organic compounds
(2,4-Dichlorophenyl)(diphenylphosphoryl)methanol
aKey Laboratory of Jiangxi University for Applied Chemistry and Chemical Biology, Yichun 336000, People's Republic of China, and bJiangxi Science & Technology Research Center for Work Safety, Nanchang 330046, People's Republic of China
*Correspondence e-mail: yc_mgq@ycu.jx.cn
In the title compound, C19H15Cl2O2P, the dihedral angle between the mean planes of the phenyl rings bonded to the P atom is 75.4 (1)°. In the crystal, molecules are linked into chains running along the a axis by intermolecular O—H⋯O hydrogen bonds. Molecules are further connected into a three-dimensional array by weak C—H⋯O interactions.
Related literature
For applications of the analogous compound (diphenylphosphinoyl)phenylmethanol, see: Clark et al. (2002). For related structures, see: Liu et al. (2007); Liu & Huo (2008).
Experimental
Crystal data
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Refinement
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Data collection: SMART (Bruker, 2001); cell SAINT (Bruker, 2001); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 1997); software used to prepare material for publication: SHELXL97.
Supporting information
https://doi.org/10.1107/S1600536809055548/pv2247sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536809055548/pv2247Isup2.hkl
To a solution of 2, 4-dichlorobenzaldehyde (0.35 g, 2.0 mmol) and diphenylphosphine oxide (0.40 g, 2.0 mmol) in tetrahydrofuran (10 ml) at 273 K was added dropwise triethylamine (0.03 ml, 2 mmol). The cooling bath was removed and the mixture warmed to ambient temperature for 2 h. The solvent was concentrated under vacuum and the crude product was purified by recrystallization in methanol to give the title compound as a white solid in 80% yield. Single crystals of (I) were obtained by slow evaporation of a methanol solution.
All H atoms were placed in geometrically idealized positions and constrained to ride on their parent atoms, with C—H = 0.93 Å (aromatic), 0.98 Å (methine), O—H = 0.82 Å, and Uiso(H) = 1.2Ueq(c) and 1.5Ueq(O).
The title compound, (I), is an analog of (diphenylphosphinoyl)phenylmethanol, which was employed as a ligand in the rhodium-catalyzed hydroformylation of
with good conversions and regioselectivities (Clark et al., 2002).The molecular structure of (I) is shown in Fig. 1. Bond lengths and angles in (I) are in agreement with those reported for similar compounds (Liu et al., 2007; Liu et al., 2008). The dihedral angle between the mean-planes of the phenyl rings (C8—C13) and (C14—C19) bonded to P-atoms is 75.4 (1)°. A strong O—H···O hydrogen bond involving the hydroxyl group link the molecules into a chain running along the a axis (Table 1). Molecules are further connected into a three-dimensional array by non-classical and rather weak C—H···O intermolecular hydrogen-bonding interactions.
For applications of the analogous compound (diphenylphosphinoyl)phenylmethanol, see: Clark et al. (2002). For related structures, see: Liu et al. (2007, 2008).
Data collection: SMART (Bruker, 2001); cell
SAINT (Bruker, 2001); data reduction: SAINT (Bruker, 2001); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 1997); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008).Fig. 1. The molecular structure of (I), showing 50% probability displacement ellipsoids (arbitrary spheres for H atoms). |
C19H15Cl2O2P | F(000) = 776 |
Mr = 377.18 | Dx = 1.333 Mg m−3 |
Monoclinic, P21/n | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2yn | Cell parameters from 1526 reflections |
a = 8.8157 (18) Å | θ = 3.3–27.5° |
b = 11.334 (2) Å | µ = 0.44 mm−1 |
c = 19.262 (4) Å | T = 293 K |
β = 102.41 (3)° | Plate, colorless |
V = 1879.6 (7) Å3 | 0.30 × 0.23 × 0.12 mm |
Z = 4 |
Bruker APEX area-detector diffractometer | 3680 independent reflections |
Radiation source: fine-focus sealed tube | 2783 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.025 |
φ and ω scans | θmax = 26.0°, θmin = 3.3° |
Absorption correction: multi-scan (SADABS; Bruker, 2001) | h = −10→10 |
Tmin = 0.880, Tmax = 0.949 | k = −13→13 |
15866 measured reflections | l = −23→23 |
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)] = 0.049 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.156 | H-atom parameters constrained |
S = 1.11 | w = 1/[σ2(Fo2) + (0.0771P)2 + 0.5515P] where P = (Fo2 + 2Fc2)/3 |
3680 reflections | (Δ/σ)max < 0.001 |
217 parameters | Δρmax = 0.43 e Å−3 |
0 restraints | Δρmin = −0.44 e Å−3 |
C19H15Cl2O2P | V = 1879.6 (7) Å3 |
Mr = 377.18 | Z = 4 |
Monoclinic, P21/n | Mo Kα radiation |
a = 8.8157 (18) Å | µ = 0.44 mm−1 |
b = 11.334 (2) Å | T = 293 K |
c = 19.262 (4) Å | 0.30 × 0.23 × 0.12 mm |
β = 102.41 (3)° |
Bruker APEX area-detector diffractometer | 3680 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2001) | 2783 reflections with I > 2σ(I) |
Tmin = 0.880, Tmax = 0.949 | Rint = 0.025 |
15866 measured reflections |
R[F2 > 2σ(F2)] = 0.049 | 0 restraints |
wR(F2) = 0.156 | H-atom parameters constrained |
S = 1.11 | Δρmax = 0.43 e Å−3 |
3680 reflections | Δρmin = −0.44 e Å−3 |
217 parameters |
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. |
x | y | z | Uiso*/Ueq | ||
P1 | 0.63438 (6) | 0.94073 (5) | 0.21088 (4) | 0.0543 (2) | |
Cl1 | 0.99338 (10) | 0.89244 (14) | 0.36475 (6) | 0.1424 (5) | |
Cl2 | 0.66962 (19) | 0.89703 (11) | 0.57032 (6) | 0.1442 (5) | |
C1 | 0.6904 (2) | 0.80652 (19) | 0.26412 (15) | 0.0612 (6) | |
H1A | 0.7951 | 0.7831 | 0.2601 | 0.073* | |
C2 | 0.6902 (3) | 0.8293 (2) | 0.34053 (15) | 0.0661 (6) | |
C3 | 0.8186 (4) | 0.8676 (3) | 0.38994 (19) | 0.0881 (9) | |
C4 | 0.8124 (5) | 0.8865 (3) | 0.4608 (2) | 0.1068 (12) | |
H4A | 0.9007 | 0.9108 | 0.4934 | 0.128* | |
C5 | 0.6769 (5) | 0.8695 (3) | 0.48191 (19) | 0.0970 (10) | |
C6 | 0.5478 (5) | 0.8317 (3) | 0.4349 (2) | 0.1001 (11) | |
H6A | 0.4555 | 0.8194 | 0.4499 | 0.120* | |
C7 | 0.5547 (3) | 0.8117 (3) | 0.36529 (18) | 0.0799 (8) | |
H7A | 0.4660 | 0.7856 | 0.3337 | 0.096* | |
C8 | 0.4292 (2) | 0.95822 (18) | 0.20306 (12) | 0.0524 (5) | |
C9 | 0.3801 (3) | 1.0514 (2) | 0.24046 (15) | 0.0701 (7) | |
H9A | 0.4526 | 1.1014 | 0.2679 | 0.084* | |
C10 | 0.2238 (3) | 1.0687 (3) | 0.23653 (17) | 0.0839 (9) | |
H10A | 0.1909 | 1.1313 | 0.2608 | 0.101* | |
C11 | 0.1173 (3) | 0.9947 (3) | 0.19732 (17) | 0.0839 (9) | |
H11A | 0.0122 | 1.0067 | 0.1955 | 0.101* | |
C12 | 0.1633 (3) | 0.9022 (3) | 0.16022 (17) | 0.0781 (8) | |
H12A | 0.0896 | 0.8523 | 0.1334 | 0.094* | |
C13 | 0.3199 (3) | 0.8840 (2) | 0.16314 (14) | 0.0618 (6) | |
H13A | 0.3516 | 0.8217 | 0.1382 | 0.074* | |
C14 | 0.6700 (3) | 0.9144 (2) | 0.12355 (16) | 0.0662 (6) | |
C15 | 0.6984 (4) | 1.0121 (3) | 0.08557 (17) | 0.0890 (9) | |
H15A | 0.6956 | 1.0868 | 0.1053 | 0.107* | |
C16 | 0.7307 (5) | 1.0012 (4) | 0.0193 (2) | 0.1152 (12) | |
H16A | 0.7501 | 1.0682 | −0.0053 | 0.138* | |
C17 | 0.7344 (5) | 0.8922 (5) | −0.0107 (2) | 0.1150 (13) | |
H17A | 0.7546 | 0.8846 | −0.0559 | 0.138* | |
C18 | 0.7083 (5) | 0.7958 (4) | 0.0261 (3) | 0.1295 (16) | |
H18A | 0.7117 | 0.7216 | 0.0059 | 0.155* | |
C19 | 0.6763 (5) | 0.8045 (3) | 0.0935 (2) | 0.1076 (12) | |
H19A | 0.6594 | 0.7369 | 0.1181 | 0.129* | |
O1 | 0.7200 (2) | 1.04574 (14) | 0.24533 (11) | 0.0708 (5) | |
O2 | 0.58404 (18) | 0.71745 (13) | 0.23355 (11) | 0.0705 (5) | |
H2A | 0.6292 | 0.6539 | 0.2359 | 0.106* |
U11 | U22 | U33 | U12 | U13 | U23 | |
P1 | 0.0408 (3) | 0.0380 (3) | 0.0837 (4) | −0.0029 (2) | 0.0128 (3) | 0.0001 (3) |
Cl1 | 0.0633 (5) | 0.2302 (15) | 0.1210 (8) | −0.0437 (7) | −0.0081 (5) | 0.0291 (8) |
Cl2 | 0.2145 (15) | 0.1219 (9) | 0.1001 (7) | 0.0202 (9) | 0.0428 (8) | 0.0175 (6) |
C1 | 0.0386 (11) | 0.0413 (11) | 0.1017 (19) | 0.0011 (8) | 0.0105 (11) | 0.0028 (11) |
C2 | 0.0552 (13) | 0.0450 (12) | 0.0951 (19) | 0.0006 (10) | 0.0097 (12) | 0.0127 (12) |
C3 | 0.0698 (18) | 0.090 (2) | 0.098 (2) | −0.0106 (15) | 0.0030 (15) | 0.0224 (18) |
C4 | 0.111 (3) | 0.103 (3) | 0.092 (2) | −0.011 (2) | −0.009 (2) | 0.021 (2) |
C5 | 0.125 (3) | 0.073 (2) | 0.094 (2) | 0.006 (2) | 0.025 (2) | 0.0176 (17) |
C6 | 0.105 (3) | 0.084 (2) | 0.122 (3) | 0.0023 (19) | 0.046 (2) | 0.014 (2) |
C7 | 0.0708 (17) | 0.0644 (16) | 0.108 (2) | −0.0025 (13) | 0.0265 (15) | 0.0054 (15) |
C8 | 0.0456 (11) | 0.0439 (11) | 0.0677 (13) | 0.0078 (8) | 0.0121 (9) | 0.0042 (10) |
C9 | 0.0613 (15) | 0.0642 (15) | 0.0818 (17) | 0.0153 (12) | 0.0088 (12) | −0.0097 (13) |
C10 | 0.0691 (18) | 0.094 (2) | 0.0890 (19) | 0.0313 (15) | 0.0182 (15) | −0.0146 (16) |
C11 | 0.0480 (14) | 0.109 (2) | 0.095 (2) | 0.0237 (15) | 0.0167 (13) | −0.0002 (18) |
C12 | 0.0464 (14) | 0.0899 (19) | 0.094 (2) | −0.0003 (12) | 0.0063 (13) | −0.0071 (16) |
C13 | 0.0474 (12) | 0.0583 (13) | 0.0789 (16) | 0.0034 (10) | 0.0118 (11) | −0.0054 (12) |
C14 | 0.0440 (12) | 0.0645 (15) | 0.0914 (18) | −0.0019 (10) | 0.0178 (11) | −0.0042 (13) |
C15 | 0.106 (2) | 0.078 (2) | 0.082 (2) | 0.0025 (17) | 0.0163 (17) | 0.0079 (16) |
C16 | 0.143 (3) | 0.115 (3) | 0.091 (2) | −0.003 (3) | 0.031 (2) | 0.016 (2) |
C17 | 0.105 (3) | 0.146 (4) | 0.101 (3) | −0.002 (3) | 0.038 (2) | −0.013 (3) |
C18 | 0.150 (4) | 0.108 (3) | 0.155 (4) | −0.013 (3) | 0.088 (3) | −0.043 (3) |
C19 | 0.127 (3) | 0.079 (2) | 0.140 (3) | −0.0133 (19) | 0.081 (3) | −0.023 (2) |
O1 | 0.0637 (10) | 0.0464 (9) | 0.0993 (13) | −0.0165 (7) | 0.0111 (9) | −0.0006 (8) |
O2 | 0.0504 (9) | 0.0381 (8) | 0.1200 (15) | 0.0003 (6) | 0.0116 (9) | 0.0005 (9) |
P1—O1 | 1.4872 (17) | C9—H9A | 0.9300 |
P1—C8 | 1.794 (2) | C10—C11 | 1.360 (4) |
P1—C14 | 1.801 (3) | C10—H10A | 0.9300 |
P1—C1 | 1.842 (2) | C11—C12 | 1.378 (4) |
Cl1—C3 | 1.735 (3) | C11—H11A | 0.9300 |
Cl2—C5 | 1.746 (4) | C12—C13 | 1.385 (3) |
C1—O2 | 1.417 (3) | C12—H12A | 0.9300 |
C1—C2 | 1.495 (4) | C13—H13A | 0.9300 |
C1—H1A | 0.9800 | C14—C15 | 1.379 (4) |
C2—C3 | 1.383 (4) | C14—C19 | 1.380 (4) |
C2—C7 | 1.393 (4) | C15—C16 | 1.372 (5) |
C3—C4 | 1.394 (5) | C15—H15A | 0.9300 |
C4—C5 | 1.356 (5) | C16—C17 | 1.368 (6) |
C4—H4A | 0.9300 | C16—H16A | 0.9300 |
C5—C6 | 1.363 (5) | C17—C18 | 1.349 (6) |
C6—C7 | 1.374 (5) | C17—H17A | 0.9300 |
C6—H6A | 0.9300 | C18—C19 | 1.389 (5) |
C7—H7A | 0.9300 | C18—H18A | 0.9300 |
C8—C13 | 1.382 (3) | C19—H19A | 0.9300 |
C8—C9 | 1.398 (3) | O2—H2A | 0.8200 |
C9—C10 | 1.378 (4) | ||
O1—P1—C8 | 110.82 (11) | C10—C9—H9A | 120.1 |
O1—P1—C14 | 112.05 (11) | C8—C9—H9A | 120.1 |
C8—P1—C14 | 108.36 (11) | C11—C10—C9 | 120.3 (3) |
O1—P1—C1 | 111.28 (11) | C11—C10—H10A | 119.8 |
C8—P1—C1 | 106.43 (10) | C9—C10—H10A | 119.8 |
C14—P1—C1 | 107.67 (12) | C10—C11—C12 | 120.8 (2) |
O2—C1—C2 | 113.1 (2) | C10—C11—H11A | 119.6 |
O2—C1—P1 | 106.44 (16) | C12—C11—H11A | 119.6 |
C2—C1—P1 | 110.43 (16) | C11—C12—C13 | 119.6 (3) |
O2—C1—H1A | 108.9 | C11—C12—H12A | 120.2 |
C2—C1—H1A | 108.9 | C13—C12—H12A | 120.2 |
P1—C1—H1A | 108.9 | C8—C13—C12 | 120.1 (2) |
C3—C2—C7 | 116.4 (3) | C8—C13—H13A | 120.0 |
C3—C2—C1 | 123.9 (2) | C12—C13—H13A | 120.0 |
C7—C2—C1 | 119.7 (2) | C15—C14—C19 | 118.3 (3) |
C2—C3—C4 | 121.5 (3) | C15—C14—P1 | 116.8 (2) |
C2—C3—Cl1 | 120.2 (3) | C19—C14—P1 | 124.9 (2) |
C4—C3—Cl1 | 118.2 (3) | C16—C15—C14 | 121.2 (3) |
C5—C4—C3 | 119.7 (3) | C16—C15—H15A | 119.4 |
C5—C4—H4A | 120.2 | C14—C15—H15A | 119.4 |
C3—C4—H4A | 120.2 | C17—C16—C15 | 120.2 (4) |
C4—C5—C6 | 120.6 (4) | C17—C16—H16A | 119.9 |
C4—C5—Cl2 | 119.2 (3) | C15—C16—H16A | 119.9 |
C6—C5—Cl2 | 120.2 (3) | C18—C17—C16 | 119.1 (4) |
C5—C6—C7 | 119.6 (3) | C18—C17—H17A | 120.4 |
C5—C6—H6A | 120.2 | C16—C17—H17A | 120.4 |
C7—C6—H6A | 120.2 | C17—C18—C19 | 121.7 (4) |
C6—C7—C2 | 122.1 (3) | C17—C18—H18A | 119.1 |
C6—C7—H7A | 118.9 | C19—C18—H18A | 119.1 |
C2—C7—H7A | 118.9 | C14—C19—C18 | 119.4 (4) |
C13—C8—C9 | 119.4 (2) | C14—C19—H19A | 120.3 |
C13—C8—P1 | 123.32 (17) | C18—C19—H19A | 120.3 |
C9—C8—P1 | 117.30 (19) | C1—O2—H2A | 109.5 |
C10—C9—C8 | 119.8 (3) | ||
O1—P1—C1—O2 | 170.00 (15) | O1—P1—C8—C9 | −11.8 (2) |
C8—P1—C1—O2 | 49.18 (19) | C14—P1—C8—C9 | −135.1 (2) |
C14—P1—C1—O2 | −66.84 (18) | C1—P1—C8—C9 | 109.4 (2) |
O1—P1—C1—C2 | 46.92 (18) | C13—C8—C9—C10 | −0.6 (4) |
C8—P1—C1—C2 | −73.91 (18) | P1—C8—C9—C10 | −179.8 (2) |
C14—P1—C1—C2 | 170.08 (15) | C8—C9—C10—C11 | 0.9 (5) |
O2—C1—C2—C3 | 150.1 (2) | C9—C10—C11—C12 | −0.8 (5) |
P1—C1—C2—C3 | −90.8 (3) | C10—C11—C12—C13 | 0.3 (5) |
O2—C1—C2—C7 | −29.9 (3) | C9—C8—C13—C12 | 0.2 (4) |
P1—C1—C2—C7 | 89.2 (2) | P1—C8—C13—C12 | 179.3 (2) |
C7—C2—C3—C4 | 0.5 (4) | C11—C12—C13—C8 | 0.0 (4) |
C1—C2—C3—C4 | −179.5 (3) | O1—P1—C14—C15 | −31.3 (3) |
C7—C2—C3—Cl1 | −179.9 (2) | C8—P1—C14—C15 | 91.3 (2) |
C1—C2—C3—Cl1 | 0.1 (4) | C1—P1—C14—C15 | −153.9 (2) |
C2—C3—C4—C5 | −1.3 (5) | O1—P1—C14—C19 | 146.3 (3) |
Cl1—C3—C4—C5 | 179.1 (3) | C8—P1—C14—C19 | −91.1 (3) |
C3—C4—C5—C6 | 1.4 (6) | C1—P1—C14—C19 | 23.6 (3) |
C3—C4—C5—Cl2 | −178.5 (3) | C19—C14—C15—C16 | 0.6 (5) |
C4—C5—C6—C7 | −0.6 (6) | P1—C14—C15—C16 | 178.3 (3) |
Cl2—C5—C6—C7 | 179.2 (3) | C14—C15—C16—C17 | 0.4 (6) |
C5—C6—C7—C2 | −0.2 (5) | C15—C16—C17—C18 | −1.0 (7) |
C3—C2—C7—C6 | 0.3 (4) | C16—C17—C18—C19 | 0.6 (7) |
C1—C2—C7—C6 | −179.7 (3) | C15—C14—C19—C18 | −1.0 (6) |
O1—P1—C8—C13 | 169.1 (2) | P1—C14—C19—C18 | −178.6 (3) |
C14—P1—C8—C13 | 45.8 (2) | C17—C18—C19—C14 | 0.4 (7) |
C1—P1—C8—C13 | −69.8 (2) |
D—H···A | D—H | H···A | D···A | D—H···A |
O2—H2A···O1i | 0.82 | 1.79 | 2.576 (2) | 161 |
C10—H10A···O2ii | 0.93 | 2.64 | 3.348 (3) | 134 |
C1—H1A···O1i | 0.98 | 2.69 | 3.075 (3) | 104 |
Symmetry codes: (i) −x+3/2, y−1/2, −z+1/2; (ii) −x+1/2, y+1/2, −z+1/2. |
Experimental details
Crystal data | |
Chemical formula | C19H15Cl2O2P |
Mr | 377.18 |
Crystal system, space group | Monoclinic, P21/n |
Temperature (K) | 293 |
a, b, c (Å) | 8.8157 (18), 11.334 (2), 19.262 (4) |
β (°) | 102.41 (3) |
V (Å3) | 1879.6 (7) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.44 |
Crystal size (mm) | 0.30 × 0.23 × 0.12 |
Data collection | |
Diffractometer | Bruker APEX area-detector diffractometer |
Absorption correction | Multi-scan (SADABS; Bruker, 2001) |
Tmin, Tmax | 0.880, 0.949 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 15866, 3680, 2783 |
Rint | 0.025 |
(sin θ/λ)max (Å−1) | 0.617 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.049, 0.156, 1.11 |
No. of reflections | 3680 |
No. of parameters | 217 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.43, −0.44 |
Computer programs: SMART (Bruker, 2001), SAINT (Bruker, 2001), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), ORTEP-3 for Windows (Farrugia, 1997).
D—H···A | D—H | H···A | D···A | D—H···A |
O2—H2A···O1i | 0.82 | 1.79 | 2.576 (2) | 161.0 |
C10—H10A···O2ii | 0.93 | 2.64 | 3.348 (3) | 133.8 |
C1—H1A···O1i | 0.98 | 2.69 | 3.075 (3) | 103.5 |
Symmetry codes: (i) −x+3/2, y−1/2, −z+1/2; (ii) −x+1/2, y+1/2, −z+1/2. |
Acknowledgements
The authors thank the Technical Project of the Department of Education of Jiangxi Province of China (Nos. GJJ08528 and GJJ09355) for supporting this work. We also thank the Hunan Provincial University Key Laboratory of QSAR/QSPR for providing technical assistance.
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The title compound, (I), is an analog of (diphenylphosphinoyl)phenylmethanol, which was employed as a ligand in the rhodium-catalyzed hydroformylation of alkenes, with good conversions and regioselectivities (Clark et al., 2002).
The molecular structure of (I) is shown in Fig. 1. Bond lengths and angles in (I) are in agreement with those reported for similar compounds (Liu et al., 2007; Liu et al., 2008). The dihedral angle between the mean-planes of the phenyl rings (C8—C13) and (C14—C19) bonded to P-atoms is 75.4 (1)°. A strong O—H···O hydrogen bond involving the hydroxyl group link the molecules into a chain running along the a axis (Table 1). Molecules are further connected into a three-dimensional array by non-classical and rather weak C—H···O intermolecular hydrogen-bonding interactions.