Supporting information
Crystallographic Information File (CIF) https://doi.org/10.1107/S1600536807015280/cv2214sup1.cif | |
Structure factor file (CIF format) https://doi.org/10.1107/S1600536807015280/cv2214Isup2.hkl |
CCDC reference: 613378
Key indicators
- Single-crystal X-ray study
- T = 299 K
- Mean (C-C) = 0.011 Å
- R factor = 0.055
- wR factor = 0.152
- Data-to-parameter ratio = 8.6
checkCIF/PLATON results
No syntax errors found
Alert level B PLAT340_ALERT_3_B Low Bond Precision on C-C bonds (x 1000) Ang ... 11
Alert level C PLAT062_ALERT_4_C Rescale T(min) & T(max) by ..................... 0.84
Alert level G ABSTM02_ALERT_3_G When printed, the submitted absorption T values will be replaced by the scaled T values. Since the ratio of scaled T's is identical to the ratio of reported T values, the scaling does not imply a change to the absorption corrections used in the study. Ratio of Tmax expected/reported 0.838 Tmax scaled 0.835 Tmin scaled 0.792 REFLT03_ALERT_4_G WARNING: Large fraction of Friedel related reflns may be needed to determine absolute structure From the CIF: _diffrn_reflns_theta_max 66.87 From the CIF: _reflns_number_total 943 Count of symmetry unique reflns 943 Completeness (_total/calc) 100.00% TEST3: Check Friedels for noncentro structure Estimate of Friedel pairs measured 0 Fraction of Friedel pairs measured 0.000 Are heavy atom types Z>Si present yes
0 ALERT level A = In general: serious problem 1 ALERT level B = Potentially serious problem 1 ALERT level C = Check and explain 2 ALERT level G = General alerts; check 0 ALERT type 1 CIF construction/syntax error, inconsistent or missing data 0 ALERT type 2 Indicator that the structure model may be wrong or deficient 2 ALERT type 3 Indicator that the structure quality may be low 2 ALERT type 4 Improvement, methodology, query or suggestion 0 ALERT type 5 Informative message, check
Data collection: CAD-4-PC (Nonius, 1996); data reduction: REDU4 (Stoe & Cie, 1987); program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: PLATON (Spek, 2003) and ORTEP-3 (Farrugia, 1997); software used to prepare material for publication: SHELXL97.
C8H7Cl2NO | F(000) = 416 |
Mr = 204.05 | Dx = 1.485 Mg m−3 |
Orthorhombic, Pna21 | Cu Kα radiation, λ = 1.54180 Å |
Hall symbol: P 2c -2n | Cell parameters from 25 reflections |
a = 9.567 (1) Å | θ = 5.9–25.7° |
b = 24.116 (5) Å | µ = 6.00 mm−1 |
c = 3.9552 (6) Å | T = 299 K |
V = 912.5 (3) Å3 | Needle, colourless |
Z = 4 | 0.57 × 0.04 × 0.03 mm |
Enraf–Nonius CAD-4 diffractometer | 541 reflections with I > 2σ(I) |
Radiation source: fine-focus sealed tube | Rint = 0.071 |
Graphite monochromator | θmax = 66.9°, θmin = 3.7° |
ω scans | h = 0→11 |
Absorption correction: ψ scan (North et al., 1968) | k = −28→1 |
Tmin = 0.945, Tmax = 0.996 | l = 0→4 |
959 measured reflections | 3 standard reflections every 120 min |
943 independent reflections | intensity decay: 2.2% |
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)] = 0.055 | H-atom parameters constrained |
wR(F2) = 0.152 | w = 1/[σ2(Fo2) + (0.0804P)2] where P = (Fo2 + 2Fc2)/3 |
S = 1.04 | (Δ/σ)max = 0.010 |
943 reflections | Δρmax = 0.33 e Å−3 |
110 parameters | Δρmin = −0.33 e Å−3 |
1 restraint | Absolute structure: Flack (1983) |
Primary atom site location: structure-invariant direct methods | Absolute structure parameter: 0.03 (7) |
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 | ||
Cl11 | 0.3297 (2) | 0.07002 (8) | 0.7981 (8) | 0.0836 (8) | |
Cl12 | 0.8872 (2) | 0.04676 (9) | 0.7590 (10) | 0.0963 (9) | |
O3 | 0.4344 (5) | 0.24977 (19) | 0.216 (2) | 0.086 (2) | |
N4 | 0.6539 (5) | 0.2174 (2) | 0.276 (2) | 0.0536 (15) | |
H4N | 0.7388 | 0.2278 | 0.3019 | 0.064* | |
C1 | 0.6196 (9) | 0.3074 (3) | 0.032 (3) | 0.074 (2) | |
H1A | 0.6259 | 0.3354 | 0.2039 | 0.111* | |
H1B | 0.5600 | 0.3201 | −0.1467 | 0.111* | |
H1C | 0.7111 | 0.2999 | −0.0562 | 0.111* | |
C2 | 0.5605 (8) | 0.2558 (3) | 0.181 (2) | 0.058 (2) | |
C5 | 0.6322 (7) | 0.1665 (3) | 0.439 (2) | 0.0501 (19) | |
C6 | 0.5024 (8) | 0.1458 (3) | 0.524 (2) | 0.056 (2) | |
H6 | 0.4220 | 0.1659 | 0.4745 | 0.067* | |
C7 | 0.4927 (8) | 0.0950 (3) | 0.684 (3) | 0.059 (2) | |
C8 | 0.6095 (9) | 0.0636 (3) | 0.755 (3) | 0.069 (2) | |
H8 | 0.6014 | 0.0294 | 0.8621 | 0.083* | |
C9 | 0.7395 (8) | 0.0842 (3) | 0.662 (3) | 0.060 (2) | |
C10 | 0.7511 (8) | 0.1346 (3) | 0.510 (2) | 0.0551 (19) | |
H10 | 0.8390 | 0.1481 | 0.4516 | 0.066* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Cl11 | 0.0900 (14) | 0.0712 (11) | 0.0896 (17) | −0.0146 (11) | 0.023 (2) | 0.0003 (17) |
Cl12 | 0.0982 (15) | 0.0976 (16) | 0.093 (2) | 0.0405 (12) | −0.014 (2) | 0.0066 (19) |
O3 | 0.049 (3) | 0.075 (3) | 0.134 (8) | 0.008 (2) | 0.000 (5) | 0.011 (6) |
N4 | 0.044 (3) | 0.052 (3) | 0.065 (4) | −0.001 (2) | −0.002 (5) | −0.007 (5) |
C1 | 0.081 (5) | 0.070 (5) | 0.070 (6) | 0.001 (4) | −0.004 (6) | 0.011 (5) |
C2 | 0.049 (4) | 0.059 (4) | 0.065 (6) | 0.007 (4) | −0.005 (5) | −0.006 (5) |
C5 | 0.047 (4) | 0.055 (4) | 0.048 (4) | −0.004 (3) | −0.006 (4) | −0.007 (4) |
C6 | 0.056 (4) | 0.056 (4) | 0.056 (5) | 0.004 (3) | −0.002 (4) | −0.003 (4) |
C7 | 0.078 (5) | 0.050 (4) | 0.049 (5) | −0.003 (4) | 0.006 (5) | −0.005 (4) |
C8 | 0.108 (6) | 0.047 (4) | 0.053 (6) | 0.009 (4) | 0.006 (7) | −0.004 (5) |
C9 | 0.072 (5) | 0.057 (5) | 0.052 (5) | 0.007 (4) | −0.007 (5) | −0.002 (4) |
C10 | 0.054 (4) | 0.060 (4) | 0.051 (5) | −0.001 (4) | −0.003 (4) | −0.013 (4) |
Cl11—C7 | 1.731 (8) | C5—C6 | 1.380 (10) |
Cl12—C9 | 1.720 (8) | C5—C10 | 1.400 (10) |
O3—C2 | 1.223 (8) | C6—C7 | 1.381 (10) |
N4—C2 | 1.340 (9) | C6—H6 | 0.9300 |
N4—C5 | 1.402 (9) | C7—C8 | 1.380 (10) |
N4—H4N | 0.8571 | C8—C9 | 1.389 (11) |
C1—C2 | 1.488 (10) | C8—H8 | 0.9300 |
C1—H1A | 0.9600 | C9—C10 | 1.362 (10) |
C1—H1B | 0.9600 | C10—H10 | 0.9300 |
C1—H1C | 0.9600 | ||
C2—N4—C5 | 129.4 (6) | C5—C6—C7 | 119.5 (7) |
C2—N4—H4N | 117.6 | C5—C6—H6 | 120.3 |
C5—N4—H4N | 110.1 | C7—C6—H6 | 120.3 |
C2—C1—H1A | 109.5 | C8—C7—C6 | 121.7 (8) |
C2—C1—H1B | 109.5 | C8—C7—Cl11 | 119.0 (6) |
H1A—C1—H1B | 109.5 | C6—C7—Cl11 | 119.2 (6) |
C2—C1—H1C | 109.5 | C7—C8—C9 | 118.4 (8) |
H1A—C1—H1C | 109.5 | C7—C8—H8 | 120.8 |
H1B—C1—H1C | 109.5 | C9—C8—H8 | 120.8 |
O3—C2—N4 | 123.0 (7) | C10—C9—C8 | 120.6 (8) |
O3—C2—C1 | 121.2 (7) | C10—C9—Cl12 | 120.1 (7) |
N4—C2—C1 | 115.8 (7) | C8—C9—Cl12 | 119.3 (6) |
C6—C5—C10 | 119.0 (7) | C9—C10—C5 | 120.8 (8) |
C6—C5—N4 | 124.2 (6) | C9—C10—H10 | 119.6 |
C10—C5—N4 | 116.9 (6) | C5—C10—H10 | 119.6 |
C5—N4—C2—O3 | −3.0 (16) | C6—C7—C8—C9 | 0.2 (15) |
C5—N4—C2—C1 | 176.2 (9) | Cl11—C7—C8—C9 | −180.0 (9) |
C2—N4—C5—C6 | 2.0 (14) | C7—C8—C9—C10 | 0.9 (15) |
C2—N4—C5—C10 | −179.7 (9) | C7—C8—C9—Cl12 | 178.1 (8) |
C10—C5—C6—C7 | 1.6 (12) | C8—C9—C10—C5 | −0.8 (14) |
N4—C5—C6—C7 | 179.9 (8) | Cl12—C9—C10—C5 | −177.9 (7) |
C5—C6—C7—C8 | −1.5 (13) | C6—C5—C10—C9 | −0.5 (12) |
C5—C6—C7—Cl11 | 178.7 (7) | N4—C5—C10—C9 | −178.9 (8) |
D—H···A | D—H | H···A | D···A | D—H···A |
N4—H4N···O3i | 0.86 | 1.98 | 2.808 (7) | 163 |
Symmetry code: (i) x+1/2, −y+1/2, z. |
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