metal-organic compounds
trans-Carbonylchloridobis[tris(4-chlorophenyl)phosphane]rhodium(I) acetone monosolvate
aResearch Centre for Synthesis and Catalysis, Department of Chemistry, University of Johannesburg, PO Box 524 Auckland Park, Johannesburg, 2006, South Africa
*Correspondence e-mail: rmeijboom@uj.ac.za
The title compound, trans-[RhCl(C18H12Cl3P)2(CO)]·C3H6O, contains an Rh(I) atom in a distorted square-planar coordination with a P—Rh—P angle of 175.27 (2)° and Rh—P bond lengths of 2.3127 (4) and 2.3219 (4) Å. The rhodium complexes link each other through weak intermolecular contacts between the acetone methyl groups and the carbonyl O atom. Interactions between the acetone solvent molecule and the Cl—Rh unit results in a reduced P—Rh—Cl angle of 86.675 (15)°.
Related literature
For a review of rhodium Vaska {trans-[RhCl(CO)(PR3)2]} compounds, see: Roodt et al. (2003). For related compounds, see: Angoletta (1959); Vaska & Di Luzio (1961); Chen et al. (1991); Kuwabara & Bau (1994); Otto et al. (2000); Otto (2001); Meijboom et al. (2005).
Experimental
Crystal data
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Refinement
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Data collection: APEX2 (Bruker, 2007); cell SAINT-Plus (Bruker, 2007); data reduction: SAINT-Plus and XPREP (Bruker, 2007); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: DIAMOND (Brandenburg & Putz, 2005) and ORTEP-3 (Farrugia, 1997); software used to prepare material for publication: WinGX (Farrugia, 1999).
Supporting information
https://doi.org/10.1107/S1600536810039814/si2294sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536810039814/si2294Isup2.hkl
To a solution of [Rh2(CO)4Cl2] (19.7 mg, 0.051 mmol) in acetone (3 cm3) was added 4 equivalents of a solution of P(4-ClC6H4)3 ligand (73.7 mg, 0.203 mmol) in acetone (2 cm3) while stirring. Immediately the effervescence of a gas, presumably CO, was observed. The solvent was evaporated in a round bottomed flask overnight yielding 62% of the title compound (28.2 mg, 0.0314 mmol). IR (cm-1): 629, 705, 746, 815, 1012, 1082, 1120, 1183, 1226, 1363, 1387, 1479, 1560, 1577, 1638, 1706, 1985 (CO). 13C NMR (δ /p.p.m., CDCl3): 139 (1 C, Ph), 137 (1 C, Ph), 135 (1 C, Ph), 133 (1 C, Ph), 130 (4 C, Ph), 129 (1 C, CO), 129 (1 C, Ph), 128 (1 C, Ph). 31P NMR (δ /p.p.m., CDCl3): 27.56 [1J(Rh—P) = 128 Hz].
The methyl and aromatic H atoms were placed in geometrically idealized positions and constrained to ride on their parent atoms, with C—H = 0.95–0.98 Å and Uiso(H) = 1.5Ueq(C) and 1.2Ueq(C), respectively. The methyl groups were generated to fit the difference electron density and the groups were then refined as rigid rotors.
The original Vaska complex, trans-[IrCl(CO)(PPh3)2], was first reported in 1959 (Angoletta, 1959), but later correctly formulated by Vaska in 1961 (Vaska & Di Luzio, 1961). This class of symmetrical square-planar complexes often crystallizes with the metal atom on a crystallographic centre of symmetry, thus imposing a disordered packing arrangement (Otto, 2001; Otto et al., 2000; Chen et al., 1991; Kuwabara & Bau, 1994). We report the title compound as one of the few crystallographic examples of this group which does not show disorder along the carbonyl/chloro axis.
Compound (I) crystallizes in a triclinic
The of trans-[RhCl(CO){P(4-ClC6H4)3}2] (Fig.1) shows the expected square planar geometry with the phosphine ligands trans to each other.As seen in Fig. 1 and Table 1, the complex shows a non-equally spaced square planar coordination centre with the P—Rh—P angle being 175.27 (2) °. The 1J(Rh—P) coupling of 128 Hz is in agreement with the coupling constants for other rhodium Vaska type complexes of this nature (Meijboom et al., 2005).
Table 1 shows the angles C37—Rh—P1 and C37—Rh—P2 are nearly equal, while P2—Rh—Cl is 90.348 (15) ° and P1—Rh—Cl is only 86.675 (15) °. This inequality around the chlorine's displacement is interesting as the most linear hydrogen bond involving Cl1 is between C40—H40···Cl1 (162 °, Table 2) pulling it towards C40—H40 and thus decreasing the angle of P1—Rh—Cl. Additionally, the rhodium complexes link each other via weak intermolecular C—H···O and C—H···Cl hydrogen bonds (Table 2). The weak interactions between the acetone solvent molecule and the Rh—Cl unit resulted in a reduced P—Rh—Cl angle of 86.675 (15)°.
The ν(CO) stretching frequency of compound (1) is 1985 cm-1 which is higher than that of [Rh(CO)Cl{P(C6H5)3}2], the unchloronated version, which was reported by Roodt (Roodt et al., 2003) as 1979 cm-1. The increase is due to the moderate electron withdrawing capabilities of the para-substituted chlorine on the phenyl rings.
For a review of rhodium Vaska {trans-[RhCl(CO)(PR3)2]} compounds, see: Roodt et al. (2003). For related compounds, see: Angoletta (1959); Vaska & Di Luzio (1961); Chen et al. (1991); Kuwabara & Bau (1994); Otto et al. (2000); Otto (2001); Meijboom et al. (2005).
Data collection: APEX2 (Bruker, 2007); cell
SAINT-Plus (Bruker, 2007); data reduction: SAINT-Plus and XPREP (Bruker, 2007); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: DIAMOND (Brandenburg & Putz, 2005) and ORTEP-3 (Farrugia, 1997); software used to prepare material for publication: WinGX (Farrugia, 1999).Fig. 1. View of (I) (50% probability displacement ellipsoids) with H atoms omitted for clarity. The carbon atoms have been numbered sequentially and some labels have been omitted for clarity. |
[RhCl(C18H12Cl3P)2(CO)]·C3H6O | Z = 2 |
Mr = 955.64 | F(000) = 960 |
Triclinic, P1 | Dx = 1.581 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 10.6130 (7) Å | Cell parameters from 25954 reflections |
b = 12.7970 (8) Å | θ = 1.8–28.4° |
c = 16.7470 (11) Å | µ = 1.01 mm−1 |
α = 71.631 (1)° | T = 100 K |
β = 81.742 (1)° | Block, yellow |
γ = 68.537 (1)° | 0.37 × 0.17 × 0.07 mm |
V = 2007.9 (2) Å3 |
Bruker X8 APEXII 4K KappaCCD diffractometer | 9160 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.023 |
φ and ω scans | θmax = 28.4°, θmin = 1.8° |
Absorption correction: multi-scan (SADABS; Bruker, 2007) | h = −14→12 |
Tmin = 0.707, Tmax = 0.933 | k = −16→17 |
25954 measured reflections | l = −21→22 |
10031 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)] = 0.026 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.069 | H-atom parameters constrained |
S = 1.04 | w = 1/[σ2(Fo2) + (0.0302P)2 + 1.7506P] where P = (Fo2 + 2Fc2)/3 |
10031 reflections | (Δ/σ)max = 0.009 |
471 parameters | Δρmax = 1.17 e Å−3 |
4 restraints | Δρmin = −0.69 e Å−3 |
[RhCl(C18H12Cl3P)2(CO)]·C3H6O | γ = 68.537 (1)° |
Mr = 955.64 | V = 2007.9 (2) Å3 |
Triclinic, P1 | Z = 2 |
a = 10.6130 (7) Å | Mo Kα radiation |
b = 12.7970 (8) Å | µ = 1.01 mm−1 |
c = 16.7470 (11) Å | T = 100 K |
α = 71.631 (1)° | 0.37 × 0.17 × 0.07 mm |
β = 81.742 (1)° |
Bruker X8 APEXII 4K KappaCCD diffractometer | 10031 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2007) | 9160 reflections with I > 2σ(I) |
Tmin = 0.707, Tmax = 0.933 | Rint = 0.023 |
25954 measured reflections |
R[F2 > 2σ(F2)] = 0.026 | 4 restraints |
wR(F2) = 0.069 | H-atom parameters constrained |
S = 1.04 | Δρmax = 1.17 e Å−3 |
10031 reflections | Δρmin = −0.69 e Å−3 |
471 parameters |
Experimental. The intensity data was collected on a Bruker X8 Apex II CCD diffractometer using an exposure time of 10 s/frame. A total of 1895 frames were collected with a frame width of 0.5° covering up to θ = 28.38° with 99.9% completeness accomplished. |
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 | 0.45279 (16) | 0.41780 (13) | 0.86206 (10) | 0.0164 (3) | |
C2 | 0.41530 (18) | 0.37176 (15) | 0.94513 (11) | 0.0210 (3) | |
H2 | 0.4811 | 0.3368 | 0.9874 | 0.025* | |
C3 | 0.28161 (19) | 0.37668 (16) | 0.96678 (12) | 0.0245 (4) | |
H3 | 0.2559 | 0.3451 | 1.0234 | 0.029* | |
C4 | 0.18729 (17) | 0.42829 (16) | 0.90434 (12) | 0.0232 (3) | |
C5 | 0.22084 (18) | 0.47737 (16) | 0.82210 (12) | 0.0245 (4) | |
H5 | 0.1539 | 0.5149 | 0.7805 | 0.029* | |
C6 | 0.35413 (18) | 0.47109 (15) | 0.80104 (11) | 0.0214 (3) | |
H6 | 0.3787 | 0.5035 | 0.7443 | 0.026* | |
C7 | 0.74075 (16) | 0.32026 (14) | 0.90731 (10) | 0.0171 (3) | |
C8 | 0.73223 (17) | 0.35235 (15) | 0.98114 (11) | 0.0198 (3) | |
H8 | 0.6603 | 0.4195 | 0.9892 | 0.024* | |
C9 | 0.82786 (18) | 0.28702 (17) | 1.04254 (11) | 0.0245 (4) | |
H9 | 0.8209 | 0.3078 | 1.0931 | 0.029* | |
C10 | 0.93422 (19) | 0.19046 (17) | 1.02877 (12) | 0.0261 (4) | |
C11 | 0.94494 (18) | 0.15729 (15) | 0.95637 (12) | 0.0249 (4) | |
H11 | 1.0181 | 0.091 | 0.9481 | 0.03* | |
C12 | 0.84757 (17) | 0.22195 (15) | 0.89602 (11) | 0.0212 (3) | |
H12 | 0.8536 | 0.1991 | 0.8464 | 0.025* | |
C13 | 0.62608 (16) | 0.55598 (13) | 0.81044 (10) | 0.0161 (3) | |
C14 | 0.51081 (17) | 0.64893 (15) | 0.82071 (11) | 0.0205 (3) | |
H14 | 0.4265 | 0.6367 | 0.8359 | 0.025* | |
C15 | 0.51770 (19) | 0.75957 (15) | 0.80891 (12) | 0.0244 (4) | |
H15 | 0.4384 | 0.823 | 0.8147 | 0.029* | |
C16 | 0.6411 (2) | 0.77582 (15) | 0.78876 (11) | 0.0232 (3) | |
C17 | 0.7573 (2) | 0.68537 (16) | 0.77805 (13) | 0.0263 (4) | |
H17 | 0.8416 | 0.698 | 0.7638 | 0.032* | |
C18 | 0.74917 (18) | 0.57584 (15) | 0.78836 (12) | 0.0230 (3) | |
H18 | 0.8283 | 0.5137 | 0.7803 | 0.028* | |
C19 | 0.86583 (16) | 0.11855 (14) | 0.62309 (10) | 0.0173 (3) | |
C20 | 0.96226 (18) | 0.10485 (16) | 0.67746 (11) | 0.0232 (3) | |
H20 | 0.9571 | 0.1691 | 0.6962 | 0.028* | |
C21 | 1.06604 (19) | −0.00186 (17) | 0.70460 (12) | 0.0276 (4) | |
H21 | 1.133 | −0.0108 | 0.7406 | 0.033* | |
C22 | 1.06923 (19) | −0.09470 (16) | 0.67782 (11) | 0.0256 (4) | |
C23 | 0.9774 (2) | −0.08305 (16) | 0.62225 (12) | 0.0266 (4) | |
H23 | 0.9838 | −0.1473 | 0.6031 | 0.032* | |
C24 | 0.87527 (19) | 0.02477 (15) | 0.59474 (12) | 0.0236 (3) | |
H24 | 0.8115 | 0.0343 | 0.5563 | 0.028* | |
C25 | 0.59960 (17) | 0.22421 (14) | 0.55503 (11) | 0.0196 (3) | |
C26 | 0.49901 (18) | 0.19286 (16) | 0.60992 (12) | 0.0242 (4) | |
H26 | 0.4953 | 0.192 | 0.6671 | 0.029* | |
C27 | 0.4036 (2) | 0.16278 (17) | 0.58096 (14) | 0.0302 (4) | |
H27 | 0.335 | 0.1412 | 0.6181 | 0.036* | |
C28 | 0.4105 (2) | 0.16491 (16) | 0.49772 (14) | 0.0304 (4) | |
C29 | 0.5097 (2) | 0.19354 (18) | 0.44249 (13) | 0.0312 (4) | |
H29 | 0.5133 | 0.1929 | 0.3856 | 0.037* | |
C30 | 0.60475 (19) | 0.22352 (17) | 0.47133 (12) | 0.0259 (4) | |
H30 | 0.6738 | 0.2437 | 0.4338 | 0.031* | |
C31 | 0.79052 (17) | 0.34837 (14) | 0.50272 (10) | 0.0183 (3) | |
C32 | 0.69971 (18) | 0.44776 (16) | 0.45032 (11) | 0.0223 (3) | |
H32 | 0.6058 | 0.4585 | 0.4557 | 0.027* | |
C33 | 0.74499 (19) | 0.53101 (16) | 0.39047 (11) | 0.0248 (4) | |
H33 | 0.6828 | 0.5983 | 0.3551 | 0.03* | |
C34 | 0.8822 (2) | 0.51408 (16) | 0.38325 (11) | 0.0246 (4) | |
C35 | 0.97511 (19) | 0.41477 (17) | 0.43215 (12) | 0.0261 (4) | |
H35 | 1.0692 | 0.4032 | 0.425 | 0.031* | |
C36 | 0.92848 (18) | 0.33212 (15) | 0.49190 (11) | 0.0220 (3) | |
H36 | 0.9915 | 0.2637 | 0.5258 | 0.026* | |
C37 | 0.69720 (17) | 0.47391 (12) | 0.63949 (10) | 0.0180 (3) | |
P1 | 0.62373 (4) | 0.40975 (3) | 0.82264 (3) | 0.01420 (8) | |
P2 | 0.72683 (4) | 0.25790 (4) | 0.59485 (3) | 0.01550 (8) | |
Cl1 | 0.63216 (5) | 0.17010 (4) | 0.79542 (3) | 0.02401 (9) | |
Cl2 | 1.06102 (5) | 0.11330 (5) | 1.10165 (3) | 0.04090 (13) | |
Cl3 | 0.65127 (5) | 0.91247 (4) | 0.77695 (3) | 0.03312 (11) | |
Cl4 | 1.18984 (6) | −0.23221 (5) | 0.71789 (3) | 0.03995 (13) | |
Cl5 | 0.28900 (6) | 0.13135 (5) | 0.46052 (4) | 0.04566 (15) | |
Cl6 | 0.93897 (6) | 0.62136 (4) | 0.31201 (3) | 0.03453 (11) | |
Cl7 | 0.02340 (5) | 0.42625 (5) | 0.92807 (4) | 0.03486 (11) | |
Rh1 | 0.668804 (12) | 0.340979 (10) | 0.705687 (7) | 0.01450 (4) | |
O1 | 0.71508 (14) | 0.55764 (11) | 0.59840 (8) | 0.0272 (3) | |
C38 | 0.3033 (2) | 0.03136 (18) | 0.88771 (14) | 0.0311 (4) | |
C39 | 0.3764 (3) | −0.0610 (2) | 0.96104 (18) | 0.0542 (7) | |
H39A | 0.3645 | −0.1349 | 0.9651 | 0.081* | |
H39B | 0.34 | −0.038 | 1.0126 | 0.081* | |
H39C | 0.473 | −0.071 | 0.9539 | 0.081* | |
C40 | 0.2919 (3) | 0.1538 (2) | 0.87945 (19) | 0.0463 (6) | |
H40A | 0.2352 | 0.2075 | 0.8318 | 0.07* | |
H40B | 0.3823 | 0.1605 | 0.8699 | 0.07* | |
H40C | 0.2506 | 0.174 | 0.9312 | 0.07* | |
O2 | 0.2549 (2) | 0.0074 (2) | 0.83829 (16) | 0.0709 (7) |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0168 (7) | 0.0131 (7) | 0.0212 (8) | −0.0044 (6) | −0.0005 (6) | −0.0083 (6) |
C2 | 0.0219 (8) | 0.0212 (8) | 0.0215 (8) | −0.0077 (6) | −0.0018 (6) | −0.0073 (6) |
C3 | 0.0255 (9) | 0.0272 (9) | 0.0248 (9) | −0.0129 (7) | 0.0046 (7) | −0.0105 (7) |
C4 | 0.0173 (8) | 0.0227 (8) | 0.0354 (10) | −0.0090 (6) | 0.0045 (7) | −0.0159 (7) |
C5 | 0.0202 (8) | 0.0237 (8) | 0.0309 (9) | −0.0053 (7) | −0.0050 (7) | −0.0104 (7) |
C6 | 0.0213 (8) | 0.0206 (8) | 0.0222 (8) | −0.0066 (6) | −0.0021 (6) | −0.0058 (6) |
C7 | 0.0165 (7) | 0.0148 (7) | 0.0194 (7) | −0.0044 (6) | −0.0028 (6) | −0.0044 (6) |
C8 | 0.0182 (8) | 0.0202 (8) | 0.0219 (8) | −0.0061 (6) | −0.0002 (6) | −0.0079 (6) |
C9 | 0.0226 (8) | 0.0317 (9) | 0.0203 (8) | −0.0103 (7) | −0.0015 (7) | −0.0070 (7) |
C10 | 0.0211 (8) | 0.0276 (9) | 0.0237 (9) | −0.0070 (7) | −0.0065 (7) | 0.0019 (7) |
C11 | 0.0205 (8) | 0.0184 (8) | 0.0292 (9) | −0.0015 (6) | −0.0027 (7) | −0.0031 (7) |
C12 | 0.0206 (8) | 0.0173 (8) | 0.0245 (8) | −0.0042 (6) | −0.0014 (6) | −0.0069 (6) |
C13 | 0.0200 (8) | 0.0129 (7) | 0.0169 (7) | −0.0055 (6) | −0.0023 (6) | −0.0056 (6) |
C14 | 0.0195 (8) | 0.0169 (8) | 0.0260 (8) | −0.0048 (6) | −0.0023 (6) | −0.0083 (6) |
C15 | 0.0260 (9) | 0.0147 (8) | 0.0318 (9) | −0.0019 (6) | −0.0047 (7) | −0.0100 (7) |
C16 | 0.0351 (10) | 0.0133 (7) | 0.0237 (8) | −0.0102 (7) | −0.0065 (7) | −0.0042 (6) |
C17 | 0.0264 (9) | 0.0222 (8) | 0.0346 (10) | −0.0128 (7) | −0.0008 (7) | −0.0087 (7) |
C18 | 0.0203 (8) | 0.0176 (8) | 0.0326 (9) | −0.0061 (6) | 0.0000 (7) | −0.0099 (7) |
C19 | 0.0166 (7) | 0.0168 (7) | 0.0177 (7) | −0.0042 (6) | −0.0005 (6) | −0.0058 (6) |
C20 | 0.0241 (9) | 0.0229 (8) | 0.0233 (8) | −0.0051 (7) | −0.0047 (7) | −0.0093 (7) |
C21 | 0.0220 (9) | 0.0317 (10) | 0.0247 (9) | −0.0018 (7) | −0.0065 (7) | −0.0083 (7) |
C22 | 0.0230 (9) | 0.0217 (8) | 0.0202 (8) | 0.0029 (7) | −0.0002 (7) | −0.0029 (7) |
C23 | 0.0302 (10) | 0.0183 (8) | 0.0298 (9) | −0.0023 (7) | −0.0027 (7) | −0.0112 (7) |
C24 | 0.0248 (9) | 0.0198 (8) | 0.0272 (9) | −0.0039 (7) | −0.0068 (7) | −0.0098 (7) |
C25 | 0.0176 (8) | 0.0165 (7) | 0.0251 (8) | −0.0024 (6) | −0.0053 (6) | −0.0085 (6) |
C26 | 0.0218 (8) | 0.0206 (8) | 0.0311 (9) | −0.0062 (7) | −0.0041 (7) | −0.0084 (7) |
C27 | 0.0218 (9) | 0.0230 (9) | 0.0469 (12) | −0.0078 (7) | −0.0057 (8) | −0.0093 (8) |
C28 | 0.0251 (9) | 0.0180 (8) | 0.0511 (12) | −0.0031 (7) | −0.0179 (8) | −0.0118 (8) |
C29 | 0.0332 (10) | 0.0286 (10) | 0.0345 (10) | −0.0045 (8) | −0.0150 (8) | −0.0138 (8) |
C30 | 0.0242 (9) | 0.0276 (9) | 0.0281 (9) | −0.0059 (7) | −0.0055 (7) | −0.0125 (7) |
C31 | 0.0203 (8) | 0.0183 (7) | 0.0163 (7) | −0.0049 (6) | 0.0003 (6) | −0.0071 (6) |
C32 | 0.0195 (8) | 0.0233 (8) | 0.0207 (8) | −0.0032 (6) | 0.0001 (6) | −0.0069 (7) |
C33 | 0.0284 (9) | 0.0199 (8) | 0.0202 (8) | −0.0021 (7) | −0.0017 (7) | −0.0049 (7) |
C34 | 0.0319 (10) | 0.0213 (8) | 0.0213 (8) | −0.0120 (7) | 0.0031 (7) | −0.0054 (7) |
C35 | 0.0226 (9) | 0.0268 (9) | 0.0292 (9) | −0.0111 (7) | 0.0015 (7) | −0.0061 (7) |
C36 | 0.0209 (8) | 0.0203 (8) | 0.0234 (8) | −0.0061 (6) | −0.0017 (6) | −0.0050 (7) |
C37 | 0.0184 (7) | 0.0166 (7) | 0.0203 (7) | −0.0053 (6) | −0.0007 (6) | −0.0075 (6) |
P1 | 0.01491 (18) | 0.01144 (17) | 0.01693 (18) | −0.00364 (14) | −0.00065 (14) | −0.00590 (14) |
P2 | 0.01585 (19) | 0.01487 (18) | 0.01667 (19) | −0.00427 (15) | −0.00100 (14) | −0.00663 (15) |
Cl1 | 0.0373 (2) | 0.01797 (18) | 0.02145 (19) | −0.01497 (17) | 0.00302 (16) | −0.00717 (15) |
Cl2 | 0.0270 (2) | 0.0523 (3) | 0.0291 (2) | −0.0029 (2) | −0.01223 (19) | −0.0002 (2) |
Cl3 | 0.0448 (3) | 0.0168 (2) | 0.0426 (3) | −0.01495 (19) | −0.0064 (2) | −0.00755 (18) |
Cl4 | 0.0390 (3) | 0.0304 (2) | 0.0270 (2) | 0.0134 (2) | −0.0045 (2) | −0.00510 (19) |
Cl5 | 0.0371 (3) | 0.0340 (3) | 0.0742 (4) | −0.0102 (2) | −0.0292 (3) | −0.0170 (3) |
Cl6 | 0.0432 (3) | 0.0276 (2) | 0.0313 (2) | −0.0178 (2) | 0.0031 (2) | −0.00148 (19) |
Cl7 | 0.0213 (2) | 0.0458 (3) | 0.0463 (3) | −0.0170 (2) | 0.00739 (19) | −0.0223 (2) |
Rh1 | 0.01681 (7) | 0.01199 (6) | 0.01609 (6) | −0.00515 (4) | 0.00030 (4) | −0.00597 (4) |
O1 | 0.0338 (7) | 0.0195 (6) | 0.0280 (7) | −0.0111 (5) | −0.0011 (5) | −0.0040 (5) |
C38 | 0.0233 (9) | 0.0279 (10) | 0.0451 (12) | −0.0039 (7) | −0.0021 (8) | −0.0200 (9) |
C39 | 0.0591 (17) | 0.0391 (13) | 0.0492 (15) | −0.0084 (12) | −0.0019 (12) | −0.0020 (11) |
C40 | 0.0412 (13) | 0.0286 (11) | 0.0677 (17) | −0.0111 (10) | −0.0042 (12) | −0.0116 (11) |
O2 | 0.0511 (12) | 0.0709 (14) | 0.1097 (18) | 0.0001 (10) | −0.0314 (12) | −0.0635 (14) |
C1—C2 | 1.392 (2) | C22—C23 | 1.380 (3) |
C1—C6 | 1.397 (2) | C22—Cl4 | 1.7434 (18) |
C1—P1 | 1.8165 (17) | C23—C24 | 1.393 (2) |
C2—C3 | 1.396 (2) | C23—H23 | 0.95 |
C2—H2 | 0.95 | C24—H24 | 0.95 |
C3—C4 | 1.383 (3) | C25—C26 | 1.395 (3) |
C3—H3 | 0.95 | C25—C30 | 1.398 (2) |
C4—C5 | 1.377 (3) | C25—P2 | 1.8221 (17) |
C4—Cl7 | 1.7356 (18) | C26—C27 | 1.397 (3) |
C5—C6 | 1.387 (2) | C26—H26 | 0.95 |
C5—H5 | 0.95 | C27—C28 | 1.378 (3) |
C6—H6 | 0.95 | C27—H27 | 0.95 |
C7—C12 | 1.396 (2) | C28—C29 | 1.373 (3) |
C7—C8 | 1.402 (2) | C28—Cl5 | 1.7438 (19) |
C7—P1 | 1.8183 (17) | C29—C30 | 1.392 (3) |
C8—C9 | 1.387 (2) | C29—H29 | 0.95 |
C8—H8 | 0.95 | C30—H30 | 0.95 |
C9—C10 | 1.392 (3) | C31—C36 | 1.395 (2) |
C9—H9 | 0.95 | C31—C32 | 1.400 (2) |
C10—C11 | 1.383 (3) | C31—P2 | 1.8235 (17) |
C10—Cl2 | 1.7366 (19) | C32—C33 | 1.391 (2) |
C11—C12 | 1.386 (2) | C32—H32 | 0.95 |
C11—H11 | 0.95 | C33—C34 | 1.385 (3) |
C12—H12 | 0.95 | C33—H33 | 0.95 |
C13—C14 | 1.394 (2) | C34—C35 | 1.384 (3) |
C13—C18 | 1.397 (2) | C34—Cl6 | 1.7426 (18) |
C13—P1 | 1.8265 (16) | C35—C36 | 1.392 (2) |
C14—C15 | 1.394 (2) | C35—H35 | 0.95 |
C14—H14 | 0.95 | C36—H36 | 0.95 |
C15—C16 | 1.378 (3) | C37—O1 | 1.1420 (18) |
C15—H15 | 0.95 | C37—Rh1 | 1.8177 (13) |
C16—C17 | 1.384 (3) | P1—Rh1 | 2.3127 (4) |
C16—Cl3 | 1.7387 (17) | P2—Rh1 | 2.3219 (4) |
C17—C18 | 1.390 (2) | Cl1—Rh1 | 2.3611 (4) |
C17—H17 | 0.95 | C38—O2 | 1.200 (3) |
C18—H18 | 0.95 | C38—C39 | 1.481 (3) |
C19—C24 | 1.391 (2) | C38—C40 | 1.490 (3) |
C19—C20 | 1.394 (2) | C39—H39A | 0.98 |
C19—P2 | 1.8231 (17) | C39—H39B | 0.98 |
C20—C21 | 1.392 (3) | C39—H39C | 0.98 |
C20—H20 | 0.95 | C40—H40A | 0.98 |
C21—C22 | 1.384 (3) | C40—H40B | 0.98 |
C21—H21 | 0.95 | C40—H40C | 0.98 |
C2—C1—C6 | 119.00 (15) | C23—C24—H24 | 119.7 |
C2—C1—P1 | 125.78 (13) | C26—C25—C30 | 119.21 (17) |
C6—C1—P1 | 115.16 (12) | C26—C25—P2 | 119.51 (14) |
C1—C2—C3 | 120.45 (16) | C30—C25—P2 | 121.21 (14) |
C1—C2—H2 | 119.8 | C25—C26—C27 | 120.16 (18) |
C3—C2—H2 | 119.8 | C25—C26—H26 | 119.9 |
C4—C3—C2 | 118.86 (17) | C27—C26—H26 | 119.9 |
C4—C3—H3 | 120.6 | C28—C27—C26 | 119.00 (19) |
C2—C3—H3 | 120.6 | C28—C27—H27 | 120.5 |
C5—C4—C3 | 121.87 (16) | C26—C27—H27 | 120.5 |
C5—C4—Cl7 | 118.27 (15) | C29—C28—C27 | 122.19 (18) |
C3—C4—Cl7 | 119.80 (14) | C29—C28—Cl5 | 118.59 (17) |
C4—C5—C6 | 118.82 (17) | C27—C28—Cl5 | 119.22 (17) |
C4—C5—H5 | 120.6 | C28—C29—C30 | 118.81 (19) |
C6—C5—H5 | 120.6 | C28—C29—H29 | 120.6 |
C5—C6—C1 | 120.96 (16) | C30—C29—H29 | 120.6 |
C5—C6—H6 | 119.5 | C29—C30—C25 | 120.61 (19) |
C1—C6—H6 | 119.5 | C29—C30—H30 | 119.7 |
C12—C7—C8 | 119.10 (15) | C25—C30—H30 | 119.7 |
C12—C7—P1 | 119.17 (13) | C36—C31—C32 | 118.67 (16) |
C8—C7—P1 | 121.57 (12) | C36—C31—P2 | 120.49 (13) |
C9—C8—C7 | 120.63 (16) | C32—C31—P2 | 119.87 (13) |
C9—C8—H8 | 119.7 | C33—C32—C31 | 120.96 (17) |
C7—C8—H8 | 119.7 | C33—C32—H32 | 119.5 |
C8—C9—C10 | 118.82 (17) | C31—C32—H32 | 119.5 |
C8—C9—H9 | 120.6 | C34—C33—C32 | 118.87 (17) |
C10—C9—H9 | 120.6 | C34—C33—H33 | 120.6 |
C11—C10—C9 | 121.59 (17) | C32—C33—H33 | 120.6 |
C11—C10—Cl2 | 118.84 (15) | C35—C34—C33 | 121.55 (16) |
C9—C10—Cl2 | 119.51 (15) | C35—C34—Cl6 | 119.26 (15) |
C10—C11—C12 | 119.16 (17) | C33—C34—Cl6 | 119.19 (14) |
C10—C11—H11 | 120.4 | C34—C35—C36 | 119.00 (17) |
C12—C11—H11 | 120.4 | C34—C35—H35 | 120.5 |
C11—C12—C7 | 120.69 (17) | C36—C35—H35 | 120.5 |
C11—C12—H12 | 119.7 | C35—C36—C31 | 120.89 (17) |
C7—C12—H12 | 119.7 | C35—C36—H36 | 119.6 |
C14—C13—C18 | 118.59 (15) | C31—C36—H36 | 119.6 |
C14—C13—P1 | 123.20 (13) | O1—C37—Rh1 | 179.52 (16) |
C18—C13—P1 | 118.21 (12) | C1—P1—C7 | 108.94 (8) |
C13—C14—C15 | 120.87 (16) | C1—P1—C13 | 103.78 (7) |
C13—C14—H14 | 119.6 | C7—P1—C13 | 101.87 (7) |
C15—C14—H14 | 119.6 | C1—P1—Rh1 | 108.60 (5) |
C16—C15—C14 | 119.16 (16) | C7—P1—Rh1 | 114.06 (5) |
C16—C15—H15 | 120.4 | C13—P1—Rh1 | 118.80 (5) |
C14—C15—H15 | 120.4 | C25—P2—C19 | 104.16 (8) |
C15—C16—C17 | 121.33 (16) | C25—P2—C31 | 105.01 (8) |
C15—C16—Cl3 | 119.40 (14) | C19—P2—C31 | 104.90 (7) |
C17—C16—Cl3 | 119.27 (14) | C25—P2—Rh1 | 119.28 (6) |
C16—C17—C18 | 119.17 (17) | C19—P2—Rh1 | 110.52 (5) |
C16—C17—H17 | 120.4 | C31—P2—Rh1 | 111.77 (5) |
C18—C17—H17 | 120.4 | C37—Rh1—P1 | 91.58 (5) |
C17—C18—C13 | 120.86 (16) | C37—Rh1—P2 | 91.37 (5) |
C17—C18—H18 | 119.6 | P1—Rh1—P2 | 175.268 (15) |
C13—C18—H18 | 119.6 | C37—Rh1—Cl1 | 178.21 (5) |
C24—C19—C20 | 119.35 (16) | P1—Rh1—Cl1 | 86.675 (15) |
C24—C19—P2 | 122.03 (13) | P2—Rh1—Cl1 | 90.348 (15) |
C20—C19—P2 | 118.57 (13) | O2—C38—C39 | 120.8 (2) |
C21—C20—C19 | 120.77 (17) | O2—C38—C40 | 122.3 (2) |
C21—C20—H20 | 119.6 | C39—C38—C40 | 116.8 (2) |
C19—C20—H20 | 119.6 | C38—C39—H39A | 109.5 |
C22—C21—C20 | 118.33 (17) | C38—C39—H39B | 109.5 |
C22—C21—H21 | 120.8 | H39A—C39—H39B | 109.5 |
C20—C21—H21 | 120.8 | C38—C39—H39C | 109.5 |
C23—C22—C21 | 122.22 (17) | H39A—C39—H39C | 109.5 |
C23—C22—Cl4 | 118.67 (15) | H39B—C39—H39C | 109.5 |
C21—C22—Cl4 | 119.08 (15) | C38—C40—H40A | 109.5 |
C22—C23—C24 | 118.69 (17) | C38—C40—H40B | 109.5 |
C22—C23—H23 | 120.7 | H40A—C40—H40B | 109.5 |
C24—C23—H23 | 120.7 | C38—C40—H40C | 109.5 |
C19—C24—C23 | 120.54 (17) | H40A—C40—H40C | 109.5 |
C19—C24—H24 | 119.7 | H40B—C40—H40C | 109.5 |
C6—C1—C2—C3 | 1.3 (2) | C32—C33—C34—Cl6 | −176.89 (14) |
P1—C1—C2—C3 | −175.68 (13) | C33—C34—C35—C36 | −2.2 (3) |
C1—C2—C3—C4 | −0.2 (3) | Cl6—C34—C35—C36 | 176.83 (15) |
C2—C3—C4—C5 | −1.7 (3) | C34—C35—C36—C31 | 0.0 (3) |
C2—C3—C4—Cl7 | 175.40 (14) | C32—C31—C36—C35 | 2.1 (3) |
C3—C4—C5—C6 | 2.3 (3) | P2—C31—C36—C35 | −166.64 (15) |
Cl7—C4—C5—C6 | −174.84 (14) | C2—C1—P1—C7 | 5.09 (17) |
C4—C5—C6—C1 | −1.0 (3) | C6—C1—P1—C7 | −172.00 (12) |
C2—C1—C6—C5 | −0.7 (3) | C2—C1—P1—C13 | −102.85 (15) |
P1—C1—C6—C5 | 176.61 (14) | C6—C1—P1—C13 | 80.06 (13) |
C12—C7—C8—C9 | −0.5 (2) | C2—C1—P1—Rh1 | 129.86 (14) |
P1—C7—C8—C9 | −175.72 (13) | C6—C1—P1—Rh1 | −47.23 (13) |
C7—C8—C9—C10 | 1.4 (3) | C12—C7—P1—C1 | 123.09 (14) |
C8—C9—C10—C11 | −1.2 (3) | C8—C7—P1—C1 | −61.67 (15) |
C8—C9—C10—Cl2 | 175.78 (14) | C12—C7—P1—C13 | −127.67 (14) |
C9—C10—C11—C12 | 0.1 (3) | C8—C7—P1—C13 | 47.57 (15) |
Cl2—C10—C11—C12 | −176.89 (14) | C12—C7—P1—Rh1 | 1.59 (15) |
C10—C11—C12—C7 | 0.8 (3) | C8—C7—P1—Rh1 | 176.83 (12) |
C8—C7—C12—C11 | −0.6 (3) | C14—C13—P1—C1 | −7.18 (16) |
P1—C7—C12—C11 | 174.71 (14) | C18—C13—P1—C1 | 173.94 (14) |
C18—C13—C14—C15 | 0.2 (3) | C14—C13—P1—C7 | −120.32 (15) |
P1—C13—C14—C15 | −178.63 (14) | C18—C13—P1—C7 | 60.80 (15) |
C13—C14—C15—C16 | −1.5 (3) | C14—C13—P1—Rh1 | 113.46 (14) |
C14—C15—C16—C17 | 1.6 (3) | C18—C13—P1—Rh1 | −65.42 (15) |
C14—C15—C16—Cl3 | −178.16 (14) | C26—C25—P2—C19 | 92.47 (15) |
C15—C16—C17—C18 | −0.4 (3) | C30—C25—P2—C19 | −84.32 (16) |
Cl3—C16—C17—C18 | 179.36 (15) | C26—C25—P2—C31 | −157.52 (14) |
C16—C17—C18—C13 | −0.9 (3) | C30—C25—P2—C31 | 25.69 (16) |
C14—C13—C18—C17 | 1.0 (3) | C26—C25—P2—Rh1 | −31.31 (16) |
P1—C13—C18—C17 | 179.91 (15) | C30—C25—P2—Rh1 | 151.90 (13) |
C24—C19—C20—C21 | −1.1 (3) | C24—C19—P2—C25 | 15.80 (16) |
P2—C19—C20—C21 | 176.43 (14) | C20—C19—P2—C25 | −161.65 (14) |
C19—C20—C21—C22 | −1.5 (3) | C24—C19—P2—C31 | −94.30 (15) |
C20—C21—C22—C23 | 3.3 (3) | C20—C19—P2—C31 | 88.26 (15) |
C20—C21—C22—Cl4 | −174.74 (15) | C24—C19—P2—Rh1 | 145.08 (13) |
C21—C22—C23—C24 | −2.4 (3) | C20—C19—P2—Rh1 | −32.37 (15) |
Cl4—C22—C23—C24 | 175.62 (15) | C36—C31—P2—C25 | −139.07 (14) |
C20—C19—C24—C23 | 2.0 (3) | C32—C31—P2—C25 | 52.33 (16) |
P2—C19—C24—C23 | −175.44 (14) | C36—C31—P2—C19 | −29.59 (16) |
C22—C23—C24—C19 | −0.3 (3) | C32—C31—P2—C19 | 161.81 (14) |
C30—C25—C26—C27 | −0.9 (3) | C36—C31—P2—Rh1 | 90.20 (14) |
P2—C25—C26—C27 | −177.74 (14) | C32—C31—P2—Rh1 | −78.39 (15) |
C25—C26—C27—C28 | −0.1 (3) | C1—P1—Rh1—C37 | 119.85 (8) |
C26—C27—C28—C29 | 1.2 (3) | C7—P1—Rh1—C37 | −118.47 (8) |
C26—C27—C28—Cl5 | −178.26 (14) | C13—P1—Rh1—C37 | 1.69 (8) |
C27—C28—C29—C30 | −1.2 (3) | C1—P1—Rh1—Cl1 | −60.55 (6) |
Cl5—C28—C29—C30 | 178.27 (15) | C7—P1—Rh1—Cl1 | 61.14 (6) |
C28—C29—C30—C25 | 0.1 (3) | C13—P1—Rh1—Cl1 | −178.70 (6) |
C26—C25—C30—C29 | 0.9 (3) | C25—P2—Rh1—C37 | −116.11 (8) |
P2—C25—C30—C29 | 177.70 (14) | C19—P2—Rh1—C37 | 123.26 (8) |
C36—C31—C32—C33 | −2.2 (3) | C31—P2—Rh1—C37 | 6.83 (8) |
P2—C31—C32—C33 | 166.64 (14) | C25—P2—Rh1—Cl1 | 64.39 (7) |
C31—C32—C33—C34 | 0.1 (3) | C19—P2—Rh1—Cl1 | −56.23 (6) |
C32—C33—C34—C35 | 2.1 (3) | C31—P2—Rh1—Cl1 | −172.66 (6) |
D—H···A | D—H | H···A | D···A | D—H···A |
C15—H15···O2i | 0.95 | 2.55 | 3.492 (3) | 170 |
C21—H21···O2ii | 0.95 | 2.34 | 3.267 (3) | 165 |
C24—H24···Cl5iii | 0.95 | 2.80 | 3.4734 (19) | 129 |
C30—H30···Cl4iv | 0.95 | 2.76 | 3.575 (2) | 145 |
C35—H35···O1v | 0.95 | 2.47 | 3.384 (2) | 161 |
C40—H40B···Cl1 | 0.98 | 2.79 | 3.738 (3) | 162 |
Symmetry codes: (i) x, y+1, z; (ii) x+1, y, z; (iii) −x+1, −y, −z+1; (iv) −x+2, −y, −z+1; (v) −x+2, −y+1, −z+1. |
Experimental details
Crystal data | |
Chemical formula | [RhCl(C18H12Cl3P)2(CO)]·C3H6O |
Mr | 955.64 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 100 |
a, b, c (Å) | 10.6130 (7), 12.7970 (8), 16.7470 (11) |
α, β, γ (°) | 71.631 (1), 81.742 (1), 68.537 (1) |
V (Å3) | 2007.9 (2) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 1.01 |
Crystal size (mm) | 0.37 × 0.17 × 0.07 |
Data collection | |
Diffractometer | Bruker X8 APEXII 4K KappaCCD |
Absorption correction | Multi-scan (SADABS; Bruker, 2007) |
Tmin, Tmax | 0.707, 0.933 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 25954, 10031, 9160 |
Rint | 0.023 |
(sin θ/λ)max (Å−1) | 0.669 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.026, 0.069, 1.04 |
No. of reflections | 10031 |
No. of parameters | 471 |
No. of restraints | 4 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 1.17, −0.69 |
Computer programs: APEX2 (Bruker, 2007), SAINT-Plus (Bruker, 2007), SAINT-Plus and XPREP (Bruker, 2007), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), DIAMOND (Brandenburg & Putz, 2005) and ORTEP-3 (Farrugia, 1997), WinGX (Farrugia, 1999).
C37—O1 | 1.1420 (18) | P2—Rh1 | 2.3219 (4) |
C37—Rh1 | 1.8177 (13) | Cl1—Rh1 | 2.3611 (4) |
P1—Rh1 | 2.3127 (4) | ||
O1—C37—Rh1 | 179.52 (16) | P1—Rh1—Cl1 | 86.675 (15) |
P1—Rh1—P2 | 175.268 (15) | P2—Rh1—Cl1 | 90.348 (15) |
C37—Rh1—Cl1 | 178.21 (5) |
D—H···A | D—H | H···A | D···A | D—H···A |
C15—H15···O2i | 0.95 | 2.55 | 3.492 (3) | 169.5 |
C21—H21···O2ii | 0.95 | 2.34 | 3.267 (3) | 165.4 |
C24—H24···Cl5iii | 0.95 | 2.80 | 3.4734 (19) | 128.8 |
C30—H30···Cl4iv | 0.95 | 2.76 | 3.575 (2) | 144.9 |
C35—H35···O1v | 0.95 | 2.47 | 3.384 (2) | 161.2 |
C40—H40B···Cl1 | 0.98 | 2.79 | 3.738 (3) | 162 |
Symmetry codes: (i) x, y+1, z; (ii) x+1, y, z; (iii) −x+1, −y, −z+1; (iv) −x+2, −y, −z+1; (v) −x+2, −y+1, −z+1. |
Acknowledgements
ARB thanks the Research Academy for Undergraduates, University of Johannesburg, for financial support. Financial assistance from the South African National Research Foundation and the University of Johannesburg is also gratefully acknowledged.
References
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The original Vaska complex, trans-[IrCl(CO)(PPh3)2], was first reported in 1959 (Angoletta, 1959), but later correctly formulated by Vaska in 1961 (Vaska & Di Luzio, 1961). This class of symmetrical square-planar complexes often crystallizes with the metal atom on a crystallographic centre of symmetry, thus imposing a disordered packing arrangement (Otto, 2001; Otto et al., 2000; Chen et al., 1991; Kuwabara & Bau, 1994). We report the title compound as one of the few crystallographic examples of this group which does not show disorder along the carbonyl/chloro axis.
Compound (I) crystallizes in a triclinic space group. The crystal structure of trans-[RhCl(CO){P(4-ClC6H4)3}2] (Fig.1) shows the expected square planar geometry with the phosphine ligands trans to each other.
As seen in Fig. 1 and Table 1, the complex shows a non-equally spaced square planar coordination centre with the P—Rh—P angle being 175.27 (2) °. The 1J(Rh—P) coupling of 128 Hz is in agreement with the coupling constants for other rhodium Vaska type complexes of this nature (Meijboom et al., 2005).
Table 1 shows the angles C37—Rh—P1 and C37—Rh—P2 are nearly equal, while P2—Rh—Cl is 90.348 (15) ° and P1—Rh—Cl is only 86.675 (15) °. This inequality around the chlorine's displacement is interesting as the most linear hydrogen bond involving Cl1 is between C40—H40···Cl1 (162 °, Table 2) pulling it towards C40—H40 and thus decreasing the angle of P1—Rh—Cl. Additionally, the rhodium complexes link each other via weak intermolecular C—H···O and C—H···Cl hydrogen bonds (Table 2). The weak interactions between the acetone solvent molecule and the Rh—Cl unit resulted in a reduced P—Rh—Cl angle of 86.675 (15)°.
The ν(CO) stretching frequency of compound (1) is 1985 cm-1 which is higher than that of [Rh(CO)Cl{P(C6H5)3}2], the unchloronated version, which was reported by Roodt (Roodt et al., 2003) as 1979 cm-1. The increase is due to the moderate electron withdrawing capabilities of the para-substituted chlorine on the phenyl rings.