[Bis­(di­phenyl­phosphino)­methane][1,3-bis­(di­phenyl­phosphino)­propane]­platinum(II) dibromide

The asymmetric unit of the title compound, [Pt(C₂₅H₂₂P₂)(C₂₇H₂₆P₂)]Br₂ or [Pt(dppm)(dppp)]Br₂, where dppm is bis­(di­phenyl­phosphino)­methane and dppp is 1,3-bis­(di­phenyl­phosphino)­propane, consists of a discrete [Pt(dppm)(dppp)]²⁺ cation and two Br^- anions at van der Waals distances. This is the first reported platinum(II) complex containing both dppm and dppp ligands. Noticeable features are that the coordination of platinum by the differing dppm and dppp ligands produces a distorted coordination geometry with differing ligand bite angles (and to a lesser extent bond distances), and that the strain induced by the formation of the four-membered dppm chelate ring has a marked effect upon the bond angles at the P atoms of this ligand.

S1. Comment

Owing to their application as catalysts, transition metal complexes with diphosphine ligands have been the subject of several investigations, as these ligands give rise to a variety of interesting species, the structures of which are a function of the ligand and of the method of preparation (Ahter et al., 2000). There is also considerable current interest in exploiting the coordinative capabilities of phosphorus-donor ligands in order to facilitate the synthesis of platinum(II) complexes (Ferguson et al., 2001; Lobana et al., 2000). However, the best-defined systems involve only a limited number of diphosphine ligands, i.e. dppm [bis(diphenylphosphino)methane], dppe [bis(diphenylphosphino)ethane] and dppp [bis(diphenylphosphino)propane] (Lobana et al., 1998; Azam et al., 1999). The interest in such compounds is greatly enhanced by the variety of possible coordination modes of the diphosphine ligands (monodentate, bidentate by chelation or acting as a bridge). A limited number of platinum(II) complexes containing mixed diphosphine ligands (Irisli et al., 1997) are known and we now report the first example of a crystal structure analysis of a platinum(II) complex containing dppm and dppp ligands simultaneously.

The asymmetric unit of the title compound, (I) consists of a discrete [Pt(dppm)(dppp)]²⁺ cation and two Br^- anions (Fig. 1 and Table 1). The shortest Pt···Br distances are Pt···Br1 and Pt···Br2 at 4.991 (2) and 3.990 (3) Å, respectively, the shorter of which would make the Pt atom five-coordinate. Other short contacts involving Br are given in Table 2.

The most striking feature of the cationic platinum(II) complex of (I) is the simultaneous presence of the six- and four-membered chelate rings formed by the dppp and dppm ligands, respectively. Neither chelate ring is planar. The six-membered dppp chelate ring has a chair conformation, with Pt—P1—C1—C2 and Pt—P2—C3—C2 torsion angles of 59.0 (16) and -59.5 (13)°, respectively, and with the Pt and C2 atoms located 0.98 (1) Å above and -0.72 (2) Å below the plane defined by by P1, P2, C1 and C3. The Pt, P3, C4 and P4 atoms of the four-membered dppm chelate ring are situated at the apices of a flattened tetrahedron, with displacements from the least-squares plane so defined of -0.180 (5), 0.236 (6), -0.295 (6) and 0.240 (6) Å, respectively.

In (I), the Pt atom is coordinated by the four P atoms of the two diphosphine ligands in a distorted square-planar arrangement, with trans P1—Pt—P3 and P2—Pt—P4 angles of 169.48 (14) and 167.79 (14)°, respectively, and diphosphine ligand bite angles, P1—Pt—P2 for dppp and P3—Pt—P4 for dppm, of 89.88 (14) and 69.84 (14)°, respectively. The distortion of the coordination plane defined by atoms P1, P2, P3 and P4 is also shown by their displacements [-0.018 (2), 0.018 (2), -0.022 (2) and 0.022 (2) Å, respectively] from the mean plane. The Pt atom lies within -0.107 (2) Å of this plane.

The Pt—P bond distances [2.322 (4)–2.337 (4) Å, with an average of 2.330 Å] are in good agreement with the mean Pt—P distances (2.340 Å) observed in the [(dppe)Pt(PPh₃)(CHNMe₂)]²⁺ complex (Ferguson et al., 2001), but longer than the average value (2.263 Å) found in cis-[1,2-bis(diphenylphosphino)ethane]bis(pyridine-2-thiolato)platinum(II) (Lobana et al., 2000). However, in (I), the shortness of the mean Pt—P distance for dppp (2.323 Å) compared with that for dppm (2.337 Å) may be noted along with with the difference in ligand bite angles noted above.

In comparing the ligands themselves as they occur in (I), the bond distances other than the Pt—P bond lengths commented upon above are in no way unusual. Thus, for example, the P—C distances in the present complex lie in the range 1.794 (14)–1.859 (16) Å, with a mean of 1.821 Å, and are in good agreement with the values reported for P—C distances in dppm and dppp ligands in other complexes (Lobana et al., 1998; Azam et al., 1999). Likewise, the dimensions of the phenyl rings are as expected and do not show any significant features of special interest. Significant differences between the dppp and dppm ligands are observed, however, in the bond angles atthe P and methylene C atoms. For dppp, the situation is comparatively normal, with intra-ring angles at the P and C atoms in the range 114.2 (11)–115.4 (12)° (excluding the ligand bite angle), and Pt—P—C and C—P—C angles in the ranges 111.2 (5)–115.2 (5) and 102.2 (7)–107.2 (8)°, respectively. In contrast, for dppm, while the C—P—C angles lie in a comparable range of 104.2 (7)–108.9 (7)°, the intra-ring and other Pt—P—C angles are very different. Here, the intra-ring angles, again excluding the ligand bite angle, are much smaller [range 91.2 (5)–93.6 (7)°], and while one Pt—P—C_phenyl angle is as large as 124.5 (5) or 125.8 (5)°, the other is only 115.9 (6) or 117.8 (5)°. Clearly the four-membered chelate ring of dppm represents a highly strained situation which may extend as far as to promote differences between the angles between pairs of phenyl groups bonded to the same P atom, 77.4 (7) and 74.0 (7)° for P1 and P2 of dppp, and 72.3 (7) and 70.4 (7)° for P3 and P4 of dppm.

Related literature

For related literature, see: Ahter et al. (2000); Azam et al. (1999); Ferguson et al. (2001); Irisli et al. (1997); Lobana et al. (1998, 2000); Spek (1990).

S2. Experimental

The title complex was prepared according to the method of Irisli et al. (1997). Recrystallization from methanol yielded colourless crystals suitable for X-ray analysis.

S3. Refinement

H atoms were placed in calculated positions, with C—H distances of 0.93 and 0.97 Å for aromatic and methylene H atoms, respectively, and were refined as riding, with U_iso(H) = 1.2U_eq(C). PLATON (Spek, 1990) indicated the presence of solvent-accessible voids. However, no additional electron density was found in the difference map. The largest difference peak was 0.71 Å from Pt and attributable to the ripple caused by series termination.

Computing details

Data collection: CAD-4 EXPRESS (Enraf-Nonius, 1993); cell refinement: CAD-4 EXPRESS; data reduction: CAD-4 EXPRESS; program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: ORTEP-3 (Farrugia, 1997); software used to prepare material for publication: SHELXL97.

Figures

Fig. 1. A view of (I) with the atom-numbering scheme. Displacement ellipsoids are drawn at the 30% probability level. H atoms have been omitted for clarity. Only selected phenyl C atoms, corresponding to the usage Ci1–Ci6, where i = 1–8 and identifies a particular phenyl ring, are labelled.

(Bis(diphenylphosphino)methane)-(1,3-bis(diphenylphosphino)propane) -platinum(II) dibromide

Crystal data

[Pt(C25H22P2)(C27H26P2)]Br2	Z = 2
Mr = 1151.69	F(000) = 1136
Triclinic, P1	Dx = 1.549 Mg m^−3
a = 12.534 (2) Å	Mo Kα radiation, λ = 0.71073 Å
b = 13.044 (2) Å	Cell parameters from 25 reflections
c = 17.633 (2) Å	θ = 9.9–18.0°
α = 104.059 (9)°	µ = 4.62 mm^−1
β = 96.781 (9)°	T = 293 K
γ = 114.31 (1)°	Rectangular prism, colourless
V = 2469.8 (6) Å^3	0.12 × 0.08 × 0.04 mm

Data collection

Enraf-Nonius CAD-4 diffractometer	7119 reflections with I > 2σ(I)
Radiation source: fine-focus sealed tube	Rint = 0.000
Graphite monochromator	θmax = 26.3°, θmin = 2.3°
ω/2θ scans	h = 0→15
Absorption correction: ψ scan (MolEN; Fair, 1990)	k = −16→14
Tmin = 0.80, Tmax = 0.99	l = −21→21
10023 measured reflections	3 standard reflections every 120 min
10023 independent reflections	intensity decay: random variation +−0.8%

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)] = 0.045	Hydrogen site location: inferred from neighbouring sites
wR(F^2) = 0.154	H-atom parameters constrained
S = 1.28	w = 1/[σ^2(Fo^2) + (0.08P)^2 + 0.929P] where P = (Fo^2 + 2Fc^2)/3
10023 reflections	(Δ/σ)max = 0.007
532 parameters	Δρmax = 2.14 e Å^−3
0 restraints	Δρmin = −0.61 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-square plane data from SHELXL97 refinement run:

Least-squares planes (x,y,z in crystal coordinates) and deviations from them (* indicates atom used to define plane)

- 5.6522 (0.0150) x - 4.9192 (0.0148) y + 15.1046 (0.0113) z = 1.8567 (0.0173)

* -0.0858 (0.0016) Pt * 0.0049 (0.0018) P1 * 0.0413 (0.0018) P2 * -0.0028 (0.0021) P3 * 0.0423 (0.0021) P4 - 0.9492 (0.0190) C1 - 0.5490 (0.0199) C2 - 0.9382 (0.0160) C3 0.8415 (0.0170) C4

Rms deviation of fitted atoms = 0.0467

5.6555 (0.0463) x + 6.7510 (0.0434) y - 12.7209 (0.0520) z = 1.1187 (0.0582)

Angle to previous plane (with approximate e.s.d.) = 14.34 (0.45)

* 0.2367 (0.0046) Pt * -0.2674 (0.0077) P1 * -0.2825 (0.0069) P2 * 0.2858 (0.0125) C1 * -0.2686 (0.0138) C2 * 0.2960 (0.0109) C3 0.6363 (0.0142) P3 0.5804 (0.0132) P4 0.0475 (0.0236) C4

Rms deviation of fitted atoms = 0.2735

- 5.6522 (0.0150) x - 4.9192 (0.0148) y + 15.1046 (0.0113) z = 1.8567 (0.0173)

Angle to previous plane (with approximate e.s.d.) = 14.34 (0.45)

* -0.0858 (0.0016) Pt * 0.0049 (0.0018) P1 * 0.0413 (0.0018) P2 * -0.0028 (0.0021) P3 * 0.0423 (0.0021) P4 - 0.9492 (0.0190) C1 - 0.5490 (0.0199) C2 - 0.9382 (0.0160) C3 0.8415 (0.0170) C4

Rms deviation of fitted atoms = 0.0467

5.3811 (0.0298) x + 7.1108 (0.0408) y - 12.5538 (0.0598) z = 1.6708 (0.0699)

Angle to previous plane (with approximate e.s.d.) = 15.77 (0.42)

* -0.1797 (0.0047) Pt * 0.2355 (0.0055) P3 * -0.2954 (0.0065) C4 * 0.2397 (0.0057) P4 - 0.6857 (0.0139) P1 - 0.7735 (0.0138) P2 - 0.1831 (0.0290) C1 - 0.7792 (0.0308) C2 - 0.2289 (0.0268) C3

Rms deviation of fitted atoms = 0.2411

5.6555 (0.0463) x + 6.7510 (0.0434) y - 12.7209 (0.0520) z = 1.1187 (0.0582)

Angle to previous plane (with approximate e.s.d.) = 1.90 (0.68)

* 0.2367 (0.0046) Pt * -0.2674 (0.0077) P1 * -0.2825 (0.0069) P2 * 0.2858 (0.0125) C1 * -0.2686 (0.0138) C2 * 0.2960 (0.0109) C3 0.6363 (0.0142) P3 0.5804 (0.0132) P4 0.0475 (0.0236) C4

Rms deviation of fitted atoms = 0.2735

- 5.6509 (0.0150) x - 4.9122 (0.0147) y + 15.1120 (0.0112) z = 1.8901 (0.0173)

Angle to previous plane (with approximate e.s.d.) = 14.39 (0.45)

* -0.0183 (0.0017) P1 * 0.0184 (0.0017) P2 * -0.0225 (0.0021) P3 * 0.0224 (0.0021) P4 - 0.1073 (0.0020) Pt

Rms deviation of fitted atoms = 0.0205

5.3811 (0.0298) x + 7.1108 (0.0408) y - 12.5538 (0.0598) z = 1.6708 (0.0699)

Angle to previous plane (with approximate e.s.d.) = 15.82 (0.42)

* -0.1797 (0.0047) Pt * 0.2355 (0.0055) P3 * -0.2954 (0.0065) C4 * 0.2397 (0.0057) P4 - 0.6857 (0.0139) P1 - 0.7735 (0.0138) P2 - 0.1831 (0.0290) C1 - 0.7792 (0.0308) C2 - 0.2289 (0.0268) C3

Rms deviation of fitted atoms = 0.2411

5.6555 (0.0463) x + 6.7510 (0.0434) y - 12.7209 (0.0520) z = 1.1187 (0.0582)

Angle to previous plane (with approximate e.s.d.) = 1.90 (0.68)

* 0.2367 (0.0046) Pt * -0.2674 (0.0077) P1 * -0.2825 (0.0069) P2 * 0.2858 (0.0125) C1 * -0.2686 (0.0138) C2 * 0.2960 (0.0109) C3 0.6363 (0.0142) P3 0.5804 (0.0132) P4 0.0475 (0.0236) C4

Rms deviation of fitted atoms = 0.2735

5.0532 (0.0459) x + 8.5505 (0.0437) y - 8.5412 (0.1147) z = 4.1976 (0.0839)

Angle to previous plane (with approximate e.s.d.) = 18.50 (0.67)

* 0.0063 (0.0064) P1 * -0.0063 (0.0066) P2 * -0.0081 (0.0081) C1 * 0.0081 (0.0083) C3 0.9810 (0.0111) Pt -0.7191 (0.0238) C2

Rms deviation of fitted atoms = 0.0072

-0.3685 (0.1036) x + 5.5272 (0.0938) y + 12.2944 (0.1017) z = 11.1834 (0.0307)

Angle to previous plane (with approximate e.s.d.) = 75.26 (0.60)

* 0.0172 (0.0125) C11 * -0.0185 (0.0140) C12 * 0.0123 (0.0146) C13 * -0.0051 (0.0151) C14 * 0.0037 (0.0145) C15 * -0.0096 (0.0130) C16 - 0.0926 (0.0257) P1

Rms deviation of fitted atoms = 0.0124

10.1281 (0.0601) x - 11.2820 (0.0555) y + 2.8888 (0.1525) z = 1.9942 (0.1155)

Angle to previous plane (with approximate e.s.d.) = 77.36 (0.69)

* 0.0106 (0.0129) C21 * -0.0110 (0.0131) C22 * 0.0060 (0.0141) C23 * -0.0010 (0.0164) C24 * 0.0011 (0.0184) C25 * -0.0057 (0.0165) C26 0.0660 (0.0257) P1

Rms deviation of fitted atoms = 0.0071

10.2718 (0.0625) x - 3.9837 (0.1067) y + 7.5773 (0.1377) z = 12.8317 (0.0572)

Angle to previous plane (with approximate e.s.d.) = 46.70 (0.69)

* -0.0042 (0.0129) C31 * 0.0042 (0.0133) C32 * -0.0062 (0.0153) C33 * 0.0083 (0.0167) C34 * -0.0082 (0.0161) C35 * 0.0061 (0.0147) C36 0.0426 (0.0271) P2

Rms deviation of fitted atoms = 0.0064

- 2.7491 (0.1000) x + 8.4739 (0.0825) y + 9.5660 (0.1214) z = 9.0130 (0.1139)

Angle to previous plane (with approximate e.s.d.) = 74.00 (0.68)

* -0.0171 (0.0122) C41 * 0.0250 (0.0129) C42 * -0.0101 (0.0154) C43 * -0.0130 (0.0159) C44 * 0.0211 (0.0148) C45 * -0.0060 (0.0137) C46 - 0.0731 (0.0259) P2

Rms deviation of fitted atoms = 0.0167

- 2.0569 (0.1119) x + 8.4856 (0.0861) y + 9.1804 (0.1339) z = 12.9621 (0.1161)

Angle to previous plane (with approximate e.s.d.) = 3.52 (1.49)

* 0.0140 (0.0126) C51 * -0.0234 (0.0145) C52 * 0.0201 (0.0170) C53 * -0.0077 (0.0174) C54 * -0.0010 (0.0167) C55 * -0.0020 (0.0148) C56 - 0.1073 (0.0265) P3

Rms deviation of fitted atoms = 0.0142

10.2540 (0.0603) x - 10.6817 (0.0634) y + 5.0192 (0.1560) z = 6.1519 (0.1524)

Angle to previous plane (with approximate e.s.d.) = 72.34 (0.69)

* -0.0095 (0.0128) C61 * 0.0091 (0.0144) C62 * -0.0082 (0.0178) C63 * 0.0075 (0.0188) C64 * -0.0080 (0.0178) C65 * 0.0091 (0.0145) C66 - 0.0020 (0.0262) P3

Rms deviation of fitted atoms = 0.0086

11.4599 (0.0434) x - 5.2374 (0.0917) y + 4.9501 (0.1417) z = 9.8334 (0.1086)

Angle to previous plane (with approximate e.s.d.) = 31.38 (0.73)

* -0.0214 (0.0120) C71 * 0.0317 (0.0133) C72 * -0.0163 (0.0152) C73 * -0.0095 (0.0154) C74 * 0.0192 (0.0149) C75 * -0.0037 (0.0140) C76 - 0.0883 (0.0244) P4

Rms deviation of fitted atoms = 0.0192

1.8381 (0.1005) x + 8.9466 (0.0800) y + 4.2747 (0.1540) z = 13.4016 (0.0648)

Angle to previous plane (with approximate e.s.d.) = 70.38 (0.69)

* 0.0061 (0.0120) C81 * -0.0009 (0.0126) C82 * -0.0035 (0.0136) C83 * 0.0031 (0.0164) C84 * 0.0020 (0.0181) C85 * -0.0067 (0.0153) C86 0.1060 (0.0255) P4

Rms deviation of fitted atoms = 0.0042

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

	x	y	z	Uiso*/Ueq
Pt	0.94915 (5)	0.76574 (5)	0.72180 (3)	0.0503 (2)
P1	0.7654 (4)	0.6648 (3)	0.6262 (2)	0.0557 (9)
P2	0.9787 (4)	0.5975 (3)	0.6865 (2)	0.0539 (9)
P3	1.1181 (4)	0.8877 (3)	0.8302 (2)	0.0549 (8)
P4	0.9417 (3)	0.9414 (3)	0.7847 (2)	0.0529 (8)
Br1	0.19117 (19)	0.27414 (18)	0.02867 (12)	0.0837 (6)
Br2	0.9315 (2)	0.2065 (2)	0.47593 (15)	0.0961 (7)
C1	0.7661 (18)	0.5686 (16)	0.5319 (9)	0.068 (4)
H1A	0.6863	0.5314	0.4957	0.081*
H1B	0.8224	0.6177	0.5069	0.081*
C2	0.7990 (16)	0.4740 (14)	0.5399 (10)	0.068 (4)
H2A	0.7782	0.4173	0.4867	0.081*
H2B	0.7507	0.4321	0.5719	0.081*
C3	0.9334 (16)	0.5186 (14)	0.5790 (9)	0.061 (4)
H3A	0.9822	0.5708	0.5523	0.073*
H3B	0.9503	0.4510	0.5700	0.073*
C4	1.0359 (14)	0.9628 (14)	0.8798 (9)	0.058 (3)
H4A	0.9899	0.9221	0.9132	0.069*
H4B	1.0878	1.0459	0.9104	0.069*
C11	0.7095 (15)	0.7607 (14)	0.5903 (9)	0.060 (4)
C12	0.782 (2)	0.8373 (17)	0.5551 (12)	0.079 (5)
H12	0.8570	0.8411	0.5520	0.095*
C13	0.746 (2)	0.9081 (19)	0.5247 (13)	0.084 (5)
H13	0.7962	0.9634	0.5039	0.101*
C14	0.627 (3)	0.893 (2)	0.5264 (12)	0.095 (7)
H14	0.5990	0.9379	0.5041	0.114*
C15	0.556 (2)	0.818 (2)	0.5588 (12)	0.088 (6)
H15	0.4797	0.8117	0.5606	0.106*
C16	0.5975 (17)	0.7481 (16)	0.5905 (11)	0.075 (5)
H16	0.5472	0.6929	0.6115	0.090*
C21	0.6465 (14)	0.5730 (13)	0.6650 (9)	0.056 (3)
C22	0.6513 (15)	0.5997 (16)	0.7452 (11)	0.066 (4)
H22	0.7158	0.6691	0.7804	0.080*
C23	0.5663 (18)	0.530 (2)	0.7767 (12)	0.083 (5)
H23	0.5753	0.5508	0.8322	0.099*
C24	0.4654 (17)	0.4269 (18)	0.7256 (17)	0.093 (7)
H24	0.4062	0.3797	0.7465	0.112*
C25	0.455 (2)	0.397 (2)	0.6447 (15)	0.101 (7)
H25	0.3897	0.3286	0.6096	0.121*
C26	0.5471 (19)	0.4721 (17)	0.6139 (12)	0.086 (6)
H26	0.5395	0.4525	0.5585	0.103*
C31	0.8979 (15)	0.4849 (13)	0.7306 (9)	0.058 (3)
C32	0.8594 (16)	0.5139 (15)	0.7991 (10)	0.066 (4)
H32	0.8737	0.5919	0.8224	0.079*
C33	0.7988 (19)	0.4275 (18)	0.8345 (12)	0.080 (5)
H33	0.7712	0.4468	0.8799	0.096*
C34	0.782 (2)	0.3178 (18)	0.8009 (15)	0.091 (6)
H34	0.7449	0.2603	0.8245	0.110*
C35	0.8192 (19)	0.2864 (17)	0.7325 (15)	0.086 (6)
H35	0.8036	0.2080	0.7096	0.103*
C36	0.8785 (18)	0.3694 (15)	0.6976 (12)	0.075 (5)
H36	0.9054	0.3482	0.6522	0.091*
C41	1.1343 (15)	0.6245 (14)	0.7131 (10)	0.061 (4)
C42	1.1754 (19)	0.5801 (17)	0.7687 (12)	0.081 (5)
H42	1.1239	0.5382	0.7963	0.097*
C43	1.2949 (18)	0.6002 (18)	0.7816 (15)	0.087 (6)
H43	1.3218	0.5674	0.8161	0.105*
C44	1.3724 (16)	0.6653 (19)	0.7459 (17)	0.096 (7)
H44	1.4518	0.6770	0.7558	0.115*
C45	1.334 (2)	0.716 (2)	0.6932 (14)	0.089 (6)
H45	1.3887	0.7647	0.6703	0.107*
C46	1.2175 (17)	0.6940 (18)	0.6766 (12)	0.079 (5)
H46	1.1913	0.7251	0.6404	0.095*
C51	1.1821 (14)	0.8395 (13)	0.9023 (9)	0.055 (3)
C52	1.1116 (16)	0.7731 (17)	0.9439 (11)	0.072 (4)
H52	1.0306	0.7558	0.9356	0.086*
C53	1.158 (2)	0.732 (2)	0.9970 (13)	0.095 (6)
H53	1.1096	0.6931	1.0274	0.114*
C54	1.275 (2)	0.747 (2)	1.0059 (15)	0.099 (7)
H54	1.3049	0.7155	1.0396	0.119*
C55	1.3480 (19)	0.813 (2)	0.9626 (14)	0.089 (6)
H55	1.4278	0.8262	0.9686	0.106*
C56	1.3008 (17)	0.8565 (19)	0.9115 (12)	0.079 (5)
H56	1.3491	0.8983	0.8824	0.095*
C61	1.2447 (14)	0.9999 (13)	0.8089 (11)	0.064 (4)
C62	1.2651 (16)	0.982 (2)	0.7337 (12)	0.078 (5)
H62	1.2153	0.9126	0.6915	0.093*
C63	1.363 (3)	1.073 (3)	0.723 (2)	0.126 (11)
H63	1.3756	1.0629	0.6710	0.151*
C64	1.443 (2)	1.177 (3)	0.783 (2)	0.116 (10)
H64	1.5097	1.2339	0.7729	0.139*
C65	1.420 (2)	1.190 (2)	0.855 (2)	0.108 (8)
H65	1.4706	1.2601	0.8969	0.129*
C66	1.3238 (15)	1.1031 (16)	0.8705 (15)	0.084 (6)
H66	1.3123	1.1142	0.9225	0.101*
C71	1.0196 (13)	1.0691 (13)	0.7529 (10)	0.055 (3)
C72	1.0511 (16)	1.0589 (16)	0.6799 (11)	0.070 (4)
H72	1.0375	0.9851	0.6469	0.083*
C73	1.1027 (19)	1.158 (2)	0.6556 (13)	0.084 (5)
H73	1.1181	1.1506	0.6048	0.101*
C74	1.1300 (18)	1.2644 (19)	0.7064 (14)	0.082 (5)
H74	1.1660	1.3307	0.6900	0.099*
C75	1.1081 (18)	1.2807 (15)	0.7801 (15)	0.088 (6)
H75	1.1309	1.3566	0.8145	0.106*
C76	1.0508 (17)	1.1818 (13)	0.8035 (12)	0.075 (5)
H76	1.0331	1.1912	0.8537	0.090*
C81	0.8034 (13)	0.9498 (12)	0.8033 (9)	0.055 (3)
C82	0.7456 (15)	0.9852 (15)	0.7523 (11)	0.066 (4)
H82	0.7745	1.0001	0.7079	0.079*
C83	0.6463 (17)	0.9991 (16)	0.7652 (12)	0.077 (5)
H83	0.6072	1.0232	0.7304	0.092*
C84	0.6044 (19)	0.975 (2)	0.8347 (16)	0.099 (7)
H84	0.5374	0.9844	0.8457	0.118*
C85	0.662 (2)	0.940 (3)	0.8833 (15)	0.106 (8)
H85	0.6345	0.9250	0.9281	0.127*
C86	0.7597 (17)	0.9263 (18)	0.8681 (12)	0.075 (5)
H86	0.7977	0.9006	0.9023	0.090*

Atomic displacement parameters (Ų)

	U^11	U^22	U^33	U^12	U^13	U^23
Pt	0.0532 (3)	0.0437 (3)	0.0521 (3)	0.0216 (2)	0.0135 (2)	0.0129 (2)
P1	0.060 (2)	0.0495 (19)	0.0492 (19)	0.0207 (17)	0.0078 (16)	0.0118 (15)
P2	0.057 (2)	0.0457 (19)	0.061 (2)	0.0242 (17)	0.0219 (17)	0.0169 (16)
P3	0.055 (2)	0.0483 (19)	0.058 (2)	0.0217 (17)	0.0139 (17)	0.0159 (16)
P4	0.053 (2)	0.0468 (19)	0.056 (2)	0.0224 (16)	0.0102 (16)	0.0146 (16)
Br1	0.0856 (13)	0.0758 (12)	0.0702 (11)	0.0266 (10)	0.0194 (9)	0.0093 (9)
Br2	0.1171 (17)	0.0744 (12)	0.0960 (15)	0.0393 (12)	0.0245 (13)	0.0353 (11)
C1	0.089 (12)	0.071 (10)	0.042 (7)	0.044 (9)	0.009 (7)	0.006 (7)
C2	0.076 (11)	0.051 (8)	0.065 (9)	0.029 (8)	0.005 (8)	0.005 (7)
C3	0.083 (11)	0.056 (8)	0.055 (8)	0.039 (8)	0.032 (8)	0.015 (7)
C4	0.057 (8)	0.055 (8)	0.058 (8)	0.029 (7)	0.011 (7)	0.010 (7)
C11	0.061 (9)	0.058 (9)	0.058 (8)	0.027 (7)	0.006 (7)	0.018 (7)
C12	0.086 (13)	0.072 (11)	0.079 (12)	0.034 (10)	0.020 (10)	0.029 (9)
C13	0.094 (14)	0.084 (13)	0.086 (13)	0.047 (12)	0.024 (11)	0.033 (11)
C14	0.15 (2)	0.100 (15)	0.069 (12)	0.085 (16)	0.018 (13)	0.036 (11)
C15	0.093 (14)	0.101 (15)	0.068 (11)	0.049 (12)	0.007 (10)	0.024 (11)
C16	0.074 (11)	0.066 (10)	0.067 (10)	0.022 (9)	0.005 (8)	0.017 (8)
C21	0.056 (8)	0.045 (7)	0.060 (8)	0.020 (6)	0.009 (7)	0.012 (6)
C22	0.052 (8)	0.064 (9)	0.074 (10)	0.018 (7)	0.008 (7)	0.025 (8)
C23	0.082 (13)	0.113 (16)	0.074 (11)	0.056 (13)	0.027 (10)	0.041 (11)
C24	0.055 (10)	0.066 (11)	0.14 (2)	0.013 (9)	0.001 (11)	0.043 (13)
C25	0.079 (13)	0.077 (13)	0.093 (16)	−0.007 (11)	0.006 (11)	0.023 (12)
C26	0.084 (13)	0.069 (11)	0.065 (10)	0.010 (10)	0.008 (9)	0.008 (9)
C31	0.069 (9)	0.044 (7)	0.062 (9)	0.025 (7)	0.021 (7)	0.018 (6)
C32	0.070 (10)	0.055 (9)	0.071 (10)	0.030 (8)	0.016 (8)	0.015 (7)
C33	0.092 (13)	0.075 (12)	0.082 (12)	0.034 (10)	0.042 (11)	0.037 (10)
C34	0.104 (16)	0.068 (12)	0.109 (16)	0.030 (11)	0.035 (13)	0.055 (12)
C35	0.093 (14)	0.054 (10)	0.118 (17)	0.032 (10)	0.036 (13)	0.040 (11)
C36	0.091 (13)	0.054 (9)	0.082 (12)	0.036 (9)	0.034 (10)	0.012 (8)
C41	0.062 (9)	0.053 (8)	0.070 (9)	0.031 (7)	0.014 (7)	0.013 (7)
C42	0.091 (13)	0.066 (11)	0.087 (13)	0.045 (10)	0.027 (11)	0.010 (9)
C43	0.064 (11)	0.072 (12)	0.122 (17)	0.035 (10)	0.004 (11)	0.026 (11)
C44	0.043 (9)	0.078 (13)	0.15 (2)	0.022 (9)	0.009 (11)	0.015 (13)
C45	0.082 (13)	0.090 (14)	0.096 (14)	0.042 (12)	0.038 (11)	0.017 (11)
C46	0.074 (12)	0.081 (12)	0.084 (12)	0.033 (10)	0.036 (10)	0.026 (10)
C51	0.063 (9)	0.051 (8)	0.050 (7)	0.025 (7)	0.013 (6)	0.013 (6)
C52	0.059 (9)	0.079 (11)	0.077 (11)	0.030 (9)	0.007 (8)	0.030 (9)
C53	0.090 (15)	0.126 (19)	0.084 (13)	0.057 (14)	0.028 (11)	0.044 (13)
C54	0.123 (19)	0.105 (17)	0.100 (16)	0.069 (15)	0.033 (14)	0.051 (14)
C55	0.069 (11)	0.103 (15)	0.112 (16)	0.055 (11)	0.014 (11)	0.042 (13)
C56	0.068 (11)	0.088 (13)	0.081 (12)	0.035 (10)	0.017 (9)	0.031 (10)
C61	0.051 (8)	0.045 (8)	0.090 (12)	0.016 (7)	0.007 (8)	0.027 (8)
C62	0.062 (10)	0.104 (14)	0.087 (12)	0.043 (10)	0.042 (9)	0.043 (11)
C63	0.13 (2)	0.16 (3)	0.17 (3)	0.10 (2)	0.09 (2)	0.10 (3)
C64	0.056 (12)	0.089 (17)	0.20 (3)	0.020 (12)	0.024 (17)	0.07 (2)
C65	0.061 (12)	0.075 (14)	0.16 (3)	0.016 (10)	0.012 (14)	0.028 (15)
C66	0.049 (9)	0.063 (10)	0.117 (16)	0.017 (8)	0.002 (9)	0.014 (10)
C71	0.052 (8)	0.046 (7)	0.071 (9)	0.022 (6)	0.018 (7)	0.024 (7)
C72	0.064 (10)	0.068 (10)	0.068 (10)	0.022 (8)	0.019 (8)	0.020 (8)
C73	0.090 (14)	0.086 (14)	0.086 (13)	0.035 (11)	0.038 (11)	0.046 (11)
C74	0.078 (12)	0.081 (13)	0.098 (14)	0.029 (10)	0.027 (11)	0.056 (12)
C75	0.079 (12)	0.040 (8)	0.127 (18)	0.010 (8)	0.012 (12)	0.034 (10)
C76	0.086 (12)	0.037 (7)	0.089 (12)	0.021 (8)	0.021 (10)	0.015 (8)
C81	0.055 (8)	0.041 (7)	0.069 (9)	0.024 (6)	0.021 (7)	0.011 (6)
C82	0.060 (9)	0.060 (9)	0.086 (11)	0.030 (8)	0.028 (8)	0.032 (8)
C83	0.077 (12)	0.062 (10)	0.086 (12)	0.032 (9)	0.022 (10)	0.012 (9)
C84	0.062 (11)	0.097 (16)	0.118 (18)	0.033 (11)	0.026 (12)	0.007 (13)
C85	0.087 (15)	0.14 (2)	0.097 (16)	0.041 (15)	0.047 (13)	0.053 (15)
C86	0.069 (11)	0.095 (13)	0.077 (11)	0.044 (10)	0.028 (9)	0.037 (10)

Geometric parameters (Å, º)

Pt—P1	2.322 (4)	C35—H35	0.9300
Pt—P2	2.323 (4)	C36—H36	0.9300
Pt—P3	2.337 (4)	C41—C42	1.40 (3)
Pt—P4	2.336 (4)	C41—C46	1.41 (2)
P1—C1	1.827 (15)	C42—C43	1.39 (3)
P1—C11	1.859 (16)	C42—H42	0.9300
P1—C21	1.815 (16)	C43—C44	1.34 (3)
P2—C3	1.814 (15)	C43—H43	0.9300
P2—C31	1.818 (15)	C44—C45	1.41 (3)
P2—C41	1.813 (16)	C44—H44	0.9300
P3—C4	1.847 (15)	C45—C46	1.35 (3)
P3—C51	1.794 (15)	C45—H45	0.9300
P3—C61	1.816 (16)	C46—H46	0.9300
P4—C4	1.822 (16)	C51—C52	1.38 (2)
P4—C71	1.812 (14)	C51—C56	1.39 (2)
P4—C81	1.843 (15)	C52—C53	1.37 (3)
C1—C2	1.48 (2)	C52—H52	0.9300
C2—C3	1.54 (2)	C53—C54	1.38 (3)
C1—H1A	0.9700	C53—H53	0.9300
C1—H1B	0.9700	C54—C55	1.41 (3)
C2—H2A	0.9700	C54—H54	0.9300
C2—H2B	0.9700	C55—C56	1.37 (3)
C3—H3A	0.9700	C55—H55	0.9300
C3—H3B	0.9700	C56—H56	0.9300
C4—H4A	0.9700	C61—C62	1.36 (3)
C4—H4B	0.9700	C61—C66	1.38 (3)
C11—C16	1.35 (2)	C62—C63	1.38 (4)
C11—C12	1.38 (3)	C62—H62	0.9300
C12—C13	1.37 (3)	C63—C64	1.37 (4)
C12—H12	0.9300	C63—H63	0.9300
C13—C14	1.42 (3)	C64—C65	1.33 (4)
C13—H13	0.9300	C64—H64	0.9300
C14—C15	1.33 (3)	C65—C66	1.38 (3)
C14—H14	0.9300	C65—H65	0.9300
C15—C16	1.41 (3)	C66—H66	0.9300
C15—H15	0.9300	C71—C72	1.38 (2)
C16—H16	0.9300	C71—C76	1.38 (2)
C21—C22	1.36 (2)	C72—C73	1.39 (3)
C21—C26	1.38 (2)	C72—H72	0.9300
C22—C23	1.36 (3)	C73—C74	1.33 (3)
C22—H22	0.9300	C73—H73	0.9300
C23—C24	1.40 (3)	C74—C75	1.34 (3)
C23—H23	0.9300	C74—H74	0.9300
C24—C25	1.36 (3)	C75—C76	1.38 (3)
C24—H24	0.9300	C75—H75	0.9300
C25—C26	1.43 (3)	C76—H76	0.9300
C25—H25	0.9300	C81—C82	1.37 (2)
C26—H26	0.9300	C81—C86	1.37 (2)
C31—C32	1.38 (2)	C82—C83	1.37 (2)
C31—C36	1.38 (2)	C82—H82	0.9300
C32—C33	1.41 (2)	C83—C84	1.44 (3)
C32—H32	0.9300	C83—H83	0.9300
C33—C34	1.33 (3)	C84—C85	1.33 (3)
C33—H33	0.9300	C84—H84	0.9300
C34—C35	1.37 (3)	C85—C86	1.36 (3)
C34—H34	0.9300	C85—H85	0.9300
C35—C36	1.37 (3)	C86—H86	0.9300
P1—Pt—P2	89.88 (14)	C33—C34—C35	122.2 (18)
P1—Pt—P4	100.33 (14)	C33—C34—H34	118.9
P2—Pt—P4	167.79 (14)	C35—C34—H34	118.9
P1—Pt—P3	169.48 (14)	C36—C35—C34	120.7 (18)
P2—Pt—P3	99.48 (14)	C36—C35—H35	119.7
P4—Pt—P3	69.84 (14)	C34—C35—H35	119.7
C21—P1—C1	107.2 (8)	C35—C36—C31	119.3 (17)
C21—P1—C11	105.7 (7)	C35—C36—H36	120.4
C1—P1—C11	102.2 (7)	C31—C36—H36	120.4
C21—P1—Pt	111.2 (5)	C42—C41—C46	118.8 (17)
C1—P1—Pt	114.4 (6)	C42—C41—P2	122.9 (14)
C11—P1—Pt	115.2 (5)	C46—C41—P2	118.3 (14)
C41—P2—C3	102.3 (8)	C43—C42—C41	118 (2)
C41—P2—C31	104.5 (8)	C43—C42—H42	120.8
C3—P2—C31	104.3 (7)	C41—C42—H42	120.8
C41—P2—Pt	115.2 (5)	C44—C43—C42	122 (2)
C3—P2—Pt	114.5 (5)	C44—C43—H43	119.0
C31—P2—Pt	114.6 (5)	C42—C43—H43	119.0
C51—P3—C61	106.2 (7)	C43—C44—C45	120.2 (18)
C51—P3—C4	107.9 (7)	C43—C44—H44	119.9
C61—P3—C4	107.0 (8)	C45—C44—H44	119.9
C51—P3—Pt	125.8 (5)	C46—C45—C44	119 (2)
C61—P3—Pt	115.9 (6)	C46—C45—H45	120.4
C4—P3—Pt	91.2 (5)	C44—C45—H45	120.4
C71—P4—C4	107.6 (8)	C45—C46—C41	121 (2)
C71—P4—C81	104.2 (7)	C45—C46—H46	119.4
C4—P4—C81	108.9 (7)	C41—C46—H46	119.4
C71—P4—Pt	117.8 (5)	C52—C51—C56	117.7 (15)
C4—P4—Pt	91.9 (5)	C52—C51—P3	120.8 (12)
C81—P4—Pt	124.4 (5)	C56—C51—P3	121.0 (13)
C2—C1—P1	115.4 (12)	C53—C52—C51	121.8 (18)
C2—C1—H1A	108.4	C53—C52—H52	119.1
P1—C1—H1A	108.4	C51—C52—H52	119.1
C2—C1—H1B	108.4	C52—C53—C54	121 (2)
P1—C1—H1B	108.4	C52—C53—H53	119.7
H1A—C1—H1B	107.5	C54—C53—H53	119.7
C1—C2—C3	114.7 (14)	C53—C54—C55	118 (2)
C1—C2—H2A	108.6	C53—C54—H54	120.8
C3—C2—H2A	108.6	C55—C54—H54	120.8
C1—C2—H2B	108.6	C56—C55—C54	119.7 (19)
C3—C2—H2B	108.6	C56—C55—H55	120.1
H2A—C2—H2B	107.6	C54—C55—H55	120.1
C2—C3—P2	114.2 (11)	C55—C56—C51	121.4 (19)
C2—C3—H3A	108.7	C55—C56—H56	119.3
P2—C3—H3A	108.7	C51—C56—H56	119.3
C2—C3—H3B	108.7	C62—C61—C66	119.4 (18)
P2—C3—H3B	108.7	C62—C61—P3	121.1 (14)
H3A—C3—H3B	107.6	C66—C61—P3	119.5 (16)
P4—C4—P3	93.6 (7)	C61—C62—C63	117 (2)
P4—C4—H4A	113.0	C61—C62—H62	121.4
P3—C4—H4A	113.0	C63—C62—H62	121.4
P4—C4—H4B	113.0	C64—C63—C62	125 (3)
P3—C4—H4B	113.0	C64—C63—H63	117.6
H4A—C4—H4B	110.4	C62—C63—H63	117.6
C16—C11—C12	120.2 (17)	C65—C64—C63	116 (2)
C16—C11—P1	121.9 (14)	C65—C64—H64	121.9
C12—C11—P1	117.6 (14)	C63—C64—H64	121.9
C13—C12—C11	121 (2)	C64—C65—C66	122 (3)
C13—C12—H12	119.4	C64—C65—H65	118.9
C11—C12—H12	119.4	C66—C65—H65	118.9
C12—C13—C14	117 (2)	C61—C66—C65	120 (2)
C12—C13—H13	121.4	C61—C66—H66	119.9
C14—C13—H13	121.4	C65—C66—H66	119.9
C15—C14—C13	122.0 (19)	C72—C71—C76	118.0 (15)
C15—C14—H14	119.0	C72—C71—P4	122.5 (12)
C13—C14—H14	119.0	C76—C71—P4	119.5 (13)
C14—C15—C16	119 (2)	C71—C72—C73	120.4 (18)
C14—C15—H15	120.5	C71—C72—H72	119.8
C16—C15—H15	120.5	C73—C72—H72	119.8
C11—C16—C15	120.3 (19)	C74—C73—C72	118.9 (19)
C11—C16—H16	119.9	C74—C73—H73	120.6
C15—C16—H16	119.9	C72—C73—H73	120.6
C22—C21—C26	117.1 (16)	C73—C74—C75	123.3 (18)
C22—C21—P1	121.9 (12)	C73—C74—H74	118.4
C26—C21—P1	121.0 (13)	C75—C74—H74	118.4
C21—C22—C23	123.4 (17)	C74—C75—C76	118 (2)
C21—C22—H22	118.3	C74—C75—H75	120.8
C23—C22—H22	118.3	C76—C75—H75	120.8
C22—C23—C24	120 (2)	C75—C76—C71	121 (2)
C22—C23—H23	119.9	C75—C76—H76	119.7
C24—C23—H23	119.9	C71—C76—H76	119.7
C25—C24—C23	119 (2)	C82—C81—C86	119.2 (15)
C25—C24—H24	120.6	C82—C81—P4	118.5 (12)
C23—C24—H24	120.6	C86—C81—P4	122.2 (13)
C24—C25—C26	119.5 (19)	C83—C82—C81	121.3 (17)
C24—C25—H25	120.2	C83—C82—H82	119.3
C26—C25—H25	120.2	C81—C82—H82	119.3
C21—C26—C25	121.1 (19)	C82—C83—C84	118 (2)
C21—C26—H26	119.4	C82—C83—H83	121.2
C25—C26—H26	119.4	C84—C83—H83	121.2
C32—C31—C36	118.8 (15)	C85—C84—C83	120 (2)
C32—C31—P2	120.9 (12)	C85—C84—H84	120.1
C36—C31—P2	120.2 (13)	C83—C84—H84	120.1
C31—C32—C33	121.2 (16)	C84—C85—C86	121 (2)
C31—C32—H32	119.4	C84—C85—H85	119.6
C33—C32—H32	119.4	C86—C85—H85	119.6
C34—C33—C32	117.8 (18)	C85—C86—C81	121.1 (19)
C34—C33—H33	121.1	C85—C86—H86	119.5
C32—C33—H33	121.1	C81—C86—H86	119.5
P2—Pt—P1—C21	82.3 (5)	P1—C21—C26—C25	177.6 (18)
P4—Pt—P1—C21	−91.0 (5)	C24—C25—C26—C21	1 (4)
P3—Pt—P1—C21	−70.7 (10)	C41—P2—C31—C32	105.4 (15)
P2—Pt—P1—C1	−39.4 (7)	C3—P2—C31—C32	−147.5 (14)
P4—Pt—P1—C1	147.3 (7)	Pt—P2—C31—C32	−21.5 (16)
P3—Pt—P1—C1	167.6 (9)	C41—P2—C31—C36	−72.0 (16)
P2—Pt—P1—C11	−157.5 (6)	C3—P2—C31—C36	35.1 (17)
P4—Pt—P1—C11	29.3 (6)	Pt—P2—C31—C36	161.1 (14)
P3—Pt—P1—C11	49.6 (10)	C36—C31—C32—C33	−1 (3)
P1—Pt—P2—C41	158.8 (6)	P2—C31—C32—C33	−178.8 (15)
P4—Pt—P2—C41	−54.3 (9)	C31—C32—C33—C34	2 (3)
P3—Pt—P2—C41	−26.0 (6)	C32—C33—C34—C35	−2 (4)
P1—Pt—P2—C3	40.5 (6)	C33—C34—C35—C36	2 (4)
P4—Pt—P2—C3	−172.6 (8)	C34—C35—C36—C31	−2 (3)
P3—Pt—P2—C3	−144.3 (6)	C32—C31—C36—C35	2 (3)
P1—Pt—P2—C31	−80.0 (6)	P2—C31—C36—C35	179.0 (16)
P4—Pt—P2—C31	66.9 (9)	C3—P2—C41—C42	−119.1 (14)
P3—Pt—P2—C31	95.2 (6)	C31—P2—C41—C42	−10.6 (16)
P1—Pt—P3—C51	116.5 (9)	Pt—P2—C41—C42	116.0 (13)
P2—Pt—P3—C51	−36.1 (7)	C3—P2—C41—C46	61.3 (15)
P4—Pt—P3—C51	137.8 (7)	C31—P2—C41—C46	169.9 (13)
P1—Pt—P3—C61	−106.3 (9)	Pt—P2—C41—C46	−63.6 (15)
P2—Pt—P3—C61	101.1 (6)	C46—C41—C42—C43	−4 (3)
P4—Pt—P3—C61	−85.0 (6)	P2—C41—C42—C43	176.4 (14)
P1—Pt—P3—C4	3.3 (10)	C41—C42—C43—C44	3 (3)
P2—Pt—P3—C4	−149.3 (5)	C42—C43—C44—C45	0 (4)
P4—Pt—P3—C4	24.6 (5)	C43—C44—C45—C46	−3 (3)
P1—Pt—P3—P4	−21.3 (8)	C44—C45—C46—C41	2 (3)
P2—Pt—P3—P4	−173.88 (14)	C42—C41—C46—C45	1 (3)
P1—Pt—P4—C71	−97.7 (6)	P2—C41—C46—C45	−179.3 (15)
P2—Pt—P4—C71	116.0 (8)	C61—P3—C51—C52	166.4 (14)
P3—Pt—P4—C71	86.1 (6)	C4—P3—C51—C52	52.0 (16)
P1—Pt—P4—C4	151.2 (6)	Pt—P3—C51—C52	−53.1 (16)
P2—Pt—P4—C4	4.9 (9)	P4—P3—C51—C52	25.7 (19)
P3—Pt—P4—C4	−24.9 (5)	C61—P3—C51—C56	−20.8 (16)
P1—Pt—P4—C81	36.6 (7)	C4—P3—C51—C56	−135.3 (14)
P2—Pt—P4—C81	−109.7 (9)	Pt—P3—C51—C56	119.6 (14)
P3—Pt—P4—C81	−139.5 (7)	P4—P3—C51—C56	−161.6 (11)
P1—Pt—P4—P3	176.13 (14)	C56—C51—C52—C53	5 (3)
P2—Pt—P4—P3	29.8 (7)	P3—C51—C52—C53	177.7 (17)
C51—P3—P4—C71	140.7 (10)	C51—C52—C53—C54	−5 (4)
C61—P3—P4—C71	−1.1 (8)	C52—C53—C54—C55	4 (4)
C4—P3—P4—C71	102.4 (10)	C53—C54—C55—C56	−2 (4)
Pt—P3—P4—C71	−115.3 (5)	C54—C55—C56—C51	1 (3)
C51—P3—P4—C4	38.3 (12)	C52—C51—C56—C55	−3 (3)
C61—P3—P4—C4	−103.5 (10)	P3—C51—C56—C55	−175.5 (17)
Pt—P3—P4—C4	142.3 (8)	C51—P3—C61—C62	116.2 (15)
C51—P3—P4—C81	−2.9 (13)	C4—P3—C61—C62	−128.7 (15)
C61—P3—P4—C81	−144.7 (11)	Pt—P3—C61—C62	−28.8 (16)
C4—P3—P4—C81	−41.2 (12)	P4—P3—C61—C62	−85.0 (14)
Pt—P3—P4—C81	101.1 (9)	C51—P3—C61—C66	−61.7 (15)
C51—P3—P4—Pt	−104.0 (9)	C4—P3—C61—C66	53.3 (16)
C61—P3—P4—Pt	114.2 (6)	Pt—P3—C61—C66	153.3 (12)
C4—P3—P4—Pt	−142.3 (8)	P4—P3—C61—C66	97.1 (14)
C21—P1—C1—C2	−64.9 (16)	C66—C61—C62—C63	−3 (3)
C11—P1—C1—C2	−175.8 (14)	P3—C61—C62—C63	179.5 (16)
Pt—P1—C1—C2	59.0 (16)	C61—C62—C63—C64	3 (4)
P1—C1—C2—C3	−71.8 (19)	C62—C63—C64—C65	−2 (4)
C1—C2—C3—P2	72.1 (17)	C63—C64—C65—C66	2 (4)
C41—P2—C3—C2	175.2 (12)	C62—C61—C66—C65	3 (3)
C31—P2—C3—C2	66.6 (13)	P3—C61—C66—C65	−179.4 (16)
Pt—P2—C3—C2	−59.5 (13)	C64—C65—C66—C61	−3 (4)
C71—P4—C4—P3	−89.9 (8)	C4—P4—C71—C72	121.5 (14)
C81—P4—C4—P3	157.7 (6)	C81—P4—C71—C72	−122.9 (14)
Pt—P4—C4—P3	30.1 (6)	Pt—P4—C71—C72	19.6 (16)
C51—P3—C4—P4	−158.5 (7)	P3—P4—C71—C72	76.6 (14)
C61—P3—C4—P4	87.5 (8)	C4—P4—C71—C76	−57.6 (15)
Pt—P3—C4—P4	−30.1 (6)	C81—P4—C71—C76	58.0 (15)
C21—P1—C11—C16	−4.9 (16)	Pt—P4—C71—C76	−159.5 (12)
C1—P1—C11—C16	107.2 (15)	P3—P4—C71—C76	−102.5 (14)
Pt—P1—C11—C16	−128.1 (13)	C76—C71—C72—C73	−6 (3)
C21—P1—C11—C12	−178.0 (14)	P4—C71—C72—C73	175.3 (15)
C1—P1—C11—C12	−65.9 (16)	C71—C72—C73—C74	5 (3)
Pt—P1—C11—C12	58.8 (15)	C72—C73—C74—C75	−1 (3)
C16—C11—C12—C13	5 (3)	C73—C74—C75—C76	−2 (3)
P1—C11—C12—C13	177.8 (16)	C74—C75—C76—C71	2 (3)
C11—C12—C13—C14	−4 (3)	C72—C71—C76—C75	2 (3)
C12—C13—C14—C15	3 (3)	P4—C71—C76—C75	−178.7 (15)
C13—C14—C15—C16	−2 (3)	C71—P4—C81—C82	38.6 (14)
C12—C11—C16—C15	−4 (3)	C4—P4—C81—C82	153.2 (13)
P1—C11—C16—C15	−176.6 (14)	Pt—P4—C81—C82	−100.7 (13)
C14—C15—C16—C11	2 (3)	P3—P4—C81—C82	−178.1 (9)
C1—P1—C21—C22	152.5 (14)	C71—P4—C81—C86	−138.7 (15)
C11—P1—C21—C22	−99.0 (15)	C4—P4—C81—C86	−24.1 (16)
Pt—P1—C21—C22	26.7 (15)	Pt—P4—C81—C86	82.0 (15)
C1—P1—C21—C26	−27.2 (18)	P3—P4—C81—C86	5 (2)
C11—P1—C21—C26	81.3 (16)	C86—C81—C82—C83	1 (3)
Pt—P1—C21—C26	−153.0 (15)	P4—C81—C82—C83	−176.6 (14)
C26—C21—C22—C23	3 (3)	C81—C82—C83—C84	0 (3)
P1—C21—C22—C23	−177.1 (15)	C82—C83—C84—C85	0 (3)
C21—C22—C23—C24	−2 (3)	C83—C84—C85—C86	0 (4)
C22—C23—C24—C25	1 (3)	C84—C85—C86—C81	1 (4)
C23—C24—C25—C26	−1 (4)	C82—C81—C86—C85	−1 (3)
C22—C21—C26—C25	−2 (3)	P4—C81—C86—C85	175.9 (18)

Hydrogen-bond geometry (Å, º)

D—H···A	D—H	H···A	D···A	D—H···A
C1—H1B···Br2^i	0.97	2.91	3.76 (2)	147
C3—H3A···Br2^i	0.97	2.85	3.71 (2)	148
C46—H46···Br2^i	0.93	2.94	3.86 (2)	170
C62—H62···Br2^i	0.93	2.94	3.77 (2)	149
C4—H4B···Br1^ii	0.97	2.84	3.78 (2)	163
C52—H52···Br1^iii	0.93	2.81	3.70 (2)	159
C86—H86···Br1^iii	0.93	2.88	3.73 (2)	153

Symmetry codes: (i) −x+2, −y+1, −z+1; (ii) x+1, y+1, z+1; (iii) −x+1, −y+1, −z+1.