Nona­carbonyl-μ-hydrido-(μ³,η²-triiso­propyl­silyl­ethynyl)triruthenium

The structure of the title compound, [Ru₃(CO)₉(μ-H)(μ₃-C₂SiⁱPr₃)], consists of an almost equilateral triangular Ru₃ core, with the acetyl­ide ligand σ-bonded to one Ru atom and π-bonded to the other two Ru atoms. The hydride atom is located between the two Ru atoms that are π-bonded to the acetyl­ide. Three terminal carbonyls around each ruthenium atom complete the structure.

Key indicators

• Single-crystal X-ray study
• T = 160 K
• Mean [sigma](C-C) = 0.004 Å
• R factor = 0.020
• wR factor = 0.054
• Data-to-parameter ratio = 14.2

checkCIF results

No syntax errors found

ADDSYM reports no extra symmetry


 Alert Level B:



REFLT_03
         From the CIF: _diffrn_reflns_theta_max           26.04
         From the CIF: _reflns_number_total               4546
         TEST2: Reflns within _diffrn_reflns_theta_max
         Count of symmetry unique reflns         5068
         Completeness (_total/calc)             89.70%
          Alert B: < 90% complete (theta max?)

Author response: Data were measured on one circle IPDS STOE diffractometer using a phi rotation this geometry always gives a less good coverage of the unique set than a three or four circles goniometer

 Alert Level C:



PLAT_320  Alert C Check Hybridisation of  C(1)   in main residue          ?

General Notes



ABSTM_02  When printed, the submitted absorption T values will be replaced
          by the scaled T values. Since the ratio of scaled T's is
          identical to the ratio of reported T values, the scaling does
          not imply a change to the absorption corrections used in the
          study.
          Ratio of Tmax expected/reported      1.497
          Tmax scaled      0.693 Tmin scaled      0.512


 0 Alert Level A = Potentially serious problem

 1 Alert Level B = Potential problem

 1 Alert Level C = Please check

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S1. Comment

Acetylide compounds are being widely studied because of the versatile coordination modes of the unsaturated fragments which act as metalloligands (Ara et al., 1995). Researchers are also interested in cluster chemistry containing C₂R groups regarding their implications in the syntheses of organic molecules that take place on metal surfaces (Chi et al., 1997). More recently the acetylide derivatives have been used as precursors to synthesize polymetallic compounds bearing unsaturated polycarbon chains (Alcalde et al., 2001). Herein we report the structure of the new compound [Ru₃(CO)₉(µ-H)(µ₃-C₂SiⁱPr₃)], (I). The ν(CO) pattern in the carbonyl region as well as the ¹H NMR resonance for hydride observed in the spectra are in agreement with data reported on analogous compounds (Sappa et al., 1972; Edwards et al., 1995).

The title compound consists of a triangular ruthenium cluster (see Fig. 1). The Ru—Ru distances [Ru1—Ru3 2.8010 (9), Ru1—Ru2 2.7907 (13) and Ru2—Ru3 2.7957 (11) Å] are similar to those reported for other compounds of this type. [Ru₃(CO)₉(µ-H)(µ₃-C₂R)] [R= H [2.792 (1), 2.803 (1), 2.810 (1) Å (Bruce et al., 1999); ^tBu [2.790 (2), 2.795 (2), 2.796 (2) Å (Gervasio & Ferraris, 1973)]. The three ruthenium atoms in all of these compounds form an almost equilateral triangle. In (I) the acetylide ligand is σ-bonded to one Ru atom [Ru2—C1 1.958 (2) Å] and π-bonded to the other two Ru atoms [Ru3—C1 2.215 (2), Ru1—C1 2.206 (2), Ru3—C2 2.302 (3) and Ru1—C2 2.322 (2) Å]. The acetylide group is acting as 5 e^- donor, the C1—C2 distance [1.299 (3) Å] being comparable to that in other acetylide clusters [Ru₃(CO)₉(µ-H)(µ₃-C₂R)][R= H [1.28 (1) Å (Bruce et al., 1999)]; ^t Bu [1.29 (3) Å (Gervasio & Ferraris, 1973)]. The hydride is unsymmetrically located between atoms Ru1 and Ru3 giving Ru—H distances of 1.81 (3) and 1.77 (3) Å (see Table 1.). Three terminal CO ligands around each metal atom complete the structure.

S2. Experimental

A mixture of Ru₃(CO)₁₂ (0.100 g, 0.156 mmol) and HC≡CSiⁱPr₃ (0.056 g, 0.156 mmol) in toluene (15 cm³) was heated with stirring at 358 K for 2.5 h. After removing the solvent in vacuo, the residue was crystallized from hexane at 253 K giving yellow crystals of [Ru₃(CO)₉(µ-H)(µ₃-C₂SiⁱPr₃)] (0.090 g, 78.2% yield). Anal. Calcd. for C₂₀H₂₂O₉SiRu₃ (Found) C, 32.56 (32.79); H, 3.01 (2.81) %. IR (toluene, cm^-1) ν(CO): 2095 (m), 2067 (versus), 2050 (versus), 2018 (versus), 1984 (m). ¹H NMR (CDCl₃): δ= 1.17 [s, 21H, ⁱPr], -20.83 [s, 1H, H]. FAB⁺ (m/z): 737 (M⁺), 711–485 (M⁺-nCO, n= 1–9).

S3. Refinement

All H atoms atoms were located in difference Fourier maps, and refined by using a riding-model approximation with an isotropic displacement parameter fixed at 20% higher than those of the carbons atoms to which they are connected. The hydride H was refined independently with an isotropic displacement parameter. Owing to the geometry of the Stoe IPDS diffractometer which has only one circle (φ rotation), the coverage of the data is usually not complete and only around 90%. To obtain a better coverage, we would need to recollect data with the crystal mounted in a different orientation.

Computing details

Data collection: IPDS Software (Stoe, 1996); cell refinement: IPDS Software; data reduction: X-RED (Stoe, 1996); program(s) used to solve structure: SIR92 (Altomare et al., 1994) in WjnGX (Farrugia, 1999); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997) in WinGX; molecular graphics: ORTEP-3 for Windows (Farrugia, 1997) in WinGX; software used to prepare material for publication: SHELXL97 in WinGX.

Figures

Fig. 1. View of (I) with probability displacement ellipsoids drawn at the 50% level.

(I)

Crystal data

[Ru3(C11H22Si)(CO)9]	Z = 2
Mr = 737.68	F(000) = 720
Triclinic, P1	Dx = 1.91 Mg m^−3
Hall symbol: -P 1	Mo Kα radiation, λ = 0.71069 Å
a = 9.3592 (13) Å	Cell parameters from 5000 reflections
b = 11.8691 (18) Å	θ = 1.5–26.0°
c = 12.6669 (17) Å	µ = 1.83 mm^−1
α = 79.393 (17)°	T = 160 K
β = 87.314 (17)°	Parallelepiped, orange yellow
γ = 68.106 (16)°	0.4 × 0.35 × 0.2 mm
V = 1282.9 (3) Å^3

Data collection

Stoe IPDS diffractometer	4456 reflections with I > 2σ(I)
φ scans	Rint = 0.028
Absorption correction: multi-scan (Blessing, 1995)	θmax = 26.0°, θmin = 3.5°
Tmin = 0.342, Tmax = 0.463	h = −11→11
12223 measured reflections	k = −14→14
4546 independent reflections	l = −15→15

Refinement

Refinement on F^2	0 restraints
Least-squares matrix: full	H atoms treated by a mixture of independent and constrained refinement
R[F^2 > 2σ(F^2)] = 0.020	w = 1/[σ^2(Fo^2) + (0.0241P)^2 + 1.1678P] where P = Fo^2 + 2Fc^2)/3
wR(F^2) = 0.054	(Δ/σ)max = 0.002
S = 1.13	Δρmax = 0.37 e Å^−3
4546 reflections	Δρmin = −0.40 e Å^−3
320 parameters

Special details

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. The structure has been refined by means of least-squares procedures on a F² with the aid of the program SHELXL97 include in the softwares package WinGX version 1.63. The Atomic Scattering Factors were taken from International tables for X-Ray Crystallography. All non-H atoms atoms were anisotropically refined, and in the last cycles of refinement a weighting scheme was used, where weights are calculated from the following formula: w=1/[σ²(F_o²)+(aP)²+bP] where P=(F_o²+2Fc²)/3. 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 > 2σ(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.

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Ų)

	x	y	z	Uiso*/Ueq
Ru1	−0.01078 (2)	0.413152 (16)	0.768929 (14)	0.01971 (6)
Ru2	−0.28060 (2)	0.398048 (17)	0.862315 (15)	0.02237 (7)
Ru3	−0.21596 (2)	0.359488 (17)	0.651244 (14)	0.02084 (6)
Si	0.16340 (8)	0.07630 (6)	0.72245 (5)	0.02073 (13)
O11	0.2856 (2)	0.41617 (18)	0.65700 (18)	0.0401 (5)
O12	0.1373 (2)	0.3607 (2)	0.99054 (15)	0.0382 (5)
O13	−0.1529 (3)	0.68922 (17)	0.76664 (16)	0.0380 (5)
O21	−0.2070 (3)	0.3935 (2)	1.09514 (16)	0.0452 (5)
O22	−0.5022 (3)	0.66766 (19)	0.8205 (2)	0.0540 (6)
O23	−0.5285 (3)	0.2895 (2)	0.9097 (2)	0.0521 (6)
O31	−0.4866 (3)	0.59904 (19)	0.57837 (18)	0.0452 (5)
O32	−0.4142 (2)	0.20480 (19)	0.66898 (18)	0.0411 (5)
O33	−0.1131 (3)	0.31402 (19)	0.42391 (15)	0.0427 (5)
C1	−0.1073 (3)	0.2676 (2)	0.81170 (18)	0.0208 (5)
C2	0.0007 (3)	0.2202 (2)	0.74666 (18)	0.0213 (5)
C11	0.1760 (3)	0.4113 (2)	0.6951 (2)	0.0263 (5)
C12	0.0838 (3)	0.3788 (2)	0.9076 (2)	0.0272 (5)
C13	−0.0983 (3)	0.5855 (2)	0.7707 (2)	0.0276 (5)
C21	−0.2354 (3)	0.3958 (3)	1.0083 (2)	0.0319 (6)
C22	−0.4205 (3)	0.5675 (2)	0.8384 (2)	0.0328 (6)
C23	−0.4381 (3)	0.3318 (3)	0.8918 (2)	0.0316 (6)
C31	−0.3876 (3)	0.5089 (3)	0.6066 (2)	0.0316 (6)
C32	−0.3404 (3)	0.2627 (2)	0.6612 (2)	0.0281 (5)
C33	−0.1444 (3)	0.3286 (2)	0.5091 (2)	0.0289 (5)
C111	0.0943 (3)	−0.0558 (2)	0.7632 (2)	0.0284 (5)
C112	−0.0271 (4)	−0.0500 (3)	0.6838 (3)	0.0409 (7)
H11A	0.0148	−0.0488	0.6114	0.061*
H11B	−0.1186	0.025	0.6846	0.061*
H11C	−0.0554	−0.1226	0.7044	0.061*
C113	0.0315 (5)	−0.0669 (3)	0.8769 (3)	0.0521 (9)
H11D	0.114	−0.0839	0.9294	0.078*
H11E	−0.0069	−0.1345	0.8898	0.078*
H11F	−0.0527	0.0106	0.8843	0.078*
C121	0.2029 (3)	0.0890 (2)	0.5744 (2)	0.0276 (5)
C122	0.3113 (4)	−0.0341 (3)	0.5440 (2)	0.0379 (6)
H12A	0.2709	−0.0988	0.5715	0.057*
H12B	0.4141	−0.0568	0.5754	0.057*
H12C	0.3177	−0.0249	0.4656	0.057*
C123	0.2591 (3)	0.1926 (3)	0.5275 (2)	0.0330 (6)
H12D	0.1826	0.2718	0.5397	0.05*
H12E	0.2735	0.1947	0.4501	0.05*
H12F	0.3572	0.178	0.5624	0.05*
C131	0.3292 (3)	0.0706 (2)	0.8053 (2)	0.0262 (5)
C132	0.4866 (3)	−0.0285 (3)	0.7879 (3)	0.0386 (6)
H13A	0.5124	−0.016	0.7119	0.058*
H13B	0.4816	−0.1106	0.8092	0.058*
H13C	0.5658	−0.0218	0.8316	0.058*
C133	0.2958 (4)	0.0618 (3)	0.9252 (2)	0.0382 (6)
H13D	0.1889	0.1151	0.9349	0.057*
H13E	0.3655	0.0886	0.9605	0.057*
H13F	0.3116	−0.0238	0.9572	0.057*
H1	0.191 (4)	−0.133 (3)	0.763 (2)	0.034 (8)*
H2	0.112 (4)	0.101 (3)	0.545 (2)	0.023 (7)*
H3	0.333 (3)	0.146 (3)	0.781 (2)	0.026 (7)*
H	−0.115 (4)	0.461 (3)	0.642 (2)	0.039 (8)*

Atomic displacement parameters (Ų)

	U^11	U^22	U^33	U^12	U^13	U^23
Ru1	0.01952 (11)	0.01985 (10)	0.02139 (10)	−0.00883 (8)	0.00124 (8)	−0.00463 (7)
Ru2	0.02044 (11)	0.02240 (10)	0.02557 (11)	−0.00843 (9)	0.00541 (8)	−0.00762 (8)
Ru3	0.01886 (11)	0.02105 (10)	0.02192 (10)	−0.00610 (8)	−0.00201 (8)	−0.00433 (7)
Si	0.0194 (3)	0.0198 (3)	0.0222 (3)	−0.0061 (3)	0.0008 (3)	−0.0047 (2)
O11	0.0273 (11)	0.0357 (10)	0.0544 (12)	−0.0124 (9)	0.0105 (10)	−0.0023 (9)
O12	0.0383 (12)	0.0487 (12)	0.0280 (10)	−0.0153 (10)	−0.0091 (9)	−0.0074 (8)
O13	0.0490 (13)	0.0228 (9)	0.0407 (11)	−0.0121 (9)	0.0034 (10)	−0.0057 (8)
O21	0.0530 (14)	0.0619 (14)	0.0308 (11)	−0.0298 (12)	0.0070 (10)	−0.0162 (10)
O22	0.0444 (14)	0.0289 (11)	0.0783 (17)	−0.0036 (10)	0.0116 (13)	−0.0079 (11)
O23	0.0430 (13)	0.0613 (14)	0.0668 (15)	−0.0352 (13)	0.0151 (12)	−0.0171 (12)
O31	0.0365 (13)	0.0331 (11)	0.0518 (12)	0.0043 (10)	−0.0142 (11)	−0.0065 (9)
O32	0.0307 (11)	0.0401 (11)	0.0608 (13)	−0.0194 (10)	0.0012 (10)	−0.0160 (10)
O33	0.0519 (14)	0.0418 (11)	0.0237 (10)	−0.0049 (10)	0.0005 (9)	−0.0063 (8)
C1	0.0215 (12)	0.0194 (10)	0.0228 (11)	−0.0100 (10)	−0.0017 (10)	−0.0015 (9)
C2	0.0225 (12)	0.0200 (11)	0.0222 (11)	−0.0094 (10)	−0.0007 (10)	−0.0025 (9)
C11	0.0259 (14)	0.0203 (11)	0.0304 (12)	−0.0067 (10)	−0.0008 (11)	−0.0025 (9)
C12	0.0249 (13)	0.0254 (12)	0.0324 (13)	−0.0097 (11)	0.0016 (11)	−0.0069 (10)
C13	0.0322 (14)	0.0289 (13)	0.0255 (12)	−0.0154 (12)	0.0047 (11)	−0.0064 (10)
C21	0.0312 (15)	0.0354 (14)	0.0340 (14)	−0.0162 (12)	0.0111 (12)	−0.0120 (11)
C22	0.0285 (15)	0.0282 (13)	0.0403 (14)	−0.0086 (12)	0.0088 (12)	−0.0090 (11)
C23	0.0272 (14)	0.0347 (14)	0.0343 (13)	−0.0121 (12)	0.0054 (12)	−0.0094 (11)
C31	0.0313 (15)	0.0318 (14)	0.0328 (13)	−0.0107 (13)	−0.0032 (12)	−0.0098 (11)
C32	0.0213 (13)	0.0277 (12)	0.0316 (13)	−0.0036 (11)	−0.0046 (11)	−0.0066 (10)
C33	0.0284 (14)	0.0256 (12)	0.0297 (13)	−0.0068 (11)	−0.0035 (11)	−0.0035 (10)
C111	0.0290 (14)	0.0209 (11)	0.0338 (13)	−0.0087 (11)	0.0013 (11)	−0.0028 (10)
C112	0.0391 (17)	0.0367 (15)	0.0532 (17)	−0.0202 (14)	−0.0076 (14)	−0.0079 (13)
C113	0.080 (3)	0.0470 (18)	0.0448 (17)	−0.0416 (19)	0.0207 (17)	−0.0104 (14)
C121	0.0243 (14)	0.0346 (13)	0.0262 (12)	−0.0107 (12)	0.0038 (11)	−0.0123 (10)
C122	0.0333 (16)	0.0401 (15)	0.0379 (15)	−0.0064 (13)	0.0069 (13)	−0.0184 (12)
C123	0.0327 (15)	0.0424 (15)	0.0231 (12)	−0.0146 (13)	0.0036 (11)	−0.0031 (11)
C131	0.0255 (14)	0.0233 (12)	0.0282 (12)	−0.0079 (11)	−0.0029 (11)	−0.0019 (10)
C132	0.0257 (15)	0.0396 (15)	0.0474 (16)	−0.0071 (13)	−0.0025 (13)	−0.0102 (13)
C133	0.0384 (17)	0.0458 (16)	0.0283 (13)	−0.0124 (14)	−0.0061 (12)	−0.0067 (12)

Geometric parameters (Å, º)

Ru1—C13	1.903 (3)	O32—C32	1.132 (3)
Ru1—C12	1.910 (3)	O33—C33	1.132 (3)
Ru1—C11	1.938 (3)	C1—C2	1.299 (3)
Ru1—C1	2.206 (2)	C111—C112	1.526 (4)
Ru1—C2	2.322 (2)	C111—C113	1.531 (4)
Ru1—Ru2	2.7907 (5)	C111—H1	1.01 (3)
Ru1—Ru3	2.8010 (5)	C112—H11A	0.98
Ru1—H	1.81 (3)	C112—H11B	0.98
Ru2—C23	1.907 (3)	C112—H11C	0.98
Ru2—C21	1.909 (3)	C113—H11D	0.98
Ru2—C22	1.924 (3)	C113—H11E	0.98
Ru2—C1	1.958 (2)	C113—H11F	0.98
Ru2—Ru3	2.7957 (5)	C121—C123	1.526 (4)
Ru3—C32	1.904 (3)	C121—C122	1.541 (4)
Ru3—C31	1.907 (3)	C121—H2	0.89 (3)
Ru3—C33	1.942 (3)	C122—H12A	0.98
Ru3—C1	2.215 (2)	C122—H12B	0.98
Ru3—C2	2.302 (3)	C122—H12C	0.98
Ru3—H	1.77 (3)	C123—H12D	0.98
Si—C2	1.881 (3)	C123—H12E	0.98
Si—C121	1.884 (3)	C123—H12F	0.98
Si—C131	1.887 (3)	C131—C133	1.529 (4)
Si—C111	1.890 (3)	C131—C132	1.541 (4)
O11—C11	1.129 (3)	C131—H3	0.91 (3)
O12—C12	1.135 (3)	C132—H13A	0.98
O13—C13	1.135 (3)	C132—H13B	0.98
O21—C21	1.137 (4)	C132—H13C	0.98
O22—C22	1.135 (4)	C133—H13D	0.98
O23—C23	1.130 (3)	C133—H13E	0.98
O31—C31	1.132 (3)	C133—H13F	0.98
C13—Ru1—C12	91.98 (11)	C131—Si—C111	115.77 (12)
C13—Ru1—C11	97.34 (10)	C2—C1—Ru2	156.06 (19)
C12—Ru1—C11	92.96 (11)	C2—C1—Ru1	78.27 (14)
C13—Ru1—C1	131.25 (10)	Ru2—C1—Ru1	83.93 (9)
C12—Ru1—C1	93.10 (9)	C2—C1—Ru3	77.04 (15)
C11—Ru1—C1	130.70 (9)	Ru2—C1—Ru3	83.90 (9)
C13—Ru1—C2	158.26 (10)	Ru1—C1—Ru3	78.63 (8)
C12—Ru1—C2	102.52 (9)	C1—C2—Si	145.28 (19)
C11—Ru1—C2	97.98 (9)	C1—C2—Ru3	69.62 (15)
C1—Ru1—C2	33.21 (9)	Si—C2—Ru3	135.36 (12)
C13—Ru1—Ru2	87.27 (8)	C1—C2—Ru1	68.52 (13)
C12—Ru1—Ru2	90.70 (8)	Si—C2—Ru1	133.19 (12)
C11—Ru1—Ru2	174.00 (7)	Ru3—C2—Ru1	74.57 (7)
C1—Ru1—Ru2	44.24 (6)	O11—C11—Ru1	174.7 (2)
C2—Ru1—Ru2	76.57 (6)	O12—C12—Ru1	178.4 (2)
C13—Ru1—Ru3	106.84 (8)	O13—C13—Ru1	176.6 (2)
C12—Ru1—Ru3	143.33 (7)	O21—C21—Ru2	179.3 (3)
C11—Ru1—Ru3	114.73 (8)	O22—C22—Ru2	177.5 (3)
C1—Ru1—Ru3	50.82 (6)	O23—C23—Ru2	178.2 (3)
C2—Ru1—Ru3	52.40 (6)	O31—C31—Ru3	177.9 (3)
Ru2—Ru1—Ru3	60.00 (1)	O32—C32—Ru3	178.9 (2)
C13—Ru1—H	82.3 (10)	O33—C33—Ru3	175.2 (2)
C12—Ru1—H	173.8 (10)	C112—C111—C113	108.9 (3)
C11—Ru1—H	90.2 (10)	C112—C111—Si	111.45 (19)
C1—Ru1—H	88.8 (10)	C113—C111—Si	114.93 (18)
C2—Ru1—H	82.3 (10)	C112—C111—H1	110.9 (17)
Ru2—Ru1—H	86.6 (10)	C113—C111—H1	106.2 (17)
Ru3—Ru1—H	38.0 (10)	Si—C111—H1	104.3 (17)
C23—Ru2—C21	96.49 (11)	C111—C112—H11A	109.5
C23—Ru2—C22	94.79 (12)	C111—C112—H11B	109.5
C21—Ru2—C22	94.22 (12)	H11A—C112—H11B	109.5
C23—Ru2—C1	105.17 (11)	C111—C112—H11C	109.5
C21—Ru2—C1	107.35 (11)	H11A—C112—H11C	109.5
C22—Ru2—C1	148.34 (10)	H11B—C112—H11C	109.5
C23—Ru2—Ru1	155.30 (8)	C111—C113—H11D	109.5
C21—Ru2—Ru1	99.28 (8)	C111—C113—H11E	109.5
C22—Ru2—Ru1	102.83 (8)	H11D—C113—H11E	109.5
C1—Ru2—Ru1	51.83 (7)	C111—C113—H11F	109.5
C23—Ru2—Ru3	99.77 (8)	H11D—C113—H11F	109.5
C21—Ru2—Ru3	156.55 (9)	H11E—C113—H11F	109.5
C22—Ru2—Ru3	101.10 (8)	C123—C121—C122	110.4 (2)
C1—Ru2—Ru3	51.97 (7)	C123—C121—Si	114.58 (17)
Ru1—Ru2—Ru3	60.184 (11)	C122—C121—Si	112.9 (2)
C32—Ru3—C31	92.18 (12)	C123—C121—H2	111.4 (18)
C32—Ru3—C33	93.73 (11)	C122—C121—H2	103.5 (18)
C31—Ru3—C33	97.38 (11)	Si—C121—H2	103.3 (17)
C32—Ru3—C1	92.66 (10)	C121—C122—H12A	109.5
C31—Ru3—C1	131.43 (10)	C121—C122—H12B	109.5
C33—Ru3—C1	130.41 (10)	H12A—C122—H12B	109.5
C32—Ru3—C2	100.62 (10)	C121—C122—H12C	109.5
C31—Ru3—C2	159.80 (9)	H12A—C122—H12C	109.5
C33—Ru3—C2	97.31 (10)	H12B—C122—H12C	109.5
C1—Ru3—C2	33.35 (8)	C121—C123—H12D	109.5
C32—Ru3—Ru2	91.37 (8)	C121—C123—H12E	109.5
C31—Ru3—Ru2	87.46 (8)	H12D—C123—H12E	109.5
C33—Ru3—Ru2	172.82 (8)	C121—C123—H12F	109.5
C1—Ru3—Ru2	44.13 (6)	H12D—C123—H12F	109.5
C2—Ru3—Ru2	76.76 (6)	H12E—C123—H12F	109.5
C32—Ru3—Ru1	142.85 (8)	C133—C131—C132	110.1 (2)
C31—Ru3—Ru1	108.03 (8)	C133—C131—Si	112.84 (19)
C33—Ru3—Ru1	113.41 (8)	C132—C131—Si	115.44 (18)
C1—Ru3—Ru1	50.56 (6)	C133—C131—H3	107.0 (18)
C2—Ru3—Ru1	53.03 (6)	C132—C131—H3	108.8 (19)
Ru2—Ru3—Ru1	59.82 (2)	Si—C131—H3	102.0 (19)
C32—Ru3—H	175.0 (11)	C131—C132—H13A	109.5
C31—Ru3—H	83.0 (11)	C131—C132—H13B	109.5
C33—Ru3—H	88.2 (10)	H13A—C132—H13B	109.5
C1—Ru3—H	89.6 (10)	C131—C132—H13C	109.5
C2—Ru3—H	83.7 (11)	H13A—C132—H13C	109.5
Ru1—H—Ru3	102.2 (16)	H13B—C132—H13C	109.5
Ru2—Ru3—H	87.2 (10)	C131—C133—H13D	109.5
Ru1—Ru3—H	39.1 (10)	C131—C133—H13E	109.5
C2—Si—C121	109.32 (11)	H13D—C133—H13E	109.5
C2—Si—C131	103.97 (11)	C131—C133—H13F	109.5
C121—Si—C131	113.07 (12)	H13D—C133—H13F	109.5
C2—Si—C111	106.81 (11)	H13E—C133—H13F	109.5
C121—Si—C111	107.56 (11)