N′-{2-[2-(4-Methoxyphenyl)ethenyl]phenyl}acetamide

Abstract

In the title compound, C₁₇H₁₇NO₂, the phenyl­ene rings are nearly coplanar [dihedral angle 7.3 (1)°]. The acetamido group is twisted out of the plane of the aromatic ring in order to form an N–H⋯O hydrogen bond to the acetamido group of an adjacent mol­ecule, generating a helical chain running along the b axis.

Related literature

The compound was synthesized in a study on indolostilbenes; see: Ahmad et al. (2009 ▶).

Experimental

Crystal data

• C₁₇H₁₇NO₂

• M _r = 267.32

• Monoclinic,

• a = 5.4225 (1) Å

• b = 9.4222 (2) Å

• c = 13.5653 (3) Å

• β = 98.402 (1)°

• V = 685.64 (2) ų

• Z = 2

• Mo Kα radiation

• μ = 0.09 mm⁻¹

• T = 100 K

• 0.25 × 0.20 × 0.20 mm

Data collection

• Bruker SMART APEX diffractometer

• Absorption correction: none

• 4781 measured reflections

• 1654 independent reflections

• 1605 reflections with I > 2σ(I)

• R _int = 0.016

Refinement

• R[F ² > 2σ(F ²)] = 0.033

• wR(F ²) = 0.096

• S = 1.05

• 1654 reflections

• 187 parameters

• 2 restraints

• H atoms treated by a mixture of independent and constrained refinement

• Δρ_max = 0.25 e Å⁻³

• Δρ_min = −0.22 e Å⁻³

Data collection: APEX2 (Bruker, 2008 ▶); cell refinement: SAINT (Bruker, 2008 ▶); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008 ▶); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008 ▶); molecular graphics: X-SEED (Barbour, 2001 ▶); software used to prepare material for publication: publCIF (Westrip, 2009 ▶).

Supplementary Material

Additional supplementary materials: crystallographic information; 3D view; checkCIF report

Table 1. Hydrogen-bond geometry (Å, °).

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1—H1⋯O1i	0.88 (1)	2.03 (1)	2.895 (2)	169 (2)

Symmetry code: (i) .

supplementary crystallographic information

Experimental

The compound was synthesized in a study on indolostilbenes (Ahmad et al., 2009). Crystals were grown from its solution in ethyl acetate.

Refinement

Hydrogen atoms were placed at calculated positions (C–H 0.95–0.98 Å) and were treated as riding on their parent carbon atoms, with U(H) set to 1.2–1.5 times U_eq(C). The amino H-atom was located in a difference Fourier map, and was refined with a distance restraint of N–H 0.88±0.01 Å; its temperature factor was refined. Friedel pairs were merged.

Figures

Fig. 1.

Thermal ellipsoid plot (Barbour, 2001) of C17H17NO2 at the 70% probability level. Hydrogen atoms are drawn as spheres of arbitrary radius.

Crystal data

C17H17NO2	F(000) = 284
Mr = 267.32	Dx = 1.295 Mg m−3
Monoclinic, P21	Mo Kα radiation, λ = 0.71073 Å
Hall symbol: P 2yb	Cell parameters from 3188 reflections
a = 5.4225 (1) Å	θ = 2.6–28.3°
b = 9.4222 (2) Å	µ = 0.09 mm−1
c = 13.5653 (3) Å	T = 100 K
β = 98.402 (1)°	Block, colorless
V = 685.64 (2) Å3	0.25 × 0.20 × 0.20 mm
Z = 2

Data collection

Bruker SMART APEX diffractometer	1605 reflections with I > 2σ(I)
Radiation source: fine-focus sealed tube	Rint = 0.016
graphite	θmax = 27.5°, θmin = 1.5°
ω scans	h = −7→6
4781 measured reflections	k = −11→12
1654 independent reflections	l = −17→17

Refinement

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)] = 0.033	Hydrogen site location: inferred from neighbouring sites
wR(F2) = 0.096	H atoms treated by a mixture of independent and constrained refinement
S = 1.05	w = 1/[σ2(Fo2) + (0.0726P)2 + 0.080P] where P = (Fo2 + 2Fc2)/3
1654 reflections	(Δ/σ)max = 0.001
187 parameters	Δρmax = 0.25 e Å−3
2 restraints	Δρmin = −0.22 e Å−3

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Ų)

	x	y	z	Uiso*/Ueq
O1	0.5611 (2)	−0.00004 (14)	0.48762 (9)	0.0210 (3)
O2	0.0298 (2)	0.84291 (14)	0.93515 (9)	0.0198 (3)
N1	0.6516 (3)	0.22034 (16)	0.55197 (10)	0.0142 (3)
H1	0.597 (4)	0.3083 (13)	0.5476 (17)	0.021 (6)*
C1	0.8511 (3)	0.18307 (17)	0.62796 (11)	0.0137 (3)
C2	1.0223 (3)	0.07880 (19)	0.60968 (12)	0.0167 (3)
H2	0.9996	0.0294	0.5480	0.020*
C3	1.2247 (3)	0.0471 (2)	0.68092 (13)	0.0178 (3)
H3	1.3400	−0.0242	0.6683	0.021*
C4	1.2586 (3)	0.12030 (19)	0.77122 (13)	0.0186 (4)
H4	1.3989	0.1001	0.8198	0.022*
C5	1.0881 (3)	0.22226 (19)	0.79020 (12)	0.0163 (3)
H5	1.1130	0.2709	0.8522	0.020*
C6	0.8790 (3)	0.25582 (17)	0.72004 (12)	0.0134 (3)
C7	0.5199 (3)	0.12874 (19)	0.48755 (12)	0.0154 (3)
C8	0.3184 (3)	0.1947 (2)	0.41365 (12)	0.0197 (4)
H8A	0.1965	0.1219	0.3881	0.030*
H8B	0.3925	0.2354	0.3583	0.030*
H8C	0.2351	0.2697	0.4465	0.030*
C9	0.6925 (3)	0.36010 (18)	0.74194 (12)	0.0138 (3)
H9	0.5492	0.3725	0.6934	0.017*
C10	0.7082 (3)	0.43902 (18)	0.82474 (12)	0.0139 (3)
H10	0.8543	0.4281	0.8721	0.017*
C11	0.5219 (3)	0.54060 (17)	0.84945 (12)	0.0133 (3)
C12	0.3218 (3)	0.58920 (19)	0.78032 (12)	0.0167 (3)
H12	0.2993	0.5521	0.7145	0.020*
C13	0.1558 (3)	0.6903 (2)	0.80590 (12)	0.0176 (4)
H13	0.0238	0.7230	0.7574	0.021*
C14	0.1830 (3)	0.74359 (17)	0.90263 (13)	0.0159 (3)
C15	0.3793 (3)	0.6960 (2)	0.97288 (12)	0.0174 (3)
H15	0.3988	0.7316	1.0391	0.021*
C16	0.5455 (3)	0.59685 (19)	0.94598 (12)	0.0166 (3)
H16	0.6794	0.5661	0.9943	0.020*
C17	−0.1752 (3)	0.8937 (2)	0.86533 (13)	0.0195 (4)
H17A	−0.2719	0.9622	0.8983	0.029*
H17B	−0.2822	0.8138	0.8405	0.029*
H17C	−0.1116	0.9399	0.8094	0.029*

Atomic displacement parameters (Ų)

	U11	U22	U33	U12	U13	U23
O1	0.0263 (7)	0.0130 (6)	0.0215 (6)	0.0003 (5)	−0.0038 (5)	−0.0027 (5)
O2	0.0180 (6)	0.0207 (7)	0.0199 (6)	0.0059 (5)	0.0003 (4)	−0.0056 (5)
N1	0.0181 (7)	0.0110 (6)	0.0128 (6)	0.0011 (5)	−0.0004 (5)	−0.0001 (5)
C1	0.0146 (7)	0.0124 (8)	0.0138 (7)	−0.0028 (6)	0.0010 (6)	0.0009 (6)
C2	0.0195 (8)	0.0147 (8)	0.0164 (7)	−0.0003 (6)	0.0038 (6)	−0.0019 (6)
C3	0.0163 (7)	0.0163 (8)	0.0214 (8)	0.0033 (7)	0.0051 (6)	0.0014 (7)
C4	0.0145 (7)	0.0181 (8)	0.0221 (8)	0.0011 (7)	−0.0005 (6)	0.0026 (7)
C5	0.0171 (8)	0.0165 (8)	0.0146 (7)	−0.0010 (7)	−0.0002 (6)	−0.0011 (6)
C6	0.0157 (8)	0.0107 (7)	0.0139 (7)	−0.0019 (6)	0.0019 (6)	0.0002 (6)
C7	0.0191 (8)	0.0149 (9)	0.0122 (7)	−0.0011 (6)	0.0021 (6)	−0.0003 (6)
C8	0.0239 (8)	0.0181 (9)	0.0151 (8)	0.0006 (7)	−0.0042 (6)	0.0003 (6)
C9	0.0142 (7)	0.0131 (7)	0.0135 (7)	0.0001 (6)	−0.0003 (5)	0.0003 (6)
C10	0.0160 (7)	0.0115 (7)	0.0139 (7)	0.0002 (6)	0.0014 (5)	0.0020 (6)
C11	0.0153 (7)	0.0108 (8)	0.0140 (7)	−0.0011 (6)	0.0028 (6)	0.0006 (6)
C12	0.0191 (8)	0.0164 (8)	0.0137 (7)	−0.0003 (7)	−0.0004 (6)	−0.0031 (6)
C13	0.0155 (8)	0.0186 (9)	0.0173 (8)	0.0007 (7)	−0.0020 (6)	−0.0021 (7)
C14	0.0151 (7)	0.0126 (8)	0.0203 (8)	−0.0001 (6)	0.0032 (6)	−0.0010 (6)
C15	0.0225 (8)	0.0174 (8)	0.0121 (7)	0.0011 (7)	0.0022 (6)	−0.0019 (6)
C16	0.0194 (8)	0.0161 (8)	0.0134 (7)	0.0015 (7)	−0.0008 (6)	0.0008 (6)
C17	0.0165 (8)	0.0179 (8)	0.0236 (8)	0.0030 (7)	0.0012 (6)	0.0005 (7)

Geometric parameters (Å, °)

O1—C7	1.234 (2)	C8—H8B	0.9800
O2—C14	1.367 (2)	C8—H8C	0.9800
O2—C17	1.433 (2)	C9—C10	1.339 (2)
N1—C7	1.355 (2)	C9—H9	0.9500
N1—C1	1.425 (2)	C10—C11	1.465 (2)
N1—H1	0.879 (10)	C10—H10	0.9500
C1—C2	1.398 (2)	C11—C16	1.401 (2)
C1—C6	1.413 (2)	C11—C12	1.403 (2)
C2—C3	1.385 (2)	C12—C13	1.389 (2)
C2—H2	0.9500	C12—H12	0.9500
C3—C4	1.394 (3)	C13—C14	1.393 (2)
C3—H3	0.9500	C13—H13	0.9500
C4—C5	1.383 (2)	C14—C15	1.395 (2)
C4—H4	0.9500	C15—C16	1.384 (2)
C5—C6	1.406 (2)	C15—H15	0.9500
C5—H5	0.9500	C16—H16	0.9500
C6—C9	1.471 (2)	C17—H17A	0.9800
C7—C8	1.505 (2)	C17—H17B	0.9800
C8—H8A	0.9800	C17—H17C	0.9800
C14—O2—C17	117.70 (13)	C10—C9—C6	125.37 (14)
C7—N1—C1	125.62 (15)	C10—C9—H9	117.3
C7—N1—H1	114.7 (15)	C6—C9—H9	117.3
C1—N1—H1	119.5 (15)	C9—C10—C11	126.38 (15)
C2—C1—C6	120.61 (15)	C9—C10—H10	116.8
C2—C1—N1	119.89 (14)	C11—C10—H10	116.8
C6—C1—N1	119.45 (14)	C16—C11—C12	117.21 (15)
C3—C2—C1	120.45 (15)	C16—C11—C10	119.28 (15)
C3—C2—H2	119.8	C12—C11—C10	123.48 (14)
C1—C2—H2	119.8	C13—C12—C11	121.52 (15)
C2—C3—C4	119.71 (16)	C13—C12—H12	119.2
C2—C3—H3	120.1	C11—C12—H12	119.2
C4—C3—H3	120.1	C12—C13—C14	119.98 (15)
C5—C4—C3	120.08 (16)	C12—C13—H13	120.0
C5—C4—H4	120.0	C14—C13—H13	120.0
C3—C4—H4	120.0	O2—C14—C13	124.45 (15)
C4—C5—C6	121.68 (15)	O2—C14—C15	116.02 (14)
C4—C5—H5	119.2	C13—C14—C15	119.53 (15)
C6—C5—H5	119.2	C16—C15—C14	119.89 (15)
C5—C6—C1	117.44 (15)	C16—C15—H15	120.1
C5—C6—C9	121.59 (14)	C14—C15—H15	120.1
C1—C6—C9	120.95 (14)	C15—C16—C11	121.86 (15)
O1—C7—N1	123.22 (16)	C15—C16—H16	119.1
O1—C7—C8	121.35 (16)	C11—C16—H16	119.1
N1—C7—C8	115.43 (16)	O2—C17—H17A	109.5
C7—C8—H8A	109.5	O2—C17—H17B	109.5
C7—C8—H8B	109.5	H17A—C17—H17B	109.5
H8A—C8—H8B	109.5	O2—C17—H17C	109.5
C7—C8—H8C	109.5	H17A—C17—H17C	109.5
H8A—C8—H8C	109.5	H17B—C17—H17C	109.5
H8B—C8—H8C	109.5
C7—N1—C1—C2	38.5 (2)	C1—C6—C9—C10	−176.68 (16)
C7—N1—C1—C6	−143.74 (16)	C6—C9—C10—C11	−178.20 (15)
C6—C1—C2—C3	−1.2 (2)	C9—C10—C11—C16	169.14 (16)
N1—C1—C2—C3	176.45 (14)	C9—C10—C11—C12	−12.9 (3)
C1—C2—C3—C4	−0.4 (3)	C16—C11—C12—C13	0.9 (2)
C2—C3—C4—C5	1.2 (3)	C10—C11—C12—C13	−177.13 (16)
C3—C4—C5—C6	−0.4 (3)	C11—C12—C13—C14	−1.3 (3)
C4—C5—C6—C1	−1.1 (2)	C17—O2—C14—C13	1.1 (2)
C4—C5—C6—C9	177.47 (16)	C17—O2—C14—C15	−179.56 (15)
C2—C1—C6—C5	2.0 (2)	C12—C13—C14—O2	−179.96 (16)
N1—C1—C6—C5	−175.74 (15)	C12—C13—C14—C15	0.8 (3)
C2—C1—C6—C9	−176.66 (14)	O2—C14—C15—C16	−179.11 (15)
N1—C1—C6—C9	5.6 (2)	C13—C14—C15—C16	0.2 (3)
C1—N1—C7—O1	−0.4 (3)	C14—C15—C16—C11	−0.7 (3)
C1—N1—C7—C8	−179.72 (14)	C12—C11—C16—C15	0.1 (2)
C5—C6—C9—C10	4.8 (3)	C10—C11—C16—C15	178.23 (16)

Hydrogen-bond geometry (Å, °)

D—H···A	D—H	H···A	D···A	D—H···A
N1—H1···O1i	0.88 (1)	2.03 (1)	2.895 (2)	169 (2)

Symmetry codes: (i) −x+1, y+1/2, −z+1.