Tris[(pentafluorophenyl)trimethyl­silylamido](tetrahydrofuran)­samarium(III)

In the title complex, [Sm(C₉H₉F₅NSi)₃(C₄H₈O)], the Sm metal center is coordinated in a highly distorted tetrahedral geometry by the three N atoms of the amido ligands and by the O atom of the tetra­hydro­furan ligand. Principal bond lengths include: Sm—N 2.299 (4), 2.339 (4) and 2.366 (4) Å, and Sm—O 2.446 (3) Å, close Sm...F contacts of 2.536 (3) and 2.556 (3) Å, and an `agostic' Sm...C interaction of 3.154 (4) Å.

Computing details

Data collection: XSCANS (Siemens, 1994); cell refinement: XSCANS; data reduction: XSCANS; program(s) used to solve structure: SHELXS86 (Sheldrick, 1985); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: SHELXL97; software used to prepare material for publication: SHELXL97.

Tris[(pentafluorophenyl)trimethylsilylamido](tetrahydrofuran)samarium(III)

Crystal data

[Sm(C9H9F5NSi)3(C4H8O)]	F(000) = 1956
Mr = 985.24	Dx = 1.675 Mg m^−3
Monoclinic, P21/c	Mo Kα radiation, λ = 0.71073 Å
a = 17.447 (3) Å	Cell parameters from 31 reflections
b = 10.467 (2) Å	θ = 13.0–13.5°
c = 21.934 (4) Å	µ = 1.70 mm^−1
β = 102.77 (1)°	T = 203 K
V = 3906.5 (12) Å^3	Block, yellow
Z = 4	0.45 × 0.33 × 0.25 mm

Data collection

Siemens P4/PC diffractometer	5303 reflections with I > 2σ(I)
Radiation source: fine-focus sealed tube	Rint = 0.041
Graphite monochromator	θmax = 25.0°, θmin = 2.6°
ω scans	h = −20→20
Absorption correction: empirical (using intensity measurements) (XSCANS; Siemens, 1994)	k = −12→1
Tmin = 0.46, Tmax = 0.65	l = −1→26
8237 measured reflections	3 standard reflections every 97 reflections
6811 independent reflections	intensity decay: 13 (linear)

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)] = 0.038	Hydrogen site location: inferred from neighbouring sites
wR(F^2) = 0.101	H-atom parameters constrained
S = 1.04	w = 1/[σ^2(Fo^2) + (0.0451P)^2 + 4.7821P] where P = (Fo^2 + 2Fc^2)/3
6811 reflections	(Δ/σ)max = 0.001
487 parameters	Δρmax = 0.99 (1.0Å from Sm1) e Å^−3
0 restraints	Δρmin = −1.02 (1.0Å from Sm1) e Å^−3

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. 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.

Hydrogen atom positions were idealized; C—H distances were fixed at 0.93 Å for aromatic, 0.96 Å for methyl, and 0.98 Å for methylene. The hydrogen atom positions were refined using the riding model, with their isotropic temperature factors set to 1.5 (methyl) or 1.2 (methylene, aromatic) times the equivalent isotropic U of the atom they were bonded to.

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

	x	y	z	Uiso*/Ueq
Sm1	0.249096 (13)	0.01041 (2)	0.754458 (10)	0.03195 (9)
Si1	0.22618 (8)	−0.21384 (13)	0.63541 (7)	0.0430 (3)
Si2	0.07850 (8)	0.20103 (14)	0.67863 (7)	0.0418 (3)
Si3	0.43041 (8)	0.14615 (14)	0.83873 (6)	0.0418 (3)
O1	0.3140 (2)	−0.1701 (3)	0.81568 (16)	0.0507 (9)
N1	0.2762 (2)	−0.0728 (4)	0.66120 (17)	0.0355 (9)
N2	0.1329 (2)	0.1269 (4)	0.74634 (17)	0.0372 (9)
N3	0.3290 (2)	0.1381 (4)	0.82706 (18)	0.0377 (9)
C1	0.1609 (3)	−0.2361 (5)	0.6925 (2)	0.0498 (13)
H1A	0.1927	−0.2425	0.7341	0.075*
H1B	0.1306	−0.3129	0.6824	0.075*
H1C	0.1261	−0.1643	0.6900	0.075*
C2	0.1636 (3)	−0.2011 (6)	0.5553 (2)	0.0565 (15)
H2A	0.1964	−0.1901	0.5258	0.085*
H2B	0.1291	−0.1290	0.5531	0.085*
H2C	0.1330	−0.2776	0.5455	0.085*
C3	0.2872 (4)	−0.3622 (5)	0.6381 (3)	0.0676 (17)
H3A	0.3204	−0.3713	0.6791	0.101*
H3B	0.3191	−0.3559	0.6077	0.101*
H3C	0.2533	−0.4352	0.6289	0.101*
C4	0.1043 (4)	0.3715 (5)	0.6694 (3)	0.0654 (16)
H4A	0.0935	0.4205	0.7036	0.098*
H4B	0.0734	0.4040	0.6307	0.098*
H4C	0.1591	0.3781	0.6691	0.098*
C5	−0.0286 (3)	0.1805 (6)	0.6742 (3)	0.0560 (14)
H5A	−0.0428	0.2240	0.7087	0.084*
H5B	−0.0405	0.0912	0.6761	0.084*
H5C	−0.0579	0.2156	0.6356	0.084*
C6	0.1013 (3)	0.1145 (6)	0.6110 (2)	0.0578 (15)
H6A	0.1563	0.1229	0.6117	0.087*
H6B	0.0710	0.1499	0.5729	0.087*
H6C	0.0885	0.0257	0.6135	0.087*
C7	0.4835 (3)	0.0813 (7)	0.9157 (2)	0.0627 (17)
H7A	0.4675	−0.0055	0.9198	0.094*
H7B	0.4713	0.1320	0.9488	0.094*
H7C	0.5391	0.0838	0.9181	0.094*
C8	0.4598 (3)	0.0492 (7)	0.7763 (3)	0.0673 (18)
H8A	0.4430	−0.0375	0.7790	0.101*
H8B	0.5159	0.0517	0.7817	0.101*
H8C	0.4355	0.0837	0.7361	0.101*
C9	0.4641 (3)	0.3132 (6)	0.8341 (4)	0.092 (3)
H9A	0.4377	0.3502	0.7950	0.138*
H9B	0.5198	0.3140	0.8369	0.138*
H9C	0.4524	0.3619	0.8680	0.138*
C10	0.3139 (3)	0.0041 (5)	0.6258 (2)	0.0381 (11)
C11	0.3228 (3)	0.1342 (5)	0.6382 (2)	0.0374 (11)
C12	0.3599 (3)	0.2202 (5)	0.6082 (2)	0.0474 (13)
C13	0.3920 (3)	0.1776 (6)	0.5605 (3)	0.0539 (15)
C14	0.3857 (3)	0.0526 (7)	0.5447 (2)	0.0518 (14)
C15	0.3478 (3)	−0.0345 (5)	0.5765 (2)	0.0466 (12)
C16	0.1067 (3)	0.1293 (5)	0.8016 (2)	0.0397 (11)
C17	0.1221 (3)	0.0257 (5)	0.8431 (2)	0.0407 (11)
C18	0.1025 (3)	0.0177 (6)	0.9008 (2)	0.0509 (14)
C19	0.0642 (3)	0.1192 (7)	0.9203 (3)	0.0585 (16)
C20	0.0481 (3)	0.2240 (6)	0.8827 (3)	0.0580 (16)
C21	0.0682 (3)	0.2288 (5)	0.8251 (3)	0.0494 (13)
C22	0.2919 (3)	0.2302 (5)	0.8569 (2)	0.0437 (12)
C23	0.2681 (3)	0.3491 (5)	0.8300 (3)	0.0482 (13)
C24	0.2297 (3)	0.4386 (6)	0.8576 (3)	0.0610 (16)
C25	0.2111 (3)	0.4146 (7)	0.9136 (3)	0.0670 (18)
C26	0.2323 (3)	0.3008 (7)	0.9421 (3)	0.0618 (18)
C27	0.2722 (3)	0.2101 (6)	0.9146 (2)	0.0499 (13)
C28	0.3181 (4)	−0.1862 (6)	0.8824 (3)	0.0669 (17)
H28A	0.2684	−0.2165	0.8898	0.080*
H28B	0.3316	−0.1064	0.9047	0.080*
C29	0.3823 (5)	−0.2848 (9)	0.9025 (4)	0.103 (3)
H29A	0.4205	−0.2545	0.9387	0.123*
H29B	0.3600	−0.3642	0.9136	0.123*
C30	0.4210 (5)	−0.3060 (8)	0.8485 (3)	0.097 (3)
H30A	0.4670	−0.2521	0.8519	0.117*
H30B	0.4363	−0.3946	0.8460	0.117*
C31	0.3600 (4)	−0.2707 (7)	0.7949 (3)	0.077 (2)
H31A	0.3270	−0.3437	0.7799	0.093*
H31B	0.3831	−0.2399	0.7612	0.093*
F11	0.29054 (17)	0.1796 (3)	0.68553 (12)	0.0474 (7)
F12	0.3651 (2)	0.3433 (3)	0.62406 (16)	0.0712 (10)
F13	0.4288 (2)	0.2583 (4)	0.52848 (16)	0.0775 (11)
F14	0.4171 (2)	0.0078 (4)	0.49793 (17)	0.0827 (12)
F15	0.3460 (2)	−0.1572 (3)	0.55994 (16)	0.0681 (10)
F17	0.16267 (16)	−0.0759 (3)	0.82515 (13)	0.0473 (7)
F18	0.1222 (2)	−0.0855 (4)	0.93621 (15)	0.0728 (10)
F19	0.0450 (2)	0.1159 (4)	0.97605 (16)	0.0884 (13)
F20	0.0137 (2)	0.3270 (4)	0.90206 (16)	0.0765 (11)
F21	0.05249 (19)	0.3380 (3)	0.79252 (15)	0.0616 (9)
F23	0.28367 (18)	0.3790 (3)	0.77441 (15)	0.0585 (8)
F24	0.2080 (2)	0.5515 (4)	0.8286 (2)	0.0846 (12)
F25	0.1728 (2)	0.5006 (4)	0.9410 (2)	0.1028 (16)
F26	0.21367 (19)	0.2698 (5)	0.99720 (15)	0.0878 (13)
F27	0.29100 (18)	0.0969 (4)	0.94379 (14)	0.0640 (9)

Atomic displacement parameters (Ų)

	U^11	U^22	U^33	U^12	U^13	U^23
Sm1	0.02942 (13)	0.03382 (14)	0.03350 (14)	0.00116 (11)	0.00887 (9)	0.00208 (11)
Si1	0.0450 (8)	0.0370 (7)	0.0479 (8)	−0.0036 (6)	0.0122 (6)	−0.0064 (6)
Si2	0.0359 (7)	0.0403 (7)	0.0475 (8)	0.0035 (6)	0.0056 (6)	0.0071 (6)
Si3	0.0324 (7)	0.0507 (8)	0.0425 (7)	0.0001 (6)	0.0083 (6)	−0.0018 (6)
O1	0.051 (2)	0.049 (2)	0.051 (2)	0.0137 (17)	0.0090 (17)	0.0088 (17)
N1	0.036 (2)	0.035 (2)	0.037 (2)	−0.0013 (17)	0.0114 (17)	−0.0016 (17)
N2	0.032 (2)	0.042 (2)	0.039 (2)	0.0045 (18)	0.0103 (17)	0.0027 (18)
N3	0.033 (2)	0.043 (2)	0.038 (2)	0.0000 (18)	0.0109 (17)	−0.0022 (18)
C1	0.047 (3)	0.047 (3)	0.056 (3)	−0.007 (3)	0.012 (3)	0.001 (3)
C2	0.056 (3)	0.066 (4)	0.047 (3)	−0.013 (3)	0.011 (3)	−0.016 (3)
C3	0.073 (4)	0.046 (3)	0.086 (5)	0.004 (3)	0.024 (4)	−0.010 (3)
C4	0.068 (4)	0.046 (3)	0.079 (4)	0.002 (3)	0.009 (3)	0.011 (3)
C5	0.041 (3)	0.062 (4)	0.061 (4)	0.004 (3)	0.004 (3)	0.001 (3)
C6	0.056 (3)	0.068 (4)	0.047 (3)	0.012 (3)	0.006 (3)	0.011 (3)
C7	0.044 (3)	0.101 (5)	0.040 (3)	0.010 (3)	0.004 (2)	−0.002 (3)
C8	0.040 (3)	0.108 (5)	0.054 (3)	0.013 (3)	0.010 (3)	−0.012 (4)
C9	0.036 (3)	0.062 (4)	0.179 (8)	−0.008 (3)	0.024 (4)	0.020 (5)
C10	0.032 (2)	0.048 (3)	0.033 (2)	−0.001 (2)	0.0052 (18)	−0.002 (2)
C11	0.036 (3)	0.045 (3)	0.032 (2)	−0.001 (2)	0.008 (2)	0.004 (2)
C12	0.043 (3)	0.052 (3)	0.044 (3)	−0.007 (3)	0.003 (2)	0.008 (2)
C13	0.043 (3)	0.072 (4)	0.045 (3)	−0.016 (3)	0.005 (2)	0.015 (3)
C14	0.032 (3)	0.092 (4)	0.035 (3)	−0.002 (3)	0.013 (2)	−0.003 (3)
C15	0.039 (3)	0.053 (3)	0.049 (3)	0.002 (2)	0.012 (2)	−0.008 (3)
C16	0.027 (2)	0.047 (3)	0.045 (3)	−0.004 (2)	0.008 (2)	−0.002 (2)
C17	0.029 (2)	0.048 (3)	0.047 (3)	−0.007 (2)	0.010 (2)	−0.001 (2)
C18	0.040 (3)	0.070 (4)	0.043 (3)	−0.015 (3)	0.009 (2)	0.005 (3)
C19	0.049 (3)	0.085 (4)	0.046 (3)	−0.015 (3)	0.019 (3)	−0.014 (3)
C20	0.035 (3)	0.077 (4)	0.061 (4)	0.003 (3)	0.009 (3)	−0.028 (3)
C21	0.032 (3)	0.054 (3)	0.060 (3)	−0.003 (2)	0.005 (2)	−0.005 (3)
C22	0.030 (2)	0.056 (3)	0.044 (3)	−0.009 (2)	0.005 (2)	−0.008 (2)
C23	0.033 (3)	0.053 (3)	0.058 (3)	−0.005 (2)	0.008 (2)	−0.013 (3)
C24	0.041 (3)	0.056 (4)	0.084 (5)	0.002 (3)	0.009 (3)	−0.011 (3)
C25	0.040 (3)	0.079 (5)	0.081 (5)	0.002 (3)	0.012 (3)	−0.037 (4)
C26	0.033 (3)	0.109 (5)	0.044 (3)	−0.014 (3)	0.011 (2)	−0.028 (3)
C27	0.037 (3)	0.070 (4)	0.040 (3)	−0.009 (3)	0.004 (2)	−0.011 (3)
C28	0.079 (4)	0.071 (4)	0.046 (3)	0.016 (4)	0.002 (3)	0.017 (3)
C29	0.087 (5)	0.133 (7)	0.076 (5)	0.012 (5)	−0.008 (4)	0.037 (5)
C30	0.094 (6)	0.109 (6)	0.080 (5)	0.059 (5)	0.002 (4)	0.005 (5)
C31	0.083 (5)	0.074 (5)	0.073 (4)	0.027 (4)	0.011 (4)	0.003 (4)
F11	0.0637 (19)	0.0403 (16)	0.0415 (15)	−0.0056 (14)	0.0189 (14)	−0.0020 (13)
F12	0.091 (3)	0.051 (2)	0.073 (2)	−0.0200 (19)	0.0223 (19)	0.0110 (17)
F13	0.064 (2)	0.106 (3)	0.066 (2)	−0.025 (2)	0.0213 (18)	0.025 (2)
F14	0.066 (2)	0.130 (4)	0.064 (2)	−0.012 (2)	0.0396 (19)	−0.014 (2)
F15	0.067 (2)	0.071 (2)	0.075 (2)	−0.0028 (18)	0.0354 (18)	−0.0224 (19)
F17	0.0515 (18)	0.0441 (16)	0.0513 (17)	0.0030 (14)	0.0221 (14)	0.0107 (14)
F18	0.088 (3)	0.082 (3)	0.053 (2)	−0.010 (2)	0.0253 (18)	0.0175 (19)
F19	0.090 (3)	0.128 (4)	0.059 (2)	−0.019 (3)	0.042 (2)	−0.018 (2)
F20	0.064 (2)	0.094 (3)	0.075 (2)	0.012 (2)	0.0208 (18)	−0.035 (2)
F21	0.061 (2)	0.0525 (19)	0.069 (2)	0.0169 (16)	0.0099 (16)	−0.0093 (17)
F23	0.0566 (19)	0.0543 (19)	0.066 (2)	0.0047 (16)	0.0160 (16)	0.0056 (16)
F24	0.063 (2)	0.059 (2)	0.129 (3)	0.0154 (19)	0.015 (2)	−0.013 (2)
F25	0.063 (2)	0.133 (4)	0.112 (3)	0.018 (2)	0.019 (2)	−0.070 (3)
F26	0.053 (2)	0.166 (4)	0.0476 (19)	−0.011 (2)	0.0183 (16)	−0.032 (2)
F27	0.0529 (19)	0.095 (3)	0.0438 (17)	−0.0060 (19)	0.0109 (14)	0.0067 (18)

Geometric parameters (Å, º)

Sm1—N3	2.299 (4)	C9—H9A	0.9600
Sm1—N2	2.338 (4)	C9—H9B	0.9600
Sm1—N1	2.365 (4)	C9—H9C	0.9600
Sm1—O1	2.446 (3)	C10—C11	1.391 (7)
Sm1—F11	2.536 (3)	C10—C15	1.402 (7)
Sm1—F17	2.555 (3)	C11—C12	1.361 (7)
Sm1—Si1	3.4678 (15)	C11—F11	1.371 (5)
Si1—N1	1.744 (4)	C12—F12	1.332 (6)
Si1—C2	1.858 (5)	C12—C13	1.366 (8)
Si1—C3	1.876 (6)	C13—F13	1.349 (6)
Si1—C1	1.884 (5)	C13—C14	1.351 (8)
Si2—N2	1.757 (4)	C14—F14	1.351 (6)
Si2—C6	1.854 (6)	C14—C15	1.398 (8)
Si2—C5	1.863 (5)	C15—F15	1.333 (6)
Si2—C4	1.862 (6)	C16—C21	1.397 (7)
Si3—N3	1.732 (4)	C16—C17	1.404 (7)
Si3—C9	1.855 (6)	C17—F17	1.382 (6)
Si3—C8	1.864 (6)	C17—C18	1.384 (7)
Si3—C7	1.865 (5)	C18—F18	1.331 (6)
O1—C31	1.457 (7)	C18—C19	1.372 (8)
O1—C28	1.459 (6)	C19—F19	1.338 (6)
N1—C10	1.382 (6)	C19—C20	1.363 (9)
N2—C16	1.388 (6)	C20—F20	1.347 (6)
N3—C22	1.401 (6)	C20—C21	1.386 (8)
C1—H1A	0.9600	C21—F21	1.344 (6)
C1—H1B	0.9600	C22—C27	1.398 (7)
C1—H1C	0.9600	C22—C23	1.400 (8)
C2—H2A	0.9600	C23—F23	1.344 (6)
C2—H2B	0.9600	C23—C24	1.369 (8)
C2—H2C	0.9600	C24—F24	1.356 (7)
C3—H3A	0.9600	C24—C25	1.361 (9)
C3—H3B	0.9600	C25—F25	1.339 (7)
C3—H3C	0.9600	C25—C26	1.358 (9)
C4—H4A	0.9600	C26—F26	1.359 (7)
C4—H4B	0.9600	C26—C27	1.391 (8)
C4—H4C	0.9600	C27—F27	1.353 (7)
C5—H5A	0.9600	C28—C29	1.515 (9)
C5—H5B	0.9600	C28—H28A	0.9700
C5—H5C	0.9600	C28—H28B	0.9700
C6—H6A	0.9600	C29—C30	1.506 (10)
C6—H6B	0.9600	C29—H29A	0.9700
C6—H6C	0.9600	C29—H29B	0.9700
C7—H7A	0.9600	C30—C31	1.449 (9)
C7—H7B	0.9600	C30—H30A	0.9700
C7—H7C	0.9600	C30—H30B	0.9700
C8—H8A	0.9600	C31—H31A	0.9700
C8—H8B	0.9600	C31—H31B	0.9700
C8—H8C	0.9600
N3—Sm1—N2	97.60 (13)	H7A—C7—H7C	109.5
N3—Sm1—N1	127.35 (13)	H7B—C7—H7C	109.5
N2—Sm1—N1	117.50 (13)	Si3—C8—H8A	109.5
N3—Sm1—O1	86.14 (14)	Si3—C8—H8B	109.5
N2—Sm1—O1	137.14 (13)	H8A—C8—H8B	109.5
N1—Sm1—O1	91.92 (13)	Si3—C8—H8C	109.5
N3—Sm1—F11	78.32 (12)	H8A—C8—H8C	109.5
N2—Sm1—F11	86.95 (11)	H8B—C8—H8C	109.5
N1—Sm1—F11	66.67 (11)	Si3—C9—H9A	109.5
O1—Sm1—F11	135.12 (11)	Si3—C9—H9B	109.5
N3—Sm1—F17	97.73 (11)	H9A—C9—H9B	109.5
N2—Sm1—F17	67.23 (11)	Si3—C9—H9C	109.5
N1—Sm1—F17	130.69 (12)	H9A—C9—H9C	109.5
O1—Sm1—F17	69.96 (11)	H9B—C9—H9C	109.5
F11—Sm1—F17	153.29 (9)	N1—C10—C11	120.4 (4)
N3—Sm1—Si1	150.04 (10)	N1—C10—C15	126.9 (5)
N2—Sm1—Si1	110.00 (10)	C11—C10—C15	112.7 (4)
N1—Sm1—Si1	27.28 (9)	C12—C11—F11	117.1 (4)
O1—Sm1—Si1	81.54 (9)	C12—C11—C10	126.7 (5)
F11—Sm1—Si1	91.40 (7)	F11—C11—C10	116.2 (4)
F17—Sm1—Si1	103.43 (7)	F12—C12—C13	120.0 (5)
N1—Si1—C2	113.2 (2)	F12—C12—C11	121.7 (5)
N1—Si1—C3	116.8 (2)	C13—C12—C11	118.3 (5)
C2—Si1—C3	107.5 (3)	F13—C13—C14	119.6 (5)
N1—Si1—C1	102.8 (2)	F13—C13—C12	121.1 (6)
C2—Si1—C1	108.8 (2)	C14—C13—C12	119.2 (5)
C3—Si1—C1	107.4 (3)	F14—C14—C13	120.4 (5)
N1—Si1—Sm1	38.44 (12)	F14—C14—C15	117.9 (6)
C2—Si1—Sm1	127.6 (2)	C13—C14—C15	121.6 (5)
C3—Si1—Sm1	124.5 (2)	F15—C15—C14	118.6 (5)
C1—Si1—Sm1	64.50 (17)	F15—C15—C10	119.9 (5)
N2—Si2—C6	106.8 (2)	C14—C15—C10	121.5 (5)
N2—Si2—C5	110.0 (2)	N2—C16—C21	127.9 (5)
C6—Si2—C5	107.0 (3)	N2—C16—C17	119.9 (4)
N2—Si2—C4	114.6 (2)	C21—C16—C17	112.1 (4)
C6—Si2—C4	106.4 (3)	F17—C17—C18	117.4 (5)
C5—Si2—C4	111.6 (3)	F17—C17—C16	116.6 (4)
N3—Si3—C9	111.3 (2)	C18—C17—C16	126.0 (5)
N3—Si3—C8	107.6 (2)	F18—C18—C19	121.8 (5)
C9—Si3—C8	109.3 (3)	F18—C18—C17	119.9 (5)
N3—Si3—C7	113.8 (2)	C19—C18—C17	118.3 (5)
C9—Si3—C7	107.0 (3)	F19—C19—C20	120.9 (6)
C8—Si3—C7	107.7 (3)	F19—C19—C18	120.1 (6)
C31—O1—C28	108.9 (4)	C20—C19—C18	119.0 (5)
C31—O1—Sm1	127.3 (3)	F20—C20—C19	120.1 (5)
C28—O1—Sm1	123.6 (3)	F20—C20—C21	118.6 (6)
C10—N1—Si1	125.2 (3)	C19—C20—C21	121.3 (5)
C10—N1—Sm1	118.9 (3)	F21—C21—C20	116.9 (5)
Si1—N1—Sm1	114.28 (18)	F21—C21—C16	119.7 (5)
C16—N2—Si2	120.6 (3)	C20—C21—C16	123.3 (5)
C16—N2—Sm1	113.0 (3)	C27—C22—C23	113.9 (5)
Si2—N2—Sm1	126.32 (19)	C27—C22—N3	123.4 (5)
C22—N3—Si3	117.4 (3)	C23—C22—N3	122.6 (5)
C22—N3—Sm1	116.8 (3)	F23—C23—C24	117.3 (5)
Si3—N3—Sm1	125.0 (2)	F23—C23—C22	119.2 (5)
Si1—C1—H1A	109.5	C24—C23—C22	123.4 (6)
Si1—C1—H1B	109.5	F24—C24—C25	119.2 (6)
H1A—C1—H1B	109.5	F24—C24—C23	120.1 (6)
Si1—C1—H1C	109.5	C25—C24—C23	120.7 (6)
H1A—C1—H1C	109.5	F25—C25—C26	119.7 (7)
H1B—C1—H1C	109.5	F25—C25—C24	121.5 (7)
Si1—C2—H2A	109.5	C26—C25—C24	118.8 (6)
Si1—C2—H2B	109.5	C25—C26—F26	121.6 (6)
H2A—C2—H2B	109.5	C25—C26—C27	120.7 (6)
Si1—C2—H2C	109.5	F26—C26—C27	117.6 (7)
H2A—C2—H2C	109.5	F27—C27—C26	119.0 (5)
H2B—C2—H2C	109.5	F27—C27—C22	118.6 (5)
Si1—C3—H3A	109.5	C26—C27—C22	122.4 (6)
Si1—C3—H3B	109.5	O1—C28—C29	103.9 (5)
H3A—C3—H3B	109.5	O1—C28—H28A	111.0
Si1—C3—H3C	109.5	C29—C28—H28A	111.0
H3A—C3—H3C	109.5	O1—C28—H28B	111.0
H3B—C3—H3C	109.5	C29—C28—H28B	111.0
Si2—C4—H4A	109.5	H28A—C28—H28B	109.0
Si2—C4—H4B	109.5	C30—C29—C28	107.6 (6)
H4A—C4—H4B	109.5	C30—C29—H29A	110.2
Si2—C4—H4C	109.5	C28—C29—H29A	110.2
H4A—C4—H4C	109.5	C30—C29—H29B	110.2
H4B—C4—H4C	109.5	C28—C29—H29B	110.2
Si2—C5—H5A	109.5	H29A—C29—H29B	108.5
Si2—C5—H5B	109.5	C31—C30—C29	103.0 (6)
H5A—C5—H5B	109.5	C31—C30—H30A	111.2
Si2—C5—H5C	109.5	C29—C30—H30A	111.2
H5A—C5—H5C	109.5	C31—C30—H30B	111.2
H5B—C5—H5C	109.5	C29—C30—H30B	111.2
Si2—C6—H6A	109.5	H30A—C30—H30B	109.1
Si2—C6—H6B	109.5	C30—C31—O1	106.7 (6)
H6A—C6—H6B	109.5	C30—C31—H31A	110.4
Si2—C6—H6C	109.5	O1—C31—H31A	110.4
H6A—C6—H6C	109.5	C30—C31—H31B	110.4
H6B—C6—H6C	109.5	O1—C31—H31B	110.4
Si3—C7—H7A	109.5	H31A—C31—H31B	108.6
Si3—C7—H7B	109.5	C11—F11—Sm1	115.3 (3)
H7A—C7—H7B	109.5	C17—F17—Sm1	108.0 (2)
Si3—C7—H7C	109.5