Di-μ-methoxo-κ⁴O:O-bis­[bis­(1,3-diphenyl­propane-1,3-dionato-κ²O,O′)chromium(III)]

The title compound, [Cr₂(CH₃O)₂(C₁₅H₁₁O₂)₄], was obtained from the reaction of [CrCl₃(C₄H₈O)₃] with 1,3-diphenyl­propane-1,3-dione and sodium methoxide in anydrous methanol. Its structure consists of discrete mol­ecules, in which two centrosymmetrically related chromium(III) ions are bridged by two methoxide ligands and complete their octa­hedral coordination geometry with O atoms from β-diketonate mol­ecules acting as ancillary ligands.

Key indicators

• Single-crystal X-ray study
• T = 298 K
• Mean [sigma](C-C) = 0.007 Å
• R factor = 0.055
• wR factor = 0.193
• Data-to-parameter ratio = 23.1

checkCIF/PLATON results

No syntax errors found



Alert level B
PLAT026_ALERT_3_B Ratio Observed / Unique Reflections too Low ....         38 Perc.

Alert level C
PLAT241_ALERT_2_C Check High      Ueq as Compared to Neighbors for        C12
PLAT331_ALERT_2_C Small Average Phenyl C-C Dist.   C25    -C30           1.37 Ang.
PLAT341_ALERT_3_C Low Bond Precision on C-C bonds (x 1000) Ang ...          7

   0 ALERT level A = In general: serious problem
   1 ALERT level B = Potentially serious problem
   3 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
   2 ALERT type 2 Indicator that the structure model may be wrong or deficient
   2 ALERT type 3 Indicator that the structure quality may be low
   0 ALERT type 4 Improvement, methodology, query or suggestion

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Computing details

Data collection: CAD-4 Software (Enraf–Nonius, 1989); cell refinement: CAD-4 Software; data reduction: XCAD4 (Harms & Wocadlo, 1995); program(s) used to solve structure: SIR97 (Altomare, 1999); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: ORTEP-3 for Windows (Farrugia, 1997); software used to prepare material for publication: WinGX (Farrugia, 1999).

Di-µ-methoxo-κ⁴O:O-bis[bis(1,3-diphenylpropane-1,3-dionato- κ²O,O')chromium(III)]

Crystal data

[Cr2(CH3O)2(C15H11O2)4]	Z = 1
Mr = 1059.02	F(000) = 550
Triclinic, P1	Dx = 1.324 Mg m^−3 Dm = 1.33 (1) Mg m^−3 Dm measured by flotation in MeOH/CHBr3
Hall symbol: -P 1	Mo Kα radiation, λ = 0.71073 Å
a = 9.618 (2) Å	Cell parameters from 20 reflections
b = 10.905 (2) Å	θ = 8.0–14.2°
c = 13.030 (2) Å	µ = 0.47 mm^−1
α = 79.16 (2)°	T = 298 K
β = 87.389 (10)°	Rod-like, green–brown
γ = 81.635 (10)°	0.40 × 0.20 × 0.15 mm
V = 1327.7 (4) Å^3

Data collection

Enraf–Nonius CAD 4 diffractometer	2954 reflections with I > 2σ(I)
Radiation source: fine-focus sealed tube	Rint = 0.046
Graphite monochromator	θmax = 30.0°, θmin = 2.1°
ω/2θ scans	h = −13→13
Absorption correction: ψ scan (North et al., 1968)	k = −15→15
Tmin = 0.835, Tmax = 0.933	l = 0→18
8032 measured reflections	2 standard reflections every 60 min
7716 independent reflections	intensity decay: 4%

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)] = 0.055	Hydrogen site location: inferred from neighbouring sites
wR(F^2) = 0.193	H-atom parameters constrained
S = 0.94	w = 1/[σ^2(Fo^2) + (0.091P)^2] where P = (Fo^2 + 2Fc^2)/3
7716 reflections	(Δ/σ)max < 0.001
334 parameters	Δρmax = 0.42 e Å^−3
0 restraints	Δρmin = −0.48 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.

Least-squares planes (x,y,z in crystal coordinates) and deviations from them (* indicates atom used to define plane) - 4.4671 (0.0138) x + 3.9308 (0.0131) y + 10.6454 (0.0084) z = 7.2881 (0.0103) * 0.0000 (0.0000) Cr1 * 0.0000 (0.0000) Cr1_$1 * 0.0000 (0.0000) O5 * 0.0000 (0.0000) O5_$1 0.7599 (0.0060) C31 - 0.7599 (0.0060) C31_$1

6.5985 (0.0101) x + 3.5864 (0.0186) y + 9.7857 (0.0115) z = 6.9656 (0.0071) * -0.0077 (0.0016) O1 * 0.0184 (0.0017) O2 * -0.0011 (0.0025) C1 * -0.0304 (0.0026) C2 * 0.0208 (0.0026) C3 0.4743 (0.0039) Cr1 Rms deviation of fitted atoms = 0.0187

3.6749 (0.0110) x + 10.5759 (0.0050) y + 2.5673 (0.0261) z = 6.2073 (0.0188) A ngle to previous plane (with approximate e.s.d.) = 61.10 (0.15) * -0.0125 (0.0017) O3 * 0.0040 (0.0017) O4 * 0.0214 (0.0026) C16 * 0.0031 (0.0027) C17 * -0.0161 (0.0027) C18 - 0.4122 (0.0042) Cr1 Rms deviation of fitted atoms = 0.0134

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
Cr1	0.07013 (6)	0.38473 (5)	0.57199 (4)	0.03933 (19)
O1	0.1929 (3)	0.3240 (2)	0.46223 (18)	0.0438 (6)
O2	0.0232 (3)	0.2154 (2)	0.61909 (19)	0.0495 (6)
O3	−0.0400 (2)	0.4316 (2)	0.69211 (18)	0.0449 (6)
O4	0.2391 (3)	0.3449 (2)	0.65657 (18)	0.0507 (7)
O5	−0.0949 (2)	0.4397 (2)	0.48246 (17)	0.0396 (5)
C1	0.2495 (4)	0.2104 (4)	0.4663 (3)	0.0479 (9)
C2	0.0948 (4)	0.1128 (3)	0.6034 (3)	0.0482 (9)
C3	0.2084 (4)	0.1061 (4)	0.5345 (3)	0.0525 (10)
H3	0.2605	0.0275	0.5335	0.063*
C4	0.3709 (4)	0.1908 (4)	0.3925 (3)	0.0510 (10)
C5	0.4591 (5)	0.2801 (5)	0.3693 (4)	0.0677 (12)
H5	0.4424	0.3520	0.3991	0.081*
C6	0.5726 (5)	0.2647 (6)	0.3021 (4)	0.0826 (15)
H6	0.6328	0.3255	0.2877	0.099*
C7	0.5967 (6)	0.1608 (6)	0.2568 (4)	0.0808 (15)
H7	0.6735	0.1508	0.2116	0.097*
C8	0.5099 (6)	0.0724 (5)	0.2770 (4)	0.0859 (17)
H8	0.5254	0.0026	0.2444	0.103*
C9	0.3969 (5)	0.0857 (5)	0.3468 (4)	0.0705 (13)
H9	0.3389	0.0232	0.3626	0.085*
C10	0.0489 (4)	−0.0031 (4)	0.6680 (3)	0.0503 (9)
C11	−0.0174 (5)	0.0052 (4)	0.7616 (4)	0.0699 (13)
H11	−0.0320	0.0820	0.7843	0.084*
C12	−0.0628 (6)	−0.0983 (5)	0.8226 (4)	0.0917 (18)
H12	−0.1052	−0.0922	0.8874	0.110*
C13	−0.0456 (6)	−0.2115 (5)	0.7881 (5)	0.0815 (15)
H13	−0.0792	−0.2812	0.8286	0.098*
C14	0.0202 (5)	−0.2216 (4)	0.6948 (4)	0.0733 (14)
H14	0.0328	−0.2985	0.6722	0.088*
C15	0.0683 (5)	−0.1185 (4)	0.6339 (4)	0.0623 (11)
H15	0.1135	−0.1256	0.5702	0.075*
C16	−0.0054 (4)	0.3999 (3)	0.7868 (3)	0.0459 (9)
C17	0.2431 (4)	0.3194 (4)	0.7553 (3)	0.0483 (9)
C18	0.1290 (4)	0.3412 (4)	0.8213 (3)	0.0573 (11)
H18	0.1418	0.3156	0.8929	0.069*
C19	−0.1166 (4)	0.4339 (4)	0.8647 (3)	0.0461 (9)
C20	−0.1086 (5)	0.3796 (5)	0.9697 (3)	0.0679 (12)
H20	−0.0337	0.3180	0.9930	0.081*
C21	−0.2102 (5)	0.4161 (5)	1.0395 (3)	0.0763 (14)
H21	−0.2036	0.3793	1.1099	0.092*
C22	−0.3206 (5)	0.5057 (5)	1.0063 (4)	0.0735 (14)
H22	−0.3893	0.5304	1.0537	0.088*
C23	−0.3297 (5)	0.5593 (5)	0.9025 (4)	0.0730 (13)
H23	−0.4040	0.6217	0.8796	0.088*
C24	−0.2298 (4)	0.5215 (4)	0.8321 (3)	0.0556 (10)
H24	−0.2393	0.5558	0.7614	0.067*
C25	0.3839 (4)	0.2681 (4)	0.8008 (3)	0.0522 (10)
C26	0.4021 (5)	0.2068 (5)	0.9022 (3)	0.0718 (13)
H26	0.3233	0.1939	0.9449	0.086*
C27	0.5339 (6)	0.1635 (5)	0.9429 (4)	0.0846 (16)
H27	0.5442	0.1229	1.0121	0.102*
C28	0.6487 (6)	0.1816 (5)	0.8797 (5)	0.0817 (15)
H28	0.7382	0.1528	0.9059	0.098*
C29	0.6335 (6)	0.2406 (6)	0.7798 (5)	0.0925 (18)
H29	0.7127	0.2530	0.7376	0.111*
C30	0.5021 (5)	0.2827 (5)	0.7395 (4)	0.0744 (14)
H30	0.4932	0.3217	0.6697	0.089*
C31	−0.2292 (4)	0.4030 (4)	0.5110 (3)	0.0580 (10)
H31A	−0.2194	0.3136	0.5357	0.087*
H31B	−0.2887	0.4248	0.4512	0.087*
H31C	−0.2705	0.4459	0.5653	0.087*

Atomic displacement parameters (Ų)

	U^11	U^22	U^33	U^12	U^13	U^23
Cr1	0.0459 (4)	0.0365 (3)	0.0317 (3)	0.0015 (2)	0.0040 (2)	−0.0031 (2)
O1	0.0515 (16)	0.0406 (13)	0.0365 (13)	0.0005 (11)	0.0065 (11)	−0.0068 (10)
O2	0.0576 (17)	0.0357 (13)	0.0495 (15)	0.0021 (12)	0.0102 (12)	−0.0027 (11)
O3	0.0459 (15)	0.0506 (15)	0.0337 (13)	0.0042 (12)	0.0035 (11)	−0.0056 (11)
O4	0.0507 (16)	0.0606 (17)	0.0346 (13)	0.0024 (13)	0.0036 (11)	−0.0019 (12)
O5	0.0421 (14)	0.0386 (13)	0.0375 (13)	−0.0041 (11)	0.0019 (10)	−0.0069 (10)
C1	0.049 (2)	0.052 (2)	0.0387 (19)	0.0056 (18)	−0.0029 (16)	−0.0088 (17)
C2	0.054 (2)	0.041 (2)	0.046 (2)	0.0021 (17)	−0.0065 (18)	−0.0042 (16)
C3	0.056 (2)	0.045 (2)	0.050 (2)	0.0100 (18)	0.0015 (18)	−0.0047 (17)
C4	0.043 (2)	0.060 (2)	0.045 (2)	0.0084 (19)	0.0014 (17)	−0.0077 (18)
C5	0.057 (3)	0.087 (3)	0.061 (3)	−0.005 (2)	0.005 (2)	−0.022 (2)
C6	0.054 (3)	0.117 (5)	0.078 (3)	−0.011 (3)	0.010 (3)	−0.023 (3)
C7	0.066 (3)	0.104 (4)	0.061 (3)	0.019 (3)	0.010 (2)	−0.014 (3)
C8	0.101 (4)	0.079 (4)	0.072 (3)	0.022 (3)	0.015 (3)	−0.028 (3)
C9	0.075 (3)	0.070 (3)	0.065 (3)	0.002 (2)	0.014 (2)	−0.023 (2)
C10	0.045 (2)	0.045 (2)	0.056 (2)	−0.0021 (17)	−0.0113 (18)	0.0024 (18)
C11	0.091 (4)	0.045 (2)	0.069 (3)	−0.006 (2)	0.012 (3)	−0.005 (2)
C12	0.129 (5)	0.063 (3)	0.076 (3)	−0.023 (3)	0.030 (3)	0.006 (3)
C13	0.095 (4)	0.058 (3)	0.087 (4)	−0.028 (3)	−0.009 (3)	0.015 (3)
C14	0.084 (4)	0.044 (2)	0.091 (4)	−0.006 (2)	−0.035 (3)	−0.007 (2)
C15	0.069 (3)	0.051 (2)	0.064 (3)	−0.001 (2)	−0.014 (2)	−0.005 (2)
C16	0.054 (2)	0.043 (2)	0.039 (2)	−0.0023 (17)	0.0025 (17)	−0.0091 (16)
C17	0.054 (2)	0.046 (2)	0.044 (2)	−0.0038 (17)	0.0003 (17)	−0.0097 (16)
C18	0.049 (2)	0.080 (3)	0.037 (2)	0.002 (2)	0.0001 (17)	−0.0051 (19)
C19	0.049 (2)	0.055 (2)	0.0360 (18)	−0.0095 (18)	0.0059 (16)	−0.0119 (16)
C20	0.062 (3)	0.093 (3)	0.039 (2)	0.004 (2)	0.0091 (19)	−0.002 (2)
C21	0.071 (3)	0.113 (4)	0.042 (2)	−0.013 (3)	0.014 (2)	−0.011 (3)
C22	0.061 (3)	0.107 (4)	0.059 (3)	−0.018 (3)	0.027 (2)	−0.033 (3)
C23	0.056 (3)	0.084 (3)	0.075 (3)	0.003 (2)	0.018 (2)	−0.018 (3)
C24	0.054 (3)	0.056 (2)	0.054 (2)	−0.004 (2)	0.0092 (19)	−0.0086 (19)
C25	0.052 (2)	0.048 (2)	0.055 (2)	0.0025 (18)	−0.0100 (19)	−0.0080 (18)
C26	0.069 (3)	0.084 (3)	0.052 (3)	0.010 (3)	0.005 (2)	−0.004 (2)
C27	0.096 (4)	0.090 (4)	0.056 (3)	0.022 (3)	−0.024 (3)	−0.004 (3)
C28	0.057 (3)	0.089 (4)	0.092 (4)	0.008 (3)	−0.025 (3)	−0.007 (3)
C29	0.060 (3)	0.114 (5)	0.089 (4)	−0.012 (3)	−0.003 (3)	0.018 (3)
C30	0.059 (3)	0.087 (3)	0.067 (3)	−0.006 (3)	−0.003 (2)	0.009 (3)
C31	0.049 (2)	0.060 (3)	0.065 (3)	−0.011 (2)	−0.002 (2)	−0.008 (2)

Geometric parameters (Å, º)

Cr1—O2	1.945 (3)	C12—H12	0.9300
Cr1—O4	1.955 (3)	C13—C14	1.361 (7)
Cr1—O3	1.956 (2)	C13—H13	0.9300
Cr1—O5^i	1.958 (2)	C14—C15	1.374 (6)
Cr1—O1	1.963 (2)	C14—H14	0.9300
Cr1—O5	1.967 (2)	C15—H15	0.9300
Cr1—Cr1^i	3.0216 (13)	C16—C18	1.410 (5)
O1—C1	1.272 (4)	C16—C19	1.496 (5)
O1—O2	2.755 (3)	C17—C18	1.384 (5)
O2—C2	1.271 (4)	C17—C25	1.492 (5)
O3—C16	1.263 (4)	C18—H18	0.9300
O3—O4	2.762 (3)	C19—C24	1.365 (5)
O4—C17	1.265 (4)	C19—C20	1.386 (5)
O5—C31	1.420 (4)	C20—C21	1.372 (6)
O5—O5^i	2.505 (5)	C20—H20	0.9300
C1—C3	1.399 (5)	C21—C22	1.360 (7)
C1—C4	1.496 (5)	C21—H21	0.9300
C2—C3	1.384 (5)	C22—C23	1.370 (7)
C2—C10	1.493 (5)	C22—H22	0.9300
C3—H3	0.9300	C23—C24	1.371 (5)
C4—C5	1.366 (6)	C23—H23	0.9300
C4—C9	1.375 (6)	C24—H24	0.9300
C5—C6	1.379 (6)	C25—C26	1.372 (6)
C5—H5	0.9300	C25—C30	1.370 (6)
C6—C7	1.359 (7)	C26—C27	1.380 (6)
C6—H6	0.9300	C26—H26	0.9300
C7—C8	1.347 (7)	C27—C28	1.362 (7)
C7—H7	0.9300	C27—H27	0.9300
C8—C9	1.395 (6)	C28—C29	1.343 (7)
C8—H8	0.9300	C28—H28	0.9300
C9—H9	0.9300	C29—C30	1.373 (6)
C10—C11	1.363 (6)	C29—H29	0.9300
C10—C15	1.397 (6)	C30—H30	0.9300
C11—C12	1.367 (6)	C31—H31A	0.9600
C11—H11	0.9300	C31—H31B	0.9600
C12—C13	1.377 (7)	C31—H31C	0.9600
O2—Cr1—O4	91.08 (11)	C10—C11—C12	120.7 (4)
O2—Cr1—O3	87.01 (11)	C10—C11—H11	119.6
O4—Cr1—O3	89.86 (10)	C12—C11—H11	119.6
O2—Cr1—O5^i	173.17 (11)	C11—C12—C13	120.0 (5)
O4—Cr1—O5^i	95.63 (11)	C11—C12—H12	120.0
O3—Cr1—O5^i	91.70 (10)	C13—C12—H12	120.0
O2—Cr1—O1	89.67 (10)	C14—C13—C12	120.1 (5)
O4—Cr1—O1	85.04 (10)	C14—C13—H13	120.0
O3—Cr1—O1	173.86 (10)	C12—C13—H13	120.0
O5^i—Cr1—O1	92.19 (10)	C13—C14—C15	120.2 (4)
O2—Cr1—O5	93.97 (11)	C13—C14—H14	119.9
O4—Cr1—O5	174.94 (11)	C15—C14—H14	119.9
O3—Cr1—O5	90.61 (10)	C14—C15—C10	119.7 (5)
O5^i—Cr1—O5	79.32 (11)	C14—C15—H15	120.1
O1—Cr1—O5	94.77 (10)	C10—C15—H15	120.1
O2—Cr1—Cr1^i	133.51 (9)	O3—C16—C18	124.7 (3)
O4—Cr1—Cr1^i	135.39 (9)	O3—C16—C19	115.5 (3)
O3—Cr1—Cr1^i	91.50 (7)	C18—C16—C19	119.7 (3)
O5^i—Cr1—Cr1^i	39.77 (7)	O4—C17—C18	124.6 (4)
O1—Cr1—Cr1^i	94.53 (7)	O4—C17—C25	115.9 (3)
O5—Cr1—Cr1^i	39.55 (7)	C18—C17—C25	119.4 (3)
C1—O1—Cr1	124.6 (2)	C17—C18—C16	124.0 (4)
C1—O1—O2	82.7 (2)	C17—C18—H18	118.0
C2—O2—Cr1	126.9 (3)	C16—C18—H18	118.0
C2—O2—O1	83.9 (2)	C24—C19—C20	118.5 (4)
C16—O3—Cr1	126.2 (2)	C24—C19—C16	119.4 (3)
C16—O3—O4	83.0 (2)	C20—C19—C16	122.1 (4)
Cr1—O3—O4	45.05 (7)	C21—C20—C19	120.5 (4)
C17—O4—Cr1	126.4 (3)	C21—C20—H20	119.7
C17—O4—O3	83.6 (2)	C19—C20—H20	119.7
Cr1—O4—O3	45.09 (7)	C22—C21—C20	120.3 (4)
C31—O5—Cr1^i	122.1 (2)	C22—C21—H21	119.8
C31—O5—Cr1	123.2 (2)	C20—C21—H21	119.8
Cr1^i—O5—Cr1	100.68 (11)	C21—C22—C23	119.5 (4)
C31—O5—O5^i	147.7 (3)	C21—C22—H22	120.2
Cr1^i—O5—O5^i	50.49 (8)	C23—C22—H22	120.2
Cr1—O5—O5^i	50.18 (8)	C22—C23—C24	120.4 (4)
O1—C1—C3	125.1 (3)	C22—C23—H23	119.8
O1—C1—C4	115.7 (3)	C24—C23—H23	119.8
C3—C1—C4	119.2 (3)	C19—C24—C23	120.8 (4)
O2—C2—C3	124.0 (4)	C19—C24—H24	119.6
O2—C2—C10	114.4 (3)	C23—C24—H24	119.6
C3—C2—C10	121.5 (3)	C26—C25—C30	117.5 (4)
C2—C3—C1	124.0 (3)	C26—C25—C17	123.2 (4)
C2—C3—H3	118.0	C30—C25—C17	119.3 (4)
C1—C3—H3	118.0	C25—C26—C27	121.8 (5)
C5—C4—C9	118.7 (4)	C25—C26—H26	119.1
C5—C4—C1	119.1 (4)	C27—C26—H26	119.1
C9—C4—C1	122.2 (4)	C28—C27—C26	118.7 (5)
C4—C5—C6	120.7 (5)	C28—C27—H27	120.6
C4—C5—H5	119.7	C26—C27—H27	120.6
C6—C5—H5	119.7	C29—C28—C27	120.5 (5)
C7—C6—C5	120.1 (5)	C29—C28—H28	119.7
C7—C6—H6	119.9	C27—C28—H28	119.7
C5—C6—H6	119.9	C28—C29—C30	120.6 (5)
C8—C7—C6	120.3 (5)	C28—C29—H29	119.7
C8—C7—H7	119.8	C30—C29—H29	119.7
C6—C7—H7	119.8	C29—C30—C25	120.8 (5)
C7—C8—C9	119.9 (5)	C29—C30—H30	119.6
C7—C8—H8	120.0	C25—C30—H30	119.6
C9—C8—H8	120.0	O5—C31—H31A	109.5
C4—C9—C8	120.2 (5)	O5—C31—H31B	109.5
C4—C9—H9	119.9	H31A—C31—H31B	109.5
C8—C9—H9	119.9	O5—C31—H31C	109.5
C11—C10—C15	119.2 (4)	H31A—C31—H31C	109.5
C11—C10—C2	118.8 (4)	H31B—C31—H31C	109.5
C15—C10—C2	121.9 (4)
O2—Cr1—O1—C1	−24.3 (3)	C10—C2—C3—C1	174.9 (4)
O4—Cr1—O1—C1	66.8 (3)	O1—C1—C3—C2	3.4 (6)
O5^i—Cr1—O1—C1	162.2 (3)	C4—C1—C3—C2	−177.7 (4)
O5—Cr1—O1—C1	−118.3 (3)	O1—C1—C4—C5	34.5 (5)
Cr1^i—Cr1—O1—C1	−158.0 (3)	C3—C1—C4—C5	−144.5 (4)
O4—Cr1—O1—O2	91.12 (11)	O1—C1—C4—C9	−145.5 (4)
O5^i—Cr1—O1—O2	−173.42 (11)	C3—C1—C4—C9	35.5 (6)
O5—Cr1—O1—O2	−93.96 (11)	C9—C4—C5—C6	−0.5 (7)
Cr1^i—Cr1—O1—O2	−133.65 (9)	C1—C4—C5—C6	179.5 (4)
O4—Cr1—O2—C2	−62.9 (3)	C4—C5—C6—C7	1.0 (8)
O3—Cr1—O2—C2	−152.7 (3)	C5—C6—C7—C8	0.1 (8)
O1—Cr1—O2—C2	22.1 (3)	C6—C7—C8—C9	−1.7 (8)
O5—Cr1—O2—C2	116.9 (3)	C5—C4—C9—C8	−1.1 (7)
Cr1^i—Cr1—O2—C2	118.1 (3)	C1—C4—C9—C8	178.9 (4)
O4—Cr1—O2—O1	−85.03 (10)	C7—C8—C9—C4	2.2 (8)
O3—Cr1—O2—O1	−174.83 (10)	O2—C2—C10—C11	−26.4 (5)
O5—Cr1—O2—O1	94.76 (10)	C3—C2—C10—C11	152.3 (4)
Cr1^i—Cr1—O2—O1	95.94 (11)	O2—C2—C10—C15	151.7 (4)
C1—O1—O2—C2	−2.4 (3)	C3—C2—C10—C15	−29.6 (6)
Cr1—O1—O2—C2	−162.4 (2)	C15—C10—C11—C12	1.0 (7)
C1—O1—O2—Cr1	160.0 (2)	C2—C10—C11—C12	179.2 (5)
O2—Cr1—O3—C16	71.7 (3)	C10—C11—C12—C13	−2.1 (9)
O4—Cr1—O3—C16	−19.4 (3)	C11—C12—C13—C14	2.0 (9)
O5^i—Cr1—O3—C16	−115.0 (3)	C12—C13—C14—C15	−0.9 (8)
O5—Cr1—O3—C16	165.7 (3)	C13—C14—C15—C10	−0.2 (7)
Cr1^i—Cr1—O3—C16	−154.8 (3)	C11—C10—C15—C14	0.1 (6)
O2—Cr1—O3—O4	91.09 (11)	C2—C10—C15—C14	−178.0 (4)
O5^i—Cr1—O3—O4	−95.63 (11)	Cr1—O3—C16—C18	10.6 (5)
O5—Cr1—O3—O4	−174.96 (11)	O4—O3—C16—C18	−3.1 (4)
Cr1^i—Cr1—O3—O4	−135.41 (9)	Cr1—O3—C16—C19	−172.2 (2)
O2—Cr1—O4—C17	−65.7 (3)	O4—O3—C16—C19	174.1 (3)
O3—Cr1—O4—C17	21.3 (3)	Cr1—O4—C17—C18	−14.4 (6)
O5^i—Cr1—O4—C17	113.0 (3)	O3—O4—C17—C18	0.6 (4)
O1—Cr1—O4—C17	−155.2 (3)	Cr1—O4—C17—C25	168.6 (2)
Cr1^i—Cr1—O4—C17	113.3 (3)	O3—O4—C17—C25	−176.4 (3)
O2—Cr1—O4—O3	−87.01 (10)	O4—C17—C18—C16	−2.9 (7)
O5^i—Cr1—O4—O3	91.70 (10)	C25—C17—C18—C16	174.0 (4)
O1—Cr1—O4—O3	−176.59 (11)	O3—C16—C18—C17	4.9 (7)
Cr1^i—Cr1—O4—O3	91.99 (11)	C19—C16—C18—C17	−172.2 (4)
C16—O3—O4—C17	1.5 (3)	O3—C16—C19—C24	−16.6 (5)
Cr1—O3—O4—C17	−162.9 (3)	C18—C16—C19—C24	160.8 (4)
C16—O3—O4—Cr1	164.4 (2)	O3—C16—C19—C20	163.7 (4)
O2—Cr1—O5—C31	38.4 (3)	C18—C16—C19—C20	−19.0 (6)
O3—Cr1—O5—C31	−48.7 (3)	C24—C19—C20—C21	−1.8 (7)
O5^i—Cr1—O5—C31	−140.3 (3)	C16—C19—C20—C21	177.9 (4)
O1—Cr1—O5—C31	128.4 (3)	C19—C20—C21—C22	0.2 (8)
Cr1^i—Cr1—O5—C31	−140.3 (3)	C20—C21—C22—C23	0.1 (8)
O2—Cr1—O5—Cr1^i	178.66 (11)	C21—C22—C23—C24	1.2 (8)
O3—Cr1—O5—Cr1^i	91.62 (11)	C20—C19—C24—C23	3.1 (6)
O5^i—Cr1—O5—Cr1^i	0.0	C16—C19—C24—C23	−176.6 (4)
O1—Cr1—O5—Cr1^i	−91.33 (11)	C22—C23—C24—C19	−2.8 (7)
O2—Cr1—O5—O5^i	178.66 (11)	O4—C17—C25—C26	−163.0 (4)
O3—Cr1—O5—O5^i	91.62 (11)	C18—C17—C25—C26	19.8 (6)
O1—Cr1—O5—O5^i	−91.33 (11)	O4—C17—C25—C30	17.3 (6)
Cr1^i—Cr1—O5—O5^i	0.0	C18—C17—C25—C30	−159.8 (4)
Cr1—O1—C1—C3	16.7 (5)	C30—C25—C26—C27	1.5 (7)
O2—O1—C1—C3	−0.4 (4)	C17—C25—C26—C27	−178.1 (4)
Cr1—O1—C1—C4	−162.3 (2)	C25—C26—C27—C28	−0.6 (8)
O2—O1—C1—C4	−179.3 (3)	C26—C27—C28—C29	0.1 (9)
Cr1—O2—C2—C3	−11.3 (5)	C27—C28—C29—C30	−0.5 (9)
O1—O2—C2—C3	4.4 (4)	C28—C29—C30—C25	1.5 (9)
Cr1—O2—C2—C10	167.3 (2)	C26—C25—C30—C29	−1.9 (7)
O1—O2—C2—C10	−177.0 (3)	C17—C25—C30—C29	177.7 (5)
O2—C2—C3—C1	−6.6 (6)

Symmetry code: (i) −x, −y+1, −z+1.