A chelate-stabilized tungsten-bis­(imido) complex

The title compound, [N,N'-bis­(tri­methyl­silyl)-6,6'-di­methyl­bipheny]-2,2'-di­amido]­bis(2,6-diiso­propyl­phenyl­imido)­tung­sten(VI), [W(C₁₂H₁₇N)₂(C₂₀H₃₀N₂Si₂)], has been synthesized and its crystal structure determined. The geometry around the W atom, imposed by the bi­phenyl­di­amido and bulky 2,6-diiso­propyl­phenyl­imido ligands, is that of a tetrahedron. As a result of this geometry, the bi­phenyl group is twisted, with a dihedral angle of 69.65 (8)°. Principal distances include W-N(imido) 1.762 (2) and 1.772 (2) Å, and W-N(amido) 1.976 (2) and 1.984 (2) Å.

Key indicators

• Single-crystal X-ray study
• T = 173 K
• Mean [sigma](C-C) = 0.004 Å
• R factor = 0.022
• wR factor = 0.047
• Data-to-parameter ratio = 21.0

checkCIF results

No syntax errors found

ADDSYM reports no extra symmetry

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Computing details

Data collection: SMART (Bruker, 1998); cell refinement: SMART and SAINT (Bruker, 1998); data reduction: SHELXTL (Bruker, 1998); program(s) used to solve structure: SHELXTL; program(s) used to refine structure: SHELXTL; molecular graphics: SHELXTL; software used to prepare material for publication: SHELXTL.

(I)

Crystal data

[W(C12H17N)2(C20H30N2Si2)]	F(000) = 1832
Mr = 889.02	Dx = 1.350 Mg m^−3
Monoclinic, P21/c	Mo Kα radiation, λ = 0.71073 Å
a = 17.480 (2) Å	Cell parameters from 268 reflections
b = 11.443 (2) Å	θ = 2.0–27.5°
c = 21.889 (3) Å	µ = 2.73 mm^−1
β = 91.95 (2)°	T = 173 K
V = 4376 (1) Å^3	Needles, yellow
Z = 4	0.23 × 0.11 × 0.08 mm

Data collection

SMART CCD area-detector diffractometer	10022 independent reflections
Radiation source: normal-focus sealed tube	8026 reflections with I > 2σ(I)
Graphite monochromator	Rint = 0.035
ω scans	θmax = 27.5°, θmin = 1.9°
Absorption correction: integration based on measured indexed crystal faces (SHELXTL; Bruker, 1998)	h = −22→22
Tmin = 0.480, Tmax = 0.829	k = −14→14
29255 measured reflections	l = −21→28

Refinement

Refinement on F^2	Secondary atom site location: difference Fourier map
Least-squares matrix: full	Hydrogen site location: inferred from neighbouring sites
R[F^2 > 2σ(F^2)] = 0.022	H atoms treated by a mixture of independent and constrained refinement
wR(F^2) = 0.047	w = 1/[σ^2(Fo^2) + (0.016P)^2 + 1.0307P] where P = (Fo^2 + 2Fc^2)/3
S = 1.00	(Δ/σ)max = 0.003
10022 reflections	Δρmax = 0.62 e Å^−3
477 parameters	Δρmin = −0.54 e Å^−3
0 restraints	Extinction correction: SHELXL97, Fc^*=kFc[1+0.001xFc^2λ^3/sin(2θ)]^-1/4
Primary atom site location: structure-invariant direct methods	Extinction coefficient: 0.00010 (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.

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

	x	y	z	Uiso*/Ueq
W	0.242359 (5)	0.213596 (8)	0.121051 (4)	0.02100 (3)
Si1	0.34213 (4)	0.07492 (7)	0.23766 (3)	0.03080 (16)
Si2	0.05731 (4)	0.23375 (7)	0.06547 (3)	0.03157 (16)
N1	0.26267 (10)	0.14596 (17)	0.20305 (8)	0.0238 (4)
N2	0.13814 (10)	0.16028 (18)	0.09551 (9)	0.0258 (4)
N3	0.24042 (11)	0.36752 (18)	0.12039 (9)	0.0256 (4)
N4	0.31732 (10)	0.16471 (18)	0.07494 (9)	0.0259 (4)
C1	0.19477 (13)	0.1618 (2)	0.23755 (10)	0.0234 (5)
C2	0.12825 (13)	0.0951 (2)	0.22292 (11)	0.0243 (5)
C3	0.12946 (12)	0.0047 (2)	0.17353 (12)	0.0269 (5)
C4	0.13361 (12)	0.0381 (2)	0.11182 (12)	0.0270 (5)
C5	0.19429 (14)	0.2427 (2)	0.28523 (11)	0.0306 (6)
H5A	0.2388	0.2876	0.2949	0.037*
C6	0.12921 (15)	0.2578 (2)	0.31842 (12)	0.0386 (7)
H6A	0.1292	0.3125	0.3511	0.046*
C7	0.06435 (15)	0.1937 (2)	0.30429 (12)	0.0376 (7)
H7A	0.0199	0.2054	0.3273	0.045*
C8	0.06240 (13)	0.1121 (2)	0.25697 (11)	0.0295 (5)
C9	−0.01099 (14)	0.0452 (3)	0.24449 (13)	0.0396 (7)
H9A	−0.0216	−0.0043	0.2798	0.059*
H9B	−0.0057	−0.0039	0.2082	0.059*
H9C	−0.0533	0.1003	0.2374	0.059*
C10	0.12011 (18)	−0.1568 (3)	0.25357 (14)	0.0468 (7)
H10A	0.0670	−0.1791	0.2605	0.070*
H10B	0.1355	−0.0940	0.2819	0.070*
H10C	0.1535	−0.2246	0.2605	0.070*
C11	0.12686 (14)	−0.1148 (2)	0.18873 (13)	0.0343 (6)
C12	0.13003 (15)	−0.1970 (2)	0.14176 (15)	0.0414 (7)
H12A	0.1304	−0.2778	0.1517	0.050*
C13	0.13261 (14)	−0.1642 (3)	0.08168 (15)	0.0426 (7)
H13A	0.1336	−0.2221	0.0506	0.051*
C14	0.13384 (14)	−0.0470 (2)	0.06624 (13)	0.0362 (6)
H14A	0.1348	−0.0245	0.0245	0.043*
C15	0.39711 (15)	−0.0022 (2)	0.17859 (13)	0.0382 (6)
H15A	0.3627	−0.0538	0.1548	0.057*
H15B	0.4378	−0.0488	0.1985	0.057*
H15C	0.4198	0.0552	0.1514	0.057*
C16	0.40379 (17)	0.1812 (3)	0.28036 (15)	0.0542 (9)
H16A	0.4184	0.2444	0.2529	0.081*
H16B	0.4499	0.1415	0.2964	0.081*
H16C	0.3756	0.2138	0.3144	0.081*
C17	0.30563 (18)	−0.0369 (3)	0.29123 (14)	0.0534 (9)
H17A	0.2680	−0.0010	0.3176	0.080*
H17B	0.3483	−0.0679	0.3165	0.080*
H17C	0.2814	−0.1007	0.2678	0.080*
C18	0.05789 (15)	0.2421 (3)	−0.01960 (12)	0.0382 (7)
H18A	0.1063	0.2763	−0.0321	0.057*
H18B	0.0152	0.2909	−0.0346	0.057*
H18C	0.0525	0.1633	−0.0368	0.057*
C19	−0.03001 (15)	0.1514 (3)	0.08653 (14)	0.0517 (8)
H19A	−0.0258	0.0701	0.0728	0.077*
H19B	−0.0753	0.1875	0.0668	0.077*
H19C	−0.0348	0.1531	0.1310	0.077*
C20	0.05341 (17)	0.3827 (3)	0.09911 (15)	0.0518 (8)
H20A	0.0563	0.3770	0.1438	0.078*
H20B	0.0053	0.4206	0.0861	0.078*
H20C	0.0966	0.4290	0.0851	0.078*
C21	0.26532 (13)	0.4816 (2)	0.10875 (12)	0.0272 (5)
C22	0.29862 (13)	0.5492 (2)	0.15720 (12)	0.0297 (5)
C23	0.32310 (15)	0.6613 (2)	0.14487 (13)	0.0379 (6)
H23A	0.3449	0.7076	0.1770	0.045*
C24	0.31638 (16)	0.7075 (2)	0.08637 (14)	0.0420 (7)
H24A	0.3337	0.7846	0.0787	0.050*
C25	0.28472 (15)	0.6418 (2)	0.03953 (13)	0.0392 (6)
H25A	0.2805	0.6744	−0.0004	0.047*
C26	0.25864 (14)	0.5283 (2)	0.04907 (12)	0.0315 (6)
C27	0.30473 (14)	0.4994 (2)	0.22135 (12)	0.0332 (6)
H27A	0.2995	0.4126	0.2180	0.040*
C28	0.23899 (18)	0.5437 (3)	0.25840 (15)	0.0581 (9)
H28A	0.2427	0.6288	0.2626	0.087*
H28B	0.2415	0.5076	0.2990	0.087*
H28C	0.1903	0.5234	0.2375	0.087*
C29	0.38150 (18)	0.5250 (3)	0.25397 (15)	0.0604 (9)
H29A	0.4232	0.4982	0.2286	0.091*
H29B	0.3842	0.4839	0.2933	0.091*
H29C	0.3865	0.6093	0.2610	0.091*
C30	0.22640 (16)	0.4585 (2)	−0.00511 (13)	0.0390 (7)
H30A	0.2015	0.3869	0.0113	0.047*
C31	0.16538 (19)	0.5264 (3)	−0.04243 (16)	0.0566 (9)
H31A	0.1249	0.5517	−0.0155	0.085*
H31B	0.1434	0.4759	−0.0746	0.085*
H31C	0.1888	0.5950	−0.0610	0.085*
C32	0.2900 (2)	0.4189 (3)	−0.04610 (14)	0.0534 (8)
H32A	0.3158	0.4875	−0.0627	0.080*
H32B	0.2682	0.3719	−0.0798	0.080*
H32C	0.3271	0.3718	−0.0222	0.080*
C33	0.37699 (13)	0.1632 (2)	0.03416 (11)	0.0262 (5)
C34	0.44129 (13)	0.2368 (2)	0.04298 (12)	0.0307 (6)
C35	0.49735 (14)	0.2346 (3)	−0.00107 (13)	0.0393 (7)
H35A	0.5405	0.2846	0.0035	0.047*
C36	0.49119 (15)	0.1612 (3)	−0.05101 (13)	0.0456 (7)
H36A	0.5298	0.1613	−0.0805	0.055*
C37	0.42892 (15)	0.0875 (3)	−0.05817 (13)	0.0415 (7)
H37A	0.4260	0.0361	−0.0922	0.050*
C38	0.37072 (13)	0.0869 (2)	−0.01683 (11)	0.0289 (5)
C39	0.45264 (14)	0.3165 (2)	0.09811 (12)	0.0360 (6)
H39A	0.4053	0.3128	0.1224	0.043*
C40	0.46532 (17)	0.4440 (3)	0.07982 (15)	0.0497 (8)
H40A	0.5127	0.4503	0.0574	0.075*
H40B	0.4693	0.4926	0.1166	0.075*
H40C	0.4221	0.4707	0.0538	0.075*
C41	0.52007 (17)	0.2749 (3)	0.13924 (14)	0.0500 (8)
H41A	0.5125	0.1928	0.1502	0.075*
H41B	0.5231	0.3225	0.1765	0.075*
H41C	0.5678	0.2828	0.1173	0.075*
C42	0.29956 (14)	0.0136 (2)	−0.02716 (11)	0.0307 (6)
H42A	0.2794	−0.0066	0.0137	0.037*
C43	0.23859 (15)	0.0864 (2)	−0.06168 (13)	0.0391 (6)
H43A	0.2254	0.1545	−0.0370	0.059*
H43B	0.1928	0.0386	−0.0695	0.059*
H43C	0.2586	0.1127	−0.1006	0.059*
C44	0.31307 (17)	−0.1003 (2)	−0.06154 (13)	0.0421 (7)
H44A	0.3299	−0.0825	−0.1028	0.063*
H44B	0.2654	−0.1453	−0.0643	0.063*
H44C	0.3526	−0.1461	−0.0396	0.063*

Atomic displacement parameters (Ų)

	U^11	U^22	U^33	U^12	U^13	U^23
W	0.01893 (4)	0.02514 (5)	0.01897 (5)	−0.00132 (5)	0.00112 (3)	−0.00114 (5)
Si1	0.0266 (3)	0.0400 (4)	0.0256 (4)	0.0082 (3)	−0.0016 (3)	−0.0017 (3)
Si2	0.0224 (3)	0.0432 (4)	0.0290 (4)	0.0002 (3)	−0.0010 (3)	−0.0008 (3)
N1	0.0214 (9)	0.0285 (11)	0.0217 (10)	0.0013 (8)	0.0030 (8)	−0.0021 (8)
N2	0.0212 (9)	0.0307 (11)	0.0256 (11)	−0.0028 (9)	0.0010 (8)	−0.0016 (9)
N3	0.0203 (8)	0.0302 (10)	0.0263 (10)	0.0015 (9)	−0.0017 (8)	0.0023 (10)
N4	0.0229 (9)	0.0323 (11)	0.0225 (10)	−0.0007 (9)	−0.0004 (8)	−0.0002 (9)
C1	0.0245 (11)	0.0250 (12)	0.0208 (12)	0.0013 (10)	0.0033 (9)	0.0021 (10)
C2	0.0240 (11)	0.0263 (12)	0.0227 (12)	0.0020 (10)	0.0018 (10)	0.0044 (10)
C3	0.0187 (10)	0.0274 (13)	0.0348 (14)	−0.0014 (10)	0.0022 (10)	−0.0019 (11)
C4	0.0177 (10)	0.0296 (13)	0.0336 (14)	−0.0037 (10)	0.0020 (10)	−0.0061 (11)
C5	0.0314 (12)	0.0348 (14)	0.0258 (13)	0.0022 (11)	0.0026 (10)	−0.0020 (10)
C6	0.0412 (14)	0.0472 (17)	0.0277 (14)	0.0065 (13)	0.0063 (12)	−0.0099 (12)
C7	0.0320 (13)	0.0522 (18)	0.0292 (14)	0.0068 (13)	0.0108 (11)	−0.0007 (12)
C8	0.0255 (11)	0.0345 (14)	0.0285 (13)	0.0015 (11)	0.0035 (10)	0.0065 (11)
C9	0.0282 (13)	0.0496 (18)	0.0416 (17)	−0.0031 (12)	0.0100 (12)	0.0099 (13)
C10	0.0538 (18)	0.0313 (15)	0.055 (2)	0.0005 (14)	−0.0030 (15)	0.0123 (14)
C11	0.0248 (12)	0.0300 (14)	0.0480 (17)	0.0002 (11)	0.0009 (12)	0.0030 (12)
C12	0.0297 (13)	0.0289 (15)	0.066 (2)	−0.0002 (11)	0.0034 (14)	−0.0080 (14)
C13	0.0272 (13)	0.0390 (16)	0.062 (2)	−0.0049 (12)	0.0070 (13)	−0.0241 (15)
C14	0.0260 (12)	0.0468 (17)	0.0361 (15)	−0.0088 (12)	0.0053 (11)	−0.0135 (13)
C15	0.0325 (13)	0.0421 (16)	0.0401 (16)	0.0088 (12)	0.0013 (12)	−0.0041 (13)
C16	0.0376 (15)	0.071 (2)	0.053 (2)	0.0079 (15)	−0.0142 (15)	−0.0209 (17)
C17	0.0501 (17)	0.067 (2)	0.0433 (19)	0.0213 (16)	0.0051 (15)	0.0208 (16)
C18	0.0319 (12)	0.0498 (18)	0.0327 (14)	−0.0032 (12)	−0.0045 (11)	0.0021 (12)
C19	0.0256 (13)	0.078 (2)	0.0511 (19)	−0.0015 (15)	0.0017 (13)	0.0151 (17)
C20	0.0419 (16)	0.055 (2)	0.058 (2)	0.0161 (15)	−0.0054 (15)	−0.0139 (16)
C21	0.0225 (11)	0.0280 (13)	0.0312 (14)	0.0021 (10)	0.0021 (10)	0.0020 (10)
C22	0.0249 (11)	0.0297 (13)	0.0344 (14)	−0.0004 (11)	0.0010 (11)	−0.0028 (11)
C23	0.0358 (14)	0.0331 (15)	0.0446 (17)	−0.0075 (12)	−0.0004 (13)	−0.0062 (13)
C24	0.0403 (14)	0.0287 (14)	0.0570 (19)	−0.0084 (13)	0.0032 (14)	0.0035 (14)
C25	0.0393 (14)	0.0352 (15)	0.0430 (17)	−0.0047 (13)	0.0003 (13)	0.0091 (13)
C26	0.0279 (12)	0.0320 (14)	0.0346 (15)	−0.0015 (11)	−0.0003 (11)	0.0023 (11)
C27	0.0346 (13)	0.0321 (14)	0.0326 (15)	−0.0004 (11)	−0.0026 (12)	−0.0066 (11)
C28	0.0587 (19)	0.068 (2)	0.049 (2)	0.0193 (18)	0.0166 (16)	0.0103 (17)
C29	0.0510 (18)	0.084 (3)	0.045 (2)	−0.0069 (18)	−0.0142 (16)	−0.0018 (18)
C30	0.0496 (16)	0.0350 (15)	0.0321 (15)	−0.0082 (13)	−0.0051 (13)	0.0073 (12)
C31	0.058 (2)	0.059 (2)	0.052 (2)	−0.0016 (17)	−0.0180 (17)	0.0096 (17)
C32	0.075 (2)	0.0503 (19)	0.0343 (17)	0.0027 (17)	−0.0029 (16)	−0.0020 (14)
C33	0.0226 (11)	0.0337 (13)	0.0223 (12)	0.0032 (10)	0.0012 (10)	0.0022 (10)
C34	0.0247 (11)	0.0383 (15)	0.0290 (13)	0.0028 (11)	0.0019 (10)	−0.0007 (11)
C35	0.0251 (11)	0.0539 (18)	0.0391 (15)	−0.0042 (12)	0.0066 (11)	−0.0042 (13)
C36	0.0315 (13)	0.072 (2)	0.0341 (16)	−0.0029 (14)	0.0141 (12)	−0.0045 (15)
C37	0.0344 (13)	0.0608 (19)	0.0296 (15)	0.0002 (14)	0.0063 (12)	−0.0129 (13)
C38	0.0280 (12)	0.0351 (14)	0.0235 (13)	0.0033 (11)	0.0020 (10)	0.0004 (11)
C39	0.0252 (12)	0.0460 (17)	0.0371 (15)	−0.0050 (11)	0.0063 (11)	−0.0098 (12)
C40	0.0430 (16)	0.0473 (19)	0.059 (2)	−0.0044 (14)	0.0092 (15)	−0.0080 (15)
C41	0.0441 (15)	0.063 (2)	0.0427 (17)	−0.0107 (16)	−0.0072 (14)	−0.0094 (16)
C42	0.0333 (13)	0.0373 (15)	0.0216 (13)	−0.0015 (11)	0.0018 (11)	−0.0014 (11)
C43	0.0358 (14)	0.0403 (16)	0.0409 (17)	0.0029 (13)	−0.0048 (13)	−0.0023 (13)
C44	0.0505 (16)	0.0373 (16)	0.0384 (16)	0.0010 (13)	0.0005 (14)	−0.0008 (13)

Geometric parameters (Å, º)

W—N3	1.762 (2)	C20—H20C	0.9800
W—N4	1.7716 (19)	C21—C26	1.412 (4)
W—N1	1.9757 (19)	C21—C22	1.421 (3)
W—N2	1.9835 (18)	C22—C23	1.382 (4)
Si1—N1	1.7585 (19)	C22—C27	1.516 (4)
Si1—C16	1.856 (3)	C23—C24	1.386 (4)
Si1—C15	1.860 (3)	C23—H23A	0.9500
Si1—C17	1.863 (3)	C24—C25	1.373 (4)
Si2—N2	1.753 (2)	C24—H24A	0.9500
Si2—C20	1.859 (3)	C25—C26	1.394 (4)
Si2—C18	1.865 (3)	C25—H25A	0.9500
Si2—C19	1.865 (3)	C26—C30	1.522 (4)
N1—C1	1.440 (3)	C27—C28	1.516 (4)
N2—C4	1.445 (3)	C27—C29	1.527 (4)
N3—C21	1.402 (3)	C27—H27A	1.0000
N4—C33	1.396 (3)	C28—H28A	0.9800
C1—C5	1.395 (3)	C28—H28B	0.9800
C1—C2	1.418 (3)	C28—H28C	0.9800
C2—C8	1.406 (3)	C29—H29A	0.9800
C2—C3	1.497 (3)	C29—H29B	0.9800
C3—C4	1.408 (3)	C29—H29C	0.9800
C3—C11	1.408 (3)	C30—C32	1.522 (4)
C4—C14	1.395 (3)	C30—C31	1.533 (4)
C5—C6	1.381 (4)	C30—H30A	1.0000
C5—H5A	0.9500	C31—H31A	0.9800
C6—C7	1.377 (4)	C31—H31B	0.9800
C6—H6A	0.9500	C31—H31C	0.9800
C7—C8	1.394 (4)	C32—H32A	0.9800
C7—H7A	0.9500	C32—H32B	0.9800
C8—C9	1.511 (3)	C32—H32C	0.9800
C9—H9A	0.9800	C33—C34	1.412 (3)
C9—H9B	0.9800	C33—C38	1.418 (3)
C9—H9C	0.9800	C34—C35	1.398 (4)
C10—C11	1.507 (4)	C34—C39	1.520 (4)
C10—H10A	0.9800	C35—C36	1.380 (4)
C10—H10B	0.9800	C35—H35A	0.9500
C10—H10C	0.9800	C36—C37	1.381 (4)
C11—C12	1.396 (4)	C36—H36A	0.9500
C12—C13	1.370 (4)	C37—C38	1.384 (3)
C12—H12A	0.9500	C37—H37A	0.9500
C13—C14	1.383 (4)	C38—C42	1.511 (3)
C13—H13A	0.9500	C39—C40	1.531 (4)
C14—H14A	0.9500	C39—C41	1.535 (4)
C15—H15A	0.9800	C39—H39A	1.0000
C15—H15B	0.9800	C40—H40A	0.9800
C15—H15C	0.9800	C40—H40B	0.9800
C16—H16A	0.9800	C40—H40C	0.9800
C16—H16B	0.9800	C41—H41A	0.9800
C16—H16C	0.9800	C41—H41B	0.9800
C17—H17A	0.9800	C41—H41C	0.9800
C17—H17B	0.9800	C42—C44	1.528 (4)
C17—H17C	0.9800	C42—C43	1.531 (3)
C18—H18A	0.9800	C42—H42A	1.0000
C18—H18B	0.9800	C43—H43A	0.9800
C18—H18C	0.9800	C43—H43B	0.9800
C19—H19A	0.9800	C43—H43C	0.9800
C19—H19B	0.9800	C44—H44A	0.9800
C19—H19C	0.9800	C44—H44B	0.9800
C20—H20A	0.9800	C44—H44C	0.9800
C20—H20B	0.9800
N3—W—N4	108.99 (9)	H20B—C20—H20C	109.5
N3—W—N1	113.69 (9)	N3—C21—C26	120.3 (2)
N4—W—N1	106.28 (8)	N3—C21—C22	119.5 (2)
N3—W—N2	106.74 (8)	C26—C21—C22	120.2 (2)
N4—W—N2	115.62 (8)	C23—C22—C21	118.8 (2)
N1—W—N2	105.69 (8)	C23—C22—C27	121.1 (2)
N1—Si1—C16	110.53 (12)	C21—C22—C27	120.1 (2)
N1—Si1—C15	109.84 (11)	C22—C23—C24	121.1 (3)
C16—Si1—C15	110.86 (14)	C22—C23—H23A	119.4
N1—Si1—C17	107.83 (12)	C24—C23—H23A	119.4
C16—Si1—C17	109.79 (16)	C25—C24—C23	120.0 (3)
C15—Si1—C17	107.91 (14)	C25—C24—H24A	120.0
N2—Si2—C20	109.34 (12)	C23—C24—H24A	120.0
N2—Si2—C18	111.55 (11)	C24—C25—C26	121.6 (3)
C20—Si2—C18	110.51 (14)	C24—C25—H25A	119.2
N2—Si2—C19	108.71 (12)	C26—C25—H25A	119.2
C20—Si2—C19	108.92 (16)	C25—C26—C21	118.3 (2)
C18—Si2—C19	107.74 (13)	C25—C26—C30	119.1 (2)
C1—N1—Si1	119.05 (15)	C21—C26—C30	122.6 (2)
C1—N1—W	107.53 (14)	C22—C27—C28	109.8 (2)
Si1—N1—W	133.42 (10)	C22—C27—C29	113.2 (2)
C4—N2—Si2	120.42 (15)	C28—C27—C29	110.9 (3)
C4—N2—W	106.58 (14)	C22—C27—H27A	107.6
Si2—N2—W	132.77 (12)	C28—C27—H27A	107.6
C21—N3—W	157.86 (18)	C29—C27—H27A	107.6
C33—N4—W	162.09 (18)	C27—C28—H28A	109.5
C5—C1—C2	120.0 (2)	C27—C28—H28B	109.5
C5—C1—N1	120.1 (2)	H28A—C28—H28B	109.5
C2—C1—N1	119.9 (2)	C27—C28—H28C	109.5
C8—C2—C1	119.1 (2)	H28A—C28—H28C	109.5
C8—C2—C3	120.7 (2)	H28B—C28—H28C	109.5
C1—C2—C3	120.2 (2)	C27—C29—H29A	109.5
C4—C3—C11	119.6 (2)	C27—C29—H29B	109.5
C4—C3—C2	120.5 (2)	H29A—C29—H29B	109.5
C11—C3—C2	119.9 (2)	C27—C29—H29C	109.5
C14—C4—C3	119.8 (2)	H29A—C29—H29C	109.5
C14—C4—N2	119.8 (2)	H29B—C29—H29C	109.5
C3—C4—N2	120.3 (2)	C32—C30—C26	110.9 (2)
C6—C5—C1	120.1 (2)	C32—C30—C31	110.2 (3)
C6—C5—H5A	119.9	C26—C30—C31	112.5 (2)
C1—C5—H5A	119.9	C32—C30—H30A	107.7
C7—C6—C5	120.1 (2)	C26—C30—H30A	107.7
C7—C6—H6A	119.9	C31—C30—H30A	107.7
C5—C6—H6A	119.9	C30—C31—H31A	109.5
C6—C7—C8	121.5 (2)	C30—C31—H31B	109.5
C6—C7—H7A	119.2	H31A—C31—H31B	109.5
C8—C7—H7A	119.2	C30—C31—H31C	109.5
C7—C8—C2	119.1 (2)	H31A—C31—H31C	109.5
C7—C8—C9	118.2 (2)	H31B—C31—H31C	109.5
C2—C8—C9	122.7 (2)	C30—C32—H32A	109.5
C8—C9—H9A	109.5	C30—C32—H32B	109.5
C8—C9—H9B	109.5	H32A—C32—H32B	109.5
H9A—C9—H9B	109.5	C30—C32—H32C	109.5
C8—C9—H9C	109.5	H32A—C32—H32C	109.5
H9A—C9—H9C	109.5	H32B—C32—H32C	109.5
H9B—C9—H9C	109.5	N4—C33—C34	120.9 (2)
C11—C10—H10A	109.5	N4—C33—C38	118.1 (2)
C11—C10—H10B	109.5	C34—C33—C38	120.9 (2)
H10A—C10—H10B	109.5	C35—C34—C33	117.9 (2)
C11—C10—H10C	109.5	C35—C34—C39	118.8 (2)
H10A—C10—H10C	109.5	C33—C34—C39	123.2 (2)
H10B—C10—H10C	109.5	C36—C35—C34	121.3 (2)
C12—C11—C3	118.5 (3)	C36—C35—H35A	119.4
C12—C11—C10	119.0 (2)	C34—C35—H35A	119.4
C3—C11—C10	122.4 (3)	C35—C36—C37	120.1 (3)
C13—C12—C11	121.8 (3)	C35—C36—H36A	120.0
C13—C12—H12A	119.1	C37—C36—H36A	120.0
C11—C12—H12A	119.1	C36—C37—C38	121.5 (3)
C12—C13—C14	120.1 (3)	C36—C37—H37A	119.2
C12—C13—H13A	120.0	C38—C37—H37A	119.2
C14—C13—H13A	120.0	C37—C38—C33	118.2 (2)
C13—C14—C4	120.1 (3)	C37—C38—C42	121.7 (2)
C13—C14—H14A	119.9	C33—C38—C42	120.0 (2)
C4—C14—H14A	119.9	C34—C39—C40	112.4 (2)
Si1—C15—H15A	109.5	C34—C39—C41	110.9 (2)
Si1—C15—H15B	109.5	C40—C39—C41	109.5 (2)
H15A—C15—H15B	109.5	C34—C39—H39A	108.0
Si1—C15—H15C	109.5	C40—C39—H39A	108.0
H15A—C15—H15C	109.5	C41—C39—H39A	108.0
H15B—C15—H15C	109.5	C39—C40—H40A	109.5
Si1—C16—H16A	109.5	C39—C40—H40B	109.5
Si1—C16—H16B	109.5	H40A—C40—H40B	109.5
H16A—C16—H16B	109.5	C39—C40—H40C	109.5
Si1—C16—H16C	109.5	H40A—C40—H40C	109.5
H16A—C16—H16C	109.5	H40B—C40—H40C	109.5
H16B—C16—H16C	109.5	C39—C41—H41A	109.5
Si1—C17—H17A	109.5	C39—C41—H41B	109.5
Si1—C17—H17B	109.5	H41A—C41—H41B	109.5
H17A—C17—H17B	109.5	C39—C41—H41C	109.5
Si1—C17—H17C	109.5	H41A—C41—H41C	109.5
H17A—C17—H17C	109.5	H41B—C41—H41C	109.5
H17B—C17—H17C	109.5	C38—C42—C44	114.0 (2)
Si2—C18—H18A	109.5	C38—C42—C43	109.1 (2)
Si2—C18—H18B	109.5	C44—C42—C43	109.7 (2)
H18A—C18—H18B	109.5	C38—C42—H42A	107.9
Si2—C18—H18C	109.5	C44—C42—H42A	107.9
H18A—C18—H18C	109.5	C43—C42—H42A	107.9
H18B—C18—H18C	109.5	C42—C43—H43A	109.5
Si2—C19—H19A	109.5	C42—C43—H43B	109.5
Si2—C19—H19B	109.5	H43A—C43—H43B	109.5
H19A—C19—H19B	109.5	C42—C43—H43C	109.5
Si2—C19—H19C	109.5	H43A—C43—H43C	109.5
H19A—C19—H19C	109.5	H43B—C43—H43C	109.5
H19B—C19—H19C	109.5	C42—C44—H44A	109.5
Si2—C20—H20A	109.5	C42—C44—H44B	109.5
Si2—C20—H20B	109.5	H44A—C44—H44B	109.5
H20A—C20—H20B	109.5	C42—C44—H44C	109.5
Si2—C20—H20C	109.5	H44A—C44—H44C	109.5
H20A—C20—H20C	109.5	H44B—C44—H44C	109.5