metal-organic compounds
[(1R,2R)-2-Amino-1,2-diphenyl-N-(p-tolylsulfonyl)ethylamido]chloro(η6-ethoxybenzene)ruthenium(II) methanol solvate
aDepartment of Chemistry, Faculty of Science, University of Ilam, Ilam, Iran, and bDepartment of Chemistry, University of Sheffield, Sheffield S3 7HF, England
*Correspondence e-mail: janet_soleimannejad@yahoo.com
The title compound, [Ru(C21H21N2O2S)Cl(C8H10O)]·CH4O or [Ru(TsDPEN)Cl(η6-C6H5OCH2CH3)]·CH4O [where TsDPEN is (1R,2R)-1,2-diphenyl-N-(p-toluenesulfonyl)ethylenediamine], contains an S-chiral Ru centre in a distorted octahedral environment, with similar bond lengths and angles to analogous complexes. The very short (N—)H⋯Cl distance of 2.61 Å is ascribed to an intramolecular hydrogen bond.
Comment
Arene–ruthenium(II) derivatives are of interest both as reagents in organic chemistry (Pigge & Coniglio, 2001) and as catalysts for a wide range of reactions, including arene hydrogenation (Boxwell et al., 2002), alkene metathesis (Zaja et al., 2003) and Diels–Alder reactions (Davenport et al., 2004). Arene–ruthenium complexes containing chiral diamine ligands are of particular interest, since Noyori and co-workers (Noyori & Hashiguchi, 1997) have demonstrated that they are active enantioselective hydrogen-transfer catalysts. We have recently developed a simple method of synthesizing functionalized arene–ruthenium complexes, e.g. [RuCl2(η6-C6H5OCH2CH2OH)]2 (Soleimannejad & White, 2005), and we wish to exploit this using the functionality to link the arene to polymer supports in order to prepare easily recyclable `Noyori-type' catalysts (Soleimannejad et al., 2003). During this study, the title compound, (I), was synthesized, crystallizing with a methanol solvent molecule.
The Ru atom in (I) has a pseudo-octahedral geometry, being coordinated to a chloride ligand, an η6-arene occupying three facial coordination sites, and a five-membered chelate ligand with neutral amine and anionic sulfonamide moieties. The configuration of this chiral ruthenium centre is S (Stanley & Baird, 1975). The Ru—Cl bond length of 2.4526 (16) Å is slightly longer than those observed in the analogous complexes found in a search of the Cambridge Structural Database (CSD, Version 5.25; Allen, 2002), [RuCl(TsDPEN)(η6-1,4-MeC6H4CHMe2)] [2.435 (4) Å; CSD refcode TAXFON10; Haack et al., 1997] and [RuCl(TsDPEN)(η6-C6H5OCH2CH2OH)] [2.430 (4) Å; refcode OKAMIW; Soleimannejad et al., 2003], but in agreement with that reported for [RuCl{(1S,2S)-N-(SO2CF3)NCH(C6H5)CH(C6H5)NH2}(η6-C6H6)] [2.463 (3) Å; refcode ZALWIS; Hashiguchi et al., 1995]. The η6-arene ring in (I) is planar [average r.m.s. deviation from the plane Δ = 0.014 (4) Å], as are the other three arene rings [Δ 0.006 (4) Å for the C9–C14 ring, 0.008 (3) Å for the C15–C20 ring and 0.008 (3) Å for the C23–C28 ring]. The distance of the Ru atom from the centre of the η6-arene ring is 1.670 Å, whereas the mean Ru—C distance is 2.194 (7) Å, similar to the other arene–ruthenium compounds noted above.
The –OCH2CH3 side chain is on the same side as the chloride ligand, rather than the tosyl group, to minimize unfavourable steric interactions. A similar orientation of the alkoxy side chain was reported for [RuCl(NH2CH2CH2NTs)(η6-C6H5OCH2CH2OH)] (Soleimannejad et al., 2003), whereas in OKAMIW, the alkoxy side chain is directed away from the chloride ligand on the opposite site of the molecule. The Ru—N2 and Ru—N1 bond lengths are 2.134 (5) and 2.111 (5) Å, respectively, and both bond distances are comparable with those in TAFON10, OKAMIW, ZALWIS and [RuCl{C5H4N-2-C(Me)=N(CHMePh)}(η6-1,3,5-C6H3Me3)]+ (Davies et al., 1997).
The five-membered chelate ring of the (R,R)-TsDPEN ligand is highly skewed and has two N-bound H atoms, labelled H1B and H1C. The H1B⋯Cl distance of 2.61 Å is much shorter than the sum of the van der Waals radii (2.95 Å; Bondi, 1964), suggesting the existence of a hydrogen-bond attraction. Similar hydrogen bonding has been proposed in related `Noyori-type catalysts' (Haack et al., 1997). Noyori has reported that complexes of this type eliminate HCl to form hydrogen-transfer catalysts of the type [Ru(η6-arene){TsNCH(Ph)CH(Ph)NH}], and presumably such an interaction between Cl− and NH facilitates this elimination.
One methanol solvent molecule per molecule of the complex is also present in the . Hydrogen bonding between the methanol and the complex is responsible for the formation of a one-dimensional chain of molecules in the [100] direction. Evidence for these interactions can be seen in Table 2, with the last entries, though weak, included for completeness (the methanol O atom is O1S).
of (I)Experimental
The title compound was synthesized in 72% yield by the reaction of [RuCl2(η6-C6H5OC2H5)]2 (Soleimannejad & White, 2005; 0.20 g, 0.34 mmol) and (R,R)-1,2-diphenyl-N-(p-toluenesulfonyl)ethylenediamine {[(R,R)-TsDPEN]H; 0.25 g, 0.68 mmol} in the presence of triethylamine (0.20 ml, 1.36 mmol) in 2-propanol (7 ml) at 353 K for 1 h. The orange solution was concentrated to 2 ml and the resulting solid was filtered off, washed with water and dried under vacuum. Yellow crystals of (I) were grown from methanol. Analysis found: C 54.3, H 5.1, Cl 5.9, N 4.1, S 4.8%; C29H31ClN2O3RuS·MeOH requires: C 54.9, H 5.4, Cl 5.4, N 4.3, S 4.9%. MS, m/z (FAB+): 624 ([M+], 6%), 589 ([M+] − Cl, 100%).
Crystal data
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Refinement
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H atoms were positioned geometrically and refined using a riding model (including torsional freedom for methyl groups), with C—H distances in the range 0.95–0.98 Å and N—H distances of 0.92 Å, and with Uiso(H) = 1.2 (1.5 for methyl groups) times Ueq of the parent atom.
Data collection: SMART (Bruker, 1997); cell SMART; data reduction: SHELXTL (Bruker, 1997); program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: SHELXTL; software used to prepare material for publication: SHELXTL.
Supporting information
10.1107/S0108270104033815/ga1080sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S0108270104033815/ga1080Isup2.hkl
The title compound was synthesized in 72% yield by the reaction of [RuCl2(η6-C6H5OC2H5)]2 (Soleimannejad & White, 2004; 0.20 g, 0.34 mmol) and (R,R)—N-(p-toluenesulfonyl)-1,2-diphenylethylenediamine {[(R,R)-TsDPEN]H; 0.25 g, 0.68 mmol} in the presence of triethylamine (0.20 ml, 1.36 mmol) in 2-propanol (7 ml) at 353 K for 1 h. The orange solution was concentrated to 2 ml and the resulting solid was filtered off, washed with water and dried under vacuum. Orange crystals of (I) were grown from methanol. Analysis, found: C 54.3, H 5.1, Cl 5.9, N 4.1, S 4.8%; C29H31ClN2O3RuS·MeOH requires: C 54.9, H 5.4, Cl 5.4, N 4.3, S 4.9%. MS, m/z (FAB+): 624 ([M+], 6%), 589 ([M+]-Cl, 100%).
H atoms were positioned geometrically and refined with a riding model (including torsional freedom for methyl groups), with C—H distances in the range 0.95–0.98 Å and N—H distances of 0.92 Å, and with Uiso(H) = 1.2 (1.5 for methyl groups) times Ueq of the parent atom.
Data collection: SMART (Bruker, 1997); cell
SMART; data reduction: SHELXTL (Bruker, 1997); program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: SHELXTL; software used to prepare material for publication: SHELXTL.[RuCl(C21H21N2O2S)(C8H10O)]·CH4O | F(000) = 676 |
Mr = 656.18 | Dx = 1.462 Mg m−3 |
Monoclinic, P21 | Mo Kα radiation, λ = 0.71073 Å |
a = 7.8880 (15) Å | Cell parameters from 3067 reflections |
b = 14.591 (3) Å | θ = 5.2–51.8° |
c = 12.955 (2) Å | µ = 0.72 mm−1 |
β = 91.799 (3)° | T = 150 K |
V = 1490.3 (5) Å3 | Block, yellow |
Z = 2 | 0.21 × 0.08 × 0.08 mm |
Bruker SMART1000 CCD area-detector diffractometer | 5928 independent reflections |
Radiation source: fine-focus sealed tube | 4729 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.049 |
Detector resolution: 100 pixels mm-1 | θmax = 27.5°, θmin = 2.1° |
ω scans | h = −10→10 |
Absorption correction: multi-scan (SADABS; Bruker, 1997) | k = −18→14 |
Tmin = 0.863, Tmax = 0.944 | l = −16→14 |
9704 measured reflections |
Refinement on F2 | Secondary atom site location: difference Fourier map |
Least-squares matrix: full | Hydrogen site location: inferred from neighbouring sites |
R[F2 > 2σ(F2)] = 0.039 | H-atom parameters constrained |
wR(F2) = 0.083 | w = 1/[σ2(Fo2) + (0.0271P)2] where P = (Fo2 + 2Fc2)/3 |
S = 0.96 | (Δ/σ)max < 0.001 |
5928 reflections | Δρmax = 1.14 e Å−3 |
352 parameters | Δρmin = −0.32 e Å−3 |
49 restraints | Absolute structure: Flack (1983), with how many Friedel pairs |
Primary atom site location: structure-invariant direct methods | Absolute structure parameter: −0.01 (3) |
[RuCl(C21H21N2O2S)(C8H10O)]·CH4O | V = 1490.3 (5) Å3 |
Mr = 656.18 | Z = 2 |
Monoclinic, P21 | Mo Kα radiation |
a = 7.8880 (15) Å | µ = 0.72 mm−1 |
b = 14.591 (3) Å | T = 150 K |
c = 12.955 (2) Å | 0.21 × 0.08 × 0.08 mm |
β = 91.799 (3)° |
Bruker SMART1000 CCD area-detector diffractometer | 5928 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 1997) | 4729 reflections with I > 2σ(I) |
Tmin = 0.863, Tmax = 0.944 | Rint = 0.049 |
9704 measured reflections |
R[F2 > 2σ(F2)] = 0.039 | H-atom parameters constrained |
wR(F2) = 0.083 | Δρmax = 1.14 e Å−3 |
S = 0.96 | Δρmin = −0.32 e Å−3 |
5928 reflections | Absolute structure: Flack (1983), with how many Friedel pairs |
352 parameters | Absolute structure parameter: −0.01 (3) |
49 restraints |
Experimental. Chloro(1R,2R-N-(4-toluenesulfonyl)-1,2-diphenylethylenediamine) (ethoxybenzene)ruthenium 1 methanol solvate |
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 | ||
Ru1 | 0.05598 (4) | 0.34113 (2) | 0.54299 (2) | 0.02583 (9) | |
S1 | 0.11434 (14) | 0.17368 (7) | 0.38012 (9) | 0.0264 (3) | |
Cl1 | −0.24201 (15) | 0.29831 (8) | 0.51191 (10) | 0.0344 (3) | |
N1 | −0.0197 (5) | 0.4500 (2) | 0.4448 (3) | 0.0307 (9) | |
H1B | −0.1355 | 0.4570 | 0.4469 | 0.037* | |
H1C | 0.0297 | 0.5034 | 0.4685 | 0.037* | |
N2 | 0.1102 (4) | 0.2844 (2) | 0.3961 (3) | 0.0200 (8) | |
O1 | −0.1187 (5) | 0.2802 (2) | 0.7581 (3) | 0.0457 (10) | |
O2 | 0.1603 (4) | 0.1312 (2) | 0.4767 (2) | 0.0325 (8) | |
O3 | −0.0349 (4) | 0.1378 (2) | 0.3264 (3) | 0.0352 (8) | |
C1 | 0.3109 (6) | 0.3705 (3) | 0.6036 (4) | 0.0354 (9) | |
H1A | 0.4014 | 0.3900 | 0.5559 | 0.043* | |
C2 | 0.1948 (7) | 0.4363 (4) | 0.6417 (4) | 0.0337 (9) | |
H2A | 0.2045 | 0.5019 | 0.6204 | 0.040* | |
C3 | 0.0516 (7) | 0.4071 (3) | 0.6955 (4) | 0.0343 (9) | |
H3A | −0.0399 | 0.4524 | 0.7095 | 0.041* | |
C4 | 0.0199 (6) | 0.3134 (3) | 0.7112 (4) | 0.0340 (9) | |
C5 | 0.1320 (7) | 0.2468 (4) | 0.6686 (4) | 0.0343 (9) | |
H5A | 0.0971 | 0.1810 | 0.6649 | 0.041* | |
C6 | 0.2754 (7) | 0.2761 (4) | 0.6173 (4) | 0.0352 (9) | |
H6A | 0.3407 | 0.2302 | 0.5773 | 0.042* | |
C7 | −0.2532 (6) | 0.3425 (6) | 0.7822 (4) | 0.0516 (12) | |
H7A | −0.2942 | 0.3745 | 0.7188 | 0.062* | |
H7B | −0.2114 | 0.3889 | 0.8325 | 0.062* | |
C8 | −0.3936 (8) | 0.2888 (5) | 0.8267 (5) | 0.0676 (19) | |
H8A | −0.4867 | 0.3302 | 0.8434 | 0.101* | |
H8B | −0.3522 | 0.2578 | 0.8897 | 0.101* | |
H8C | −0.4345 | 0.2431 | 0.7763 | 0.101* | |
C9 | 0.0890 (6) | 0.3222 (3) | 0.2035 (3) | 0.0291 (11) | |
C10 | 0.2576 (5) | 0.3390 (4) | 0.1840 (3) | 0.0319 (9) | |
H10A | 0.3345 | 0.3519 | 0.2400 | 0.038* | |
C11 | 0.3163 (6) | 0.3375 (5) | 0.0846 (4) | 0.0461 (12) | |
H11A | 0.4330 | 0.3479 | 0.0729 | 0.055* | |
C12 | 0.2040 (8) | 0.3205 (4) | 0.0014 (4) | 0.0558 (17) | |
H12A | 0.2428 | 0.3209 | −0.0673 | 0.067* | |
C13 | 0.0371 (8) | 0.3035 (3) | 0.0201 (4) | 0.0504 (15) | |
H13A | −0.0399 | 0.2914 | −0.0361 | 0.060* | |
C14 | −0.0211 (7) | 0.3035 (3) | 0.1203 (4) | 0.0357 (12) | |
H14A | −0.1369 | 0.2906 | 0.1319 | 0.043* | |
C15 | 0.2843 (5) | 0.1491 (3) | 0.2980 (3) | 0.0235 (9) | |
C16 | 0.4480 (6) | 0.1760 (3) | 0.3263 (4) | 0.0308 (11) | |
H16A | 0.4686 | 0.2098 | 0.3881 | 0.037* | |
C17 | 0.5813 (6) | 0.1533 (3) | 0.2639 (4) | 0.0352 (12) | |
H17A | 0.6926 | 0.1734 | 0.2825 | 0.042* | |
C18 | 0.5554 (6) | 0.1017 (3) | 0.1748 (4) | 0.0355 (12) | |
C19 | 0.3919 (6) | 0.0748 (3) | 0.1487 (4) | 0.0329 (11) | |
H19A | 0.3719 | 0.0388 | 0.0884 | 0.040* | |
C20 | 0.2567 (6) | 0.0989 (3) | 0.2083 (4) | 0.0303 (11) | |
H20A | 0.1448 | 0.0811 | 0.1877 | 0.036* | |
C21 | 0.7048 (8) | 0.0758 (4) | 0.1085 (5) | 0.0497 (17) | |
H21A | 0.6641 | 0.0385 | 0.0499 | 0.075* | |
H21B | 0.7877 | 0.0406 | 0.1502 | 0.075* | |
H21C | 0.7585 | 0.1315 | 0.0829 | 0.075* | |
C22 | 0.0181 (5) | 0.3330 (4) | 0.3105 (3) | 0.0238 (9) | |
H22B | −0.1034 | 0.3134 | 0.3086 | 0.029* | |
C23 | 0.0280 (6) | 0.4346 (3) | 0.3365 (3) | 0.0273 (10) | |
H23A | 0.1489 | 0.4540 | 0.3305 | 0.033* | |
C24 | −0.0778 (7) | 0.4912 (3) | 0.2603 (4) | 0.0331 (12) | |
C25 | −0.0018 (8) | 0.5444 (3) | 0.1862 (4) | 0.0439 (14) | |
H25B | 0.1183 | 0.5474 | 0.1840 | 0.053* | |
C26 | −0.1011 (10) | 0.5931 (4) | 0.1156 (5) | 0.0582 (18) | |
H26A | −0.0477 | 0.6281 | 0.0641 | 0.070* | |
C27 | −0.2728 (13) | 0.5920 (5) | 0.1181 (5) | 0.066 (2) | |
H27A | −0.3383 | 0.6282 | 0.0707 | 0.080* | |
C28 | −0.3518 (9) | 0.5387 (5) | 0.1892 (5) | 0.0613 (19) | |
H28A | −0.4721 | 0.5364 | 0.1898 | 0.074* | |
C29 | −0.2556 (7) | 0.4878 (4) | 0.2606 (4) | 0.0429 (13) | |
H29B | −0.3105 | 0.4507 | 0.3097 | 0.052* | |
O1S | 0.2496 (6) | 0.5844 (3) | 0.4582 (4) | 0.0673 (13) | |
H1S | 0.2318 | 0.6410 | 0.4622 | 0.101* | |
C1S | 0.4098 (8) | 0.5696 (4) | 0.4227 (5) | 0.0621 (18) | |
H2S | 0.4199 | 0.5985 | 0.3549 | 0.093* | |
H3S | 0.4298 | 0.5036 | 0.4166 | 0.093* | |
H4S | 0.4939 | 0.5962 | 0.4713 | 0.093* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Ru1 | 0.03008 (17) | 0.02161 (16) | 0.02581 (17) | 0.0015 (2) | 0.00117 (13) | 0.0005 (2) |
S1 | 0.0271 (6) | 0.0206 (6) | 0.0318 (6) | 0.0008 (5) | 0.0038 (5) | −0.0011 (5) |
Cl1 | 0.0300 (6) | 0.0331 (6) | 0.0402 (7) | −0.0022 (5) | 0.0041 (5) | −0.0039 (5) |
N1 | 0.043 (2) | 0.023 (2) | 0.026 (2) | 0.0053 (17) | −0.0023 (19) | −0.0066 (16) |
N2 | 0.0248 (19) | 0.0143 (18) | 0.021 (2) | 0.0045 (15) | 0.0030 (16) | 0.0012 (15) |
O1 | 0.053 (2) | 0.045 (2) | 0.040 (2) | 0.0069 (18) | 0.0166 (19) | 0.0079 (17) |
O2 | 0.0399 (19) | 0.0233 (18) | 0.0349 (19) | 0.0041 (15) | 0.0092 (16) | 0.0063 (14) |
O3 | 0.0278 (17) | 0.0279 (18) | 0.050 (2) | −0.0003 (14) | 0.0021 (16) | −0.0083 (16) |
C1 | 0.0385 (19) | 0.036 (2) | 0.0309 (19) | 0.0032 (15) | −0.0079 (16) | −0.0020 (16) |
C2 | 0.041 (2) | 0.0302 (19) | 0.029 (2) | −0.0018 (16) | −0.0067 (17) | −0.0013 (16) |
C3 | 0.0411 (19) | 0.034 (2) | 0.0281 (19) | 0.0061 (17) | −0.0028 (17) | −0.0027 (16) |
C4 | 0.0394 (19) | 0.036 (2) | 0.0266 (18) | 0.0034 (15) | −0.0008 (16) | 0.0031 (15) |
C5 | 0.043 (2) | 0.0318 (19) | 0.027 (2) | 0.0065 (16) | −0.0069 (17) | 0.0016 (16) |
C6 | 0.040 (2) | 0.035 (2) | 0.0298 (19) | 0.0121 (17) | −0.0101 (16) | −0.0032 (17) |
C7 | 0.054 (3) | 0.060 (3) | 0.042 (3) | 0.005 (5) | 0.010 (2) | 0.007 (4) |
C8 | 0.054 (4) | 0.089 (5) | 0.060 (4) | −0.006 (4) | 0.012 (3) | 0.007 (4) |
C9 | 0.043 (3) | 0.015 (3) | 0.029 (2) | 0.0036 (19) | 0.004 (2) | 0.0003 (17) |
C10 | 0.041 (2) | 0.022 (2) | 0.033 (2) | 0.005 (3) | 0.0023 (18) | −0.003 (3) |
C11 | 0.057 (3) | 0.039 (3) | 0.044 (3) | −0.002 (4) | 0.021 (2) | −0.002 (4) |
C12 | 0.086 (4) | 0.051 (5) | 0.032 (3) | 0.001 (3) | 0.018 (3) | 0.004 (3) |
C13 | 0.073 (4) | 0.041 (3) | 0.037 (3) | 0.006 (3) | −0.005 (3) | −0.006 (2) |
C14 | 0.042 (3) | 0.028 (2) | 0.037 (3) | 0.004 (2) | 0.000 (2) | −0.007 (2) |
C15 | 0.025 (2) | 0.020 (2) | 0.026 (2) | 0.0026 (18) | 0.0014 (19) | 0.0010 (18) |
C16 | 0.030 (2) | 0.032 (3) | 0.030 (3) | 0.000 (2) | −0.006 (2) | −0.002 (2) |
C17 | 0.028 (2) | 0.040 (3) | 0.038 (3) | 0.007 (2) | −0.001 (2) | 0.001 (2) |
C18 | 0.037 (3) | 0.036 (3) | 0.034 (3) | 0.013 (2) | 0.007 (2) | 0.006 (2) |
C19 | 0.048 (3) | 0.025 (3) | 0.026 (3) | −0.002 (2) | 0.001 (2) | −0.005 (2) |
C20 | 0.033 (3) | 0.027 (3) | 0.030 (3) | −0.001 (2) | −0.006 (2) | 0.002 (2) |
C21 | 0.046 (4) | 0.051 (4) | 0.053 (4) | 0.011 (3) | 0.020 (3) | −0.002 (3) |
C22 | 0.0229 (18) | 0.022 (2) | 0.027 (2) | −0.001 (2) | 0.0009 (16) | 0.000 (2) |
C23 | 0.036 (3) | 0.020 (2) | 0.026 (3) | −0.001 (2) | 0.003 (2) | −0.0019 (19) |
C24 | 0.053 (3) | 0.018 (2) | 0.027 (3) | 0.012 (2) | −0.005 (2) | 0.0008 (19) |
C25 | 0.068 (4) | 0.028 (3) | 0.036 (3) | −0.002 (3) | 0.013 (3) | 0.002 (2) |
C26 | 0.107 (6) | 0.035 (3) | 0.033 (3) | 0.010 (4) | 0.000 (4) | 0.004 (3) |
C27 | 0.132 (7) | 0.040 (4) | 0.026 (4) | 0.035 (4) | −0.019 (4) | 0.001 (3) |
C28 | 0.066 (4) | 0.063 (4) | 0.053 (4) | 0.023 (4) | −0.023 (4) | −0.016 (3) |
C29 | 0.046 (3) | 0.043 (3) | 0.039 (3) | 0.010 (3) | −0.007 (3) | 0.003 (2) |
O1S | 0.061 (3) | 0.044 (2) | 0.097 (4) | −0.010 (2) | 0.024 (3) | −0.019 (2) |
C1S | 0.059 (4) | 0.056 (4) | 0.073 (5) | −0.022 (3) | 0.017 (4) | −0.016 (3) |
Ru1—N1 | 2.110 (4) | C11—C12 | 1.396 (7) |
Ru1—N2 | 2.131 (3) | C11—H11A | 0.9500 |
Ru1—C2 | 2.162 (5) | C12—C13 | 1.369 (8) |
Ru1—C6 | 2.172 (5) | C12—H12A | 0.9500 |
Ru1—C1 | 2.179 (5) | C13—C14 | 1.390 (7) |
Ru1—C5 | 2.200 (5) | C13—H13A | 0.9500 |
Ru1—C3 | 2.199 (5) | C14—H14A | 0.9500 |
Ru1—C4 | 2.243 (5) | C15—C20 | 1.385 (6) |
Ru1—Cl1 | 2.4532 (13) | C15—C16 | 1.388 (6) |
S1—O2 | 1.433 (3) | C16—C17 | 1.387 (6) |
S1—O3 | 1.446 (3) | C16—H16A | 0.9500 |
S1—N2 | 1.629 (3) | C17—C18 | 1.387 (7) |
S1—C15 | 1.774 (4) | C17—H17A | 0.9500 |
Cl1—H1C | 3.7340 | C18—C19 | 1.380 (7) |
N1—C23 | 1.481 (5) | C18—C21 | 1.528 (7) |
N1—H1B | 0.9200 | C19—C20 | 1.382 (7) |
N1—H1C | 0.9200 | C19—H19A | 0.9500 |
N2—C22 | 1.486 (5) | C20—H20A | 0.9500 |
O1—C4 | 1.357 (6) | C21—H21A | 0.9800 |
O1—C7 | 1.438 (7) | C21—H21B | 0.9800 |
C1—C6 | 1.418 (7) | C21—H21C | 0.9800 |
C1—C2 | 1.425 (7) | C22—C23 | 1.521 (7) |
C1—H1A | 1.0000 | C22—H22B | 1.0000 |
C2—C3 | 1.411 (7) | C23—C24 | 1.517 (6) |
C2—H2A | 1.0000 | C23—H23A | 1.0000 |
C3—C4 | 1.406 (7) | C24—C25 | 1.385 (7) |
C3—H3A | 1.0000 | C24—C29 | 1.404 (7) |
C4—C5 | 1.435 (7) | C25—C26 | 1.382 (8) |
C5—C6 | 1.397 (7) | C25—H25B | 0.9500 |
C5—H5A | 1.0000 | C26—C27 | 1.356 (10) |
C6—H6A | 1.0000 | C26—H26A | 0.9500 |
C7—C8 | 1.487 (8) | C27—C28 | 1.370 (10) |
C7—H7A | 0.9900 | C27—H27A | 0.9500 |
C7—H7B | 0.9900 | C28—C29 | 1.392 (8) |
C8—H8A | 0.9800 | C28—H28A | 0.9500 |
C8—H8B | 0.9800 | C29—H29B | 0.9500 |
C8—H8C | 0.9800 | O1S—C1S | 1.375 (7) |
C9—C10 | 1.384 (6) | O1S—H1S | 0.8400 |
C9—C14 | 1.390 (6) | C1S—H2S | 0.9800 |
C9—C22 | 1.519 (6) | C1S—H3S | 0.9800 |
C10—C11 | 1.383 (6) | C1S—H4S | 0.9800 |
C10—H10A | 0.9500 | ||
N1—Ru1—N2 | 79.35 (13) | O1—C7—H7A | 110.0 |
N1—Ru1—C2 | 90.09 (18) | C8—C7—H7A | 110.0 |
N2—Ru1—C2 | 131.74 (17) | O1—C7—H7B | 110.0 |
N1—Ru1—C6 | 143.39 (19) | C8—C7—H7B | 110.0 |
N2—Ru1—C6 | 92.66 (17) | H7A—C7—H7B | 108.4 |
C2—Ru1—C6 | 68.7 (2) | C7—C8—H8A | 109.5 |
N1—Ru1—C1 | 108.05 (17) | C7—C8—H8B | 109.5 |
N2—Ru1—C1 | 100.93 (17) | H8A—C8—H8B | 109.5 |
C2—Ru1—C1 | 38.34 (18) | C7—C8—H8C | 109.5 |
C6—Ru1—C1 | 38.0 (2) | H8A—C8—H8C | 109.5 |
N1—Ru1—C5 | 169.23 (17) | H8B—C8—H8C | 109.5 |
N2—Ru1—C5 | 111.10 (16) | C10—C9—C14 | 118.3 (4) |
C2—Ru1—C5 | 80.96 (18) | C10—C9—C22 | 122.1 (4) |
C6—Ru1—C5 | 37.26 (19) | C14—C9—C22 | 119.3 (4) |
C1—Ru1—C5 | 68.2 (2) | C9—C10—C11 | 121.3 (4) |
N1—Ru1—C3 | 101.53 (16) | C9—C10—H10A | 119.4 |
N2—Ru1—C3 | 169.02 (18) | C11—C10—H10A | 119.4 |
C2—Ru1—C3 | 37.75 (19) | C10—C11—C12 | 120.0 (5) |
C6—Ru1—C3 | 80.1 (2) | C10—C11—H11A | 120.0 |
C1—Ru1—C3 | 68.3 (2) | C12—C11—H11A | 120.0 |
C5—Ru1—C3 | 67.71 (19) | C13—C12—C11 | 119.1 (5) |
N1—Ru1—C4 | 132.79 (16) | C13—C12—H12A | 120.5 |
N2—Ru1—C4 | 146.36 (15) | C11—C12—H12A | 120.5 |
C2—Ru1—C4 | 67.59 (19) | C12—C13—C14 | 120.9 (5) |
C6—Ru1—C4 | 67.33 (19) | C12—C13—H13A | 119.6 |
C1—Ru1—C4 | 80.17 (19) | C14—C13—H13A | 119.6 |
C5—Ru1—C4 | 37.68 (18) | C13—C14—C9 | 120.5 (5) |
C3—Ru1—C4 | 36.89 (19) | C13—C14—H14A | 119.7 |
N1—Ru1—Cl1 | 80.86 (12) | C9—C14—H14A | 119.7 |
N2—Ru1—Cl1 | 88.42 (10) | C20—C15—C16 | 119.5 (4) |
C2—Ru1—Cl1 | 136.51 (15) | C20—C15—S1 | 120.5 (3) |
C6—Ru1—Cl1 | 135.04 (15) | C16—C15—S1 | 119.9 (3) |
C1—Ru1—Cl1 | 168.02 (14) | C17—C16—C15 | 119.6 (4) |
C5—Ru1—Cl1 | 101.51 (15) | C17—C16—H16A | 120.2 |
C3—Ru1—Cl1 | 102.54 (15) | C15—C16—H16A | 120.2 |
C4—Ru1—Cl1 | 87.89 (13) | C16—C17—C18 | 121.4 (4) |
O2—S1—O3 | 116.3 (2) | C16—C17—H17A | 119.3 |
O2—S1—N2 | 108.86 (19) | C18—C17—H17A | 119.3 |
O3—S1—N2 | 113.59 (18) | C19—C18—C17 | 118.0 (4) |
O2—S1—C15 | 105.13 (19) | C19—C18—C21 | 121.5 (5) |
O3—S1—C15 | 104.9 (2) | C17—C18—C21 | 120.4 (5) |
N2—S1—C15 | 107.19 (19) | C18—C19—C20 | 121.5 (4) |
Ru1—Cl1—H1C | 43.0 | C18—C19—H19A | 119.2 |
C23—N1—Ru1 | 112.4 (3) | C20—C19—H19A | 119.2 |
C23—N1—H1B | 109.1 | C19—C20—C15 | 120.0 (4) |
Ru1—N1—H1B | 109.1 | C19—C20—H20A | 120.0 |
C23—N1—H1C | 109.1 | C15—C20—H20A | 120.0 |
Ru1—N1—H1C | 109.1 | C18—C21—H21A | 109.5 |
H1B—N1—H1C | 107.9 | C18—C21—H21B | 109.5 |
C22—N2—S1 | 113.0 (3) | H21A—C21—H21B | 109.5 |
C22—N2—Ru1 | 111.9 (2) | C18—C21—H21C | 109.5 |
S1—N2—Ru1 | 120.28 (19) | H21A—C21—H21C | 109.5 |
C4—O1—C7 | 118.8 (4) | H21B—C21—H21C | 109.5 |
C6—C1—C2 | 118.6 (5) | N2—C22—C9 | 116.5 (4) |
C6—C1—Ru1 | 70.7 (3) | N2—C22—C23 | 106.3 (3) |
C2—C1—Ru1 | 70.2 (3) | C9—C22—C23 | 106.5 (4) |
C6—C1—H1A | 120.1 | N2—C22—H22B | 109.1 |
C2—C1—H1A | 120.1 | C9—C22—H22B | 109.1 |
Ru1—C1—H1A | 120.1 | C23—C22—H22B | 109.1 |
C3—C2—C1 | 120.1 (5) | N1—C23—C24 | 112.5 (4) |
C3—C2—Ru1 | 72.6 (3) | N1—C23—C22 | 110.1 (3) |
C1—C2—Ru1 | 71.5 (3) | C24—C23—C22 | 111.3 (4) |
C3—C2—H2A | 119.6 | N1—C23—H23A | 107.6 |
C1—C2—H2A | 119.6 | C24—C23—H23A | 107.6 |
Ru1—C2—H2A | 119.6 | C22—C23—H23A | 107.6 |
C2—C3—C4 | 120.9 (5) | C25—C24—C29 | 118.4 (5) |
C2—C3—Ru1 | 69.7 (3) | C25—C24—C23 | 121.0 (5) |
C4—C3—Ru1 | 73.2 (3) | C29—C24—C23 | 120.6 (4) |
C2—C3—H3A | 118.9 | C26—C25—C24 | 119.9 (6) |
C4—C3—H3A | 118.9 | C26—C25—H25B | 120.1 |
Ru1—C3—H3A | 118.9 | C24—C25—H25B | 120.1 |
O1—C4—C3 | 124.2 (4) | C27—C26—C25 | 121.6 (6) |
O1—C4—C5 | 116.4 (4) | C27—C26—H26A | 119.2 |
C3—C4—C5 | 119.2 (5) | C25—C26—H26A | 119.2 |
O1—C4—Ru1 | 128.9 (3) | C26—C27—C28 | 119.8 (6) |
C3—C4—Ru1 | 69.9 (3) | C26—C27—H27A | 120.1 |
C5—C4—Ru1 | 69.5 (3) | C28—C27—H27A | 120.1 |
C6—C5—C4 | 119.6 (5) | C27—C28—C29 | 120.0 (6) |
C6—C5—Ru1 | 70.3 (3) | C27—C28—H28A | 120.0 |
C4—C5—Ru1 | 72.8 (3) | C29—C28—H28A | 120.0 |
C6—C5—H5A | 119.8 | C28—C29—C24 | 120.2 (6) |
C4—C5—H5A | 119.8 | C28—C29—H29B | 119.9 |
Ru1—C5—H5A | 119.8 | C24—C29—H29B | 119.9 |
C5—C6—C1 | 121.5 (5) | C1S—O1S—H1S | 109.5 |
C5—C6—Ru1 | 72.5 (3) | O1S—C1S—H2S | 109.5 |
C1—C6—Ru1 | 71.2 (3) | O1S—C1S—H3S | 109.5 |
C5—C6—H6A | 118.7 | H2S—C1S—H3S | 109.5 |
C1—C6—H6A | 118.7 | O1S—C1S—H4S | 109.5 |
Ru1—C6—H6A | 118.7 | H2S—C1S—H4S | 109.5 |
O1—C7—C8 | 108.4 (6) | H3S—C1S—H4S | 109.5 |
D—H···A | D—H | H···A | D···A | D—H···A |
O1S—H1S···Cl1i | 0.84 | 2.32 | 3.146 (4) | 168 |
N1—H1B···Cl1 | 0.92 | 2.61 | 2.971 (4) | 104 |
N1—H1C···O1S | 0.92 | 2.11 | 2.892 (6) | 143 |
C2—H2A···O1S | 1.00 | 2.46 | 3.252 (7) | 136 |
C6—H6A···O2 | 1.00 | 2.38 | 2.916 (6) | 112 |
C20—H20A···O3 | 0.95 | 2.47 | 2.859 (6) | 105 |
Symmetry code: (i) −x, y+1/2, −z+1. |
Experimental details
Crystal data | |
Chemical formula | [RuCl(C21H21N2O2S)(C8H10O)]·CH4O |
Mr | 656.18 |
Crystal system, space group | Monoclinic, P21 |
Temperature (K) | 150 |
a, b, c (Å) | 7.8880 (15), 14.591 (3), 12.955 (2) |
β (°) | 91.799 (3) |
V (Å3) | 1490.3 (5) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 0.72 |
Crystal size (mm) | 0.21 × 0.08 × 0.08 |
Data collection | |
Diffractometer | Bruker SMART1000 CCD area-detector diffractometer |
Absorption correction | Multi-scan (SADABS; Bruker, 1997) |
Tmin, Tmax | 0.863, 0.944 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 9704, 5928, 4729 |
Rint | 0.049 |
(sin θ/λ)max (Å−1) | 0.649 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.039, 0.083, 0.96 |
No. of reflections | 5928 |
No. of parameters | 352 |
No. of restraints | 49 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 1.14, −0.32 |
Absolute structure | Flack (1983), with how many Friedel pairs |
Absolute structure parameter | −0.01 (3) |
Computer programs: SMART (Bruker, 1997), SMART, SHELXTL (Bruker, 1997), SHELXS97 (Sheldrick, 1997), SHELXL97 (Sheldrick, 1997), SHELXTL.
Ru1—N1 | 2.110 (4) | Ru1—C4 | 2.243 (5) |
Ru1—N2 | 2.131 (3) | Ru1—Cl1 | 2.4532 (13) |
Ru1—C2 | 2.162 (5) | S1—O2 | 1.433 (3) |
Ru1—C6 | 2.172 (5) | S1—O3 | 1.446 (3) |
Ru1—C1 | 2.179 (5) |
D—H···A | D—H | H···A | D···A | D—H···A |
O1S—H1S···Cl1i | 0.84 | 2.32 | 3.146 (4) | 168 |
N1—H1B···Cl1 | 0.92 | 2.61 | 2.971 (4) | 104 |
N1—H1C···O1S | 0.92 | 2.11 | 2.892 (6) | 143 |
C2—H2A···O1S | 1.00 | 2.46 | 3.252 (7) | 136 |
C6—H6A···O2 | 1.00 | 2.38 | 2.916 (6) | 112 |
C20—H20A···O3 | 0.95 | 2.47 | 2.859 (6) | 105 |
Symmetry code: (i) −x, y+1/2, −z+1. |
References
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Arene–ruthenium(II) derivatives are of interest both as reagents in organic chemistry (Pigge & Coniglio, 2001) and as catalysts for a wide range of reactions, including arene hydrogenation (Boxwell et al., 2002), alkene metathesis (Zaja et al., 2003) and Diels–Alder reactions (Davenport et al., 2004). Arene–ruthenium complexes containing chiral diammine ligands are of particular interest, since Noyori and co-workers (Noyori & Hashiguchi, 1997) have demonstrated that they are active enantioselective hydrogen-transfer catalysts. We have recently developed a simple method of synthesizing functionalized arene–ruthenium complexes, e.g. [RuCl2(η6-C6H5OCH2CH2OH)]2 (Soleimannejad & White, 2004), and we wish to exploit this using the functionality to link the arene to polymer supports, in order to prepare easily recyclable `Noyori-type' catalysts (Soleimannejad et al., 2003). During this study, the title compound, (I), was also synthesized, crystallizing with a methanol solvent of crystallization.
The ruthenium in (I) has a pseudo-octahedral geometry, being coordinated to a Cl−, an η6-arene occupying three facial coordination sites, and a five-membered chelate ligand with neutral amino and anionic sulfonamide moieties. The configuration of this chiral ruthenium centre is (S) (Stanley & Baird, 1975). The Ru—Cl bond length of 2.4526 (16) Å is slightly longer than those observed in the analogous complexes found in a search of the Cambridge Structural Database (CSD, Version?; Allen, 2002), [RuCl(TsDPEN)(η6-1,4-MeC6H4CHMe2)] [2.435 (4) Å; CSD refcode TAXFON10; Haack et al., 1997] and [RuCl(TsDPEN)(η6-C6H5OCH2CH2OH)] [2.430 (4) Å; OKAMIW; Soleimannejad et al., 2003], but in agreement with that reported for [RuCl{(1S,2S)-N-(SO2CF3)NCH(C6H5)CH (C6H5)NH2}(η6-C6H6)] [2.463 (3) Å; ZALWIS; Hashiguchi et al., 1995]. The η6-arene ring in (I) is planar [average r.m.s deviation from the plane Δ = 0.0135 (36) Å], as are the three other arene rings [Δ 0.0064 (40) Å for the C9–C14 ring, 0.0078 (33) Å for the C15–C20 ring and 0.0078 (33) Å for the C23–C28 ring]. The distance of the Ru atom from the centre of the η6-arene ring is 1.670 Å, whereas the mean Ru—C distance is 2.194 (7) Å, similar to the other arene–ruthenium compounds noted above.
The –OCH2CH3 side chain is on the same side as the Cl−, rather than the tosyl group, to minimize unfavourable steric interactions. A similar orientation of the alkoxy side-chain was reported for [RuCl(NH2CH2CH2NTs)(η6-C6H5OCH2CH2OH)] (Soleimannejad et al., 2003), whereas in OKAMIW, the alkoxy side-chain is directed away from the Cl− on the opposite site of the molecule. The Ru—N2 and Ru—N1 bond lengths are 2.134 (5) and 2.111 (5) Å, respectively, and both bond distances are also comparable with those in TAFON10, OKAMIW, ZALWIS and [RuCl{C5H4N-2-C(Me)═N(CHMePh)}(η6-1,3,5-C6H3Me3)]+ (Davies et al., 1997).
The five-membered chelate ring of the (R,R)-TsDPEN ligand is highly skewed and has two diastereotopic N-bound H atoms, labelled H1B and H1C. The H1B···Cl distance of 2.612 Å is much shorter than the sum of the van der Waals radii (2.95 Å; Reference?), suggesting the existence of a hydrogen-bond attraction. Similar hydrogen bonding has been proposed in related `Noyori-type catalysts' (Haack et al., 1997). Noyori has reported that complexes of this type eliminate HCl to form hydrogen-transfer catalysts of the type [Ru(η6-arene)(TsNCH(Ph)CH(Ph)NH], and presumably such an interaction between the Cl− and NH facilitates this elimination.
One molecule of solvent methanol for each molecule of the complex is also present in the crystal lattice of (I). Hydrogen bonding between the methanol and the complex is responsible for the formation of a one-dimensional chain of molecules in the [100] direction. Evidence for these interactions can be seen in Table 2, with the last entries, though weak, included for completeness (the methanol O atom is O1S).