Supporting information
Crystallographic Information File (CIF) https://doi.org/10.1107/S0108270105009832/tr1113sup1.cif | |
Structure factor file (CIF format) https://doi.org/10.1107/S0108270105009832/tr1113Isup2.hkl |
CCDC reference: 275530
The title compound was synthesized and purified as previously reported by Pluta (1994). Small needles were obtained on slow evaporation from a monomethyl ether of diethylene glycol solution. As a result of their limited size, the crystals diffracted too weakly to be studied with conventional X-ray diffraction techniques. Synchrotron radiation was therefore used.
Due to the limited range of motion of the diffractometer available, the completness of the data was low. The H atoms could be located in difference Fourier maps but, due to the low number of reflections, they were fixed at their ideal positions, with C—H distances of 0.93 Å and with Uiso(H) = 1.2Ueq(C). Please check added text.
Data collection: Please provide missing information and reference; cell refinement: Please provide missing information and reference; data reduction: TWINSOLVE (Rigaku/MSC & Prekat, 2002); program(s) used to solve structure: SIR97 (Altomare et al., 1999) in WinGX (Farrugia, 1999); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997) in WinGX (Farrugia, 1999); molecular graphics: Please provide missing information and reference; software used to prepare material for publication: Please provide missing information and reference.
C26H15N3S | Z = 2 |
Mr = 401.47 | F(000) = 416 |
Triclinic, P1 | Dx = 1.404 Mg m−3 |
Hall symbol: -P 1 | Synchrotron radiation, λ = 0.996 Å |
a = 7.9135 (1) Å | Cell parameters from 300 reflections |
b = 9.3622 (4) Å | θ = 5–45° |
c = 13.3280 (5) Å | µ = 0.42 mm−1 |
α = 75.724 (2)° | T = 293 K |
β = 84.369 (1)° | Needle, white |
γ = 84.415 (2)° | 0.80 × 0.01 × 0.01 mm |
V = 949.59 (6) Å3 |
MARCCD 165 detector diffractometer | Rint = 0.048 |
ϕ scans | θmax = 32.9°, θmin = 3.4° |
4040 measured reflections | h = −8→8 |
2099 independent reflections | k = −10→10 |
1983 reflections with I > 2σ(I) | l = −14→14 |
Refinement on F2 | 0 restraints |
Least-squares matrix: full | H-atom parameters constrained |
R[F2 > 2σ(F2)] = 0.051 | w = 1/[σ2(Fo2) + (0.092P)2 + 0.2098P] where P = (Fo2 + 2Fc2)/3 |
wR(F2) = 0.137 | (Δ/σ)max < 0.001 |
S = 1.06 | Δρmax = 0.17 e Å−3 |
2099 reflections | Δρmin = −0.20 e Å−3 |
271 parameters |
C26H15N3S | γ = 84.415 (2)° |
Mr = 401.47 | V = 949.59 (6) Å3 |
Triclinic, P1 | Z = 2 |
a = 7.9135 (1) Å | Synchrotron radiation, λ = 0.996 Å |
b = 9.3622 (4) Å | µ = 0.42 mm−1 |
c = 13.3280 (5) Å | T = 293 K |
α = 75.724 (2)° | 0.80 × 0.01 × 0.01 mm |
β = 84.369 (1)° |
MARCCD 165 detector diffractometer | 1983 reflections with I > 2σ(I) |
4040 measured reflections | Rint = 0.048 |
2099 independent reflections | θmax = 32.9° |
R[F2 > 2σ(F2)] = 0.051 | 0 restraints |
wR(F2) = 0.137 | H-atom parameters constrained |
S = 1.06 | Δρmax = 0.17 e Å−3 |
2099 reflections | Δρmin = −0.20 e Å−3 |
271 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. |
x | y | z | Uiso*/Ueq | ||
S | 0.17109 (7) | 0.09451 (7) | 0.02566 (4) | 0.0540 (3) | |
N1 | 0.1020 (2) | 0.4516 (2) | 0.12709 (15) | 0.0521 (6) | |
N2 | 0.4089 (3) | −0.2903 (3) | 0.03093 (15) | 0.0554 (6) | |
N3 | 0.6848 (2) | 0.0723 (2) | 0.25702 (14) | 0.0515 (6) | |
C2 | 0.1095 (3) | 0.3491 (3) | 0.07657 (18) | 0.0496 (7) | |
C3 | 0.1942 (2) | 0.2065 (3) | 0.10839 (16) | 0.0418 (6) | |
C4 | 0.2786 (2) | 0.1698 (2) | 0.19758 (14) | 0.0350 (6) | |
C5 | 0.2717 (2) | 0.2799 (2) | 0.25620 (15) | 0.0363 (6) | |
C6 | 0.3461 (2) | 0.2622 (3) | 0.35166 (16) | 0.0411 (6) | |
C7 | 0.3326 (3) | 0.3721 (3) | 0.40339 (17) | 0.0465 (6) | |
C8 | 0.2433 (3) | 0.5075 (3) | 0.3643 (2) | 0.0540 (7) | |
C9 | 0.1694 (3) | 0.5289 (3) | 0.27344 (19) | 0.0513 (7) | |
C10 | 0.1807 (2) | 0.4186 (3) | 0.21786 (17) | 0.0434 (6) | |
C12 | 0.3155 (3) | −0.1663 (3) | 0.01273 (17) | 0.0513 (7) | |
C13 | 0.3027 (2) | −0.0621 (3) | 0.07486 (15) | 0.0430 (6) | |
C14 | 0.3902 (2) | −0.0895 (2) | 0.16263 (14) | 0.0357 (6) | |
C15 | 0.4954 (2) | −0.2263 (3) | 0.18527 (15) | 0.0405 (6) | |
C16 | 0.5958 (3) | −0.2757 (3) | 0.27198 (17) | 0.0464 (6) | |
C17 | 0.6915 (3) | −0.4072 (3) | 0.2883 (2) | 0.0566 (7) | |
C18 | 0.6924 (3) | −0.5007 (3) | 0.2208 (2) | 0.0602 (7) | |
C19 | 0.5986 (3) | −0.4588 (3) | 0.1371 (2) | 0.0576 (7) | |
C20 | 0.4999 (3) | −0.3225 (3) | 0.11785 (17) | 0.0470 (6) | |
C21 | 0.3724 (2) | 0.0153 (3) | 0.23726 (14) | 0.0340 (5) | |
C22 | 0.2731 (2) | −0.0632 (2) | 0.33866 (14) | 0.0330 (5) | |
C23 | 0.1035 (2) | −0.0844 (2) | 0.33240 (16) | 0.0387 (6) | |
C24 | 0.0069 (2) | −0.1530 (3) | 0.41923 (17) | 0.0460 (6) | |
C25 | 0.0769 (3) | −0.2016 (3) | 0.51382 (16) | 0.0473 (6) | |
C26 | 0.2439 (3) | −0.1804 (3) | 0.52083 (16) | 0.0451 (6) | |
C27 | 0.3421 (2) | −0.1109 (3) | 0.43413 (15) | 0.0391 (6) | |
C28 | 0.5488 (2) | 0.0458 (2) | 0.25191 (14) | 0.0364 (6) | |
H2 | 0.0555 | 0.3704 | 0.0151 | 0.06* | |
H6 | 0.4059 | 0.173 | 0.3797 | 0.049* | |
H7 | 0.3836 | 0.3567 | 0.4656 | 0.056* | |
H8 | 0.2345 | 0.582 | 0.4 | 0.065* | |
H9 | 0.1098 | 0.619 | 0.2474 | 0.062* | |
H12 | 0.2524 | −0.1441 | −0.0452 | 0.062* | |
H16 | 0.596 | −0.2166 | 0.3188 | 0.056* | |
H17 | 0.7572 | −0.4353 | 0.3451 | 0.068* | |
H18 | 0.7569 | −0.5909 | 0.2333 | 0.072* | |
H19 | 0.5994 | −0.5205 | 0.092 | 0.069* | |
H23 | 0.0551 | −0.052 | 0.2691 | 0.046* | |
H24 | −0.1065 | −0.1669 | 0.4142 | 0.055* | |
H25 | 0.0112 | −0.2482 | 0.5723 | 0.057* | |
H26 | 0.2916 | −0.2131 | 0.5843 | 0.054* | |
H27 | 0.4549 | −0.0961 | 0.4399 | 0.047* |
U11 | U22 | U33 | U12 | U13 | U23 | |
S | 0.0649 (4) | 0.0559 (6) | 0.0450 (4) | −0.0034 (3) | −0.0228 (3) | −0.0126 (3) |
N1 | 0.0529 (11) | 0.0431 (17) | 0.0558 (12) | 0.0025 (9) | −0.0129 (9) | −0.0025 (10) |
N2 | 0.0633 (12) | 0.0605 (18) | 0.0518 (12) | −0.0127 (11) | 0.0053 (9) | −0.0318 (10) |
N3 | 0.0435 (11) | 0.0613 (17) | 0.0542 (12) | −0.0066 (9) | −0.0081 (8) | −0.0198 (9) |
C2 | 0.0549 (13) | 0.046 (2) | 0.0452 (13) | 0.0004 (10) | −0.0161 (10) | −0.0025 (12) |
C3 | 0.0406 (11) | 0.0435 (17) | 0.0386 (11) | −0.0069 (9) | −0.0066 (8) | −0.0017 (10) |
C4 | 0.0344 (10) | 0.0339 (17) | 0.0364 (11) | −0.0056 (8) | −0.0018 (8) | −0.0068 (9) |
C5 | 0.0349 (10) | 0.0320 (17) | 0.0410 (11) | −0.0042 (8) | −0.0017 (8) | −0.0069 (9) |
C6 | 0.0420 (11) | 0.0379 (17) | 0.0434 (12) | −0.0025 (9) | −0.0043 (8) | −0.0096 (10) |
C7 | 0.0505 (12) | 0.045 (2) | 0.0486 (12) | −0.0049 (10) | −0.0038 (9) | −0.0189 (11) |
C8 | 0.0579 (14) | 0.0417 (19) | 0.0663 (15) | −0.0021 (11) | 0.0005 (11) | −0.0233 (12) |
C9 | 0.0535 (13) | 0.0318 (18) | 0.0666 (16) | 0.0015 (10) | −0.0019 (11) | −0.0108 (12) |
C10 | 0.0411 (11) | 0.0353 (18) | 0.0510 (13) | −0.0031 (9) | −0.0014 (9) | −0.0058 (11) |
C12 | 0.0576 (14) | 0.061 (2) | 0.0430 (12) | −0.0117 (12) | −0.0017 (10) | −0.0242 (12) |
C13 | 0.0451 (11) | 0.0487 (18) | 0.0374 (11) | −0.0110 (10) | −0.0019 (9) | −0.0122 (10) |
C14 | 0.0381 (10) | 0.0368 (17) | 0.0351 (11) | −0.0083 (9) | 0.0011 (8) | −0.0134 (9) |
C15 | 0.0420 (11) | 0.0396 (17) | 0.0420 (11) | −0.0064 (9) | 0.0051 (9) | −0.0153 (10) |
C16 | 0.0486 (12) | 0.0434 (18) | 0.0487 (13) | 0.0026 (10) | −0.0029 (9) | −0.0168 (10) |
C17 | 0.0538 (13) | 0.050 (2) | 0.0627 (15) | 0.0060 (11) | −0.0016 (10) | −0.0128 (12) |
C18 | 0.0602 (14) | 0.043 (2) | 0.0765 (18) | 0.0049 (11) | 0.0087 (12) | −0.0215 (13) |
C19 | 0.0639 (15) | 0.046 (2) | 0.0677 (16) | −0.0077 (12) | 0.0147 (12) | −0.0295 (12) |
C20 | 0.0500 (12) | 0.0474 (19) | 0.0483 (13) | −0.0105 (10) | 0.0096 (10) | −0.0229 (11) |
C21 | 0.0348 (10) | 0.0346 (15) | 0.0341 (10) | −0.0028 (8) | −0.0067 (7) | −0.0097 (9) |
C22 | 0.0399 (10) | 0.0266 (14) | 0.0344 (10) | 0.0011 (8) | −0.0037 (8) | −0.0118 (8) |
C23 | 0.0419 (11) | 0.0343 (16) | 0.0412 (11) | −0.0010 (9) | −0.0070 (8) | −0.0104 (9) |
C24 | 0.0386 (11) | 0.0444 (18) | 0.0550 (14) | −0.0044 (9) | −0.0002 (9) | −0.0127 (11) |
C25 | 0.0551 (13) | 0.0410 (17) | 0.0438 (12) | −0.0040 (10) | 0.0082 (9) | −0.0108 (10) |
C26 | 0.0585 (13) | 0.0429 (17) | 0.0337 (11) | −0.0012 (10) | −0.0049 (9) | −0.0096 (9) |
C27 | 0.0427 (11) | 0.0389 (16) | 0.0377 (11) | −0.0020 (9) | −0.0053 (8) | −0.0126 (9) |
C28 | 0.0418 (12) | 0.0356 (16) | 0.0328 (11) | −0.0006 (9) | −0.0039 (8) | −0.0106 (9) |
S—C3 | 1.731 (2) | C7—H7 | 0.93 |
S—C13 | 1.740 (2) | C6—C5 | 1.421 (3) |
N1—C2 | 1.296 (3) | C6—H6 | 0.93 |
N1—C10 | 1.369 (3) | C13—C12 | 1.417 (3) |
N2—C12 | 1.298 (3) | C14—C15 | 1.440 (3) |
N2—C20 | 1.379 (3) | C15—C20 | 1.417 (3) |
N3—C28 | 1.140 (3) | C15—C16 | 1.423 (3) |
C3—C4 | 1.374 (3) | C20—C19 | 1.410 (4) |
C4—C21 | 1.553 (3) | C12—H12 | 0.93 |
C13—C14 | 1.375 (3) | C19—C18 | 1.356 (4) |
C14—C21 | 1.549 (3) | C19—H19 | 0.93 |
C21—C22 | 1.549 (3) | C18—C17 | 1.400 (4) |
C21—C28 | 1.492 (3) | C18—H18 | 0.93 |
C22—C23 | 1.389 (3) | C17—C16 | 1.362 (4) |
C22—C27 | 1.388 (3) | C17—H17 | 0.93 |
C4—C5 | 1.433 (3) | C16—H16 | 0.93 |
C3—C2 | 1.419 (3) | C27—C26 | 1.383 (3) |
C2—H2 | 0.93 | C27—H27 | 0.93 |
C10—C9 | 1.403 (4) | C26—C25 | 1.371 (3) |
C10—C5 | 1.425 (3) | C26—H26 | 0.93 |
C9—C8 | 1.358 (4) | C25—C24 | 1.381 (3) |
C9—H9 | 0.93 | C25—H25 | 0.93 |
C8—C7 | 1.397 (4) | C24—C23 | 1.376 (3) |
C8—H8 | 0.93 | C24—H24 | 0.93 |
C7—C6 | 1.363 (3) | C23—H23 | 0.93 |
C28—C21—C22 | 113.87 (15) | C15—C14—C21 | 120.77 (17) |
C28—C21—C14 | 106.51 (16) | C20—C15—C16 | 116.0 (2) |
C22—C21—C14 | 107.44 (16) | C20—C15—C14 | 118.68 (19) |
C28—C21—C4 | 105.14 (17) | C16—C15—C14 | 125.3 (2) |
C22—C21—C4 | 107.73 (15) | N2—C20—C19 | 116.1 (2) |
C3—S—C13 | 102.44 (11) | N2—C20—C15 | 122.8 (2) |
C3—C4—C21 | 122.8 (2) | C19—C20—C15 | 121.1 (2) |
C4—C3—S | 127.34 (19) | C12—N2—C20 | 117.0 (2) |
C4—C21—C14 | 116.39 (16) | N2—C12—C13 | 124.7 (2) |
C13—C14—C21 | 122.84 (19) | N2—C12—H12 | 117.7 |
C14—C13—S | 126.99 (19) | C13—C12—H12 | 117.7 |
N3—C28—C21 | 176.01 (19) | C18—C19—C20 | 120.6 (3) |
C3—C4—C5 | 116.8 (2) | C18—C19—H19 | 119.7 |
C5—C4—C21 | 120.39 (17) | C20—C19—H19 | 119.7 |
C4—C3—C2 | 120.2 (2) | C19—C18—C17 | 119.6 (2) |
C2—C3—S | 112.44 (16) | C19—C18—H18 | 120.2 |
N1—C2—C3 | 124.6 (2) | C17—C18—H18 | 120.2 |
N1—C2—H2 | 117.7 | C16—C17—C18 | 121.0 (2) |
C3—C2—H2 | 117.7 | C16—C17—H17 | 119.5 |
C2—N1—C10 | 117.2 (2) | C18—C17—H17 | 119.5 |
N1—C10—C9 | 117.0 (2) | C17—C16—C15 | 121.7 (2) |
N1—C10—C5 | 122.9 (2) | C17—C16—H16 | 119.1 |
C9—C10—C5 | 120.1 (2) | C15—C16—H16 | 119.1 |
C8—C9—C10 | 121.7 (2) | C27—C22—C23 | 118.77 (17) |
C8—C9—H9 | 119.1 | C27—C22—C21 | 124.22 (16) |
C10—C9—H9 | 119.1 | C23—C22—C21 | 117.00 (16) |
C9—C8—C7 | 119.1 (3) | C26—C27—C22 | 120.34 (19) |
C9—C8—H8 | 120.4 | C26—C27—H27 | 119.8 |
C7—C8—H8 | 120.4 | C22—C27—H27 | 119.8 |
C6—C7—C8 | 120.9 (2) | C25—C26—C27 | 120.49 (19) |
C6—C7—H7 | 119.6 | C25—C26—H26 | 119.8 |
C8—C7—H7 | 119.6 | C27—C26—H26 | 119.8 |
C7—C6—C5 | 122.0 (2) | C26—C25—C24 | 119.47 (19) |
C7—C6—H6 | 119 | C26—C25—H25 | 120.3 |
C5—C6—H6 | 119 | C24—C25—H25 | 120.3 |
C6—C5—C10 | 116.2 (2) | C23—C24—C25 | 120.53 (19) |
C6—C5—C4 | 125.47 (19) | C23—C24—H24 | 119.7 |
C10—C5—C4 | 118.30 (19) | C25—C24—H24 | 119.7 |
C14—C13—C12 | 120.5 (2) | C24—C23—C22 | 120.39 (18) |
C12—C13—S | 112.47 (17) | C24—C23—H23 | 119.8 |
C13—C14—C15 | 116.3 (2) | C22—C23—H23 | 119.8 |
C4—C21—C22—C27 | −120.2 (2) | C2—C3—S—C13 | 174.22 (14) |
C22—C21—C4—C5 | 66.0 (2) | C3—S—C13—C14 | 4.4 (2) |
C22—C21—C4—C3 | −111.66 (19) | C3—S—C13—C12 | −174.89 (14) |
C28—C21—C4—C5 | −55.8 (2) | C12—C13—C14—C15 | 1.1 (3) |
C28—C21—C4—C3 | 126.56 (19) | S—C13—C14—C15 | −178.16 (14) |
C4—C21—C22—C23 | 58.8 (2) | C12—C13—C14—C21 | −176.02 (17) |
C22—C21—C14—C15 | −68.1 (2) | S—C13—C14—C21 | 4.7 (3) |
C22—C21—C14—C13 | 108.9 (2) | C13—C14—C15—C20 | −0.8 (3) |
C28—C21—C14—C15 | 54.3 (2) | C21—C14—C15—C20 | 176.38 (16) |
C28—C21—C14—C13 | −128.71 (19) | C13—C14—C15—C16 | −179.92 (18) |
C14—C21—C4—C3 | 9.0 (3) | C21—C14—C15—C16 | −2.7 (3) |
C14—C21—C4—C5 | −173.36 (15) | C16—C15—C20—N2 | 179.72 (19) |
C4—C21—C14—C13 | −11.9 (3) | C14—C15—C20—N2 | 0.5 (3) |
C4—C21—C14—C15 | 171.09 (16) | C16—C15—C20—C19 | 0.1 (3) |
C5—C4—C3—C2 | 1.7 (3) | C14—C15—C20—C19 | −179.08 (18) |
C21—C4—C3—C2 | 179.40 (17) | C19—C20—N2—C12 | 179.12 (19) |
C5—C4—C3—S | −176.55 (14) | C15—C20—N2—C12 | −0.5 (3) |
C21—C4—C3—S | 1.2 (3) | C20—N2—C12—C13 | 0.8 (3) |
C4—C3—C2—N1 | −1.1 (3) | C14—C13—C12—N2 | −1.2 (3) |
S—C3—C2—N1 | 177.35 (18) | S—C13—C12—N2 | 178.17 (19) |
C3—C2—N1—C10 | −0.5 (3) | N2—C20—C19—C18 | −179.9 (2) |
C2—N1—C10—C9 | −178.75 (19) | C15—C20—C19—C18 | −0.2 (3) |
C2—N1—C10—C5 | 1.5 (3) | C20—C19—C18—C17 | −0.3 (4) |
N1—C10—C9—C8 | −179.9 (2) | C19—C18—C17—C16 | 1.0 (4) |
C5—C10—C9—C8 | −0.1 (3) | C18—C17—C16—C15 | −1.1 (3) |
C10—C9—C8—C7 | −0.1 (3) | C20—C15—C16—C17 | 0.6 (3) |
C9—C8—C7—C6 | 0.0 (3) | C14—C15—C16—C17 | 179.70 (19) |
C8—C7—C6—C5 | 0.3 (3) | C28—C21—C22—C27 | −4.0 (3) |
C7—C6—C5—C10 | −0.5 (3) | C14—C21—C22—C27 | 113.7 (2) |
C7—C6—C5—C4 | −179.39 (18) | C28—C21—C22—C23 | 174.98 (19) |
N1—C10—C5—C6 | −179.88 (17) | C14—C21—C22—C23 | −67.3 (2) |
C9—C10—C5—C6 | 0.4 (3) | C23—C22—C27—C26 | 1.1 (3) |
N1—C10—C5—C4 | −0.9 (3) | C21—C22—C27—C26 | −179.9 (2) |
C9—C10—C5—C4 | 179.38 (17) | C22—C27—C26—C25 | −0.8 (3) |
C3—C4—C5—C6 | 178.14 (17) | C27—C26—C25—C24 | 0.1 (4) |
C21—C4—C5—C6 | 0.4 (3) | C26—C25—C24—C23 | 0.2 (4) |
C3—C4—C5—C10 | −0.7 (3) | C25—C24—C23—C22 | 0.1 (4) |
C21—C4—C5—C10 | −178.51 (15) | C27—C22—C23—C24 | −0.8 (3) |
C4—C3—S—C13 | −7.4 (2) | C21—C22—C23—C24 | −179.8 (2) |
Experimental details
Crystal data | |
Chemical formula | C26H15N3S |
Mr | 401.47 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 293 |
a, b, c (Å) | 7.9135 (1), 9.3622 (4), 13.3280 (5) |
α, β, γ (°) | 75.724 (2), 84.369 (1), 84.415 (2) |
V (Å3) | 949.59 (6) |
Z | 2 |
Radiation type | Synchrotron, λ = 0.996 Å |
µ (mm−1) | 0.42 |
Crystal size (mm) | 0.80 × 0.01 × 0.01 |
Data collection | |
Diffractometer | MARCCD 165 detector diffractometer |
Absorption correction | – |
No. of measured, independent and observed [I > 2σ(I)] reflections | 4040, 2099, 1983 |
Rint | 0.048 |
θmax (°) | 32.9 |
(sin θ/λ)max (Å−1) | 0.545 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.051, 0.137, 1.06 |
No. of reflections | 2099 |
No. of parameters | 271 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.17, −0.20 |
Computer programs: Please provide missing information and reference, TWINSOLVE (Rigaku/MSC & Prekat, 2002), SIR97 (Altomare et al., 1999) in WinGX (Farrugia, 1999), SHELXL97 (Sheldrick, 1997) in WinGX (Farrugia, 1999).
S—C3 | 1.731 (2) | C4—C21 | 1.553 (3) |
S—C13 | 1.740 (2) | C13—C14 | 1.375 (3) |
N1—C2 | 1.296 (3) | C14—C21 | 1.549 (3) |
N1—C10 | 1.369 (3) | C21—C22 | 1.549 (3) |
N2—C12 | 1.298 (3) | C21—C28 | 1.492 (3) |
N2—C20 | 1.379 (3) | C22—C23 | 1.389 (3) |
N3—C28 | 1.140 (3) | C22—C27 | 1.388 (3) |
C3—C4 | 1.374 (3) | ||
C3—S—C13 | 102.44 (11) | C4—C21—C14 | 116.39 (16) |
C3—C4—C21 | 122.8 (2) | C13—C14—C21 | 122.84 (19) |
C4—C3—S | 127.34 (19) | C14—C13—S | 126.99 (19) |
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The incorporation of polarizable heteroatoms within the donor framework is regarded as an important way of designing new polyheterocyclic donor molecules in the search for organic materials with interesting electronic, optoelectronic and magnetic properties (Marti et al., 1994). Very few papers have appeared in the literature to date on the synthesis and properties of fused pentacyclic heterocycles. Some pentacyclic heterocycles, such as azathiapentaphenes and diazadithiapentacenes, show photoelectric properties (Yoshida et al., 1994), and diazapentacenes show photodynamic therapeutic activity against cancer cell lines, bacteria and viruses (Gloster et al., 1999). Very recent studies demonstrated significant electronic conductivity enhancement of disubstituted homopentacenes (Anthony et al., 2001). On the other hand, quinolines condensed with some heterocycles have become important compounds because of their affinity to the benzodiazepine receptors (Moreau et al., 1988; Anzini et al., 1990) and their cytotoxic activity (Ma et al., 1994, 1999; Tasdemir et al., 2001).
The purpose of this study is to determine the structure of the title diazathiapentaphene, (I), and to compare it with the structures of related multicyclic heterocycles, (II)–(V), also shown in the scheme.
The molecular configuration and atom labelling are shown in Fig. 1. In contrast with the isomeric thiopyranodiquinoline, (II) (Nowak et al., 2002), and the pentaphenes, (III) (Pluta & Suwi\`nska, 2000) and (IV) (Besnard et al., 2004), the overall pentacyclic ring system in (I) is close to planar. It is only slightly folded along the S···C21 axis, as well as along the C3—C4 and C13—C14 axes between the thiopyran and quinoline rings. The butterfly angle between the two quinoline planes is very small in comparison with the pentacyclic heterocycles (II)–(IV): 6.75 (7)° versus 44.73 (3), 150.2 (1) and 20.5 (1)°, respectively.
The central thiopyran ring has a flattened boat conformation, with atoms S and C21 slightly displaced out of the basal plane [C3/C4/C13/C14], by −0.092 (5) and −0.122 (5) Å, respectively, compared with 0.580 (3) and 0.563 (3) Å, respectively, in thiopyranodiquinoline (II). The dihedral angle between the planes determined by the atoms of the two halves of the thiopyran ring (i.e. S/C3/C4/C21 and S/C13/C14/C21) is 9.32 (14)°. It is worth noting that the quinoline ring system is not quite planar, the dihedral angles between the pyridine and benzene rings being 0.91 (11) and 0.41 (11)°, respectively.
Bond lengths and bond angles are given in Table 1. Whereas the S—C, N—C and C—C bond lengths are similar to those found in the isomeric thiopyranodiquinoline, (II), the bond angles differ significantly. The C3—S—C13 and C4—C21—C14 angles are quite large compared with the corresponding angles in isomer (II), at 98.88 (10) and 110.53 (16)°, respectively. Bond angles C4—C3—S, C14—C13—S, C3—C4—C21 and C13—C14—C21 differ strongly from the unstrained sp2 and sp3 angles (Table 1). The increase of these bond angles is related to the requirements of the flattened boat conformation of the thiopyran ring.
The most intriguing molecular features of (I) are the location and orientation of the substituents. As also observed for the phenylthiopyranodiarenes, (II) and (V) (Quintela et al., 2000), the phenyl substituent is in a quasi-axial conformation with respect to the thiopyran ring, with torsion angles C22—C21—C4—C3 − 111.66 (19), C22—C21—C4—C5 66.0 (2), C22—C21—C14—C13 108.9 (2) and C22—C21—C14—C15 − 68.1 (2)°.
The S···C21—C22 angle is 116.8 (2)°, which is larger than in compounds (II) and (V). Whereas the plane of the phenyl group in isomer (II) is nearly perpendicular to the plane bisecting the dihedral angle of the thiopyranodiarene ring system, the phenyl group plane in (I) is nearly coplanar with the bisecting plane. The torsion angles C23—C22—C21—C4 and C27—C22—C21—C4 are 58.8 (2) and −120.2 (2)°, respectively, and the dihedral angle between the phenyl group plane and the C3/C4/C13/C14 plane is 88.91 (17)°.
The cyano group is in a quasi-equatorial position with respect to the central thiopyran ring, with torsion angles C28—C21—C4—C3 126.56 (19), C28—C21—C4—C5 − 55.8 (2), C28—C21—C14—C13 − 128.71 (19) and C28—C21—C14—C15 54.3 (2)°, and an S···C21—C28 angle of 129.30 (2)°.
There are very close contacts between quinoline atoms H6 and H16 and the substituent C atoms. The non-bonded distances H6···C27 2.663 (6), H16···C27 2.671 (6), H6···C28 2.444 (6) and H16···C28 2.403 (6) Å are each shorter than the sum of the van der Waals radii (2.90 Å; Bondi, 1964). These steric interactions cause deshielding of the H6/H16 and H23/H27 atoms in the 1H NMR spectrum and were confirmed using the nuclear Overhauser enhancement effect (Pluta, 1994).
In each unit cell, there are two molecules related by inversion symmetry. The main pentacyclic rings of the molecules are parallel to each other, as shown in Fig. 2a. This parallel alignment does not, however, produce significant overlap between the pentacyclic ring systems. since they are shifted from each other in order to accomodate the bulky subtituents. The small overlap occurring between the C5–C10 ring of one molecule and the C15–C20 ring of another is shown in Fig. 2b. The distance between the two planes that partly overlap is 3.36 (1) Å. Despite the π–π interactions, linear hydrogen bonding involving atoms C2, H2 and N1 can occur, as indicated by the distance between H2 and N1, which is is 2.53 (1) Å, and the H2···C2—N1 angle, which is 151.7 (1)°.