1,3-Bis[chloro­bis(dimethyl­phenyl­silyl)meth­yl]triselane

The title compound, [Cl(Me₂PhSi)₂CSe]₂Se or C₃₄H₄₄Cl₂Se₃Si₄, exhibits the typical V-shape geometry of the tris­elane chain, with an Se-Se-Se angle of 99.68 (6)° and Se-Se bond lengths of 2.3077 (13) and 2.3081 (14) Å.

Key indicators

• Single-crystal X-ray study
• T = 100 K
• Mean [sigma](C-C) = 0.013 Å
• R factor = 0.064
• wR factor = 0.140
• Data-to-parameter ratio = 19.1

checkCIF/PLATON results

No syntax errors found



Alert level C
PLAT153_ALERT_1_C The su's on the Cell Axes are Equal (x 100000) .        500 Ang.
PLAT154_ALERT_1_C The su's on the Cell Angles are Equal (x 10000)         500 Deg.
PLAT213_ALERT_2_C Atom C10     has ADP max/min Ratio .............       3.10 oblat
PLAT213_ALERT_2_C Atom C15     has ADP max/min Ratio .............       3.50 prola
PLAT213_ALERT_2_C Atom C29     has ADP max/min Ratio .............       3.30 prola
PLAT341_ALERT_3_C Low Bond Precision on C-C bonds (x 1000) Ang ...         13

   0 ALERT level A = In general: serious problem
   0 ALERT level B = Potentially serious problem
   6 ALERT level C = Check and explain
   0 ALERT level G = General alerts; check

   2 ALERT type 1 CIF construction/syntax error, inconsistent or missing data
   3 ALERT type 2 Indicator that the structure model may be wrong or deficient
   1 ALERT type 3 Indicator that the structure quality may be low
   0 ALERT type 4 Improvement, methodology, query or suggestion
   0 ALERT type 5 Informative message, check

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Computing details

Data collection: CrysAlis CCD (Oxford Diffraction, 2006); cell refinement: CrysAlis RED (Oxford Diffraction, 2006); data reduction: CrysAlis RED; program(s) used to solve structure: SIR97 (Altomare et al., 1999); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: DIAMOND (Brandenburg, 1996); software used to prepare material for publication: SHELXL97.

1,3-Bis[chlorobis(dimethylphenylsilyl)methyl]triselane

Crystal data

C34H44Cl2Se3Si4	Z = 2
Mr = 872.84	F(000) = 880
Triclinic, P1	Dx = 1.513 (1) Mg m^−3
Hall symbol: -P 1	Mo Kα radiation, λ = 0.71073 Å
a = 11.297 (5) Å	Cell parameters from 3128 reflections
b = 13.012 (5) Å	θ = 3.7–30.0°
c = 13.751 (5) Å	µ = 3.17 mm^−1
α = 94.688 (5)°	T = 100 K
β = 107.801 (5)°	Needle, yellow
γ = 91.108 (5)°	0.31 × 0.07 × 0.06 mm
V = 1916.0 (13) Å^3

Data collection

Oxford Xcalibur3 CCD area-detector diffractometer	11156 independent reflections
Radiation source: fine-focus sealed tube	7407 reflections with I > 2σ(I)
Graphite monochromator	Rint = 0.065
Detector resolution: 15.9809 pixels mm^-1	θmax = 30.0°, θmin = 3.7°
ω scans	h = −15→15
Absorption correction: multi-scan (ABSPACK; Oxford Diffraction, 2006)	k = −18→18
Tmin = 0.461, Tmax = 0.830	l = −19→19
13467 measured reflections

Refinement

Refinement on F^2	Primary atom site location: structure-invariant direct methods
Least-squares matrix: full	Secondary atom site location: difference Fourier map
R[F^2 > 2σ(F^2)] = 0.065	Hydrogen site location: inferred from neighbouring sites
wR(F^2) = 0.140	H-atom parameters constrained
S = 0.92	w = 1/[σ^2(Fo^2) + (0.0485P)^2] where P = (Fo^2 + 2Fc^2)/3
7406 reflections	(Δ/σ)max < 0.001
388 parameters	Δρmax = 1.36 e Å^−3
0 restraints	Δρmin = −0.68 e Å^−3

Special details

Refinement. Details of H atom refinement: riding with U(H)=1.2*U(C) for CH2 and CH, 1.5*U(C) for CH3

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

	x	y	z	Uiso*/Ueq
Se1	−0.07903 (8)	0.62770 (6)	0.20448 (6)	0.0224 (2)
Se2	0.05626 (8)	0.49917 (7)	0.26132 (7)	0.0237 (2)
Se3	−0.08542 (9)	0.36528 (7)	0.25082 (6)	0.0247 (2)
Cl2	−0.1343 (2)	0.38785 (16)	0.01522 (16)	0.0275 (5)
Cl1	−0.1234 (2)	0.59878 (16)	0.41606 (16)	0.0258 (5)
Si2	−0.2764 (2)	0.74238 (18)	0.27300 (17)	0.0211 (6)
Si4	0.0097 (2)	0.20932 (18)	0.10291 (17)	0.0213 (6)
Si3	−0.2865 (2)	0.23571 (18)	0.08423 (18)	0.0243 (6)
Si1	0.0202 (2)	0.78904 (18)	0.40342 (17)	0.0212 (6)
C13	0.2132 (8)	0.6587 (6)	0.5041 (6)	0.026 (2)
H13	0.1668	0.6526	0.5507	0.032*
C34	0.2041 (8)	0.3492 (6)	0.0900 (6)	0.020 (2)
H34	0.1557	0.3526	0.0205	0.024*
C17	0.2386 (8)	0.7239 (6)	0.3554 (6)	0.027 (2)
H17	0.2102	0.7639	0.2987	0.032*
C4	−0.3094 (7)	0.8395 (7)	0.3688 (6)	0.024 (2)
C12	0.1693 (7)	0.7202 (6)	0.4239 (6)	0.021 (2)
C18	−0.1245 (8)	0.2947 (6)	0.1092 (6)	0.024 (2)
C29	0.1620 (7)	0.2877 (6)	0.1532 (6)	0.020 (2)
C14	0.3209 (8)	0.6063 (6)	0.5191 (6)	0.026 (2)
H14	0.3503	0.5673	0.5765	0.031*
C26	−0.3250 (8)	0.0298 (6)	−0.0149 (7)	0.027 (2)
H26	−0.3081	0.0085	0.0523	0.033*
C33	0.3157 (8)	0.4044 (7)	0.1295 (7)	0.030 (2)
H33	0.3415	0.4486	0.0874	0.036*
C15	0.3867 (8)	0.6119 (6)	0.4472 (7)	0.030 (2)
H15	0.4593	0.5739	0.4541	0.036*
C20	−0.2964 (9)	0.1737 (7)	0.1984 (6)	0.036 (2)
H20A	−0.2779	0.2256	0.2575	0.054*
H20B	−0.2360	0.1196	0.2133	0.054*
H20C	−0.3805	0.1431	0.1848	0.054*
C25	−0.3512 (9)	−0.0451 (7)	−0.0968 (8)	0.042 (3)
H25	−0.3511	−0.1163	−0.0859	0.050*
C16	0.3450 (8)	0.6726 (7)	0.3671 (7)	0.032 (2)
H16	0.3906	0.6786	0.3200	0.038*
C30	0.2391 (8)	0.2832 (6)	0.2520 (7)	0.030 (2)
H30	0.2138	0.2402	0.2954	0.036*
C5	−0.3030 (7)	0.9451 (6)	0.3572 (6)	0.024 (2)
H5	−0.2854	0.9675	0.2988	0.029*
C7	−0.3497 (8)	0.9873 (7)	0.5123 (7)	0.035 (2)
H7	−0.3643	1.0372	0.5613	0.042*
C24	−0.3771 (8)	−0.0152 (7)	−0.1932 (7)	0.030 (2)
H24	−0.3950	−0.0662	−0.2499	0.036*
C23	−0.3780 (8)	0.0869 (7)	−0.2102 (6)	0.027 (2)
H23	−0.3980	0.1062	−0.2783	0.033*
C28	0.0150 (8)	0.1022 (6)	0.1862 (6)	0.024 (2)
H28A	0.0271	0.1312	0.2568	0.037*
H28B	0.0842	0.0586	0.1844	0.037*
H28C	−0.0635	0.0607	0.1611	0.037*
C9	−0.3375 (7)	0.8096 (7)	0.4546 (6)	0.029 (2)
H9	−0.3438	0.7386	0.4649	0.034*
C31	0.3509 (9)	0.3383 (7)	0.2901 (7)	0.038 (3)
H31	0.4004	0.3354	0.3594	0.046*
C1	−0.1116 (8)	0.6950 (6)	0.3288 (6)	0.022 (2)
C8	−0.3563 (8)	0.8853 (8)	0.5248 (7)	0.039 (3)
H8	−0.3744	0.8649	0.5837	0.047*
C32	0.3904 (9)	0.3978 (8)	0.2264 (8)	0.045 (3)
H32	0.4693	0.4339	0.2504	0.054*
C11	0.0181 (8)	0.8965 (6)	0.3230 (6)	0.024 (2)
H11A	0.0274	0.8695	0.2572	0.036*
H11B	0.0869	0.9465	0.3582	0.036*
H11C	−0.0611	0.9305	0.3109	0.036*
C6	−0.3222 (7)	1.0173 (7)	0.4299 (7)	0.028 (2)
H6	−0.3160	1.0888	0.4216	0.034*
C2	−0.2888 (8)	0.8051 (6)	0.1525 (6)	0.023 (2)
H2A	−0.2295	0.8647	0.1682	0.034*
H2B	−0.3735	0.8280	0.1238	0.034*
H2C	−0.2697	0.7553	0.1026	0.034*
C27	−0.0110 (8)	0.1563 (6)	−0.0314 (6)	0.026 (2)
H27A	−0.0128	0.2133	−0.0741	0.039*
H27B	−0.0895	0.1150	−0.0578	0.039*
H27C	0.0584	0.1128	−0.0329	0.039*
C22	−0.3494 (7)	0.1625 (7)	−0.1278 (7)	0.029 (2)
H22	−0.3482	0.2335	−0.1395	0.034*
C10	0.0029 (7)	0.8369 (6)	0.5275 (6)	0.022 (2)
H10A	0.0046	0.7790	0.5691	0.033*
H10B	−0.0766	0.8704	0.5162	0.033*
H10C	0.0714	0.8870	0.5634	0.033*
C21	−0.3223 (7)	0.1335 (6)	−0.0264 (6)	0.023 (2)
C19	−0.4011 (8)	0.3394 (7)	0.0542 (7)	0.036 (2)
H19A	−0.3943	0.3720	−0.0058	0.054*
H19B	−0.3834	0.3914	0.1131	0.054*
H19C	−0.4855	0.3091	0.0395	0.054*
C3	−0.3896 (8)	0.6296 (6)	0.2440 (6)	0.028 (2)
H3A	−0.3714	0.5797	0.1937	0.042*
H3B	−0.4742	0.6529	0.2159	0.042*
H3C	−0.3826	0.5969	0.3071	0.042*

Atomic displacement parameters (Ų)

	U^11	U^22	U^33	U^12	U^13	U^23
Se1	0.0299 (6)	0.0203 (5)	0.0177 (5)	0.0059 (4)	0.0085 (4)	0.0000 (4)
Se2	0.0251 (6)	0.0201 (5)	0.0263 (5)	0.0023 (4)	0.0091 (4)	−0.0005 (4)
Se3	0.0326 (6)	0.0203 (5)	0.0221 (5)	−0.0033 (4)	0.0112 (4)	−0.0026 (4)
Cl2	0.0351 (14)	0.0231 (12)	0.0233 (13)	0.0041 (11)	0.0065 (10)	0.0057 (10)
Cl1	0.0310 (14)	0.0233 (12)	0.0262 (13)	0.0020 (10)	0.0128 (10)	0.0040 (10)
Si2	0.0221 (14)	0.0224 (13)	0.0200 (14)	0.0023 (11)	0.0082 (11)	0.0011 (11)
Si4	0.0249 (15)	0.0239 (14)	0.0171 (14)	0.0014 (12)	0.0098 (11)	0.0007 (11)
Si3	0.0254 (15)	0.0281 (15)	0.0194 (14)	−0.0001 (12)	0.0081 (11)	−0.0011 (11)
Si1	0.0210 (14)	0.0252 (14)	0.0189 (14)	0.0040 (12)	0.0075 (11)	0.0062 (11)
C13	0.034 (6)	0.023 (5)	0.021 (5)	0.000 (5)	0.007 (4)	−0.001 (4)
C34	0.027 (5)	0.025 (5)	0.010 (4)	0.019 (4)	0.006 (4)	0.005 (4)
C17	0.028 (6)	0.032 (5)	0.025 (5)	−0.003 (5)	0.016 (4)	−0.002 (4)
C4	0.009 (5)	0.037 (6)	0.021 (5)	0.001 (4)	−0.001 (4)	0.003 (4)
C12	0.012 (5)	0.025 (5)	0.027 (5)	0.001 (4)	0.006 (4)	0.010 (4)
C18	0.032 (6)	0.014 (5)	0.025 (5)	0.000 (4)	0.006 (4)	0.008 (4)
C29	0.017 (5)	0.013 (4)	0.034 (6)	0.011 (4)	0.010 (4)	0.012 (4)
C14	0.033 (6)	0.014 (6)	0.025 (5)	0.010 (5)	0.010 (4)	0.011 (4)
C26	0.036 (6)	0.021 (5)	0.027 (6)	0.001 (4)	0.012 (4)	0.004 (4)
C33	0.032 (6)	0.030 (6)	0.030 (6)	0.012 (5)	0.011 (5)	0.003 (4)
C15	0.009 (5)	0.025 (5)	0.049 (6)	0.008 (4)	−0.002 (4)	0.011 (5)
C20	0.048 (7)	0.035 (6)	0.029 (6)	−0.013 (5)	0.022 (5)	−0.004 (4)
C25	0.047 (7)	0.028 (6)	0.051 (7)	−0.013 (5)	0.019 (6)	0.000 (5)
C16	0.012 (5)	0.045 (6)	0.039 (6)	0.003 (5)	0.010 (4)	−0.001 (5)
C30	0.035 (6)	0.015 (5)	0.038 (6)	−0.006 (4)	0.007 (5)	0.014 (4)
C5	0.020 (5)	0.028 (5)	0.023 (5)	0.000 (4)	0.005 (4)	0.004 (4)
C7	0.026 (6)	0.028 (6)	0.047 (7)	0.007 (5)	0.007 (5)	−0.013 (5)
C24	0.029 (6)	0.036 (6)	0.021 (5)	−0.016 (5)	0.008 (4)	−0.014 (4)
C23	0.031 (6)	0.036 (6)	0.018 (5)	0.004 (5)	0.011 (4)	0.000 (4)
C28	0.026 (5)	0.019 (5)	0.022 (5)	−0.007 (4)	−0.002 (4)	0.002 (4)
C9	0.020 (5)	0.032 (6)	0.030 (6)	0.006 (4)	0.001 (4)	0.004 (5)
C31	0.035 (6)	0.038 (6)	0.034 (6)	−0.012 (5)	0.003 (5)	0.000 (5)
C1	0.037 (6)	0.020 (5)	0.013 (5)	0.011 (4)	0.009 (4)	0.009 (4)
C8	0.033 (6)	0.066 (8)	0.023 (6)	0.021 (6)	0.011 (5)	0.018 (5)
C32	0.029 (6)	0.046 (7)	0.057 (8)	0.000 (5)	0.005 (6)	0.013 (6)
C11	0.038 (6)	0.015 (5)	0.027 (5)	0.006 (4)	0.018 (4)	0.013 (4)
C6	0.017 (5)	0.021 (5)	0.042 (6)	−0.002 (4)	0.002 (5)	0.006 (5)
C2	0.027 (5)	0.022 (5)	0.018 (5)	0.007 (4)	0.004 (4)	0.004 (4)
C27	0.027 (5)	0.021 (5)	0.024 (5)	0.004 (4)	−0.002 (4)	0.002 (4)
C22	0.020 (5)	0.032 (6)	0.032 (6)	0.000 (4)	0.006 (4)	0.008 (5)
C10	0.019 (5)	0.020 (5)	0.019 (5)	−0.011 (4)	−0.005 (4)	−0.005 (4)
C21	0.007 (5)	0.029 (5)	0.029 (5)	−0.006 (4)	0.000 (4)	0.003 (4)
C19	0.027 (6)	0.038 (6)	0.040 (6)	−0.004 (5)	0.007 (5)	−0.003 (5)
C3	0.031 (6)	0.018 (5)	0.033 (6)	0.010 (4)	0.009 (4)	−0.006 (4)

Geometric parameters (Å, º)

Se1—C1	1.995 (8)	C20—H20C	0.9800
Se1—Se2	2.3077 (13)	C25—C24	1.359 (12)
Se2—Se3	2.3081 (14)	C25—H25	0.9500
Se3—C18	1.999 (8)	C16—H16	0.9500
Cl2—C18	1.824 (8)	C30—C31	1.372 (11)
Cl1—C1	1.833 (8)	C30—H30	0.9500
Si2—C3	1.862 (8)	C5—C6	1.384 (11)
Si2—C2	1.874 (8)	C5—H5	0.9500
Si2—C4	1.875 (9)	C7—C6	1.347 (12)
Si2—C1	1.919 (8)	C7—C8	1.356 (12)
Si4—C27	1.861 (8)	C7—H7	0.9500
Si4—C28	1.865 (8)	C24—C23	1.366 (11)
Si4—C29	1.889 (9)	C24—H24	0.9500
Si4—C18	1.916 (9)	C23—C22	1.393 (11)
Si3—C20	1.855 (8)	C23—H23	0.9500
Si3—C19	1.870 (9)	C28—H28A	0.9800
Si3—C21	1.876 (9)	C28—H28B	0.9800
Si3—C18	1.890 (9)	C28—H28C	0.9800
Si1—C10	1.837 (8)	C9—C8	1.386 (12)
Si1—C11	1.849 (7)	C9—H9	0.9500
Si1—C12	1.878 (8)	C31—C32	1.379 (12)
Si1—C1	1.886 (9)	C31—H31	0.9500
C13—C14	1.374 (11)	C8—H8	0.9500
C13—C12	1.388 (10)	C32—H32	0.9500
C13—H13	0.9500	C11—H11A	0.9800
C34—C33	1.372 (11)	C11—H11B	0.9800
C34—C29	1.405 (10)	C11—H11C	0.9800
C34—H34	0.9500	C6—H6	0.9500
C17—C16	1.359 (11)	C2—H2A	0.9800
C17—C12	1.400 (10)	C2—H2B	0.9800
C17—H17	0.9500	C2—H2C	0.9800
C4—C9	1.394 (11)	C27—H27A	0.9800
C4—C5	1.400 (11)	C27—H27B	0.9800
C29—C30	1.378 (11)	C27—H27C	0.9800
C14—C15	1.412 (11)	C22—C21	1.417 (11)
C14—H14	0.9500	C22—H22	0.9500
C26—C21	1.373 (11)	C10—H10A	0.9800
C26—C25	1.383 (11)	C10—H10B	0.9800
C26—H26	0.9500	C10—H10C	0.9800
C33—C32	1.352 (12)	C19—H19A	0.9800
C33—H33	0.9500	C19—H19B	0.9800
C15—C16	1.378 (11)	C19—H19C	0.9800
C15—H15	0.9500	C3—H3A	0.9800
C20—H20A	0.9800	C3—H3B	0.9800
C20—H20B	0.9800	C3—H3C	0.9800
C1—Se1—Se2	105.9 (2)	C4—C5—H5	119.7
Se1—Se2—Se3	99.68 (6)	C6—C7—C8	119.4 (9)
C18—Se3—Se2	106.2 (2)	C6—C7—H7	120.3
C3—Si2—C2	109.7 (4)	C8—C7—H7	120.3
C3—Si2—C4	110.4 (4)	C25—C24—C23	121.2 (8)
C2—Si2—C4	108.9 (4)	C25—C24—H24	119.4
C3—Si2—C1	108.7 (4)	C23—C24—H24	119.4
C2—Si2—C1	109.9 (4)	C24—C23—C22	120.1 (8)
C4—Si2—C1	109.2 (3)	C24—C23—H23	119.9
C27—Si4—C28	110.3 (4)	C22—C23—H23	119.9
C27—Si4—C29	109.0 (4)	Si4—C28—H28A	109.5
C28—Si4—C29	108.4 (4)	Si4—C28—H28B	109.5
C27—Si4—C18	110.7 (4)	H28A—C28—H28B	109.5
C28—Si4—C18	108.7 (4)	Si4—C28—H28C	109.5
C29—Si4—C18	109.7 (4)	H28A—C28—H28C	109.5
C20—Si3—C19	110.3 (4)	H28B—C28—H28C	109.5
C20—Si3—C21	107.9 (4)	C8—C9—C4	118.9 (9)
C19—Si3—C21	109.9 (4)	C8—C9—H9	120.6
C20—Si3—C18	110.0 (4)	C4—C9—H9	120.6
C19—Si3—C18	109.0 (4)	C30—C31—C32	119.1 (9)
C21—Si3—C18	109.8 (4)	C30—C31—H31	120.5
C10—Si1—C11	110.7 (4)	C32—C31—H31	120.5
C10—Si1—C12	110.0 (4)	Cl1—C1—Si1	106.5 (4)
C11—Si1—C12	110.1 (4)	Cl1—C1—Si2	106.1 (4)
C10—Si1—C1	111.5 (3)	Si1—C1—Si2	120.2 (4)
C11—Si1—C1	106.8 (4)	Cl1—C1—Se1	110.7 (4)
C12—Si1—C1	107.7 (4)	Si1—C1—Se1	111.1 (4)
C14—C13—C12	122.8 (8)	Si2—C1—Se1	102.1 (4)
C14—C13—H13	118.6	C7—C8—C9	122.3 (9)
C12—C13—H13	118.6	C7—C8—H8	118.8
C33—C34—C29	119.4 (8)	C9—C8—H8	118.8
C33—C34—H34	120.3	C33—C32—C31	119.4 (10)
C29—C34—H34	120.3	C33—C32—H32	120.3
C16—C17—C12	122.5 (8)	C31—C32—H32	120.3
C16—C17—H17	118.8	Si1—C11—H11A	109.5
C12—C17—H17	118.8	Si1—C11—H11B	109.5
C9—C4—C5	118.0 (8)	H11A—C11—H11B	109.5
C9—C4—Si2	121.6 (7)	Si1—C11—H11C	109.5
C5—C4—Si2	120.4 (6)	H11A—C11—H11C	109.5
C13—C12—C17	116.4 (8)	H11B—C11—H11C	109.5
C13—C12—Si1	122.1 (6)	C7—C6—C5	120.7 (8)
C17—C12—Si1	121.3 (6)	C7—C6—H6	119.6
Cl2—C18—Si3	107.3 (4)	C5—C6—H6	119.6
Cl2—C18—Si4	105.8 (4)	Si2—C2—H2A	109.5
Si3—C18—Si4	120.4 (4)	Si2—C2—H2B	109.5
Cl2—C18—Se3	111.2 (4)	H2A—C2—H2B	109.5
Si3—C18—Se3	103.1 (4)	Si2—C2—H2C	109.5
Si4—C18—Se3	108.9 (4)	H2A—C2—H2C	109.5
C30—C29—C34	117.3 (8)	H2B—C2—H2C	109.5
C30—C29—Si4	121.3 (6)	Si4—C27—H27A	109.5
C34—C29—Si4	121.4 (6)	Si4—C27—H27B	109.5
C13—C14—C15	118.5 (7)	H27A—C27—H27B	109.5
C13—C14—H14	120.8	Si4—C27—H27C	109.5
C15—C14—H14	120.8	H27A—C27—H27C	109.5
C21—C26—C25	122.8 (8)	H27B—C27—H27C	109.5
C21—C26—H26	118.6	C23—C22—C21	119.8 (8)
C25—C26—H26	118.6	C23—C22—H22	120.1
C32—C33—C34	122.2 (9)	C21—C22—H22	120.1
C32—C33—H33	118.9	Si1—C10—H10A	109.5
C34—C33—H33	118.9	Si1—C10—H10B	109.5
C16—C15—C14	119.7 (8)	H10A—C10—H10B	109.5
C16—C15—H15	120.2	Si1—C10—H10C	109.5
C14—C15—H15	120.2	H10A—C10—H10C	109.5
Si3—C20—H20A	109.5	H10B—C10—H10C	109.5
Si3—C20—H20B	109.5	C26—C21—C22	117.1 (8)
H20A—C20—H20B	109.5	C26—C21—Si3	123.2 (6)
Si3—C20—H20C	109.5	C22—C21—Si3	119.7 (6)
H20A—C20—H20C	109.5	Si3—C19—H19A	109.5
H20B—C20—H20C	109.5	Si3—C19—H19B	109.5
C24—C25—C26	118.9 (9)	H19A—C19—H19B	109.5
C24—C25—H25	120.6	Si3—C19—H19C	109.5
C26—C25—H25	120.6	H19A—C19—H19C	109.5
C17—C16—C15	120.1 (8)	H19B—C19—H19C	109.5
C17—C16—H16	120.0	Si2—C3—H3A	109.5
C15—C16—H16	120.0	Si2—C3—H3B	109.5
C31—C30—C29	122.6 (8)	H3A—C3—H3B	109.5
C31—C30—H30	118.7	Si2—C3—H3C	109.5
C29—C30—H30	118.7	H3A—C3—H3C	109.5
C6—C5—C4	120.6 (8)	H3B—C3—H3C	109.5
C6—C5—H5	119.7
C1—Se1—Se2—Se3	88.4 (3)	C21—C26—C25—C24	−0.9 (14)
Se1—Se2—Se3—C18	89.3 (2)	C12—C17—C16—C15	1.7 (13)
C3—Si2—C4—C9	43.2 (8)	C14—C15—C16—C17	−2.3 (13)
C2—Si2—C4—C9	163.7 (7)	C34—C29—C30—C31	2.1 (13)
C1—Si2—C4—C9	−76.2 (7)	Si4—C29—C30—C31	179.2 (7)
C3—Si2—C4—C5	−138.5 (7)	C9—C4—C5—C6	1.0 (12)
C2—Si2—C4—C5	−18.0 (8)	Si2—C4—C5—C6	−177.3 (6)
C1—Si2—C4—C5	102.1 (7)	C26—C25—C24—C23	−0.2 (14)
C14—C13—C12—C17	2.1 (12)	C25—C24—C23—C22	1.3 (13)
C14—C13—C12—Si1	178.8 (6)	C5—C4—C9—C8	−0.8 (12)
C16—C17—C12—C13	−1.5 (12)	Si2—C4—C9—C8	177.5 (6)
C16—C17—C12—Si1	−178.2 (7)	C29—C30—C31—C32	−2.4 (14)
C10—Si1—C12—C13	37.7 (8)	C10—Si1—C1—Cl1	−50.9 (5)
C11—Si1—C12—C13	160.0 (7)	C11—Si1—C1—Cl1	−171.9 (4)
C1—Si1—C12—C13	−84.0 (7)	C12—Si1—C1—Cl1	69.9 (5)
C10—Si1—C12—C17	−145.7 (7)	C10—Si1—C1—Si2	69.5 (5)
C11—Si1—C12—C17	−23.5 (8)	C11—Si1—C1—Si2	−51.5 (5)
C1—Si1—C12—C17	92.6 (7)	C12—Si1—C1—Si2	−169.7 (4)
C20—Si3—C18—Cl2	−161.8 (4)	C10—Si1—C1—Se1	−171.5 (4)
C19—Si3—C18—Cl2	−40.8 (5)	C11—Si1—C1—Se1	67.5 (4)
C21—Si3—C18—Cl2	79.7 (5)	C12—Si1—C1—Se1	−50.7 (5)
C20—Si3—C18—Si4	77.3 (6)	C3—Si2—C1—Cl1	−40.8 (5)
C19—Si3—C18—Si4	−161.7 (4)	C2—Si2—C1—Cl1	−160.9 (4)
C21—Si3—C18—Si4	−41.3 (6)	C4—Si2—C1—Cl1	79.7 (5)
C20—Si3—C18—Se3	−44.3 (5)	C3—Si2—C1—Si1	−161.4 (4)
C19—Si3—C18—Se3	76.7 (4)	C2—Si2—C1—Si1	78.5 (5)
C21—Si3—C18—Se3	−162.9 (3)	C4—Si2—C1—Si1	−40.9 (6)
C27—Si4—C18—Cl2	−52.4 (5)	C3—Si2—C1—Se1	75.2 (4)
C28—Si4—C18—Cl2	−173.7 (4)	C2—Si2—C1—Se1	−44.9 (5)
C29—Si4—C18—Cl2	67.9 (5)	C4—Si2—C1—Se1	−164.3 (4)
C27—Si4—C18—Si3	69.3 (5)	Se2—Se1—C1—Cl1	−38.3 (4)
C28—Si4—C18—Si3	−52.0 (6)	Se2—Se1—C1—Si1	79.7 (4)
C29—Si4—C18—Si3	−170.4 (4)	Se2—Se1—C1—Si2	−151.0 (2)
C27—Si4—C18—Se3	−172.0 (4)	C6—C7—C8—C9	−1.0 (14)
C28—Si4—C18—Se3	66.7 (4)	C4—C9—C8—C7	0.8 (13)
C29—Si4—C18—Se3	−51.7 (5)	C34—C33—C32—C31	−3.6 (14)
Se2—Se3—C18—Cl2	−38.6 (4)	C30—C31—C32—C33	3.0 (14)
Se2—Se3—C18—Si3	−153.3 (3)	C8—C7—C6—C5	1.2 (13)
Se2—Se3—C18—Si4	77.6 (3)	C4—C5—C6—C7	−1.2 (13)
C33—C34—C29—C30	−2.5 (11)	C24—C23—C22—C21	−1.4 (13)
C33—C34—C29—Si4	−179.5 (6)	C25—C26—C21—C22	0.8 (13)
C27—Si4—C29—C30	−139.3 (7)	C25—C26—C21—Si3	−179.9 (7)
C28—Si4—C29—C30	−19.2 (8)	C23—C22—C21—C26	0.4 (12)
C18—Si4—C29—C30	99.3 (7)	C23—C22—C21—Si3	−179.0 (6)
C27—Si4—C29—C34	37.6 (7)	C20—Si3—C21—C26	−13.8 (8)
C28—Si4—C29—C34	157.7 (6)	C19—Si3—C21—C26	−134.1 (7)
C18—Si4—C29—C34	−83.8 (7)	C18—Si3—C21—C26	106.1 (7)
C12—C13—C14—C15	−2.8 (13)	C20—Si3—C21—C22	165.5 (6)
C29—C34—C33—C32	3.4 (13)	C19—Si3—C21—C22	45.2 (7)
C13—C14—C15—C16	2.8 (13)	C18—Si3—C21—C22	−74.6 (7)