6,7-Di­chloro-2-methyl-3-phenyl­quinoxaline

Myron W Jones; Katelyn M Aldridge; Guy Crundwell

doi:10.1107/S2414314626008928

. 2026 Sep 3;11(Pt 9):x260892. doi: 10.1107/S2414314626008928

6,7-Dichloro-2-methyl-3-phenylquinoxaline

Myron W Jones ^a, Katelyn M Aldridge ^b, Guy Crundwell ^b,^*

Editor: M Zeller^c

PMCID: PMC13640444 PMID: 42840957

The title compound was synthesized using the acid catalyst NH₄HF₂ in a water/methanol solution. The extended structure features offset stacked quinoxalines along the [100] direction.

Keywords: crystal structure, quinoxaline

Abstract

The title compound, C₁₅H₁₀Cl₂N₂, was synthesized using the acid catalyst NH₄HF₂ in a water/methanol solution. The dihedral angle between the phenyl ring and the quinoxaline unit is 39.80 (5)°. There is an intermolecular hydrogen-bonding-like interaction with a neighboring chlorine atom at a distance of 2.76 Å. The extended structure features offset-stacked quinoxaline units along the [100] direction. graphic file with name x-11-x260892-scheme1-3D1.webp

Structure description

In general, quinoxalines are of interest as potential antibacterial (Parhi et al., 2013 ▸), antimicrobial (Singh et al., 2010 ▸), and antifungal medicines (Tang et al., 2022 ▸) and therefore exploring their synthesis and structures are of interest. The title compound was synthesized via a condensation reaction of a diamine and diketone using a water/methanol solution containing the NH₄HF₂ catalyst (Lassagne et al., 2015 ▸).

The molecular structure is shown in Fig. 1 ▸. The quinoxaline ring system is essentially planar. The r.m.s. deviation of the dichloroquinoxaline unit (using atoms C1–C9, N1, N2, Cl1, and Cl2) is only 0.0604 Å. The quinoxaline moiety makes an angle of 39.80 (5)° with respect to the phenyl ring. There is a hydrogen-bonding-like interaction between a carbon hydrogen and a neighboring chlorine atom (Table 1 ▸). Molecules stack along the [100] direction of the unit cell (Fig. 2 ▸). Analysis of ring interactions using PLATON (Spek, 2009 ▸) indicats that the quinoxaline ring system (C1–C6,C8,C9,N1,N2) exhibits π⋯π stacking with interplanar spacings of 3.5039 (7) Å [for neighbor at (1 − x, −y, z)], 3.4022 (7) Å [for neighbor at ( Inline graphic − x, y, − + z)], and 3.3845 (7) Å [for neighbor at ( − x, y, 1/2 + z)] with slippages of 1.515, 3.582, and 3.565Å, respectively..

A view of the title molecule. Hydrogen atoms are omitted and displacement ellipsoids are drawn at the 50% probability level.

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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
C2—H2⋯Cl2ⁱ	0.95	2.76	3.704 (3)	175

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Symmetry code: (i) Inline graphic .

A view of the unit-cell packing along the [100] direction.

Synthesis and crystallization

In a 50 mL Erlenmeyer flask, 1.49 g of 1-phenyl-1,2-propanedione (10.0 mmol) were added to 2 mL of H₂O and 20 mL of a 2.5 x 10⁻³M methanol solution of NH₄HF₂ (Lassagne et al., 2015 ▸). To this mixture 1.78 g of 4,5-dichloro-1,2-phenylenediamine (10.0 mmol) were added. The solution was stirred for 24 h during which the product precipitated as a pale light-tan product. 2.65 g of crude product were isolated and recrysallized from methanol solution yielding 1.92 g of purified product (66%). Crystals for the diffraction study were isolated by the slow evaporation of 50/50 hexane/ethyl acetate solutions. M.p: 426 K; ¹H NMR (CDCl₃, 300 MHz): δ = 2.78 (s, 3H), 7.55 (m, 3H), 7.64 (m, 2H), 8.17 (s, 1H), 8.22 (s, 1H); ¹³C NMR (CDCl₃, 300 MHz): δ = 24.51, 128.85, 128.91, 129.16, 129.43, 129.84, 133.65, 134.12, 138.31, 139.77, 139.86, 153.98, 155.89.

Refinement

Crystal data, data collection and structure refinement details are summarized in Table 2 ▸.

Table 2. Experimental details.

Crystal data
Chemical formula	C₁₅H₁₀Cl₂N₂
M _r	289.15
Crystal system, space group	Orthorhombic, Aea2
Temperature (K)	150
a, b, c (Å)	13.7569 (4), 26.2508 (8), 7.1470 (2)
V (Å³)	2580.99 (13)
Z	8
Radiation type	Cu Kα
μ (mm⁻¹)	4.40
Crystal size (mm)	0.21 × 0.11 × 0.06

Data collection
Diffractometer	Bruker AXS D8 Quest
Absorption correction	Multi-scan (SADABS; Krause et al., 2015 ▸)
T_min, T_max	0.500, 0.754
No. of measured, independent and observed [I > 2σ(I)] reflections	35150, 2788, 2646
R _int	0.064
(sin θ/λ)_max (Å⁻¹)	0.640

Refinement
R[F² > 2σ(F²)], wR(F²), S	0.029, 0.078, 1.11
No. of reflections	2788
No. of parameters	173
No. of restraints	1
H-atom treatment	H-atom parameters constrained
Δρ_max, Δρ_min (e Å⁻³)	0.23, −0.28
Absolute structure	Flack x determined using 1146 quotients [(I⁺)−(I⁻)]/[(I⁺)+(I⁻)] (Parsons et al., 2013 ▸)
Absolute structure parameter	0.004 (7)

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Computer programs: APEX6 and SAINT (Bruker, 2026 ▸), SHELXT (Sheldrick, 2015a ▸), SHELXL2025/1 (Sheldrick, 2015b ▸), OLEX2 (Dolomanov et al., 2009 ▸), ORTEP-3 for Windows (Farrugia, 2012 ▸) and Mercury (Macrae et al., 2020 ▸).

Supplementary Material

Crystal structure: contains datablock(s) I. DOI: 10.1107/S2414314626008928/zl4103sup1.cif

x-11-x260892-sup1.cif^{(1MB, cif)}

Structure factors: contains datablock(s) I. DOI: 10.1107/S2414314626008928/zl4103Isup2.hkl

x-11-x260892-Isup2.hkl^{(223.4KB, hkl)}

x-11-x260892-Isup3.cml^{(4.9KB, cml)}

Supporting information file. DOI: 10.1107/S2414314626008928/zl4103Isup3.cml

CCDC reference: 2583897

Additional supporting information: crystallographic information; 3D view; checkCIF report

Acknowledgments

This work was supported by a CCSU-AAUP grant. All data were collected at Purdue University by Dr Matthias Zeller as part of the American Crystallographic Association Summer Course (2026). Dr Zeller also assisted with the refinement.

full crystallographic data

6,7-Dichloro-2-methyl-3-phenylquinoxaline. Crystal data

C₁₅H₁₀Cl₂N₂	D_x = 1.488 Mg m⁻³
M_r = 289.15	Melting point: 426 K
Orthorhombic, Aea2	Cu Kα radiation, λ = 1.54178 Å
a = 13.7569 (4) Å	Cell parameters from 9889 reflections
b = 26.2508 (8) Å	θ = 3.4–80.1°
c = 7.1470 (2) Å	µ = 4.40 mm⁻¹
V = 2580.99 (13) Å³	T = 150 K
Z = 8	Plate, clear colourless
F(000) = 1184	0.21 × 0.11 × 0.06 mm

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6,7-Dichloro-2-methyl-3-phenylquinoxaline. Data collection

Bruker AXS D8 Quest diffractometer	2788 independent reflections
Radiation source: I-mu-S 3.0 microsource X-ray tube	2646 reflections with I > 2σ(I)
HELIOS multilayer Montel optics monochromator	R_int = 0.064
Detector resolution: 7.4074 pixels mm^-1	θ_max = 80.6°, θ_min = 3.4°
ω and phi scans	h = −17→17
Absorption correction: multi-scan (SADABS; Krause et al., 2015)	k = −33→33
T_min = 0.500, T_max = 0.754	l = −8→9
35150 measured reflections

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6,7-Dichloro-2-methyl-3-phenylquinoxaline. Refinement

Refinement on F²	Secondary atom site location: difference Fourier map
Least-squares matrix: full	Hydrogen site location: inferred from neighbouring sites
R[F² > 2σ(F²)] = 0.029	H-atom parameters constrained
wR(F²) = 0.078	w = 1/[σ²(F_o²) + (0.0438P)² + 0.4866P] where P = (F_o² + 2F_c²)/3
S = 1.11	(Δ/σ)_max = 0.001
2788 reflections	Δρ_max = 0.23 e Å⁻³
173 parameters	Δρ_min = −0.28 e Å⁻³
1 restraint	Absolute structure: Flack x determined using 1146 quotients [(I⁺)-(I^-)]/[(I⁺)+(I^-)] (Parsons et al., 2013)
Primary atom site location: dual	Absolute structure parameter: 0.004 (7)

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6,7-Dichloro-2-methyl-3-phenylquinoxaline. Special details

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.

Refinement. Hydrogen atoms on sp² and sp³ carbons were placed at calculated positions with a C-H distance of 0.95 Å and 0.98 Å and were included in the refinement in riding motion approximation with U_iso = 1.2U_eq or 1.5U_eq of the carrier atom, respectively.

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6,7-Dichloro-2-methyl-3-phenylquinoxaline. Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å²)

	x	y	z	U_iso*/U_eq
C1	0.37186 (15)	0.47901 (10)	0.6000 (4)	0.0262 (5)
C3	0.37034 (16)	0.56404 (10)	0.4771 (4)	0.0284 (5)
C10	0.37433 (14)	0.32221 (9)	0.4945 (4)	0.0242 (5)
C15	0.42966 (17)	0.30390 (9)	0.3437 (3)	0.0258 (5)
H15	0.466810	0.327048	0.270755	0.031*
N1	0.37599 (15)	0.44750 (9)	0.7518 (3)	0.0280 (5)
Cl1	0.36731 (4)	0.62940 (2)	0.51359 (11)	0.03628 (18)
C13	0.37601 (17)	0.21837 (10)	0.4054 (4)	0.0303 (5)
H13	0.377408	0.183049	0.376637	0.036*
C6	0.37267 (16)	0.45912 (9)	0.4161 (4)	0.0242 (5)
C12	0.31946 (17)	0.23595 (9)	0.5524 (3)	0.0306 (5)
H12	0.281249	0.212716	0.622943	0.037*
Cl2	0.37977 (5)	0.58627 (2)	0.10644 (10)	0.03599 (18)
C4	0.37379 (16)	0.54433 (10)	0.2935 (4)	0.0275 (5)
C5	0.37397 (16)	0.49310 (10)	0.2613 (4)	0.0267 (5)
H5	0.374956	0.480307	0.136961	0.032*
C8	0.37819 (16)	0.39822 (10)	0.7220 (4)	0.0250 (5)
C14	0.43071 (17)	0.25251 (10)	0.3002 (4)	0.0291 (5)
H14	0.468808	0.240553	0.198416	0.035*
N2	0.37302 (13)	0.40786 (8)	0.3852 (3)	0.0259 (5)
C2	0.36965 (16)	0.53235 (11)	0.6280 (4)	0.0294 (5)
H2	0.367700	0.545967	0.751059	0.035*
C9	0.37394 (14)	0.37773 (10)	0.5335 (4)	0.0232 (5)
C11	0.31853 (16)	0.28751 (8)	0.5968 (4)	0.0276 (4)
H11	0.279563	0.299277	0.697663	0.033*
C7	0.38880 (19)	0.36530 (10)	0.8927 (4)	0.0299 (5)
H7A	0.325163	0.351482	0.927622	0.045*
H7B	0.414578	0.385727	0.996143	0.045*
H7C	0.433567	0.337216	0.865550	0.045*

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6,7-Dichloro-2-methyl-3-phenylquinoxaline. Atomic displacement parameters (Å²)

	U¹¹	U²²	U³³	U¹²	U¹³	U²³
C1	0.0260 (11)	0.0266 (13)	0.0260 (11)	0.0011 (8)	0.0006 (10)	−0.0021 (11)
C3	0.0277 (11)	0.0226 (13)	0.0350 (14)	−0.0003 (8)	0.0032 (9)	−0.0036 (10)
C10	0.0257 (10)	0.0242 (11)	0.0228 (12)	0.0017 (7)	−0.0034 (8)	−0.0012 (10)
C15	0.0287 (10)	0.0266 (11)	0.0221 (10)	0.0002 (9)	−0.0007 (8)	0.0006 (8)
N1	0.0320 (10)	0.0285 (11)	0.0235 (10)	0.0005 (8)	0.0006 (7)	−0.0029 (9)
Cl1	0.0454 (3)	0.0214 (3)	0.0421 (4)	−0.0014 (2)	0.0073 (3)	−0.0051 (2)
C13	0.0405 (13)	0.0215 (13)	0.0289 (13)	0.0001 (9)	−0.0036 (11)	−0.0014 (10)
C6	0.0256 (11)	0.0218 (12)	0.0252 (11)	0.0012 (8)	−0.0003 (8)	−0.0007 (10)
C12	0.0354 (12)	0.0287 (12)	0.0278 (13)	−0.0049 (9)	0.0008 (8)	0.0018 (8)
Cl2	0.0506 (3)	0.0257 (3)	0.0316 (3)	−0.0025 (2)	−0.0014 (3)	0.0041 (2)
C4	0.0281 (11)	0.0266 (13)	0.0278 (13)	−0.0002 (9)	−0.0006 (9)	0.0014 (10)
C5	0.0303 (12)	0.0256 (12)	0.0241 (13)	−0.0006 (9)	−0.0005 (8)	0.0000 (10)
C8	0.0249 (11)	0.0268 (12)	0.0234 (12)	0.0001 (8)	0.0003 (8)	−0.0026 (10)
C14	0.0332 (11)	0.0294 (11)	0.0246 (10)	0.0028 (10)	0.0008 (9)	−0.0028 (9)
N2	0.0281 (10)	0.0256 (12)	0.0240 (11)	0.0018 (7)	−0.0002 (8)	−0.0016 (8)
C2	0.0346 (12)	0.0270 (13)	0.0267 (14)	0.0006 (8)	0.0027 (9)	−0.0056 (10)
C9	0.0225 (9)	0.0252 (12)	0.0220 (11)	0.0005 (7)	0.0005 (8)	0.0001 (9)
C11	0.0292 (10)	0.0281 (11)	0.0257 (10)	0.0000 (8)	0.0019 (9)	−0.0018 (9)
C7	0.0374 (12)	0.0296 (14)	0.0226 (12)	0.0005 (10)	−0.0029 (10)	−0.0008 (10)

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6,7-Dichloro-2-methyl-3-phenylquinoxaline. Geometric parameters (Å, º)

C1—N1	1.365 (4)	C6—N2	1.364 (3)
C1—C6	1.415 (4)	C12—H12	0.9500
C1—C2	1.415 (4)	C12—C11	1.390 (3)
C3—Cl1	1.736 (3)	Cl2—C4	1.734 (3)
C3—C4	1.411 (4)	C4—C5	1.364 (4)
C3—C2	1.362 (4)	C5—H5	0.9500
C10—C15	1.404 (3)	C8—C9	1.451 (4)
C10—C9	1.484 (3)	C8—C7	1.502 (4)
C10—C11	1.397 (3)	C14—H14	0.9500
C15—H15	0.9500	N2—C9	1.323 (4)
C15—C14	1.385 (3)	C2—H2	0.9500
N1—C8	1.311 (3)	C11—H11	0.9500
C13—H13	0.9500	C7—H7A	0.9800
C13—C12	1.386 (4)	C7—H7B	0.9800
C13—C14	1.391 (4)	C7—H7C	0.9800
C6—C5	1.421 (3)

N1—C1—C6	121.0 (2)	C6—C5—H5	120.4
N1—C1—C2	119.2 (3)	C4—C5—C6	119.2 (2)
C6—C1—C2	119.8 (3)	C4—C5—H5	120.4
C4—C3—Cl1	120.2 (2)	N1—C8—C9	121.0 (2)
C2—C3—Cl1	119.0 (2)	N1—C8—C7	116.0 (2)
C2—C3—C4	120.8 (2)	C9—C8—C7	123.0 (2)
C15—C10—C9	118.8 (2)	C15—C14—C13	120.0 (2)
C11—C10—C15	118.4 (2)	C15—C14—H14	120.0
C11—C10—C9	122.7 (2)	C13—C14—H14	120.0
C10—C15—H15	119.6	C9—N2—C6	117.4 (2)
C14—C15—C10	120.8 (2)	C1—C2—H2	120.2
C14—C15—H15	119.6	C3—C2—C1	119.5 (2)
C8—N1—C1	118.0 (2)	C3—C2—H2	120.2
C12—C13—H13	120.0	C8—C9—C10	122.6 (2)
C12—C13—C14	119.9 (2)	N2—C9—C10	115.9 (2)
C14—C13—H13	120.0	N2—C9—C8	121.5 (2)
C1—C6—C5	119.5 (2)	C10—C11—H11	119.7
N2—C6—C1	121.0 (2)	C12—C11—C10	120.7 (2)
N2—C6—C5	119.6 (2)	C12—C11—H11	119.7
C13—C12—H12	119.9	C8—C7—H7A	109.5
C13—C12—C11	120.1 (2)	C8—C7—H7B	109.5
C11—C12—H12	119.9	C8—C7—H7C	109.5
C3—C4—Cl2	119.1 (2)	H7A—C7—H7B	109.5
C5—C4—C3	121.2 (2)	H7A—C7—H7C	109.5
C5—C4—Cl2	119.7 (2)	H7B—C7—H7C	109.5

C1—N1—C8—C9	−1.5 (3)	C6—N2—C9—C10	−179.98 (18)
C1—N1—C8—C7	176.4 (2)	C6—N2—C9—C8	−2.3 (3)
C1—C6—C5—C4	−0.4 (3)	C12—C13—C14—C15	0.8 (4)
C1—C6—N2—C9	−0.9 (3)	Cl2—C4—C5—C6	177.70 (17)
C3—C4—C5—C6	−1.3 (3)	C4—C3—C2—C1	−0.4 (4)
C10—C15—C14—C13	0.5 (3)	C5—C6—N2—C9	178.54 (19)
C15—C10—C9—C8	−139.0 (2)	C14—C13—C12—C11	−1.1 (4)
C15—C10—C9—N2	38.6 (3)	N2—C6—C5—C4	−179.9 (2)
C15—C10—C11—C12	1.3 (3)	C2—C1—N1—C8	−179.85 (19)
N1—C1—C6—C5	−176.4 (2)	C2—C1—C6—C5	1.7 (3)
N1—C1—C6—N2	3.1 (3)	C2—C1—C6—N2	−178.80 (19)
N1—C1—C2—C3	176.8 (2)	C2—C3—C4—Cl2	−177.28 (18)
N1—C8—C9—C10	−178.79 (18)	C2—C3—C4—C5	1.7 (4)
N1—C8—C9—N2	3.7 (3)	C9—C10—C15—C14	−178.8 (2)
Cl1—C3—C4—Cl2	2.5 (3)	C9—C10—C11—C12	178.5 (2)
Cl1—C3—C4—C5	−178.48 (17)	C11—C10—C15—C14	−1.5 (3)
Cl1—C3—C2—C1	179.85 (16)	C11—C10—C9—C8	43.8 (3)
C13—C12—C11—C10	0.0 (4)	C11—C10—C9—N2	−138.6 (2)
C6—C1—N1—C8	−1.7 (3)	C7—C8—C9—C10	3.4 (3)
C6—C1—C2—C3	−1.3 (3)	C7—C8—C9—N2	−174.1 (2)

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6,7-Dichloro-2-methyl-3-phenylquinoxaline. Hydrogen-bond geometry (Å, º)

D—H···A	D—H	H···A	D···A	D—H···A
C2—H2···Cl2ⁱ	0.95	2.76	3.704 (3)	175

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Symmetry code: (i) x, y, z+1.

References

Bruker (2026). APEX6 and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA.
Dolomanov, O. V., Bourhis, L. J., Gildea, R. J., Howard, J. A. K. & Puschmann, H. (2009). J. Appl. Cryst.42, 339–341.
Farrugia, L. J. (2012). J. Appl. Cryst.45, 849–854.
Krause, L., Herbst-Irmer, R., Sheldrick, G. M. & Stalke, D. (2015). J. Appl. Cryst.48, 3–10. [DOI] [PMC free article] [PubMed]
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Macrae, C. F., Sovago, I., Cottrell, S. J., Galek, P. T. A., McCabe, P., Pidcock, E., Platings, M., Shields, G. P., Stevens, J. S., Towler, M. & Wood, P. A. (2020). J. Appl. Cryst.53, 226–235. [DOI] [PMC free article] [PubMed]
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Sheldrick, G. M. (2015b). Acta Cryst. C71, 3–8.
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Associated Data

This section collects any data citations, data availability statements, or supplementary materials included in this article.

Supplementary Materials

Crystal structure: contains datablock(s) I. DOI: 10.1107/S2414314626008928/zl4103sup1.cif

x-11-x260892-sup1.cif^{(1MB, cif)}

Structure factors: contains datablock(s) I. DOI: 10.1107/S2414314626008928/zl4103Isup2.hkl

x-11-x260892-Isup2.hkl^{(223.4KB, hkl)}

x-11-x260892-Isup3.cml^{(4.9KB, cml)}

Supporting information file. DOI: 10.1107/S2414314626008928/zl4103Isup3.cml

CCDC reference: 2583897

Additional supporting information: crystallographic information; 3D view; checkCIF report

[bb1] Bruker (2026). APEX6 and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA.

[bb2] Dolomanov, O. V., Bourhis, L. J., Gildea, R. J., Howard, J. A. K. & Puschmann, H. (2009). J. Appl. Cryst.42, 339–341.

[bb3] Farrugia, L. J. (2012). J. Appl. Cryst.45, 849–854.

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PERMALINK

6,7-Dichloro-2-methyl-3-phenylquinoxaline

Myron W Jones

Katelyn M Aldridge

Guy Crundwell

Roles

Abstract

Structure description

Figure 1.

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

Figure 2.

Synthesis and crystallization

Refinement

Table 2. Experimental details.

Supplementary Material

Acknowledgments

full crystallographic data

6,7-Dichloro-2-methyl-3-phenylquinoxaline. Crystal data

6,7-Dichloro-2-methyl-3-phenylquinoxaline. Data collection

6,7-Dichloro-2-methyl-3-phenylquinoxaline. Refinement

6,7-Dichloro-2-methyl-3-phenylquinoxaline. Special details

6,7-Dichloro-2-methyl-3-phenylquinoxaline. Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å²)

6,7-Dichloro-2-methyl-3-phenylquinoxaline. Atomic displacement parameters (Å²)

6,7-Dichloro-2-methyl-3-phenylquinoxaline. Geometric parameters (Å, º)

6,7-Dichloro-2-methyl-3-phenylquinoxaline. Hydrogen-bond geometry (Å, º)

References

Associated Data

Supplementary Materials

ACTIONS

PERMALINK

RESOURCES

Cite

Add to Collections

PERMALINK

6,7-Di­chloro-2-methyl-3-phenyl­quinoxaline

Myron W Jones

Katelyn M Aldridge

Guy Crundwell

Roles

Abstract

Structure description

Figure 1.

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

Figure 2.

Synthesis and crystallization

Refinement

Table 2. Experimental details.

Supplementary Material

Acknowledgments

full crystallographic data

6,7-Dichloro-2-methyl-3-phenylquinoxaline. Crystal data

6,7-Dichloro-2-methyl-3-phenylquinoxaline. Data collection

6,7-Dichloro-2-methyl-3-phenylquinoxaline. Refinement

6,7-Dichloro-2-methyl-3-phenylquinoxaline. Special details

6,7-Dichloro-2-methyl-3-phenylquinoxaline. Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2)

6,7-Dichloro-2-methyl-3-phenylquinoxaline. Atomic displacement parameters (Å2)

6,7-Dichloro-2-methyl-3-phenylquinoxaline. Geometric parameters (Å, º)

6,7-Dichloro-2-methyl-3-phenylquinoxaline. Hydrogen-bond geometry (Å, º)

References

Associated Data

Supplementary Materials

ACTIONS

PERMALINK

RESOURCES

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Cited by other articles

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6,7-Dichloro-2-methyl-3-phenylquinoxaline

6,7-Dichloro-2-methyl-3-phenylquinoxaline. Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å²)

6,7-Dichloro-2-methyl-3-phenylquinoxaline. Atomic displacement parameters (Å²)