The title compound, C
15H
17ClO, was synthesized directly from the condensation of cyclooctanone with 4-chlorobenzaldehyde, catalysed effectively by improved nanostructured Ni–B cluster in the presence of trimethylsilyl chloride (TMSCl). The eight-membered ring adopts a boat–chair conformation. The packing of the molecules in the crystal structure is determined mainly by C—H
O hydrogen bonds, together with C—H
π interactions and weak π–π stacking interactions.
Supporting information
CCDC reference: 251710
Key indicators
- Single-crystal X-ray study
- T = 288 K
- Mean (C-C) = 0.003 Å
- R factor = 0.036
- wR factor = 0.079
- Data-to-parameter ratio = 20.1
checkCIF/PLATON results
No syntax errors found
Alert level B
PLAT480_ALERT_4_B Long H...A H-Bond Reported H5A .. CG .. 3.27 Ang.
Alert level C
PLAT152_ALERT_1_C Supplied and Calc Volume s.u. Inconsistent ..... ?
PLAT230_ALERT_2_C Hirshfeld Test Diff for C5 - C6 .. 5.55 su
PLAT480_ALERT_4_C Long H...A H-Bond Reported H4B .. CG .. 2.87 Ang.
PLAT481_ALERT_4_C Long D...A H-Bond Reported C5 .. CG .. 4.07 Ang.
Alert level G
REFLT03_ALERT_4_G Please check that the estimate of the number of Friedel pairs is
correct. If it is not, please give the correct count in the
_publ_section_exptl_refinement section of the submitted CIF.
From the CIF: _diffrn_reflns_theta_max 27.70
From the CIF: _reflns_number_total 3115
Count of symmetry unique reflns 1642
Completeness (_total/calc) 189.71%
TEST3: Check Friedels for noncentro structure
Estimate of Friedel pairs measured 1473
Fraction of Friedel pairs measured 0.897
Are heavy atom types Z>Si present yes
0 ALERT level A = In general: serious problem
1 ALERT level B = Potentially serious problem
4 ALERT level C = Check and explain
1 ALERT level G = General alerts; check
1 ALERT type 1 CIF construction/syntax error, inconsistent or missing data
1 ALERT type 2 Indicator that the structure model may be wrong or deficient
0 ALERT type 3 Indicator that the structure quality may be low
4 ALERT type 4 Improvement, methodology, query or suggestion
Data collection: XSCANS (Siemens, 1994); cell refinement: XSCANS; data reduction: SHELXTL (Siemens, 1991); program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: SHELXTL; software used to prepare material for publication: SHELXTL.
(
E)-2-(4-Chlorobenzylidene)cyclooctanone
top
Crystal data top
C15H17ClO | F(000) = 264 |
Mr = 248.74 | Dx = 1.243 Mg m−3 |
Monoclinic, P21 | Melting point = 362–364 K |
Hall symbol: P 2yb | Mo Kα radiation, λ = 0.71073 Å |
a = 7.474 (1) Å | Cell parameters from 34 reflections |
b = 10.545 (1) Å | θ = 2.8–15.2° |
c = 8.568 (1) Å | µ = 0.27 mm−1 |
β = 100.223 (9)° | T = 288 K |
V = 664.6 (1) Å3 | Block, colorless |
Z = 2 | 0.48 × 0.40 × 0.38 mm |
Data collection top
Siemens P4 diffractometer | 2310 reflections with I > 2σ(I) |
Radiation source: normal-focus sealed tube | Rint = 0.016 |
Graphite monochromator | θmax = 27.7°, θmin = 2.4° |
ω scans | h = −9→9 |
Absorption correction: multi-scan (SHELXTL; Siemens, 1991) | k = −13→13 |
Tmin = 0.858, Tmax = 0.898 | l = −11→11 |
3675 measured reflections | 3 standard reflections every 97 reflections |
3115 independent reflections | intensity decay: 3.5% |
Refinement top
Refinement on F2 | Hydrogen site location: inferred from neighbouring sites |
Least-squares matrix: full | H-atom parameters constrained |
R[F2 > 2σ(F2)] = 0.036 | w = 1/[σ2(Fo2) + (0.0378P)2] where P = (Fo2 + 2Fc2)/3 |
wR(F2) = 0.079 | (Δ/σ)max < 0.001 |
S = 0.96 | Δρmax = 0.14 e Å−3 |
3115 reflections | Δρmin = −0.11 e Å−3 |
155 parameters | Extinction correction: SHELXL, Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4 |
1 restraint | Extinction coefficient: 0.056 (4) |
Primary atom site location: structure-invariant direct methods | Absolute structure: 1473 Friedel pairs (Flack, 1983) |
Secondary atom site location: difference Fourier map | Absolute structure parameter: −0.01 (6) |
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 | |
Cl | 0.31690 (7) | 0.65545 (6) | 1.17777 (6) | 0.06703 (19) | |
O | 1.14291 (19) | 0.38191 (16) | 0.66331 (17) | 0.0743 (5) | |
C1 | 1.0234 (3) | 0.4371 (2) | 0.5745 (2) | 0.0502 (5) | |
C2 | 1.0529 (3) | 0.4676 (2) | 0.4086 (2) | 0.0567 (5) | |
H2A | 0.9735 | 0.5370 | 0.3669 | 0.068* | |
H2B | 1.1774 | 0.4956 | 0.4133 | 0.068* | |
C3 | 1.0170 (3) | 0.3563 (3) | 0.2968 (3) | 0.0674 (6) | |
H3A | 1.0842 | 0.2839 | 0.3466 | 0.081* | |
H3B | 1.0654 | 0.3762 | 0.2018 | 0.081* | |
C4 | 0.8190 (3) | 0.3175 (2) | 0.2473 (3) | 0.0703 (7) | |
H4A | 0.8127 | 0.2499 | 0.1697 | 0.084* | |
H4B | 0.7520 | 0.3891 | 0.1953 | 0.084* | |
C5 | 0.7242 (3) | 0.2727 (2) | 0.3813 (3) | 0.0724 (7) | |
H5A | 0.6553 | 0.1968 | 0.3462 | 0.087* | |
H5B | 0.8167 | 0.2492 | 0.4709 | 0.087* | |
C6 | 0.5963 (3) | 0.3678 (3) | 0.4385 (2) | 0.0655 (6) | |
H6A | 0.5410 | 0.3274 | 0.5199 | 0.079* | |
H6B | 0.4996 | 0.3874 | 0.3505 | 0.079* | |
C7 | 0.6829 (3) | 0.4929 (2) | 0.5055 (2) | 0.0536 (5) | |
H7A | 0.7123 | 0.5432 | 0.4187 | 0.064* | |
H7B | 0.5943 | 0.5400 | 0.5525 | 0.064* | |
C8 | 0.8519 (2) | 0.47659 (18) | 0.6278 (2) | 0.0426 (4) | |
C9 | 0.8657 (2) | 0.50057 (19) | 0.7830 (2) | 0.0472 (5) | |
H9 | 0.9815 | 0.4899 | 0.8425 | 0.057* | |
C10 | 0.7261 (2) | 0.54116 (17) | 0.87409 (19) | 0.0416 (4) | |
C11 | 0.5519 (2) | 0.4895 (2) | 0.8489 (2) | 0.0465 (4) | |
H11 | 0.5190 | 0.4308 | 0.7679 | 0.056* | |
C12 | 0.4270 (3) | 0.52420 (19) | 0.9427 (2) | 0.0486 (5) | |
H12 | 0.3115 | 0.4883 | 0.9262 | 0.058* | |
C13 | 0.4759 (3) | 0.61224 (18) | 1.0603 (2) | 0.0455 (5) | |
C14 | 0.6459 (3) | 0.6660 (2) | 1.0892 (2) | 0.0500 (4) | |
H14 | 0.6767 | 0.7259 | 1.1692 | 0.060* | |
C15 | 0.7705 (2) | 0.62858 (18) | 0.9957 (2) | 0.0483 (5) | |
H15 | 0.8869 | 0.6631 | 1.0152 | 0.058* | |
Atomic displacement parameters (Å2) top | U11 | U22 | U33 | U12 | U13 | U23 |
Cl | 0.0666 (3) | 0.0807 (4) | 0.0601 (3) | 0.0020 (3) | 0.0284 (2) | −0.0054 (3) |
O | 0.0540 (8) | 0.1060 (14) | 0.0584 (9) | 0.0241 (9) | −0.0023 (7) | −0.0089 (9) |
C1 | 0.0475 (11) | 0.0552 (12) | 0.0460 (10) | −0.0015 (10) | 0.0030 (9) | −0.0089 (9) |
C2 | 0.0540 (11) | 0.0627 (14) | 0.0575 (12) | −0.0080 (10) | 0.0213 (9) | −0.0051 (11) |
C3 | 0.0759 (15) | 0.0748 (15) | 0.0552 (13) | 0.0030 (13) | 0.0217 (11) | −0.0133 (12) |
C4 | 0.0839 (16) | 0.0735 (16) | 0.0529 (12) | −0.0070 (13) | 0.0109 (11) | −0.0173 (12) |
C5 | 0.0849 (17) | 0.0661 (15) | 0.0643 (13) | −0.0249 (14) | 0.0083 (12) | −0.0109 (12) |
C6 | 0.0503 (11) | 0.0957 (18) | 0.0480 (11) | −0.0117 (12) | 0.0016 (9) | −0.0041 (12) |
C7 | 0.0493 (11) | 0.0683 (14) | 0.0427 (10) | 0.0102 (11) | 0.0065 (9) | 0.0089 (10) |
C8 | 0.0413 (9) | 0.0433 (11) | 0.0427 (10) | −0.0009 (9) | 0.0055 (8) | 0.0023 (8) |
C9 | 0.0386 (9) | 0.0555 (12) | 0.0451 (10) | 0.0001 (9) | 0.0014 (8) | −0.0006 (9) |
C10 | 0.0423 (10) | 0.0454 (11) | 0.0355 (9) | 0.0001 (9) | 0.0027 (8) | 0.0035 (8) |
C11 | 0.0464 (10) | 0.0513 (11) | 0.0399 (9) | −0.0032 (9) | 0.0027 (8) | −0.0057 (9) |
C12 | 0.0437 (10) | 0.0529 (12) | 0.0479 (10) | −0.0037 (9) | 0.0051 (8) | −0.0007 (10) |
C13 | 0.0479 (10) | 0.0505 (12) | 0.0390 (9) | 0.0063 (9) | 0.0105 (8) | 0.0064 (8) |
C14 | 0.0591 (11) | 0.0477 (11) | 0.0420 (9) | −0.0035 (11) | 0.0061 (8) | −0.0047 (10) |
C15 | 0.0429 (10) | 0.0563 (14) | 0.0445 (9) | −0.0101 (9) | 0.0041 (8) | 0.0007 (9) |
Geometric parameters (Å, º) top
Cl—C13 | 1.7489 (18) | C6—H6B | 0.9700 |
O—C1 | 1.214 (2) | C7—C8 | 1.501 (2) |
C1—C8 | 1.494 (3) | C7—H7A | 0.9700 |
C1—C2 | 1.512 (3) | C7—H7B | 0.9700 |
C2—C3 | 1.508 (3) | C8—C9 | 1.339 (2) |
C2—H2A | 0.9700 | C9—C10 | 1.474 (2) |
C2—H2B | 0.9700 | C9—H9 | 0.9300 |
C3—C4 | 1.522 (3) | C10—C15 | 1.387 (2) |
C3—H3A | 0.9700 | C10—C11 | 1.392 (3) |
C3—H3B | 0.9700 | C11—C12 | 1.385 (3) |
C4—C5 | 1.527 (3) | C11—H11 | 0.9300 |
C4—H4A | 0.9700 | C12—C13 | 1.371 (3) |
C4—H4B | 0.9700 | C12—H12 | 0.9300 |
C5—C6 | 1.525 (3) | C13—C14 | 1.373 (3) |
C5—H5A | 0.9700 | C14—C15 | 1.389 (2) |
C5—H5B | 0.9700 | C14—H14 | 0.9300 |
C6—C7 | 1.536 (3) | C15—H15 | 0.9300 |
C6—H6A | 0.9700 | | |
| | | |
O—C1—C8 | 121.19 (18) | H6A—C6—H6B | 107.4 |
O—C1—C2 | 118.48 (18) | C8—C7—C6 | 114.15 (18) |
C8—C1—C2 | 120.32 (17) | C8—C7—H7A | 108.7 |
C3—C2—C1 | 113.11 (18) | C6—C7—H7A | 108.7 |
C3—C2—H2A | 109.0 | C8—C7—H7B | 108.7 |
C1—C2—H2A | 109.0 | C6—C7—H7B | 108.7 |
C3—C2—H2B | 109.0 | H7A—C7—H7B | 107.6 |
C1—C2—H2B | 109.0 | C9—C8—C1 | 115.92 (15) |
H2A—C2—H2B | 107.8 | C9—C8—C7 | 125.33 (17) |
C2—C3—C4 | 116.18 (18) | C1—C8—C7 | 118.67 (16) |
C2—C3—H3A | 108.2 | C8—C9—C10 | 130.09 (16) |
C4—C3—H3A | 108.2 | C8—C9—H9 | 115.0 |
C2—C3—H3B | 108.2 | C10—C9—H9 | 115.0 |
C4—C3—H3B | 108.2 | C15—C10—C11 | 118.01 (16) |
H3A—C3—H3B | 107.4 | C15—C10—C9 | 119.56 (16) |
C3—C4—C5 | 115.57 (18) | C11—C10—C9 | 122.33 (17) |
C3—C4—H4A | 108.4 | C12—C11—C10 | 120.97 (18) |
C5—C4—H4A | 108.4 | C12—C11—H11 | 119.5 |
C3—C4—H4B | 108.4 | C10—C11—H11 | 119.5 |
C5—C4—H4B | 108.4 | C13—C12—C11 | 119.06 (18) |
H4A—C4—H4B | 107.4 | C13—C12—H12 | 120.5 |
C6—C5—C4 | 116.1 (2) | C11—C12—H12 | 120.5 |
C6—C5—H5A | 108.3 | C12—C13—C14 | 122.02 (18) |
C4—C5—H5A | 108.3 | C12—C13—Cl | 118.64 (16) |
C6—C5—H5B | 108.3 | C14—C13—Cl | 119.34 (15) |
C4—C5—H5B | 108.3 | C13—C14—C15 | 118.17 (18) |
H5A—C5—H5B | 107.4 | C13—C14—H14 | 120.9 |
C5—C6—C7 | 116.01 (16) | C15—C14—H14 | 120.9 |
C5—C6—H6A | 108.3 | C10—C15—C14 | 121.75 (17) |
C7—C6—H6A | 108.3 | C10—C15—H15 | 119.1 |
C5—C6—H6B | 108.3 | C14—C15—H15 | 119.1 |
C7—C6—H6B | 108.3 | | |
| | | |
O—C1—C2—C3 | 80.4 (2) | C7—C8—C9—C10 | 3.2 (3) |
C8—C1—C2—C3 | −100.7 (2) | C8—C9—C10—C15 | −141.3 (2) |
C1—C2—C3—C4 | 71.2 (3) | C8—C9—C10—C11 | 42.4 (3) |
C2—C3—C4—C5 | −62.5 (3) | C15—C10—C11—C12 | −0.1 (3) |
C3—C4—C5—C6 | 102.7 (3) | C9—C10—C11—C12 | 176.17 (17) |
C4—C5—C6—C7 | −60.5 (3) | C10—C11—C12—C13 | 1.0 (3) |
C5—C6—C7—C8 | −49.9 (3) | C11—C12—C13—C14 | −0.8 (3) |
O—C1—C8—C9 | 28.5 (3) | C11—C12—C13—Cl | 179.92 (15) |
C2—C1—C8—C9 | −150.33 (18) | C12—C13—C14—C15 | −0.2 (3) |
O—C1—C8—C7 | −154.6 (2) | Cl—C13—C14—C15 | 179.03 (14) |
C2—C1—C8—C7 | 26.5 (3) | C11—C10—C15—C14 | −1.0 (3) |
C6—C7—C8—C9 | −109.6 (2) | C9—C10—C15—C14 | −177.36 (18) |
C6—C7—C8—C1 | 73.9 (2) | C13—C14—C15—C10 | 1.1 (3) |
C1—C8—C9—C10 | 179.84 (19) | | |
Hydrogen-bond geometry (Å, º) top
D—H···A | D—H | H···A | D···A | D—H···A |
C14—H14···Oi | 0.93 | 2.43 | 3.314 (3) | 159 |
C4—H4B···Cgii | 0.97 | 2.87 | 3.806 (8) | 164 |
C5—H5A···Cgiii | 0.97 | 3.27 | 4.065 (1) | 141 |
Symmetry codes: (i) −x+2, y+1/2, −z+2; (ii) x, y, z−1; (iii) −x+1, y−1/2, −z+1. |