Supporting information
Crystallographic Information File (CIF) https://doi.org/10.1107/S1600536807059405/su2024sup1.cif | |
Structure factor file (CIF format) https://doi.org/10.1107/S1600536807059405/su2024Isup2.hkl |
CCDC reference: 672710
To an orange suspension of 0.709 g (1.89 mmol) of [Pd(Br)2(cod)] (cod=cycloocta-1,5-diene) in 15 ml of tetrahydrofurane, 1.077 g (3.80 mmol, 2.01 equiv.) of P(NC5H10)3 (dissolved in 10 ml of tetrahydrofurane) was added and stirred for 5 minutes at room temperature, which quantitatively yielded the dibromo-(bis(1,1',1''-(phosphinetriyl)tripiperidine))palladium [Pd(Br)2{P(NC5H10)3}2] complex. To a toluene solution (10 ml) of 262.8 mg (0.32 mmol) of [Pd(Br)2{P(NC5H10)3}2], 36.0 mg (0.33 mmol, 1.01 equiv.) of resorcinol was added. The reaction mixture was placed in an oil bath and heated up to 80°C for 15 minutes, during which the solution decolorized. The solvent was removed under reduced pressure, and the solid was extracted with 20 ml of diethyl ether. After removal of the solvent in vacuo, 161.5 mg (0.24 mmol, 74%) of [Pd(Br){C6H3(OP(piperidinyl)2)2}] (I) was obtained as colorless powder.
Colorless crystals of the title compound (I) were obtained by slow evaporation of the solvent from a saturated diethyl ether solution at room temperature within three weeks.
31P{1H}-NMR (C6D6; δ, p.p.m.): 147.6 (s, P(NC5H10)2).
1H NMR (C6D6; δ,p.p.m.): 6.96 (t, 3JHH = 8.0 Hz, 1H, Arpara), 6.63 (d, 3JHH = 8.0 Hz, 2H, Armeta), 3.27 (m, 16H, NCH2), 1.41 (m, 16H, NCH2CH2),1.27 (m, 8H, NCH2CH2CH2).
13C{1H} NMR (C6D6; δ, p.p.m.): 160.9 (vt, JPC = 10.2 Hz, ArOP), 129.3 (s, Arpara), 126.9 (unresolved t, Aripso), 106.4 (vt, JPC = 8.4 Hz, Armeta), 46.7 (vt, 2JPC = 4JPC = 4.1, NCH2), 26.6 (s, NCH2CH2), 24.9 (s, NCH2CH2CH2). The assignmentof the 1H and 13C{1H} NMR signals was confirmed by COSY and 13C{1H}DEPT experiments.
Elemental Analysis: Calc. for C26H43BrN4O2P2Pd: C, 45.13; H, 6.26; N, 8.10. Found: C, 45.08; H, 6.35; N, 8.13.
All hydrogen atoms were included at calculated positions and treated as riding atoms with C—H distances of 0.93–0.97 Å and Uiso(H) = 1.3Ueq(C)].
Data collection: IPDS Software (Stoe & Cie, 1999); cell refinement: IPDS Software (Stoe & Cie, 1999); data reduction: IPDS Software (Stoe & Cie, 1999); program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: ORTEP-3 for Windows (Farrugia, 1997); software used to prepare material for publication: WinGX (Farrugia, 1999) and SHELXL97 (Sheldrick, 1997).
Fig. 1. The molecular structure of (I) with the atom-labeling scheme (30% probability displacement ellipsoids). |
[PdBr(C26H43N4O2P2)] | Z = 2 |
Mr = 691.9 | F(000) = 708 |
Triclinic, P1 | Dx = 1.522 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 9.8843 (15) Å | Cell parameters from 8000 reflections |
b = 12.3457 (19) Å | θ = 3.1–30.2° |
c = 13.815 (2) Å | µ = 2.07 mm−1 |
α = 76.635 (18)° | T = 183 K |
β = 70.676 (17)° | Plate, colourless |
γ = 73.847 (17)° | 0.33 × 0.32 × 0.12 mm |
V = 1510.0 (4) Å3 |
Stoe IPDS diffractometer | 4431 reflections with I > 2σ(I) |
ϕ oscillation scans | Rint = 0.056 |
Absorption correction: numerical (Coppens et al., 1965) | θmax = 25°, θmin = 3.1° |
Tmin = 0.568, Tmax = 0.797 | h = −11→11 |
19696 measured reflections | k = −14→14 |
4989 independent reflections | l = −16→16 |
Refinement on F2 | 0 restraints |
Least-squares matrix: full | H-atom parameters constrained |
R[F2 > 2σ(F2)] = 0.024 | w = 1/[σ2(Fo2) + (0.0407P)2 + 0.1788P] where P = (Fo2 + 2Fc2)/3 |
wR(F2) = 0.065 | (Δ/σ)max = 0.001 |
S = 1.02 | Δρmax = 0.71 e Å−3 |
4989 reflections | Δρmin = −0.37 e Å−3 |
325 parameters |
[PdBr(C26H43N4O2P2)] | γ = 73.847 (17)° |
Mr = 691.9 | V = 1510.0 (4) Å3 |
Triclinic, P1 | Z = 2 |
a = 9.8843 (15) Å | Mo Kα radiation |
b = 12.3457 (19) Å | µ = 2.07 mm−1 |
c = 13.815 (2) Å | T = 183 K |
α = 76.635 (18)° | 0.33 × 0.32 × 0.12 mm |
β = 70.676 (17)° |
Stoe IPDS diffractometer | 4989 independent reflections |
Absorption correction: numerical (Coppens et al., 1965) | 4431 reflections with I > 2σ(I) |
Tmin = 0.568, Tmax = 0.797 | Rint = 0.056 |
19696 measured reflections |
R[F2 > 2σ(F2)] = 0.024 | 0 restraints |
wR(F2) = 0.065 | H-atom parameters constrained |
S = 1.02 | Δρmax = 0.71 e Å−3 |
4989 reflections | Δρmin = −0.37 e Å−3 |
325 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 | ||
Pd1 | 0.595039 (18) | 0.296726 (15) | 0.253679 (13) | 0.02177 (7) | |
Br1 | 0.37214 (3) | 0.32621 (3) | 0.40672 (2) | 0.03958 (9) | |
P1 | 0.59392 (7) | 0.11866 (5) | 0.23383 (5) | 0.02443 (14) | |
P2 | 0.67472 (7) | 0.45960 (5) | 0.23525 (4) | 0.02443 (14) | |
C1 | 0.7721 (3) | 0.2712 (2) | 0.13281 (17) | 0.0232 (5) | |
C2 | 0.8616 (3) | 0.3495 (2) | 0.09128 (18) | 0.0266 (5) | |
C3 | 0.9860 (3) | 0.3337 (2) | 0.0074 (2) | 0.0332 (6) | |
H3 | 1.0454 | 0.3866 | −0.0178 | 0.043* | |
C4 | 1.0193 (3) | 0.2369 (2) | −0.0377 (2) | 0.0344 (6) | |
H4 | 1.1021 | 0.2252 | −0.0943 | 0.045* | |
C5 | 0.9317 (3) | 0.1564 (2) | −0.00032 (19) | 0.0302 (5) | |
H5 | 0.9542 | 0.0922 | −0.0319 | 0.039* | |
C6 | 0.8106 (3) | 0.1747 (2) | 0.08503 (17) | 0.0238 (5) | |
O1 | 0.72162 (19) | 0.09514 (15) | 0.12318 (13) | 0.0288 (4) | |
O2 | 0.8238 (2) | 0.44822 (15) | 0.13463 (13) | 0.0334 (4) | |
N1 | 0.4599 (2) | 0.07942 (19) | 0.21028 (15) | 0.0307 (5) | |
C7 | 0.4193 (3) | 0.1359 (3) | 0.1142 (2) | 0.0449 (8) | |
H7A | 0.5074 | 0.1394 | 0.0565 | 0.058* | |
H7B | 0.364 | 0.2133 | 0.1218 | 0.058* | |
C8 | 0.3280 (4) | 0.0702 (5) | 0.0927 (3) | 0.0780 (14) | |
H8A | 0.3862 | −0.0054 | 0.0807 | 0.101* | |
H8B | 0.3 | 0.1085 | 0.0302 | 0.101* | |
C9 | 0.1899 (4) | 0.0598 (4) | 0.1828 (3) | 0.0644 (11) | |
H9A | 0.1253 | 0.1345 | 0.1897 | 0.084* | |
H9B | 0.1377 | 0.0115 | 0.1695 | 0.084* | |
C10 | 0.2330 (4) | 0.0087 (3) | 0.2823 (3) | 0.0585 (9) | |
H10A | 0.145 | 0.0094 | 0.3406 | 0.076* | |
H10B | 0.2853 | −0.0701 | 0.2787 | 0.076* | |
C11 | 0.3273 (4) | 0.0728 (4) | 0.2992 (2) | 0.0551 (9) | |
H11A | 0.2714 | 0.1494 | 0.3099 | 0.072* | |
H11B | 0.3565 | 0.0357 | 0.3614 | 0.072* | |
N2 | 0.6376 (2) | 0.01734 (18) | 0.32605 (16) | 0.0306 (5) | |
C12 | 0.6752 (3) | 0.0430 (3) | 0.41152 (19) | 0.0321 (6) | |
H12A | 0.6247 | 0.0029 | 0.4768 | 0.042* | |
H12B | 0.6422 | 0.1242 | 0.4145 | 0.042* | |
C13 | 0.8394 (3) | 0.0077 (2) | 0.3971 (2) | 0.0340 (6) | |
H13A | 0.8605 | 0.0202 | 0.4569 | 0.044* | |
H13B | 0.8892 | 0.0544 | 0.3362 | 0.044* | |
C14 | 0.8968 (3) | −0.1179 (3) | 0.3840 (2) | 0.0432 (7) | |
H14A | 1.0029 | −0.1373 | 0.3691 | 0.056* | |
H14B | 0.8563 | −0.1652 | 0.4481 | 0.056* | |
C15 | 0.8537 (4) | −0.1412 (3) | 0.2961 (3) | 0.0448 (7) | |
H15A | 0.8843 | −0.2222 | 0.2921 | 0.058* | |
H15B | 0.904 | −0.1009 | 0.2308 | 0.058* | |
C16 | 0.6882 (3) | −0.1029 (2) | 0.3126 (2) | 0.0424 (7) | |
H16A | 0.6644 | −0.1136 | 0.2533 | 0.055* | |
H16B | 0.6382 | −0.1493 | 0.3736 | 0.055* | |
N3 | 0.5935 (3) | 0.59172 (19) | 0.19468 (17) | 0.0358 (5) | |
C17 | 0.5694 (4) | 0.6169 (3) | 0.0915 (2) | 0.0574 (9) | |
H17A | 0.6409 | 0.5631 | 0.0482 | 0.075* | |
H17B | 0.5839 | 0.6929 | 0.0591 | 0.075* | |
C18 | 0.4161 (5) | 0.6095 (4) | 0.0985 (3) | 0.0741 (13) | |
H18A | 0.4058 | 0.5311 | 0.1227 | 0.096* | |
H18B | 0.4016 | 0.6318 | 0.0299 | 0.096* | |
C19 | 0.2992 (4) | 0.6858 (4) | 0.1717 (3) | 0.0727 (12) | |
H19A | 0.3011 | 0.7651 | 0.1433 | 0.095* | |
H19B | 0.2029 | 0.6746 | 0.1786 | 0.095* | |
C20 | 0.3262 (4) | 0.6582 (3) | 0.2774 (3) | 0.0606 (9) | |
H20A | 0.3103 | 0.5825 | 0.3099 | 0.079* | |
H20B | 0.2571 | 0.7124 | 0.3213 | 0.079* | |
C21 | 0.4819 (4) | 0.6631 (3) | 0.2676 (2) | 0.0458 (7) | |
H21A | 0.4924 | 0.7416 | 0.2448 | 0.06* | |
H21B | 0.4988 | 0.6387 | 0.3354 | 0.06* | |
N4 | 0.7223 (2) | 0.47366 (18) | 0.33326 (16) | 0.0297 (5) | |
C22 | 0.7178 (3) | 0.3868 (2) | 0.4260 (2) | 0.0388 (7) | |
H22A | 0.6579 | 0.3358 | 0.4275 | 0.05* | |
H22B | 0.6726 | 0.4235 | 0.4874 | 0.05* | |
C23 | 0.8690 (4) | 0.3190 (3) | 0.4275 (3) | 0.0586 (9) | |
H23A | 0.9121 | 0.2775 | 0.3689 | 0.076* | |
H23B | 0.8633 | 0.264 | 0.4907 | 0.076* | |
C24 | 0.9645 (4) | 0.3990 (4) | 0.4220 (4) | 0.0800 (14) | |
H24A | 1.0637 | 0.3558 | 0.4189 | 0.104* | |
H24B | 0.9263 | 0.4347 | 0.4841 | 0.104* | |
C25 | 0.9672 (4) | 0.4908 (4) | 0.3267 (3) | 0.0702 (11) | |
H25A | 1.0222 | 0.5443 | 0.3275 | 0.091* | |
H25B | 1.0167 | 0.4557 | 0.2645 | 0.091* | |
C26 | 0.8136 (3) | 0.5542 (3) | 0.3239 (2) | 0.0428 (7) | |
H26A | 0.769 | 0.5986 | 0.3805 | 0.056* | |
H26B | 0.8181 | 0.6065 | 0.2592 | 0.056* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Pd1 | 0.01969 (10) | 0.02554 (12) | 0.01935 (10) | −0.00848 (8) | −0.00401 (7) | −0.00008 (7) |
Br1 | 0.02724 (14) | 0.04573 (19) | 0.03679 (16) | −0.01067 (13) | 0.00621 (11) | −0.00854 (12) |
P1 | 0.0256 (3) | 0.0282 (3) | 0.0210 (3) | −0.0126 (3) | −0.0072 (2) | 0.0025 (2) |
P2 | 0.0274 (3) | 0.0246 (3) | 0.0212 (3) | −0.0093 (3) | −0.0055 (2) | −0.0010 (2) |
C1 | 0.0224 (11) | 0.0271 (13) | 0.0203 (11) | −0.0068 (10) | −0.0082 (9) | 0.0003 (9) |
C2 | 0.0281 (12) | 0.0269 (13) | 0.0241 (12) | −0.0088 (11) | −0.0062 (10) | −0.0008 (10) |
C3 | 0.0313 (13) | 0.0365 (15) | 0.0299 (13) | −0.0170 (12) | −0.0014 (11) | −0.0006 (11) |
C4 | 0.0280 (13) | 0.0405 (16) | 0.0271 (13) | −0.0089 (13) | 0.0012 (10) | −0.0024 (11) |
C5 | 0.0341 (13) | 0.0303 (14) | 0.0234 (12) | −0.0066 (12) | −0.0052 (10) | −0.0039 (10) |
C6 | 0.0251 (11) | 0.0252 (13) | 0.0201 (11) | −0.0079 (10) | −0.0077 (9) | 0.0032 (9) |
O1 | 0.0328 (9) | 0.0291 (10) | 0.0252 (8) | −0.0143 (8) | −0.0041 (7) | −0.0026 (7) |
O2 | 0.0353 (10) | 0.0318 (10) | 0.0307 (9) | −0.0190 (9) | 0.0050 (8) | −0.0073 (7) |
N1 | 0.0331 (11) | 0.0415 (13) | 0.0233 (10) | −0.0206 (10) | −0.0130 (9) | 0.0060 (9) |
C7 | 0.0425 (16) | 0.066 (2) | 0.0253 (14) | −0.0202 (15) | −0.0163 (12) | 0.0139 (13) |
C8 | 0.062 (2) | 0.148 (4) | 0.0414 (19) | −0.045 (3) | −0.0186 (17) | −0.015 (2) |
C9 | 0.0439 (18) | 0.113 (3) | 0.0499 (19) | −0.034 (2) | −0.0188 (15) | −0.010 (2) |
C10 | 0.0436 (17) | 0.080 (3) | 0.057 (2) | −0.0337 (19) | −0.0175 (16) | 0.0076 (18) |
C11 | 0.0447 (17) | 0.100 (3) | 0.0267 (15) | −0.0359 (19) | −0.0106 (13) | 0.0033 (15) |
N2 | 0.0343 (11) | 0.0334 (12) | 0.0278 (11) | −0.0147 (10) | −0.0152 (9) | 0.0068 (9) |
C12 | 0.0277 (12) | 0.0469 (16) | 0.0203 (12) | −0.0093 (12) | −0.0078 (10) | 0.0002 (10) |
C13 | 0.0291 (13) | 0.0451 (17) | 0.0317 (13) | −0.0132 (13) | −0.0128 (11) | −0.0009 (11) |
C14 | 0.0326 (14) | 0.0423 (18) | 0.0515 (18) | −0.0083 (14) | −0.0169 (13) | 0.0062 (14) |
C15 | 0.0546 (18) | 0.0266 (15) | 0.0528 (18) | −0.0091 (15) | −0.0173 (15) | −0.0020 (13) |
C16 | 0.0568 (18) | 0.0317 (15) | 0.0480 (17) | −0.0222 (15) | −0.0279 (15) | 0.0106 (12) |
N3 | 0.0479 (13) | 0.0310 (13) | 0.0253 (11) | −0.0048 (11) | −0.0132 (10) | 0.0012 (9) |
C17 | 0.086 (3) | 0.052 (2) | 0.0294 (16) | −0.0068 (19) | −0.0281 (17) | 0.0096 (14) |
C18 | 0.110 (3) | 0.064 (2) | 0.069 (3) | −0.012 (3) | −0.068 (3) | 0.004 (2) |
C19 | 0.064 (2) | 0.064 (3) | 0.092 (3) | −0.007 (2) | −0.050 (2) | 0.017 (2) |
C20 | 0.0463 (18) | 0.053 (2) | 0.066 (2) | 0.0032 (18) | −0.0169 (17) | 0.0070 (18) |
C21 | 0.0547 (18) | 0.0347 (17) | 0.0434 (17) | 0.0031 (15) | −0.0182 (15) | −0.0063 (13) |
N4 | 0.0347 (11) | 0.0320 (12) | 0.0272 (10) | −0.0135 (10) | −0.0127 (9) | −0.0001 (9) |
C22 | 0.0485 (16) | 0.0446 (17) | 0.0303 (14) | −0.0199 (14) | −0.0188 (13) | 0.0043 (12) |
C23 | 0.064 (2) | 0.047 (2) | 0.072 (2) | −0.0073 (18) | −0.044 (2) | 0.0058 (17) |
C24 | 0.057 (2) | 0.092 (3) | 0.106 (3) | −0.024 (2) | −0.055 (2) | 0.013 (3) |
C25 | 0.045 (2) | 0.095 (3) | 0.085 (3) | −0.038 (2) | −0.0196 (19) | −0.013 (2) |
C26 | 0.0592 (19) | 0.0417 (17) | 0.0395 (15) | −0.0290 (16) | −0.0175 (14) | −0.0022 (12) |
Pd1—C1 | 1.988 (2) | C13—H13A | 0.9700 |
Pd1—P1 | 2.2808 (7) | C13—H13B | 0.9700 |
Pd1—P2 | 2.2891 (7) | C14—C15 | 1.521 (4) |
Pd1—Br1 | 2.5066 (7) | C14—H14A | 0.9700 |
P1—N2 | 1.643 (2) | C14—H14B | 0.9700 |
P1—O1 | 1.6549 (19) | C15—C16 | 1.524 (4) |
P1—N1 | 1.6762 (18) | C15—H15A | 0.9700 |
P2—N4 | 1.631 (2) | C15—H15B | 0.9700 |
P2—O2 | 1.6563 (19) | C16—H16A | 0.9700 |
P2—N3 | 1.663 (2) | C16—H16B | 0.9700 |
C1—C2 | 1.388 (3) | N3—C21 | 1.464 (4) |
C1—C6 | 1.395 (3) | N3—C17 | 1.471 (3) |
C2—O2 | 1.386 (3) | C17—C18 | 1.514 (6) |
C2—C3 | 1.386 (4) | C17—H17A | 0.9700 |
C3—C4 | 1.384 (4) | C17—H17B | 0.9700 |
C3—H3 | 0.9300 | C18—C19 | 1.519 (6) |
C4—C5 | 1.397 (4) | C18—H18A | 0.9700 |
C4—H4 | 0.9300 | C18—H18B | 0.9700 |
C5—C6 | 1.383 (4) | C19—C20 | 1.516 (5) |
C5—H5 | 0.9300 | C19—H19A | 0.9700 |
C6—O1 | 1.397 (3) | C19—H19B | 0.9700 |
N1—C7 | 1.476 (3) | C20—C21 | 1.517 (5) |
N1—C11 | 1.478 (4) | C20—H20A | 0.9700 |
C7—C8 | 1.502 (5) | C20—H20B | 0.9700 |
C7—H7A | 0.9700 | C21—H21A | 0.9700 |
C7—H7B | 0.9700 | C21—H21B | 0.9700 |
C8—C9 | 1.526 (5) | N4—C22 | 1.465 (3) |
C8—H8A | 0.9700 | N4—C26 | 1.477 (3) |
C8—H8B | 0.9700 | C22—C23 | 1.500 (4) |
C9—C10 | 1.519 (5) | C22—H22A | 0.9700 |
C9—H9A | 0.9700 | C22—H22B | 0.9700 |
C9—H9B | 0.9700 | C23—C24 | 1.520 (5) |
C10—C11 | 1.479 (4) | C23—H23A | 0.9700 |
C10—H10A | 0.9700 | C23—H23B | 0.9700 |
C10—H10B | 0.9700 | C24—C25 | 1.524 (6) |
C11—H11A | 0.9700 | C24—H24A | 0.9700 |
C11—H11B | 0.9700 | C24—H24B | 0.9700 |
N2—C16 | 1.464 (4) | C25—C26 | 1.511 (5) |
N2—C12 | 1.470 (3) | C25—H25A | 0.9700 |
C12—C13 | 1.515 (3) | C25—H25B | 0.9700 |
C12—H12A | 0.9700 | C26—H26A | 0.9700 |
C12—H12B | 0.9700 | C26—H26B | 0.9700 |
C13—C14 | 1.527 (4) | ||
C1—Pd1—P1 | 80.14 (7) | H13A—C13—H13B | 108.1 |
C1—Pd1—P2 | 80.63 (7) | C15—C14—C13 | 110.3 (2) |
P1—Pd1—P2 | 160.31 (3) | C15—C14—H14A | 109.6 |
C1—Pd1—Br1 | 179.28 (7) | C13—C14—H14A | 109.6 |
P1—Pd1—Br1 | 99.20 (3) | C15—C14—H14B | 109.6 |
P2—Pd1—Br1 | 100.00 (3) | C13—C14—H14B | 109.6 |
N2—P1—O1 | 108.07 (11) | H14A—C14—H14B | 108.1 |
N2—P1—N1 | 103.23 (10) | C14—C15—C16 | 111.1 (3) |
O1—P1—N1 | 97.66 (10) | C14—C15—H15A | 109.4 |
N2—P1—Pd1 | 113.99 (8) | C16—C15—H15A | 109.4 |
O1—P1—Pd1 | 104.72 (6) | C14—C15—H15B | 109.4 |
N1—P1—Pd1 | 126.94 (9) | C16—C15—H15B | 109.4 |
N4—P2—O2 | 107.57 (10) | H15A—C15—H15B | 108.0 |
N4—P2—N3 | 103.59 (11) | N2—C16—C15 | 110.5 (2) |
O2—P2—N3 | 97.15 (11) | N2—C16—H16A | 109.5 |
N4—P2—Pd1 | 115.52 (8) | C15—C16—H16A | 109.5 |
O2—P2—Pd1 | 103.76 (7) | N2—C16—H16B | 109.5 |
N3—P2—Pd1 | 126.50 (8) | C15—C16—H16B | 109.5 |
C2—C1—C6 | 117.1 (2) | H16A—C16—H16B | 108.1 |
C2—C1—Pd1 | 121.52 (19) | C21—N3—C17 | 112.6 (2) |
C6—C1—Pd1 | 121.40 (16) | C21—N3—P2 | 121.29 (18) |
O2—C2—C3 | 118.6 (2) | C17—N3—P2 | 118.4 (2) |
O2—C2—C1 | 118.6 (2) | N3—C17—C18 | 111.5 (3) |
C3—C2—C1 | 122.8 (2) | N3—C17—H17A | 109.3 |
C4—C3—C2 | 118.0 (2) | C18—C17—H17A | 109.3 |
C4—C3—H3 | 121.0 | N3—C17—H17B | 109.3 |
C2—C3—H3 | 121.0 | C18—C17—H17B | 109.3 |
C3—C4—C5 | 121.6 (2) | H17A—C17—H17B | 108.0 |
C3—C4—H4 | 119.2 | C17—C18—C19 | 111.7 (3) |
C5—C4—H4 | 119.2 | C17—C18—H18A | 109.3 |
C6—C5—C4 | 118.1 (2) | C19—C18—H18A | 109.3 |
C6—C5—H5 | 120.9 | C17—C18—H18B | 109.3 |
C4—C5—H5 | 120.9 | C19—C18—H18B | 109.3 |
C5—C6—C1 | 122.4 (2) | H18A—C18—H18B | 107.9 |
C5—C6—O1 | 118.8 (2) | C20—C19—C18 | 110.2 (3) |
C1—C6—O1 | 118.8 (2) | C20—C19—H19A | 109.6 |
C6—O1—P1 | 113.66 (15) | C18—C19—H19A | 109.6 |
C2—O2—P2 | 115.47 (14) | C20—C19—H19B | 109.6 |
C7—N1—C11 | 110.7 (2) | C18—C19—H19B | 109.6 |
C7—N1—P1 | 117.55 (17) | H19A—C19—H19B | 108.1 |
C11—N1—P1 | 115.22 (17) | C19—C20—C21 | 110.7 (3) |
N1—C7—C8 | 109.6 (3) | C19—C20—H20A | 109.5 |
N1—C7—H7A | 109.8 | C21—C20—H20A | 109.5 |
C8—C7—H7A | 109.8 | C19—C20—H20B | 109.5 |
N1—C7—H7B | 109.8 | C21—C20—H20B | 109.5 |
C8—C7—H7B | 109.8 | H20A—C20—H20B | 108.1 |
H7A—C7—H7B | 108.2 | N3—C21—C20 | 113.2 (3) |
C7—C8—C9 | 111.6 (3) | N3—C21—H21A | 108.9 |
C7—C8—H8A | 109.3 | C20—C21—H21A | 108.9 |
C9—C8—H8A | 109.3 | N3—C21—H21B | 108.9 |
C7—C8—H8B | 109.3 | C20—C21—H21B | 108.9 |
C9—C8—H8B | 109.3 | H21A—C21—H21B | 107.8 |
H8A—C8—H8B | 108.0 | C22—N4—C26 | 112.93 (19) |
C10—C9—C8 | 109.3 (3) | C22—N4—P2 | 122.37 (16) |
C10—C9—H9A | 109.8 | C26—N4—P2 | 122.27 (17) |
C8—C9—H9A | 109.8 | N4—C22—C23 | 111.4 (3) |
C10—C9—H9B | 109.8 | N4—C22—H22A | 109.3 |
C8—C9—H9B | 109.8 | C23—C22—H22A | 109.3 |
H9A—C9—H9B | 108.3 | N4—C22—H22B | 109.3 |
C11—C10—C9 | 111.5 (3) | C23—C22—H22B | 109.3 |
C11—C10—H10A | 109.3 | H22A—C22—H22B | 108.0 |
C9—C10—H10A | 109.3 | C22—C23—C24 | 109.5 (3) |
C11—C10—H10B | 109.3 | C22—C23—H23A | 109.8 |
C9—C10—H10B | 109.3 | C24—C23—H23A | 109.8 |
H10A—C10—H10B | 108.0 | C22—C23—H23B | 109.8 |
N1—C11—C10 | 111.8 (3) | C24—C23—H23B | 109.8 |
N1—C11—H11A | 109.3 | H23A—C23—H23B | 108.2 |
C10—C11—H11A | 109.3 | C23—C24—C25 | 110.7 (3) |
N1—C11—H11B | 109.3 | C23—C24—H24A | 109.5 |
C10—C11—H11B | 109.3 | C25—C24—H24A | 109.5 |
H11A—C11—H11B | 107.9 | C23—C24—H24B | 109.5 |
C16—N2—C12 | 113.5 (2) | C25—C24—H24B | 109.5 |
C16—N2—P1 | 122.31 (18) | H24A—C24—H24B | 108.1 |
C12—N2—P1 | 121.26 (18) | C26—C25—C24 | 111.3 (3) |
N2—C12—C13 | 111.1 (2) | C26—C25—H25A | 109.4 |
N2—C12—H12A | 109.4 | C24—C25—H25A | 109.4 |
C13—C12—H12A | 109.4 | C26—C25—H25B | 109.4 |
N2—C12—H12B | 109.4 | C24—C25—H25B | 109.4 |
C13—C12—H12B | 109.4 | H25A—C25—H25B | 108.0 |
H12A—C12—H12B | 108.0 | N4—C26—C25 | 110.7 (3) |
C12—C13—C14 | 110.7 (2) | N4—C26—H26A | 109.5 |
C12—C13—H13A | 109.5 | C25—C26—H26A | 109.5 |
C14—C13—H13A | 109.5 | N4—C26—H26B | 109.5 |
C12—C13—H13B | 109.5 | C25—C26—H26B | 109.5 |
C14—C13—H13B | 109.5 | H26A—C26—H26B | 108.1 |
C1—Pd1—P1—N2 | 109.12 (11) | Pd1—P1—N1—C11 | −73.1 (2) |
P2—Pd1—P1—N2 | 96.51 (11) | C11—N1—C7—C8 | −59.2 (4) |
Br1—Pd1—P1—N2 | −70.58 (9) | P1—N1—C7—C8 | 165.5 (3) |
C1—Pd1—P1—O1 | −8.77 (9) | N1—C7—C8—C9 | 57.9 (4) |
P2—Pd1—P1—O1 | −21.39 (10) | C7—C8—C9—C10 | −54.5 (5) |
Br1—Pd1—P1—O1 | 171.52 (6) | C8—C9—C10—C11 | 53.1 (5) |
C1—Pd1—P1—N1 | −120.48 (11) | C7—N1—C11—C10 | 59.2 (4) |
P2—Pd1—P1—N1 | −133.10 (10) | P1—N1—C11—C10 | −164.4 (2) |
Br1—Pd1—P1—N1 | 59.81 (9) | C9—C10—C11—N1 | −56.2 (4) |
C1—Pd1—P2—N4 | −117.13 (11) | O1—P1—N2—C16 | −44.3 (2) |
P1—Pd1—P2—N4 | −104.54 (11) | N1—P1—N2—C16 | 58.5 (2) |
Br1—Pd1—P2—N4 | 62.52 (10) | Pd1—P1—N2—C16 | −160.24 (17) |
C1—Pd1—P2—O2 | 0.34 (9) | O1—P1—N2—C12 | 115.2 (2) |
P1—Pd1—P2—O2 | 12.94 (10) | N1—P1—N2—C12 | −142.08 (19) |
Br1—Pd1—P2—O2 | 180.00 (7) | Pd1—P1—N2—C12 | −0.8 (2) |
C1—Pd1—P2—N3 | 110.24 (12) | C16—N2—C12—C13 | 56.8 (3) |
P1—Pd1—P2—N3 | 122.84 (12) | P1—N2—C12—C13 | −104.4 (2) |
Br1—Pd1—P2—N3 | −70.10 (11) | N2—C12—C13—C14 | −54.9 (3) |
P1—Pd1—C1—C2 | −175.34 (19) | C12—C13—C14—C15 | 54.5 (3) |
P2—Pd1—C1—C2 | 0.39 (17) | C13—C14—C15—C16 | −54.8 (3) |
P1—Pd1—C1—C6 | 5.65 (16) | C12—N2—C16—C15 | −56.5 (3) |
P2—Pd1—C1—C6 | −178.63 (18) | P1—N2—C16—C15 | 104.4 (2) |
C6—C1—C2—O2 | 177.85 (19) | C14—C15—C16—N2 | 55.2 (3) |
Pd1—C1—C2—O2 | −1.2 (3) | N4—P2—N3—C21 | −47.9 (2) |
C6—C1—C2—C3 | −1.3 (3) | O2—P2—N3—C21 | −158.0 (2) |
Pd1—C1—C2—C3 | 179.68 (18) | Pd1—P2—N3—C21 | 89.0 (2) |
O2—C2—C3—C4 | −177.5 (2) | N4—P2—N3—C17 | 164.8 (2) |
C1—C2—C3—C4 | 1.6 (4) | O2—P2—N3—C17 | 54.7 (2) |
C2—C3—C4—C5 | −0.4 (4) | Pd1—P2—N3—C17 | −58.3 (3) |
C3—C4—C5—C6 | −1.0 (4) | C21—N3—C17—C18 | −54.1 (4) |
C4—C5—C6—C1 | 1.4 (3) | P2—N3—C17—C18 | 95.9 (3) |
C4—C5—C6—O1 | 179.8 (2) | N3—C17—C18—C19 | 54.9 (4) |
C2—C1—C6—C5 | −0.3 (3) | C17—C18—C19—C20 | −54.8 (4) |
Pd1—C1—C6—C5 | 178.77 (17) | C18—C19—C20—C21 | 53.4 (4) |
C2—C1—C6—O1 | −178.70 (19) | C17—N3—C21—C20 | 54.1 (3) |
Pd1—C1—C6—O1 | 0.4 (3) | P2—N3—C21—C20 | −94.9 (3) |
C5—C6—O1—P1 | 172.54 (17) | C19—C20—C21—N3 | −53.7 (4) |
C1—C6—O1—P1 | −9.0 (2) | O2—P2—N4—C22 | −113.9 (2) |
N2—P1—O1—C6 | −110.08 (16) | N3—P2—N4—C22 | 143.9 (2) |
N1—P1—O1—C6 | 143.25 (16) | Pd1—P2—N4—C22 | 1.4 (3) |
Pd1—P1—O1—C6 | 11.78 (15) | O2—P2—N4—C26 | 47.1 (2) |
C3—C2—O2—P2 | −179.37 (18) | N3—P2—N4—C26 | −55.1 (2) |
C1—C2—O2—P2 | 1.5 (3) | Pd1—P2—N4—C26 | 162.4 (2) |
N4—P2—O2—C2 | 121.83 (17) | C26—N4—C22—C23 | −58.1 (3) |
N3—P2—O2—C2 | −131.42 (17) | P2—N4—C22—C23 | 104.5 (3) |
Pd1—P2—O2—C2 | −1.04 (17) | N4—C22—C23—C24 | 57.4 (4) |
N2—P1—N1—C7 | −165.4 (2) | C22—C23—C24—C25 | −55.9 (5) |
O1—P1—N1—C7 | −54.8 (2) | C23—C24—C25—C26 | 54.6 (5) |
Pd1—P1—N1—C7 | 60.2 (2) | C22—N4—C26—C25 | 55.4 (3) |
N2—P1—N1—C11 | 61.2 (2) | P2—N4—C26—C25 | −107.3 (3) |
O1—P1—N1—C11 | 171.9 (2) | C24—C25—C26—N4 | −53.4 (4) |
Experimental details
Crystal data | |
Chemical formula | [PdBr(C26H43N4O2P2)] |
Mr | 691.9 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 183 |
a, b, c (Å) | 9.8843 (15), 12.3457 (19), 13.815 (2) |
α, β, γ (°) | 76.635 (18), 70.676 (17), 73.847 (17) |
V (Å3) | 1510.0 (4) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 2.07 |
Crystal size (mm) | 0.33 × 0.32 × 0.12 |
Data collection | |
Diffractometer | Stoe IPDS diffractometer |
Absorption correction | Numerical (Coppens et al., 1965) |
Tmin, Tmax | 0.568, 0.797 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 19696, 4989, 4431 |
Rint | 0.056 |
(sin θ/λ)max (Å−1) | 0.595 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.024, 0.065, 1.02 |
No. of reflections | 4989 |
No. of parameters | 325 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.71, −0.37 |
Computer programs: IPDS Software (Stoe & Cie, 1999), SHELXS97 (Sheldrick, 1997), ORTEP-3 for Windows (Farrugia, 1997), WinGX (Farrugia, 1999) and SHELXL97 (Sheldrick, 1997).
Pd1—C1 | 1.988 (2) | P1—N1 | 1.6762 (18) |
Pd1—P1 | 2.2808 (7) | P2—N4 | 1.631 (2) |
Pd1—P2 | 2.2891 (7) | P2—O2 | 1.6563 (19) |
Pd1—Br1 | 2.5066 (7) | P2—N3 | 1.663 (2) |
P1—N2 | 1.643 (2) | C2—O2 | 1.386 (3) |
P1—O1 | 1.6549 (19) | C6—O1 | 1.397 (3) |
C1—Pd1—P1 | 80.14 (7) | P1—Pd1—Br1 | 99.20 (3) |
C1—Pd1—P2 | 80.63 (7) | P2—Pd1—Br1 | 100.00 (3) |
P1—Pd1—P2 | 160.31 (3) | O1—P1—Pd1 | 104.72 (6) |
C1—Pd1—Br1 | 179.28 (7) | O2—P2—Pd1 | 103.76 (7) |
In a recent article, we reported a new concept for the synthesis of aminophosphine-based pincer complexes of palladium with the general formula of [Pd(Cl){C6H3(XP(piperidinyl)2)2}] (X = NH or O), which were formed by facile activation of C—H and P—N bonds (Bolliger et al., 2007). These complexes proved to be extremely efficient catalysts for the Suzuki–Miyaura cross-coupling reaction (Miyaura et al., 1979) and led to very high conversion rates and quantitative yields in extremely short reaction times and with very low catalyst loadings. The analogous bromo complex [Pd(Br){C6H3(OP(piperidinyl)2)2}] (I), which was found to be formed in the catalytic cycle, was independently prepared and the X-ray structure is presented here.
The crystal structure of (I) consists of discrete molecules with no intermolecular short contacts. The palladium atom presents a distorted square planar coordination with Br, C1, P1 and P2 as donor atoms. The main distortion affects the angle P—Pd—P of the mutually trans phosphorus atoms (160.31 (3)°) and is a consequence of the two five-membered rings which impose strains to the coordination sphere. The Pd—Br bond length of 2.5066 (7) Å is very similar to values found in the literature for the [Pd(Br){C6H3(XPR2)2}] compounds: 2.495 (1) Å, X = CH2, R = Ph (Bachechi, 2003) and 2.514 (2) Å, X = CH2, R = Cy (Cross et al., 1995). The Pd—P bond distances of 2.2808 (7) and 2.2891 (7) Å fall in the typical range observed for compounds with the [Pd{C6H3(XPR2)2}] moiety.