2,4-Bis(diphenyl­phosphan­yl)-1,1,2,3,3,4-hexa­phenyl-1,3-diphospha-2,4-dibora­cyclo­butane tetra­hydro­furan sesqui­solvate

Peulecke, N.; Müller, B.H.; Spannenberg, A.; Rosenthal, U.

doi:10.1107/S1600536812011361

organic compounds

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ISSN: 2056-9890

Volume 68| Part 4| April 2012| Page o1125

doi:10.1107/S1600536812011361

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2,4-Bis(diphenylphosphanyl)-1,1,2,3,3,4-hexaphenyl-1,3-diphospha-2,4-diboracyclobutane tetrahydrofuran sesquisolvate

Normen Peulecke,^a ^* Bernd H. Müller,^a Anke Spannenberg ^a and Uwe Rosenthal ^a

^aLeibniz-Institut für Katalyse e.V. an der Universität Rostock, Albert-Einstein-Strasse 29a, 18059 Rostock, Germany
^*Correspondence e-mail: normen.peulecke@catalysis.de

(Received 5 March 2012; accepted 15 March 2012; online 21 March 2012)

In the title compound, C₆₀H₅₀B₂P₄·1.5C₄H₈O, the diphosphadiborane molecule lies on an inversion centre, whereas the disordered tetrahydrofuran solvent molecule is in a general position with a partial occupancy of 0.75. The diphosphadiborane molecule consists of an ideal planar four-membered B₂P₂ ring with an additional phenyl and a –PPh₂ group attached to each B atom.

Related literature

For the structure of a monomeric diphosphaborane molecule, see: Bartlett et al. (1988 ). For assumed monomeric PhB(PPh₂)₂, see: Coates & Livingstone (1961 ). For the structures of other dimeric boron-bridged bisphosphine compounds, see: Herdtweck et al. (1997 ); Kaufmann et al. (1997 ); Nöth (1987 ).

Experimental

Crystal data

C₆₀H₅₀B₂P₄·1.5C₄H₈O
M_r = 1024.66
Orthorhombic, P b c a
a = 19.2421 (4) Å
b = 11.6938 (2) Å
c = 24.9769 (5) Å
V = 5620.13 (19) Å³
Z = 4
Mo Kα radiation
μ = 0.18 mm⁻¹
T = 150 K
0.35 × 0.28 × 0.20 mm

Data collection

Stoe IPDS II diffractometer
Absorption correction: numerical (X-SHAPE and X-RED32; Stoe & Cie, 2005 ) T_min = 0.927, T_max = 0.986
91233 measured reflections
6705 independent reflections
4392 reflections with I > 2σ(I)
R_int = 0.072

Refinement

R[F² > 2σ(F²)] = 0.041
wR(F²) = 0.096
S = 0.87
6705 reflections
343 parameters
9 restraints
H-atom parameters constrained
Δρ_max = 0.64 e Å⁻³
Δρ_min = −0.29 e Å⁻³

Data collection: X-AREA (Stoe & Cie, 2005); cell refinement: X-AREA; data reduction: X-RED32 (Stoe & Cie, 2005); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008 ); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: XP in SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL.

Supporting information

Crystal structure: contains datablocks I, global. DOI: 10.1107/S1600536812011361/yk2048sup1.cif

Structure factors: contains datablock I. DOI: 10.1107/S1600536812011361/yk2048Isup2.hkl

checkCIF report

Comment top

We became interested in such a class of compounds, because the boron-bridged bisphosphines could be potential ligands for the chromium catalyzed selective oligomerization of ethene, like PNP. Unfortunately the synthesis of PhB(PPh₂)₂, according to the literature (Coates & Livingstone, 1961), failed and always ended up with insoluble polymer. Therefore we changed the procedure using LiPPh₂ instead of HPPh₂. Examples of structurally characterized borone-bridged bisphosphines are known (Herdtweck et al., 1997; Kaufmann et al., 1997; Nöth, 1987). Only bulky substituents at the boron lead to a monomeric structure (Bartlett et al., 1988). In the present publication, we report on the formation of the dimeric C₆₀H₅₀B₂P₄. In the structure of the title compound, the diphosphadiborane molecule occupies the position at an inversion center, whereas the solvent molecule of tetrahydrofuran lies in general position with partial occupancy equal to 0.75. In the tetrahydrofuran molecule the O atom is disordered over two sites with occupancies of 0.341 (9): 0.409 (9). All P—B distances in the four-membered ring are essentially identical [B1—P2 = 2.030 (3) Å and B1—P2ⁱ = 2.036 (2) Å], and also the B1—P1 bond distance of 2.043 (2) Å is not significantly different. In the B₂P₂ ring, angles of nearly 90° were observed [P2—B1—P2ⁱ = 87.24 (9)° and B1—P2—B1ⁱ = 92.75°].

Related literature top

For the structure of a monomeric diphosphaborane molecule, see: Bartlett et al. (1988). For assumed monomeric PhB(PPh₂)₂, see: Coates & Livingstone (1961). For the structures of other dimeric boron-bridged bisphosphine compounds, see: Herdtweck et al. (1997); Kaufmann et al. (1997); Nöth (1987).

Experimental top

PhBCl₂ (0.817 ml, 6.3 mmol) was added to a solution of 25 mL Ph₂PLi (0.5M in thf) in 20 ml of thf at -40°C and the resulting solution was stirred at room temperature for 48 h. Subsequently, the formed light brown solution was filtered, reduced to the half, over-layered with n-hexane and stored at 0°C. Crystals of the title compound appeared, which were suitable for crystal structure analysis. The white compound was fully characterized by standard analytical methods e.g. ³¹P-NMR: (C₆D₆): -10.7(br), -42.2(tr) p.p.m..

Structure description top

For the structure of a monomeric diphosphaborane molecule, see: Bartlett et al. (1988). For assumed monomeric PhB(PPh₂)₂, see: Coates & Livingstone (1961). For the structures of other dimeric boron-bridged bisphosphine compounds, see: Herdtweck et al. (1997); Kaufmann et al. (1997); Nöth (1987).

Computing details top

Data collection: X-AREA (Stoe & Cie, 2005); cell refinement: X-AREA (Stoe & Cie, 2005); data reduction: X-AREA (Stoe & Cie, 2005); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: XP in SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).

Figures top

Fig. 1. The structure of the diphosphadiborane molecule showing the atom-labelling scheme. Hydrogen atoms are omitted for clarity. Displacement ellipsoids are drawn at the 30% probability level.

2,4-Bis(diphenylphosphanyl)-1,1,2,3,3,4-hexaphenyl- 1,3-diphospha-2,4-diboracyclobutane tetrahydrofuran sesquisolvate top

Crystal data top

C₆₀H₅₀B₂P₄·1.5C₄H₈O	D_x = 1.211 Mg m⁻³
M_r = 1024.66	Mo Kα radiation, λ = 0.71073 Å
Orthorhombic, Pbca	Cell parameters from 6569 reflections
a = 19.2421 (4) Å	θ = 1.6–28.0°
b = 11.6938 (2) Å	µ = 0.18 mm⁻¹
c = 24.9769 (5) Å	T = 150 K
V = 5620.13 (19) Å³	Prism, colourless
Z = 4	0.35 × 0.28 × 0.20 mm
F(000) = 2160

Data collection top

Stoe IPDS II diffractometer	6705 independent reflections
Radiation source: fine-focus sealed tube	4392 reflections with I > 2σ(I)
Graphite monochromator	R_int = 0.072
ω scans	θ_max = 28.0°, θ_min = 2.2°
Absorption correction: numerical (X-SHAPE and X-RED32; Stoe & Cie, 2005)	h = −25→25
T_min = 0.927, T_max = 0.986	k = −15→15
91233 measured reflections	l = −32→32

Refinement top

Refinement on F²	Primary atom site location: structure-invariant direct methods
Least-squares matrix: full	Secondary atom site location: difference Fourier map
R[F² > 2σ(F²)] = 0.041	Hydrogen site location: inferred from neighbouring sites
wR(F²) = 0.096	H-atom parameters constrained
S = 0.87	w = 1/[σ²(F_o²) + (0.0536P)² + 0.0P] where P = (F_o² + 2F_c²)/3
6705 reflections	(Δ/σ)_max = 0.002
343 parameters	Δρ_max = 0.64 e Å⁻³
9 restraints	Δρ_min = −0.29 e Å⁻³

Crystal data top

C₆₀H₅₀B₂P₄·1.5C₄H₈O	V = 5620.13 (19) Å³
M_r = 1024.66	Z = 4
Orthorhombic, Pbca	Mo Kα radiation
a = 19.2421 (4) Å	µ = 0.18 mm⁻¹
b = 11.6938 (2) Å	T = 150 K
c = 24.9769 (5) Å	0.35 × 0.28 × 0.20 mm

Data collection top

Stoe IPDS II diffractometer	6705 independent reflections
Absorption correction: numerical (X-SHAPE and X-RED32; Stoe & Cie, 2005)	4392 reflections with I > 2σ(I)
T_min = 0.927, T_max = 0.986	R_int = 0.072
91233 measured reflections

Refinement top

R[F² > 2σ(F²)] = 0.041	9 restraints
wR(F²) = 0.096	H-atom parameters constrained
S = 0.87	Δρ_max = 0.64 e Å⁻³
6705 reflections	Δρ_min = −0.29 e Å⁻³
343 parameters

Special details top

Geometry. All s.u.'s (except the s.u. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell s.u.'s are taken into account individually in the estimation of s.u.'s in distances, angles and torsion angles; correlations between s.u.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell s.u.'s is used for estimating s.u.'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 (Å²) top

	x	y	z	U_iso*/U_eq	Occ. (<1)
O1A	0.1872 (2)	0.6123 (6)	0.2276 (2)	0.061 (2)*	0.341 (9)
O1B	0.1940 (2)	0.5614 (5)	0.24577 (17)	0.0613 (19)*	0.409 (9)
C31	0.2198 (2)	0.5279 (4)	0.1944 (2)	0.0981 (17)	0.75
H31A	0.1909	0.5086	0.1629	0.118*	0.341 (9)
H31B	0.2305	0.4572	0.2147	0.118*	0.341 (9)
H31C	0.1834	0.5419	0.1672	0.118*	0.409 (9)
H31D	0.2297	0.4448	0.1948	0.118*	0.409 (9)
C32	0.2832 (2)	0.5897 (4)	0.17909 (16)	0.0913 (16)	0.75
H32A	0.2749	0.6378	0.1471	0.110*	0.75
H32B	0.3214	0.5356	0.1711	0.110*	0.75
C33	0.3004 (2)	0.6610 (4)	0.22580 (13)	0.0766 (13)	0.75
H33A	0.3059	0.7420	0.2151	0.092*	0.75
H33B	0.3441	0.6346	0.2427	0.092*	0.75
C34	0.24158 (17)	0.6479 (4)	0.26295 (13)	0.0627 (10)	0.75
H34A	0.2513	0.5891	0.2905	0.075*	0.341 (9)
H34B	0.2301	0.7211	0.2808	0.075*	0.341 (9)
H34C	0.2595	0.6279	0.2989	0.075*	0.409 (9)
H34D	0.2167	0.7217	0.2659	0.075*	0.409 (9)
C1	1.06155 (9)	−0.01162 (16)	0.34268 (7)	0.0246 (4)
C2	1.00019 (10)	0.02724 (18)	0.31988 (7)	0.0307 (4)
H2	0.9719	0.0795	0.3392	0.037*
C3	0.97947 (11)	−0.00883 (19)	0.26950 (8)	0.0364 (5)
H3	0.9371	0.0185	0.2547	0.044*
C4	1.01996 (11)	−0.0841 (2)	0.24080 (8)	0.0369 (5)
H4	1.0057	−0.1089	0.2063	0.044*
C5	1.08146 (11)	−0.12344 (19)	0.26268 (8)	0.0369 (5)
H5	1.1099	−0.1749	0.2430	0.044*
C6	1.10164 (10)	−0.08786 (17)	0.31321 (7)	0.0308 (4)
H6	1.1437	−0.1161	0.3280	0.037*
C7	1.13848 (10)	0.16430 (16)	0.39173 (7)	0.0257 (4)
C8	1.20183 (10)	0.18941 (18)	0.41622 (7)	0.0299 (4)
H8	1.2214	0.1365	0.4408	0.036*
C9	1.23674 (11)	0.29054 (19)	0.40521 (9)	0.0376 (5)
H9	1.2794	0.3070	0.4228	0.045*
C10	1.20972 (12)	0.36709 (19)	0.36884 (9)	0.0414 (5)
H10	1.2332	0.4369	0.3617	0.050*
C11	1.14820 (11)	0.34169 (18)	0.34279 (9)	0.0383 (5)
H11	1.1302	0.3933	0.3169	0.046*
C12	1.11277 (10)	0.24195 (18)	0.35416 (8)	0.0319 (4)
H12	1.0704	0.2259	0.3362	0.038*
C13	0.98211 (9)	0.19751 (16)	0.43708 (7)	0.0240 (4)
C14	1.01833 (11)	0.29722 (16)	0.45140 (7)	0.0304 (4)
H14	1.0579	0.2909	0.4740	0.036*
C15	0.99832 (12)	0.40388 (18)	0.43376 (9)	0.0390 (5)
H15	1.0236	0.4696	0.4448	0.047*
C16	0.94210 (12)	0.41587 (19)	0.40029 (9)	0.0427 (6)
H16	0.9291	0.4892	0.3874	0.051*
C17	0.90491 (12)	0.32050 (19)	0.38570 (8)	0.0382 (5)
H17	0.8659	0.3282	0.3627	0.046*
C18	0.92386 (10)	0.21293 (17)	0.40430 (7)	0.0280 (4)
H18	0.8967	0.1484	0.3946	0.034*
C19	0.86269 (9)	−0.06475 (16)	0.46070 (6)	0.0237 (4)
C20	0.82663 (9)	0.03413 (16)	0.47541 (7)	0.0263 (4)
H20	0.8517	0.1014	0.4844	0.032*
C21	0.75461 (10)	0.03493 (18)	0.47697 (8)	0.0314 (4)
H21	0.7306	0.1022	0.4876	0.038*
C22	0.71758 (10)	−0.06199 (19)	0.46314 (8)	0.0344 (4)
H22	0.6682	−0.0612	0.4639	0.041*
C23	0.75253 (10)	−0.15974 (18)	0.44826 (8)	0.0328 (4)
H23	0.7271	−0.2259	0.4381	0.039*
C24	0.82462 (10)	−0.16246 (17)	0.44795 (7)	0.0280 (4)
H24	0.8482	−0.2313	0.4390	0.034*
C25	0.98791 (10)	−0.18291 (16)	0.42454 (7)	0.0243 (4)
C26	0.95519 (11)	−0.21012 (17)	0.37607 (7)	0.0295 (4)
H26	0.9138	−0.1714	0.3660	0.035*
C27	0.98292 (11)	−0.29323 (18)	0.34282 (8)	0.0359 (5)
H27	0.9600	−0.3124	0.3104	0.043*
C28	1.04372 (12)	−0.34830 (17)	0.35668 (8)	0.0385 (5)
H28	1.0624	−0.4054	0.3338	0.046*
C29	1.07740 (11)	−0.32094 (17)	0.40355 (8)	0.0337 (5)
H29	1.1197	−0.3581	0.4126	0.040*
C30	1.04967 (10)	−0.23923 (16)	0.43754 (7)	0.0268 (4)
H30	1.0729	−0.2213	0.4700	0.032*
B1	1.01311 (10)	0.07717 (18)	0.45461 (7)	0.0212 (4)
P1	1.09614 (2)	0.02764 (4)	0.409099 (17)	0.02250 (11)
P2	0.95699 (2)	−0.06707 (4)	0.467327 (17)	0.02053 (10)

Atomic displacement parameters (Å²) top

	U¹¹	U²²	U³³	U¹²	U¹³	U²³
C31	0.079 (3)	0.089 (4)	0.126 (4)	−0.017 (3)	−0.022 (3)	−0.053 (3)
C32	0.098 (4)	0.128 (4)	0.048 (2)	−0.003 (3)	0.015 (2)	−0.035 (3)
C33	0.081 (3)	0.080 (3)	0.069 (3)	−0.027 (2)	0.015 (2)	−0.019 (2)
C34	0.048 (2)	0.089 (3)	0.0510 (19)	−0.013 (2)	0.0032 (16)	−0.0253 (19)
C1	0.0280 (9)	0.0259 (10)	0.0200 (8)	−0.0036 (8)	0.0021 (7)	0.0005 (7)
C2	0.0311 (10)	0.0355 (11)	0.0256 (9)	0.0051 (9)	−0.0015 (8)	−0.0013 (8)
C3	0.0369 (11)	0.0464 (13)	0.0260 (9)	0.0042 (10)	−0.0062 (8)	0.0006 (9)
C4	0.0420 (12)	0.0480 (13)	0.0207 (9)	−0.0042 (10)	−0.0003 (8)	−0.0058 (9)
C5	0.0399 (12)	0.0422 (13)	0.0285 (10)	0.0029 (10)	0.0061 (8)	−0.0082 (9)
C6	0.0287 (10)	0.0343 (11)	0.0294 (9)	0.0007 (9)	0.0010 (8)	−0.0022 (8)
C7	0.0261 (9)	0.0268 (10)	0.0243 (9)	−0.0006 (8)	0.0043 (7)	−0.0015 (7)
C8	0.0293 (10)	0.0337 (11)	0.0267 (9)	−0.0032 (8)	0.0019 (8)	0.0003 (8)
C9	0.0321 (11)	0.0420 (12)	0.0387 (11)	−0.0092 (9)	0.0044 (9)	−0.0064 (10)
C10	0.0395 (12)	0.0311 (12)	0.0535 (13)	−0.0086 (10)	0.0155 (10)	0.0006 (10)
C11	0.0370 (12)	0.0322 (12)	0.0458 (12)	0.0028 (9)	0.0100 (10)	0.0113 (9)
C12	0.0271 (10)	0.0330 (11)	0.0355 (10)	−0.0004 (8)	0.0028 (8)	0.0068 (9)
C13	0.0284 (9)	0.0237 (9)	0.0199 (8)	0.0006 (8)	0.0053 (7)	0.0009 (7)
C14	0.0389 (11)	0.0246 (10)	0.0276 (9)	−0.0031 (9)	0.0080 (8)	0.0011 (8)
C15	0.0532 (13)	0.0237 (11)	0.0401 (11)	−0.0005 (10)	0.0192 (10)	0.0018 (9)
C16	0.0525 (13)	0.0302 (12)	0.0455 (12)	0.0149 (10)	0.0232 (10)	0.0159 (10)
C17	0.0359 (11)	0.0462 (13)	0.0324 (10)	0.0167 (10)	0.0111 (9)	0.0150 (9)
C18	0.0290 (10)	0.0321 (10)	0.0229 (8)	0.0056 (8)	0.0054 (7)	0.0043 (8)
C19	0.0248 (8)	0.0265 (9)	0.0198 (8)	−0.0023 (8)	−0.0019 (7)	0.0022 (7)
C20	0.0278 (9)	0.0252 (10)	0.0257 (8)	−0.0013 (8)	−0.0036 (7)	0.0019 (7)
C21	0.0294 (10)	0.0317 (11)	0.0331 (10)	0.0033 (8)	−0.0045 (8)	0.0013 (8)
C22	0.0230 (9)	0.0424 (12)	0.0379 (10)	−0.0015 (9)	−0.0057 (8)	0.0018 (9)
C23	0.0290 (10)	0.0330 (11)	0.0363 (10)	−0.0093 (9)	−0.0073 (8)	0.0008 (9)
C24	0.0289 (10)	0.0267 (10)	0.0285 (9)	−0.0021 (8)	−0.0035 (8)	0.0012 (8)
C25	0.0300 (10)	0.0207 (9)	0.0221 (8)	−0.0051 (8)	0.0038 (7)	−0.0002 (7)
C26	0.0335 (10)	0.0294 (10)	0.0255 (9)	−0.0058 (9)	0.0008 (8)	−0.0008 (7)
C27	0.0471 (13)	0.0333 (11)	0.0271 (9)	−0.0123 (10)	0.0023 (9)	−0.0075 (8)
C28	0.0524 (13)	0.0265 (11)	0.0367 (11)	−0.0033 (10)	0.0130 (10)	−0.0102 (9)
C29	0.0394 (11)	0.0244 (10)	0.0375 (11)	0.0005 (8)	0.0080 (9)	0.0003 (8)
C30	0.0306 (10)	0.0236 (10)	0.0263 (9)	−0.0034 (8)	0.0037 (8)	0.0015 (7)
B1	0.0235 (9)	0.0220 (10)	0.0182 (9)	−0.0021 (8)	−0.0006 (7)	0.0005 (7)
P1	0.0239 (2)	0.0231 (2)	0.0206 (2)	0.0002 (2)	−0.00034 (18)	0.00079 (18)
P2	0.0229 (2)	0.0195 (2)	0.01925 (19)	−0.00212 (19)	−0.00134 (18)	−0.00060 (17)

Geometric parameters (Å, º) top

O1A—C34	1.431 (3)	C12—H12	0.9500
O1A—C31	1.433 (4)	C13—C18	1.400 (3)
O1B—C34	1.429 (3)	C13—C14	1.405 (3)
O1B—C31	1.430 (4)	C13—B1	1.590 (3)
C31—C32	1.470 (3)	C14—C15	1.378 (3)
C31—H31A	0.9900	C14—H14	0.9500
C31—H31B	0.9900	C15—C16	1.374 (3)
C31—H31C	0.9900	C15—H15	0.9500
C31—H31D	0.9900	C16—C17	1.374 (3)
C32—C33	1.471 (3)	C16—H16	0.9500
C32—H32A	0.9900	C17—C18	1.390 (3)
C32—H32B	0.9900	C17—H17	0.9500
C33—C34	1.472 (3)	C18—H18	0.9500
C33—H33A	0.9900	C19—C24	1.394 (3)
C33—H33B	0.9900	C19—C20	1.398 (3)
C34—H34A	0.9900	C19—P2	1.8222 (18)
C34—H34B	0.9900	C20—C21	1.386 (3)
C34—H34C	0.9900	C20—H20	0.9500
C34—H34D	0.9900	C21—C22	1.383 (3)
C1—C2	1.387 (3)	C21—H21	0.9500
C1—C6	1.390 (3)	C22—C23	1.377 (3)
C1—P1	1.8455 (18)	C22—H22	0.9500
C2—C3	1.386 (3)	C23—C24	1.388 (3)
C2—H2	0.9500	C23—H23	0.9500
C3—C4	1.377 (3)	C24—H24	0.9500
C3—H3	0.9500	C25—C30	1.397 (3)
C4—C5	1.382 (3)	C25—C26	1.401 (2)
C4—H4	0.9500	C25—P2	1.8251 (19)
C5—C6	1.385 (3)	C26—C27	1.385 (3)
C5—H5	0.9500	C26—H26	0.9500
C6—H6	0.9500	C27—C28	1.380 (3)
C7—C8	1.395 (3)	C27—H27	0.9500
C7—C12	1.396 (3)	C28—C29	1.376 (3)
C7—P1	1.8454 (19)	C28—H28	0.9500
C8—C9	1.388 (3)	C29—C30	1.385 (3)
C8—H8	0.9500	C29—H29	0.9500
C9—C10	1.377 (3)	C30—H30	0.9500
C9—H9	0.9500	B1—P2	2.028 (2)
C10—C11	1.383 (3)	B1—P2ⁱ	2.0361 (18)
C10—H10	0.9500	B1—P1	2.045 (2)
C11—C12	1.381 (3)	P2—B1ⁱ	2.0363 (18)
C11—H11	0.9500

C34—O1A—C31	103.7 (3)	C9—C10—H10	120.2
C34—O1B—C31	104.0 (3)	C11—C10—H10	120.2
O1B—C31—C32	112.7 (3)	C12—C11—C10	120.5 (2)
O1A—C31—C32	100.1 (4)	C12—C11—H11	119.8
O1B—C31—H31A	125.6	C10—C11—H11	119.8
O1A—C31—H31A	111.8	C11—C12—C7	120.84 (19)
C32—C31—H31A	111.8	C11—C12—H12	119.6
O1B—C31—H31B	81.0	C7—C12—H12	119.6
O1A—C31—H31B	111.8	C18—C13—C14	116.06 (17)
C32—C31—H31B	111.8	C18—C13—B1	125.14 (17)
H31A—C31—H31B	109.5	C14—C13—B1	118.58 (16)
O1B—C31—H31C	109.0	C15—C14—C13	122.1 (2)
O1A—C31—H31C	88.5	C15—C14—H14	119.0
C32—C31—H31C	109.0	C13—C14—H14	119.0
H31B—C31—H31C	129.5	C16—C15—C14	120.5 (2)
O1B—C31—H31D	109.0	C16—C15—H15	119.8
O1A—C31—H31D	138.9	C14—C15—H15	119.8
C32—C31—H31D	109.0	C15—C16—C17	119.23 (19)
H31A—C31—H31D	83.9	C15—C16—H16	120.4
H31C—C31—H31D	107.8	C17—C16—H16	120.4
C31—C32—C33	105.0 (3)	C16—C17—C18	120.6 (2)
C31—C32—H32A	110.8	C16—C17—H17	119.7
C33—C32—H32A	110.8	C18—C17—H17	119.7
C31—C32—H32B	110.8	C17—C18—C13	121.5 (2)
C33—C32—H32B	110.8	C17—C18—H18	119.3
H32A—C32—H32B	108.8	C13—C18—H18	119.3
C32—C33—C34	105.6 (3)	C24—C19—C20	118.51 (16)
C32—C33—H33A	110.6	C24—C19—P2	122.12 (14)
C34—C33—H33A	110.6	C20—C19—P2	118.87 (14)
C32—C33—H33B	110.6	C21—C20—C19	120.61 (18)
C34—C33—H33B	110.6	C21—C20—H20	119.7
H33A—C33—H33B	108.8	C19—C20—H20	119.7
O1B—C34—C33	112.1 (3)	C22—C21—C20	120.17 (19)
O1A—C34—C33	101.7 (3)	C22—C21—H21	119.9
O1B—C34—H34A	80.7	C20—C21—H21	119.9
O1A—C34—H34A	111.4	C23—C22—C21	119.75 (18)
C33—C34—H34A	111.4	C23—C22—H22	120.1
O1B—C34—H34B	127.1	C21—C22—H22	120.1
O1A—C34—H34B	111.4	C22—C23—C24	120.57 (18)
C33—C34—H34B	111.4	C22—C23—H23	119.7
H34A—C34—H34B	109.3	C24—C23—H23	119.7
O1B—C34—H34C	109.2	C23—C24—C19	120.35 (18)
O1A—C34—H34C	138.2	C23—C24—H24	119.8
C33—C34—H34C	109.2	C19—C24—H24	119.8
H34B—C34—H34C	82.8	C30—C25—C26	118.43 (17)
O1B—C34—H34D	109.2	C30—C25—P2	119.41 (13)
O1A—C34—H34D	86.8	C26—C25—P2	121.88 (15)
C33—C34—H34D	109.2	C27—C26—C25	120.28 (19)
H34A—C34—H34D	130.1	C27—C26—H26	119.9
H34C—C34—H34D	107.9	C25—C26—H26	119.9
C2—C1—C6	117.71 (17)	C28—C27—C26	120.24 (19)
C2—C1—P1	126.48 (14)	C28—C27—H27	119.9
C6—C1—P1	115.81 (14)	C26—C27—H27	119.9
C3—C2—C1	121.20 (19)	C29—C28—C27	120.29 (19)
C3—C2—H2	119.4	C29—C28—H28	119.9
C1—C2—H2	119.4	C27—C28—H28	119.9
C4—C3—C2	120.30 (19)	C28—C29—C30	120.0 (2)
C4—C3—H3	119.9	C28—C29—H29	120.0
C2—C3—H3	119.9	C30—C29—H29	120.0
C3—C4—C5	119.42 (18)	C29—C30—C25	120.69 (18)
C3—C4—H4	120.3	C29—C30—H30	119.7
C5—C4—H4	120.3	C25—C30—H30	119.7
C4—C5—C6	120.05 (19)	C13—B1—P2	125.41 (13)
C4—C5—H5	120.0	C13—B1—P2ⁱ	114.90 (12)
C6—C5—H5	120.0	P2—B1—P2ⁱ	87.27 (8)
C5—C6—C1	121.32 (19)	C13—B1—P1	113.00 (12)
C5—C6—H6	119.3	P2—B1—P1	105.52 (9)
C1—C6—H6	119.3	P2ⁱ—B1—P1	107.17 (9)
C8—C7—C12	117.86 (18)	C7—P1—C1	99.40 (8)
C8—C7—P1	117.71 (14)	C7—P1—B1	103.32 (8)
C12—C7—P1	124.38 (15)	C1—P1—B1	106.76 (8)
C9—C8—C7	121.03 (19)	C19—P2—C25	106.41 (9)
C9—C8—H8	119.5	C19—P2—B1	120.25 (8)
C7—C8—H8	119.5	C25—P2—B1	110.61 (8)
C10—C9—C8	120.13 (19)	C19—P2—B1ⁱ	111.67 (8)
C10—C9—H9	119.9	C25—P2—B1ⁱ	115.19 (8)
C8—C9—H9	119.9	B1—P2—B1ⁱ	92.73 (8)
C9—C10—C11	119.6 (2)

Symmetry code: (i) −x+2, −y, −z+1.

Experimental details

Crystal data
Chemical formula	C₆₀H₅₀B₂P₄·1.5C₄H₈O
M_r	1024.66
Crystal system, space group	Orthorhombic, Pbca
Temperature (K)	150
a, b, c (Å)	19.2421 (4), 11.6938 (2), 24.9769 (5)
V (Å³)	5620.13 (19)
Z	4
Radiation type	Mo Kα
µ (mm⁻¹)	0.18
Crystal size (mm)	0.35 × 0.28 × 0.20

Data collection
Diffractometer	Stoe IPDS II
Absorption correction	Numerical (X-SHAPE and X-RED32; Stoe & Cie, 2005)
T_min, T_max	0.927, 0.986
No. of measured, independent and observed [I > 2σ(I)] reflections	91233, 6705, 4392
R_int	0.072
(sin θ/λ)_max (Å⁻¹)	0.659

Refinement
R[F² > 2σ(F²)], wR(F²), S	0.041, 0.096, 0.87
No. of reflections	6705
No. of parameters	343
No. of restraints	9
H-atom treatment	H-atom parameters constrained
Δρ_max, Δρ_min (e Å⁻³)	0.64, −0.29

Computer programs: X-AREA (Stoe & Cie, 2005), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), XP in SHELXTL (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).

Acknowledgements

This work was supported by the Leibniz-Institut für Katalyse e.V. an der Universität Rostock.

References

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