organic compounds\(\def\hfill{\hskip 5em}\def\hfil{\hskip 3em}\def\eqno#1{\hfil {#1}}\)

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ISSN: 2414-3146

1,5-Di­chloro-1,1,2,2,3,3,4,4,5,5-deca­phenyl­penta­silane

CROSSMARK_Color_square_no_text.svg

aInstitut für Anorganische Chemie, Universität Frankfurt, Max-von-Laue-Strasse 7, 60438 Frankfurt/Main, Germany
*Correspondence e-mail: bolte@chemie.uni-frankfurt.de

Edited by G. Smith, Queensland University of Technology, Australia (Received 4 November 2016; accepted 11 November 2016; online 22 November 2016)

The title compound, C60H50Cl2Si5, was obtained by a ring-opening reaction of deca­phenyl­cyclo­penta­silane. The chain of silicon atoms adopts an all trans conformation [Si—Si—Si—Si torsion angles = −156.31 (5) and −161.02 (5)°]. One of the Cl atoms is in an anti­periplanar conformation with respect to the Si chain [Cl—Si—Si—Si = −156.40 (5)°] while the other Cl substituent adopts a synclinal conformation [Si—Si—Si—Cl = 78.82 (6)°].

3D view (loading...)
[Scheme 3D1]
Chemical scheme
[Scheme 1]

Structure description

The deposition of silicon from volatile precursors is greatly improved using silanes that already incorporate multiple Si—Si bonds (Chung et al., 2007[Chung, K. H., Sturm, J. C., Sanchez, E., Singh, K. K. & Kuppurao, S. (2007). Semicond. Sci. Technol. 22, S158-S160.]). The selective synthesis of such oligosilanes typically involves a multi-step synthetic procedure. The oligosilane backbones are formed by basic Wurtz-type coupling of especially di­chloro­diphenyl­silane to give defined perphenyl­ated silicon-based cycles (Jarvie et al., 1961[Jarvie, A. W. P., Winkler, H. J. S., Peterson, D. J. & Gilman, H. (1961). J. Am. Chem. Soc. 83, 1921-1924.]). Hydro­chlorination of these species with catalytic amounts of AlCl3 yields cyclic chloro­silanes (Hengge & Kovar, 1977[Hengge, E. & Kovar, D. (1977). J. Organomet. Chem. 125, C29-C32.]). These perchlorinated oligosilanes are then excellent precursors for the synthesis of hydrogenated silanes (Hengge & Bauer, 1975[Hengge, E. & Bauer, G. (1975). Monatsh. Chem. 106, 503-512.]). Instead, chlorination reactions with PCl5 of perphenyl­ated cyclics lead to ring-opening, hence yielding a phenyl­ated silicon chain with terminated Si—Cl functionality. Consequently, cyclo-Si5Ph10 was obtained by the reaction of di­chloro­diphenyl­silane with metallic lithium (Jarvie et al., 1961[Jarvie, A. W. P., Winkler, H. J. S., Peterson, D. J. & Gilman, H. (1961). J. Am. Chem. Soc. 83, 1921-1924.]). Next, treating this cyclic with PCl5 in 1,1,2,2-tetra­chloro­ethane yielded the title compound (Fig. 1[link]), 1,5-di­chloro­deca­phenyl-n-penta­silane, C60H50Cl2Si5, (Hengge & Stüger, 1980[Hengge, E. & Stüger, H. (1980). Monatsh. Chem. 111, 1043-1051.]; Gilman & Chapman, 1967[Gilman, H. & Chapman, D. R. (1967). J. Organomet. Chem. 8, 451-458.]), and the crystal structure is reported herein.

[Figure 1]
Figure 1
A perspective view of the title compound, with displacement ellipsoids drawn at the 50% probability level. H atoms have been omitted for clarity. Only the pivot atoms of the phenyl rings are labelled.

The chain of silicon atoms adopts an all trans conformation [torsion angles Si1—Si2—Si3—Si4, −156.31 (5)° and Si2—Si3—Si4—Si5, −161.02 (5)°]. One of the Cl atoms is in an anti­periplanar conformation with respect to the Si chain [Cl1—Si1—Si2—Si3, −156.40 (5)°] while the other Cl substituent adopts a synclinal conformation [Si3—Si4—Si5—Cl2, 78.82 (6)°].

The crystal structure of a pseudo-polymorph of the title compound, namely 1,5-di­chloro­deca­phenyl­penta­silane benzene solvate, has already been reported (Ovchinnikov et al., 1989[Ovchinnikov, Yu. E., Dement'ev, V. V., Shklover, V. E., Frunze, T. M., Struchkov, Yu. T., Antipova, B. A. & Igonin, V. A. (1989). Metalloorg. Khim. (Russ.) (Organomet. Chem. (USSR), 2, 862-865.]). It crystallizes with two 1,5-di­chloro­deca­phenyl­penta­silane mol­ecules in the asymmetric unit. One of them displays a similar pattern of torsion angles: Si—Si—Si—Si, 157.5 and 156.9°; Cl—Si—Si—Si, 157.1 and −83.1°. The other one has one Si—Si—Si—Si torsion angle in an anti­clinal conformation: Si—Si—Si—Si: −172.0 and 109.4°; Cl—Si—Si—Si: 173.6 and −57.0°.

Synthesis and crystallization

1,5-Di­chloro­deca­phenyl-n-penta­silane was synthesized according to published procedures (Hengge & Stüger, 1980[Hengge, E. & Stüger, H. (1980). Monatsh. Chem. 111, 1043-1051.]; Gilman & Chapman, 1967[Gilman, H. & Chapman, D. R. (1967). J. Organomet. Chem. 8, 451-458.]). cyclo-Si5Ph10 (20.30 g, 22.30 mmol) and PCl5 (5.00 g, 24.00 mmol) were suspended in 1,1,2,2-tetra­chloro­ethane (100 ml) and then heated to 120 °C for 15 minutes. The solvent was removed under vacuum and the oily residue was dissolved in benzene (50 ml). Addition of n-pentane (130 ml) led to precipitation of colorless solids, which were dried under vacuum (18.13 g, 18.46 mmol, 88%). 1H NMR (C6D6, 500.2 MHz): δ = 7.46 (d, 3JH,H = 7.1 Hz, 8 H, 2,4-o-PhH), 7.41 (d, 3JH,H = 7.1 Hz, 4 H, 3-o-PhH), 7.29 (d, 3JH,H = 7.3 Hz, 8 H, 1,5-o-PhH), 7.12–6.86 (m, 30 H, m-PhH, p-PhH) p.p.m. 29Si NMR (C6D6, 99.4 MHz): δ = +2.5 (1,5-SiPh2Cl), −33.1 (3-SiPh2), −35.6 (2,4-SiPh2) p.p.m.

Crystals suitable for single-crystal X-ray crystallography were obtained by vapor diffusion of n-pentane into a concentrated solution of 1,5-di­chloro­deca­phenyl-n-penta­silane in toluene.

Refinement

Crystal data, data collection and structure refinement details are summarized in Table 1[link].

Table 1
Experimental details

Crystal data
Chemical formula C60H50Cl2Si5
Mr 982.35
Crystal system, space group Monoclinic, P21/n
Temperature (K) 173
a, b, c (Å) 11.6675 (6), 33.682 (2), 13.3653 (7)
β (°) 94.184 (4)
V3) 5238.4 (5)
Z 4
Radiation type Mo Kα
μ (mm−1) 0.28
Crystal size (mm) 0.29 × 0.28 × 0.28
 
Data collection
Diffractometer Stoe IPDS II two-circle
Absorption correction Multi-scan (X-AREA; Stoe & Cie, 2001[Stoe & Cie (2001). X-AREA. Stoe & Cie, Darmstadt, Germany.])
Tmin, Tmax 0.673, 1.000
No. of measured, independent and observed [I > 2σ(I)] reflections 36281, 9222, 8032
Rint 0.067
(sin θ/λ)max−1) 0.595
 
Refinement
R[F2 > 2σ(F2)], wR(F2), S 0.070, 0.189, 1.10
No. of reflections 9222
No. of parameters 604
H-atom treatment H-atom parameters constrained
Δρmax, Δρmin (e Å−3) 0.65, −0.49
Computer programs: X-AREA (Stoe & Cie, 2001[Stoe & Cie (2001). X-AREA. Stoe & Cie, Darmstadt, Germany.]), SHELXS97 (Sheldrick, 2008[Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.]), XP in SHELXTL-Plus (Sheldrick, 2008[Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.]), SHELXL2014 (Sheldrick, 2015[Sheldrick, G. M. (2015). Acta Cryst. C71, 3-8.]) and publCIF (Westrip, 2010[Westrip, S. P. (2010). J. Appl. Cryst. 43, 920-925.]).

Structural data


Computing details top

Data collection: X-AREA (Stoe & Cie, 2001); cell refinement: X-AREA (Stoe & Cie, 2001); data reduction: X-AREA (Stoe & Cie, 2001); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL2014 (Sheldrick, 2015); molecular graphics: XP in SHELXTL-Plus (Sheldrick, 2008); software used to prepare material for publication: SHELXL2014 (Sheldrick, 2015) and publCIF (Westrip, 2010).

1,5-Dichloro-1,1,2,2,3,3,4,4,5,5-decaphenylpentasilane top
Crystal data top
C60H50Cl2Si5F(000) = 2056
Mr = 982.35Dx = 1.246 Mg m3
Monoclinic, P21/nMo Kα radiation, λ = 0.71073 Å
a = 11.6675 (6) ÅCell parameters from 36281 reflections
b = 33.682 (2) Åθ = 1.2–26.1°
c = 13.3653 (7) ŵ = 0.28 mm1
β = 94.184 (4)°T = 173 K
V = 5238.4 (5) Å3Block, colourless
Z = 40.29 × 0.28 × 0.28 mm
Data collection top
Stoe IPDS II two-circle
diffractometer
8032 reflections with I > 2σ(I)
Radiation source: Genix 3D IµS microfocus X-ray sourceRint = 0.067
ω scansθmax = 25.0°, θmin = 1.2°
Absorption correction: multi-scan
(X-AREA; Stoe & Cie, 2001)
h = 1313
Tmin = 0.673, Tmax = 1.000k = 4040
36281 measured reflectionsl = 1515
9222 independent reflections
Refinement top
Refinement on F20 restraints
Least-squares matrix: fullHydrogen site location: inferred from neighbouring sites
R[F2 > 2σ(F2)] = 0.070H-atom parameters constrained
wR(F2) = 0.189 w = 1/[σ2(Fo2) + (0.0998P)2 + 5.7602P]
where P = (Fo2 + 2Fc2)/3
S = 1.10(Δ/σ)max = 0.001
9222 reflectionsΔρmax = 0.65 e Å3
604 parametersΔρmin = 0.49 e Å3
Special details top

Geometry. All esds (except the esd in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell esds are taken into account individually in the estimation of esds in distances, angles and torsion angles; correlations between esds in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell esds is used for estimating esds involving l.s. planes.

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2) top
xyzUiso*/Ueq
Cl10.73526 (9)0.74544 (3)0.55535 (7)0.0548 (3)
Cl20.99521 (7)0.51619 (3)0.17428 (7)0.0496 (2)
Si10.68559 (9)0.71809 (3)0.41821 (7)0.0414 (2)
Si20.73273 (8)0.64983 (3)0.44527 (6)0.0368 (2)
Si30.75825 (8)0.61860 (2)0.28776 (6)0.0351 (2)
Si40.73280 (8)0.54828 (2)0.27542 (6)0.0343 (2)
Si50.81971 (8)0.52103 (3)0.13595 (7)0.0378 (2)
C10.7733 (3)0.74134 (10)0.3218 (3)0.0463 (8)
C20.7319 (4)0.74204 (11)0.2205 (3)0.0507 (9)
H20.65690.73240.20180.061*
C30.7992 (4)0.75671 (12)0.1474 (3)0.0580 (10)
H30.77020.75690.07910.070*
C40.9072 (4)0.77096 (13)0.1735 (4)0.0672 (12)
H40.95270.78110.12320.081*
C50.9504 (4)0.77076 (13)0.2722 (4)0.0641 (11)
H51.02520.78080.28990.077*
C60.8835 (4)0.75574 (11)0.3462 (3)0.0540 (9)
H60.91380.75540.41410.065*
C110.5300 (3)0.73104 (11)0.3886 (3)0.0472 (8)
C120.5021 (4)0.76678 (13)0.3378 (3)0.0619 (11)
H120.56190.78460.32310.074*
C130.3893 (5)0.77648 (16)0.3088 (4)0.0785 (14)
H130.37210.80040.27330.094*
C140.3021 (5)0.75129 (18)0.3314 (4)0.0780 (15)
H140.22470.75790.31150.094*
C150.3265 (4)0.71652 (16)0.3829 (3)0.0677 (12)
H150.26590.69930.39870.081*
C160.4405 (4)0.70664 (12)0.4119 (3)0.0531 (9)
H160.45670.68280.44810.064*
C210.6157 (3)0.62804 (9)0.5184 (2)0.0398 (7)
C220.5383 (3)0.59954 (10)0.4785 (3)0.0468 (8)
H220.54790.58930.41340.056*
C230.4486 (4)0.58588 (12)0.5304 (3)0.0558 (9)
H230.39680.56670.50100.067*
C240.4341 (4)0.60016 (12)0.6255 (3)0.0584 (10)
H240.37250.59070.66170.070*
C250.5095 (4)0.62818 (11)0.6680 (3)0.0531 (9)
H250.49980.63790.73350.064*
C260.5989 (3)0.64210 (10)0.6149 (3)0.0441 (8)
H260.64970.66150.64450.053*
C310.8735 (3)0.64869 (10)0.5259 (3)0.0433 (8)
C320.8859 (3)0.62656 (11)0.6141 (3)0.0472 (8)
H320.82230.61180.63480.057*
C330.9902 (4)0.62563 (13)0.6727 (3)0.0589 (10)
H330.99700.61040.73260.071*
C341.0827 (4)0.64672 (15)0.6437 (3)0.0655 (12)
H341.15350.64610.68350.079*
C351.0726 (4)0.66877 (15)0.5567 (4)0.0667 (12)
H351.13660.68350.53680.080*
C360.9693 (4)0.66952 (12)0.4979 (3)0.0553 (9)
H360.96400.68450.43750.066*
C410.9095 (3)0.63072 (10)0.2587 (3)0.0412 (7)
C420.9391 (4)0.66236 (11)0.1983 (3)0.0537 (9)
H420.88050.67960.17070.064*
C431.0520 (4)0.66926 (14)0.1777 (4)0.0727 (13)
H431.06990.69060.13500.087*
C441.1387 (4)0.64503 (14)0.2194 (4)0.0754 (14)
H441.21610.64970.20510.090*
C451.1128 (4)0.61435 (14)0.2812 (4)0.0695 (12)
H451.17230.59790.31040.083*
C460.9994 (3)0.60743 (11)0.3009 (3)0.0504 (9)
H460.98240.58620.34430.060*
C510.6499 (3)0.64221 (9)0.1950 (2)0.0386 (7)
C520.6694 (4)0.64856 (11)0.0939 (3)0.0500 (9)
H520.73970.63990.06950.060*
C530.5882 (4)0.66720 (13)0.0286 (3)0.0602 (11)
H530.60300.67100.03980.072*
C540.4864 (4)0.68020 (12)0.0631 (3)0.0575 (10)
H540.43190.69370.01900.069*
C550.4634 (3)0.67378 (11)0.1611 (3)0.0513 (9)
H550.39280.68250.18480.062*
C560.5442 (3)0.65447 (10)0.2256 (3)0.0430 (7)
H560.52650.64950.29270.052*
C610.5740 (3)0.53743 (9)0.2601 (2)0.0380 (7)
C620.5222 (3)0.51313 (11)0.3288 (3)0.0458 (8)
H620.56880.50130.38200.055*
C630.4052 (3)0.50578 (13)0.3215 (3)0.0560 (9)
H630.37220.48920.36930.067*
C640.3366 (3)0.52277 (13)0.2441 (3)0.0588 (10)
H640.25620.51780.23870.071*
C650.3842 (3)0.54672 (12)0.1751 (3)0.0542 (9)
H650.33660.55840.12240.065*
C660.5013 (3)0.55387 (10)0.1822 (3)0.0442 (8)
H660.53320.57020.13340.053*
C710.7951 (3)0.52064 (9)0.3891 (2)0.0371 (7)
C720.8134 (3)0.47959 (10)0.3872 (3)0.0447 (8)
H720.79830.46540.32620.054*
C730.8535 (4)0.45923 (11)0.4735 (3)0.0508 (9)
H730.86470.43130.47120.061*
C740.8770 (3)0.47950 (11)0.5621 (3)0.0478 (8)
H740.90460.46550.62080.057*
C750.8607 (3)0.51990 (11)0.5659 (3)0.0477 (8)
H750.87730.53390.62690.057*
C760.8201 (3)0.54016 (10)0.4801 (3)0.0430 (7)
H760.80890.56810.48350.052*
C810.8055 (3)0.55343 (10)0.0225 (3)0.0438 (8)
C820.7140 (4)0.54849 (12)0.0500 (3)0.0527 (9)
H820.66050.52760.04340.063*
C830.7010 (4)0.57433 (14)0.1325 (3)0.0633 (11)
H830.63990.57030.18250.076*
C840.7757 (4)0.60520 (14)0.1415 (3)0.0614 (11)
H840.76440.62320.19610.074*
C850.8674 (4)0.61026 (13)0.0715 (3)0.0586 (10)
H850.92030.63130.07880.070*
C860.8823 (3)0.58458 (11)0.0097 (3)0.0489 (8)
H860.94580.58820.05740.059*
C910.7683 (3)0.46900 (10)0.1078 (3)0.0426 (7)
C920.6537 (4)0.45762 (12)0.1105 (3)0.0557 (9)
H920.59810.47680.12600.067*
C930.6194 (4)0.41875 (13)0.0909 (3)0.0664 (12)
H930.54060.41180.09160.080*
C940.6983 (5)0.39050 (13)0.0706 (4)0.0766 (14)
H940.67510.36370.06010.092*
C950.8108 (5)0.40094 (15)0.0654 (6)0.099 (2)
H950.86530.38150.04870.119*
C960.8461 (4)0.44001 (13)0.0845 (4)0.0738 (14)
H960.92480.44680.08130.089*
Atomic displacement parameters (Å2) top
U11U22U33U12U13U23
Cl10.0643 (6)0.0540 (5)0.0458 (5)0.0023 (4)0.0024 (4)0.0125 (4)
Cl20.0366 (4)0.0596 (5)0.0519 (5)0.0018 (4)0.0013 (4)0.0047 (4)
Si10.0472 (5)0.0379 (5)0.0395 (5)0.0010 (4)0.0053 (4)0.0022 (4)
Si20.0400 (5)0.0383 (5)0.0323 (4)0.0015 (3)0.0048 (4)0.0001 (3)
Si30.0375 (5)0.0356 (4)0.0326 (4)0.0004 (3)0.0043 (3)0.0017 (3)
Si40.0342 (5)0.0359 (4)0.0327 (4)0.0002 (3)0.0017 (3)0.0009 (3)
Si50.0360 (5)0.0431 (5)0.0343 (5)0.0009 (4)0.0021 (4)0.0025 (3)
C10.056 (2)0.0370 (17)0.046 (2)0.0018 (15)0.0055 (16)0.0011 (14)
C20.061 (2)0.0421 (19)0.049 (2)0.0004 (16)0.0055 (18)0.0043 (15)
C30.073 (3)0.050 (2)0.052 (2)0.0013 (19)0.015 (2)0.0110 (17)
C40.078 (3)0.054 (2)0.073 (3)0.005 (2)0.024 (2)0.013 (2)
C50.063 (3)0.055 (2)0.076 (3)0.0150 (19)0.016 (2)0.002 (2)
C60.061 (2)0.047 (2)0.054 (2)0.0081 (17)0.0065 (19)0.0030 (16)
C110.049 (2)0.0469 (19)0.046 (2)0.0066 (15)0.0026 (16)0.0054 (15)
C120.068 (3)0.056 (2)0.062 (3)0.013 (2)0.008 (2)0.0039 (19)
C130.077 (3)0.078 (3)0.080 (3)0.028 (3)0.002 (3)0.013 (3)
C140.062 (3)0.110 (4)0.062 (3)0.030 (3)0.001 (2)0.003 (3)
C150.049 (2)0.095 (3)0.059 (3)0.006 (2)0.005 (2)0.009 (2)
C160.053 (2)0.061 (2)0.046 (2)0.0056 (18)0.0064 (17)0.0052 (17)
C210.0423 (19)0.0395 (17)0.0377 (17)0.0020 (13)0.0048 (14)0.0032 (13)
C220.053 (2)0.0438 (18)0.0446 (19)0.0016 (15)0.0100 (16)0.0011 (14)
C230.057 (2)0.050 (2)0.061 (2)0.0106 (17)0.0137 (19)0.0004 (17)
C240.059 (3)0.057 (2)0.062 (2)0.0045 (18)0.024 (2)0.0065 (18)
C250.064 (3)0.053 (2)0.044 (2)0.0048 (18)0.0211 (18)0.0025 (16)
C260.050 (2)0.0443 (18)0.0388 (18)0.0020 (15)0.0060 (15)0.0021 (14)
C310.047 (2)0.0444 (18)0.0382 (17)0.0016 (14)0.0003 (14)0.0063 (14)
C320.048 (2)0.055 (2)0.0379 (18)0.0023 (16)0.0005 (15)0.0044 (15)
C330.058 (3)0.075 (3)0.042 (2)0.010 (2)0.0057 (18)0.0060 (18)
C340.047 (2)0.092 (3)0.055 (2)0.001 (2)0.0093 (19)0.017 (2)
C350.048 (2)0.086 (3)0.066 (3)0.017 (2)0.004 (2)0.012 (2)
C360.055 (2)0.060 (2)0.051 (2)0.0090 (18)0.0003 (18)0.0005 (17)
C410.0428 (19)0.0397 (17)0.0414 (18)0.0009 (14)0.0054 (14)0.0041 (13)
C420.053 (2)0.050 (2)0.061 (2)0.0047 (16)0.0171 (18)0.0052 (17)
C430.069 (3)0.062 (3)0.091 (3)0.019 (2)0.035 (3)0.003 (2)
C440.051 (3)0.068 (3)0.111 (4)0.016 (2)0.029 (3)0.013 (3)
C450.040 (2)0.066 (3)0.103 (4)0.0043 (18)0.010 (2)0.005 (2)
C460.0393 (19)0.048 (2)0.064 (2)0.0026 (15)0.0056 (17)0.0011 (17)
C510.0443 (18)0.0348 (15)0.0366 (16)0.0000 (13)0.0032 (14)0.0007 (12)
C520.057 (2)0.055 (2)0.0385 (18)0.0098 (17)0.0078 (16)0.0051 (15)
C530.080 (3)0.064 (2)0.0349 (19)0.011 (2)0.0048 (19)0.0069 (17)
C540.062 (3)0.054 (2)0.055 (2)0.0096 (18)0.0127 (19)0.0048 (17)
C550.044 (2)0.050 (2)0.059 (2)0.0036 (15)0.0035 (17)0.0011 (16)
C560.0438 (19)0.0426 (18)0.0424 (18)0.0025 (14)0.0022 (15)0.0003 (14)
C610.0365 (17)0.0395 (16)0.0380 (17)0.0003 (13)0.0028 (13)0.0058 (13)
C620.0418 (19)0.0505 (19)0.0450 (19)0.0043 (15)0.0035 (15)0.0018 (15)
C630.045 (2)0.069 (2)0.055 (2)0.0096 (18)0.0110 (18)0.0005 (18)
C640.036 (2)0.074 (3)0.065 (3)0.0056 (17)0.0003 (18)0.010 (2)
C650.045 (2)0.065 (2)0.051 (2)0.0042 (17)0.0090 (17)0.0054 (18)
C660.0438 (19)0.0463 (18)0.0416 (18)0.0008 (14)0.0025 (15)0.0032 (14)
C710.0318 (16)0.0415 (17)0.0381 (17)0.0009 (12)0.0029 (13)0.0015 (13)
C720.051 (2)0.0426 (18)0.0405 (18)0.0002 (15)0.0002 (15)0.0011 (14)
C730.058 (2)0.0420 (18)0.052 (2)0.0072 (16)0.0044 (17)0.0103 (15)
C740.047 (2)0.056 (2)0.0404 (19)0.0073 (16)0.0009 (15)0.0119 (15)
C750.052 (2)0.054 (2)0.0365 (18)0.0030 (16)0.0025 (15)0.0035 (15)
C760.047 (2)0.0436 (18)0.0384 (17)0.0019 (14)0.0008 (14)0.0025 (13)
C810.0449 (19)0.0501 (19)0.0365 (17)0.0073 (15)0.0042 (14)0.0047 (14)
C820.054 (2)0.061 (2)0.042 (2)0.0032 (17)0.0022 (17)0.0014 (16)
C830.072 (3)0.080 (3)0.038 (2)0.012 (2)0.0023 (19)0.0012 (18)
C840.074 (3)0.074 (3)0.039 (2)0.016 (2)0.0152 (19)0.0111 (18)
C850.063 (3)0.065 (2)0.050 (2)0.0034 (19)0.0203 (19)0.0121 (18)
C860.047 (2)0.060 (2)0.0403 (19)0.0036 (16)0.0103 (15)0.0026 (15)
C910.0445 (19)0.0460 (18)0.0369 (17)0.0003 (14)0.0009 (14)0.0048 (13)
C920.052 (2)0.058 (2)0.057 (2)0.0057 (17)0.0099 (18)0.0137 (18)
C930.069 (3)0.066 (3)0.065 (3)0.024 (2)0.011 (2)0.014 (2)
C940.080 (3)0.048 (2)0.098 (4)0.005 (2)0.016 (3)0.011 (2)
C950.067 (3)0.054 (3)0.172 (6)0.013 (2)0.023 (4)0.044 (3)
C960.048 (2)0.059 (2)0.113 (4)0.0042 (19)0.006 (2)0.033 (3)
Geometric parameters (Å, º) top
Cl1—Si12.0950 (13)C42—H420.9500
Cl2—Si52.0806 (13)C43—C441.384 (7)
Si1—C11.874 (4)C43—H430.9500
Si1—C111.880 (4)C44—C451.370 (7)
Si1—Si22.3856 (13)C44—H440.9500
Si2—C211.885 (4)C45—C461.388 (6)
Si2—C311.898 (4)C45—H450.9500
Si2—Si32.3912 (12)C46—H460.9500
Si3—C411.880 (4)C51—C561.391 (5)
Si3—C511.881 (3)C51—C521.403 (5)
Si3—Si42.3913 (12)C52—C531.390 (5)
Si4—C711.882 (3)C52—H520.9500
Si4—C611.884 (3)C53—C541.377 (6)
Si4—Si52.3710 (13)C53—H530.9500
Si5—C811.866 (4)C54—C551.374 (6)
Si5—C911.881 (4)C54—H540.9500
C1—C61.391 (6)C55—C561.391 (5)
C1—C21.403 (5)C55—H550.9500
C2—C31.388 (6)C56—H560.9500
C2—H20.9500C61—C621.400 (5)
C3—C41.370 (7)C61—C661.409 (5)
C3—H30.9500C62—C631.385 (5)
C4—C51.377 (7)C62—H620.9500
C4—H40.9500C63—C641.385 (6)
C5—C61.398 (6)C63—H630.9500
C5—H50.9500C64—C651.372 (6)
C6—H60.9500C64—H640.9500
C11—C161.382 (6)C65—C661.384 (5)
C11—C121.409 (6)C65—H650.9500
C12—C131.385 (7)C66—H660.9500
C12—H120.9500C71—C761.395 (5)
C13—C141.375 (8)C71—C721.400 (5)
C13—H130.9500C72—C731.393 (5)
C14—C151.377 (7)C72—H720.9500
C14—H140.9500C73—C741.378 (5)
C15—C161.398 (6)C73—H730.9500
C15—H150.9500C74—C751.375 (5)
C16—H160.9500C74—H740.9500
C21—C221.397 (5)C75—C761.387 (5)
C21—C261.401 (5)C75—H750.9500
C22—C231.377 (5)C76—H760.9500
C22—H220.9500C81—C861.398 (5)
C23—C241.380 (6)C81—C821.398 (5)
C23—H230.9500C82—C831.405 (6)
C24—C251.383 (6)C82—H820.9500
C24—H240.9500C83—C841.367 (7)
C25—C261.385 (5)C83—H830.9500
C25—H250.9500C84—C851.380 (6)
C26—H260.9500C84—H840.9500
C31—C321.393 (5)C85—C861.388 (5)
C31—C361.395 (5)C85—H850.9500
C32—C331.399 (5)C86—H860.9500
C32—H320.9500C91—C961.385 (6)
C33—C341.371 (7)C91—C921.394 (5)
C33—H330.9500C92—C931.388 (6)
C34—C351.377 (7)C92—H920.9500
C34—H340.9500C93—C941.365 (7)
C35—C361.391 (6)C93—H930.9500
C35—H350.9500C94—C951.365 (8)
C36—H360.9500C94—H940.9500
C41—C461.395 (5)C95—C961.397 (6)
C41—C421.395 (5)C95—H950.9500
C42—C431.384 (6)C96—H960.9500
C1—Si1—C11108.98 (17)C43—C42—C41121.5 (4)
C1—Si1—Cl1106.74 (12)C43—C42—H42119.3
C11—Si1—Cl1106.44 (12)C41—C42—H42119.3
C1—Si1—Si2112.06 (12)C44—C43—C42119.9 (4)
C11—Si1—Si2117.63 (12)C44—C43—H43120.0
Cl1—Si1—Si2104.19 (5)C42—C43—H43120.0
C21—Si2—C31109.08 (16)C45—C44—C43120.0 (4)
C21—Si2—Si1106.63 (11)C45—C44—H44120.0
C31—Si2—Si1106.62 (11)C43—C44—H44120.0
C21—Si2—Si3115.27 (11)C44—C45—C46119.7 (5)
C31—Si2—Si3109.45 (11)C44—C45—H45120.1
Si1—Si2—Si3109.43 (5)C46—C45—H45120.1
C41—Si3—C51111.58 (15)C45—C46—C41121.9 (4)
C41—Si3—Si2105.39 (11)C45—C46—H46119.1
C51—Si3—Si2105.88 (11)C41—C46—H46119.1
C41—Si3—Si4108.34 (11)C56—C51—C52116.6 (3)
C51—Si3—Si4107.41 (10)C56—C51—Si3120.0 (3)
Si2—Si3—Si4118.27 (5)C52—C51—Si3123.4 (3)
C71—Si4—C61108.09 (15)C53—C52—C51121.5 (4)
C71—Si4—Si5106.31 (11)C53—C52—H52119.2
C61—Si4—Si5108.24 (10)C51—C52—H52119.2
C71—Si4—Si3113.31 (11)C54—C53—C52119.9 (4)
C61—Si4—Si3108.40 (11)C54—C53—H53120.1
Si5—Si4—Si3112.31 (5)C52—C53—H53120.1
C81—Si5—C91111.99 (16)C55—C54—C53120.2 (4)
C81—Si5—Cl2105.85 (12)C55—C54—H54119.9
C91—Si5—Cl2105.68 (12)C53—C54—H54119.9
C81—Si5—Si4113.25 (11)C54—C55—C56119.6 (4)
C91—Si5—Si4111.67 (12)C54—C55—H55120.2
Cl2—Si5—Si4107.84 (5)C56—C55—H55120.2
C6—C1—C2117.9 (4)C55—C56—C51122.1 (3)
C6—C1—Si1121.7 (3)C55—C56—H56118.9
C2—C1—Si1120.2 (3)C51—C56—H56118.9
C3—C2—C1120.8 (4)C62—C61—C66116.7 (3)
C3—C2—H2119.6C62—C61—Si4120.7 (3)
C1—C2—H2119.6C66—C61—Si4122.6 (3)
C4—C3—C2120.2 (4)C63—C62—C61122.0 (3)
C4—C3—H3119.9C63—C62—H62119.0
C2—C3—H3119.9C61—C62—H62119.0
C3—C4—C5120.5 (4)C62—C63—C64119.5 (4)
C3—C4—H4119.7C62—C63—H63120.3
C5—C4—H4119.7C64—C63—H63120.3
C4—C5—C6119.7 (4)C65—C64—C63120.3 (4)
C4—C5—H5120.2C65—C64—H64119.8
C6—C5—H5120.2C63—C64—H64119.8
C1—C6—C5121.0 (4)C64—C65—C66120.1 (4)
C1—C6—H6119.5C64—C65—H65119.9
C5—C6—H6119.5C66—C65—H65119.9
C16—C11—C12117.7 (4)C65—C66—C61121.4 (4)
C16—C11—Si1123.3 (3)C65—C66—H66119.3
C12—C11—Si1119.0 (3)C61—C66—H66119.3
C13—C12—C11121.2 (5)C76—C71—C72117.3 (3)
C13—C12—H12119.4C76—C71—Si4121.0 (2)
C11—C12—H12119.4C72—C71—Si4121.6 (2)
C14—C13—C12119.8 (5)C73—C72—C71120.9 (3)
C14—C13—H13120.1C73—C72—H72119.5
C12—C13—H13120.1C71—C72—H72119.5
C13—C14—C15120.4 (5)C74—C73—C72120.1 (3)
C13—C14—H14119.8C74—C73—H73119.9
C15—C14—H14119.8C72—C73—H73119.9
C14—C15—C16119.9 (5)C75—C74—C73120.1 (3)
C14—C15—H15120.1C75—C74—H74119.9
C16—C15—H15120.1C73—C74—H74119.9
C11—C16—C15121.0 (4)C74—C75—C76119.8 (3)
C11—C16—H16119.5C74—C75—H75120.1
C15—C16—H16119.5C76—C75—H75120.1
C22—C21—C26117.0 (3)C75—C76—C71121.7 (3)
C22—C21—Si2122.8 (3)C75—C76—H76119.1
C26—C21—Si2120.1 (3)C71—C76—H76119.1
C23—C22—C21122.1 (3)C86—C81—C82117.9 (3)
C23—C22—H22119.0C86—C81—Si5121.3 (3)
C21—C22—H22119.0C82—C81—Si5120.8 (3)
C22—C23—C24119.8 (4)C81—C82—C83120.2 (4)
C22—C23—H23120.1C81—C82—H82119.9
C24—C23—H23120.1C83—C82—H82119.9
C23—C24—C25119.9 (4)C84—C83—C82120.5 (4)
C23—C24—H24120.0C84—C83—H83119.8
C25—C24—H24120.0C82—C83—H83119.8
C24—C25—C26120.1 (4)C83—C84—C85120.1 (4)
C24—C25—H25120.0C83—C84—H84119.9
C26—C25—H25120.0C85—C84—H84119.9
C25—C26—C21121.2 (4)C84—C85—C86120.0 (4)
C25—C26—H26119.4C84—C85—H85120.0
C21—C26—H26119.4C86—C85—H85120.0
C32—C31—C36117.5 (3)C85—C86—C81121.2 (4)
C32—C31—Si2121.6 (3)C85—C86—H86119.4
C36—C31—Si2121.0 (3)C81—C86—H86119.4
C31—C32—C33121.2 (4)C96—C91—C92117.2 (4)
C31—C32—H32119.4C96—C91—Si5119.8 (3)
C33—C32—H32119.4C92—C91—Si5122.9 (3)
C34—C33—C32120.0 (4)C93—C92—C91121.3 (4)
C34—C33—H33120.0C93—C92—H92119.4
C32—C33—H33120.0C91—C92—H92119.4
C33—C34—C35119.9 (4)C94—C93—C92120.3 (4)
C33—C34—H34120.1C94—C93—H93119.8
C35—C34—H34120.1C92—C93—H93119.8
C34—C35—C36120.3 (4)C95—C94—C93119.7 (4)
C34—C35—H35119.9C95—C94—H94120.2
C36—C35—H35119.9C93—C94—H94120.2
C35—C36—C31121.2 (4)C94—C95—C96120.4 (5)
C35—C36—H36119.4C94—C95—H95119.8
C31—C36—H36119.4C96—C95—H95119.8
C46—C41—C42116.9 (3)C91—C96—C95121.0 (4)
C46—C41—Si3118.9 (3)C91—C96—H96119.5
C42—C41—Si3124.1 (3)C95—C96—H96119.5
C11—Si1—C1—C6145.0 (3)C41—Si3—C51—C56147.5 (3)
Cl1—Si1—C1—C630.5 (3)Si2—Si3—C51—C5633.3 (3)
Si2—Si1—C1—C683.0 (3)Si4—Si3—C51—C5693.9 (3)
C11—Si1—C1—C239.6 (3)C41—Si3—C51—C5232.4 (3)
Cl1—Si1—C1—C2154.2 (3)Si2—Si3—C51—C52146.5 (3)
Si2—Si1—C1—C292.3 (3)Si4—Si3—C51—C5286.2 (3)
C6—C1—C2—C30.0 (5)C56—C51—C52—C531.8 (5)
Si1—C1—C2—C3175.6 (3)Si3—C51—C52—C53178.1 (3)
C1—C2—C3—C40.4 (6)C51—C52—C53—C540.6 (6)
C2—C3—C4—C50.3 (7)C52—C53—C54—C551.9 (7)
C3—C4—C5—C60.3 (7)C53—C54—C55—C560.7 (6)
C2—C1—C6—C50.6 (6)C54—C55—C56—C511.8 (6)
Si1—C1—C6—C5176.0 (3)C52—C51—C56—C553.0 (5)
C4—C5—C6—C10.7 (6)Si3—C51—C56—C55176.8 (3)
C1—Si1—C11—C16149.9 (3)C71—Si4—C61—C621.4 (3)
Cl1—Si1—C11—C1695.4 (3)Si5—Si4—C61—C62116.1 (3)
Si2—Si1—C11—C1620.9 (4)Si3—Si4—C61—C62121.8 (3)
C1—Si1—C11—C1228.3 (4)C71—Si4—C61—C66179.5 (3)
Cl1—Si1—C11—C1286.5 (3)Si5—Si4—C61—C6665.8 (3)
Si2—Si1—C11—C12157.2 (3)Si3—Si4—C61—C6656.3 (3)
C16—C11—C12—C132.3 (6)C66—C61—C62—C630.6 (5)
Si1—C11—C12—C13175.9 (4)Si4—C61—C62—C63177.6 (3)
C11—C12—C13—C141.3 (8)C61—C62—C63—C640.2 (6)
C12—C13—C14—C150.1 (8)C62—C63—C64—C650.1 (6)
C13—C14—C15—C160.3 (8)C63—C64—C65—C660.4 (6)
C12—C11—C16—C152.0 (6)C64—C65—C66—C610.8 (6)
Si1—C11—C16—C15176.1 (3)C62—C61—C66—C650.9 (5)
C14—C15—C16—C110.8 (7)Si4—C61—C66—C65177.3 (3)
C31—Si2—C21—C22132.3 (3)C61—Si4—C71—C76101.8 (3)
Si1—Si2—C21—C22112.9 (3)Si5—Si4—C71—C76142.2 (3)
Si3—Si2—C21—C228.7 (3)Si3—Si4—C71—C7618.3 (3)
C31—Si2—C21—C2651.8 (3)C61—Si4—C71—C7275.2 (3)
Si1—Si2—C21—C2663.0 (3)Si5—Si4—C71—C7240.8 (3)
Si3—Si2—C21—C26175.3 (2)Si3—Si4—C71—C72164.6 (3)
C26—C21—C22—C230.5 (5)C76—C71—C72—C730.8 (5)
Si2—C21—C22—C23175.5 (3)Si4—C71—C72—C73176.3 (3)
C21—C22—C23—C240.7 (6)C71—C72—C73—C740.7 (6)
C22—C23—C24—C250.3 (6)C72—C73—C74—C750.2 (6)
C23—C24—C25—C260.4 (6)C73—C74—C75—C760.3 (6)
C24—C25—C26—C210.6 (6)C74—C75—C76—C710.2 (6)
C22—C21—C26—C250.1 (5)C72—C71—C76—C750.4 (5)
Si2—C21—C26—C25176.3 (3)Si4—C71—C76—C75176.8 (3)
C21—Si2—C31—C3213.2 (3)C91—Si5—C81—C86148.8 (3)
Si1—Si2—C31—C32128.0 (3)Cl2—Si5—C81—C8634.1 (3)
Si3—Si2—C31—C32113.7 (3)Si4—Si5—C81—C8683.8 (3)
C21—Si2—C31—C36168.0 (3)C91—Si5—C81—C8234.4 (3)
Si1—Si2—C31—C3653.2 (3)Cl2—Si5—C81—C82149.1 (3)
Si3—Si2—C31—C3665.1 (3)Si4—Si5—C81—C8292.9 (3)
C36—C31—C32—C330.6 (5)C86—C81—C82—C830.0 (6)
Si2—C31—C32—C33179.5 (3)Si5—C81—C82—C83176.8 (3)
C31—C32—C33—C340.0 (6)C81—C82—C83—C841.8 (6)
C32—C33—C34—C350.1 (7)C82—C83—C84—C852.6 (7)
C33—C34—C35—C360.4 (7)C83—C84—C85—C861.6 (6)
C34—C35—C36—C311.1 (7)C84—C85—C86—C810.2 (6)
C32—C31—C36—C351.1 (6)C82—C81—C86—C851.0 (6)
Si2—C31—C36—C35180.0 (3)Si5—C81—C86—C85175.8 (3)
C51—Si3—C41—C46162.2 (3)C81—Si5—C91—C9694.6 (4)
Si2—Si3—C41—C4683.3 (3)Cl2—Si5—C91—C9620.2 (4)
Si4—Si3—C41—C4644.2 (3)Si4—Si5—C91—C96137.2 (3)
C51—Si3—C41—C4219.0 (4)C81—Si5—C91—C9286.3 (3)
Si2—Si3—C41—C4295.5 (3)Cl2—Si5—C91—C92158.9 (3)
Si4—Si3—C41—C42137.0 (3)Si4—Si5—C91—C9241.9 (3)
C46—C41—C42—C432.7 (6)C96—C91—C92—C930.3 (6)
Si3—C41—C42—C43178.5 (3)Si5—C91—C92—C93178.9 (3)
C41—C42—C43—C441.6 (7)C91—C92—C93—C941.4 (7)
C42—C43—C44—C450.2 (8)C92—C93—C94—C952.8 (9)
C43—C44—C45—C460.7 (8)C93—C94—C95—C962.4 (10)
C44—C45—C46—C410.6 (7)C92—C91—C96—C950.6 (8)
C42—C41—C46—C452.2 (6)Si5—C91—C96—C95178.6 (5)
Si3—C41—C46—C45178.9 (3)C94—C95—C96—C910.7 (10)
 

Acknowledgements

FN gratefully acknowledges a PhD scholarship by the Beilstein-Institut (Frankfurt).

References

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