Supporting information
Crystallographic Information File (CIF) https://doi.org/10.1107/S0108270100007320/sk1393sup1.cif | |
Structure factor file (CIF format) https://doi.org/10.1107/S0108270100007320/sk1393Isup2.hkl |
CCDC reference: 150317
The title compound was obtained from the reaction of trans-[PdCl2(PPh3)2] and 2-O2NC6H4SSnPh3 in acetone solution. The compound was purified by column chromatography on silica using CHCl3 as eluent. The compound obtained decomposed on heating, before melting at 478 K. Crystals suitable for single-crystal X-ray diffraction were obtained from an acetone solution.
Compound (I) crystallized in the monoclinic system as a monoacetone solvate; space group P21/n was assumed from the systematic absences. H atoms were treated as riding atoms with a C—H distance of 0.95 Å for aromatic H atoms and 0.98 Å for methyl H atoms. The acetone molecule was modelled with six-half occupancy H atoms in the methyl group defined by C7; the O and C atoms of the acetone molecule all had large displacement parameters. Examination of the refined structure with PLATON (Spek, 2000) showed there were no solvent-accessible voids in the structure, but that there were four symmetry-related voids, each with a volume of ca 11 Å3, in the vicinity of the four solvent molecules in the unit cell. These may be associated with the large displacement parameters of the solvent molecule. The sites of maximum and minimum residual density are adjacent to the acetone and Pd atom, respectively.
Data collection: CAD-4-PC Software (Enraf-Nonius, 1992) and FAST/MADNES (Pflugrath & Messerschmidt, 1989); cell refinement: CAD-4-PC Software and FAST/MADNES; data reduction: CAD-4-PC Software and FAST/MADNES; program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: NRCVAX96 (Gabe et al., 1989) and SHELXL97 (Sheldrick, 1997); molecular graphics: NRCVAX96, ORTEPII (Johnson, 1976) and PLATON (Spek, 2000); software used to prepare material for publication: NRCVAX96, SHELXL97 and WORDPERFECT macro PREP8 (Ferguson, 1998).
Fig. 1. The asymmetric unit of (I)·(CH3)2CO showing the atom-labelling scheme. Displacement ellipsoids are drawn at the 30% probability level. H atoms bonded to C7 have site-occupation factor 0.5. |
[PdCl(C6H4NO2S)(C18H15P)2]·C3H6O | F(000) = 1800 |
Mr = 878.63 | Dx = 1.410 Mg m−3 |
Monoclinic, P21/n | Mo Kα radiation, λ = 0.71073 Å |
a = 18.292 (7) Å | Cell parameters from 11315 reflections |
b = 10.969 (3) Å | θ = 1.3–30.5° |
c = 21.363 (8) Å | µ = 0.68 mm−1 |
β = 105.0928 (17)° | T = 150 K |
V = 4139 (2) Å3 | Block, orange |
Z = 4 | 0.30 × 0.10 × 0.05 mm |
Enraf-Nonius diffractometer with FAST area-detector | 11315 independent reflections |
Radiation source: fine-focus sealed X-ray tube | 5642 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.095 |
ϕ and ω scans with κ offsets | θmax = 30.1°, θmin = 1.3° |
Absorption correction: multi-scan (FAST/MADNES; Pflugrath & Messerschmidt, 1989) | h = −25→25 |
Tmin = 0.822, Tmax = 0.967 | k = −14→15 |
49325 measured reflections | l = −29→30 |
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)] = 0.053 | H-atom parameters constrained |
wR(F2) = 0.147 | w = 1/[σ2(Fo2) + (0.0686P)2] where P = (Fo2 + 2Fc2)/3 |
S = 0.94 | (Δ/σ)max < 0.001 |
11315 reflections | Δρmax = 1.54 e Å−3 |
489 parameters | Δρmin = −1.10 e Å−3 |
0 restraints | Extinction correction: SHELXL97, Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4 |
Primary atom site location: structure-invariant direct methods | Extinction coefficient: 0.0026 (2) |
[PdCl(C6H4NO2S)(C18H15P)2]·C3H6O | V = 4139 (2) Å3 |
Mr = 878.63 | Z = 4 |
Monoclinic, P21/n | Mo Kα radiation |
a = 18.292 (7) Å | µ = 0.68 mm−1 |
b = 10.969 (3) Å | T = 150 K |
c = 21.363 (8) Å | 0.30 × 0.10 × 0.05 mm |
β = 105.0928 (17)° |
Enraf-Nonius diffractometer with FAST area-detector | 11315 independent reflections |
Absorption correction: multi-scan (FAST/MADNES; Pflugrath & Messerschmidt, 1989) | 5642 reflections with I > 2σ(I) |
Tmin = 0.822, Tmax = 0.967 | Rint = 0.095 |
49325 measured reflections |
R[F2 > 2σ(F2)] = 0.053 | 0 restraints |
wR(F2) = 0.147 | H-atom parameters constrained |
S = 0.94 | Δρmax = 1.54 e Å−3 |
11315 reflections | Δρmin = −1.10 e Å−3 |
489 parameters |
x | y | z | Uiso*/Ueq | Occ. (<1) | |
Pd1 | 0.412423 (15) | −0.00059 (2) | 0.213104 (13) | 0.02071 (10) | |
Cl1 | 0.32845 (5) | −0.15334 (8) | 0.22875 (5) | 0.0284 (2) | |
S1 | 0.50238 (5) | 0.13304 (8) | 0.19609 (5) | 0.0278 (2) | |
P1 | 0.46940 (5) | 0.00014 (8) | 0.32452 (4) | 0.0210 (2) | |
P2 | 0.34622 (5) | 0.00591 (8) | 0.10405 (4) | 0.0199 (2) | |
O1 | 0.61027 (18) | 0.2968 (3) | 0.18010 (17) | 0.0551 (9) | |
O2 | 0.5886 (2) | 0.4828 (3) | 0.14727 (19) | 0.0679 (11) | |
N1 | 0.5707 (2) | 0.3889 (3) | 0.17161 (18) | 0.0429 (9) | |
C1 | 0.4673 (2) | 0.2782 (3) | 0.20464 (18) | 0.0285 (9) | |
C2 | 0.3996 (2) | 0.2942 (4) | 0.22387 (19) | 0.0318 (9) | |
C3 | 0.3684 (2) | 0.4059 (4) | 0.2299 (2) | 0.0409 (11) | |
C4 | 0.4040 (3) | 0.5111 (4) | 0.2165 (2) | 0.0435 (12) | |
C5 | 0.4686 (3) | 0.5008 (4) | 0.1969 (2) | 0.0394 (11) | |
C6 | 0.5002 (2) | 0.3880 (4) | 0.19153 (19) | 0.0318 (9) | |
C111 | 0.5321 (2) | 0.1258 (3) | 0.35935 (18) | 0.0263 (9) | |
C112 | 0.6042 (2) | 0.1299 (4) | 0.34794 (19) | 0.0346 (10) | |
C113 | 0.6536 (2) | 0.2236 (4) | 0.3721 (2) | 0.0410 (11) | |
C114 | 0.6324 (2) | 0.3149 (4) | 0.4077 (2) | 0.0447 (12) | |
C115 | 0.5618 (3) | 0.3123 (4) | 0.4195 (2) | 0.0489 (13) | |
C116 | 0.5117 (2) | 0.2175 (3) | 0.3955 (2) | 0.0357 (10) | |
C121 | 0.3976 (2) | 0.0008 (3) | 0.37015 (18) | 0.0256 (8) | |
C122 | 0.4003 (2) | −0.0771 (3) | 0.42209 (19) | 0.0308 (9) | |
C123 | 0.3440 (2) | −0.0705 (4) | 0.4550 (2) | 0.0381 (11) | |
C124 | 0.2863 (2) | 0.0132 (4) | 0.4372 (2) | 0.0389 (11) | |
C125 | 0.2834 (2) | 0.0907 (4) | 0.3855 (2) | 0.0404 (11) | |
C126 | 0.3382 (2) | 0.0832 (4) | 0.3521 (2) | 0.0333 (10) | |
C131 | 0.5289 (2) | −0.1325 (3) | 0.35103 (18) | 0.0256 (8) | |
C132 | 0.5247 (2) | −0.2343 (4) | 0.3114 (2) | 0.0341 (10) | |
C133 | 0.5743 (2) | −0.3318 (4) | 0.3316 (2) | 0.0443 (12) | |
C134 | 0.6273 (2) | −0.3276 (4) | 0.3895 (2) | 0.0439 (12) | |
C135 | 0.6316 (3) | −0.2283 (4) | 0.4299 (2) | 0.0464 (12) | |
C136 | 0.5823 (2) | −0.1322 (4) | 0.4107 (2) | 0.0391 (11) | |
C211 | 0.2452 (2) | 0.0239 (3) | 0.09887 (18) | 0.0231 (8) | |
C212 | 0.1911 (2) | −0.0528 (4) | 0.0615 (2) | 0.0315 (9) | |
C213 | 0.1155 (2) | −0.0394 (4) | 0.0604 (2) | 0.0397 (11) | |
C214 | 0.0928 (2) | 0.0497 (4) | 0.0965 (2) | 0.0376 (10) | |
C215 | 0.1468 (2) | 0.1265 (4) | 0.1347 (2) | 0.0343 (10) | |
C216 | 0.2220 (2) | 0.1133 (3) | 0.13582 (19) | 0.0320 (9) | |
C221 | 0.3684 (2) | 0.1270 (3) | 0.05327 (17) | 0.0234 (8) | |
C222 | 0.4364 (2) | 0.1183 (3) | 0.03580 (19) | 0.0309 (9) | |
C223 | 0.4562 (2) | 0.2047 (4) | −0.0036 (2) | 0.0401 (11) | |
C224 | 0.4091 (3) | 0.3025 (4) | −0.0246 (2) | 0.0457 (12) | |
C225 | 0.3421 (3) | 0.3147 (4) | −0.0074 (2) | 0.0434 (11) | |
C226 | 0.3222 (2) | 0.2264 (3) | 0.0322 (2) | 0.0351 (10) | |
C231 | 0.3535 (2) | −0.1287 (3) | 0.05621 (18) | 0.0248 (8) | |
C232 | 0.3819 (2) | −0.2382 (3) | 0.08609 (19) | 0.0303 (9) | |
C233 | 0.3859 (2) | −0.3413 (3) | 0.0485 (2) | 0.0342 (10) | |
C234 | 0.3618 (2) | −0.3344 (4) | −0.0183 (2) | 0.0382 (11) | |
C235 | 0.3344 (2) | −0.2258 (4) | −0.0480 (2) | 0.0357 (10) | |
C236 | 0.3303 (2) | −0.1239 (3) | −0.01082 (19) | 0.0310 (9) | |
O3 | 0.2651 (3) | 0.0434 (4) | −0.1423 (2) | 0.0982 (15) | |
C7 | 0.3458 (5) | 0.1230 (7) | −0.2021 (4) | 0.146 (4) | |
C8 | 0.2880 (4) | 0.0371 (6) | −0.1895 (3) | 0.0751 (19) | |
C9 | 0.2630 (4) | −0.0568 (7) | −0.2386 (3) | 0.106 (2) | |
H2 | 0.3742 | 0.2236 | 0.2331 | 0.038* | |
H3 | 0.3228 | 0.4114 | 0.2432 | 0.049* | |
H4 | 0.3834 | 0.5891 | 0.2210 | 0.052* | |
H5 | 0.4925 | 0.5723 | 0.1867 | 0.047* | |
H112 | 0.6191 | 0.0671 | 0.3232 | 0.042* | |
H113 | 0.7024 | 0.2250 | 0.3642 | 0.049* | |
H114 | 0.6663 | 0.3799 | 0.4242 | 0.054* | |
H115 | 0.5473 | 0.3755 | 0.4442 | 0.059* | |
H116 | 0.4633 | 0.2161 | 0.4041 | 0.043* | |
H122 | 0.4403 | −0.1344 | 0.4350 | 0.037* | |
H123 | 0.3455 | −0.1243 | 0.4901 | 0.046* | |
H124 | 0.2485 | 0.0177 | 0.4603 | 0.047* | |
H125 | 0.2438 | 0.1489 | 0.3732 | 0.048* | |
H126 | 0.3353 | 0.1353 | 0.3160 | 0.040* | |
H132 | 0.4882 | −0.2374 | 0.2707 | 0.041* | |
H133 | 0.5709 | −0.4016 | 0.3047 | 0.053* | |
H134 | 0.6616 | −0.3936 | 0.4023 | 0.053* | |
H135 | 0.6682 | −0.2261 | 0.4706 | 0.056* | |
H136 | 0.5849 | −0.0643 | 0.4388 | 0.047* | |
H212 | 0.2059 | −0.1151 | 0.0364 | 0.038* | |
H213 | 0.0788 | −0.0923 | 0.0343 | 0.048* | |
H214 | 0.0409 | 0.0585 | 0.0954 | 0.045* | |
H215 | 0.1318 | 0.1882 | 0.1600 | 0.041* | |
H216 | 0.2586 | 0.1659 | 0.1622 | 0.038* | |
H222 | 0.4696 | 0.0520 | 0.0513 | 0.037* | |
H223 | 0.5021 | 0.1968 | −0.0162 | 0.048* | |
H224 | 0.4231 | 0.3624 | −0.0515 | 0.055* | |
H225 | 0.3098 | 0.3823 | −0.0222 | 0.052* | |
H226 | 0.2764 | 0.2347 | 0.0448 | 0.042* | |
H232 | 0.3986 | −0.2428 | 0.1320 | 0.036* | |
H233 | 0.4052 | −0.4158 | 0.0689 | 0.041* | |
H234 | 0.3641 | −0.4046 | −0.0438 | 0.046* | |
H235 | 0.3183 | −0.2211 | −0.0940 | 0.043* | |
H236 | 0.3114 | −0.0496 | −0.0316 | 0.037* | |
H7A | 0.3593 | 0.1827 | −0.1669 | 0.219* | 0.50 |
H7B | 0.3250 | 0.1653 | −0.2433 | 0.219* | 0.50 |
H7C | 0.3911 | 0.0772 | −0.2044 | 0.219* | 0.50 |
H7D | 0.3576 | 0.1008 | −0.2428 | 0.219* | 0.50 |
H7E | 0.3919 | 0.1182 | −0.1664 | 0.219* | 0.50 |
H7F | 0.3259 | 0.2063 | −0.2053 | 0.219* | 0.50 |
H9A | 0.2193 | −0.0999 | −0.2306 | 0.159* | |
H9B | 0.3043 | −0.1147 | −0.2367 | 0.159* | |
H9C | 0.2484 | −0.0189 | −0.2816 | 0.159* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Pd1 | 0.02289 (16) | 0.01881 (15) | 0.01983 (16) | −0.00052 (12) | 0.00448 (11) | 0.00098 (12) |
Cl1 | 0.0317 (5) | 0.0254 (5) | 0.0278 (5) | −0.0046 (4) | 0.0073 (4) | 0.0022 (4) |
S1 | 0.0273 (5) | 0.0278 (5) | 0.0288 (6) | −0.0031 (4) | 0.0079 (4) | −0.0001 (4) |
P1 | 0.0225 (5) | 0.0201 (5) | 0.0197 (5) | 0.0007 (4) | 0.0042 (4) | 0.0006 (4) |
P2 | 0.0203 (5) | 0.0198 (5) | 0.0195 (5) | −0.0014 (4) | 0.0048 (4) | 0.0006 (4) |
O1 | 0.052 (2) | 0.047 (2) | 0.078 (3) | −0.0015 (17) | 0.038 (2) | 0.0035 (18) |
O2 | 0.081 (3) | 0.046 (2) | 0.091 (3) | −0.0153 (18) | 0.048 (2) | 0.0146 (19) |
N1 | 0.050 (2) | 0.040 (2) | 0.042 (2) | −0.010 (2) | 0.020 (2) | −0.0010 (18) |
C1 | 0.031 (2) | 0.032 (2) | 0.020 (2) | −0.0024 (18) | 0.0031 (17) | −0.0002 (16) |
C2 | 0.032 (2) | 0.028 (2) | 0.035 (2) | −0.0011 (18) | 0.0068 (19) | 0.0010 (18) |
C3 | 0.037 (2) | 0.037 (3) | 0.047 (3) | 0.003 (2) | 0.009 (2) | −0.001 (2) |
C4 | 0.056 (3) | 0.026 (2) | 0.047 (3) | 0.003 (2) | 0.012 (2) | 0.0005 (19) |
C5 | 0.054 (3) | 0.026 (2) | 0.037 (3) | −0.006 (2) | 0.009 (2) | 0.0041 (19) |
C6 | 0.038 (2) | 0.029 (2) | 0.029 (2) | −0.0065 (19) | 0.0096 (19) | −0.0015 (17) |
C111 | 0.032 (2) | 0.0209 (19) | 0.023 (2) | −0.0022 (17) | 0.0008 (17) | 0.0038 (16) |
C112 | 0.035 (2) | 0.040 (2) | 0.027 (2) | −0.006 (2) | 0.0056 (19) | −0.0053 (19) |
C113 | 0.034 (2) | 0.044 (3) | 0.045 (3) | −0.009 (2) | 0.009 (2) | 0.000 (2) |
C114 | 0.037 (3) | 0.028 (2) | 0.060 (3) | −0.009 (2) | −0.002 (2) | 0.000 (2) |
C115 | 0.047 (3) | 0.027 (2) | 0.070 (4) | 0.003 (2) | 0.009 (3) | −0.016 (2) |
C116 | 0.028 (2) | 0.031 (2) | 0.044 (3) | 0.0015 (18) | 0.002 (2) | −0.008 (2) |
C121 | 0.028 (2) | 0.0252 (19) | 0.023 (2) | −0.0044 (18) | 0.0067 (16) | −0.0055 (17) |
C122 | 0.037 (2) | 0.025 (2) | 0.030 (2) | 0.0011 (18) | 0.0073 (19) | 0.0004 (17) |
C123 | 0.048 (3) | 0.039 (3) | 0.031 (3) | −0.006 (2) | 0.018 (2) | 0.0029 (19) |
C124 | 0.035 (2) | 0.050 (3) | 0.037 (3) | −0.006 (2) | 0.019 (2) | −0.005 (2) |
C125 | 0.036 (2) | 0.046 (3) | 0.040 (3) | 0.004 (2) | 0.011 (2) | −0.001 (2) |
C126 | 0.032 (2) | 0.038 (2) | 0.029 (2) | 0.004 (2) | 0.0076 (19) | 0.0048 (18) |
C131 | 0.025 (2) | 0.026 (2) | 0.025 (2) | 0.0034 (17) | 0.0073 (17) | 0.0041 (16) |
C132 | 0.030 (2) | 0.037 (2) | 0.032 (2) | 0.0030 (19) | 0.0031 (19) | −0.0026 (19) |
C133 | 0.042 (3) | 0.033 (2) | 0.054 (3) | 0.007 (2) | 0.005 (2) | −0.005 (2) |
C134 | 0.035 (3) | 0.033 (2) | 0.059 (3) | 0.009 (2) | 0.004 (2) | 0.009 (2) |
C135 | 0.048 (3) | 0.036 (2) | 0.044 (3) | 0.006 (2) | −0.008 (2) | 0.004 (2) |
C136 | 0.050 (3) | 0.031 (2) | 0.029 (2) | 0.006 (2) | −0.004 (2) | 0.0034 (19) |
C211 | 0.0250 (19) | 0.023 (2) | 0.021 (2) | 0.0001 (15) | 0.0066 (16) | 0.0034 (15) |
C212 | 0.029 (2) | 0.030 (2) | 0.036 (3) | 0.0000 (18) | 0.008 (2) | −0.0069 (18) |
C213 | 0.029 (2) | 0.044 (2) | 0.045 (3) | −0.009 (2) | 0.006 (2) | −0.008 (2) |
C214 | 0.028 (2) | 0.043 (2) | 0.044 (3) | 0.000 (2) | 0.015 (2) | 0.002 (2) |
C215 | 0.036 (2) | 0.036 (2) | 0.033 (2) | 0.0046 (19) | 0.014 (2) | −0.0054 (19) |
C216 | 0.032 (2) | 0.032 (2) | 0.033 (2) | −0.0015 (18) | 0.0100 (19) | −0.0059 (18) |
C221 | 0.025 (2) | 0.0233 (19) | 0.019 (2) | −0.0038 (16) | 0.0009 (16) | 0.0003 (15) |
C222 | 0.031 (2) | 0.030 (2) | 0.032 (2) | 0.0023 (18) | 0.0100 (19) | 0.0083 (18) |
C223 | 0.034 (2) | 0.042 (3) | 0.048 (3) | 0.000 (2) | 0.019 (2) | 0.005 (2) |
C224 | 0.055 (3) | 0.034 (2) | 0.054 (3) | −0.007 (2) | 0.026 (3) | 0.014 (2) |
C225 | 0.051 (3) | 0.031 (2) | 0.051 (3) | 0.007 (2) | 0.018 (2) | 0.013 (2) |
C226 | 0.036 (2) | 0.033 (2) | 0.039 (3) | 0.0032 (19) | 0.014 (2) | 0.0082 (19) |
C231 | 0.0231 (19) | 0.026 (2) | 0.026 (2) | −0.0035 (16) | 0.0080 (17) | −0.0026 (16) |
C232 | 0.040 (2) | 0.025 (2) | 0.029 (2) | −0.0039 (18) | 0.016 (2) | 0.0014 (17) |
C233 | 0.040 (2) | 0.025 (2) | 0.043 (3) | −0.0013 (19) | 0.022 (2) | 0.0024 (18) |
C234 | 0.041 (3) | 0.034 (2) | 0.046 (3) | −0.010 (2) | 0.023 (2) | −0.010 (2) |
C235 | 0.037 (2) | 0.043 (3) | 0.029 (2) | −0.004 (2) | 0.010 (2) | −0.0075 (19) |
C236 | 0.032 (2) | 0.030 (2) | 0.032 (2) | −0.0022 (18) | 0.0093 (19) | −0.0025 (18) |
O3 | 0.128 (4) | 0.106 (3) | 0.079 (3) | 0.048 (3) | 0.059 (3) | 0.028 (3) |
C7 | 0.190 (9) | 0.082 (5) | 0.216 (11) | 0.001 (6) | 0.141 (8) | −0.002 (6) |
C8 | 0.097 (5) | 0.077 (4) | 0.070 (4) | 0.044 (4) | 0.054 (4) | 0.024 (3) |
C9 | 0.088 (5) | 0.137 (6) | 0.099 (6) | 0.025 (5) | 0.034 (5) | −0.024 (5) |
Pd1—S1 | 2.3020 (11) | C133—H133 | 0.9500 |
Pd1—P1 | 2.3366 (13) | C134—C135 | 1.379 (6) |
Pd1—P2 | 2.3303 (12) | C134—H134 | 0.9500 |
Pd1—Cl1 | 2.3550 (11) | C135—C136 | 1.378 (5) |
S1—C1 | 1.744 (4) | C135—H135 | 0.9500 |
P1—C111 | 1.824 (4) | C136—H136 | 0.9500 |
P1—C121 | 1.828 (4) | C211—C212 | 1.384 (5) |
P1—C131 | 1.817 (4) | C211—C216 | 1.392 (5) |
P2—C211 | 1.833 (4) | C212—C213 | 1.385 (5) |
P2—C221 | 1.826 (4) | C212—H212 | 0.9500 |
P2—C231 | 1.821 (4) | C213—C214 | 1.374 (6) |
O1—N1 | 1.228 (4) | C213—H213 | 0.9500 |
O2—N1 | 1.237 (4) | C214—C215 | 1.389 (5) |
N1—C6 | 1.458 (5) | C214—H214 | 0.9500 |
C1—C6 | 1.407 (5) | C215—C216 | 1.378 (5) |
C1—C2 | 1.414 (5) | C215—H215 | 0.9500 |
C2—C3 | 1.371 (5) | C216—H216 | 0.9500 |
C2—H2 | 0.9500 | C221—C222 | 1.393 (5) |
C3—C4 | 1.391 (6) | C221—C226 | 1.380 (5) |
C3—H3 | 0.9500 | C222—C223 | 1.377 (5) |
C4—C5 | 1.358 (6) | C222—H222 | 0.9500 |
C4—H4 | 0.9500 | C223—C224 | 1.376 (6) |
C5—C6 | 1.383 (5) | C223—H223 | 0.9500 |
C5—H5 | 0.9500 | C224—C225 | 1.376 (6) |
C111—C112 | 1.403 (5) | C224—H224 | 0.9500 |
C111—C116 | 1.377 (5) | C225—C226 | 1.394 (5) |
C112—C113 | 1.378 (5) | C225—H225 | 0.9500 |
C112—H112 | 0.9500 | C226—H226 | 0.9500 |
C113—C114 | 1.374 (6) | C231—C232 | 1.395 (5) |
C113—H113 | 0.9500 | C231—C236 | 1.384 (5) |
C114—C115 | 1.378 (6) | C232—C233 | 1.400 (5) |
C114—H114 | 0.9500 | C232—H232 | 0.9500 |
C115—C116 | 1.393 (5) | C233—C234 | 1.381 (6) |
C115—H115 | 0.9500 | C233—H233 | 0.9500 |
C116—H116 | 0.9500 | C234—C235 | 1.381 (6) |
C121—C122 | 1.391 (5) | C234—H234 | 0.9500 |
C121—C126 | 1.388 (5) | C235—C236 | 1.385 (5) |
C122—C123 | 1.390 (5) | C235—H235 | 0.9500 |
C122—H122 | 0.9500 | C236—H236 | 0.9500 |
C123—C124 | 1.376 (6) | O3—C8 | 1.192 (6) |
C123—H123 | 0.9500 | C7—C8 | 1.491 (9) |
C124—C125 | 1.383 (6) | C7—H7A | 0.9800 |
C124—H124 | 0.9500 | C7—H7B | 0.9800 |
C125—C126 | 1.377 (6) | C7—H7C | 0.9800 |
C125—H125 | 0.9500 | C7—H7D | 0.9800 |
C126—H126 | 0.9500 | C7—H7E | 0.9800 |
C131—C132 | 1.391 (5) | C7—H7F | 0.9800 |
C131—C136 | 1.390 (5) | C8—C9 | 1.456 (9) |
C132—C133 | 1.395 (5) | C9—H9A | 0.9800 |
C132—H132 | 0.9500 | C9—H9B | 0.9800 |
C133—C134 | 1.359 (6) | C9—H9C | 0.9800 |
Cl1—Pd1—P1 | 89.56 (4) | C136—C135—H135 | 120.3 |
Cl1—Pd1—P2 | 88.59 (4) | C134—C135—H135 | 120.3 |
S1—Pd1—P1 | 90.63 (4) | C135—C136—C131 | 121.4 (4) |
S1—Pd1—P2 | 91.69 (4) | C135—C136—H136 | 119.3 |
Cl1—Pd1—S1 | 174.19 (3) | C131—C136—H136 | 119.3 |
P1—Pd1—P2 | 174.98 (3) | C212—C211—C216 | 118.6 (4) |
C1—S1—Pd1 | 105.52 (14) | C212—C211—P2 | 121.8 (3) |
C131—P1—C111 | 102.51 (17) | C216—C211—P2 | 119.5 (3) |
C131—P1—C121 | 106.98 (17) | C211—C212—C213 | 120.4 (4) |
C111—P1—C121 | 104.01 (17) | C211—C212—H212 | 119.8 |
C131—P1—Pd1 | 112.75 (13) | C213—C212—H212 | 119.8 |
C111—P1—Pd1 | 118.99 (12) | C214—C213—C212 | 120.8 (4) |
C121—P1—Pd1 | 110.57 (12) | C214—C213—H213 | 119.6 |
C231—P2—C221 | 101.35 (17) | C212—C213—H213 | 119.6 |
C231—P2—C211 | 105.87 (17) | C213—C214—C215 | 119.3 (4) |
C221—P2—C211 | 105.18 (16) | C213—C214—H214 | 120.4 |
C231—P2—Pd1 | 116.20 (13) | C215—C214—H214 | 120.4 |
C221—P2—Pd1 | 118.57 (12) | C216—C215—C214 | 120.0 (4) |
C211—P2—Pd1 | 108.48 (12) | C216—C215—H215 | 120.0 |
O1—N1—O2 | 122.4 (4) | C214—C215—H215 | 120.0 |
O1—N1—C6 | 118.9 (3) | C215—C216—C211 | 121.0 (4) |
O2—N1—C6 | 118.6 (4) | C215—C216—H216 | 119.5 |
C2—C1—C6 | 113.8 (4) | C211—C216—H216 | 119.5 |
C2—C1—S1 | 121.2 (3) | C226—C221—C222 | 118.7 (3) |
C6—C1—S1 | 125.0 (3) | C226—C221—P2 | 123.9 (3) |
C3—C2—C1 | 123.7 (4) | C222—C221—P2 | 117.5 (3) |
C3—C2—H2 | 118.1 | C223—C222—C221 | 120.8 (4) |
C1—C2—H2 | 118.1 | C223—C222—H222 | 119.6 |
C2—C3—C4 | 119.6 (4) | C221—C222—H222 | 119.6 |
C2—C3—H3 | 120.2 | C224—C223—C222 | 119.6 (4) |
C4—C3—H3 | 120.2 | C224—C223—H223 | 120.2 |
C5—C4—C3 | 119.1 (4) | C222—C223—H223 | 120.2 |
C5—C4—H4 | 120.5 | C225—C224—C223 | 120.9 (4) |
C3—C4—H4 | 120.5 | C225—C224—H224 | 119.5 |
C4—C5—C6 | 121.1 (4) | C223—C224—H224 | 119.5 |
C4—C5—H5 | 119.5 | C224—C225—C226 | 119.1 (4) |
C6—C5—H5 | 119.5 | C224—C225—H225 | 120.5 |
C1—C6—C5 | 122.7 (4) | C226—C225—H225 | 120.5 |
C1—C6—N1 | 121.3 (4) | C221—C226—C225 | 120.9 (4) |
C5—C6—N1 | 116.0 (4) | C221—C226—H226 | 119.6 |
C116—C111—C112 | 118.6 (4) | C225—C226—H226 | 119.6 |
C116—C111—P1 | 123.2 (3) | C236—C231—C232 | 118.9 (3) |
C112—C111—P1 | 118.2 (3) | C236—C231—P2 | 120.2 (3) |
C113—C112—C111 | 120.9 (4) | C232—C231—P2 | 120.9 (3) |
C113—C112—H112 | 119.5 | C231—C232—C233 | 120.1 (4) |
C111—C112—H112 | 119.5 | C231—C232—H232 | 120.0 |
C114—C113—C112 | 119.9 (4) | C233—C232—H232 | 120.0 |
C114—C113—H113 | 120.1 | C234—C233—C232 | 119.9 (4) |
C112—C113—H113 | 120.1 | C234—C233—H233 | 120.0 |
C113—C114—C115 | 120.0 (4) | C232—C233—H233 | 120.0 |
C113—C114—H114 | 120.0 | C233—C234—C235 | 120.1 (4) |
C115—C114—H114 | 120.0 | C233—C234—H234 | 119.9 |
C114—C115—C116 | 120.4 (4) | C235—C234—H234 | 119.9 |
C114—C115—H115 | 119.8 | C234—C235—C236 | 119.9 (4) |
C116—C115—H115 | 119.8 | C234—C235—H235 | 120.0 |
C111—C116—C115 | 120.2 (4) | C236—C235—H235 | 120.0 |
C111—C116—H116 | 119.9 | C231—C236—C235 | 121.0 (4) |
C115—C116—H116 | 119.9 | C231—C236—H236 | 119.5 |
C126—C121—C122 | 118.9 (4) | C235—C236—H236 | 119.5 |
C126—C121—P1 | 118.2 (3) | C8—C7—H7A | 109.5 |
C122—C121—P1 | 122.8 (3) | C8—C7—H7B | 109.5 |
C123—C122—C121 | 119.6 (4) | H7A—C7—H7B | 109.5 |
C123—C122—H122 | 120.2 | C8—C7—H7C | 109.5 |
C121—C122—H122 | 120.2 | H7A—C7—H7C | 109.5 |
C124—C123—C122 | 120.7 (4) | H7B—C7—H7C | 109.5 |
C124—C123—H123 | 119.6 | C8—C7—H7D | 109.5 |
C122—C123—H123 | 119.6 | H7A—C7—H7D | 141.1 |
C123—C124—C125 | 119.9 (4) | H7B—C7—H7D | 56.3 |
C123—C124—H124 | 120.1 | H7C—C7—H7D | 56.3 |
C125—C124—H124 | 120.1 | C8—C7—H7E | 109.5 |
C126—C125—C124 | 119.7 (4) | H7A—C7—H7E | 56.3 |
C126—C125—H125 | 120.2 | H7B—C7—H7E | 141.1 |
C124—C125—H125 | 120.2 | H7C—C7—H7E | 56.3 |
C125—C126—C121 | 121.2 (4) | H7D—C7—H7E | 109.5 |
C125—C126—H126 | 119.4 | C8—C7—H7F | 109.5 |
C121—C126—H126 | 119.4 | H7A—C7—H7F | 56.3 |
C136—C131—C132 | 118.3 (3) | H7B—C7—H7F | 56.3 |
C136—C131—P1 | 120.3 (3) | H7C—C7—H7F | 141.1 |
C132—C131—P1 | 121.3 (3) | H7D—C7—H7F | 109.5 |
C131—C132—C133 | 119.9 (4) | H7E—C7—H7F | 109.5 |
C131—C132—H132 | 120.0 | O3—C8—C9 | 122.5 (7) |
C133—C132—H132 | 120.0 | O3—C8—C7 | 122.6 (7) |
C134—C133—C132 | 120.5 (4) | C9—C8—C7 | 114.9 (6) |
C134—C133—H133 | 119.7 | C8—C9—H9A | 109.5 |
C132—C133—H133 | 119.7 | C8—C9—H9B | 109.5 |
C133—C134—C135 | 120.4 (4) | H9A—C9—H9B | 109.5 |
C133—C134—H134 | 119.8 | C8—C9—H9C | 109.5 |
C135—C134—H134 | 119.8 | H9A—C9—H9C | 109.5 |
C136—C135—C134 | 119.4 (4) | H9B—C9—H9C | 109.5 |
P2—Pd1—S1—C1 | 87.58 (13) | P1—C121—C126—C125 | −178.2 (3) |
P1—Pd1—S1—C1 | −87.97 (13) | C111—P1—C131—C136 | 33.4 (4) |
S1—Pd1—P1—C131 | −100.03 (13) | C121—P1—C131—C136 | −75.6 (3) |
S1—Pd1—P1—C111 | 20.03 (15) | Pd1—P1—C131—C136 | 162.6 (3) |
Cl1—Pd1—P1—C111 | −165.77 (15) | C111—P1—C131—C132 | −143.6 (3) |
S1—Pd1—P1—C121 | 140.26 (12) | C121—P1—C131—C132 | 107.3 (3) |
Cl1—Pd1—P1—C121 | −45.54 (13) | Pd1—P1—C131—C132 | −14.4 (4) |
Cl1—Pd1—P1—C131 | 74.17 (13) | C136—C131—C132—C133 | −0.9 (6) |
S1—Pd1—P2—C231 | 106.54 (13) | P1—C131—C132—C133 | 176.2 (3) |
Cl1—Pd1—P2—C211 | 51.41 (12) | C131—C132—C133—C134 | −0.8 (7) |
S1—Pd1—P2—C221 | −14.64 (14) | C132—C133—C134—C135 | 1.7 (7) |
Cl1—Pd1—P2—C221 | 171.16 (14) | C133—C134—C135—C136 | −0.9 (7) |
S1—Pd1—P2—C211 | −134.39 (12) | C134—C135—C136—C131 | −0.8 (7) |
Cl1—Pd1—P2—C231 | −67.66 (13) | C132—C131—C136—C135 | 1.7 (6) |
Pd1—S1—C1—C6 | −172.9 (3) | P1—C131—C136—C135 | −175.4 (4) |
Pd1—S1—C1—C2 | 4.8 (3) | C231—P2—C211—C212 | −2.9 (4) |
C6—C1—C2—C3 | −0.5 (6) | C221—P2—C211—C212 | 103.9 (3) |
S1—C1—C2—C3 | −178.4 (3) | Pd1—P2—C211—C212 | −128.3 (3) |
C1—C2—C3—C4 | 0.2 (6) | C231—P2—C211—C216 | 174.0 (3) |
C2—C3—C4—C5 | 0.8 (6) | C221—P2—C211—C216 | −79.2 (3) |
C3—C4—C5—C6 | −1.5 (7) | Pd1—P2—C211—C216 | 48.6 (3) |
C4—C5—C6—C1 | 1.2 (7) | C216—C211—C212—C213 | 0.9 (6) |
C4—C5—C6—N1 | −178.5 (4) | P2—C211—C212—C213 | 177.7 (3) |
C2—C1—C6—C5 | −0.2 (6) | C211—C212—C213—C214 | −0.3 (7) |
S1—C1—C6—C5 | 177.6 (3) | C212—C213—C214—C215 | −0.2 (7) |
C2—C1—C6—N1 | 179.5 (3) | C213—C214—C215—C216 | 0.2 (7) |
S1—C1—C6—N1 | −2.7 (6) | C214—C215—C216—C211 | 0.3 (6) |
O1—N1—C6—C5 | 163.5 (4) | C212—C211—C216—C215 | −0.9 (6) |
O2—N1—C6—C5 | −15.9 (6) | P2—C211—C216—C215 | −177.8 (3) |
O1—N1—C6—C1 | −16.2 (6) | C231—P2—C221—C226 | 125.7 (3) |
O2—N1—C6—C1 | 164.4 (4) | C211—P2—C221—C226 | 15.6 (4) |
C131—P1—C111—C116 | −129.4 (3) | Pd1—P2—C221—C226 | −105.8 (3) |
C121—P1—C111—C116 | −18.1 (4) | C231—P2—C221—C222 | −55.1 (3) |
Pd1—P1—C111—C116 | 105.4 (3) | C211—P2—C221—C222 | −165.2 (3) |
C131—P1—C111—C112 | 51.4 (3) | Pd1—P2—C221—C222 | 73.4 (3) |
C121—P1—C111—C112 | 162.7 (3) | C226—C221—C222—C223 | −2.2 (6) |
Pd1—P1—C111—C112 | −73.7 (3) | P2—C221—C222—C223 | 178.5 (3) |
C116—C111—C112—C113 | −0.2 (6) | C221—C222—C223—C224 | 1.6 (7) |
P1—C111—C112—C113 | 179.0 (3) | C222—C223—C224—C225 | −0.6 (7) |
C111—C112—C113—C114 | −0.3 (6) | C223—C224—C225—C226 | 0.2 (7) |
C112—C113—C114—C115 | 0.4 (7) | C222—C221—C226—C225 | 1.8 (6) |
C113—C114—C115—C116 | −0.1 (7) | P2—C221—C226—C225 | −179.0 (3) |
C112—C111—C116—C115 | 0.5 (6) | C224—C225—C226—C221 | −0.8 (7) |
P1—C111—C116—C115 | −178.6 (3) | C221—P2—C231—C236 | −36.0 (3) |
C114—C115—C116—C111 | −0.4 (7) | C211—P2—C231—C236 | 73.5 (3) |
C131—P1—C121—C126 | −170.7 (3) | Pd1—P2—C231—C236 | −166.0 (3) |
C111—P1—C121—C126 | 81.3 (3) | C221—P2—C231—C232 | 144.3 (3) |
Pd1—P1—C121—C126 | −47.5 (3) | C211—P2—C231—C232 | −106.2 (3) |
C131—P1—C121—C122 | 9.6 (4) | Pd1—P2—C231—C232 | 14.3 (4) |
C111—P1—C121—C122 | −98.5 (3) | C236—C231—C232—C233 | −0.8 (6) |
Pd1—P1—C121—C122 | 132.7 (3) | P2—C231—C232—C233 | 179.0 (3) |
C126—C121—C122—C123 | −0.4 (6) | C231—C232—C233—C234 | 0.1 (6) |
P1—C121—C122—C123 | 179.3 (3) | C232—C233—C234—C235 | 0.6 (6) |
C121—C122—C123—C124 | −0.8 (6) | C233—C234—C235—C236 | −0.7 (6) |
C122—C123—C124—C125 | 0.8 (6) | C232—C231—C236—C235 | 0.7 (6) |
C123—C124—C125—C126 | 0.3 (7) | P2—C231—C236—C235 | −179.0 (3) |
C124—C125—C126—C121 | −1.5 (6) | C234—C235—C236—C231 | 0.0 (6) |
C122—C121—C126—C125 | 1.6 (6) |
Experimental details
Crystal data | |
Chemical formula | [PdCl(C6H4NO2S)(C18H15P)2]·C3H6O |
Mr | 878.63 |
Crystal system, space group | Monoclinic, P21/n |
Temperature (K) | 150 |
a, b, c (Å) | 18.292 (7), 10.969 (3), 21.363 (8) |
β (°) | 105.0928 (17) |
V (Å3) | 4139 (2) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.68 |
Crystal size (mm) | 0.30 × 0.10 × 0.05 |
Data collection | |
Diffractometer | Enraf-Nonius diffractometer with FAST area-detector |
Absorption correction | Multi-scan (FAST/MADNES; Pflugrath & Messerschmidt, 1989) |
Tmin, Tmax | 0.822, 0.967 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 49325, 11315, 5642 |
Rint | 0.095 |
(sin θ/λ)max (Å−1) | 0.705 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.053, 0.147, 0.94 |
No. of reflections | 11315 |
No. of parameters | 489 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 1.54, −1.10 |
Computer programs: CAD-4-PC Software (Enraf-Nonius, 1992) and FAST/MADNES (Pflugrath & Messerschmidt, 1989), CAD-4-PC Software and FAST/MADNES, SHELXS97 (Sheldrick, 1997), NRCVAX96 (Gabe et al., 1989) and SHELXL97 (Sheldrick, 1997), NRCVAX96, ORTEPII (Johnson, 1976) and PLATON (Spek, 2000), NRCVAX96, SHELXL97 and WORDPERFECT macro PREP8 (Ferguson, 1998).
Pd1—S1 | 2.3020 (11) | S1—C1 | 1.744 (4) |
Pd1—P1 | 2.3366 (13) | O1—N1 | 1.228 (4) |
Pd1—P2 | 2.3303 (12) | O2—N1 | 1.237 (4) |
Pd1—Cl1 | 2.3550 (11) | N1—C6 | 1.458 (5) |
Cl1—Pd1—P1 | 89.56 (4) | O1—N1—O2 | 122.4 (4) |
Cl1—Pd1—P2 | 88.59 (4) | C2—C1—C6 | 113.8 (4) |
S1—Pd1—P1 | 90.63 (4) | C2—C1—S1 | 121.2 (3) |
S1—Pd1—P2 | 91.69 (4) | C6—C1—S1 | 125.0 (3) |
Cl1—Pd1—S1 | 174.19 (3) | C1—C6—C5 | 122.7 (4) |
P1—Pd1—P2 | 174.98 (3) | C1—C6—N1 | 121.3 (4) |
C1—S1—Pd1 | 105.52 (14) | C5—C6—N1 | 116.0 (4) |
Cl1—Pd1—P1—C111 | −165.77 (15) | Cl1—Pd1—P2—C211 | 51.41 (12) |
Cl1—Pd1—P1—C121 | −45.54 (13) | Cl1—Pd1—P2—C221 | 171.16 (14) |
Cl1—Pd1—P1—C131 | 74.17 (13) | Cl1—Pd1—P2—C231 | −67.66 (13) |
We have recently reported the structures of members of the 2-O2NC6H4SX system containing the 2-nitrophenylthiolate group, in which the α-atom of fragment X can be C or N (Low, Storey et al., 2000) or S (Low, Glidewell & Wardell, 2000). In general, at the global energy minimum conformation, both the nitro group and the α-atom of group X are essentially coplanar with the aryl ring. When X is not in the plane of the aryl ring, rotation about the exocyclic C—S bond is associated with a disrotatory twist of the nitro group about the C—N bond; the occurrence of such conformations seems to depend on the presence in the structure of specific intermolecular interactions, such as C—H···O hydrogen bonds. Seeking to investigate the wider generality of this idea, we report here the structure of a further compound of type 2-O2NC6H4SX, namely trans-chloro(2-nitrobenzenethiolato)bis(triphenylphosphine)palladium(II), (I), in which the α-atom of group X is Pd and which crystallizes from acetone as a 1:1 solvate.
Molecules of (I) lie in general positions (Fig. 1). Although no bond angle at Pd involving a pair of cis substituents deviates from 90° by more than 1.7°, nonetheless there a slight but significant distortion from planarity towards tetrahedral and both bond angles at Pd involving trans pairs of substituents are less than 175° (Table 1). The deviations (Å) of the ligating atoms from their best plane through Pd are: Cl −0.106 (1), S −0.105 (1), P1 0.105 (1) and P2 0.106 (1). In this respect, the configuration of the trans-PdClP2S chromophore in (I) differs from those found in two analogous compounds retrieved from the Cambridge Structural Database (Allen & Kennard, 1993), containing trans-PdCl2P2 and trans-PdP2S2 chromophores. Molecules of trans-[PdCl2(PPh3)2] are centrosymmetric both in the unsolvated compound (BISKIX; Ferguson et al., 1982) and in the bis-chloroform solvate (RAVYUI; Stark & Whitmire, 1997). Similarly, molecules of trans-[Pd{PH(C6H11)2}2(SPh)2] (LETNON; Pasquali et al., 1993) lie across inversion centres. Hence, in all these complexes, palladium and its four ligating atoms are strictly coplanar.
The conformation of (I) is close to that expected (Low, Storey et al., 2000) for the global energy minimum. There is a slight rotation around the C—S bond away from coplanarity of the Pd atom, with the nitrated aryl ring and a disrotatory twist of the nitro group around the C—N bond. The dihedral angles between the nitrated aryl ring and the planes defined by C1—S1—Pd1—Cl1 and C6—NO2 are 6.2 (2) and 16.3 (2)°, respectively. In centrosymmetric molecules of trans-[PdCl2(PPh3)2] (Ferguson et al., 1982; Stark & Whitmire, 1997), the P—C bonds of the two phosphine ligands are necessarily exactly staggered. In contrast in (I), these P—C bonds are almost eclipsed, with a mean deviation of 5.9 (3)° from a fully eclipsed Ph3P—Pd-PPh3 fragment. Presumably, the rotational barriers about the Pd—P bonds are low.
The two independent Pd—P distances in (I) (Table 1) are both very similar to those reported for BISKIX [2.337 (2) Å] and RAVYUI [2.343 (2) Å]. However, the Pd—Cl distance in (I) is very much longer than the corresponding distances in BISKIX [2.291 (2) Å] and RAVYUI [2.293 (2) Å]. On the other hand, the Pd—S distance in (I) is much shorter than those reported for LETNON [2.3393 (16) and 2.3366 (19) Å in two independent molecules]. These observations can all be readily rationalized in terms of the trans influence, t(X), of a ligand X upon the properties of the metal–ligand bond trans to X, which arises from the competition for a common metal d orbital of the π type between ligands occupying trans sites. Ligands of high trans-influence render the metal–ligand bonds trans to themselves longer (Appleton et al., 1973), and ligands can thus be ranked in order of t(X). This is a static thermodynamic phenomenon which closely parallels the dynamic kinetic trans effect describing the influence on the rates of ligand substitution exerted by ligands in trans sites (Basolo & Pearson, 1962). The data for (I) and related compounds show that a Pd—S bond trans to Cl is much shorter than a Pd—S bond trans to another thiolate; hence, t(SR−) >> t(Cl−). Similarly, Pd—P bonds trans to another P are typically much shorter than Pd—P bonds trans to chloride. For example, in cis-[PdCl2(Me2N=CH)PPh3] (McCrindle et al., 2000), the Pd—P distance is 2.2495 (7) Å, much shorter than the corresponding bonds in (I), BISKIX and RAVYUI. Likewise, in [PdCl2(Me2N=CH)PPh3], the Pd—Cl bond trans to P is very much longer [2.3600 (7) Å] than those in BISKIX [2.291 (2) Å] and RAVYUI [2.293 (2) Å], so that t(PR3) >> t(Cl−). The order of PR3 and SR− can be established by comparison of analogous cis- and trans-PdP2S2 chromophores, as for example in LETNON and [Pd(Ph2PCH2CH2PPh2)(SCH2Ph)2] (TERREN; Su et al., 1997). On moving form trans to cis geometry, the Pd—P bonds become shorter and the Pd—S bonds become longer, hence, t(PR3) > t(SR−) and overall t(PR3) > t(SR−) > t(Cl−).
There is evidence of C—C bond fixation in the nitrated aryl ring, where the C—C distances range from 1.358 (6) to 1.414 (5) Å. This range is greater than is usual for compounds of this type (Low, Storey et al., 2000; Low, Glidewell & Wardell, 2000), although the C—N distance and the O—N—O angle are both entirely typical of their types, so ruling out any p-quinonoid-type bond fixation, as observed in 2-O2NC6H4SCH=CHPh (Low, Storey et al., 2000). On the other hand, the C—S distance is significantly shorter than those observed in previous examples of 2-O2NC6H4SX compounds. For comparison, the lower quartile value for a C(aryl)—S—C bond distance is 1.765 Å and, indeed, C(aryl)—S bonds as short as that in (I) are generally found only with four-coordinate SVI (Allen et al., 1987). The short C—S bond and the extremely small C—C—C angles ipso to S are together consistent with significant electron donation from S into the adjacent ring (Domenicano & Murray-Rust, 1979).
The solvating acetone molecule is linked to a phenyl group in one of the phosphine ligands of (I) by a C—H···O hydrogen bond (Table 2).