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In the title crystal structure, C
18H
20N
2O
3, molecules are linked into centrosymmetric dimers
via O—H
O hydrogen bonds [H
O = 1.92 (3) Å]. These dimers are, in turn, linked by weak C—H
O hydrogen bonds [H
O = 2.42 Å], forming a two-dimensional network.
Supporting information
CCDC reference: 604991
Key indicators
- Single-crystal X-ray study
- T = 150 K
- Mean (C-C) = 0.003 Å
- R factor = 0.054
- wR factor = 0.161
- Data-to-parameter ratio = 12.4
checkCIF/PLATON results
No syntax errors found
Alert level C
RINTA01_ALERT_3_C The value of Rint is greater than 0.10
Rint given 0.104
PLAT020_ALERT_3_C The value of Rint is greater than 0.10 ......... 0.10
0 ALERT level A = In general: serious problem
0 ALERT level B = Potentially serious problem
2 ALERT level C = Check and explain
0 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
0 ALERT type 4 Improvement, methodology, query or suggestion
Data collection: Collect (Nonius, 1997-2002); cell refinement: DENZO-SMN (Otwinowski & Minor, 1997); data reduction: DENZO-SMN; program(s) used to solve structure: SIR92 (Altomare et al., 1994); program(s) used to refine structure: SHELXTL (Sheldrick, 2001); molecular graphics: PLATON (Spek, 2003); software used to prepare material for publication: SHELXTL.
Crystal data top
C18H20N2O3 | F(000) = 664 |
Mr = 312.36 | Dx = 1.370 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 9870 reflections |
a = 13.6894 (4) Å | θ = 2.8–25.0° |
b = 11.2312 (8) Å | µ = 0.09 mm−1 |
c = 10.2511 (9) Å | T = 150 K |
β = 106.086 (4)° | Needle, orange |
V = 1514.38 (18) Å3 | 0.25 × 0.20 × 0.16 mm |
Z = 4 | |
Data collection top
Bruker-Nonius KappaCCD diffractometer | 1688 reflections with I > 2σ(I) |
Radiation source: fine-focus sealed tube | Rint = 0.104 |
Graphite monochromator | θmax = 25.0°, θmin = 2.8° |
Detector resolution: 9 pixels mm-1 | h = −16→16 |
φ scans and ω scans with κ offsets | k = −13→13 |
9870 measured reflections | l = −12→11 |
2660 independent reflections | |
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)] = 0.054 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.161 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.03 | w = 1/[σ2(Fo2) + (0.0822P)2 + 0.0395P] where P = (Fo2 + 2Fc2)/3 |
2660 reflections | (Δ/σ)max = 0.002 |
215 parameters | Δρmax = 0.23 e Å−3 |
0 restraints | Δρmin = −0.36 e Å−3 |
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 | 0.22279 (13) | 0.45475 (16) | 0.53599 (16) | 0.0370 (5) | |
O2 | 0.19004 (13) | 0.68847 (16) | 0.88498 (17) | 0.0368 (5) | |
O3 | 0.76076 (15) | 0.71153 (18) | 0.66244 (18) | 0.0407 (5) | |
N1 | 0.20533 (15) | 0.57393 (18) | 0.70837 (19) | 0.0277 (5) | |
N2 | 0.69569 (16) | 0.53328 (18) | 0.83712 (19) | 0.0300 (5) | |
C1 | 0.26501 (19) | 0.5120 (2) | 0.6392 (2) | 0.0276 (6) | |
C2 | 0.37495 (18) | 0.5188 (2) | 0.6932 (2) | 0.0241 (6) | |
C3 | 0.43682 (19) | 0.4551 (2) | 0.6329 (2) | 0.0272 (6) | |
H3B | 0.4066 | 0.4072 | 0.5558 | 0.033* | |
C4 | 0.5420 (2) | 0.4589 (2) | 0.6818 (2) | 0.0282 (6) | |
H4A | 0.5819 | 0.4122 | 0.6387 | 0.034* | |
C5 | 0.59059 (18) | 0.5296 (2) | 0.7926 (2) | 0.0251 (6) | |
C6 | 0.52793 (19) | 0.5914 (2) | 0.8642 (2) | 0.0241 (6) | |
C7 | 0.56732 (18) | 0.6485 (2) | 0.9909 (2) | 0.0253 (6) | |
H7A | 0.6385 | 0.6469 | 1.0326 | 0.030* | |
C8 | 0.50533 (19) | 0.7061 (2) | 1.0552 (2) | 0.0269 (6) | |
H8A | 0.5341 | 0.7459 | 1.1388 | 0.032* | |
C9 | 0.40037 (19) | 0.7062 (2) | 0.9982 (2) | 0.0254 (6) | |
H9A | 0.3580 | 0.7485 | 1.0416 | 0.030* | |
C10 | 0.35774 (18) | 0.6453 (2) | 0.8792 (2) | 0.0241 (6) | |
C11 | 0.24646 (19) | 0.6396 (2) | 0.8272 (2) | 0.0276 (6) | |
C12 | 0.42023 (18) | 0.5866 (2) | 0.8103 (2) | 0.0240 (6) | |
C13 | 0.09246 (19) | 0.5648 (2) | 0.6543 (3) | 0.0334 (7) | |
H13A | 0.0794 | 0.5165 | 0.5693 | 0.040* | |
C14 | 0.0424 (2) | 0.6849 (3) | 0.6123 (3) | 0.0434 (7) | |
H14A | 0.0744 | 0.7238 | 0.5491 | 0.065* | |
H14B | 0.0506 | 0.7351 | 0.6928 | 0.065* | |
H14C | −0.0302 | 0.6733 | 0.5678 | 0.065* | |
C15 | 0.0473 (2) | 0.4947 (3) | 0.7503 (3) | 0.0420 (7) | |
H15A | 0.0856 | 0.4206 | 0.7763 | 0.063* | |
H15B | −0.0239 | 0.4759 | 0.7049 | 0.063* | |
H15C | 0.0512 | 0.5422 | 0.8317 | 0.063* | |
C16 | 0.7539 (2) | 0.4374 (2) | 0.7983 (3) | 0.0365 (7) | |
H16A | 0.7199 | 0.3612 | 0.8017 | 0.055* | |
H16B | 0.8224 | 0.4354 | 0.8612 | 0.055* | |
H16C | 0.7586 | 0.4513 | 0.7058 | 0.055* | |
C17 | 0.75225 (18) | 0.6433 (2) | 0.8830 (2) | 0.0296 (6) | |
H17A | 0.7956 | 0.6315 | 0.9770 | 0.035* | |
H17B | 0.7032 | 0.7075 | 0.8852 | 0.035* | |
C18 | 0.81877 (19) | 0.6831 (2) | 0.7953 (2) | 0.0317 (6) | |
H18A | 0.8586 | 0.7537 | 0.8370 | 0.038* | |
H18B | 0.8673 | 0.6187 | 0.7913 | 0.038* | |
H3O | 0.758 (2) | 0.650 (3) | 0.602 (3) | 0.061 (10)* | |
Atomic displacement parameters (Å2) top | U11 | U22 | U33 | U12 | U13 | U23 |
O1 | 0.0422 (11) | 0.0353 (12) | 0.0308 (10) | −0.0039 (9) | 0.0055 (8) | −0.0112 (8) |
O2 | 0.0372 (11) | 0.0387 (12) | 0.0358 (10) | 0.0054 (9) | 0.0121 (8) | −0.0062 (8) |
O3 | 0.0560 (13) | 0.0358 (13) | 0.0304 (11) | 0.0095 (10) | 0.0120 (9) | 0.0062 (9) |
N1 | 0.0298 (12) | 0.0230 (12) | 0.0295 (11) | 0.0002 (9) | 0.0068 (9) | −0.0026 (9) |
N2 | 0.0381 (14) | 0.0187 (12) | 0.0360 (12) | 0.0002 (9) | 0.0146 (10) | −0.0031 (9) |
C1 | 0.0410 (16) | 0.0177 (14) | 0.0251 (13) | −0.0011 (12) | 0.0106 (11) | 0.0014 (10) |
C2 | 0.0384 (16) | 0.0141 (13) | 0.0207 (11) | 0.0006 (11) | 0.0098 (10) | 0.0020 (10) |
C3 | 0.0412 (16) | 0.0180 (14) | 0.0229 (12) | −0.0015 (11) | 0.0097 (11) | 0.0005 (10) |
C4 | 0.0421 (17) | 0.0178 (14) | 0.0290 (13) | 0.0012 (11) | 0.0172 (11) | −0.0010 (10) |
C5 | 0.0325 (15) | 0.0158 (13) | 0.0283 (13) | 0.0009 (11) | 0.0107 (11) | 0.0037 (10) |
C6 | 0.0361 (15) | 0.0120 (13) | 0.0261 (12) | 0.0001 (10) | 0.0118 (10) | 0.0049 (10) |
C7 | 0.0311 (14) | 0.0184 (14) | 0.0268 (13) | −0.0034 (11) | 0.0087 (10) | 0.0025 (10) |
C8 | 0.0415 (16) | 0.0164 (14) | 0.0231 (12) | −0.0036 (11) | 0.0095 (11) | 0.0008 (10) |
C9 | 0.0380 (16) | 0.0142 (14) | 0.0264 (13) | 0.0015 (11) | 0.0131 (11) | 0.0010 (10) |
C10 | 0.0345 (15) | 0.0134 (13) | 0.0250 (12) | −0.0007 (11) | 0.0092 (10) | 0.0024 (10) |
C11 | 0.0340 (15) | 0.0198 (14) | 0.0298 (13) | −0.0001 (11) | 0.0100 (11) | 0.0007 (11) |
C12 | 0.0370 (16) | 0.0124 (13) | 0.0234 (12) | 0.0004 (11) | 0.0098 (11) | 0.0046 (10) |
C13 | 0.0314 (16) | 0.0297 (16) | 0.0371 (14) | −0.0014 (12) | 0.0062 (11) | −0.0047 (11) |
C14 | 0.0374 (17) | 0.0434 (19) | 0.0449 (17) | 0.0026 (13) | 0.0039 (13) | 0.0049 (13) |
C15 | 0.0373 (17) | 0.0363 (18) | 0.0537 (17) | 0.0001 (13) | 0.0150 (13) | 0.0018 (13) |
C16 | 0.0402 (16) | 0.0268 (16) | 0.0456 (16) | 0.0066 (12) | 0.0171 (12) | 0.0004 (12) |
C17 | 0.0294 (14) | 0.0313 (16) | 0.0270 (13) | −0.0015 (12) | 0.0062 (10) | −0.0013 (11) |
C18 | 0.0324 (15) | 0.0278 (16) | 0.0341 (14) | 0.0013 (11) | 0.0079 (11) | 0.0006 (11) |
Geometric parameters (Å, º) top
O1—C1 | 1.237 (3) | C8—H8A | 0.9500 |
O2—C11 | 1.225 (3) | C9—C10 | 1.380 (3) |
O3—C18 | 1.410 (3) | C9—H9A | 0.9500 |
O3—H3O | 0.92 (3) | C10—C12 | 1.414 (3) |
N1—C11 | 1.402 (3) | C10—C11 | 1.469 (3) |
N1—C1 | 1.405 (3) | C13—C15 | 1.519 (4) |
N1—C13 | 1.493 (3) | C13—C14 | 1.520 (4) |
N2—C5 | 1.384 (3) | C13—H13A | 1.0000 |
N2—C16 | 1.459 (3) | C14—H14A | 0.9800 |
N2—C17 | 1.465 (3) | C14—H14B | 0.9800 |
C1—C2 | 1.455 (4) | C14—H14C | 0.9800 |
C2—C3 | 1.380 (3) | C15—H15A | 0.9800 |
C2—C12 | 1.412 (3) | C15—H15B | 0.9800 |
C3—C4 | 1.388 (4) | C15—H15C | 0.9800 |
C3—H3B | 0.9500 | C16—H16A | 0.9800 |
C4—C5 | 1.395 (3) | C16—H16B | 0.9800 |
C4—H4A | 0.9500 | C16—H16C | 0.9800 |
C5—C6 | 1.451 (3) | C17—C18 | 1.514 (3) |
C6—C7 | 1.414 (3) | C17—H17A | 0.9900 |
C6—C12 | 1.425 (3) | C17—H17B | 0.9900 |
C7—C8 | 1.372 (3) | C18—H18A | 0.9900 |
C7—H7A | 0.9500 | C18—H18B | 0.9900 |
C8—C9 | 1.393 (3) | | |
| | | |
C18—O3—H3O | 113 (2) | C2—C12—C10 | 119.5 (2) |
C11—N1—C1 | 123.3 (2) | C2—C12—C6 | 120.9 (2) |
C11—N1—C13 | 118.9 (2) | C10—C12—C6 | 119.5 (2) |
C1—N1—C13 | 117.75 (19) | N1—C13—C15 | 111.1 (2) |
C5—N2—C16 | 119.0 (2) | N1—C13—C14 | 112.5 (2) |
C5—N2—C17 | 122.6 (2) | C15—C13—C14 | 114.3 (2) |
C16—N2—C17 | 115.5 (2) | N1—C13—H13A | 106.1 |
O1—C1—N1 | 119.3 (2) | C15—C13—H13A | 106.1 |
O1—C1—C2 | 122.8 (2) | C14—C13—H13A | 106.1 |
N1—C1—C2 | 117.9 (2) | C13—C14—H14A | 109.5 |
C3—C2—C12 | 118.8 (2) | C13—C14—H14B | 109.5 |
C3—C2—C1 | 120.1 (2) | H14A—C14—H14B | 109.5 |
C12—C2—C1 | 121.1 (2) | C13—C14—H14C | 109.5 |
C2—C3—C4 | 121.7 (2) | H14A—C14—H14C | 109.5 |
C2—C3—H3B | 119.1 | H14B—C14—H14C | 109.5 |
C4—C3—H3B | 119.1 | C13—C15—H15A | 109.5 |
C3—C4—C5 | 121.7 (2) | C13—C15—H15B | 109.5 |
C3—C4—H4A | 119.2 | H15A—C15—H15B | 109.5 |
C5—C4—H4A | 119.2 | C13—C15—H15C | 109.5 |
N2—C5—C4 | 120.2 (2) | H15A—C15—H15C | 109.5 |
N2—C5—C6 | 121.7 (2) | H15B—C15—H15C | 109.5 |
C4—C5—C6 | 118.0 (2) | N2—C16—H16A | 109.5 |
C7—C6—C12 | 117.6 (2) | N2—C16—H16B | 109.5 |
C7—C6—C5 | 123.6 (2) | H16A—C16—H16B | 109.5 |
C12—C6—C5 | 118.6 (2) | N2—C16—H16C | 109.5 |
C8—C7—C6 | 121.7 (2) | H16A—C16—H16C | 109.5 |
C8—C7—H7A | 119.2 | H16B—C16—H16C | 109.5 |
C6—C7—H7A | 119.2 | N2—C17—C18 | 114.2 (2) |
C7—C8—C9 | 120.2 (2) | N2—C17—H17A | 108.7 |
C7—C8—H8A | 119.9 | C18—C17—H17A | 108.7 |
C9—C8—H8A | 119.9 | N2—C17—H17B | 108.7 |
C10—C9—C8 | 120.3 (2) | C18—C17—H17B | 108.7 |
C10—C9—H9A | 119.9 | H17A—C17—H17B | 107.6 |
C8—C9—H9A | 119.9 | O3—C18—C17 | 111.7 (2) |
C9—C10—C12 | 120.4 (2) | O3—C18—H18A | 109.3 |
C9—C10—C11 | 118.9 (2) | C17—C18—H18A | 109.3 |
C12—C10—C11 | 120.6 (2) | O3—C18—H18B | 109.3 |
O2—C11—N1 | 120.0 (2) | C17—C18—H18B | 109.3 |
O2—C11—C10 | 122.3 (2) | H18A—C18—H18B | 107.9 |
N1—C11—C10 | 117.6 (2) | | |
Hydrogen-bond geometry (Å, º) top
D—H···A | D—H | H···A | D···A | D—H···A |
O3—H3O···O1i | 0.92 (3) | 1.92 (3) | 2.816 (3) | 166 (3) |
C7—H7A···O3ii | 0.95 | 2.42 | 3.162 (3) | 135 |
Symmetry codes: (i) −x+1, −y+1, −z+1; (ii) x, −y+3/2, z+1/2. |
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