metal-organic compounds
Dicarbonyldichloridobis(trimethylphosphane)iron(II)–carbonyldichloridotris(trimethylphosphane)iron(II)–tetrahydrofuran (1/1/2)
aDepartment of Chemistry and Biochemistry and Center for Nanoscience, University of Missouri–St Louis, 1 University Boulevard, St Louis, MO 63121-4400, USA, and bDepartment of Chemistry, Washington University, One Brookings Drive, St Louis, MO 63130-4899, USA
*Correspondence e-mail: rathn@umsl.edu
The 2(C3H9P)3(CO)]·[FeCl2(C3H9P)2(CO)2]·2C4H8O, contains half molecules of the two closely related FeII complexes lying on mirror planes and a tetrahydrofuran solvent molecule, one C atom of which is disordered over two sets of sites with site occupancy factors 0.633 (9) and 0.367 (9). In both FeII complex molecules, a distorted octahedral coordination geometry has been observed around the Fe atoms. Weak intermolecular C—H⋯O interactions are observed in the crystal structure.
of the title crystal, [FeClRelated literature
For the synthetic background, see: Harris et al. (1978). For the of a related complex, see: Venturi et al. (2004).
Experimental
Crystal data
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Refinement
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Data collection: APEX2 (Bruker, 2010); cell SAINT (Bruker, 2009); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008) and Mercury (Macrae et al., 2008); software used to prepare material for publication: SHELXTL and PLATON (Spek, 2009).
Supporting information
10.1107/S1600536811009305/pv2394sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536811009305/pv2394Isup2.hkl
FeCl2 (0.21 g, 1.62 x 10 -3 mol) and PMe3 (0.40 ml, 3.86 x 10-3) were stirred in 20 ml of THF for 10 min, producing a clear gray solution of Cl2Fe(PMe3)2 (Harris et al., 1978) in the presence of excess PMe3. Carbon monoxide was then bubbled through the solution until the color changed to an intense orange. The THF solvent was removed under vacuum and the resulting powder was extracted with pentane. After filtration through Celite, the pentane was removed under vacuum. The product was dissolved in a 1:2 mixture of THF and pentane and cooled to 243 K, causing orange crystals to form overnight.
H atoms bonded to the C atoms located on the mirror planes were located in a difference map and refined using a riding model. Other H atoms were calculated with idealized geometries with C–H = 0.98 and 0.99 Å for methyl and methylene type H-atoms, respectively, and refined using a riding model with Uiso(H) = 1.2 (1.5 for methyl groups) times Ueq(C). A molecule of THF was located in the
wherein C4 was disordered with partial occupancy factors 0.633 (9) and 0.367 (9).Data collection: APEX2 (Bruker, 2010); cell
SAINT (Bruker, 2009); data reduction: SAINT (Bruker, 2009); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008) and Mercury (Macrae, et al., 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008) and PLATON (Spek, 2009).[FeCl2(C3H9P)3(CO)]·[FeCl2(C3H9P)2(CO)2]·2C4H8O | Dx = 1.397 Mg m−3 |
Mr = 862.10 | Mo Kα radiation, λ = 0.71073 Å |
Orthorhombic, Pnma | Cell parameters from 9975 reflections |
a = 10.8391 (9) Å | θ = 2.6–27.4° |
b = 16.9670 (12) Å | µ = 1.20 mm−1 |
c = 22.2871 (18) Å | T = 100 K |
V = 4098.8 (6) Å3 | Plate, light yellow |
Z = 4 | 0.20 × 0.12 × 0.10 mm |
F(000) = 1808 |
Bruker APEXII CCD diffractometer | 4904 independent reflections |
Radiation source: fine-focus sealed tube | 3939 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.090 |
Detector resolution: 8.3333 pixels mm-1 | θmax = 27.6°, θmin = 1.5° |
ϕ and ω scans | h = −14→14 |
Absorption correction: multi-scan (SADABS; Bruker, 2008) | k = −21→22 |
Tmin = 0.800, Tmax = 0.895 | l = −29→29 |
144514 measured 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)] = 0.034 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.081 | H-atom parameters constrained |
S = 1.06 | w = 1/[σ2(Fo2) + (0.0323P)2 + 5.017P] where P = (Fo2 + 2Fc2)/3 |
4904 reflections | (Δ/σ)max = 0.002 |
218 parameters | Δρmax = 0.68 e Å−3 |
1 restraint | Δρmin = −0.70 e Å−3 |
[FeCl2(C3H9P)3(CO)]·[FeCl2(C3H9P)2(CO)2]·2C4H8O | V = 4098.8 (6) Å3 |
Mr = 862.10 | Z = 4 |
Orthorhombic, Pnma | Mo Kα radiation |
a = 10.8391 (9) Å | µ = 1.20 mm−1 |
b = 16.9670 (12) Å | T = 100 K |
c = 22.2871 (18) Å | 0.20 × 0.12 × 0.10 mm |
Bruker APEXII CCD diffractometer | 4904 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2008) | 3939 reflections with I > 2σ(I) |
Tmin = 0.800, Tmax = 0.895 | Rint = 0.090 |
144514 measured reflections |
R[F2 > 2σ(F2)] = 0.034 | 1 restraint |
wR(F2) = 0.081 | H-atom parameters constrained |
S = 1.06 | Δρmax = 0.68 e Å−3 |
4904 reflections | Δρmin = −0.70 e Å−3 |
218 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. |
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. SHELX restraints used: delu o2 c2 |
x | y | z | Uiso*/Ueq | Occ. (<1) | |
Fe1 | 0.74441 (4) | 0.2500 | 0.609986 (19) | 0.01347 (10) | |
Cl1 | 0.64447 (5) | 0.14941 (3) | 0.66198 (2) | 0.02064 (12) | |
P1 | 0.89145 (8) | 0.2500 | 0.68214 (4) | 0.01903 (18) | |
P2 | 0.58528 (8) | 0.2500 | 0.54398 (4) | 0.01575 (17) | |
O1 | 0.86416 (17) | 0.37737 (10) | 0.54685 (8) | 0.0268 (4) | |
C1 | 0.8188 (2) | 0.32598 (13) | 0.57122 (10) | 0.0180 (5) | |
C11 | 0.9949 (3) | 0.33405 (17) | 0.68026 (13) | 0.0353 (7) | |
H11A | 0.9465 | 0.3828 | 0.6812 | 0.053* | |
H11B | 1.0441 | 0.3324 | 0.6434 | 0.053* | |
H11C | 1.0498 | 0.3323 | 0.7152 | 0.053* | |
C12 | 0.8343 (4) | 0.2500 | 0.75831 (15) | 0.0277 (8) | |
H12A | 0.7861 | 0.2036 | 0.7650 | 0.042* | |
H12B | 0.9084 | 0.2500 | 0.7829 | 0.042* | |
C21 | 0.5823 (2) | 0.33398 (15) | 0.49372 (12) | 0.0258 (5) | |
H21A | 0.5116 | 0.3294 | 0.4665 | 0.039* | |
H21B | 0.6587 | 0.3354 | 0.4703 | 0.039* | |
H21C | 0.5749 | 0.3826 | 0.5172 | 0.039* | |
C22 | 0.4336 (3) | 0.2500 | 0.57645 (16) | 0.0263 (8) | |
H22A | 0.3697 | 0.2500 | 0.5460 | 0.039* | |
H22B | 0.4224 | 0.2044 | 0.6013 | 0.039* | |
Fe2 | 0.39182 (4) | 0.7500 | 0.91114 (2) | 0.01534 (11) | |
Cl2 | 0.17671 (7) | 0.7500 | 0.90064 (4) | 0.02288 (17) | |
Cl3 | 0.38648 (9) | 0.7500 | 1.01832 (4) | 0.0306 (2) | |
P3 | 0.43591 (8) | 0.7500 | 0.81372 (4) | 0.01842 (18) | |
P4 | 0.36847 (6) | 0.61635 (3) | 0.91539 (3) | 0.01807 (13) | |
O2 | 0.6473 (3) | 0.7500 | 0.92770 (12) | 0.0318 (6) | |
C2 | 0.5567 (5) | 0.7500 | 0.92171 (15) | 0.0287 (9) | |
C31 | 0.3099 (3) | 0.7500 | 0.76165 (16) | 0.0280 (8) | |
H31A | 0.3440 | 0.7500 | 0.7207 | 0.042* | |
H31B | 0.2601 | 0.7974 | 0.7654 | 0.042* | |
C32 | 0.5302 (2) | 0.66852 (14) | 0.78642 (11) | 0.0229 (5) | |
H32A | 0.4848 | 0.6189 | 0.7912 | 0.034* | |
H32B | 0.6071 | 0.6661 | 0.8095 | 0.034* | |
H32C | 0.5493 | 0.6767 | 0.7439 | 0.034* | |
C41 | 0.2881 (3) | 0.58171 (15) | 0.98174 (11) | 0.0291 (6) | |
H41A | 0.2086 | 0.6088 | 0.9851 | 0.044* | |
H41B | 0.3381 | 0.5929 | 1.0174 | 0.044* | |
H41C | 0.2743 | 0.5248 | 0.9786 | 0.044* | |
C42 | 0.2761 (2) | 0.56933 (14) | 0.85754 (11) | 0.0247 (5) | |
H42A | 0.2698 | 0.5128 | 0.8659 | 0.037* | |
H42B | 0.3152 | 0.5772 | 0.8184 | 0.037* | |
H42C | 0.1933 | 0.5926 | 0.8572 | 0.037* | |
C43 | 0.5079 (2) | 0.55672 (14) | 0.91735 (11) | 0.0240 (5) | |
H43A | 0.5573 | 0.5712 | 0.9525 | 0.036* | |
H43B | 0.5560 | 0.5659 | 0.8808 | 0.036* | |
H43C | 0.4855 | 0.5009 | 0.9198 | 0.036* | |
C1S | 0.7599 (3) | 0.48598 (17) | 0.79495 (13) | 0.0420 (7) | |
H1S1 | 0.7804 | 0.4575 | 0.7575 | 0.050* | |
H1S2 | 0.6691 | 0.4908 | 0.7978 | 0.050* | |
C2S | 0.8096 (3) | 0.44219 (17) | 0.84835 (14) | 0.0413 (7) | |
H2S1 | 0.7417 | 0.4181 | 0.8717 | 0.050* | |
H2S2 | 0.8672 | 0.4001 | 0.8355 | 0.050* | |
C3S | 0.8759 (3) | 0.50294 (18) | 0.88488 (13) | 0.0400 (7) | |
H3S1 | 0.8205 | 0.5280 | 0.9146 | 0.048* | 0.633 (9) |
H3S2 | 0.9481 | 0.4801 | 0.9059 | 0.048* | 0.633 (9) |
C4S | 0.9139 (6) | 0.5590 (4) | 0.8379 (3) | 0.0371 (13) | 0.633 (9) |
H4S1 | 0.9280 | 0.6118 | 0.8555 | 0.044* | 0.633 (9) |
H4S2 | 0.9912 | 0.5411 | 0.8186 | 0.044* | 0.633 (9) |
O1S | 0.8150 (2) | 0.56183 (12) | 0.79471 (9) | 0.0454 (6) | |
H3S3 | 0.9638 | 0.4884 | 0.8897 | 0.048* | 0.367 (9) |
H3S4 | 0.8382 | 0.5075 | 0.9252 | 0.048* | 0.367 (9) |
C4S' | 0.8641 (11) | 0.5827 (7) | 0.8499 (5) | 0.0371 (13) | 0.367 (9) |
H4S3 | 0.8085 | 0.6195 | 0.8713 | 0.044* | 0.367 (9) |
H4S4 | 0.9457 | 0.6080 | 0.8450 | 0.044* | 0.367 (9) |
U11 | U22 | U33 | U12 | U13 | U23 | |
Fe1 | 0.0166 (2) | 0.0124 (2) | 0.0114 (2) | 0.000 | −0.00049 (17) | 0.000 |
Cl1 | 0.0240 (3) | 0.0195 (3) | 0.0184 (3) | −0.0034 (2) | 0.0011 (2) | 0.0051 (2) |
P1 | 0.0192 (4) | 0.0221 (4) | 0.0157 (4) | 0.000 | −0.0032 (3) | 0.000 |
P2 | 0.0188 (4) | 0.0154 (4) | 0.0130 (4) | 0.000 | −0.0015 (3) | 0.000 |
O1 | 0.0345 (10) | 0.0197 (9) | 0.0262 (9) | −0.0062 (7) | 0.0047 (8) | 0.0025 (7) |
C1 | 0.0199 (11) | 0.0182 (11) | 0.0159 (11) | 0.0019 (9) | −0.0024 (9) | −0.0033 (9) |
C11 | 0.0331 (15) | 0.0431 (16) | 0.0295 (14) | −0.0166 (12) | −0.0103 (12) | 0.0045 (12) |
C12 | 0.032 (2) | 0.036 (2) | 0.0151 (17) | 0.000 | −0.0034 (15) | 0.000 |
C21 | 0.0278 (13) | 0.0243 (13) | 0.0253 (13) | 0.0000 (10) | −0.0057 (10) | 0.0076 (10) |
C22 | 0.0202 (17) | 0.035 (2) | 0.0233 (18) | 0.000 | −0.0009 (14) | 0.000 |
Fe2 | 0.0170 (2) | 0.0139 (2) | 0.0151 (2) | 0.000 | 0.00190 (18) | 0.000 |
Cl2 | 0.0173 (4) | 0.0231 (4) | 0.0282 (4) | 0.000 | 0.0019 (3) | 0.000 |
Cl3 | 0.0299 (5) | 0.0303 (5) | 0.0314 (5) | 0.000 | 0.0029 (4) | 0.000 |
P3 | 0.0199 (4) | 0.0185 (4) | 0.0168 (4) | 0.000 | −0.0012 (3) | 0.000 |
P4 | 0.0214 (3) | 0.0147 (3) | 0.0181 (3) | −0.0008 (2) | 0.0026 (2) | 0.0005 (2) |
O2 | 0.0430 (17) | 0.0244 (14) | 0.0281 (15) | 0.000 | 0.0089 (13) | 0.000 |
C2 | 0.066 (3) | 0.0088 (15) | 0.0116 (16) | 0.000 | 0.0014 (18) | 0.000 |
C31 | 0.0295 (19) | 0.0314 (19) | 0.0231 (18) | 0.000 | −0.0049 (15) | 0.000 |
C32 | 0.0262 (12) | 0.0209 (12) | 0.0216 (12) | 0.0000 (9) | 0.0044 (10) | −0.0014 (9) |
C41 | 0.0387 (15) | 0.0201 (12) | 0.0284 (13) | −0.0003 (11) | 0.0112 (12) | 0.0053 (10) |
C42 | 0.0257 (13) | 0.0197 (12) | 0.0287 (13) | −0.0063 (10) | −0.0027 (10) | −0.0017 (10) |
C43 | 0.0267 (13) | 0.0182 (12) | 0.0272 (13) | 0.0027 (10) | −0.0013 (10) | −0.0005 (10) |
C1S | 0.066 (2) | 0.0282 (15) | 0.0321 (15) | −0.0039 (14) | −0.0086 (15) | −0.0017 (12) |
C2S | 0.055 (2) | 0.0303 (15) | 0.0383 (17) | −0.0008 (14) | −0.0094 (15) | 0.0058 (13) |
C3S | 0.0549 (19) | 0.0383 (17) | 0.0269 (14) | −0.0017 (14) | −0.0064 (14) | 0.0052 (12) |
C4S | 0.040 (4) | 0.042 (3) | 0.029 (3) | −0.013 (2) | −0.008 (2) | 0.005 (2) |
O1S | 0.0659 (15) | 0.0324 (11) | 0.0378 (12) | −0.0139 (10) | −0.0191 (11) | 0.0110 (9) |
C3S' | 0.0549 (19) | 0.0383 (17) | 0.0269 (14) | −0.0017 (14) | −0.0064 (14) | 0.0052 (12) |
C4S' | 0.040 (4) | 0.042 (3) | 0.029 (3) | −0.013 (2) | −0.008 (2) | 0.005 (2) |
O1S' | 0.0659 (15) | 0.0324 (11) | 0.0378 (12) | −0.0139 (10) | −0.0191 (11) | 0.0110 (9) |
Fe1—C1i | 1.749 (2) | P4—C42 | 1.817 (2) |
Fe1—C1 | 1.749 (2) | P4—C43 | 1.819 (2) |
Fe1—P1 | 2.2641 (10) | O2—C2 | 0.991 (5) |
Fe1—P2 | 2.2670 (9) | C31—H31A | 0.9837 |
Fe1—Cl1i | 2.3300 (6) | C31—H31B | 0.9732 |
Fe1—Cl1 | 2.3300 (6) | C32—H32A | 0.9800 |
P1—C12 | 1.807 (4) | C32—H32B | 0.9800 |
P1—C11 | 1.814 (3) | C32—H32C | 0.9800 |
P1—C11i | 1.814 (3) | C41—H41A | 0.9800 |
P2—C22 | 1.796 (4) | C41—H41B | 0.9800 |
P2—C21 | 1.813 (2) | C41—H41C | 0.9800 |
P2—C21i | 1.813 (2) | C42—H42A | 0.9800 |
O1—C1 | 1.139 (3) | C42—H42B | 0.9800 |
C11—H11A | 0.9800 | C42—H42C | 0.9800 |
C11—H11B | 0.9800 | C43—H43A | 0.9800 |
C11—H11C | 0.9800 | C43—H43B | 0.9800 |
C12—H12A | 0.9565 | C43—H43C | 0.9800 |
C12—H12B | 0.9731 | C1S—O1S | 1.419 (3) |
C21—H21A | 0.9800 | C1S—C2S | 1.503 (4) |
C21—H21B | 0.9800 | C1S—H1S1 | 0.9899 |
C21—H21C | 0.9800 | C1S—H1S2 | 0.9896 |
C22—H22A | 0.9693 | C2S—C3S | 1.497 (4) |
C22—H22B | 0.9597 | C2S—H2S1 | 0.9895 |
Fe2—C2 | 1.803 (5) | C2S—H2S2 | 0.9908 |
Fe2—P3 | 2.2232 (10) | C3S—C4S | 1.472 (6) |
Fe2—P4ii | 2.2837 (6) | C3S—H3S1 | 0.9900 |
Fe2—P4 | 2.2838 (6) | C3S—H3S2 | 0.9900 |
Fe2—Cl2 | 2.3433 (9) | C4S—O1S | 1.442 (6) |
Fe2—Cl3 | 2.3895 (11) | C4S—H4S1 | 0.9900 |
P3—C31 | 1.792 (4) | C4S—H4S2 | 0.9900 |
P3—C32 | 1.823 (2) | C4S'—H4S3 | 0.9900 |
P3—C32ii | 1.823 (2) | C4S'—H4S4 | 0.9900 |
P4—C41 | 1.814 (2) | ||
C1i—Fe1—C1 | 94.97 (15) | C31—P3—Fe2 | 117.95 (13) |
C1i—Fe1—P1 | 91.50 (8) | C32—P3—Fe2 | 116.50 (8) |
C1—Fe1—P1 | 91.50 (8) | C32ii—P3—Fe2 | 116.50 (8) |
C1i—Fe1—P2 | 91.74 (8) | C41—P4—C42 | 99.88 (13) |
C1—Fe1—P2 | 91.74 (8) | C41—P4—C43 | 101.48 (12) |
P1—Fe1—P2 | 175.20 (4) | C42—P4—C43 | 103.34 (12) |
C1i—Fe1—Cl1i | 179.61 (8) | C41—P4—Fe2 | 114.12 (9) |
C1—Fe1—Cl1i | 85.42 (7) | C42—P4—Fe2 | 117.88 (8) |
P1—Fe1—Cl1i | 88.51 (2) | C43—P4—Fe2 | 117.46 (8) |
P2—Fe1—Cl1i | 88.22 (2) | O2—C2—Fe2 | 179.8 (4) |
C1i—Fe1—Cl1 | 85.42 (7) | P3—C31—H31A | 108.3 |
C1—Fe1—Cl1 | 179.61 (8) | P3—C31—H31B | 111.6 |
P1—Fe1—Cl1 | 88.51 (2) | H31A—C31—H31B | 106.7 |
P2—Fe1—Cl1 | 88.22 (2) | P3—C32—H32A | 109.5 |
Cl1i—Fe1—Cl1 | 94.19 (3) | P3—C32—H32B | 109.5 |
C12—P1—C11 | 103.51 (12) | H32A—C32—H32B | 109.5 |
C12—P1—C11i | 103.51 (12) | P3—C32—H32C | 109.5 |
C11—P1—C11i | 103.6 (2) | H32A—C32—H32C | 109.5 |
C12—P1—Fe1 | 115.20 (13) | H32B—C32—H32C | 109.5 |
C11—P1—Fe1 | 114.74 (9) | P4—C41—H41A | 109.5 |
C11i—P1—Fe1 | 114.74 (9) | P4—C41—H41B | 109.5 |
C22—P2—C21 | 103.45 (11) | H41A—C41—H41B | 109.5 |
C22—P2—C21i | 103.45 (11) | P4—C41—H41C | 109.5 |
C21—P2—C21i | 103.62 (18) | H41A—C41—H41C | 109.5 |
C22—P2—Fe1 | 115.78 (12) | H41B—C41—H41C | 109.5 |
C21—P2—Fe1 | 114.50 (9) | P4—C42—H42A | 109.5 |
C21i—P2—Fe1 | 114.50 (9) | P4—C42—H42B | 109.5 |
O1—C1—Fe1 | 177.4 (2) | H42A—C42—H42B | 109.5 |
P1—C11—H11A | 109.5 | P4—C42—H42C | 109.5 |
P1—C11—H11B | 109.5 | H42A—C42—H42C | 109.5 |
H11A—C11—H11B | 109.5 | H42B—C42—H42C | 109.5 |
P1—C11—H11C | 109.5 | P4—C43—H43A | 109.5 |
H11A—C11—H11C | 109.5 | P4—C43—H43B | 109.5 |
H11B—C11—H11C | 109.5 | H43A—C43—H43B | 109.5 |
P1—C12—H12A | 109.5 | P4—C43—H43C | 109.5 |
P1—C12—H12B | 104.3 | H43A—C43—H43C | 109.5 |
H12A—C12—H12B | 111.3 | H43B—C43—H43C | 109.5 |
P2—C21—H21A | 109.5 | O1S—C1S—C2S | 107.5 (2) |
P2—C21—H21B | 109.5 | O1S—C1S—H1S1 | 110.2 |
H21A—C21—H21B | 109.5 | C2S—C1S—H1S1 | 110.2 |
P2—C21—H21C | 109.5 | O1S—C1S—H1S2 | 110.1 |
H21A—C21—H21C | 109.5 | C2S—C1S—H1S2 | 110.3 |
H21B—C21—H21C | 109.5 | H1S1—C1S—H1S2 | 108.5 |
P2—C22—H22A | 111.9 | C3S—C2S—C1S | 105.2 (2) |
P2—C22—H22B | 110.4 | C3S—C2S—H2S1 | 110.8 |
H22A—C22—H22B | 108.2 | C1S—C2S—H2S1 | 110.7 |
C2—Fe2—P3 | 85.09 (11) | C3S—C2S—H2S2 | 110.5 |
C2—Fe2—P4ii | 96.00 (2) | C1S—C2S—H2S2 | 110.7 |
P3—Fe2—P4ii | 93.689 (19) | H2S1—C2S—H2S2 | 108.9 |
C2—Fe2—P4 | 96.00 (2) | C4S—C3S—C2S | 101.1 (3) |
P3—Fe2—P4 | 93.687 (19) | C4S—C3S—H3S1 | 111.6 |
P4ii—Fe2—P4 | 166.40 (4) | C2S—C3S—H3S1 | 111.6 |
C2—Fe2—Cl2 | 178.23 (11) | C4S—C3S—H3S2 | 111.6 |
P3—Fe2—Cl2 | 96.68 (4) | C2S—C3S—H3S2 | 111.6 |
P4ii—Fe2—Cl2 | 83.905 (19) | H3S1—C3S—H3S2 | 109.4 |
P4—Fe2—Cl2 | 83.906 (19) | O1S—C4S—C3S | 106.8 (4) |
C2—Fe2—Cl3 | 83.88 (11) | O1S—C4S—H4S1 | 110.4 |
P3—Fe2—Cl3 | 168.98 (4) | C3S—C4S—H4S1 | 110.4 |
P4ii—Fe2—Cl3 | 87.469 (19) | O1S—C4S—H4S2 | 110.4 |
P4—Fe2—Cl3 | 87.471 (19) | C3S—C4S—H4S2 | 110.4 |
Cl2—Fe2—Cl3 | 94.34 (3) | H4S1—C4S—H4S2 | 108.6 |
C31—P3—C32 | 102.17 (11) | C1S—O1S—C4S | 106.3 (3) |
C31—P3—C32ii | 102.17 (11) | H4S3—C4S'—H4S4 | 108.9 |
C32—P3—C32ii | 98.60 (16) | ||
C1i—Fe1—P1—C12 | −132.49 (7) | P4ii—Fe2—P3—C32 | 153.62 (10) |
C1—Fe1—P1—C12 | 132.49 (7) | P4—Fe2—P3—C32 | −37.81 (10) |
Cl1i—Fe1—P1—C12 | 47.118 (16) | Cl2—Fe2—P3—C32 | −122.09 (9) |
Cl1—Fe1—P1—C12 | −47.117 (16) | Cl3—Fe2—P3—C32 | 57.91 (9) |
C1i—Fe1—P1—C11 | 107.43 (14) | C2—Fe2—P3—C32ii | −57.91 (9) |
C1—Fe1—P1—C11 | 12.42 (14) | P4ii—Fe2—P3—C32ii | 37.81 (10) |
Cl1i—Fe1—P1—C11 | −72.95 (12) | P4—Fe2—P3—C32ii | −153.62 (9) |
Cl1—Fe1—P1—C11 | −167.19 (12) | Cl2—Fe2—P3—C32ii | 122.09 (9) |
C1i—Fe1—P1—C11i | −12.42 (14) | Cl3—Fe2—P3—C32ii | −57.91 (9) |
C1—Fe1—P1—C11i | −107.43 (14) | C2—Fe2—P4—C41 | 111.10 (15) |
Cl1i—Fe1—P1—C11i | 167.19 (12) | P3—Fe2—P4—C41 | −163.46 (11) |
Cl1—Fe1—P1—C11i | 72.96 (12) | P4ii—Fe2—P4—C41 | −40.7 (2) |
C1i—Fe1—P2—C22 | 132.49 (7) | Cl2—Fe2—P4—C41 | −67.12 (11) |
C1—Fe1—P2—C22 | −132.49 (7) | Cl3—Fe2—P4—C41 | 27.52 (11) |
Cl1i—Fe1—P2—C22 | −47.128 (16) | C2—Fe2—P4—C42 | −132.18 (15) |
Cl1—Fe1—P2—C22 | 47.126 (16) | P3—Fe2—P4—C42 | −46.74 (10) |
C1i—Fe1—P2—C21 | −107.25 (12) | P4ii—Fe2—P4—C42 | 76.00 (19) |
C1—Fe1—P2—C21 | −12.23 (12) | Cl2—Fe2—P4—C42 | 49.60 (10) |
Cl1i—Fe1—P2—C21 | 73.13 (10) | Cl3—Fe2—P4—C42 | 144.24 (10) |
Cl1—Fe1—P2—C21 | 167.38 (10) | C2—Fe2—P4—C43 | −7.49 (15) |
C1i—Fe1—P2—C21i | 12.23 (12) | P3—Fe2—P4—C43 | 77.96 (10) |
C1—Fe1—P2—C21i | 107.25 (12) | P4ii—Fe2—P4—C43 | −159.30 (17) |
Cl1i—Fe1—P2—C21i | −167.39 (10) | Cl2—Fe2—P4—C43 | 174.30 (10) |
Cl1—Fe1—P2—C21i | −73.14 (10) | Cl3—Fe2—P4—C43 | −91.06 (10) |
C2—Fe2—P3—C31 | 180.0 | O1S—C1S—C2S—C3S | 11.0 (4) |
P4ii—Fe2—P3—C31 | −84.29 (2) | C1S—C2S—C3S—C4S | −28.5 (4) |
P4—Fe2—P3—C31 | 84.29 (2) | C2S—C3S—C4S—O1S | 36.8 (5) |
Cl2—Fe2—P3—C31 | 0.0 | C2S—C1S—O1S—C4S | 11.8 (4) |
Cl3—Fe2—P3—C31 | 180.000 (1) | C3S—C4S—O1S—C1S | −31.1 (6) |
C2—Fe2—P3—C32 | 57.91 (9) |
Symmetry codes: (i) x, −y+1/2, z; (ii) x, −y+3/2, z. |
D—H···A | D—H | H···A | D···A | D—H···A |
C42—H42B···O1Siii | 0.98 | 2.53 | 3.422 (3) | 151 |
C43—H43C···O1iii | 0.98 | 2.58 | 3.510 (3) | 158 |
C43—H43A···O1iv | 0.98 | 2.43 | 3.392 (3) | 167 |
Symmetry codes: (iii) x−1/2, y, −z+3/2; (iv) −x+3/2, −y+1, z+1/2. |
Experimental details
Crystal data | |
Chemical formula | [FeCl2(C3H9P)3(CO)]·[FeCl2(C3H9P)2(CO)2]·2C4H8O |
Mr | 862.10 |
Crystal system, space group | Orthorhombic, Pnma |
Temperature (K) | 100 |
a, b, c (Å) | 10.8391 (9), 16.9670 (12), 22.2871 (18) |
V (Å3) | 4098.8 (6) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 1.20 |
Crystal size (mm) | 0.20 × 0.12 × 0.10 |
Data collection | |
Diffractometer | Bruker APEXII CCD diffractometer |
Absorption correction | Multi-scan (SADABS; Bruker, 2008) |
Tmin, Tmax | 0.800, 0.895 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 144514, 4904, 3939 |
Rint | 0.090 |
(sin θ/λ)max (Å−1) | 0.652 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.034, 0.081, 1.06 |
No. of reflections | 4904 |
No. of parameters | 218 |
No. of restraints | 1 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.68, −0.70 |
Computer programs: APEX2 (Bruker, 2010), SAINT (Bruker, 2009), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008) and Mercury (Macrae, et al., 2008), SHELXTL (Sheldrick, 2008) and PLATON (Spek, 2009).
D—H···A | D—H | H···A | D···A | D—H···A |
C42—H42B···O1Si | 0.98 | 2.53 | 3.422 (3) | 151 |
C43—H43C···O1i | 0.98 | 2.58 | 3.510 (3) | 158 |
C43—H43A···O1ii | 0.98 | 2.43 | 3.392 (3) | 167 |
Symmetry codes: (i) x−1/2, y, −z+3/2; (ii) −x+3/2, −y+1, z+1/2. |
Acknowledgements
The authors acknowledge financial support from the National Science Foundation (grant No. CHE 0420497) for the purchase of the X-ray diffractometer.
References
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An interesting cocrystallization has occurred from a reaction of CO with Cl2Fe(PMe3)2, resulting in compound (I), C8H18Cl2FeO2P2, from the addition of two equivalents of CO to Cl2Fe(PMe3)2 and compound (II), C10H27Cl2FeOP3, probably from the addition of one equivalent of CO, followed by the rapid addition of one equivalent of free PMe3, which is present in the reaction solution. In this paper, we report the crystal structure of the two compounds, (I) and (II) which have been cocrystallized along with a molecule of tetrahydrofuran solvate per molecule of complex (Fig. 1).
The asymmetric unit of the title crystal contains half molecules of the two compounds, (I) and (II), lying on mirror planes and a molecule of tetrahydrofuran solvate, C4H8O; a carbon atom of the solvent molecule is disordered over two sites C4S and C4S' with site occupancy factors 0.633 (9) and 0.367 (9). In compound (I), the PMe3 ligands occupying axial positions, are trans with respect to each other with an angle of 175.20 (4)° and the CO and Cl are trans with respect to each other at equatorial positions. In compound (II), the trans PMe3 ligands are located at 166.41 (4)° to each other; the 3rd PMe3 is trans to a Cl. The octahedral coordination is completed with the 2nd Cl being trans to a CO ligand. In both compounds, the ligands around Fe lie in slightly distorted octahedral coordination geometry. An overlay plot of the two molecules drawn by Mercury (Macrae et al., 2008) shows the close similarity of the two molecules (Fig. 2).
There are weak intermolecular interactions of the type C–H···O which are observed between both the carbonyl O atoms of (I) and a methyl hydrogen atom of (II). The O of the solvent THF also has weak interactions with a methyl hydrogen atoms of (II) (Table 1).