Crystal structure and Hirshfeld surface analysis of (Z)-2-{[(2,4-di­methyl­phen­yl)imino]­meth­yl}-4-methyl­phenol

Kansiz, S.; Gul, A.; Dege, N.; Agar, E.; Saif, E.

doi:10.1107/S2056989021010215

research communications

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ISSN: 2056-9890

Volume 77| Part 11| November 2021| Pages 1087-1090

https://doi.org/10.1107/S2056989021010215

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Crystal structure and Hirshfeld surface analysis of (Z)-2-{[(2,4-dimethylphenyl)imino]methyl}-4-methylphenol

Sevgi Kansiz,^a ^* Adem Gul,^b Necmi Dege,^c Erbil Agar ^d and Eiad Saif ^e,^f ^*

^aSamsun University, Faculty of Engineering, Department of Fundamental Sciences, 55420, Samsun, Turkey, ^bAkay Pharma Medicine and Health Products Industries & Trade, 34000, Istanbul, Turkey, ^cOndokuz Mayıs University, Faculty of Arts and Sciences, Department of Physics, 55139, Samsun, Turkey, ^dOndokuz Mayıs University, Faculty of Arts and Sciences, Department of Chemistry, 55139, Samsun, Turkey, ^eDepartment of Computer and Electronic Engineering Technology, Sanaa Community College, Sanaa, Yemen, and ^fDepartment of Electrical and Electronic Engineering, Faculty of Engineering, Ondokuz Mayıs University, 55139, Samsun, Turkey
^*Correspondence e-mail: sevgi.kansiz@samsun.edu.tr, eiad.saif@scc.edu.ye

Edited by A. V. Yatsenko, Moscow State University, Russia (Received 20 September 2021; accepted 3 October 2021; online 13 October 2021)

The title compound, C₁₆H₁₇NO, is a Schiff base that exists in the enol–imine tautomeric form and adopts a Z configuration. The molecule is non-planar, with the twisted rings making a dihedral angle of 39.92 (4)°. The intramolecular O—H⋯N hydrogen bond forms an S(6) ring motif. In the crystal, molecules are linked by C—H⋯π interactions and very weak π-π stacking interactions also help to consolidate the crystal packing. A Hirshfeld surface analysis was performed to investigate the contributions of different intermolecular contacts within the supramolecular structure. The major contributions are from H⋯H (65%), C⋯H (19.2%) and O⋯H (6.6%) interactions.

Keywords: crystal structure; Schiff base; enol–imine tautomer; C—H⋯π interactions; Hirshfeld surface analysis.

CCDC reference: 2113562

1. Chemical context

Schiff bases are well-known organic compounds widely used in many areas. These compounds can be easily synthesized by condensation of a primary aliphatic or aromatic amine with an aldehyde or ketone in different solvent media and they can easily be purified, since the amount of by-products is negligible (Tanak et al., 2020 ). Schiff bases are in general more stable than the compounds from which they are synthesized (Wadher et al., 2009 ). Nowadays, the possibility of molecular design is an important key for many research areas such as medicine or agriculture. In this respect, Schiff base formation provides an easy way to design new compounds, and biologically or chemically active compounds can be obtained using this method. As the structures of Schiff bases are generally similar to those of biological molecules, Schiff bases are valuable for understanding biological phenomena. As a result, Schiff bases are used in many studies. Various types of aldehydes or ketones have been used for their synthesis, but 2-hydroxybenzaldehyde and its derivatives are used especially often (Jeewoth et al., 2000 ; Mazhar et al., 2020 ). The basis of such preference is the tautomerism and stability provided by the hydroxyl group in conjunction with the imine group. Schiff bases with intramolecular hydrogen bonds can exhibit photochromic and thermochromic properties (Elerman et al., 2002 ). Schiff bases obtained from 2-hydroxybenzaldehyde and its derivatives can also form complexes with various metal ions. The title compound is a Schiff base prepared from 2-hydroxy-5-methylbenzaldehyde.

2. Structural commentary

The title compound crystallizes in the phenol–imine tautomeric form with an Z configuration with respect to the imine bond. The asymmetric unit contains one molecule (Fig. 1), which is non-planar, two aromatic rings being twisted with respect to each other, subtending a dihedral angle of 39.92 (4)°. The hydroxy and imine groups are involved in a strong intramolecular O1—H1⋯N1 hydrogen bond forming an S(6) ring motif. The C1—O1 [1.353 (2) Å] and C7—N1 [1.282 (2) Å] bond distances indicate their single- and double-bond characters, respectively, being consistent with the phenol–imine tautomeric form.

Figure 1
The molecular structure of the title compound, with atom labelling. Displacement ellipsoids are drawn at the 40% probability level. Dashed lines denote the intramolecular O—H⋯N hydrogen bond forming an S(6) ring motif.

3. Supramolecular features

In the crystal, molecules are linked by C16—H16A⋯π (C9–C14) interactions (Table 1, Fig. 2), and very weak π–π stacking interactions between the OH-substituted rings (C1–C6) related by the a glide plane [Cg⋯Cg (− $[{1\over 2}]$ + x, y, $[{1\over 2}]$ − z) = 4.0220 (9) Å] lead to additional stabilization of the crystal packing. A view of the crystal packing parallel to the bc plane is shown in Fig. 2.

Table 1
Hydrogen-bond geometry (Å, °)

Cg2 is the centroid of the C9–C14 ring.

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O1—H1⋯N1	0.82	1.89	2.618 (2)	147
C16—H16A⋯Cg2ⁱ	0.96	2.93 (3)	3.73	143
Symmetry code: (i) $[x+{\script{1\over 2}}, -y+{\script{1\over 2}}, -z]$ .

Figure 2
A view of the crystal packing of the title compound. The C16—H16A⋯Cg2 interactions are denoted as dashed lines and as a red spot on the d_e surface.

4. Database survey

A search of the Cambridge Structural Database (CSD, version 5.42, update of May 2021; Groom et al., 2016 ) for the (Z)-2-{[(2,4-dimethylphenyl)imino]methyl}-4-methylphenol unit, revealed ten hits where this fragment adopts the enol–imine tautomeric form. The imine bond length (N1—C7) in the title compound is the same within standard uncertainties as the corresponding bond lengths in the structures of 2-(diphenylmethyl)-6-[(mesitylimino)methyl]-4-methylphenol (DEHQIS; Zhou et al., 2012 ), (R)-N,N′-bis(3,5-di-t-butylsalicylidene)-5,5′,6,6′,7,7′,8,8′-octahydro-1,1′-binaphthyl-2,2′-diamine (MIFXAA; Jia et al., 2002 ), acetonitrile-bis{2-(mesitylcarbonoimidoyl)-6-[(mesitylimino)methyl]-4-methylphenolato}magnesium acetonitrile solvate (QUDZAS; Ghosh et al., 2015 ), bis{2,4-di-t-butyl-6-[(mesitylimino)methyl]phenolato}tetrahydrofuranmagnesium (QUDZIA; Ghosh et al., 2015) and 2,4-di-t-butyl-6-{[(2,4,6-tri-t-butylphenyl)imino]methyl}phenol (YADZOV; Ma et al., 2016 ). As for the C1—O1 bond [1.353 (2) Å], its length compares well with 1.352 (2) Å for YADZOV and 1.359 (5) Å for DEHQIS. All other bond dimensions in the title structure agree well with those in previous literature reports. In NUGWES, NUGWIW and NUGWOC (Xu et al., 2009 ) and in YADZOV (Ma et al., 2016), the lengths of intramolecular O—H⋯N hydrogen bonds are especially short, being within the range 1.81–1.88 Å.

5. Hirshfeld surface analysis

We have performed a Hirshfeld surface analysis and generated the associated two-dimensional fingerprint plots (Spackman & Jayatilaka, 2009 ) with CrystalExplorer17 (Turner et al., 2017 ). Hirshfeld surface analysis is an important way of determining the location of atoms with potential to form hydrogen bonds and other intermolecular contacts, and the quantitative ratio of these interactions (Demircioğlu et al., 2019 ). The Hirshfeld surface was generated using a standard (high) surface resolution with the three-dimensional d_norm surface mapped over a fixed colour scale of −0.1168 (red) to 1.1632 Å (blue) (the fixed colour scale is 1.0201 to 2.4894 Å for the d_e surface). In Figs. 2 and 3, the red spots on the d_norm and d_e surfaces represent the C—H⋯Cg interactions. The most important interaction is H⋯H, contributing 65% to the overall crystal packing, which is illustrated in the 2D fingerprint (Fig. 4). Two symmetrical wings on the left and right sides are seen in the fingerprint plot for C⋯H/H⋯C interactions, the second most important contributor to the total Hirshfeld surface (19%). The O⋯H/H⋯O interactions provide a 6.6% contribution to the total Hirshfeld surface. Much weaker C⋯C (5.3%), N⋯H/H⋯N (2.3%) and C⋯O/O⋯C (1.3%) contacts are also present.

Figure 3
The red spots on the d_norm and d_e surfaces of the title molecule represent the C—H⋯π interactions.

Figure 4
Fingerprint plots showing all intermolecular interactions and resolved into H⋯H, C⋯H/H⋯C and O⋯H/H⋯O contacts.

6. Synthesis and crystallization

(Z)-2-{[(2,4-dimethylphenyl)imino]methyl}-4-methylphenol was synthesized by condensation of 2-hydroxy-5-methylbenzaldehyde and 2,4-dimethylaniline (Fig. 5). For this purpose, a mixture of a solution containing 2-hydroxy-5-methylbenzaldehyde (0.04 mmol) in ethanol (20 mL) and a solution containing 2,4-dimethylaniline (0.04 mmol) in ethanol (20 mL) was refluxed for 6 h under stirring. The obtained crystalline product was washed with ethanol and dried at room temperature. Single crystals were obtained by slow evaporation of ethanol solution at room temperature.

Figure 5
The scheme of synthesis of the title compound.

7. Refinement

Crystal data, data collection and structure refinement details are summarized in Table 2. The O-bound H atom was located in a difference-Fourier map and refined with O—H = 0.82 Å, and with U_iso(H) = 1.5U_eq(O). The C-bound H atoms were positioned geometrically and refined using a riding model with C—H = 0.93 and U_iso(H) = 1.2U_eq(C) for sp²-hybridized C atoms and with C—H = 0.96 Å and U_iso(H) = 1.5U_eq(C) for methyl groups.

Table 2
Experimental details

Crystal data
Chemical formula	C₁₆H₁₇NO
M_r	239.30
Crystal system, space group	Orthorhombic, Pbca
Temperature (K)	296
a, b, c (Å)	7.6699 (4), 11.6080 (6), 30.1431 (17)
V (Å³)	2683.7 (2)
Z	8
Radiation type	Mo Kα
μ (mm⁻¹)	0.07
Crystal size (mm)	0.68 × 0.48 × 0.18

Data collection
Diffractometer	Stoe IPDS 2
Absorption correction	Integration (X-RED32; Stoe & Cie, 2002 )
T_min, T_max	0.953, 0.990
No. of measured, independent and observed [I > 2σ(I)] reflections	14869, 2213, 1451
R_int	0.081
(sin θ/λ)_max (Å⁻¹)	0.583

Refinement
R[F² > 2σ(F²)], wR(F²), S	0.042, 0.125, 1.00
No. of reflections	2213
No. of parameters	168
H-atom treatment	H-atom parameters constrained
Δρ_max, Δρ_min (e Å⁻³)	0.11, −0.11
Computer programs: X-AREA (Stoe & Cie, 2002), X-RED (Stoe & Cie, 2002), SHELXT2017/1 (Sheldrick, 2015a ), SHELXL2017/1 (Sheldrick, 2015b ), PLATON (Spek, 2020 ), WinGX (Farrugia, 2012 ).

Supporting information

CCDC reference: 2113562

Crystal structure: contains datablock I. DOI: https://doi.org/10.1107/S2056989021010215/yk2157sup1.cif

Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S2056989021010215/yk2157Isup2.hkl

Supporting information file. DOI: https://doi.org/10.1107/S2056989021010215/yk2157Isup3.cml

checkCIF report

Computing details top

Data collection: X-AREA (Stoe & Cie, 2002); cell refinement: X-AREA (Stoe & Cie, 2002); data reduction: X-RED (Stoe & Cie, 2002); program(s) used to solve structure: SHELXT2017/1 (Sheldrick, 2015a); program(s) used to refine structure: SHELXL2017/1 (Sheldrick, 2015b); molecular graphics: PLATON (Spek, 2020); software used to prepare material for publication: WinGX (Farrugia, 2012).

(Z)-2-{[(2,4-Dimethylphenyl)imino]methyl}-4-methylphenol top

Crystal data top

C₁₆H₁₇NO	D_x = 1.185 Mg m⁻³
M_r = 239.30	Mo Kα radiation, λ = 0.71073 Å
Orthorhombic, Pbca	Cell parameters from 13620 reflections
a = 7.6699 (4) Å	θ = 1.4–24.9°
b = 11.6080 (6) Å	µ = 0.07 mm⁻¹
c = 30.1431 (17) Å	T = 296 K
V = 2683.7 (2) Å³	Plate, orange
Z = 8	0.68 × 0.48 × 0.18 mm
F(000) = 1024

Data collection top

Stoe IPDS 2 diffractometer	2213 independent reflections
Radiation source: sealed X-ray tube, 12 x 0.4 mm long-fine focus	1451 reflections with I > 2σ(I)
Detector resolution: 6.67 pixels mm^-1	R_int = 0.081
rotation method scans	θ_max = 24.5°, θ_min = 1.4°
Absorption correction: integration (X-RED32; Stoe & Cie, 2002)	h = −8→8
T_min = 0.953, T_max = 0.990	k = −13→13
14869 measured reflections	l = −34→34

Refinement top

Refinement on F²	Hydrogen site location: inferred from neighbouring sites
Least-squares matrix: full	H-atom parameters constrained
R[F² > 2σ(F²)] = 0.042	w = 1/[σ²(F_o²) + (0.0725P)²] where P = (F_o² + 2F_c²)/3
wR(F²) = 0.125	(Δ/σ)_max < 0.001
S = 1.00	Δρ_max = 0.11 e Å⁻³
2213 reflections	Δρ_min = −0.11 e Å⁻³
168 parameters	Extinction correction: file:///iucrfs/e/yk2157/yk2157.cif, Fc^*=kFc[1+0.001xFc²λ³/sin(2θ)]^-1/4
0 restraints	Extinction coefficient: 0.0094 (14)
Primary atom site location: structure-invariant direct methods

Special details top

Geometry. All esds (except the esd in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell esds are taken into account individually in the estimation of esds in distances, angles and torsion angles; correlations between esds in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell esds is used for estimating esds involving l.s. planes.

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å²) top

	x	y	z	U_iso*/U_eq
O1	0.3099 (2)	0.58146 (10)	0.30727 (4)	0.0844 (4)
H1	0.330751	0.540427	0.328769	0.127*
N1	0.42492 (18)	0.40012 (12)	0.34984 (5)	0.0663 (4)
C6	0.4130 (2)	0.40987 (13)	0.27056 (6)	0.0569 (4)
C5	0.4477 (2)	0.35487 (14)	0.23014 (5)	0.0595 (4)
H5	0.495649	0.281288	0.230684	0.071*
C7	0.4516 (2)	0.35261 (15)	0.31204 (6)	0.0611 (5)
H7	0.497415	0.278473	0.311267	0.073*
C1	0.3426 (2)	0.52223 (13)	0.26953 (6)	0.0630 (5)
C9	0.4629 (2)	0.33967 (15)	0.38970 (6)	0.0633 (5)
C4	0.4139 (2)	0.40502 (16)	0.18961 (6)	0.0648 (5)
C14	0.5297 (2)	0.40228 (16)	0.42555 (6)	0.0692 (5)
C10	0.4302 (2)	0.22231 (16)	0.39438 (6)	0.0724 (5)
H10	0.383752	0.180914	0.370760	0.087*
C2	0.3077 (2)	0.57301 (15)	0.22917 (7)	0.0739 (5)
H2	0.259857	0.646596	0.228269	0.089*
C3	0.3428 (2)	0.51607 (16)	0.19032 (7)	0.0736 (5)
H3	0.318475	0.552460	0.163539	0.088*
C12	0.5363 (2)	0.22599 (19)	0.46974 (6)	0.0759 (6)
C13	0.5668 (2)	0.34303 (19)	0.46426 (6)	0.0771 (6)
H13	0.614731	0.383787	0.487863	0.093*
C11	0.4663 (3)	0.16695 (17)	0.43391 (6)	0.0774 (5)
H11	0.443232	0.088594	0.436544	0.093*
C8	0.4528 (3)	0.34410 (19)	0.14659 (6)	0.0893 (6)
H8A	0.524423	0.392488	0.128285	0.134*
H8B	0.345600	0.327600	0.131447	0.134*
H8C	0.513250	0.273397	0.152645	0.134*
C15	0.5618 (3)	0.53050 (18)	0.42172 (7)	0.0970 (7)
H15A	0.638745	0.545186	0.397253	0.145*
H15B	0.613945	0.558242	0.448631	0.145*
H15C	0.453020	0.569432	0.416857	0.145*
C16	0.5729 (3)	0.1666 (2)	0.51352 (7)	0.1014 (7)
H16A	0.650363	0.213308	0.530910	0.152*
H16B	0.625932	0.093075	0.508055	0.152*
H16C	0.465487	0.155857	0.529352	0.152*

Atomic displacement parameters (Å²) top

	U¹¹	U²²	U³³	U¹²	U¹³	U²³
O1	0.0935 (10)	0.0608 (7)	0.0990 (10)	0.0078 (7)	0.0082 (9)	−0.0177 (7)
N1	0.0658 (9)	0.0681 (9)	0.0649 (10)	−0.0063 (7)	0.0056 (8)	−0.0106 (8)
C6	0.0514 (9)	0.0516 (9)	0.0676 (10)	−0.0051 (7)	−0.0008 (8)	−0.0042 (8)
C5	0.0546 (9)	0.0567 (9)	0.0673 (11)	−0.0019 (7)	−0.0042 (9)	−0.0018 (9)
C7	0.0588 (10)	0.0572 (10)	0.0672 (11)	−0.0014 (8)	0.0001 (9)	−0.0053 (9)
C1	0.0544 (9)	0.0532 (9)	0.0813 (12)	−0.0049 (7)	0.0020 (10)	−0.0063 (10)
C9	0.0585 (10)	0.0731 (12)	0.0582 (10)	−0.0035 (8)	0.0057 (9)	−0.0098 (9)
C4	0.0552 (10)	0.0704 (12)	0.0686 (12)	−0.0072 (8)	−0.0058 (9)	0.0003 (9)
C14	0.0639 (11)	0.0820 (12)	0.0618 (11)	−0.0096 (9)	0.0138 (9)	−0.0186 (10)
C10	0.0748 (12)	0.0757 (12)	0.0667 (12)	−0.0056 (9)	−0.0078 (10)	−0.0093 (9)
C2	0.0638 (11)	0.0548 (10)	0.1032 (15)	−0.0006 (8)	−0.0073 (11)	0.0066 (11)
C3	0.0672 (12)	0.0713 (12)	0.0822 (14)	−0.0090 (10)	−0.0129 (10)	0.0163 (10)
C12	0.0647 (11)	0.0989 (15)	0.0642 (12)	0.0014 (10)	−0.0002 (9)	−0.0072 (10)
C13	0.0672 (12)	0.1049 (16)	0.0593 (11)	−0.0127 (11)	0.0051 (9)	−0.0186 (10)
C11	0.0842 (13)	0.0762 (12)	0.0716 (12)	0.0001 (10)	−0.0075 (11)	−0.0006 (10)
C8	0.0923 (15)	0.1077 (16)	0.0680 (13)	0.0019 (12)	−0.0081 (11)	−0.0041 (11)
C15	0.1220 (19)	0.0904 (15)	0.0785 (13)	−0.0314 (13)	0.0196 (13)	−0.0273 (11)
C16	0.1019 (17)	0.130 (2)	0.0727 (14)	−0.0012 (14)	−0.0154 (12)	0.0056 (13)

Geometric parameters (Å, º) top

O1—C1	1.353 (2)	C10—H10	0.9300
O1—H1	0.8200	C2—C3	1.371 (3)
N1—C7	1.2823 (19)	C2—H2	0.9300
N1—C9	1.421 (2)	C3—H3	0.9300
C6—C5	1.401 (2)	C12—C11	1.387 (3)
C6—C1	1.412 (2)	C12—C13	1.388 (3)
C6—C7	1.447 (2)	C12—C16	1.515 (3)
C5—C4	1.378 (2)	C13—H13	0.9300
C5—H5	0.9300	C11—H11	0.9300
C7—H7	0.9300	C8—H8A	0.9600
C1—C2	1.378 (2)	C8—H8B	0.9600
C9—C10	1.392 (2)	C8—H8C	0.9600
C9—C14	1.400 (2)	C15—H15A	0.9600
C4—C3	1.400 (3)	C15—H15B	0.9600
C4—C8	1.507 (3)	C15—H15C	0.9600
C14—C13	1.384 (3)	C16—H16A	0.9600
C14—C15	1.513 (3)	C16—H16B	0.9600
C10—C11	1.382 (2)	C16—H16C	0.9600

C1—O1—H1	109.5	C2—C3—H3	118.9
C7—N1—C9	120.40 (15)	C4—C3—H3	118.9
C5—C6—C1	118.32 (16)	C11—C12—C13	117.14 (18)
C5—C6—C7	120.23 (15)	C11—C12—C16	121.7 (2)
C1—C6—C7	121.44 (16)	C13—C12—C16	121.16 (18)
C4—C5—C6	122.88 (16)	C14—C13—C12	123.48 (17)
C4—C5—H5	118.6	C14—C13—H13	118.3
C6—C5—H5	118.6	C12—C13—H13	118.3
N1—C7—C6	122.54 (16)	C10—C11—C12	121.27 (19)
N1—C7—H7	118.7	C10—C11—H11	119.4
C6—C7—H7	118.7	C12—C11—H11	119.4
O1—C1—C2	119.28 (16)	C4—C8—H8A	109.5
O1—C1—C6	121.45 (17)	C4—C8—H8B	109.5
C2—C1—C6	119.26 (17)	H8A—C8—H8B	109.5
C10—C9—C14	119.71 (17)	C4—C8—H8C	109.5
C10—C9—N1	122.14 (15)	H8A—C8—H8C	109.5
C14—C9—N1	118.12 (16)	H8B—C8—H8C	109.5
C5—C4—C3	116.66 (17)	C14—C15—H15A	109.5
C5—C4—C8	121.83 (17)	C14—C15—H15B	109.5
C3—C4—C8	121.50 (17)	H15A—C15—H15B	109.5
C13—C14—C9	117.93 (17)	C14—C15—H15C	109.5
C13—C14—C15	121.31 (17)	H15A—C15—H15C	109.5
C9—C14—C15	120.76 (18)	H15B—C15—H15C	109.5
C11—C10—C9	120.43 (17)	C12—C16—H16A	109.5
C11—C10—H10	119.8	C12—C16—H16B	109.5
C9—C10—H10	119.8	H16A—C16—H16B	109.5
C3—C2—C1	120.63 (17)	C12—C16—H16C	109.5
C3—C2—H2	119.7	H16A—C16—H16C	109.5
C1—C2—H2	119.7	H16B—C16—H16C	109.5
C2—C3—C4	122.24 (17)

C1—C6—C5—C4	−0.9 (2)	N1—C9—C14—C15	−0.5 (3)
C7—C6—C5—C4	−179.97 (15)	C14—C9—C10—C11	−1.2 (3)
C9—N1—C7—C6	179.20 (14)	N1—C9—C10—C11	−178.95 (16)
C5—C6—C7—N1	178.78 (14)	O1—C1—C2—C3	178.64 (16)
C1—C6—C7—N1	−0.3 (2)	C6—C1—C2—C3	−0.8 (3)
C5—C6—C1—O1	−178.36 (15)	C1—C2—C3—C4	0.3 (3)
C7—C6—C1—O1	0.7 (2)	C5—C4—C3—C2	−0.1 (3)
C5—C6—C1—C2	1.1 (2)	C8—C4—C3—C2	−179.56 (17)
C7—C6—C1—C2	−179.83 (15)	C9—C14—C13—C12	−2.0 (3)
C7—N1—C9—C10	−38.6 (2)	C15—C14—C13—C12	178.60 (18)
C7—N1—C9—C14	143.67 (16)	C11—C12—C13—C14	0.6 (3)
C6—C5—C4—C3	0.4 (2)	C16—C12—C13—C14	−177.52 (18)
C6—C5—C4—C8	179.87 (15)	C9—C10—C11—C12	−0.3 (3)
C10—C9—C14—C13	2.3 (3)	C13—C12—C11—C10	0.6 (3)
N1—C9—C14—C13	−179.87 (15)	C16—C12—C11—C10	178.71 (19)
C10—C9—C14—C15	−178.33 (17)

Hydrogen-bond geometry (Å, º) top

Cg2 is the centroid of the C9–C14 ring.

D—H···A	D—H	H···A	D···A	D—H···A
O1—H1···N1	0.82	1.89	2.618 (2)	147
C16—H16A···Cg2ⁱ	0.96	2.93 (3)	3.73	143

Symmetry code: (i) x+1/2, −y+1/2, −z.

Acknowledgements

Author contributions are as follows. Conceptualization, SK, ND and ES; synthesis, AG and EA; writing (review and editing of the manuscript) SK, EA and AG; formal analysis, SK and ND; crystal-structure determination, ND; validation, SK, ND and EA; project administration, SK, ND and ES.

Funding information

This study was supported by Ondokuz Mayıs University under Project No. PYO·FEN.1906.19.001.

References

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Volume 77| Part 11| November 2021| Pages 1087-1090

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research communications\(\def\hfill{\hskip 5em}\def\hfil{\hskip 3em}\def\eqno#1{\hfil {#1}}\)

Crystal structure and Hirshfeld surface analysis of (Z)-2-{[(2,4-di­methyl­phen­yl)imino]­meth­yl}-4-methyl­phenol

1. Chemical context

2. Structural commentary

3. Supra­molecular features

4. Database survey

5. Hirshfeld surface analysis

6. Synthesis and crystallization

7. Refinement

Supporting information

Acknowledgements

Funding information

References

research communications

Crystal structure and Hirshfeld surface analysis of (Z)-2-{[(2,4-dimethylphenyl)imino]methyl}-4-methylphenol

3. Supramolecular features