −0.0026 (12) |
O1 | 0.0471 (14) | 0.0532 (14) | 0.0624 (14) | 0.0129 (10) | 0.0010 (11) | −0.0064 (11) |
S1 | 0.0419 (5) | 0.0566 (6) | 0.0521 (5) | 0.0031 (4) | −0.0004 (4) | −0.0015 (4) |
C1 | 0.0415 (18) | 0.0363 (18) | 0.0411 (17) | 0.0000 (13) | 0.0114 (14) | 0.0002 (14) |
C2 | 0.0372 (17) | 0.0296 (16) | 0.0380 (16) | −0.0015 (13) | 0.0111 (13) | −0.0003 (14) |
C3 | 0.0397 (19) | 0.0419 (19) | 0.0424 (17) | −0.0002 (14) | 0.0094 (14) | 0.0024 (15) |
C4 | 0.051 (2) | 0.0388 (19) | 0.055 (2) | 0.0061 (14) | 0.0168 (16) | −0.0046 (16) |
C5 | 0.057 (2) | 0.040 (2) | 0.0458 (18) | −0.0065 (15) | 0.0164 (16) | −0.0090 (15) |
C6 | 0.0416 (18) | 0.0380 (18) | 0.0370 (17) | −0.0061 (14) | 0.0097 (14) | 0.0037 (14) |
C7 | 0.0389 (17) | 0.0304 (16) | 0.0355 (15) | −0.0019 (13) | 0.0141 (13) | 0.0042 (13) |
C8 | 0.0469 (19) | 0.0368 (19) | 0.0482 (18) | −0.0008 (14) | 0.0130 (15) | −0.0016 (14) |
C9 | 0.040 (2) | 0.051 (2) | 0.063 (2) | 0.0078 (15) | 0.0045 (16) | 0.0094 (18) |
C10 | 0.045 (2) | 0.061 (2) | 0.0485 (19) | −0.0102 (17) | −0.0051 (15) | 0.0084 (18) |
C11 | 0.057 (2) | 0.046 (2) | 0.0450 (19) | −0.0123 (16) | 0.0061 (16) | −0.0008 (16) |
C12 | 0.0388 (18) | 0.0401 (18) | 0.0422 (17) | −0.0010 (14) | 0.0057 (14) | 0.0049 (16) |
C13 | 0.0413 (18) | 0.0428 (19) | 0.0341 (16) | −0.0054 (14) | 0.0072 (14) | 0.0033 (14) |
C14 | 0.0399 (18) | 0.0445 (19) | 0.0403 (16) | −0.0066 (14) | 0.0069 (14) | 0.0080 (15) |
C15 | 0.046 (2) | 0.059 (2) | 0.0432 (18) | −0.0085 (16) | 0.0008 (15) | 0.0042 (17) |
C16 | 0.066 (2) | 0.049 (2) | 0.0438 (19) | −0.0179 (17) | 0.0057 (17) | −0.0044 (16) |
C17 | 0.064 (2) | 0.042 (2) | 0.053 (2) | −0.0047 (16) | 0.0144 (17) | 0.0001 (16) |
C18 | 0.0431 (19) | 0.048 (2) | 0.0494 (19) | −0.0001 (15) | 0.0060 (15) | 0.0004 (16) |
N1—C12 | 1.305 (3) | C7—C8 | 1.417 (4) |
N1—C13 | 1.396 (3) | C8—C9 | 1.371 (4) |
N2—C1 | 1.303 (3) | C8—H8 | 0.9300 |
N2—C12 | 1.402 (3) | C9—C10 | 1.393 (4) |
O1—C3 | 1.342 (3) | C9—H9 | 0.9300 |
O1—H1 | 0.8200 | C10—C11 | 1.360 (4) |
S1—C14 | 1.734 (3) | C10—H10 | 0.9300 |
S1—C12 | 1.749 (3) | C11—H11 | 0.9300 |
C1—C2 | 1.421 (4) | C13—C14 | 1.399 (4) |
C1—H1A | 0.9300 | C13—C18 | 1.400 (4) |
C2—C3 | 1.410 (4) | C14—C15 | 1.399 (4) |
C2—C7 | 1.446 (3) | C15—C16 | 1.380 (4) |
C3—C4 | 1.409 (4) | C15—H15 | 0.9300 |
C4—C5 | 1.348 (4) | C16—C17 | 1.386 (4) |
C4—H4 | 0.9300 | C16—H16 | 0.9300 |
C5—C6 | 1.424 (4) | C17—C18 | 1.368 (4) |
C5—H5 | 0.9300 | C17—H17 | 0.9300 |
C6—C11 | 1.407 (4) | C18—H18 | 0.9300 |
C6—C7 | 1.417 (4) | ||
C12—N1—C13 | 110.0 (2) | C8—C9—H9 | 119.4 |
C1—N2—C12 | 118.0 (2) | C10—C9—H9 | 119.4 |
C3—O1—H1 | 109.5 | C11—C10—C9 | 119.2 (3) |
C14—S1—C12 | 88.99 (14) | C11—C10—H10 | 120.4 |
N2—C1—C2 | 123.5 (3) | C9—C10—H10 | 120.4 |
N2—C1—H1A | 118.3 | C10—C11—C6 | 121.2 (3) |
C2—C1—H1A | 118.3 | C10—C11—H11 | 119.4 |
C3—C2—C1 | 119.8 (3) | C6—C11—H11 | 119.4 |
C3—C2—C7 | 118.6 (2) | N1—C12—N2 | 126.0 (3) |
C1—C2—C7 | 121.5 (2) | N1—C12—S1 | 116.2 (2) |
O1—C3—C2 | 122.2 (3) | N2—C12—S1 | 117.9 (2) |
O1—C3—C4 | 117.1 (3) | N1—C13—C14 | 115.3 (3) |
C2—C3—C4 | 120.8 (3) | N1—C13—C18 | 124.4 (3) |
C5—C4—C3 | 120.1 (3) | C14—C13—C18 | 120.3 (3) |
C5—C4—H4 | 119.9 | C15—C14—C13 | 120.5 (3) |
C3—C4—H4 | 119.9 | C15—C14—S1 | 130.0 (2) |
C4—C5—C6 | 122.5 (3) | C13—C14—S1 | 109.5 (2) |
C4—C5—H5 | 118.7 | C16—C15—C14 | 118.0 (3) |
C6—C5—H5 | 118.7 | C16—C15—H15 | 121.0 |
C11—C6—C7 | 120.3 (3) | C14—C15—H15 | 121.0 |
C11—C6—C5 | 121.3 (3) | C15—C16—C17 | 121.3 (3) |
C7—C6—C5 | 118.4 (3) | C15—C16—H16 | 119.3 |
C8—C7—C6 | 116.9 (2) | C17—C16—H16 | 119.3 |
C8—C7—C2 | 123.6 (2) | C18—C17—C16 | 121.4 (3) |
C6—C7—C2 | 119.5 (2) | C18—C17—H17 | 119.3 |
C9—C8—C7 | 121.1 (3) | C16—C17—H17 | 119.3 |
C9—C8—H8 | 119.4 | C17—C18—C13 | 118.5 (3) |
C7—C8—H8 | 119.4 | C17—C18—H18 | 120.8 |
C8—C9—C10 | 121.3 (3) | C13—C18—H18 | 120.8 |
C12—N2—C1—C2 | 178.8 (2) | C9—C10—C11—C6 | −0.5 (4) |
N2—C1—C2—C3 | −1.2 (4) | C7—C6—C11—C10 | 0.9 (4) |
N2—C1—C2—C7 | 179.9 (2) | C5—C6—C11—C10 | −179.1 (3) |
C1—C2—C3—O1 | 0.1 (4) | C13—N1—C12—N2 | −179.4 (2) |
C7—C2—C3—O1 | 179.1 (2) | C13—N1—C12—S1 | 0.8 (3) |
C1—C2—C3—C4 | 179.8 (2) | C1—N2—C12—N1 | 8.5 (4) |
C7—C2—C3—C4 | −1.3 (4) | C1—N2—C12—S1 | −171.67 (19) |
O1—C3—C4—C5 | 179.8 (2) | C14—S1—C12—N1 | −0.1 (2) |
C2—C3—C4—C5 | 0.1 (4) | C14—S1—C12—N2 | −180.0 (2) |
C3—C4—C5—C6 | 1.0 (4) | C12—N1—C13—C14 | −1.3 (3) |
C4—C5—C6—C11 | 179.3 (3) | C12—N1—C13—C18 | 179.0 (3) |
C4—C5—C6—C7 | −0.8 (4) | N1—C13—C14—C15 | 179.9 (2) |
C11—C6—C7—C8 | −0.7 (3) | C18—C13—C14—C15 | −0.4 (4) |
C5—C6—C7—C8 | 179.3 (2) | N1—C13—C14—S1 | 1.2 (3) |
C11—C6—C7—C2 | 179.5 (2) | C18—C13—C14—S1 | −179.1 (2) |
C5—C6—C7—C2 | −0.5 (3) | C12—S1—C14—C15 | −179.1 (3) |
C3—C2—C7—C8 | −178.3 (2) | C12—S1—C14—C13 | −0.56 (19) |
C1—C2—C7—C8 | 0.7 (4) | C13—C14—C15—C16 | 0.5 (4) |
C3—C2—C7—C6 | 1.4 (3) | S1—C14—C15—C16 | 178.9 (2) |
C1—C2—C7—C6 | −179.6 (2) | C14—C15—C16—C17 | −0.3 (4) |
C6—C7—C8—C9 | 0.1 (4) | C15—C16—C17—C18 | 0.1 (4) |
C2—C7—C8—C9 | 179.9 (2) | C16—C17—C18—C13 | 0.0 (4) |
C7—C8—C9—C10 | 0.3 (4) | N1—C13—C18—C17 | 179.9 (2) |
C8—C9—C10—C11 | −0.1 (4) | C14—C13—C18—C17 | 0.2 (4) |
D—H···A | D—H | H···A | D···A | D—H···A |
C16—H16···N1i | 0.93 | 2.63 | 3.389 (4) | 140 |
O1—H1···N2 | 0.82 | 1.85 | 2.576 (2) | 148 |
Symmetry code: (i) x+1/2, −y+1/2, z+1/2. |
Experimental details
Crystal data | |
Chemical formula | C18H12N2OS |
Mr | 304.36 |
Crystal system, space group | Monoclinic, P21/n |
Temperature (K) | 293 |
a, b, c (Å) | 9.7439 (13), 15.1506 (16), 9.8082 (14) |
β (°) | 101.788 (2) |
V (Å3) | 1417.4 (3) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.23 |
Crystal size (mm) | 0.29 × 0.24 × 0.16 |
Data collection | |
Diffractometer | Siemens SMART CCD area-detector diffractometer |
Absorption correction | Multi-scan (SADABS; Sheldrick, 1996) |
Tmin, Tmax | 0.936, 0.964 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 6948, 2493, 1492 |
Rint | 0.048 |
(sin θ/λ)max (Å−1) | 0.595 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.046, 0.122, 1.06 |
No. of reflections | 2493 |
No. of parameters | 199 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.22, −0.27 |
Computer programs: SMART (Siemens, 1996), SAINT (Siemens, 1996), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).
N1—C12 | 1.305 (3) | O1—C3 | 1.342 (3) |
N1—C13 | 1.396 (3) | S1—C14 | 1.734 (3) |
N2—C1 | 1.303 (3) | S1—C12 | 1.749 (3) |
N2—C12 | 1.402 (3) | ||
C12—N1—C13 | 110.0 (2) | N1—C12—N2 | 126.0 (3) |
C1—N2—C12 | 118.0 (2) | N1—C12—S1 | 116.2 (2) |
C3—O1—H1 | 109.5 | N2—C12—S1 | 117.9 (2) |
C14—S1—C12 | 88.99 (14) | ||
C12—N2—C1—C2 | 178.8 (2) |
D—H···A | D—H | H···A | D···A | D—H···A |
C16—H16···N1i | 0.93 | 2.63 | 3.389 (4) | 139.6 |
O1—H1···N2 | 0.82 | 1.845 | 2.576 (2) | 147.9 |
Symmetry code: (i) x+1/2, −y+1/2, z+1/2. |
Acknowledgements
We acknowledge the National Natural Foundation of China (grant No. 20771053) and the Natural Science Foundation of Shandong Province (2005ZX09) for financial support. This work is also partially supported by the Shandong `Tai-Shan Scholar Research Fund'.
References
Lindoy, L. F., Lip, H. C., Power, L. F. & Rea, T. H. (1976). Inorg. Chem. 15, 1724–1727. CrossRef CAS Web of Science Google Scholar
Sheldrick, G. M. (1996). SADABS. University of Göttingen, Germany. Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Siemens (1996). SMART and SAINT. Siemens Analytical X-ray Instruments Inc., Madison, Wisconsin, USA. Google Scholar
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.
Schiff bases are known to be important due to their applications in the preparation of dyes, liquid crystals and powerful corrosion inhibitors. Further more, they are used in the mechanism of many biochemical processes (Lindoy et al., 1976). We report here the synthesis and crystal structure of the title compound, a new Schiff base compound.
The molecular structure of the title compound is shown in Fig. 1. This compound is nonplanar, with a dihedral angle of 7.39 (5)° between the two benzene rings. There exists an intramolecular O—H···N hydrogen bond, forming a six-membered ring. An E configuration with respect to the C?N bond is shown by the molecule, with a C—N?C—C torsoin angle of 178.8 (2)°.
As seen in Fig.2, the molecules are linked into a one-dimensional chain by intermolecular C—H···N hydrogen bonds (Table 1).