cis-[1,3-Bis­(di­phenyl­phosphino)­propane]­dibromo­platinum(II)

In the title compound, [PtBr₂(C₂₇H₂₆P₂)], the mol­ecule adopts a distorted square-planar metal coordination, with the six-membered metallocyclic ring in a twist-boat conformation.

Key indicators

• Single-crystal X-ray study
• T = 168 K
• Mean [sigma](C-C) = 0.014 Å
• R factor = 0.046
• wR factor = 0.114
• Data-to-parameter ratio = 17.7

checkCIF results

No syntax errors found

ADDSYM reports no extra symmetry

General Notes



ABSTM_02  When printed, the submitted absorption T values will be replaced
          by the scaled T values. Since the ratio of scaled T's is
          identical to the ratio of reported T values, the scaling does
          not imply a change to the absorption corrections used in the
          study.
          Ratio of Tmax expected/reported      0.072
          Tmax scaled      0.072 Tmin scaled      0.046

---

S1. Comment

The title compound, cis-[PtBr₂(dppp)₂], (I), [dppp is 1,3-bis(diphenylphosphino)propane] was prepared, unexpectedly, from the reaction between the corresponding trifluoromethylsulfonate complex cis-[Pt(CF₃SO₃)₂(dppp)] with Re(CO)₃(DAAD)₂Br (DAAD is 2,6-diazaanthracene-9,10-dione; Morgan et al., 2002). The molecular structure of cis-[PtBr₂(dppp)] has the Pt atom in a slightly distorted square-planar environment (Fig. 1). The two bromo ligands are in a cis configuration, imposed by the chelating dppp ligand. This is similar to the structures found for the chloro analogue cis-[PtCl₂(dppp)], (II) (Robertson & Wickramasinghe, 1987), and the isomorphous palladium complex cis-[PdCl₂(dppp)], (III) (Steffen & Palenik, 1976).

Distortion in the square-planar Pt coordination sphere is signalled by angles about Pt ranging from 88.12 (4) to 91.95 (6)°. (Table 1). The r.m.s. deviation from the Br₂PtP₂ plane is 0.089 Å, with P2 showing the largest deviation of 0.1133 (8) Å. The angle between the PtP₂ and PtBr₂ planes is 8.01 (5)°. Similar distortions were found in (II) (Robertson et al., 1987) and have been attributed to steric strain within the chelating ligand (Steffen et al., 1976). This is further indicated by the significant variations from tetrahedral angles observed in the alkyl chain of the dppp moiety. Torsion angles around the six-membered Pt—P—C—C—C—P chelate ring are consistent with a twist-boat conformation.

Relatively few structures of square planar Pt^II complexes with a PtBr₂P₂ ligand set have been reported. The data suggest that Pt—Br bond lengths trans to the P atoms of bidentate phosphine ligands are generally longer than those in cis-PtBr₂(monodentate phosphine)₂ structures (Sembiring et al., 1999; Bhattacharyya et al., 1996) or for trans-[PtBr₂P₂] complexes (Messmer & Amma, 1966; Cameron et al., 1990). The Pt—Br and Pt—P bond lengths observed for (I) are within the anticipated ranges (Orpen et al., 1989). Furthermore, the Pt—P distances are identical within experimental error, while the Pt—Br distances differ [2.4951 (9) and 2.4855 (10) Å], mirroring the bond-length variations observed in (II) (Robertson et al., 1987) and (III) (Steffen et al., 1976). The Pt—Br distances observed for (I) are also similar to those found for the previously reported cis-PtBr₂(bidentate phosphine) structures (Wilson et al., 1994; Sevillano et al., 2000).

Molecules of (I) are reasonably well separated in the unit cell, with the shortest intermolecular contact not involving H atoms being for C6···C24ⁱ of 3.4765 (9) Å [symmetry code: (i) x, y − 1, z]. The shortest contact involving the Br atoms is H8···Br2ⁱⁱ [H8···Br2ⁱⁱ 2.875 (1), C8···Br2 3.770 (1) Å and C8—H8···Br2 157.5 (2)°; symmetry code: (ii) x + 1, y − 1, z].

S2. Experimental

Re(CO)₃(DAAD)₂Br (115 mg, 0.15 mmol) and cis-[Pt(CF₃SO₃)₂(dppp)] (135 mg, 0.15 mmol) were dissolved in dichloromethane (30 ml). The solution was stirred for 20 h at ambient temperature. The orange precipitate was filtered off and washed with dichloromethane, hexane, diethyl ether and ethyl acetate. Crystallization was achieved in d₆-DMSO over a period of months at ambient temperature.

S3. Refinement

The final difference Fourier map revealed large residual density peaks around the Pt atom. Inspection of the absorption correction data showed a significant decrease in R_int (from 0.0972 to 0.0331) following the correction. It is possible, however, that selection of a smaller crystal and/or application of numerical absorption corrections may have resulted in better residual density values. All H atoms were included in calculated positions using a riding model, with Csp²—H and Csp³—H bond distances of 0.95 and 0.99 Å, respectively, and U_iso values equal to 1.2U_eq of the carrying C atoms.

Computing details

Data collection: SMART (Bruker, 1997); cell refinement: SMART; data reduction: SAINT (Bruker, 1997); program(s) used to solve structure: SHELXS97 (Sheldrick, 1997) and TITAN2000 (Hunter & Simpson, 1999); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997) and TITAN2000); molecular graphics: ORTEP-3 (Farrugia, 1997); software used to prepare material for publication: SHELXL97.

Figures

Fig. 1. Perspective drawing of the title molecule, showing the atom-numbering scheme and displacement ellipsoids drawn at the 50% probability level. H atoms are drawn as circles with arbitrary radii.

cis-[1,3-Bis(diphenylphosphino)propane]dibromoplatinum(II)

Crystal data

[PtBr2(C27H26P2)]	Z = 2
Mr = 767.33	F(000) = 732
Triclinic, P1	Dx = 1.994 Mg m^−3
Hall symbol: -P 1	Mo Kα radiation, λ = 0.71073 Å
a = 8.709 (2) Å	Cell parameters from 5652 reflections
b = 10.760 (3) Å	θ = 4.9–52.7°
c = 14.429 (4) Å	µ = 8.76 mm^−1
α = 88.272 (3)°	T = 168 K
β = 80.296 (4)°	Block, pale brown
γ = 73.540 (3)°	0.51 × 0.33 × 0.30 mm
V = 1278.0 (6) Å^3

Data collection

Siemens SMART diffractometer	5118 independent reflections
Radiation source: fine-focus sealed tube	4792 reflections with I > 2σ(I)
Graphite monochromator	Rint = 0.036
Area–detector ω scans	θmax = 26.4°, θmin = 2.4°
Absorption correction: empirical (using intensity measurements) (SADABS; Bruker 1997)	h = −10→10
Tmin = 0.641, Tmax = 1	k = −10→13
15666 measured reflections	l = −17→17

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)] = 0.046	Hydrogen site location: inferred from neighbouring sites
wR(F^2) = 0.114	H-atom parameters constrained
S = 1.23	w = 1/[σ^2(Fo^2) + (0.0571P)^2 + 9.6036P] where P = (Fo^2 + 2Fc^2)/3
5118 reflections	(Δ/σ)max = 0.007
289 parameters	Δρmax = 2.38 e Å^−3
36 restraints	Δρmin = −4.26 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
Br1	−0.04852 (10)	0.17292 (8)	0.77096 (6)	0.02293 (19)
Br2	−0.16107 (10)	0.50253 (8)	0.72957 (7)	0.0302 (2)
Pt1	0.10137 (3)	0.34041 (2)	0.743254 (18)	0.01006 (10)
P1	0.3214 (2)	0.19242 (18)	0.77836 (14)	0.0137 (4)
C1	0.5077 (10)	0.2460 (8)	0.7658 (6)	0.0237 (18)
H1A	0.4923	0.3154	0.8129	0.028*
H1B	0.5996	0.1724	0.7782	0.028*
C2	0.5481 (10)	0.2965 (8)	0.6671 (7)	0.0280 (19)
H2A	0.5389	0.2338	0.6210	0.034*
H2B	0.6630	0.2977	0.6570	0.034*
C3	0.4433 (10)	0.4323 (8)	0.6450 (6)	0.0223 (17)
H3A	0.4326	0.4329	0.5778	0.027*
H3B	0.5028	0.4958	0.6538	0.027*
C4	0.3920 (10)	0.0441 (8)	0.7085 (6)	0.0231 (17)
C5	0.3284 (10)	0.0323 (8)	0.6265 (6)	0.0248 (18)
H5	0.2437	0.1013	0.6087	0.030*
C6	0.3905 (13)	−0.0814 (11)	0.5715 (8)	0.042 (3)
H6	0.3461	−0.0899	0.5170	0.050*
C7	0.5141 (14)	−0.1800 (10)	0.5953 (8)	0.042 (3)
H7	0.5553	−0.2569	0.5576	0.051*
C8	0.5791 (14)	−0.1682 (9)	0.6740 (9)	0.047 (3)
H8	0.6665	−0.2368	0.6893	0.057*
C9	0.5196 (12)	−0.0578 (9)	0.7314 (7)	0.035 (2)
H9	0.5653	−0.0516	0.7858	0.042*
C10	0.2856 (9)	0.1458 (7)	0.9005 (5)	0.0166 (15)
C11	0.2369 (11)	0.0340 (9)	0.9257 (6)	0.0273 (19)
H11	0.2314	−0.0232	0.8783	0.033*
C12	0.1966 (13)	0.0068 (10)	1.0201 (7)	0.035 (2)
H12	0.1644	−0.0693	1.0368	0.042*
C13	0.2029 (12)	0.0891 (10)	1.0893 (7)	0.035 (2)
H13	0.1735	0.0704	1.1535	0.042*
C14	0.2515 (13)	0.1983 (11)	1.0664 (7)	0.039 (2)
H14	0.2570	0.2542	1.1146	0.047*
C15	0.2934 (12)	0.2274 (10)	0.9711 (6)	0.032 (2)
H15	0.3271	0.3031	0.9553	0.038*
P2	0.2371 (2)	0.48954 (18)	0.71495 (14)	0.0145 (4)
C16	0.2601 (11)	0.5585 (9)	0.8246 (6)	0.0257 (15)
C17	0.1330 (12)	0.5758 (11)	0.9011 (7)	0.0352 (16)
H17	0.0365	0.5547	0.8946	0.042*
C18	0.1480 (13)	0.6237 (11)	0.9868 (7)	0.0406 (18)
H18	0.0610	0.6354	1.0382	0.049*
C19	0.2844 (13)	0.6536 (12)	0.9976 (8)	0.0435 (18)
H19	0.2927	0.6883	1.0558	0.052*
C20	0.4125 (14)	0.6331 (13)	0.9228 (8)	0.0499 (19)
H20	0.5112	0.6495	0.9306	0.060*
C21	0.3971 (13)	0.5889 (12)	0.8372 (8)	0.0424 (18)
H21	0.4837	0.5795	0.7858	0.051*
C22	0.1452 (10)	0.6275 (8)	0.6461 (6)	0.0196 (16)
C23	0.0915 (11)	0.7521 (8)	0.6832 (6)	0.0241 (17)
H23	0.1050	0.7685	0.7452	0.029*
C24	0.0167 (12)	0.8544 (8)	0.6284 (7)	0.031 (2)
H24	−0.0202	0.9404	0.6534	0.037*
C25	−0.0031 (12)	0.8303 (9)	0.5388 (7)	0.032 (2)
H25	−0.0536	0.9000	0.5022	0.038*
C26	0.0495 (12)	0.7060 (9)	0.5014 (6)	0.031 (2)
H26	0.0348	0.6899	0.4396	0.038*
C27	0.1240 (12)	0.6048 (9)	0.5551 (6)	0.0272 (19)
H27	0.1610	0.5191	0.5295	0.033*

Atomic displacement parameters (Ų)

	U^11	U^22	U^33	U^12	U^13	U^23
Br1	0.0207 (4)	0.0228 (4)	0.0287 (4)	−0.0120 (3)	−0.0043 (3)	0.0052 (3)
Br2	0.0167 (4)	0.0233 (4)	0.0484 (6)	−0.0015 (3)	−0.0070 (4)	0.0037 (4)
Pt1	0.00866 (15)	0.01236 (15)	0.01000 (15)	−0.00438 (10)	−0.00185 (10)	0.00229 (10)
P1	0.0088 (8)	0.0150 (9)	0.0162 (9)	−0.0017 (7)	−0.0022 (7)	0.0039 (7)
C1	0.013 (4)	0.030 (4)	0.031 (5)	−0.009 (3)	−0.007 (3)	0.006 (4)
C2	0.018 (4)	0.027 (4)	0.034 (5)	−0.004 (3)	0.005 (4)	0.003 (4)
C3	0.021 (4)	0.029 (4)	0.017 (4)	−0.009 (3)	−0.001 (3)	0.003 (3)
C4	0.027 (4)	0.018 (4)	0.020 (4)	−0.005 (3)	0.006 (3)	0.003 (3)
C5	0.019 (4)	0.028 (4)	0.026 (4)	−0.004 (3)	0.000 (3)	−0.008 (4)
C6	0.035 (6)	0.046 (6)	0.040 (6)	−0.010 (5)	0.003 (5)	−0.024 (5)
C7	0.051 (7)	0.028 (5)	0.042 (6)	−0.010 (5)	0.008 (5)	−0.012 (4)
C8	0.044 (6)	0.018 (4)	0.064 (8)	0.008 (4)	0.004 (6)	0.011 (5)
C9	0.032 (5)	0.032 (5)	0.034 (5)	0.005 (4)	−0.009 (4)	0.005 (4)
C10	0.016 (4)	0.019 (4)	0.014 (4)	−0.002 (3)	−0.008 (3)	0.006 (3)
C11	0.029 (5)	0.027 (4)	0.028 (5)	−0.012 (4)	−0.006 (4)	0.003 (4)
C12	0.041 (6)	0.040 (5)	0.026 (5)	−0.017 (4)	−0.008 (4)	0.019 (4)
C13	0.034 (5)	0.050 (6)	0.022 (5)	−0.013 (4)	−0.009 (4)	0.016 (4)
C14	0.045 (6)	0.058 (6)	0.016 (4)	−0.017 (5)	−0.004 (4)	−0.001 (4)
C15	0.041 (5)	0.042 (5)	0.020 (4)	−0.024 (4)	−0.008 (4)	0.005 (4)
P2	0.0167 (9)	0.0142 (9)	0.0147 (9)	−0.0085 (7)	−0.0018 (7)	0.0026 (7)
C16	0.024 (3)	0.044 (4)	0.018 (3)	−0.022 (3)	−0.002 (3)	−0.005 (3)
C17	0.029 (3)	0.056 (4)	0.026 (3)	−0.024 (3)	0.001 (3)	−0.008 (3)
C18	0.037 (3)	0.061 (4)	0.028 (3)	−0.022 (3)	0.002 (3)	−0.010 (3)
C19	0.040 (4)	0.066 (4)	0.030 (3)	−0.020 (3)	−0.007 (3)	−0.016 (3)
C20	0.039 (4)	0.077 (4)	0.041 (4)	−0.027 (3)	−0.004 (3)	−0.018 (4)
C21	0.032 (3)	0.067 (4)	0.035 (4)	−0.027 (3)	0.001 (3)	−0.013 (3)
C22	0.022 (4)	0.023 (4)	0.018 (4)	−0.012 (3)	−0.003 (3)	0.007 (3)
C23	0.032 (5)	0.021 (4)	0.022 (4)	−0.008 (3)	−0.012 (4)	0.003 (3)
C24	0.044 (5)	0.017 (4)	0.033 (5)	−0.009 (4)	−0.015 (4)	0.007 (4)
C25	0.037 (5)	0.029 (5)	0.036 (5)	−0.015 (4)	−0.021 (4)	0.020 (4)
C26	0.045 (6)	0.037 (5)	0.020 (4)	−0.020 (4)	−0.016 (4)	0.012 (4)
C27	0.038 (5)	0.027 (4)	0.019 (4)	−0.012 (4)	−0.008 (4)	0.004 (3)

Geometric parameters (Å, º)

Br1—Pt1	2.4951 (9)	C12—C13	1.373 (15)
Br2—Pt1	2.4855 (10)	C12—H12	0.9500
Pt1—P2	2.2384 (19)	C13—C14	1.370 (15)
Pt1—P1	2.2394 (19)	C13—H13	0.9500
P1—C4	1.809 (8)	C14—C15	1.411 (13)
P1—C10	1.818 (8)	C14—H14	0.9500
P1—C1	1.850 (8)	C15—H15	0.9500
C1—C2	1.530 (12)	P2—C22	1.827 (8)
C1—H1A	0.9900	P2—C16	1.832 (8)
C1—H1B	0.9900	C16—C21	1.364 (13)
C2—C3	1.544 (12)	C16—C17	1.401 (12)
C2—H2A	0.9900	C17—C18	1.393 (14)
C2—H2B	0.9900	C17—H17	0.9500
C3—P2	1.850 (8)	C18—C19	1.351 (15)
C3—H3A	0.9900	C18—H18	0.9500
C3—H3B	0.9900	C19—C20	1.389 (15)
C4—C9	1.400 (12)	C19—H19	0.9500
C4—C5	1.412 (12)	C20—C21	1.377 (15)
C5—C6	1.399 (12)	C20—H20	0.9500
C5—H5	0.9500	C21—H21	0.9500
C6—C7	1.363 (16)	C22—C23	1.381 (12)
C6—H6	0.9500	C22—C27	1.394 (12)
C7—C8	1.376 (17)	C23—C24	1.406 (12)
C7—H7	0.9500	C23—H23	0.9500
C8—C9	1.390 (15)	C24—C25	1.375 (13)
C8—H8	0.9500	C24—H24	0.9500
C9—H9	0.9500	C25—C26	1.379 (14)
C10—C15	1.387 (12)	C25—H25	0.9500
C10—C11	1.403 (11)	C26—C27	1.387 (12)
C11—C12	1.392 (13)	C26—H26	0.9500
C11—H11	0.9500	C27—H27	0.9500
P2—Pt1—P1	91.67 (7)	C13—C12—C11	120.5 (9)
P2—Pt1—Br2	91.95 (6)	C13—C12—H12	119.8
P1—Pt1—Br2	171.34 (5)	C11—C12—H12	119.8
P2—Pt1—Br1	178.72 (5)	C14—C13—C12	120.4 (9)
P1—Pt1—Br1	88.45 (6)	C14—C13—H13	119.8
Br2—Pt1—Br1	88.12 (4)	C12—C13—H13	119.8
C4—P1—C10	106.7 (4)	C13—C14—C15	120.0 (9)
C4—P1—C1	101.7 (4)	C13—C14—H14	120.0
C10—P1—C1	105.0 (4)	C15—C14—H14	120.0
C4—P1—Pt1	116.6 (3)	C10—C15—C14	120.2 (9)
C10—P1—Pt1	110.3 (2)	C10—C15—H15	119.9
C1—P1—Pt1	115.4 (3)	C14—C15—H15	119.9
C2—C1—P1	111.1 (6)	C22—P2—C16	105.9 (4)
C2—C1—H1A	109.4	C22—P2—C3	101.0 (4)
P1—C1—H1A	109.4	C16—P2—C3	106.4 (4)
C2—C1—H1B	109.4	C22—P2—Pt1	115.6 (3)
P1—C1—H1B	109.4	C16—P2—Pt1	111.3 (3)
H1A—C1—H1B	108.0	C3—P2—Pt1	115.6 (3)
C1—C2—C3	116.8 (7)	C21—C16—C17	118.0 (8)
C1—C2—H2A	108.1	C21—C16—P2	123.6 (7)
C3—C2—H2A	108.1	C17—C16—P2	118.3 (6)
C1—C2—H2B	108.1	C18—C17—C16	120.1 (9)
C3—C2—H2B	108.1	C18—C17—H17	119.9
H2A—C2—H2B	107.3	C16—C17—H17	119.9
C2—C3—P2	117.0 (6)	C19—C18—C17	120.9 (10)
C2—C3—H3A	108.1	C19—C18—H18	119.5
P2—C3—H3A	108.1	C17—C18—H18	119.5
C2—C3—H3B	108.1	C18—C19—C20	119.2 (10)
P2—C3—H3B	108.1	C18—C19—H19	120.4
H3A—C3—H3B	107.3	C20—C19—H19	120.4
C9—C4—C5	118.7 (8)	C21—C20—C19	120.3 (10)
C9—C4—P1	120.1 (7)	C21—C20—H20	119.9
C5—C4—P1	121.0 (6)	C19—C20—H20	119.9
C6—C5—C4	119.8 (9)	C16—C21—C20	121.5 (10)
C6—C5—H5	120.1	C16—C21—H21	119.3
C4—C5—H5	120.1	C20—C21—H21	119.3
C7—C6—C5	120.6 (10)	C23—C22—C27	119.7 (8)
C7—C6—H6	119.7	C23—C22—P2	121.6 (6)
C5—C6—H6	119.7	C27—C22—P2	118.7 (6)
C6—C7—C8	120.0 (9)	C22—C23—C24	119.4 (8)
C6—C7—H7	120.0	C22—C23—H23	120.3
C8—C7—H7	120.0	C24—C23—H23	120.3
C7—C8—C9	121.3 (10)	C25—C24—C23	120.2 (8)
C7—C8—H8	119.3	C25—C24—H24	119.9
C9—C8—H8	119.3	C23—C24—H24	119.9
C8—C9—C4	119.5 (10)	C24—C25—C26	120.7 (8)
C8—C9—H9	120.2	C24—C25—H25	119.6
C4—C9—H9	120.2	C26—C25—H25	119.6
C15—C10—C11	118.8 (8)	C25—C26—C27	119.3 (8)
C15—C10—P1	119.5 (6)	C25—C26—H26	120.3
C11—C10—P1	121.4 (6)	C27—C26—H26	120.3
C12—C11—C10	120.1 (8)	C26—C27—C22	120.7 (8)
C12—C11—H11	119.9	C26—C27—H27	119.6
C10—C11—H11	119.9	C22—C27—H27	119.6
P2—Pt1—P1—C4	−121.6 (3)	C13—C14—C15—C10	0.0 (16)
Br1—Pt1—P1—C4	57.1 (3)	C2—C3—P2—C22	−166.0 (7)
P2—Pt1—P1—C10	116.4 (3)	C2—C3—P2—C16	83.7 (7)
Br1—Pt1—P1—C10	−64.8 (3)	C2—C3—P2—Pt1	−40.5 (7)
P2—Pt1—P1—C1	−2.3 (3)	P1—Pt1—P2—C22	161.7 (3)
Br1—Pt1—P1—C1	176.4 (3)	P1—Pt1—P2—C16	−77.5 (3)
C4—P1—C1—C2	72.3 (7)	Br2—Pt1—P2—C16	94.6 (3)
C10—P1—C1—C2	−176.5 (6)	P1—Pt1—P2—C3	44.0 (3)
Pt1—P1—C1—C2	−54.9 (7)	Br2—Pt1—P2—C3	−143.9 (3)
P1—C1—C2—C3	75.5 (9)	C22—P2—C16—C21	−92.0 (10)
C1—C2—C3—P2	−24.7 (10)	C3—P2—C16—C21	14.8 (11)
C10—P1—C4—C9	−50.5 (8)	Pt1—P2—C16—C21	141.6 (9)
C1—P1—C4—C9	59.3 (8)	C22—P2—C16—C17	90.9 (9)
Pt1—P1—C4—C9	−174.3 (7)	C3—P2—C16—C17	−162.3 (8)
C10—P1—C4—C5	134.2 (7)	Pt1—P2—C16—C17	−35.5 (9)
C1—P1—C4—C5	−116.0 (7)	C21—C16—C17—C18	0.5 (17)
Pt1—P1—C4—C5	10.4 (8)	P2—C16—C17—C18	177.8 (9)
C9—C4—C5—C6	1.7 (13)	C16—C17—C18—C19	−0.3 (18)
P1—C4—C5—C6	177.1 (7)	C17—C18—C19—C20	−1.6 (19)
C4—C5—C6—C7	−1.3 (15)	C18—C19—C20—C21	3 (2)
C5—C6—C7—C8	−0.1 (17)	C17—C16—C21—C20	1.2 (18)
C6—C7—C8—C9	1.1 (17)	P2—C16—C21—C20	−175.9 (10)
C7—C8—C9—C4	−0.6 (17)	C19—C20—C21—C16	−3 (2)
C5—C4—C9—C8	−0.8 (14)	C16—P2—C22—C23	−7.0 (8)
P1—C4—C9—C8	−176.2 (8)	C3—P2—C22—C23	−117.8 (7)
C4—P1—C10—C15	154.6 (7)	Pt1—P2—C22—C23	116.7 (7)
C1—P1—C10—C15	47.2 (8)	C16—P2—C22—C27	175.3 (7)
Pt1—P1—C10—C15	−77.8 (7)	C3—P2—C22—C27	64.6 (7)
C4—P1—C10—C11	−30.7 (8)	Pt1—P2—C22—C27	−61.0 (7)
C1—P1—C10—C11	−138.1 (7)	C27—C22—C23—C24	−0.2 (13)
Pt1—P1—C10—C11	96.9 (7)	P2—C22—C23—C24	−177.9 (7)
C15—C10—C11—C12	0.4 (13)	C22—C23—C24—C25	0.2 (14)
P1—C10—C11—C12	−174.4 (7)	C23—C24—C25—C26	0.1 (15)
C10—C11—C12—C13	0.4 (15)	C24—C25—C26—C27	−0.4 (15)
C11—C12—C13—C14	−1.0 (16)	C25—C26—C27—C22	0.4 (15)
C12—C13—C14—C15	0.8 (16)	C23—C22—C27—C26	0.0 (13)
C11—C10—C15—C14	−0.6 (14)	P2—C22—C27—C26	177.7 (7)
P1—C10—C15—C14	174.3 (8)