In the crystal structure of the title compound, C
24H
26O
3, (I), there are three different O—H
O hydrogen bonds, which individually form chains of
C(10),
C(12) and
C(16) types. The combined effect of all these hydrogen bonds is the formation of a three-dimensional network, which is additionally stabilized by a single intermolecular C—H
π interaction. The significance of this study lies in the comparison drawn between the molecular structure of (I) and those of several of its analogues, which shows a close similarity in the almost perpendicular orientation of the benzene rings.
Supporting information
CCDC reference: 686452
A crystal of (I) [or Crystals of (I)?] suitable for X-ray diffraction
measurement was obtained from solution by slow evaporation of ethanol used as
a solvent at a constant temperature of 279 K.
All aromatic H atoms were positioned geometrically and constrained to ride on
their parent atoms, with C—H distances of 0.93 Å and with Uiso(H)
values of 1.2Ueq(C). H atoms of hydroxy and methyl groups were
located in difference maps and refined isotropically, giving O—H distances
in the range 0.87 (4)–0.92 (3) Å and C—H distances of 0.94 (4)–1.03 (4) Å.
In the absence of significant resonant scattering, the Flack (1983) parameter
was indeterminate (Flack & Bernardinelli, 2000), and the Friedel equivalent
reflections were merged prior to the final refinement.
Data collection: CrysAlis CCD (Oxford Diffraction, 2004); cell refinement: CrysAlis RED (Oxford Diffraction, 2005); data reduction: CrysAlis RED (Oxford Diffraction, 2005); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: PLATON (Spek,2003) and DIAMOND (Brandenburg, 2006); software used to prepare material for publication: publCIF (Westrip, 2008).
2,4-Bis[1-(4-hydroxyphenyl)-1-methylethyl]phenol
top
Crystal data top
C24H26O3 | F(000) = 776 |
Mr = 362.45 | Dx = 1.217 Mg m−3 |
Monoclinic, Cc | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: C -2yc | Cell parameters from 7160 reflections |
a = 6.2143 (2) Å | θ = 3.7–28.5° |
b = 15.3978 (5) Å | µ = 0.08 mm−1 |
c = 20.7130 (7) Å | T = 290 K |
β = 93.729 (3)° | Plate, colourless |
V = 1977.76 (11) Å3 | 0.30 × 0.27 × 0.07 mm |
Z = 4 | |
Data collection top
Oxford Diffraction Xcalibur3 CCD diffractometer | 1729 reflections with I > 2σ(I) |
Radiation source: fine-focus sealed tube | Rint = 0.027 |
Graphite monochromator | θmax = 28.5°, θmin = 3.7° |
ω scans | h = −4→8 |
7160 measured reflections | k = −20→20 |
2469 independent reflections | l = −27→27 |
Refinement top
Refinement on F2 | Secondary atom site location: difference Fourier map |
Least-squares matrix: full | Hydrogen site location: inferred from neighbouring sites |
R[F2 > 2σ(F2)] = 0.033 | H atoms treated by a mixture of independent and constrained refinement |
wR(F2) = 0.082 | w = 1/[σ2(Fo2) + (0.037P)2] where P = (Fo2 + 2Fc2)/3 |
S = 1.08 | (Δ/σ)max < 0.001 |
2469 reflections | Δρmax = 0.12 e Å−3 |
305 parameters | Δρmin = −0.11 e Å−3 |
2 restraints | Extinction correction: SHELXL97 (Sheldrick, 2008), Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4 |
Primary atom site location: structure-invariant direct methods | Extinction coefficient: 0.0061 (10) |
Crystal data top
C24H26O3 | V = 1977.76 (11) Å3 |
Mr = 362.45 | Z = 4 |
Monoclinic, Cc | Mo Kα radiation |
a = 6.2143 (2) Å | µ = 0.08 mm−1 |
b = 15.3978 (5) Å | T = 290 K |
c = 20.7130 (7) Å | 0.30 × 0.27 × 0.07 mm |
β = 93.729 (3)° | |
Data collection top
Oxford Diffraction Xcalibur3 CCD diffractometer | 1729 reflections with I > 2σ(I) |
7160 measured reflections | Rint = 0.027 |
2469 independent reflections | |
Refinement top
R[F2 > 2σ(F2)] = 0.033 | 2 restraints |
wR(F2) = 0.082 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.08 | Δρmax = 0.12 e Å−3 |
2469 reflections | Δρmin = −0.11 e Å−3 |
305 parameters | |
Special details top
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 (Å2) top | x | y | z | Uiso*/Ueq | |
O1 | 0.5406 (3) | −0.02012 (11) | 0.37253 (9) | 0.0444 (5) | |
H1 | 0.644 (5) | −0.0497 (19) | 0.3517 (14) | 0.046 (8)* | |
O11 | 0.3346 (3) | 0.36520 (12) | 0.31969 (9) | 0.0421 (5) | |
H11 | 0.452 (6) | 0.368 (2) | 0.3444 (19) | 0.082 (12)* | |
O22 | 0.2115 (3) | 0.13003 (13) | −0.09752 (9) | 0.0493 (5) | |
H22 | 0.324 (6) | 0.095 (2) | −0.1009 (17) | 0.073 (11)* | |
C1 | 0.4471 (4) | 0.04760 (14) | 0.33657 (12) | 0.0341 (5) | |
C2 | 0.2680 (4) | 0.08643 (15) | 0.35965 (12) | 0.0370 (6) | |
H2 | 0.2163 | 0.0678 | 0.3984 | 0.044* | |
C3 | 0.1646 (4) | 0.15324 (16) | 0.32527 (12) | 0.0373 (6) | |
H3 | 0.0440 | 0.1790 | 0.3415 | 0.045* | |
C4 | 0.2362 (4) | 0.18258 (15) | 0.26741 (11) | 0.0322 (5) | |
C5 | 0.4198 (4) | 0.14290 (16) | 0.24596 (12) | 0.0379 (6) | |
H5 | 0.4735 | 0.1620 | 0.2076 | 0.046* | |
C6 | 0.5253 (4) | 0.07605 (16) | 0.27973 (13) | 0.0410 (6) | |
H6 | 0.6475 | 0.0507 | 0.2641 | 0.049* | |
C7 | 0.1159 (4) | 0.25118 (16) | 0.22496 (12) | 0.0353 (6) | |
C8 | −0.0735 (5) | 0.2919 (2) | 0.25791 (18) | 0.0512 (7) | |
H8A | −0.018 (5) | 0.319 (2) | 0.3016 (16) | 0.055 (8)* | |
H8B | −0.142 (6) | 0.336 (2) | 0.2310 (17) | 0.069 (10)* | |
H8C | −0.179 (5) | 0.249 (2) | 0.2671 (13) | 0.051 (8)* | |
C9 | 0.0197 (5) | 0.2034 (2) | 0.16419 (16) | 0.0490 (7) | |
H9A | −0.071 (5) | 0.155 (2) | 0.1803 (15) | 0.061 (9)* | |
H9B | −0.055 (5) | 0.249 (2) | 0.1370 (15) | 0.057 (8)* | |
H9C | 0.139 (7) | 0.176 (3) | 0.1388 (19) | 0.085 (12)* | |
C10 | 0.2722 (3) | 0.32353 (15) | 0.20750 (11) | 0.0319 (5) | |
C11 | 0.3749 (3) | 0.37685 (16) | 0.25467 (11) | 0.0324 (5) | |
C12 | 0.5089 (4) | 0.44322 (16) | 0.23846 (12) | 0.0372 (6) | |
H12 | 0.5710 | 0.4790 | 0.2707 | 0.045* | |
C13 | 0.5527 (4) | 0.45744 (16) | 0.17467 (11) | 0.0350 (6) | |
H13 | 0.6452 | 0.5021 | 0.1645 | 0.042* | |
C14 | 0.4591 (4) | 0.40529 (15) | 0.12558 (11) | 0.0328 (5) | |
C15 | 0.3191 (4) | 0.34027 (15) | 0.14352 (12) | 0.0338 (5) | |
H15 | 0.2529 | 0.3060 | 0.1111 | 0.041* | |
C16 | 0.5051 (4) | 0.42310 (17) | 0.05480 (12) | 0.0388 (6) | |
C17 | 0.3854 (7) | 0.5065 (2) | 0.03364 (18) | 0.0584 (9) | |
H17A | 0.226 (5) | 0.5046 (19) | 0.0364 (13) | 0.051 (8)* | |
H17B | 0.434 (5) | 0.557 (2) | 0.0574 (16) | 0.063 (9)* | |
H17C | 0.414 (6) | 0.515 (3) | −0.010 (2) | 0.092 (13)* | |
C18 | 0.7485 (6) | 0.4386 (3) | 0.05002 (17) | 0.0613 (9) | |
H18A | 0.786 (6) | 0.445 (2) | 0.005 (2) | 0.077 (10)* | |
H18B | 0.803 (6) | 0.491 (3) | 0.0760 (18) | 0.081 (11)* | |
H18C | 0.838 (7) | 0.393 (3) | 0.068 (2) | 0.095 (14)* | |
C19 | 0.4320 (4) | 0.34605 (16) | 0.01130 (11) | 0.0360 (6) | |
C20 | 0.2422 (4) | 0.34647 (18) | −0.02746 (13) | 0.0452 (7) | |
H20 | 0.1594 | 0.3968 | −0.0294 | 0.054* | |
C21 | 0.1703 (4) | 0.27551 (17) | −0.06331 (14) | 0.0482 (7) | |
H21 | 0.0417 | 0.2786 | −0.0888 | 0.058* | |
C22 | 0.2888 (4) | 0.20039 (17) | −0.06122 (12) | 0.0385 (6) | |
C23 | 0.4811 (5) | 0.1982 (2) | −0.02430 (15) | 0.0580 (8) | |
H23 | 0.5651 | 0.1482 | −0.0232 | 0.070* | |
C24 | 0.5490 (5) | 0.2701 (2) | 0.01098 (15) | 0.0579 (8) | |
H24 | 0.6794 | 0.2672 | 0.0356 | 0.070* | |
Atomic displacement parameters (Å2) top | U11 | U22 | U33 | U12 | U13 | U23 |
O1 | 0.0530 (11) | 0.0345 (10) | 0.0450 (11) | 0.0063 (9) | −0.0027 (9) | 0.0064 (8) |
O11 | 0.0441 (10) | 0.0495 (11) | 0.0321 (10) | −0.0020 (8) | −0.0023 (8) | −0.0019 (8) |
O22 | 0.0548 (12) | 0.0431 (11) | 0.0489 (12) | 0.0019 (9) | −0.0059 (9) | −0.0106 (9) |
C1 | 0.0405 (13) | 0.0263 (12) | 0.0345 (13) | −0.0018 (10) | −0.0037 (10) | 0.0020 (10) |
C2 | 0.0509 (15) | 0.0328 (13) | 0.0271 (13) | −0.0017 (11) | 0.0017 (10) | −0.0003 (10) |
C3 | 0.0426 (14) | 0.0335 (14) | 0.0362 (14) | 0.0038 (11) | 0.0063 (10) | −0.0046 (11) |
C4 | 0.0331 (12) | 0.0296 (13) | 0.0335 (13) | −0.0002 (10) | −0.0004 (9) | −0.0001 (10) |
C5 | 0.0376 (13) | 0.0376 (14) | 0.0391 (14) | 0.0015 (11) | 0.0060 (10) | 0.0084 (11) |
C6 | 0.0361 (13) | 0.0380 (15) | 0.0495 (16) | 0.0062 (11) | 0.0079 (11) | 0.0046 (12) |
C7 | 0.0352 (12) | 0.0307 (14) | 0.0390 (14) | 0.0014 (9) | −0.0058 (10) | 0.0029 (10) |
C8 | 0.0333 (14) | 0.0453 (17) | 0.075 (2) | 0.0061 (14) | 0.0015 (14) | 0.0054 (17) |
C9 | 0.0514 (18) | 0.0419 (17) | 0.0512 (18) | −0.0119 (14) | −0.0163 (14) | 0.0066 (14) |
C10 | 0.0349 (12) | 0.0262 (12) | 0.0337 (13) | 0.0054 (10) | −0.0036 (10) | −0.0009 (10) |
C11 | 0.0316 (12) | 0.0353 (14) | 0.0297 (13) | 0.0039 (10) | −0.0025 (9) | −0.0027 (10) |
C12 | 0.0405 (13) | 0.0354 (14) | 0.0347 (14) | 0.0013 (10) | −0.0047 (10) | −0.0077 (10) |
C13 | 0.0377 (12) | 0.0306 (13) | 0.0364 (15) | −0.0061 (10) | −0.0006 (10) | −0.0046 (11) |
C14 | 0.0354 (12) | 0.0311 (13) | 0.0313 (13) | 0.0046 (10) | −0.0025 (9) | −0.0015 (10) |
C15 | 0.0364 (13) | 0.0289 (13) | 0.0350 (13) | −0.0008 (9) | −0.0055 (10) | −0.0025 (10) |
C16 | 0.0462 (14) | 0.0404 (15) | 0.0289 (13) | −0.0047 (11) | −0.0048 (10) | 0.0010 (10) |
C17 | 0.089 (3) | 0.0381 (17) | 0.0461 (19) | 0.0001 (17) | −0.0117 (17) | 0.0037 (14) |
C18 | 0.058 (2) | 0.086 (3) | 0.041 (2) | −0.0192 (19) | 0.0080 (15) | −0.0067 (17) |
C19 | 0.0414 (13) | 0.0396 (14) | 0.0265 (12) | 0.0028 (11) | −0.0012 (10) | 0.0007 (10) |
C20 | 0.0431 (14) | 0.0429 (16) | 0.0484 (16) | 0.0109 (12) | −0.0076 (12) | −0.0067 (12) |
C21 | 0.0393 (14) | 0.0483 (17) | 0.0543 (17) | 0.0098 (12) | −0.0161 (12) | −0.0097 (13) |
C22 | 0.0462 (14) | 0.0384 (15) | 0.0307 (13) | 0.0002 (11) | 0.0010 (10) | −0.0050 (11) |
C23 | 0.0616 (18) | 0.0461 (17) | 0.063 (2) | 0.0259 (14) | −0.0187 (15) | −0.0146 (14) |
C24 | 0.0597 (17) | 0.0546 (18) | 0.0556 (18) | 0.0137 (14) | −0.0270 (14) | −0.0161 (14) |
Geometric parameters (Å, º) top
O1—C1 | 1.387 (3) | C11—C12 | 1.374 (3) |
O1—H1 | 0.92 (3) | C12—C13 | 1.384 (3) |
O11—C11 | 1.397 (3) | C12—H12 | 0.9300 |
O11—H11 | 0.87 (4) | C13—C14 | 1.393 (3) |
O22—C22 | 1.386 (3) | C13—H13 | 0.9300 |
O22—H22 | 0.89 (4) | C14—C15 | 1.393 (3) |
C1—C6 | 1.374 (4) | C14—C16 | 1.536 (3) |
C1—C2 | 1.376 (3) | C15—H15 | 0.9300 |
C2—C3 | 1.385 (3) | C16—C17 | 1.534 (4) |
C2—H2 | 0.9300 | C16—C19 | 1.540 (3) |
C3—C4 | 1.381 (3) | C16—C18 | 1.541 (4) |
C3—H3 | 0.9300 | C17—H17A | 0.99 (3) |
C4—C5 | 1.392 (3) | C17—H17B | 0.95 (3) |
C4—C7 | 1.537 (3) | C17—H17C | 0.94 (4) |
C5—C6 | 1.385 (3) | C18—H18A | 0.98 (4) |
C5—H5 | 0.9300 | C18—H18B | 1.01 (4) |
C6—H6 | 0.9300 | C18—H18C | 0.96 (4) |
C7—C8 | 1.532 (4) | C19—C24 | 1.377 (4) |
C7—C10 | 1.537 (3) | C19—C20 | 1.383 (3) |
C7—C9 | 1.545 (4) | C20—C21 | 1.379 (4) |
C8—H8A | 1.03 (3) | C20—H20 | 0.9300 |
C8—H8B | 0.96 (4) | C21—C22 | 1.370 (4) |
C8—H8C | 0.96 (3) | C21—H21 | 0.9300 |
C9—H9A | 1.00 (3) | C22—C23 | 1.377 (4) |
C9—H9B | 1.00 (3) | C23—C24 | 1.378 (4) |
C9—H9C | 1.03 (4) | C23—H23 | 0.9300 |
C10—C11 | 1.398 (3) | C24—H24 | 0.9300 |
C10—C15 | 1.399 (3) | | |
| | | |
C1—O1—H1 | 113.7 (17) | C13—C12—H12 | 119.6 |
C11—O11—H11 | 111 (3) | C12—C13—C14 | 120.5 (2) |
C22—O22—H22 | 106 (2) | C12—C13—H13 | 119.8 |
C6—C1—C2 | 119.9 (2) | C14—C13—H13 | 119.8 |
C6—C1—O1 | 122.8 (2) | C15—C14—C13 | 117.3 (2) |
C2—C1—O1 | 117.4 (2) | C15—C14—C16 | 122.8 (2) |
C1—C2—C3 | 120.2 (2) | C13—C14—C16 | 119.9 (2) |
C1—C2—H2 | 119.9 | C14—C15—C10 | 123.9 (2) |
C3—C2—H2 | 119.9 | C14—C15—H15 | 118.1 |
C4—C3—C2 | 121.6 (2) | C10—C15—H15 | 118.1 |
C4—C3—H3 | 119.2 | C17—C16—C14 | 107.8 (2) |
C2—C3—H3 | 119.2 | C17—C16—C19 | 111.0 (2) |
C3—C4—C5 | 116.8 (2) | C14—C16—C19 | 110.8 (2) |
C3—C4—C7 | 123.3 (2) | C17—C16—C18 | 108.1 (3) |
C5—C4—C7 | 119.8 (2) | C14—C16—C18 | 109.5 (2) |
C6—C5—C4 | 122.4 (2) | C19—C16—C18 | 109.6 (2) |
C6—C5—H5 | 118.8 | C16—C17—H17A | 115.1 (17) |
C4—C5—H5 | 118.8 | C16—C17—H17B | 113.5 (19) |
C1—C6—C5 | 119.2 (2) | H17A—C17—H17B | 106 (3) |
C1—C6—H6 | 120.4 | C16—C17—H17C | 106 (2) |
C5—C6—H6 | 120.4 | H17A—C17—H17C | 108 (3) |
C8—C7—C10 | 108.9 (2) | H17B—C17—H17C | 108 (3) |
C8—C7—C4 | 112.7 (2) | C16—C18—H18A | 112 (2) |
C10—C7—C4 | 109.96 (18) | C16—C18—H18B | 113 (2) |
C8—C7—C9 | 106.9 (2) | H18A—C18—H18B | 110 (3) |
C10—C7—C9 | 111.8 (2) | C16—C18—H18C | 114 (2) |
C4—C7—C9 | 106.7 (2) | H18A—C18—H18C | 106 (3) |
C7—C8—H8A | 109.5 (17) | H18B—C18—H18C | 102 (3) |
C7—C8—H8B | 111 (2) | C24—C19—C20 | 115.6 (2) |
H8A—C8—H8B | 110 (3) | C24—C19—C16 | 121.4 (2) |
C7—C8—H8C | 111.2 (17) | C20—C19—C16 | 122.9 (2) |
H8A—C8—H8C | 107 (2) | C21—C20—C19 | 122.9 (2) |
H8B—C8—H8C | 108 (3) | C21—C20—H20 | 118.6 |
C7—C9—H9A | 106.0 (18) | C19—C20—H20 | 118.6 |
C7—C9—H9B | 105.3 (18) | C22—C21—C20 | 119.8 (2) |
H9A—C9—H9B | 117 (3) | C22—C21—H21 | 120.1 |
C7—C9—H9C | 111 (2) | C20—C21—H21 | 120.1 |
H9A—C9—H9C | 108 (3) | C21—C22—C23 | 118.9 (2) |
H9B—C9—H9C | 109 (3) | C21—C22—O22 | 118.4 (2) |
C11—C10—C15 | 116.1 (2) | C23—C22—O22 | 122.6 (2) |
C11—C10—C7 | 121.9 (2) | C22—C23—C24 | 120.0 (2) |
C15—C10—C7 | 122.0 (2) | C22—C23—H23 | 120.0 |
C12—C11—O11 | 118.7 (2) | C24—C23—H23 | 120.0 |
C12—C11—C10 | 121.5 (2) | C19—C24—C23 | 122.8 (2) |
O11—C11—C10 | 119.7 (2) | C19—C24—H24 | 118.6 |
C11—C12—C13 | 120.7 (2) | C23—C24—H24 | 118.6 |
C11—C12—H12 | 119.6 | | |
| | | |
C6—C1—C2—C3 | 0.9 (3) | C12—C13—C14—C15 | 1.0 (3) |
O1—C1—C2—C3 | −178.7 (2) | C12—C13—C14—C16 | 178.6 (2) |
C1—C2—C3—C4 | 0.2 (3) | C13—C14—C15—C10 | −1.6 (3) |
C2—C3—C4—C5 | −1.2 (3) | C16—C14—C15—C10 | −179.1 (2) |
C2—C3—C4—C7 | 174.8 (2) | C11—C10—C15—C14 | 0.2 (3) |
C3—C4—C5—C6 | 1.2 (3) | C7—C10—C15—C14 | 179.8 (2) |
C7—C4—C5—C6 | −175.0 (2) | C15—C14—C16—C17 | 105.4 (3) |
C2—C1—C6—C5 | −0.9 (4) | C13—C14—C16—C17 | −72.0 (3) |
O1—C1—C6—C5 | 178.6 (2) | C15—C14—C16—C19 | −16.2 (3) |
C4—C5—C6—C1 | −0.1 (4) | C13—C14—C16—C19 | 166.3 (2) |
C3—C4—C7—C8 | 7.7 (3) | C15—C14—C16—C18 | −137.2 (3) |
C5—C4—C7—C8 | −176.4 (2) | C13—C14—C16—C18 | 45.4 (3) |
C3—C4—C7—C10 | 129.4 (2) | C17—C16—C19—C24 | 164.9 (3) |
C5—C4—C7—C10 | −54.8 (3) | C14—C16—C19—C24 | −75.4 (3) |
C3—C4—C7—C9 | −109.3 (3) | C18—C16—C19—C24 | 45.5 (4) |
C5—C4—C7—C9 | 66.6 (3) | C17—C16—C19—C20 | −18.2 (4) |
C8—C7—C10—C11 | 60.7 (3) | C14—C16—C19—C20 | 101.6 (3) |
C4—C7—C10—C11 | −63.2 (3) | C18—C16—C19—C20 | −137.5 (3) |
C9—C7—C10—C11 | 178.5 (2) | C24—C19—C20—C21 | 1.3 (4) |
C8—C7—C10—C15 | −118.9 (3) | C16—C19—C20—C21 | −175.9 (3) |
C4—C7—C10—C15 | 117.2 (2) | C19—C20—C21—C22 | 0.2 (5) |
C9—C7—C10—C15 | −1.1 (3) | C20—C21—C22—C23 | −1.6 (4) |
C15—C10—C11—C12 | 1.8 (3) | C20—C21—C22—O22 | 179.6 (3) |
C7—C10—C11—C12 | −177.8 (2) | C21—C22—C23—C24 | 1.5 (5) |
C15—C10—C11—O11 | 179.1 (2) | O22—C22—C23—C24 | −179.7 (3) |
C7—C10—C11—O11 | −0.5 (3) | C20—C19—C24—C23 | −1.3 (4) |
O11—C11—C12—C13 | −179.7 (2) | C16—C19—C24—C23 | 175.9 (3) |
C10—C11—C12—C13 | −2.3 (3) | C22—C23—C24—C19 | 0.0 (5) |
C11—C12—C13—C14 | 0.8 (4) | | |
Hydrogen-bond geometry (Å, º) top
D—H···A | D—H | H···A | D···A | D—H···A |
O1—H1···O11i | 0.92 (3) | 1.91 (3) | 2.813 (3) | 166 (3) |
O11—H11···O22ii | 0.87 (4) | 1.95 (4) | 2.813 (3) | 177 (4) |
O22—H22···O1iii | 0.89 (4) | 1.88 (4) | 2.756 (3) | 167 (3) |
C8—H8A···O11 | 1.03 (3) | 2.31 (3) | 2.987 (4) | 122 (2) |
C12—H12···Cg1iv | 0.93 | 2.74 | 3.564 (3) | 148 |
Symmetry codes: (i) x+1/2, y−1/2, z; (ii) x+1/2, −y+1/2, z+1/2; (iii) x, −y, z−1/2; (iv) x+1/2, y+1/2, z. |
Experimental details
Crystal data |
Chemical formula | C24H26O3 |
Mr | 362.45 |
Crystal system, space group | Monoclinic, Cc |
Temperature (K) | 290 |
a, b, c (Å) | 6.2143 (2), 15.3978 (5), 20.7130 (7) |
β (°) | 93.729 (3) |
V (Å3) | 1977.76 (11) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.08 |
Crystal size (mm) | 0.30 × 0.27 × 0.07 |
|
Data collection |
Diffractometer | Oxford Diffraction Xcalibur3 CCD diffractometer |
Absorption correction | – |
No. of measured, independent and observed [I > 2σ(I)] reflections | 7160, 2469, 1729 |
Rint | 0.027 |
(sin θ/λ)max (Å−1) | 0.671 |
|
Refinement |
R[F2 > 2σ(F2)], wR(F2), S | 0.033, 0.082, 1.08 |
No. of reflections | 2469 |
No. of parameters | 305 |
No. of restraints | 2 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.12, −0.11 |
Hydrogen-bond geometry (Å, º) top
D—H···A | D—H | H···A | D···A | D—H···A |
O1—H1···O11i | 0.92 (3) | 1.91 (3) | 2.813 (3) | 166 (3) |
O11—H11···O22ii | 0.87 (4) | 1.95 (4) | 2.813 (3) | 177 (4) |
O22—H22···O1iii | 0.89 (4) | 1.88 (4) | 2.756 (3) | 167 (3) |
C8—H8A···O11 | 1.03 (3) | 2.31 (3) | 2.987 (4) | 122 (2) |
C12—H12···Cg1iv | 0.93 | 2.74 | 3.564 (3) | 148 |
Symmetry codes: (i) x+1/2, y−1/2, z; (ii) x+1/2, −y+1/2, z+1/2; (iii) x, −y, z−1/2; (iv) x+1/2, y+1/2, z. |
The present investigation of the title compound, (I), is a continuation of our work on the structural study of compounds formed as by-products during the industrial production of 4,4'-isopropylidenediphenol, (II) (commonly referred to as bisphenol-A or p,p-BPA). In previous papers, the structures of two such by-products, i.e. 2,4'-isopropylidenediphenol, (III) [o,p-BPA; Cambridge Structural Database (CSD; Allen, 2002) refcode GALCAY (Rozycka-Sokolowska et al., 2005)], and 2,2'-isopropylidenediphenol, (IV) [o,o-BPA; CSD refcode UCOFIC (Rozycka-Sokolowska et al. 2006)], were reported. Now, the structure of a third by-product, (I), i.e. 2,4-bis[1-(4-hydroxyphenyl)-1-methylethyl]phenol (commonly referred to as BPX-1), is reported. We note that the 2,4-bis(α,α-dimethylbenzyl)phenol skeleton also occurs in WOBROU, (V) (Bryan, 2000), and VACKUF, (VI) (Kurashev et al., 1986)], while (I) may be treated as a (4-hydroxyphenyl)isopropyl derivative of p,p-BPA, (II) (CEGYOC02; Okada, 1996), or of o,p-BPA, (III), sharing structural features with these two isomers of BPA.
Compound (I) is constructed around a benzene ring (C10–C15), which has (4-hydroxyphenyl)isopropyl substituents at positions 2 and 4 and a hydroxy substituent at position 1 (Fig. 1). This ring and the two benzene rings belonging to the former substituents, i.e. the C1–C6 and C19–C24 rings, are planar, with largest deviations from planarity of -0.008 (2), 0.013 (2) and 0.011 (2) Å for atoms C4, C11 and C22, respectively. Similarly to the case of the three isomers of isopropylidenediphenol, each hydroxy O atom attached to the benzene ring is nearly coplanar with it. Namely, atom O22 lies only 0.017 (2) Å above the plane of the C19–C24 ring, whereas atoms O1 and O11 lie 0.037 (2) and 0.001 (2) Å below the planes formed by atoms C1–C6 and C10–C15, respectively. The dihedral angles between the least-squares plane defined by the C atoms of the central benzene ring (C10–C15) and the C1–C6 and C19–C24 planes are 87.2 (1) and 82.4 (1)°, respectively, while the latter two planes are inclined at 82.8 (1)° to one another. As can be seen in Fig. 1, there is one weak intramolecular C—H···O hydrogen bond, which links the methyl atom C8, via H8A, with the hydroxy atom O11 and generates an S(6) graph-set motif (Bernstein et al., 1995). The non-coplanar practically perpendicular orientation of the benzene rings belonging to the molecule of (I), and the presence of an intramolecular C—H···O hydrogen bond with such a graph-set descriptor, are in agreement with the structures observed for compounds (III)–(VI).
The crystal structure of (I) contains three strong, nearly linear O—H···O hydrogen bonds (Table 1), which connect each molecule to six others. These interactions result in the formation of a continuous three-dimensional framework, which can be analysed in terms of three independent one-dimensional substructures, each generated by one of the O—H···O hydrogen bonds.
In the first substructure, atom O1 in the molecule at (x, y, z) acts as a hydrogen-bond donor, via H1, to atom O11 belonging to the molecule at (x + 1/2, y - 1/2, z), so forming a C(10) chain running parallel to the [110] direction (Fig. 2). Two chains of this type pass through each unit cell, parallel to [110] and [110], where the component molecules are related by the c-glide plane at y = 1/2. In the second substructure, hydroxy atom O11 acts as a hydrogen bond donor, via H11, to atom O22 belonging to the molecule at (x + 1/2, -y + 1/2, z + 1/2), so forming a zigzag C(12) chain (Fig. 3), which runs parallel to the [101] direction and is built from molecules related by the c-glide plane at y = 1/4. The third substructure is generated by the O—H···O hydrogen bond that links hydroxy atom O22 at (x, y, z), via H22, with hydroxy atom O1 belonging to the molecule at (x, -y, z - 1/2), so generating a zigzag C(16) chain (Fig. 4). This chain runs along the [001] direction and comprises molecules related by the c-glide plane at y = 0. Two parallel C(12) and two parallel C(16) chains pass through each unit cell.
The combined effect of the C(10), C(12) and C(16) chains parallel to the [110] and [110], [101], and [001] directions, respectively, is sufficient to generate the continuous three-dimensional network. This network is additionally stabilized by a weak C—H···π interaction, which connects aromatic atom C12 at (x, y, z), via atom H12, with the centroid of the C1–C6 benzene ring (Cg1) of the molecule at (x + 1/2, y + 1/2, z) (Fig. 5).