Supporting information
Crystallographic Information File (CIF) https://doi.org/10.1107/S1600536807030280/dn2205sup1.cif | |
Structure factor file (CIF format) https://doi.org/10.1107/S1600536807030280/dn2205Isup2.hkl |
CCDC reference: 654817
Key indicators
- Single-crystal X-ray study
- T = 173 K
- Mean (C-C) = 0.005 Å
- R factor = 0.031
- wR factor = 0.064
- Data-to-parameter ratio = 17.4
checkCIF/PLATON results
No syntax errors found
Alert level C GOODF01_ALERT_2_C The least squares goodness of fit parameter lies outside the range 0.80 <> 2.00 Goodness of fit given = 0.775 PLAT220_ALERT_2_C Large Non-Solvent C Ueq(max)/Ueq(min) ... 2.98 Ratio PLAT222_ALERT_3_C Large Non-Solvent H Ueq(max)/Ueq(min) ... 3.26 Ratio PLAT601_ALERT_2_C Structure Contains Solvent Accessible VOIDS of . 66.00 A 3
0 ALERT level A = In general: serious problem 0 ALERT level B = Potentially serious problem 4 ALERT level C = Check and explain 0 ALERT level G = General alerts; check 0 ALERT type 1 CIF construction/syntax error, inconsistent or missing data 3 ALERT type 2 Indicator that the structure model may be wrong or deficient 1 ALERT type 3 Indicator that the structure quality may be low 0 ALERT type 4 Improvement, methodology, query or suggestion 0 ALERT type 5 Informative message, check
The synthesis of [PdCl(µ2-PPh2){PPh2CH2(2,4,6-Me3C6H2)}]2 is identical to the synthesis of [PdCl(µ2-PPh2)(PPh3)]2 (Brandon & Dixon, 1981). The yellow product is purified by column chromatography on silica gel (dichloromethane:acetone, 1:2).
1H NMR (CDCl3): 6.9–6.2 (m, 44H), 2.76 (m, 4H), 1.58 (s, 12H), 1.34 (m, 6H). 31P NMR (CDCl3): 7.5 and -142.6 p.p.m.. MS (ESI, m/z): 1291; [C68H66Cl2P4Pd2] Calcd. for C68H66Cl2P4Pd2: C, 63.27; H, 5.15 Found: C, 62.87; H, 5.02.
[PdCl(µ2-PPh2){PPh2CH2(2,4,6-Me3C6H2)}]2 is disolved in chloroform, and crystals suitable for X-ray diffraction analysis are obtained by slow evaporation of the chloroform solution.
The H atoms were included in calculated positions and refined using a riding model, with C—H = 0.93–0.96 Å and with Uiso(H) = 1.2 (1.5 for methyl groups) times Ueq(C).
The title compound, [PdCl(µ2-PPh2){PPh2CH2(2,4,6-Me3C6H2)}]2, (I), is prepared in a similar manner as the isoelectronic dinuclear palladium complex [PdCl(µ2-PPh2)(PPh3)]2 (Brandon & Dixon, 1981). The triphenylphosphine being replaced by (mesithylmethyl)(diphenyl)phosphine (Chahen et al., 2006). The 31P{1H} NMR spectrum gives rise to two multiplets centred at 7.5 and -142.6 p.p.m. respectively. The signals are consistent with an AA'BB' spin system (Brandon & Dixon, 1981). The molecular structure of (I) shows the palladium atoms to be surrounded by two phosphido-bridged ligands, a chloride, and a PPh2CH2(2,4,6-Me3C6H2) ligand. The complex adopts the trans-symmetrical isomer, see scheme.
The two halves of the dinuclear complex are related by a crystallography twofold rotation axis, see Fig. 1. The Pd atoms are in a slightly distorted square-planar geometry. The plane formed by the palladium, the chloride and the three P atoms is mainly planar, with a maximum deviation from the mean plane of 0.0770 (4)Å for one bridging P atom. However, the angle between the two square-planar units is 12.63 (1)°, giving rise to a slightly bent conformation for the dimeric unit, see Fig. 2. Otherwise, the bond distances and angles are similar to those found in [PtCl(µ2-PPh2)(HPPh2)]2 (Carty et al., 1982), [PdCl(µ2-PPh2)(HPPh2)]2 (Gebauer et al., 1992) and [PdI(µ2-PPh2)(HPPh2)]2 (Zhuravel et al., 2000).
For similar dinuclear palladium complexes, see: Brandon & Dixon (1981); Carty et al. (1982); Gebauer et al. (1992); Zhuravel et al. (2000). For the synthesis of PPh2CH2(2,4,6-Me3C6H2), see: Chahen et al. (2006).
Data collection: EXPOSE in IPDS Software (Stoe & Cie, 2000); cell refinement: CELL in IPDS Software; data reduction: INTEGRATE in IPDS Software; program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: ORTEP-3 (Farrugia, 1997) and Mercury (Version 1.4.1; Bruno et al., 2002); software used to prepare material for publication: SHELXL97.
[Pd2(C12H10P)2Cl2(C22H23P)2] | F(000) = 2640 |
Mr = 1290.83 | Dx = 1.392 Mg m−3 |
Orthorhombic, Pccn | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ab 2ac | Cell parameters from 8000 reflections |
a = 12.0793 (7) Å | θ = 2.1–25.9° |
b = 22.6156 (14) Å | µ = 0.81 mm−1 |
c = 22.5499 (14) Å | T = 173 K |
V = 6160.2 (6) Å3 | Plate, yellow |
Z = 4 | 0.31 × 0.24 × 0.17 mm |
Stoe IPDS diffractometer | 3498 reflections with I > 2σ(I) |
Radiation source: fine-focus sealed tube | Rint = 0.089 |
Graphite monochromator | θmax = 26.0°, θmin = 2.0° |
Detector resolution: 0.81 pixels mm-1 | h = −14→14 |
φ oscillation scans | k = −27→27 |
46413 measured reflections | l = −27→27 |
6011 independent reflections |
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)] = 0.031 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.064 | H-atom parameters constrained |
S = 0.78 | w = 1/[σ2(Fo2) + (0.0284P)2] where P = (Fo2 + 2Fc2)/3 |
6011 reflections | (Δ/σ)max = 0.002 |
346 parameters | Δρmax = 0.53 e Å−3 |
0 restraints | Δρmin = −0.98 e Å−3 |
[Pd2(C12H10P)2Cl2(C22H23P)2] | V = 6160.2 (6) Å3 |
Mr = 1290.83 | Z = 4 |
Orthorhombic, Pccn | Mo Kα radiation |
a = 12.0793 (7) Å | µ = 0.81 mm−1 |
b = 22.6156 (14) Å | T = 173 K |
c = 22.5499 (14) Å | 0.31 × 0.24 × 0.17 mm |
Stoe IPDS diffractometer | 3498 reflections with I > 2σ(I) |
46413 measured reflections | Rint = 0.089 |
6011 independent reflections |
R[F2 > 2σ(F2)] = 0.031 | 0 restraints |
wR(F2) = 0.064 | H-atom parameters constrained |
S = 0.78 | Δρmax = 0.53 e Å−3 |
6011 reflections | Δρmin = −0.98 e Å−3 |
346 parameters |
Experimental. A crystal was mounted at 173 K on a Stoe Image Plate Diffraction System (Stoe, 2000) using Mo Kα graphite monochromated radiation. Image plate distance 70 mm, φ oscillation scans 0 - 200°, step Δφ = 1.0°, 3 minutes per frame. |
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 | ||
C1 | 0.3394 (2) | 0.68728 (15) | 0.14638 (15) | 0.0288 (8) | |
H1A | 0.3333 | 0.7299 | 0.1498 | 0.035* | |
H1B | 0.2726 | 0.6729 | 0.1273 | 0.035* | |
C2 | 0.3467 (2) | 0.66113 (15) | 0.20757 (16) | 0.0313 (8) | |
C3 | 0.2996 (3) | 0.60533 (16) | 0.21955 (18) | 0.0348 (9) | |
C4 | 0.3181 (3) | 0.57908 (17) | 0.27389 (19) | 0.0446 (10) | |
H4 | 0.2867 | 0.5423 | 0.2813 | 0.054* | |
C5 | 0.3810 (3) | 0.60503 (18) | 0.31752 (19) | 0.0467 (10) | |
C6 | 0.4210 (3) | 0.66176 (18) | 0.30728 (18) | 0.0442 (10) | |
H6 | 0.4601 | 0.6810 | 0.3371 | 0.053* | |
C7 | 0.4040 (3) | 0.69051 (15) | 0.25328 (16) | 0.0332 (8) | |
C8 | 0.2300 (3) | 0.57336 (17) | 0.17367 (18) | 0.0455 (10) | |
H8A | 0.2078 | 0.5356 | 0.1890 | 0.068* | |
H8B | 0.2726 | 0.5678 | 0.1382 | 0.068* | |
H8C | 0.1654 | 0.5965 | 0.1648 | 0.068* | |
C9 | 0.4049 (4) | 0.5717 (2) | 0.3747 (2) | 0.0758 (14) | |
H9A | 0.3390 | 0.5517 | 0.3876 | 0.114* | |
H9B | 0.4282 | 0.5991 | 0.4047 | 0.114* | |
H9C | 0.4625 | 0.5433 | 0.3679 | 0.114* | |
C10 | 0.4471 (3) | 0.75305 (17) | 0.24475 (16) | 0.0434 (9) | |
H10A | 0.3857 | 0.7799 | 0.2420 | 0.065* | |
H10B | 0.4899 | 0.7550 | 0.2090 | 0.065* | |
H10C | 0.4927 | 0.7638 | 0.2779 | 0.065* | |
C11 | 0.4922 (2) | 0.59215 (13) | 0.11434 (15) | 0.0257 (8) | |
C12 | 0.4717 (3) | 0.54607 (15) | 0.07458 (17) | 0.0335 (9) | |
H12 | 0.4377 | 0.5538 | 0.0384 | 0.040* | |
C13 | 0.5023 (3) | 0.48856 (15) | 0.08905 (17) | 0.0379 (10) | |
H13 | 0.4872 | 0.4579 | 0.0628 | 0.045* | |
C14 | 0.5544 (3) | 0.47669 (17) | 0.14176 (19) | 0.0409 (10) | |
H14 | 0.5772 | 0.4384 | 0.1504 | 0.049* | |
C15 | 0.5733 (3) | 0.52168 (16) | 0.18205 (18) | 0.0364 (9) | |
H15 | 0.6068 | 0.5135 | 0.2183 | 0.044* | |
C16 | 0.5420 (2) | 0.57898 (15) | 0.16824 (17) | 0.0304 (8) | |
H16 | 0.5545 | 0.6091 | 0.1955 | 0.036* | |
C17 | 0.4122 (2) | 0.67027 (14) | 0.02220 (15) | 0.0279 (8) | |
C18 | 0.4917 (3) | 0.67252 (16) | −0.02190 (16) | 0.0372 (9) | |
H18 | 0.5662 | 0.6716 | −0.0117 | 0.045* | |
C19 | 0.4618 (3) | 0.67611 (17) | −0.08118 (17) | 0.0443 (10) | |
H19 | 0.5163 | 0.6770 | −0.1103 | 0.053* | |
C20 | 0.3531 (3) | 0.67830 (17) | −0.09702 (19) | 0.0508 (11) | |
H20 | 0.3329 | 0.6810 | −0.1367 | 0.061* | |
C21 | 0.2743 (3) | 0.6765 (2) | −0.0539 (2) | 0.0614 (13) | |
H21 | 0.2000 | 0.6780 | −0.0646 | 0.074* | |
C22 | 0.3022 (3) | 0.67225 (18) | 0.00542 (18) | 0.0475 (11) | |
H22 | 0.2469 | 0.6708 | 0.0341 | 0.057* | |
C23 | 0.7748 (2) | 0.63475 (14) | 0.04978 (15) | 0.0256 (8) | |
C24 | 0.7492 (3) | 0.57485 (15) | 0.05565 (16) | 0.0324 (8) | |
H24 | 0.7251 | 0.5605 | 0.0921 | 0.039* | |
C25 | 0.7593 (3) | 0.53672 (18) | 0.00822 (18) | 0.0466 (10) | |
H25 | 0.7424 | 0.4969 | 0.0130 | 0.056* | |
C26 | 0.7940 (3) | 0.5572 (2) | −0.0457 (2) | 0.0540 (12) | |
H26 | 0.8001 | 0.5314 | −0.0777 | 0.065* | |
C27 | 0.8196 (3) | 0.6159 (2) | −0.05260 (18) | 0.0527 (11) | |
H27 | 0.8432 | 0.6297 | −0.0894 | 0.063* | |
C28 | 0.8109 (3) | 0.65508 (17) | −0.00562 (16) | 0.0378 (9) | |
H28 | 0.8289 | 0.6947 | −0.0108 | 0.045* | |
C29 | 0.7848 (2) | 0.65141 (14) | 0.17945 (16) | 0.0262 (8) | |
C30 | 0.8636 (3) | 0.60701 (15) | 0.18551 (18) | 0.0357 (9) | |
H30 | 0.9022 | 0.5934 | 0.1526 | 0.043* | |
C31 | 0.8840 (3) | 0.58332 (18) | 0.2410 (2) | 0.0500 (11) | |
H31 | 0.9355 | 0.5530 | 0.2450 | 0.060* | |
C32 | 0.8293 (3) | 0.6039 (2) | 0.2902 (2) | 0.0550 (12) | |
H32 | 0.8440 | 0.5875 | 0.3272 | 0.066* | |
C33 | 0.7531 (4) | 0.64862 (19) | 0.28494 (17) | 0.0513 (11) | |
H33 | 0.7170 | 0.6631 | 0.3183 | 0.062* | |
C34 | 0.7303 (3) | 0.67193 (16) | 0.22955 (16) | 0.0375 (9) | |
H34 | 0.6778 | 0.7018 | 0.2258 | 0.045* | |
Cl1 | 0.46039 (6) | 0.81271 (4) | 0.08771 (4) | 0.0368 (2) | |
P3 | 0.76040 (6) | 0.68822 (3) | 0.10901 (4) | 0.02197 (18) | |
P5 | 0.46032 (6) | 0.66918 (4) | 0.09866 (4) | 0.02419 (19) | |
Pd1 | 0.601393 (16) | 0.741408 (10) | 0.103340 (11) | 0.02204 (7) |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0208 (15) | 0.033 (2) | 0.033 (2) | 0.0008 (14) | 0.0053 (14) | −0.0005 (17) |
C2 | 0.0270 (17) | 0.035 (2) | 0.032 (2) | 0.0045 (15) | 0.0070 (15) | 0.0018 (18) |
C3 | 0.0304 (17) | 0.038 (2) | 0.037 (2) | 0.0009 (16) | 0.0071 (16) | −0.0002 (19) |
C4 | 0.039 (2) | 0.042 (2) | 0.052 (3) | −0.0029 (18) | 0.012 (2) | 0.010 (2) |
C5 | 0.048 (2) | 0.055 (3) | 0.037 (3) | 0.002 (2) | 0.006 (2) | 0.007 (2) |
C6 | 0.045 (2) | 0.055 (3) | 0.033 (3) | 0.0003 (19) | 0.0029 (18) | −0.004 (2) |
C7 | 0.0287 (16) | 0.036 (2) | 0.034 (2) | 0.0011 (17) | 0.0073 (17) | −0.0054 (17) |
C8 | 0.042 (2) | 0.046 (3) | 0.048 (3) | −0.0153 (18) | 0.0046 (18) | 0.005 (2) |
C9 | 0.095 (4) | 0.081 (4) | 0.052 (3) | −0.002 (3) | −0.010 (3) | 0.024 (3) |
C10 | 0.0496 (19) | 0.045 (2) | 0.036 (2) | −0.0038 (19) | 0.0057 (16) | −0.010 (2) |
C11 | 0.0238 (15) | 0.0244 (17) | 0.029 (2) | 0.0010 (13) | 0.0014 (14) | 0.0013 (16) |
C12 | 0.0353 (18) | 0.033 (2) | 0.033 (2) | −0.0068 (15) | −0.0013 (16) | 0.0033 (17) |
C13 | 0.048 (2) | 0.0225 (19) | 0.043 (3) | −0.0054 (16) | 0.0112 (18) | −0.0054 (18) |
C14 | 0.046 (2) | 0.029 (2) | 0.048 (3) | 0.0036 (16) | 0.0113 (19) | 0.007 (2) |
C15 | 0.0339 (19) | 0.038 (2) | 0.038 (3) | 0.0032 (15) | 0.0048 (16) | 0.0130 (19) |
C16 | 0.0228 (16) | 0.032 (2) | 0.037 (2) | 0.0005 (14) | 0.0033 (15) | 0.0003 (18) |
C17 | 0.0299 (17) | 0.0249 (18) | 0.029 (2) | −0.0019 (15) | −0.0042 (15) | −0.0012 (15) |
C18 | 0.0399 (19) | 0.040 (2) | 0.031 (2) | −0.0046 (17) | 0.0001 (17) | 0.0013 (19) |
C19 | 0.062 (3) | 0.042 (2) | 0.029 (2) | −0.0030 (19) | 0.0041 (19) | −0.0003 (19) |
C20 | 0.070 (3) | 0.053 (2) | 0.029 (3) | 0.0086 (19) | −0.016 (2) | 0.000 (2) |
C21 | 0.046 (3) | 0.090 (4) | 0.048 (3) | 0.011 (2) | −0.024 (2) | −0.006 (3) |
C22 | 0.0335 (19) | 0.070 (3) | 0.039 (3) | 0.0002 (19) | −0.0039 (18) | −0.001 (2) |
C23 | 0.0205 (17) | 0.030 (2) | 0.026 (2) | 0.0043 (13) | −0.0024 (13) | −0.0059 (16) |
C24 | 0.0297 (15) | 0.032 (2) | 0.036 (2) | −0.0042 (15) | 0.0036 (19) | −0.0080 (18) |
C25 | 0.046 (2) | 0.042 (2) | 0.052 (3) | −0.0046 (18) | 0.001 (2) | −0.019 (2) |
C26 | 0.059 (2) | 0.061 (3) | 0.042 (3) | 0.002 (2) | −0.002 (2) | −0.028 (2) |
C27 | 0.063 (3) | 0.076 (3) | 0.019 (2) | 0.007 (2) | 0.002 (2) | −0.005 (2) |
C28 | 0.047 (2) | 0.041 (2) | 0.026 (2) | 0.0048 (17) | −0.0022 (18) | −0.0015 (19) |
C29 | 0.0283 (17) | 0.0248 (19) | 0.026 (2) | −0.0061 (14) | −0.0016 (14) | 0.0050 (16) |
C30 | 0.0361 (19) | 0.036 (2) | 0.035 (2) | 0.0031 (15) | −0.0041 (16) | 0.0025 (18) |
C31 | 0.055 (2) | 0.043 (2) | 0.052 (3) | 0.010 (2) | −0.018 (2) | 0.014 (2) |
C32 | 0.064 (3) | 0.068 (3) | 0.032 (3) | −0.006 (2) | −0.013 (2) | 0.019 (2) |
C33 | 0.059 (2) | 0.070 (3) | 0.025 (2) | −0.003 (2) | 0.005 (2) | 0.007 (2) |
C34 | 0.041 (2) | 0.039 (2) | 0.032 (2) | 0.0016 (16) | −0.0012 (16) | 0.0034 (19) |
Cl1 | 0.0234 (4) | 0.0269 (5) | 0.0601 (7) | 0.0045 (3) | −0.0014 (4) | 0.0051 (4) |
P3 | 0.0207 (4) | 0.0218 (4) | 0.0234 (5) | 0.0006 (3) | 0.0003 (4) | 0.0009 (4) |
P5 | 0.0200 (4) | 0.0234 (4) | 0.0291 (5) | −0.0016 (3) | 0.0004 (4) | 0.0007 (4) |
Pd1 | 0.01932 (10) | 0.02174 (12) | 0.02506 (13) | 0.00082 (11) | −0.00015 (11) | 0.00017 (13) |
C1—C2 | 1.504 (5) | C18—C19 | 1.387 (5) |
C1—P5 | 1.860 (3) | C18—H18 | 0.9300 |
C1—H1A | 0.9700 | C19—C20 | 1.362 (5) |
C1—H1B | 0.9700 | C19—H19 | 0.9300 |
C2—C7 | 1.408 (5) | C20—C21 | 1.361 (6) |
C2—C3 | 1.410 (5) | C20—H20 | 0.9300 |
C3—C4 | 1.380 (5) | C21—C22 | 1.382 (6) |
C3—C8 | 1.517 (5) | C21—H21 | 0.9300 |
C4—C5 | 1.375 (5) | C22—H22 | 0.9300 |
C4—H4 | 0.9300 | C23—C24 | 1.396 (4) |
C5—C6 | 1.390 (5) | C23—C28 | 1.401 (5) |
C5—C9 | 1.521 (6) | C23—P3 | 1.810 (3) |
C6—C7 | 1.396 (5) | C24—C25 | 1.379 (5) |
C6—H6 | 0.9300 | C24—H24 | 0.9300 |
C7—C10 | 1.519 (5) | C25—C26 | 1.368 (6) |
C8—H8A | 0.9600 | C25—H25 | 0.9300 |
C8—H8B | 0.9600 | C26—C27 | 1.373 (6) |
C8—H8C | 0.9600 | C26—H26 | 0.9300 |
C9—H9A | 0.9600 | C27—C28 | 1.385 (5) |
C9—H9B | 0.9600 | C27—H27 | 0.9300 |
C9—H9C | 0.9600 | C28—H28 | 0.9300 |
C10—H10A | 0.9600 | C29—C34 | 1.388 (5) |
C10—H10B | 0.9600 | C29—C30 | 1.390 (4) |
C10—H10C | 0.9600 | C29—P3 | 1.817 (3) |
C11—C16 | 1.388 (5) | C30—C31 | 1.383 (5) |
C11—C12 | 1.397 (5) | C30—H30 | 0.9300 |
C11—P5 | 1.819 (3) | C31—C32 | 1.372 (6) |
C12—C13 | 1.391 (5) | C31—H31 | 0.9300 |
C12—H12 | 0.9300 | C32—C33 | 1.373 (6) |
C13—C14 | 1.372 (5) | C32—H32 | 0.9300 |
C13—H13 | 0.9300 | C33—C34 | 1.383 (5) |
C14—C15 | 1.383 (5) | C33—H33 | 0.9300 |
C14—H14 | 0.9300 | C34—H34 | 0.9300 |
C15—C16 | 1.385 (5) | Cl1—Pd1 | 2.3718 (8) |
C15—H15 | 0.9300 | P3—Pd1 | 2.2699 (8) |
C16—H16 | 0.9300 | P3—Pd1i | 2.3101 (8) |
C17—C18 | 1.383 (5) | P5—Pd1 | 2.3629 (8) |
C17—C22 | 1.383 (4) | Pd1—P3i | 2.3101 (8) |
C17—P5 | 1.819 (3) | ||
C2—C1—P5 | 113.5 (2) | C20—C19—C18 | 120.4 (4) |
C2—C1—H1A | 108.9 | C20—C19—H19 | 119.8 |
P5—C1—H1A | 108.9 | C18—C19—H19 | 119.8 |
C2—C1—H1B | 108.9 | C21—C20—C19 | 119.0 (4) |
P5—C1—H1B | 108.9 | C21—C20—H20 | 120.5 |
H1A—C1—H1B | 107.7 | C19—C20—H20 | 120.5 |
C7—C2—C3 | 118.7 (3) | C20—C21—C22 | 121.5 (4) |
C7—C2—C1 | 121.0 (3) | C20—C21—H21 | 119.2 |
C3—C2—C1 | 120.3 (3) | C22—C21—H21 | 119.2 |
C4—C3—C2 | 119.3 (4) | C21—C22—C17 | 120.1 (4) |
C4—C3—C8 | 119.4 (3) | C21—C22—H22 | 120.0 |
C2—C3—C8 | 121.3 (3) | C17—C22—H22 | 120.0 |
C5—C4—C3 | 122.8 (4) | C24—C23—C28 | 118.2 (3) |
C5—C4—H4 | 118.6 | C24—C23—P3 | 123.9 (3) |
C3—C4—H4 | 118.6 | C28—C23—P3 | 117.9 (3) |
C4—C5—C6 | 117.9 (4) | C25—C24—C23 | 120.9 (4) |
C4—C5—C9 | 120.0 (4) | C25—C24—H24 | 119.5 |
C6—C5—C9 | 122.1 (4) | C23—C24—H24 | 119.5 |
C5—C6—C7 | 121.6 (4) | C26—C25—C24 | 120.3 (4) |
C5—C6—H6 | 119.2 | C26—C25—H25 | 119.8 |
C7—C6—H6 | 119.2 | C24—C25—H25 | 119.8 |
C6—C7—C2 | 119.4 (3) | C25—C26—C27 | 119.8 (4) |
C6—C7—C10 | 119.6 (3) | C25—C26—H26 | 120.1 |
C2—C7—C10 | 121.0 (3) | C27—C26—H26 | 120.1 |
C3—C8—H8A | 109.5 | C26—C27—C28 | 121.0 (4) |
C3—C8—H8B | 109.5 | C26—C27—H27 | 119.5 |
H8A—C8—H8B | 109.5 | C28—C27—H27 | 119.5 |
C3—C8—H8C | 109.5 | C27—C28—C23 | 119.8 (4) |
H8A—C8—H8C | 109.5 | C27—C28—H28 | 120.1 |
H8B—C8—H8C | 109.5 | C23—C28—H28 | 120.1 |
C5—C9—H9A | 109.5 | C34—C29—C30 | 119.1 (3) |
C5—C9—H9B | 109.5 | C34—C29—P3 | 118.8 (3) |
H9A—C9—H9B | 109.5 | C30—C29—P3 | 121.9 (3) |
C5—C9—H9C | 109.5 | C31—C30—C29 | 119.4 (4) |
H9A—C9—H9C | 109.5 | C31—C30—H30 | 120.3 |
H9B—C9—H9C | 109.5 | C29—C30—H30 | 120.3 |
C7—C10—H10A | 109.5 | C32—C31—C30 | 120.9 (4) |
C7—C10—H10B | 109.5 | C32—C31—H31 | 119.5 |
H10A—C10—H10B | 109.5 | C30—C31—H31 | 119.5 |
C7—C10—H10C | 109.5 | C31—C32—C33 | 120.2 (4) |
H10A—C10—H10C | 109.5 | C31—C32—H32 | 119.9 |
H10B—C10—H10C | 109.5 | C33—C32—H32 | 119.9 |
C16—C11—C12 | 118.6 (3) | C32—C33—C34 | 119.4 (4) |
C16—C11—P5 | 117.9 (3) | C32—C33—H33 | 120.3 |
C12—C11—P5 | 123.5 (3) | C34—C33—H33 | 120.3 |
C13—C12—C11 | 120.0 (3) | C33—C34—C29 | 120.9 (4) |
C13—C12—H12 | 120.0 | C33—C34—H34 | 119.5 |
C11—C12—H12 | 120.0 | C29—C34—H34 | 119.5 |
C14—C13—C12 | 120.5 (3) | C23—P3—C29 | 108.87 (16) |
C14—C13—H13 | 119.7 | C23—P3—Pd1 | 113.18 (10) |
C12—C13—H13 | 119.7 | C29—P3—Pd1 | 115.42 (11) |
C13—C14—C15 | 120.1 (4) | C23—P3—Pd1i | 110.50 (10) |
C13—C14—H14 | 120.0 | C29—P3—Pd1i | 104.28 (10) |
C15—C14—H14 | 120.0 | Pd1—P3—Pd1i | 104.08 (3) |
C14—C15—C16 | 119.7 (4) | C11—P5—C17 | 105.36 (15) |
C14—C15—H15 | 120.2 | C11—P5—C1 | 105.35 (15) |
C16—C15—H15 | 120.2 | C17—P5—C1 | 107.13 (15) |
C15—C16—C11 | 121.1 (3) | C11—P5—Pd1 | 120.04 (10) |
C15—C16—H16 | 119.5 | C17—P5—Pd1 | 105.25 (10) |
C11—C16—H16 | 119.5 | C1—P5—Pd1 | 112.86 (11) |
C18—C17—C22 | 118.0 (3) | P3—Pd1—P3i | 75.55 (3) |
C18—C17—P5 | 117.4 (2) | P3—Pd1—P5 | 104.26 (3) |
C22—C17—P5 | 124.5 (3) | P3i—Pd1—P5 | 179.37 (4) |
C17—C18—C19 | 121.0 (3) | P3—Pd1—Cl1 | 167.50 (3) |
C17—C18—H18 | 119.5 | P3i—Pd1—Cl1 | 93.37 (3) |
C19—C18—H18 | 119.5 | P5—Pd1—Cl1 | 86.87 (3) |
P5—C1—C2—C7 | 85.3 (3) | C31—C32—C33—C34 | 1.2 (6) |
P5—C1—C2—C3 | −92.2 (3) | C32—C33—C34—C29 | −1.1 (6) |
C7—C2—C3—C4 | −4.9 (5) | C30—C29—C34—C33 | −0.3 (5) |
C1—C2—C3—C4 | 172.6 (3) | P3—C29—C34—C33 | −174.6 (3) |
C7—C2—C3—C8 | 175.6 (3) | C24—C23—P3—C29 | 31.2 (3) |
C1—C2—C3—C8 | −6.9 (5) | C28—C23—P3—C29 | −150.5 (2) |
C2—C3—C4—C5 | 0.0 (5) | C24—C23—P3—Pd1 | −98.5 (3) |
C8—C3—C4—C5 | 179.5 (3) | C28—C23—P3—Pd1 | 79.7 (2) |
C3—C4—C5—C6 | 4.3 (6) | C24—C23—P3—Pd1i | 145.2 (2) |
C3—C4—C5—C9 | −175.6 (4) | C28—C23—P3—Pd1i | −36.6 (3) |
C4—C5—C6—C7 | −3.7 (6) | C34—C29—P3—C23 | −149.4 (3) |
C9—C5—C6—C7 | 176.2 (4) | C30—C29—P3—C23 | 36.5 (3) |
C5—C6—C7—C2 | −1.1 (5) | C34—C29—P3—Pd1 | −20.9 (3) |
C5—C6—C7—C10 | 178.6 (3) | C30—C29—P3—Pd1 | 165.0 (2) |
C3—C2—C7—C6 | 5.5 (5) | C34—C29—P3—Pd1i | 92.6 (3) |
C1—C2—C7—C6 | −172.1 (3) | C30—C29—P3—Pd1i | −81.5 (3) |
C3—C2—C7—C10 | −174.2 (3) | C16—C11—P5—C17 | 173.5 (2) |
C1—C2—C7—C10 | 8.3 (5) | C12—C11—P5—C17 | −5.0 (3) |
C16—C11—C12—C13 | −0.8 (5) | C16—C11—P5—C1 | −73.4 (3) |
P5—C11—C12—C13 | 177.6 (2) | C12—C11—P5—C1 | 108.1 (3) |
C11—C12—C13—C14 | −1.2 (5) | C16—C11—P5—Pd1 | 55.2 (3) |
C12—C13—C14—C15 | 2.5 (5) | C12—C11—P5—Pd1 | −123.2 (2) |
C13—C14—C15—C16 | −1.8 (5) | C18—C17—P5—C11 | −83.7 (3) |
C14—C15—C16—C11 | −0.3 (5) | C22—C17—P5—C11 | 100.0 (3) |
C12—C11—C16—C15 | 1.5 (4) | C18—C17—P5—C1 | 164.5 (3) |
P5—C11—C16—C15 | −177.0 (2) | C22—C17—P5—C1 | −11.8 (3) |
C22—C17—C18—C19 | −0.6 (5) | C18—C17—P5—Pd1 | 44.1 (3) |
P5—C17—C18—C19 | −177.1 (3) | C22—C17—P5—Pd1 | −132.2 (3) |
C17—C18—C19—C20 | 0.9 (6) | C2—C1—P5—C11 | 40.5 (3) |
C18—C19—C20—C21 | −0.5 (6) | C2—C1—P5—C17 | 152.3 (2) |
C19—C20—C21—C22 | −0.2 (7) | C2—C1—P5—Pd1 | −92.3 (2) |
C20—C21—C22—C17 | 0.5 (7) | C23—P3—Pd1—P3i | −126.54 (12) |
C18—C17—C22—C21 | −0.1 (6) | C29—P3—Pd1—P3i | 107.09 (11) |
P5—C17—C22—C21 | 176.2 (3) | Pd1i—P3—Pd1—P3i | −6.53 (5) |
C28—C23—C24—C25 | 0.0 (5) | C23—P3—Pd1—P5 | 54.08 (13) |
P3—C23—C24—C25 | 178.3 (3) | C29—P3—Pd1—P5 | −72.29 (12) |
C23—C24—C25—C26 | −0.4 (6) | Pd1i—P3—Pd1—P5 | 174.09 (3) |
C24—C25—C26—C27 | 0.5 (6) | C23—P3—Pd1—Cl1 | −98.4 (2) |
C25—C26—C27—C28 | −0.1 (6) | C29—P3—Pd1—Cl1 | 135.22 (18) |
C26—C27—C28—C23 | −0.3 (6) | Pd1i—P3—Pd1—Cl1 | 21.60 (18) |
C24—C23—C28—C27 | 0.4 (5) | C11—P5—Pd1—P3 | 11.84 (14) |
P3—C23—C28—C27 | −178.0 (3) | C17—P5—Pd1—P3 | −106.51 (11) |
C34—C29—C30—C31 | 1.5 (5) | C1—P5—Pd1—P3 | 136.98 (12) |
P3—C29—C30—C31 | 175.6 (3) | C11—P5—Pd1—Cl1 | −173.91 (14) |
C29—C30—C31—C32 | −1.4 (6) | C17—P5—Pd1—Cl1 | 67.74 (11) |
C30—C31—C32—C33 | 0.0 (6) | C1—P5—Pd1—Cl1 | −48.76 (12) |
Symmetry code: (i) −x+3/2, −y+3/2, z. |
Experimental details
Crystal data | |
Chemical formula | [Pd2(C12H10P)2Cl2(C22H23P)2] |
Mr | 1290.83 |
Crystal system, space group | Orthorhombic, Pccn |
Temperature (K) | 173 |
a, b, c (Å) | 12.0793 (7), 22.6156 (14), 22.5499 (14) |
V (Å3) | 6160.2 (6) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.81 |
Crystal size (mm) | 0.31 × 0.24 × 0.17 |
Data collection | |
Diffractometer | Stoe IPDS |
Absorption correction | – |
No. of measured, independent and observed [I > 2σ(I)] reflections | 46413, 6011, 3498 |
Rint | 0.089 |
(sin θ/λ)max (Å−1) | 0.616 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.031, 0.064, 0.78 |
No. of reflections | 6011 |
No. of parameters | 346 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.53, −0.98 |
Computer programs: EXPOSE in IPDS Software (Stoe & Cie, 2000), CELL in IPDS Software, INTEGRATE in IPDS Software, SHELXS97 (Sheldrick, 1997), SHELXL97 (Sheldrick, 1997), ORTEP-3 (Farrugia, 1997) and Mercury (Version 1.4.1; Bruno et al., 2002), SHELXL97.
The title compound, [PdCl(µ2-PPh2){PPh2CH2(2,4,6-Me3C6H2)}]2, (I), is prepared in a similar manner as the isoelectronic dinuclear palladium complex [PdCl(µ2-PPh2)(PPh3)]2 (Brandon & Dixon, 1981). The triphenylphosphine being replaced by (mesithylmethyl)(diphenyl)phosphine (Chahen et al., 2006). The 31P{1H} NMR spectrum gives rise to two multiplets centred at 7.5 and -142.6 p.p.m. respectively. The signals are consistent with an AA'BB' spin system (Brandon & Dixon, 1981). The molecular structure of (I) shows the palladium atoms to be surrounded by two phosphido-bridged ligands, a chloride, and a PPh2CH2(2,4,6-Me3C6H2) ligand. The complex adopts the trans-symmetrical isomer, see scheme.
The two halves of the dinuclear complex are related by a crystallography twofold rotation axis, see Fig. 1. The Pd atoms are in a slightly distorted square-planar geometry. The plane formed by the palladium, the chloride and the three P atoms is mainly planar, with a maximum deviation from the mean plane of 0.0770 (4)Å for one bridging P atom. However, the angle between the two square-planar units is 12.63 (1)°, giving rise to a slightly bent conformation for the dimeric unit, see Fig. 2. Otherwise, the bond distances and angles are similar to those found in [PtCl(µ2-PPh2)(HPPh2)]2 (Carty et al., 1982), [PdCl(µ2-PPh2)(HPPh2)]2 (Gebauer et al., 1992) and [PdI(µ2-PPh2)(HPPh2)]2 (Zhuravel et al., 2000).