organic compounds
(2R,3R)-N-(4-Chlorophenyl)-2,3-dihydroxy-N′-(5-phenyl-1,3,4-thiadiazol-2-yl)succinamide
aState Key Laboratory of Food Science and Technology, Nanchang University, 330047 Nanchang, Jiangxi, People's Republic of China, and bNanchang University School of Pharmaceutical Science, 330006 Nanchang, Jiangxi, People's Republic of China
*Correspondence e-mail: huiminghuang@yahoo.cn
In the structure of the title compound, C18H15ClN4O4S, the dihedral angle between the two benzene rings is 1.4 (3)°. The angle between the phenyl ring and thiadiazole ring is 5.8 (4)°. The conformations of the N—H and C=O bonds are anti with respect to each other. In the molecules are linked by intermolecular O—H⋯N, N—H⋯O and O—H⋯O hydrogen bonds, forming a three-dimensional network.
Related literature
For the synthesis, see: Marson & Melling (2005); Tu et al. (2008); Shriner & Furrow (1955). For related structures, see: Watadani et al. (2005); Li et al. (2008).
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: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL.
Supporting information
10.1107/S1600536810007919/im2182sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536810007919/im2182Isup2.hkl
To a solution of 2-amino-5-phenyl-1,3,4-thiadiazole (10 mmol) in THF was added diacetyl-L-tartaric anhydride (12 mmol). After the mixture was stirred at room temperature for 16 h, N,N-dicyclohexylcarbodiimide (9 mmol) and p-chloroaniline (9 mmol) in THF were added to the mixture. The reaction mixture was stirred at room temperature overnight. After insoluble material was filtered off the filtrate was evaporated in vacuo. The residual was hydrolyzed by a solution of K2CO3 in methanol at 65°C for 2 h and recrystallized from THF to afford the target compound. Yield: 3.06 g, 81%, m.p. 221-222°C. Colorless block-shaped single crystals of the title compound suitable for X-ray
precipitated after several days.H atoms were positioned geometrically and refined using a riding model, with C—H = 0.93–0.96 Å, O—H = 0.82–0.85 Å and N—H = 0.86 Å, Uiso(H) = 1.2Ueq(C,N), and 1.5Ueq(O). The
is undoubtly as described since starting compounds were used and the reaction conditions are not considered to lead to racemisation or inversion.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: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).C18H15ClN4O4S | F(000) = 864 |
Mr = 418.85 | Dx = 1.502 Mg m−3 |
Monoclinic, C2 | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: C 2y | Cell parameters from 2277 reflections |
a = 41.381 (3) Å | θ = 2.4–27.9° |
b = 5.1744 (5) Å | µ = 0.35 mm−1 |
c = 8.7442 (9) Å | T = 298 K |
β = 98.315 (1)° | Block, colourless |
V = 1852.6 (3) Å3 | 0.46 × 0.40 × 0.11 mm |
Z = 4 |
Bruker SMART CCD area-detector diffractometer | 2697 independent reflections |
Radiation source: fine-focus sealed tube | 2319 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.022 |
phi and ω scans | θmax = 25.0°, θmin = 2.0° |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | h = −44→48 |
Tmin = 0.855, Tmax = 0.962 | k = −6→4 |
4632 measured reflections | l = −10→10 |
Refinement on F2 | Secondary atom site location: difference Fourier map |
Least-squares matrix: full | Hydrogen site location: inferred from neighbouring sites |
R[F2 > 2σ(F2)] = 0.036 | H-atom parameters constrained |
wR(F2) = 0.091 | w = 1/[σ2(Fo2) + (0.0471P)2 + 0.5765P] where P = (Fo2 + 2Fc2)/3 |
S = 1.04 | (Δ/σ)max = 0.001 |
2697 reflections | Δρmax = 0.19 e Å−3 |
253 parameters | Δρmin = −0.15 e Å−3 |
1 restraint | Absolute structure: Flack (1983), 863 Friedel pairs |
Primary atom site location: structure-invariant direct methods | Absolute structure parameter: 0.03 (8) |
C18H15ClN4O4S | V = 1852.6 (3) Å3 |
Mr = 418.85 | Z = 4 |
Monoclinic, C2 | Mo Kα radiation |
a = 41.381 (3) Å | µ = 0.35 mm−1 |
b = 5.1744 (5) Å | T = 298 K |
c = 8.7442 (9) Å | 0.46 × 0.40 × 0.11 mm |
β = 98.315 (1)° |
Bruker SMART CCD area-detector diffractometer | 2697 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | 2319 reflections with I > 2σ(I) |
Tmin = 0.855, Tmax = 0.962 | Rint = 0.022 |
4632 measured reflections |
R[F2 > 2σ(F2)] = 0.036 | H-atom parameters constrained |
wR(F2) = 0.091 | Δρmax = 0.19 e Å−3 |
S = 1.04 | Δρmin = −0.15 e Å−3 |
2697 reflections | Absolute structure: Flack (1983), 863 Friedel pairs |
253 parameters | Absolute structure parameter: 0.03 (8) |
1 restraint |
Geometry. All esds (except the esd in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell esds are taken into account individually in the estimation of esds in distances, angles and torsion angles; correlations between esds in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell esds is used for estimating esds 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 | ||
Cl1 | 0.51651 (2) | 0.5674 (3) | 0.31490 (11) | 0.0776 (4) | |
N1 | 0.82422 (6) | 0.6761 (7) | 0.6878 (3) | 0.0533 (8) | |
N2 | 0.85606 (6) | 0.7102 (6) | 0.7553 (3) | 0.0510 (8) | |
N3 | 0.77780 (5) | 0.4311 (5) | 0.7013 (3) | 0.0438 (7) | |
H3B | 0.7686 | 0.5112 | 0.6203 | 0.053* | |
N4 | 0.64966 (5) | 0.5279 (6) | 0.6689 (3) | 0.0412 (6) | |
H4A | 0.6589 | 0.6749 | 0.6906 | 0.049* | |
O1 | 0.76958 (5) | 0.1304 (5) | 0.8778 (3) | 0.0567 (7) | |
O2 | 0.65669 (5) | 0.0938 (5) | 0.7001 (3) | 0.0587 (6) | |
O3 | 0.72236 (4) | 0.3604 (6) | 0.5396 (2) | 0.0508 (6) | |
H3 | 0.7052 | 0.3206 | 0.4860 | 0.076* | |
O4 | 0.70977 (5) | 0.6252 (4) | 0.8040 (2) | 0.0485 (6) | |
H4 | 0.7120 | 0.6645 | 0.8958 | 0.073* | |
S1 | 0.833503 (16) | 0.34609 (19) | 0.90607 (8) | 0.0471 (2) | |
C1 | 0.75941 (7) | 0.2576 (6) | 0.7638 (3) | 0.0394 (8) | |
C2 | 0.72451 (6) | 0.2352 (7) | 0.6839 (3) | 0.0404 (8) | |
H2 | 0.7187 | 0.0524 | 0.6681 | 0.048* | |
C3 | 0.70219 (6) | 0.3600 (7) | 0.7875 (3) | 0.0378 (6) | |
H3A | 0.7059 | 0.2776 | 0.8894 | 0.045* | |
C4 | 0.66679 (6) | 0.3166 (7) | 0.7157 (3) | 0.0386 (7) | |
C5 | 0.80992 (7) | 0.4943 (7) | 0.7539 (3) | 0.0412 (8) | |
C6 | 0.86447 (6) | 0.5530 (7) | 0.8697 (3) | 0.0374 (7) | |
C7 | 0.89748 (6) | 0.5497 (7) | 0.9587 (3) | 0.0363 (7) | |
C8 | 0.92006 (7) | 0.7319 (7) | 0.9290 (4) | 0.0510 (9) | |
H8 | 0.9142 | 0.8595 | 0.8553 | 0.061* | |
C9 | 0.95150 (8) | 0.7257 (8) | 1.0084 (4) | 0.0590 (10) | |
H9 | 0.9667 | 0.8478 | 0.9869 | 0.071* | |
C10 | 0.96029 (7) | 0.5415 (8) | 1.1180 (4) | 0.0557 (9) | |
H10 | 0.9814 | 0.5391 | 1.1716 | 0.067* | |
C11 | 0.93800 (7) | 0.3592 (9) | 1.1492 (4) | 0.0558 (9) | |
H11 | 0.9441 | 0.2335 | 1.2238 | 0.067* | |
C12 | 0.90653 (7) | 0.3624 (8) | 1.0698 (3) | 0.0469 (8) | |
H12 | 0.8915 | 0.2389 | 1.0911 | 0.056* | |
C13 | 0.61733 (6) | 0.5301 (7) | 0.5857 (3) | 0.0373 (7) | |
C14 | 0.60929 (7) | 0.7228 (7) | 0.4779 (3) | 0.0464 (8) | |
H14 | 0.6250 | 0.8437 | 0.4602 | 0.056* | |
C15 | 0.57817 (8) | 0.7379 (7) | 0.3959 (4) | 0.0505 (9) | |
H15 | 0.5727 | 0.8704 | 0.3251 | 0.061* | |
C16 | 0.55547 (7) | 0.5544 (7) | 0.4205 (3) | 0.0465 (8) | |
C17 | 0.56310 (6) | 0.3612 (8) | 0.5266 (4) | 0.0505 (8) | |
H17 | 0.5475 | 0.2388 | 0.5428 | 0.061* | |
C18 | 0.59436 (6) | 0.3490 (8) | 0.6101 (3) | 0.0455 (7) | |
H18 | 0.5997 | 0.2183 | 0.6824 | 0.055* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Cl1 | 0.0454 (5) | 0.1052 (10) | 0.0745 (6) | 0.0098 (6) | −0.0174 (4) | −0.0027 (6) |
N1 | 0.0330 (13) | 0.072 (2) | 0.0507 (15) | −0.0065 (14) | −0.0070 (11) | 0.0187 (15) |
N2 | 0.0342 (13) | 0.067 (2) | 0.0487 (15) | −0.0096 (14) | −0.0045 (11) | 0.0138 (15) |
N3 | 0.0319 (12) | 0.057 (2) | 0.0389 (13) | −0.0026 (12) | −0.0077 (10) | 0.0075 (12) |
N4 | 0.0353 (12) | 0.0280 (14) | 0.0570 (14) | −0.0032 (12) | −0.0039 (10) | −0.0028 (13) |
O1 | 0.0445 (11) | 0.0624 (18) | 0.0572 (13) | −0.0051 (12) | −0.0125 (10) | 0.0186 (13) |
O2 | 0.0386 (11) | 0.0314 (14) | 0.1006 (18) | −0.0036 (11) | −0.0086 (11) | 0.0009 (13) |
O3 | 0.0376 (10) | 0.0773 (17) | 0.0334 (10) | −0.0068 (13) | −0.0091 (8) | −0.0006 (12) |
O4 | 0.0474 (12) | 0.0397 (14) | 0.0545 (12) | −0.0058 (11) | −0.0056 (9) | −0.0140 (10) |
S1 | 0.0327 (3) | 0.0557 (6) | 0.0486 (4) | −0.0064 (4) | −0.0085 (3) | 0.0129 (4) |
C1 | 0.0365 (15) | 0.043 (2) | 0.0369 (15) | 0.0019 (14) | −0.0022 (13) | −0.0028 (14) |
C2 | 0.0332 (15) | 0.042 (2) | 0.0422 (16) | −0.0023 (14) | −0.0063 (12) | −0.0065 (15) |
C3 | 0.0371 (14) | 0.0351 (17) | 0.0385 (14) | −0.0033 (16) | −0.0036 (11) | 0.0013 (16) |
C4 | 0.0350 (14) | 0.0327 (19) | 0.0469 (15) | −0.0010 (15) | 0.0023 (12) | −0.0036 (15) |
C5 | 0.0333 (14) | 0.053 (2) | 0.0356 (14) | 0.0019 (15) | −0.0020 (12) | 0.0008 (15) |
C6 | 0.0333 (14) | 0.043 (2) | 0.0347 (14) | 0.0013 (15) | 0.0020 (11) | −0.0008 (15) |
C7 | 0.0284 (13) | 0.042 (2) | 0.0374 (14) | −0.0007 (14) | 0.0016 (11) | −0.0050 (15) |
C8 | 0.0420 (17) | 0.055 (2) | 0.0530 (19) | −0.0029 (17) | −0.0049 (14) | 0.0103 (17) |
C9 | 0.0375 (17) | 0.066 (3) | 0.071 (2) | −0.0122 (17) | −0.0017 (16) | 0.007 (2) |
C10 | 0.0316 (15) | 0.062 (3) | 0.068 (2) | 0.0018 (18) | −0.0092 (14) | 0.000 (2) |
C11 | 0.0433 (16) | 0.061 (2) | 0.0585 (19) | 0.007 (2) | −0.0093 (14) | 0.012 (2) |
C12 | 0.0386 (14) | 0.048 (2) | 0.0519 (17) | −0.0052 (18) | −0.0012 (13) | 0.0067 (19) |
C13 | 0.0312 (13) | 0.0354 (18) | 0.0439 (15) | 0.0022 (14) | 0.0011 (11) | −0.0047 (15) |
C14 | 0.0459 (17) | 0.040 (2) | 0.0516 (18) | −0.0033 (15) | 0.0001 (14) | 0.0037 (16) |
C15 | 0.0555 (19) | 0.046 (2) | 0.0463 (17) | 0.0077 (17) | −0.0040 (15) | 0.0056 (16) |
C16 | 0.0377 (15) | 0.053 (2) | 0.0461 (16) | 0.0080 (18) | −0.0027 (13) | −0.0106 (17) |
C17 | 0.0324 (14) | 0.047 (2) | 0.071 (2) | −0.0044 (18) | 0.0031 (14) | −0.001 (2) |
C18 | 0.0354 (14) | 0.0396 (19) | 0.0599 (18) | 0.0019 (17) | 0.0014 (13) | 0.0069 (19) |
Cl1—C16 | 1.739 (3) | C6—C7 | 1.471 (3) |
N1—C5 | 1.292 (4) | C7—C8 | 1.379 (4) |
N1—N2 | 1.375 (3) | C7—C12 | 1.385 (5) |
N2—C6 | 1.297 (4) | C8—C9 | 1.384 (4) |
N3—C1 | 1.343 (4) | C8—H8 | 0.9300 |
N3—C5 | 1.381 (3) | C9—C10 | 1.363 (5) |
N3—H3B | 0.8600 | C9—H9 | 0.9300 |
N4—C4 | 1.335 (4) | C10—C11 | 1.374 (5) |
N4—C13 | 1.427 (3) | C10—H10 | 0.9300 |
N4—H4A | 0.8600 | C11—C12 | 1.384 (4) |
O1—C1 | 1.218 (3) | C11—H11 | 0.9300 |
O2—C4 | 1.227 (4) | C12—H12 | 0.9300 |
O3—C2 | 1.410 (4) | C13—C18 | 1.373 (4) |
O3—H3 | 0.8200 | C13—C14 | 1.380 (5) |
O4—C3 | 1.411 (4) | C14—C15 | 1.383 (4) |
O4—H4 | 0.8200 | C14—H14 | 0.9300 |
S1—C5 | 1.713 (3) | C15—C16 | 1.374 (5) |
S1—C6 | 1.734 (3) | C15—H15 | 0.9300 |
C1—C2 | 1.515 (4) | C16—C17 | 1.369 (5) |
C2—C3 | 1.528 (4) | C17—C18 | 1.392 (4) |
C2—H2 | 0.9800 | C17—H17 | 0.9300 |
C3—C4 | 1.525 (3) | C18—H18 | 0.9300 |
C3—H3A | 0.9800 | ||
C5—N1—N2 | 112.0 (2) | C8—C7—C6 | 119.7 (3) |
C6—N2—N1 | 112.6 (3) | C12—C7—C6 | 121.0 (3) |
C1—N3—C5 | 126.7 (2) | C7—C8—C9 | 120.2 (3) |
C1—N3—H3B | 116.7 | C7—C8—H8 | 119.9 |
C5—N3—H3B | 116.7 | C9—C8—H8 | 119.9 |
C4—N4—C13 | 125.5 (3) | C10—C9—C8 | 120.3 (3) |
C4—N4—H4A | 117.3 | C10—C9—H9 | 119.8 |
C13—N4—H4A | 117.3 | C8—C9—H9 | 119.8 |
C2—O3—H3 | 109.5 | C9—C10—C11 | 120.1 (3) |
C3—O4—H4 | 109.5 | C9—C10—H10 | 120.0 |
C5—S1—C6 | 86.24 (14) | C11—C10—H10 | 120.0 |
O1—C1—N3 | 123.0 (3) | C10—C11—C12 | 120.1 (3) |
O1—C1—C2 | 122.0 (3) | C10—C11—H11 | 119.9 |
N3—C1—C2 | 115.0 (2) | C12—C11—H11 | 119.9 |
O3—C2—C1 | 108.1 (2) | C11—C12—C7 | 120.0 (3) |
O3—C2—C3 | 111.8 (3) | C11—C12—H12 | 120.0 |
C1—C2—C3 | 108.2 (2) | C7—C12—H12 | 120.0 |
O3—C2—H2 | 109.6 | C18—C13—C14 | 119.7 (3) |
C1—C2—H2 | 109.6 | C18—C13—N4 | 122.3 (3) |
C3—C2—H2 | 109.6 | C14—C13—N4 | 118.0 (3) |
O4—C3—C4 | 111.8 (3) | C13—C14—C15 | 120.6 (3) |
O4—C3—C2 | 109.1 (2) | C13—C14—H14 | 119.7 |
C4—C3—C2 | 108.7 (2) | C15—C14—H14 | 119.7 |
O4—C3—H3A | 109.0 | C16—C15—C14 | 119.1 (3) |
C4—C3—H3A | 109.0 | C16—C15—H15 | 120.4 |
C2—C3—H3A | 109.0 | C14—C15—H15 | 120.4 |
O2—C4—N4 | 125.3 (3) | C17—C16—C15 | 121.0 (3) |
O2—C4—C3 | 118.4 (3) | C17—C16—Cl1 | 119.6 (3) |
N4—C4—C3 | 116.2 (3) | C15—C16—Cl1 | 119.5 (3) |
N1—C5—N3 | 120.3 (3) | C16—C17—C18 | 119.6 (3) |
N1—C5—S1 | 115.3 (2) | C16—C17—H17 | 120.2 |
N3—C5—S1 | 124.4 (3) | C18—C17—H17 | 120.2 |
N2—C6—C7 | 122.7 (3) | C13—C18—C17 | 120.0 (3) |
N2—C6—S1 | 113.92 (19) | C13—C18—H18 | 120.0 |
C7—C6—S1 | 123.4 (2) | C17—C18—H18 | 120.0 |
C8—C7—C12 | 119.3 (2) | ||
C5—N1—N2—C6 | −0.1 (4) | C5—S1—C6—C7 | −179.0 (3) |
C5—N3—C1—O1 | −0.5 (5) | N2—C6—C7—C8 | 5.0 (5) |
C5—N3—C1—C2 | 178.1 (3) | S1—C6—C7—C8 | −175.8 (2) |
O1—C1—C2—O3 | −167.3 (3) | N2—C6—C7—C12 | −173.5 (3) |
N3—C1—C2—O3 | 14.1 (4) | S1—C6—C7—C12 | 5.8 (4) |
O1—C1—C2—C3 | 71.5 (4) | C12—C7—C8—C9 | 0.6 (5) |
N3—C1—C2—C3 | −107.1 (3) | C6—C7—C8—C9 | −177.9 (3) |
O3—C2—C3—O4 | −55.8 (3) | C7—C8—C9—C10 | −0.8 (6) |
C1—C2—C3—O4 | 63.0 (3) | C8—C9—C10—C11 | 0.6 (6) |
O3—C2—C3—C4 | 66.4 (3) | C9—C10—C11—C12 | −0.2 (6) |
C1—C2—C3—C4 | −174.8 (3) | C10—C11—C12—C7 | 0.0 (6) |
C13—N4—C4—O2 | −3.5 (5) | C8—C7—C12—C11 | −0.2 (5) |
C13—N4—C4—C3 | 173.6 (2) | C6—C7—C12—C11 | 178.3 (3) |
O4—C3—C4—O2 | −177.4 (3) | C4—N4—C13—C18 | 34.5 (4) |
C2—C3—C4—O2 | 62.1 (4) | C4—N4—C13—C14 | −145.7 (3) |
O4—C3—C4—N4 | 5.3 (3) | C18—C13—C14—C15 | 1.1 (5) |
C2—C3—C4—N4 | −115.3 (3) | N4—C13—C14—C15 | −178.7 (3) |
N2—N1—C5—N3 | −179.7 (3) | C13—C14—C15—C16 | −1.5 (5) |
N2—N1—C5—S1 | 0.4 (4) | C14—C15—C16—C17 | 1.2 (5) |
C1—N3—C5—N1 | −176.0 (3) | C14—C15—C16—Cl1 | −178.6 (2) |
C1—N3—C5—S1 | 3.9 (5) | C15—C16—C17—C18 | −0.5 (5) |
C6—S1—C5—N1 | −0.4 (3) | Cl1—C16—C17—C18 | 179.4 (3) |
C6—S1—C5—N3 | 179.6 (3) | C14—C13—C18—C17 | −0.2 (5) |
N1—N2—C6—C7 | 179.1 (3) | N4—C13—C18—C17 | 179.5 (3) |
N1—N2—C6—S1 | −0.2 (4) | C16—C17—C18—C13 | −0.1 (5) |
C5—S1—C6—N2 | 0.4 (3) |
D—H···A | D—H | H···A | D···A | D—H···A |
O3—H3···N1i | 0.82 | 1.95 | 2.733 (3) | 159 |
N3—H3B···O3ii | 0.86 | 2.35 | 3.061 (4) | 140 |
O4—H4···O1iii | 0.82 | 2.02 | 2.790 (3) | 155 |
N4—H4A···O2iv | 0.86 | 2.17 | 2.951 (4) | 151 |
Symmetry codes: (i) −x+3/2, y−1/2, −z+1; (ii) −x+3/2, y+1/2, −z+1; (iii) −x+3/2, y+1/2, −z+2; (iv) x, y+1, z. |
Experimental details
Crystal data | |
Chemical formula | C18H15ClN4O4S |
Mr | 418.85 |
Crystal system, space group | Monoclinic, C2 |
Temperature (K) | 298 |
a, b, c (Å) | 41.381 (3), 5.1744 (5), 8.7442 (9) |
β (°) | 98.315 (1) |
V (Å3) | 1852.6 (3) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.35 |
Crystal size (mm) | 0.46 × 0.40 × 0.11 |
Data collection | |
Diffractometer | Bruker SMART CCD area-detector diffractometer |
Absorption correction | Multi-scan (SADABS; Sheldrick, 1996) |
Tmin, Tmax | 0.855, 0.962 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 4632, 2697, 2319 |
Rint | 0.022 |
(sin θ/λ)max (Å−1) | 0.595 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.036, 0.091, 1.04 |
No. of reflections | 2697 |
No. of parameters | 253 |
No. of restraints | 1 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.19, −0.15 |
Absolute structure | Flack (1983), 863 Friedel pairs |
Absolute structure parameter | 0.03 (8) |
Computer programs: SMART (Bruker, 2001), SAINT (Bruker, 2001), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
O3—H3···N1i | 0.82 | 1.95 | 2.733 (3) | 159 |
N3—H3B···O3ii | 0.86 | 2.35 | 3.061 (4) | 140 |
O4—H4···O1iii | 0.82 | 2.02 | 2.790 (3) | 155 |
N4—H4A···O2iv | 0.86 | 2.17 | 2.951 (4) | 151 |
Symmetry codes: (i) −x+3/2, y−1/2, −z+1; (ii) −x+3/2, y+1/2, −z+1; (iii) −x+3/2, y+1/2, −z+2; (iv) x, y+1, z. |
Acknowledgements
The work was supported by the Science and Technology Research Project of Jiangxi Provincial Educational Department (grant No. GJJ09076), the Natural Science Foundation of Jiangxi Province, China (grant No. 0620074) and the Scientific Research Fund of Nanchang University.
References
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The present tartaric acid derivate is in continuation to our previously reported crystal structure of thiadiazole scaffold compounds (Li et al., 2008). The title compound (Fig. 1) was synthesized according to literature procedures (Marson & Melling 2005; Tu et al., 2008; Shriner & Furrow 1995) and crystallized in the monoclinic crystal system. The dihedral angle between the two benzene rings is 1.4 (3)°; the angle between the benzene ring (C7-C12) and thiadiazole ring is 5.8 (4)°. The conformations of the N—H and C=O bonds are anti with respect to each other. Bond lengths and angles are in normal ranges and comparable to those in related structures (Watadani et al., 2005). In the crystal structure, molecules are linked by intermolecular O—H···N, N—H···O and O—H···O hydrogen bonds forming a three-dimensional network (Table 1, Figure 2).