Home The crystal structure of (E)-4-((4-(diethylamino)benzylidene)amino)-N,N-diphenylaniline, C29H29N3
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The crystal structure of (E)-4-((4-(diethylamino)benzylidene)amino)-N,N-diphenylaniline, C29H29N3

  • Yue Liu , Zhou-Hua Yang , Jian-Jun Ni and Zhaod-Di Liu EMAIL logo
Published/Copyright: September 17, 2019

Abstract

C29H29N3, triclinic, P1̄ (no. 2), a = 10.677(4) Å, b = 11.325(4) Å, c = 21.530(8) Å, α = 88.026(5)°, β = 75.646(5)°, γ = 71.504(4)°, V = 2389.0(15) Å3, Z = 4, Rgt(F) = 0.0663, wRref(F2) = 0.2002, T = 293(2) K.

CCDC no.: 1949288

One of two crystallographically independent molecules of the title structure is shown in the figure. 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:Black needle
Size:0.30 × 0.10 × 0.10 mm
Wavelength:Mo Kα radiation (0.71073 Å)
μ:0.07 mm−1
Diffractometer, scan mode:Bruker SMART, φ and ω
θmax, completeness:25.0°, 99%
N(hkl)measured, N(hkl)unique, Rint:17204, 8351, 0.136
Criterion for Iobs, N(hkl)gt:Iobs > 2 σ(Iobs), 4965
N(param)refined:581
Programs:Bruker [1], SHELX [2], [3]
Table 2:

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

AtomxyzUiso*/Ueq
C10.0858(3)1.3253(2)0.23642(11)0.0568(6)
C2−0.0257(3)1.3344(3)0.21327(11)0.0659(7)
H2−0.05511.26540.21310.079*
C3−0.0944(3)1.4449(3)0.19034(12)0.0773(9)
H3−0.16961.45020.17460.093*
C4−0.0520(4)1.5462(3)0.19080(14)0.0889(10)
H4−0.09801.62060.17510.107*
C50.0581(4)1.5388(3)0.21428(17)0.0960(10)
H50.08611.60850.21490.115*
C60.1275(3)1.4289(3)0.23684(14)0.0787(8)
H60.20271.42420.25240.094*
C70.1808(2)1.1991(2)0.31988(10)0.0515(6)
C80.1000(3)1.2881(3)0.36818(12)0.0647(7)
H80.03021.35540.35980.078*
C90.1231(3)1.2769(3)0.42888(13)0.0812(9)
H90.06851.33730.46100.097*
C100.2247(4)1.1787(3)0.44250(15)0.0855(9)
H100.23961.17250.48340.103*
C110.3042(3)1.0897(3)0.39519(15)0.0780(8)
H110.37321.02220.40400.094*
C120.2822(3)1.0996(3)0.33455(12)0.0646(7)
H120.33661.03820.30290.078*
C130.2159(2)1.1067(2)0.21203(11)0.0539(6)
C140.3095(2)1.1167(2)0.15639(12)0.0584(6)
H140.33891.18630.15110.070*
C150.3590(2)1.0232(2)0.10872(12)0.0584(6)
H150.42071.03090.07110.070*
C160.3183(2)0.9183(2)0.11608(11)0.0533(6)
C170.2316(3)0.9060(2)0.17374(12)0.0611(7)
H170.20820.83330.18070.073*
C180.1796(3)0.9999(2)0.22080(12)0.0635(7)
H180.11960.99130.25880.076*
C190.3485(2)0.8595(2)0.01129(12)0.0561(6)
H190.30910.94450.00750.067*
C200.3887(2)0.7798(2)−0.04595(11)0.0544(6)
C210.3597(3)0.8327(2)−0.10230(12)0.0600(6)
H210.31610.9182−0.10180.072*
C220.3930(3)0.7635(2)−0.15826(12)0.0649(7)
H220.37010.8021−0.19450.078*
C230.4610(3)0.6356(2)−0.16165(12)0.0649(7)
C240.4921(3)0.5812(2)−0.10483(13)0.0725(8)
H240.53750.4962−0.10530.087*
C250.4559(3)0.6525(2)−0.04931(12)0.0660(7)
H250.47710.6144−0.01260.079*
C260.4371(4)0.6177(3)−0.27436(14)0.0891(9)
H26A0.42630.5514−0.29770.107*
H26B0.34810.6794−0.25870.107*
C270.5279(4)0.6747(3)−0.31668(17)0.1066(11)
H27A0.53810.7405−0.29340.160*
H27B0.49020.7084−0.35200.160*
H27C0.61530.6131−0.33260.160*
C280.5802(3)0.4315(3)−0.22361(14)0.0821(9)
H28A0.62980.4083−0.26800.098*
H28B0.64600.4178−0.19790.098*
C290.4929(4)0.3554(3)−0.20192(18)0.1034(11)
H29A0.45680.3677−0.15630.155*
H29B0.54480.2692−0.21250.155*
H29C0.41920.3788−0.22260.155*
C300.5116(3)0.2899(3)0.56125(12)0.0624(7)
C310.4147(3)0.3507(3)0.52904(14)0.0909(10)
H310.44040.35830.48490.109*
C320.2801(3)0.4001(4)0.56180(19)0.1088(12)
H320.21550.44150.53970.131*
C330.2403(3)0.3888(3)0.62673(17)0.0936(10)
H330.14900.42240.64860.112*
C340.3340(3)0.3289(3)0.65868(14)0.0791(8)
H340.30710.32120.70270.095*
C350.4707(3)0.2784(3)0.62644(12)0.0694(7)
H350.53460.23680.64890.083*
C360.7548(2)0.2454(3)0.55679(11)0.0572(7)
C370.7520(3)0.3548(3)0.58315(14)0.0804(9)
H370.68080.42760.58240.096*
C380.8554(4)0.3572(4)0.61108(16)0.1030(12)
H380.85320.43160.62900.124*
C390.9607(4)0.2504(5)0.61222(16)0.1033(12)
H391.02940.25180.63130.124*
C400.9640(3)0.1438(4)0.58559(16)0.0923(10)
H401.03590.07140.58600.111*
C410.8631(3)0.1401(3)0.55784(13)0.0747(8)
H410.86760.06530.53940.090*
C420.6871(2)0.1799(3)0.46658(11)0.0573(6)
C430.6324(2)0.0916(3)0.45444(11)0.0613(7)
H430.56860.07120.48720.074*
C440.6700(3)0.0323(3)0.39461(11)0.0604(7)
H440.6326−0.02830.38760.072*
C450.7635(2)0.0626(2)0.34501(10)0.0518(6)
C460.8215(3)0.1485(3)0.35790(12)0.0633(7)
H460.88770.16690.32560.076*
C470.7836(3)0.2079(3)0.41755(12)0.0680(7)
H470.82270.26700.42500.082*
C480.7295(3)−0.0331(2)0.25923(11)0.0539(6)
H480.6425−0.02400.28470.065*
C490.7677(2)−0.0916(2)0.19576(10)0.0501(6)
C500.6774(2)−0.1315(2)0.17253(11)0.0548(6)
H500.5911−0.12150.19900.066*
C510.7104(3)−0.1854(2)0.11165(11)0.0552(6)
H510.6469−0.21180.09820.066*
C520.8389(3)−0.2007(2)0.06994(10)0.0516(6)
C530.9305(3)−0.1596(2)0.09359(11)0.0565(6)
H531.0167−0.16830.06730.068*
C540.8953(2)−0.1069(2)0.15440(11)0.0555(6)
H540.9584−0.08080.16840.067*
C550.7805(3)−0.2984(2)−0.01588(12)0.0671(7)
H55A0.7985−0.2903−0.06200.080*
H55B0.6872−0.24750.00300.080*
C560.7961(3)−0.4314(3)−0.00145(17)0.0946(10)
H56A0.8877−0.4824−0.02100.142*
H56B0.7333−0.4576−0.01820.142*
H56C0.7772−0.43960.04420.142*
C571.0035(3)−0.2605(2)−0.03587(12)0.0679(7)
H57A1.0279−0.3291−0.06700.081*
H57B1.0736−0.2782−0.01240.081*
C580.9995(3)−0.1429(3)−0.07073(13)0.0781(8)
H58A0.9297−0.1245−0.09370.117*
H58B1.0863−0.1537−0.10040.117*
H58C0.9801−0.0754−0.04040.117*
N10.1570(2)1.20921(19)0.25841(9)0.0642(6)
N20.3626(2)0.82293(19)0.06678(10)0.0622(6)
N30.4965(3)0.5650(2)−0.21777(11)0.0933(9)
N40.6504(2)0.2397(2)0.52836(9)0.0714(7)
N50.8085(2)0.0066(2)0.28226(9)0.0588(5)
N60.8730(2)−0.2525(2)0.00897(9)0.0628(6)

Source of material

Reagents and solvents used were of commercially available quality. The ethanol solution of N,N-diphenylbenzene-1,4-diamine (0.26 g, 1 mmol) was added to a solution containing 4-(diethylamino)benzaldehyde (0.18 g, 1 mmol) in 5 mL of absolute ethanol and acetic acid (1 day) under heating and stirring. The mixture was then refluxed for 3 h. Afterwards the mixture was cooled to room temperature. It was pured by ethanol recrystallization in 82% yield as yellow solid. Then the resulting solution had to stand in air. On slow evaporation of the solvent, some black block crystals were obtained after 5 days. 1H NMR (400 MHz, (CD3)2CO) δ [ppm] 8.39 (d, J = 5.0 Hz, 1H), 7.75–7.65 (m, 2H), 7.30–7.22 (m, 4H), 7.20–7.11 (m, 2H), 7.07–6.93 (m, 8H), 6.82–6.69 (m, 2H), 3.46 (q, J = 7.1 Hz, 4H), 1.16 (t, J = 7.0 Hz, 6H). 13C NMR (100 MHz, (CD3)2CO) δ [ppm] 158.47, 150.13, 148.43, 148.07, 144.95, 130.55, 129.34, 125.31, 124.13, 123.64, 122.59, 121.98, 111.01, 44.18, 12.03. MALDI-TOF: ([M + H]+), 516.85. IR (KBr pellet, cm−1): 3447m, 3413s, 1596s, 1586m, 1525m, 1404w, 1317m, 1270m, 1317m, 1174s, 835m, 820m, 745m, 699s, 592m.

Experimental details

All H-atoms were placed in calculated positions and treated as riding: C—H = 0.93–0.97 Å, with Uiso(H) = 1.2 or 1.5 Ueq (parent C-atom).

Comment

Schiff bases bearing a bridged C=N structure have a wide range of applications in detection of metal ions, because they always have weak fluorescence signals for the C=N isomerization, but when the C=N group is coordinated with metal ions to form the complexes, the C=N isomerization is inhibited that results in much stronger fluorescence signals [4], [5], [6]. Among these compounds, the excellent electronic and optical properties of triphenylamine-based probes are studied widely for their butterfly-like structure, low ionization potential, high electron affinity and good UV light harvesting features [6], [7]. As part of an ongoing study concerning the optical properties of Schiff bases [8], the title compound is reported here.

The asymmetric unit of the title structure consists of two independent molecules of title molecule. In both independent molecules, the C=N bond adopts E or trans configurations. These core fragments of the title molecule are almost planar with torsion angles C20–N19–N2–C16 and C49–N48–N5–C45 of 178.7(2)° and −179.9(2)°, respectively, the dihedral angles between the mean planes of the phenyl rings are 55.3(2)° and 151.1(1)°, respectively. Geometric parameters are in general as expected [9].

Acknowledgements

This work was supported by the National Natural Science Foundation of China (no. 21701025), and the Distinguished Young Scholars Program of Higher Education of Anhui Province (No. gxyq2017039) and the Innovation Training Program for the College students (201810371039).

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Received: 2019-07-01
Accepted: 2019-08-30
Published Online: 2019-09-17
Published in Print: 2019-12-18

©2019 Yue Liu et al., published by De Gruyter, Berlin/Boston

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

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  49. Crystal structure of 2-butyl-6-(ethylamino)-1H-benzo[de]isoquinoline-1,3(2H)-dione, C18H20N2O2
  50. Crystal structure of (4-chloro-N-[(2-oxido-5-chlorophenyl)methylidene] benzene-carbohydrazonato-κ3N,O,O′)bis(2-fluorobenzyl)tin(IV), C28H20Cl2F2N2O2Sn
  51. Crystal structure of aqua-chlorido-(4-fluorobenzyl-κC)-(N′-(4-methoxy-2-oxidobenzylidene)-3-hydroxy-2-naphthohydrazidato-κ3N,O,O′)tin(IV), C26H22ClFN2O5Sn
  52. Crystal structure of catena-poly[tri(4-chlorophenyl)-(μ2-hydroxido)tin(IV)] – 2-propanol (1/1), C21H21Cl3O2Sn
  53. Crystal structure of bromido-dimethyl-4-tolyl-(triphenylphosphine oxide)tin(IV), C27H28BrOPSn
  54. Crystal structure of 2-(bis(2-hydroxyethyl)ammonio)ethane-1-sulfonate, C6H15NO5S
  55. Crystal structure of bis[triaqua-(μ2-1,2-di(4-pyridyl)ethylene-κ2N:N′)-(4-sulfonatobenzoato-κ2O,O′)zinc(II)], C13H15NO8SZn
  56. Crystal structure of 2-((2-(3-hydroxy-7-methylene-2,3-dihydro-7H-furo[3,2-g]chromen-2-yl)propan-2-yl)oxy)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol – a marmesin derivative, C20H24O10
  57. Crystal structure of octa(4-chlorobenzyl)-dichlorido-bis(μ2-methanolato)-bis(μ3-oxo)-tetratin(IV), C58H54Cl10O4Sn4
  58. Crystal structure of iodido-triphenyl-(triphenylphosphine oxide)tin(IV), C36H30IOPSn
  59. Crystal structure of dichlorido-bis(4-methylphenyl-κC)-bis(triphenylarsine oxide-κO)tin(IV), C50H44As2Cl2O2Sn
  60. Crystal structure of 4-benzyl-1-oxo-N-phenethyl-1H-[1,4]oxazino [4,3-b]indazole-3-carboxamide, C26H21N3O3
  61. Crystal structure of bis{(N-[(5-chloro-2-oxidophenyl)methylidene]-2-hydroxybenzenecarbohydrazonato)-dioxo-molybdenum(VI)}(μ2-4,4′-bipyridine), C38H26Cl2Mo2N6O10
  62. Crystal structure of dichlorido-octamethyl-bis(μ3-oxido)-bis(μ2-2-(phenylamino)ethanolato-κ2O:O)tetratin(IV), C24H44Cl2N2O4Sn4
  63. The crystal structure of 1-(2-(2-(imidazo[1,5-a]pyridine-4-ium)ethoxy)ethyl)-imidazo[1,5-a]pyridine-4-ium bis(hexafluorophosphate) — acetonitrile (1/1), C18H20ON4F12P2
  64. Crystal structure of cyclo[tetra(μ2-cyanido)-tetracyanido-bis(1,4,7,10-tetraazacyclododecane-κ4N,N′,N′′,N′′′)dinickel(II)dipalladium(II)] hexahydrate, C24H52N16Ni2O6Pd2
  65. Crystal structure of (dimethyl sulfoxide)-dioxido-[2-hydroxy-N′-(4-oxo-4-phenylbutan-2-ylidene)benzohydrazidato κ3N,O,O′]molybdenum(VI), C19H20MoN2O6S
  66. Crystal structure of bis(acetylacetonato-κ2O,O′)-(ethanolamine-κ2N,O)copper(II), C14H25CuNO5
  67. Crystal structure of chlorido-diphenyl-(isopropyl(propyl)carbamodithioato-κ2S,S′)tin(IV), C19H24ClNS2Sn
  68. The crystal structure of bis(imidazole-1-yl)methane monohydrate, C7H10N4O
  69. The crystal structure of bis(4-nitroimidazole-1-1yl)methane, C7H6N6O4
  70. Crystal structure of di(naphthalen-2-yl)sulfane, C20H14S
  71. Crystal structure of 3-acetyl-6-bromo-4-hydroxy-2H-chromen-2-one, C11H7BrO4
  72. Crystal structure of N′2,N′6-bis((E)-1-(pyrazin-2-yl)ethylidene)pyridine-2,6-dicarbohydrazide — methanol (1/2), C21H25N9O4
  73. The crystal structure of 3-nitro-4-(p-tolylamino)-2H-chromen-2-one, C16H12N2O4
  74. The crystal structure of 1,2-bis((4-methoxyphenyl)ethynyl)benzene, C24H18O2
  75. Crystal structure of a low-temperature (100 K) polymorph of catena-poly[(μ2-4,4′-bipyridine-κ2N,N′)-bis(O,O′-diethyldithiophosphato-κ1S)zinc(II)], C18H28N2O4P2S4Zn
  76. The pseudosymmetric low temperature polymorph of catena-poly[(μ2-4,4′-bipyridyl-κN,N′)-bis(O,O′-diethyldithiophosphato-κS)-cadmium(II)], {C18H28CdN2O4P2S4}n
  77. Crystal structure of 3-iodophthalic acid, C8H5IO4
  78. The crystal structure of tert-butyl (tert-butoxy(oxo)methyl)(5-bromo-2-fluorophenyl)carbamate, C16H21BrFNO4
  79. The crystal structure of bis(μ2-5,7-dichloroquinolin-8-olato-κ3N,O:O)-tetrakis(5,7-dichloroquinolin-8-olato-κ2N,O)bis(methanol-κ1O)dieuropium(III) — toluene (1/1), C63H39Cl12Eu2N6O8
  80. Crystal structure of dichlorido-(N′-(1-(3-ethylpyrazin-2-yl)ethylidene)-4-methoxybenzohydrazide-κ3N,N′,O)cadmium(II), C16H18N4O2Cl2Cd
  81. A redetermination of the crystal structure of catena-poly[(bis(O,O′-isopropyl dithiophosphato-κ2S,S′)-(μ2-1,2-bis(3-pyridylmethylene)hydrazine-κ2N,N′)cadmium(II)], {C24H38CdN4O4P2S4}n
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