Bis[N,N'-bis­(trimethyl­silyl)benzamidinato]diethyl­hafnium(IV)

In the title compound, [Hf(C₂H₅)₂(C₁₃H₂₃N₂Si₂)₂], the Hf atom is coordinated by two ethyl groups and two bis­(tri­methyl­silyl)­benzamidinate (siam) ligands binding in a bidentate coordination mode via their N-donor atoms. The coordination around hafnium is best described as slightly distorted tetra­hedral if the siam ligands are represented by their centroids.

Key indicators

• Single-crystal X-ray study
• T = 183 K
• Mean [sigma](C-C) = 0.013 Å
• R factor = 0.041
• wR factor = 0.110
• Data-to-parameter ratio = 19.8

checkCIF/PLATON results

No syntax errors found



Datablock: I


Alert level A
PLAT027_ALERT_3_A _diffrn_reflns_theta_full (too) Low ............      24.64 Deg.

Alert level C
THETM01_ALERT_3_C  The value of sine(theta_max)/wavelength is less than 0.590
            Calculated sin(theta_max)/wavelength =    0.5866
PLAT023_ALERT_3_C Resolution (too) Low [sin(th)/Lambda < 0.6].....      24.64 Deg.
PLAT220_ALERT_2_C Large Non-Solvent    C     Ueq(max)/Ueq(min) ...       2.97 Ratio
PLAT242_ALERT_2_C Check Low       Ueq as Compared to Neighbors for        Si1
PLAT242_ALERT_2_C Check Low       Ueq as Compared to Neighbors for        Si2
PLAT242_ALERT_2_C Check Low       Ueq as Compared to Neighbors for        Si3
PLAT242_ALERT_2_C Check Low       Ueq as Compared to Neighbors for        Si4
PLAT342_ALERT_3_C Low Bond Precision on C-C bonds (x 1000) Ang ...         13
PLAT369_ALERT_2_C Long   C(sp2)-C(sp2) Bond  C1     -   C2     ...       1.53 Ang.
PLAT602_ALERT_4_C VERY LARGE Solvent Accessible VOID(S) in Structure        !

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

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

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Computing details

Data collection: CAD-4 EXPRESS (Enraf–Nonius, 1994); cell refinement: SET4 (de Boer & Duisenberg, 1984); data reduction: MolEN (Enraf–Nonius, 1990); program(s) used to solve structure: SHELXS86 (Sheldrick, 1990); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: XP (Siemens, 1990); software used to prepare material for publication: SHELXL97.

Bis[N,N'-bis(trimethylsilyl)benzamidinato]diethylhafnium(IV)

Crystal data

[Hf(C2H5)2(C13H23N2Si2)2]	F(000) = 1568
Mr = 763.64	Dx = 1.182 Mg m^−3
Monoclinic, P21/n	Mo Kα radiation, λ = 0.71073 Å
Hall symbol: -P2yn	Cell parameters from 25 reflections
a = 12.205 (2) Å	θ = 18.5–20.1°
b = 20.790 (4) Å	µ = 2.54 mm^−1
c = 17.234 (3) Å	T = 183 K
β = 101.00 (3)°	Cuboid, colorless
V = 4292.6 (13) Å^3	0.12 × 0.08 × 0.08 mm
Z = 4

Data collection

Enraf–Nonius CAD-4 diffractometer	5285 reflections with I > 2σ(I)
Radiation source: fine-focus sealed tube	Rint = 0.039
Graphite monochromator	θmax = 24.6°, θmin = 2.5°
ω/2–θ scans	h = −14→0
Absorption correction: ψ scan (North et al., 1968)	k = 0→24
Tmin = 0.747, Tmax = 0.813	l = −19→20
7584 measured reflections	3 standard reflections every 600 min
7229 independent reflections	intensity decay: 2.2%

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)] = 0.041	Hydrogen site location: inferred from neighbouring sites
wR(F^2) = 0.110	H-atom parameters constrained
S = 1.21	w = 1/[σ^2(Fo^2) + (0.0435P)^2 + 17.7042P] where P = (Fo^2 + 2Fc^2)/3
7229 reflections	(Δ/σ)max = 0.001
366 parameters	Δρmax = 0.95 e Å^−3
0 restraints	Δρmin = −0.78 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.

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

	x	y	z	Uiso*/Ueq
Hf1	0.16156 (2)	0.371892 (14)	0.890536 (17)	0.02855 (10)
N1	0.3101 (5)	0.3346 (3)	0.8441 (4)	0.0349 (14)
C1	0.3381 (6)	0.3936 (4)	0.8271 (4)	0.0343 (17)
N2	0.2637 (5)	0.4401 (3)	0.8290 (4)	0.0357 (14)
C2	0.4523 (6)	0.4074 (4)	0.8063 (4)	0.0367 (17)
C3	0.5354 (7)	0.4338 (5)	0.8628 (5)	0.056 (2)
H3	0.5220	0.4426	0.9131	0.067*
C4	0.6389 (8)	0.4472 (5)	0.8446 (6)	0.071 (3)
H4	0.6947	0.4648	0.8830	0.085*
C5	0.6594 (7)	0.4350 (4)	0.7717 (6)	0.057 (2)
H5	0.7291	0.4442	0.7601	0.068*
C6	0.5763 (7)	0.4087 (4)	0.7143 (6)	0.057 (2)
H6	0.5900	0.4004	0.6640	0.068*
C7	0.4716 (6)	0.3946 (4)	0.7323 (5)	0.046 (2)
H7	0.4157	0.3767	0.6942	0.055*
Si1	0.38080 (18)	0.26238 (11)	0.85062 (14)	0.0413 (5)
C8	0.2914 (9)	0.2046 (4)	0.8925 (7)	0.074 (3)
H8A	0.3241	0.1625	0.8945	0.111*
H8B	0.2184	0.2036	0.8597	0.111*
H8C	0.2856	0.2179	0.9449	0.111*
C9	0.3943 (9)	0.2307 (5)	0.7514 (6)	0.074 (3)
H9A	0.4382	0.1921	0.7579	0.111*
H9B	0.4302	0.2623	0.7242	0.111*
H9C	0.3215	0.2214	0.7212	0.111*
C10	0.5221 (8)	0.2671 (5)	0.9123 (7)	0.081 (3)
H10A	0.5681	0.2945	0.8871	0.121*
H10B	0.5542	0.2248	0.9187	0.121*
H10C	0.5173	0.2845	0.9632	0.121*
Si2	0.2656 (2)	0.52126 (11)	0.80587 (15)	0.0463 (6)
C11	0.3599 (10)	0.5420 (5)	0.7358 (7)	0.085 (4)
H11A	0.3524	0.5869	0.7227	0.128*
H11B	0.3399	0.5168	0.6885	0.128*
H11C	0.4358	0.5330	0.7602	0.128*
C12	0.1221 (8)	0.5421 (5)	0.7545 (6)	0.070 (3)
H12A	0.1231	0.5828	0.7284	0.104*
H12B	0.0739	0.5447	0.7924	0.104*
H12C	0.0950	0.5095	0.7161	0.104*
C13	0.3079 (8)	0.5690 (4)	0.8973 (6)	0.065 (3)
H13A	0.2965	0.6139	0.8854	0.097*
H13B	0.3853	0.5614	0.9188	0.097*
H13C	0.2637	0.5564	0.9353	0.097*
N3	0.0294 (5)	0.3042 (3)	0.9181 (3)	0.0351 (14)
C14	−0.0022 (5)	0.2892 (3)	0.8430 (4)	0.0312 (16)
N4	0.0472 (5)	0.3205 (3)	0.7915 (3)	0.0341 (14)
C15	−0.0883 (6)	0.2381 (4)	0.8155 (5)	0.0404 (18)
C16	−0.0595 (7)	0.1738 (4)	0.8228 (5)	0.052 (2)
H16	0.0130	0.1622	0.8460	0.062*
C17	−0.1363 (9)	0.1271 (5)	0.7964 (6)	0.071 (3)
H17	−0.1159	0.0840	0.8018	0.085*
C18	−0.2437 (9)	0.1436 (6)	0.7616 (7)	0.078 (3)
H18	−0.2954	0.1117	0.7425	0.094*
C19	−0.2735 (8)	0.2059 (6)	0.7554 (6)	0.071 (3)
H19	−0.3467	0.2167	0.7334	0.085*
C20	−0.1964 (6)	0.2551 (5)	0.7815 (5)	0.054 (2)
H20	−0.2176	0.2981	0.7761	0.064*
Si3	−0.01994 (18)	0.27927 (11)	1.00247 (13)	0.0423 (5)
C21	0.0741 (9)	0.2157 (5)	1.0512 (6)	0.074 (3)
H21A	0.0676	0.1783	1.0179	0.112*
H21B	0.0539	0.2047	1.1008	0.112*
H21C	0.1497	0.2309	1.0605	0.112*
C22	−0.0175 (8)	0.3488 (4)	1.0691 (5)	0.058 (2)
H22A	−0.0521	0.3373	1.1127	0.087*
H22B	−0.0575	0.3840	1.0406	0.087*
H22C	0.0584	0.3615	1.0886	0.087*
C23	−0.1665 (9)	0.2502 (7)	0.9817 (6)	0.092 (4)
H23A	−0.1915	0.2436	1.0306	0.138*
H23B	−0.1705	0.2103	0.9531	0.138*
H23C	−0.2132	0.2816	0.9506	0.138*
Si4	0.02677 (19)	0.31386 (12)	0.68967 (13)	0.0444 (6)
C24	0.1440 (8)	0.3548 (5)	0.6574 (5)	0.059 (3)
H24A	0.1354	0.3517	0.6010	0.088*
H24B	0.2129	0.3348	0.6819	0.088*
H24C	0.1450	0.3992	0.6726	0.088*
C25	0.0235 (10)	0.2284 (5)	0.6558 (6)	0.087 (4)
H25A	0.0404	0.2266	0.6036	0.130*
H25B	−0.0495	0.2107	0.6548	0.130*
H25C	0.0778	0.2039	0.6914	0.130*
C26	−0.1029 (8)	0.3558 (6)	0.6430 (6)	0.091 (4)
H26A	−0.1135	0.3515	0.5866	0.137*
H26B	−0.0972	0.4006	0.6569	0.137*
H26C	−0.1653	0.3372	0.6614	0.137*
C27	0.0637 (6)	0.4585 (4)	0.9150 (5)	0.044 (2)
H27A	0.0636	0.4599	0.9712	0.053*
H27B	0.1020	0.4967	0.9018	0.053*
C28	−0.0585 (7)	0.4612 (4)	0.8701 (7)	0.066 (3)
H28A	−0.0939	0.4991	0.8857	0.099*
H28B	−0.0977	0.4237	0.8824	0.099*
H28C	−0.0598	0.4627	0.8143	0.099*
C29	0.2607 (7)	0.3572 (4)	1.0141 (5)	0.051 (2)
H29A	0.2113	0.3620	1.0517	0.062*
H29B	0.2897	0.3136	1.0187	0.062*
C30	0.3567 (9)	0.4037 (5)	1.0353 (6)	0.073 (3)
H30A	0.3860	0.4013	1.0910	0.080*
H30B	0.3309	0.4466	1.0217	0.080*
H30C	0.4142	0.3927	1.0066	0.080*

Atomic displacement parameters (Ų)

	U^11	U^22	U^33	U^12	U^13	U^23
Hf1	0.02409 (14)	0.03094 (16)	0.03047 (16)	−0.00067 (15)	0.00483 (10)	−0.00339 (15)
N1	0.033 (3)	0.028 (3)	0.045 (4)	0.001 (3)	0.011 (3)	−0.004 (3)
C1	0.030 (4)	0.039 (4)	0.033 (4)	−0.004 (3)	0.003 (3)	−0.006 (3)
N2	0.036 (3)	0.033 (3)	0.041 (4)	0.001 (3)	0.014 (3)	0.001 (3)
C2	0.033 (4)	0.035 (4)	0.046 (5)	0.000 (3)	0.016 (3)	−0.009 (4)
C3	0.044 (5)	0.075 (7)	0.050 (5)	−0.013 (5)	0.012 (4)	−0.023 (5)
C4	0.042 (5)	0.087 (8)	0.085 (8)	−0.014 (5)	0.017 (5)	−0.029 (6)
C5	0.041 (5)	0.052 (5)	0.086 (7)	−0.012 (4)	0.034 (5)	−0.018 (5)
C6	0.055 (5)	0.057 (6)	0.070 (6)	−0.015 (5)	0.041 (5)	−0.015 (5)
C7	0.039 (4)	0.050 (5)	0.050 (5)	−0.010 (4)	0.014 (4)	−0.012 (4)
Si1	0.0387 (12)	0.0371 (12)	0.0503 (14)	0.0080 (10)	0.0139 (10)	−0.0012 (10)
C8	0.091 (8)	0.041 (5)	0.105 (9)	0.013 (5)	0.056 (7)	0.015 (5)
C9	0.098 (8)	0.056 (6)	0.078 (7)	0.009 (6)	0.037 (6)	−0.009 (5)
C10	0.063 (6)	0.065 (7)	0.106 (9)	0.025 (5)	−0.002 (6)	−0.002 (6)
Si2	0.0489 (13)	0.0315 (12)	0.0627 (15)	−0.0028 (10)	0.0210 (12)	0.0027 (11)
C11	0.103 (9)	0.052 (6)	0.116 (10)	0.009 (6)	0.060 (8)	0.028 (6)
C12	0.082 (7)	0.048 (6)	0.077 (7)	0.008 (5)	0.011 (6)	0.017 (5)
C13	0.061 (6)	0.038 (5)	0.096 (8)	−0.012 (4)	0.018 (5)	−0.016 (5)
N3	0.036 (3)	0.034 (3)	0.035 (4)	−0.001 (3)	0.008 (3)	0.002 (3)
C14	0.025 (3)	0.030 (4)	0.038 (4)	−0.002 (3)	0.004 (3)	−0.010 (3)
N4	0.036 (3)	0.035 (3)	0.030 (3)	−0.007 (3)	0.002 (3)	−0.006 (3)
C15	0.033 (4)	0.048 (5)	0.041 (4)	−0.008 (4)	0.009 (3)	0.001 (4)
C16	0.052 (5)	0.036 (5)	0.070 (6)	−0.004 (4)	0.019 (4)	−0.009 (4)
C17	0.084 (7)	0.042 (5)	0.091 (7)	−0.022 (6)	0.030 (6)	−0.019 (6)
C18	0.077 (8)	0.074 (8)	0.082 (8)	−0.039 (6)	0.011 (6)	−0.012 (6)
C19	0.046 (5)	0.101 (9)	0.060 (6)	−0.026 (6)	−0.004 (5)	0.004 (6)
C20	0.035 (5)	0.063 (6)	0.060 (6)	−0.006 (4)	0.003 (4)	−0.001 (5)
Si3	0.0427 (12)	0.0470 (13)	0.0391 (12)	−0.0057 (10)	0.0126 (10)	0.0029 (10)
C21	0.112 (9)	0.062 (6)	0.057 (6)	0.014 (6)	0.035 (6)	0.018 (5)
C22	0.078 (6)	0.058 (6)	0.046 (5)	−0.001 (5)	0.031 (5)	0.007 (4)
C23	0.073 (7)	0.143 (12)	0.072 (7)	−0.035 (7)	0.043 (6)	−0.011 (7)
Si4	0.0467 (13)	0.0528 (14)	0.0322 (12)	−0.0106 (11)	0.0040 (10)	−0.0042 (10)
C24	0.066 (6)	0.072 (7)	0.042 (5)	−0.017 (5)	0.016 (4)	−0.004 (4)
C25	0.131 (10)	0.076 (8)	0.060 (7)	−0.035 (7)	0.035 (7)	−0.019 (6)
C26	0.067 (7)	0.150 (12)	0.051 (6)	0.005 (7)	−0.006 (5)	0.040 (7)
C27	0.047 (5)	0.038 (4)	0.051 (5)	−0.004 (4)	0.019 (4)	−0.011 (4)
C28	0.038 (5)	0.043 (5)	0.116 (9)	0.004 (4)	0.014 (5)	−0.013 (5)
C29	0.045 (5)	0.072 (6)	0.037 (4)	0.000 (4)	0.006 (4)	0.000 (4)
C30	0.088 (8)	0.067 (7)	0.051 (6)	−0.020 (6)	−0.017 (5)	−0.002 (5)

Geometric parameters (Å, º)

Hf1—C27	2.244 (7)	C14—N4	1.334 (9)
Hf1—C29	2.261 (8)	C14—C15	1.505 (10)
Hf1—N1	2.255 (6)	N4—Si4	1.731 (6)
Hf1—N4	2.256 (5)	C15—C20	1.383 (11)
Hf1—N3	2.258 (6)	C15—C16	1.382 (11)
Hf1—N2	2.279 (6)	C16—C17	1.367 (12)
Hf1—C1	2.634 (7)	C16—H16	0.9300
Hf1—C14	2.646 (7)	C17—C18	1.376 (15)
N1—C1	1.320 (9)	C17—H17	0.9300
N1—Si1	1.725 (6)	C18—C19	1.345 (15)
C1—N2	1.331 (9)	C18—H18	0.9300
C1—C2	1.531 (10)	C19—C20	1.404 (12)
N2—Si2	1.735 (6)	C19—H19	0.9300
C2—C7	1.366 (10)	C20—H20	0.9300
C2—C3	1.379 (11)	Si3—C21	1.845 (10)
C3—C4	1.386 (12)	Si3—C22	1.843 (9)
C3—H3	0.9300	Si3—C23	1.857 (10)
C4—C5	1.351 (12)	C21—H21A	0.9600
C4—H4	0.9300	C21—H21B	0.9600
C5—C6	1.387 (12)	C21—H21C	0.9600
C5—H5	0.9300	C22—H22A	0.9600
C6—C7	1.402 (10)	C22—H22B	0.9600
C6—H6	0.9300	C22—H22C	0.9600
C7—H7	0.9300	C23—H23A	0.9600
Si1—C10	1.848 (10)	C23—H23B	0.9600
Si1—C8	1.858 (9)	C23—H23C	0.9600
Si1—C9	1.868 (10)	Si4—C24	1.839 (9)
C8—H8A	0.9600	Si4—C26	1.851 (10)
C8—H8B	0.9600	Si4—C25	1.869 (10)
C8—H8C	0.9600	C24—H24A	0.9600
C9—H9A	0.9600	C24—H24B	0.9600
C9—H9B	0.9600	C24—H24C	0.9600
C9—H9C	0.9600	C25—H25A	0.9600
C10—H10A	0.9600	C25—H25B	0.9600
C10—H10B	0.9600	C25—H25C	0.9600
C10—H10C	0.9600	C26—H26A	0.9600
Si2—C13	1.851 (9)	C26—H26B	0.9600
Si2—C12	1.857 (10)	C26—H26C	0.9600
Si2—C11	1.871 (10)	C27—C28	1.544 (11)
C11—H11A	0.9600	C27—H27A	0.9700
C11—H11B	0.9600	C27—H27B	0.9700
C11—H11C	0.9600	C28—H28A	0.9600
C12—H12A	0.9600	C28—H28B	0.9600
C12—H12B	0.9600	C28—H28C	0.9600
C12—H12C	0.9600	C29—C30	1.509 (12)
C13—H13A	0.9600	C29—H29A	0.9700
C13—H13B	0.9600	C29—H29B	0.9700
C13—H13C	0.9600	C30—H30A	0.9600
N3—C14	1.316 (9)	C30—H30B	0.9600
N3—Si3	1.755 (6)	C30—H30C	0.9600
C27—Hf1—C29	98.1 (3)	H13A—C13—H13C	109.5
C27—Hf1—N1	146.6 (3)	H13B—C13—H13C	109.5
C29—Hf1—N1	88.0 (3)	C14—N3—Si3	131.5 (5)
C27—Hf1—N4	104.3 (3)	C14—N3—Hf1	91.6 (4)
C29—Hf1—N4	142.3 (3)	Si3—N3—Hf1	136.9 (3)
N1—Hf1—N4	89.6 (2)	N3—C14—N4	116.9 (6)
C27—Hf1—N3	91.9 (3)	N3—C14—C15	122.2 (7)
C29—Hf1—N3	89.6 (3)	N4—C14—C15	120.9 (6)
N1—Hf1—N3	121.1 (2)	N3—C14—Hf1	58.5 (4)
N4—Hf1—N3	60.0 (2)	N4—C14—Hf1	58.5 (3)
C27—Hf1—N2	86.9 (3)	C15—C14—Hf1	175.4 (5)
C29—Hf1—N2	106.3 (3)	C14—N4—Si4	129.7 (5)
N1—Hf1—N2	60.0 (2)	C14—N4—Hf1	91.3 (4)
N4—Hf1—N2	104.9 (2)	Si4—N4—Hf1	138.9 (3)
N3—Hf1—N2	164.1 (2)	C20—C15—C16	119.4 (8)
C27—Hf1—C1	116.6 (3)	C20—C15—C14	120.4 (7)
C29—Hf1—C1	94.7 (3)	C16—C15—C14	120.2 (7)
N1—Hf1—C1	30.1 (2)	C17—C16—C15	120.7 (9)
N4—Hf1—C1	101.8 (2)	C17—C16—H16	119.7
N3—Hf1—C1	150.2 (2)	C15—C16—H16	119.7
N2—Hf1—C1	30.4 (2)	C16—C17—C18	120.3 (10)
C27—Hf1—C14	100.5 (2)	C16—C17—H17	119.9
C29—Hf1—C14	116.2 (3)	C18—C17—H17	119.9
N1—Hf1—C14	106.1 (2)	C19—C18—C17	119.7 (9)
N4—Hf1—C14	30.3 (2)	C19—C18—H18	120.2
N3—Hf1—C14	29.8 (2)	C17—C18—H18	120.2
N2—Hf1—C14	135.1 (2)	C18—C19—C20	121.5 (10)
C1—Hf1—C14	127.7 (2)	C18—C19—H19	119.3
C1—N1—Si1	132.5 (5)	C20—C19—H19	119.3
C1—N1—Hf1	91.1 (4)	C15—C20—C19	118.4 (9)
Si1—N1—Hf1	134.6 (3)	C15—C20—H20	120.8
N1—C1—N2	117.6 (6)	C19—C20—H20	120.8
N1—C1—C2	120.8 (6)	N3—Si3—C21	107.9 (4)
N2—C1—C2	121.7 (7)	N3—Si3—C22	108.4 (3)
N1—C1—Hf1	58.8 (4)	C21—Si3—C22	110.1 (5)
N2—C1—Hf1	59.9 (4)	N3—Si3—C23	114.0 (4)
C2—C1—Hf1	169.2 (5)	C21—Si3—C23	110.3 (6)
C1—N2—Si2	131.4 (5)	C22—Si3—C23	106.0 (5)
C1—N2—Hf1	89.8 (4)	Si3—C21—H21A	109.5
Si2—N2—Hf1	138.1 (3)	Si3—C21—H21B	109.5
C7—C2—C3	120.1 (7)	H21A—C21—H21B	109.5
C7—C2—C1	120.6 (7)	Si3—C21—H21C	109.5
C3—C2—C1	119.3 (7)	H21A—C21—H21C	109.5
C2—C3—C4	120.0 (8)	H21B—C21—H21C	109.5
C2—C3—H3	120.0	Si3—C22—H22A	109.5
C4—C3—H3	120.0	Si3—C22—H22B	109.5
C5—C4—C3	120.7 (9)	H22A—C22—H22B	109.5
C5—C4—H4	119.6	Si3—C22—H22C	109.5
C3—C4—H4	119.6	H22A—C22—H22C	109.5
C4—C5—C6	119.8 (8)	H22B—C22—H22C	109.5
C4—C5—H5	120.1	Si3—C23—H23A	109.5
C6—C5—H5	120.1	Si3—C23—H23B	109.5
C5—C6—C7	119.8 (8)	H23A—C23—H23B	109.5
C5—C6—H6	120.1	Si3—C23—H23C	109.5
C7—C6—H6	120.1	H23A—C23—H23C	109.5
C2—C7—C6	119.6 (8)	H23B—C23—H23C	109.5
C2—C7—H7	120.2	N4—Si4—C24	107.4 (3)
C6—C7—H7	120.2	N4—Si4—C26	110.4 (4)
N1—Si1—C10	113.0 (4)	C24—Si4—C26	107.5 (5)
N1—Si1—C8	105.4 (4)	N4—Si4—C25	112.5 (4)
C10—Si1—C8	111.3 (5)	C24—Si4—C25	108.5 (5)
N1—Si1—C9	112.2 (4)	C26—Si4—C25	110.3 (6)
C10—Si1—C9	108.0 (5)	Si4—C24—H24A	109.5
C8—Si1—C9	106.8 (5)	Si4—C24—H24B	109.5
Si1—C8—H8A	109.5	H24A—C24—H24B	109.5
Si1—C8—H8B	109.5	Si4—C24—H24C	109.5
H8A—C8—H8B	109.5	H24A—C24—H24C	109.5
Si1—C8—H8C	109.5	H24B—C24—H24C	109.5
H8A—C8—H8C	109.5	Si4—C25—H25A	109.5
H8B—C8—H8C	109.5	Si4—C25—H25B	109.5
Si1—C9—H9A	109.5	H25A—C25—H25B	109.5
Si1—C9—H9B	109.5	Si4—C25—H25C	109.5
H9A—C9—H9B	109.5	H25A—C25—H25C	109.5
Si1—C9—H9C	109.5	H25B—C25—H25C	109.5
H9A—C9—H9C	109.5	Si4—C26—H26A	109.5
H9B—C9—H9C	109.5	Si4—C26—H26B	109.5
Si1—C10—H10A	109.5	H26A—C26—H26B	109.5
Si1—C10—H10B	109.5	Si4—C26—H26C	109.5
H10A—C10—H10B	109.5	H26A—C26—H26C	109.5
Si1—C10—H10C	109.5	H26B—C26—H26C	109.5
H10A—C10—H10C	109.5	C28—C27—Hf1	115.7 (5)
H10B—C10—H10C	109.5	C28—C27—H27A	108.4
N2—Si2—C13	109.9 (4)	Hf1—C27—H27A	108.4
N2—Si2—C12	106.5 (4)	C28—C27—H27B	108.4
C13—Si2—C12	111.4 (5)	Hf1—C27—H27B	108.4
N2—Si2—C11	114.2 (4)	H27A—C27—H27B	107.4
C13—Si2—C11	108.7 (5)	C27—C28—H28A	109.5
C12—Si2—C11	106.2 (5)	C27—C28—H28B	109.5
Si2—C11—H11A	109.5	H28A—C28—H28B	109.5
Si2—C11—H11B	109.5	C27—C28—H28C	109.5
H11A—C11—H11B	109.5	H28A—C28—H28C	109.5
Si2—C11—H11C	109.5	H28B—C28—H28C	109.5
H11A—C11—H11C	109.5	C30—C29—Hf1	113.1 (6)
H11B—C11—H11C	109.5	C30—C29—H29A	109.0
Si2—C12—H12A	109.5	Hf1—C29—H29A	109.0
Si2—C12—H12B	109.5	C30—C29—H29B	109.0
H12A—C12—H12B	109.5	Hf1—C29—H29B	109.0
Si2—C12—H12C	109.5	H29A—C29—H29B	107.8
H12A—C12—H12C	109.5	C29—C30—H30A	109.5
H12B—C12—H12C	109.5	C29—C30—H30B	109.5
Si2—C13—H13A	109.5	H30A—C30—H30B	109.5
Si2—C13—H13B	109.5	C29—C30—H30C	109.5
H13A—C13—H13B	109.5	H30A—C30—H30C	109.5
Si2—C13—H13C	109.5	H30B—C30—H30C	109.5