Home Synthesis and crystal structure of (E)-1-(4-(((E)-3-(tert-butyl)-2-hydroxybenzylidene)amino)phenyl)ethan-1-one O-ethyl oxime, C21H26N2O2
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Synthesis and crystal structure of (E)-1-(4-(((E)-3-(tert-butyl)-2-hydroxybenzylidene)amino)phenyl)ethan-1-one O-ethyl oxime, C21H26N2O2

  • Ji-Xing Zhao ORCID logo EMAIL logo , Da-Qun Chen and Lei-Fang Wu
Published/Copyright: May 31, 2022

Abstract

C21H26N2O2, monoclinic, P21 (no. 4), a = 7.1425(7) Å, b = 9.2733(8) Å, c = 14.3161(13) Å, β = 93.592(4)°, V = 946.36(15) Å3, Z = 2, Rgt (F) = 0.0461, wRref (F 2) = 0.1148, T = 173(2) K.

CCDC no.: 2170731

Table 1 contains crystallographic data and Table 2 contains the list of the atoms including atomic coordinates and displacement parameters.

Table 1:

Data collection and handling.

Crystal: Plate, yellow
Size: 0.27 × 0.25 × 0.06 mm
Wavelength: Mo Kα radiation (0.71073 Å)
μ: 0.08 mm−1
Diffractometer, scan mode: Bruker D8 venture, φ and ω-scans
θ max, completeness: 27.9°, >99%
N(hkl)measured, N(hkl)unique, R int: 15067, 4486, 0.067
Criterion for I obs, N(hkl)gt: I obs > 2 σ(I obs), 3423
N(param)refined: 232
Programs: Bruker programs [1], SHELX [2], OLEX2 [3]
Table 2:

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

x y z U iso*/U eq
O1 −0.0353 (3) 0.5348 (2) 0.22264 (13) 0.0391 (5)
H1 0.025487 0.529506 0.274695 0.059*
N1 0.0338 (3) 0.4763 (2) 0.39732 (15) 0.0350 (5)
C1 −0.2662 (4) 0.4364 (3) 0.31892 (18) 0.0311 (5)
O2 0.9063 (3) 0.4935 (2) 0.74170 (13) 0.0410 (5)
N2 0.7603 (3) 0.5106 (3) 0.67280 (16) 0.0395 (6)
C2 −0.2126 (4) 0.4882 (3) 0.23149 (18) 0.0303 (5)
C3 −0.3403 (4) 0.4909 (3) 0.15240 (19) 0.0316 (6)
C4 −0.5195 (4) 0.4379 (3) 0.1643 (2) 0.0384 (6)
H4 −0.608369 0.437851 0.112034 0.046*
C7 −0.2810 (4) 0.5464 (3) 0.05724 (19) 0.0386 (6)
C6 −0.4486 (4) 0.3846 (3) 0.3263 (2) 0.0378 (6)
H6 −0.485682 0.349011 0.384577 0.045*
C5 −0.5743 (4) 0.3848 (3) 0.2497 (2) 0.0426 (7)
H5 −0.697889 0.349021 0.254794 0.051*
C8 −0.4479 (5) 0.5504 (4) −0.0160 (2) 0.0541 (9)
H8A −0.406212 0.588232 −0.075168 0.081*
H8B −0.546358 0.612942 0.006301 0.081*
H8C −0.497521 0.452717 −0.025835 0.081*
C9 −0.2055 (5) 0.7008 (4) 0.0657 (2) 0.0531 (8)
H9A −0.179243 0.736848 0.003538 0.080*
H9B −0.089795 0.701546 0.106281 0.080*
H9C −0.299236 0.762744 0.092765 0.080*
C10 −0.1324 (5) 0.4454 (4) 0.0212 (2) 0.0525 (8)
H10A −0.099111 0.477382 −0.040848 0.079*
H10B −0.182307 0.347051 0.016990 0.079*
H10C −0.020449 0.447125 0.064459 0.079*
C11 −0.1353 (4) 0.4311 (3) 0.40019 (18) 0.0340 (6)
H11 −0.175716 0.393032 0.457150 0.041*
C12 0.1696 (4) 0.4600 (3) 0.47326 (17) 0.0320 (6)
C13 0.1791 (4) 0.3419 (3) 0.53270 (19) 0.0390 (7)
H13 0.084394 0.269874 0.527131 0.047*
C14 0.3259 (4) 0.3281 (3) 0.60030 (19) 0.0378 (6)
H14 0.329210 0.247092 0.641016 0.045*
C15 0.4686 (4) 0.4304 (3) 0.60972 (17) 0.0303 (5)
C16 0.4563 (4) 0.5499 (3) 0.54949 (17) 0.0335 (6)
H16 0.550199 0.622488 0.554866 0.040*
C17 0.3101 (4) 0.5634 (3) 0.48277 (18) 0.0349 (6)
H17 0.305259 0.644950 0.442505 0.042*
C18 0.6306 (4) 0.4159 (3) 0.67996 (18) 0.0319 (6)
C19 0.6369 (4) 0.2995 (3) 0.75214 (19) 0.0427 (7)
H19A 0.566277 0.215654 0.727652 0.064*
H19B 0.581134 0.334833 0.808626 0.064*
H19C 0.767611 0.271685 0.767538 0.064*
C20 1.0450 (4) 0.6024 (3) 0.7285 (2) 0.0403 (7)
H20A 0.988715 0.699527 0.733019 0.048*
H20B 1.095478 0.592274 0.666028 0.048*
C21 1.1987 (4) 0.5828 (3) 0.8037 (2) 0.0452 (7)
H21A 1.250590 0.485318 0.799812 0.068*
H21B 1.147964 0.596494 0.865150 0.068*
H21C 1.297892 0.653770 0.795363 0.068*

Source of material

The title compound was prepared by a method reported earlier [4, 5]. 3-tert–Butyl-2-hydroxy-benzaldehyde (178.23 mg, 1 mmol) dissolved in ethanol solution (5 mL) was added to 1-(4-aminophenyl)ethanone O-ethyl-oxime (178.21 mg, 1 mmol) dissolved in ethanol (5 mL) at 325 K. The mixture was kept stirring for 6 h. The mixture was cooled to room temperature and filtered. The filtrate was recrystallized and several clear yellow crystals were obtained.

Experimental details

Hydrogen atoms were placed in their geometrically idealized positions and constrained to ride on their parent atoms.

Comment

Schiff base compounds are an important class of ligands in coordination chemistry. Schiff base transition metal complexes are attractive because of their show effective applications in various fields of scientific research. For example, these metal complexes are widely applied in ion recognition [67] luminescence materials [8, 9] and supramolecular constructing [1011]. Recently, we have also investigated the title compound synthesis, structural characterization, and we predict that this compound can form stable complexes with transition metals [12].

The crystal structure of the title compound is shown in the figure. Compared with reported similar structures, all bond lengths and bond angles are within the normal ranges [4, 5, 13]. In the title compound, there is a strong intramolecular O1—H1···N1 hydrogen bond interaction (d(N1···H1) = 1.821 Å, d(O1—H1) = 0.840 Å and d(O1···N1) = 2.576 Å).


Corresponding author: Ji-Xing Zhao, Analysis and Testing Center, Shihezi University, Xinjiang 832003 , P. R. China, E-mail:

Funding source: Open Project Program of Shihezi University

Award Identifier / Grant number: KX000203

  1. Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.

  2. Research funding: This project was supported by the Open Project Program of Shihezi University (KX000203).

  3. Conflict of interest statement: The authors declare no conflicts of interest regarding this article.

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Received: 2022-03-19
Accepted: 2022-05-05
Published Online: 2022-05-31
Published in Print: 2022-08-26

© 2022 Ji-Xing Zhao et al., published by De Gruyter, Berlin/Boston

This work is licensed under the Creative Commons Attribution 4.0 International License.

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  75. The crystal structure of 4-(chloromethyl)benzonitrile, C8H6ClN
  76. The crystal structure of dimethylammonium 8-[(7,9-dioxo-6,10-dioxaspiro[4.5]decan-8-ylidene)methyl]-9-oxo-6,10-dioxaspiro[4.5]dec-7-en-7-olate, C19H25NO8
  77. Crystal structure of (2R,3S,4S,5R,6S)-2-(acetoxymethyl)-6-((1-acetyl-5-bromo-4-chloro-1H-indol-3-yl)oxy)tetrahydro-2H-pyran-3,4,5-triyl triacetate hemihydrate C24H25BrClNO11
  78. The crystal structure of the co-crystal tetrakis[2-(tris(4-methoxyphenyl)stannyl)ethyl]silane – tetrahydrofuran – toluene – tetrahydrofurane (1/1/1), C103H116O13SiSn4
  79. Crystal structure of methyl 3-(1,3-dioxo-1H-benzo[de]isoquinolin-2(3H)-yl)propanoate, C16H13NO4
  80. Crystal structure of ethyl (Z)-3-amino-2-cyano-3-(2-oxo-2H-chromen-3-yl)acrylate, C15H12N2O4
  81. Crystal structure of methyl 2-(1,3-dioxo-1H-benzo[de]isoquinolin-2(3H)-yl)acetate, C15H11NO4
  82. Crystal structure of catena-poly[diaqua-bis(μ2-1,3-di(1H-imidazol-1-yl)propane-κ2N:N′)cobalt(II)] tetrafluoroterephthalate, C26H28N8O6F4Co
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