research communications
E)-4-methyl-N-{2-[2-(4-nitrobenzylidene)hydrazin-1-yl]-2-oxoethyl}benzenesulfonamide N,N-dimethylformamide monosolvate
of (aDepartment of Chemistry, Mangalore University, Mangalagangotri 574 199, Mangalore, India, bDepartment of Chemistry, Sri Dharmasthala Manjunatheshwara College (Autonomous), Ujire, KA, India, cInstitute of Materials Science, Darmstadt University of Technology, Alarich-Weiss-Strasse 2, D-64287, Darmstadt, Germany, and dKarnataka State Rural Development and Panchayat Raj University, Gadag 582 101, Karnataka, India
*Correspondence e-mail: gowdabt@yahoo.com
The molecule of the title Schiff base compound, C16H16N4O5S·C3H7NO, displays a trans conformation with respect to the C=N double bond. The C—N and N—N bonds are relatively short compared to their normal bond lengths, indicating some degree of delocalization in the molecule. The molecule is bent at the S atom, with an S—N—C—C torsion angle of 164.48 (11)°. The dihedral angle between the two aromatic rings is 84.594 (7)°. Intermolecular N—H⋯O and C —H⋯O hydrogen bonds connect centrosymmetrically related molecules into dimers forming rings of R33(11) and R22(10) graph-set motif stacked along the a axis into a columnar arrangement. The molecular columns are further linked into a three-dimensional network by C—H⋯π interactions.
Keywords: crystal structure; Schiff base; conformation; C—H⋯O hydrogen bond.
CCDC reference: 1433602
1. Chemical context
N-(p-toluenesulfonyl)amino acids have been studied extensively for their biological and medicinal activities (Tian et al., 2009, 2011; Shedid et al., 2011). The intermolecular interactions of p-toluenesulfonylamide groups lead to supramolecular structures. In continuation of our efforts to explore the potential of N-acylhydrazone derivatives, we report herein the synthesis and of the title compound, (E)-4-methyl-N-{2-[2-(4-nitrobenzylidene)hydrazin-1-yl]-2-oxoethyl}benzenesulfonamide N,N-dimethylformamide monosolvate.
possess a wide variety of biological activities which include anti-inflammatory, analgesic, anticonvulsant, antituberculous, antitumor, anti-HIV and antimicrobial activity. and their derivatives which can be prepared easily are stable and crystalline in nature. These characteristics have made them suitable compounds in recent times for drug design, ligands for metal complexes and for heterocyclic synthesis. Thus, derived from2. Structural commentary
The title compound crystallizes as a dimethylformamide (DMF) monosolvate with one molecule each of the Schiff base and solvent in the ), and two molecules in the (Fig. 3). The conformations of the C—H, N—H and C=O bonds in the central segment are syn to each other. The C8—O3 and C9—N3 bond lengths of 1.219 (2) and 1.274 (2) Å, respectively, confirm their significant double-bond characters. Further, the C8—N2 and N2—N3 bond lengths of 1.354 (2) and 1.3723 (18) Å, respectively, also indicate a significant delocalization of π-electron density over the hydrazone portion of the molecule. The molecule is bent at the S atom, with an S1—N1—C7—C8 torsion angle of 164.48 (11)°. The sulfonamide bond exists in a synclinal conformation, with a C—S—N—C torsion angle of −78.2 (1)°, which is the most preferred conformation for aromatic sulfonamides (Katagiri et al., 2014). The other central part of the molecule is almost linear, as indicated by the C7—C8—N2—N3, C8—N2—N3—C9 and N2—N3—C9—C10 torsion angles [−1.6 (2), −178.98 (14) and 178.34 (13)°, respectively]. The relative orientation of the sulfonamide group with respect to the attached p-tolyl ring is given by the torsion angles C2—C1—S1—N1 = −79.45 (14)° and C6—C1—S1—N1 = 98.87 (16)°, while that of the hydrazone group with the attached 4-nitrobenzene ring is given by the torsion angles C11—C10—C9—N3 = 1.6 (2)° and C15—C10—C9—N3 = −177.27 (15)°, respectively. The dihedral angle between the C1–C6 sulfonyl benzene ring and the mean plane through the SO2—NH—CH2—CO segment is 81.452 (6)°, while that between the C10–C15 benzene ring and the plane through the C9—N3—N2—CO group is 4.296 (10)°. The dihedral angle between the two aromatic rings is 84.594 (7)°. The central part of the title compound, between atoms N1 and C9, is nearly planar with an extended chain conformation. The two benzene rings, i.e. C1–C6 and C10–C15, are inclined to the mean plane of the central spacer unit [O3/N1–N3/C7–C9; maximum deviation of 0.0353 (18) Å for C7] by 85.59 (8) and 4.35 (8)°, respectively.
(Fig. 13. Supramolecular features
The Schiff base and solvent molecules in the and Fig. 2), giving rise to a ring of (11) graph-set motif. These bimolecular units are then linked by a pair of N—H⋯O hydrogen bonds, resulting in inversion dimers forming an (10) ring motif (Fig. 3), which are linked into columns running parallel to the a axis by C—H⋯O hydrogen bonds involving aromatic C3 and sulfonyl O3 atoms (Fig. 4). Adjacent columns are further connected by C—H⋯π interactions, leading to the formation of a three-dimensional framework (Table 1).
are linked by N—H⋯O and C—H⋯O hydrogen bonds (Table 14. Database survey
Comparison of the C—H⋯O interactions observed in the title compound, (I), with those of the 4-methyl derivative of N-acylhydrazone, namely (E)-N-{2-[2-(4-methylbenzylidene)hydrazin-1-yl]-2-oxoethyl}-p-toluenesulfonamide, (II) (Purandara et al., 2015), indicates that the nitro group imparts a strong ability to the aromatic C—H groups to participate in C—H⋯O interactions, whereas the methyl substituent in the benzylidene ring of (II) does not activate aromatic protons for participating in intermolecular C—H⋯O interactions. An aromatic H atom (C14—H14) of the nitrophenyl moiety of (I) is involved in the formation of intermolecular C—H⋯O interactions. The of electron-withdrawing nitro group decreases the electronic density on the benzene ring. As a result, the nitrophenyl moiety provides more acidic protons to form C—H⋯O hydrogen bonds.
5. Synthesis and crystallization
(E)-N-{2-[2-(4-Nitrobenzylidene)hydrazine-1-yl]-2-oxoethyl}-4-methylbenzenesulfonamide N,N-dimethylformamide monosolvate was prepared as follows: p-toluenesulfonyl chloride (0.01 mol) was added to glycine (0.02 mol) dissolved in an aqueous solution of potassium carbonate (0.06 mol, 50 ml). The reaction mixture was stirred at 373 K for 6 h, left overnight at room temperature, then filtered and treated with dilute hydrochloric acid. The solid N-(4-methylbenzenesulfonyl)glycine (L1) obtained was crystallized from aqueous ethanol. Sulfuric acid (0.5 ml) was added to L1 (0.02 mol) dissolved in ethanol (30 ml) and the mixture was refluxed. The reaction mixture was monitored by (TLC) at regular intervals. After completion of the reaction, the reaction mixture was concentrated to remove excess ethanol. The product, N-(4-methylbenzenesulfonyl)glycine ethyl ester (L2), was poured into water, neutralized with sodium bicarbonate and recrystallized from acetone. Pure L2 (0.01 mol) was then added in small portions to a stirred solution of 99% hydrazine hydrate (10 ml) in 30 ml ethanol and the mixture was refluxed for 6 h. After cooling to room temperature, the resulting precipitate was filtered, washed with cold water and dried to obtain N-(4-methylbenzenesulfonyl)glycinyl hydrazide (L3). A mixture of L3 (0.01 mol) and p-nitrobenzaldehyde (0.01 mol) in anhydrous methanol (30 ml) and two drops of glacial acetic acid was refluxed for 8 h. After cooling, the precipitated (E)-N-{2-[2-(4-nitrobenzylidene)hydrazine-1-yl]-2-oxoethyl}-4-methylbenzenesulfonamide was collected by vacuum filtration, washed with cold methanol, dried and recrystallized to constant melting point from methanol (522–523 K). The purity of the compound was checked by TLC and characterized by its IR spectrum. The characteristic absorptions observed are 3236.6, 1687.7, 1587.4, 1338.6 and 1163.1 cm−1 for the stretching bands of N—H, C=O, C=N, S=O asymmetric and S=O symmetric, respectively. The characteristic 1H and 13C NMR specta of the title compound are as follows. 1H NMR (400 MHz, DMSO-d6: δ 2.36 (s, 3H), 3.61, 4.10 (d, 2H,), 7.36–7.39 (m, 2H, Ar—H), 7.72–7.74 (m, 2H, Ar—H), 7.86 (d, 2H, Ar—H), 8.23–8.27 (m, 2H, Ar—H), 7.93 (t, 1H), 8.02 (s, 1H), 11.74 (s, 1H). 13C NMR (400 MHz, DMSO-d6): δ 20.91, 43.20, 44.55, 123.94, 126.60, 127.81, 129.48, 137.48, 140.24, 141.40, 142.64, 144.62, 147.73, 164.64, 169.44. Prism-like colourless single crystals of the title compound employed in the X-ray diffraction study were grown from a DMF solution by slow evaporation of the solvent.
6. Refinement
Crystal data, data collection and structure . H atoms bonded to C atoms were positioned with idealized geometry using a riding model, with C—H = 0.93 (aromatic), 0.96 (methyl) or 0.97 Å (methylene). The amino H atoms were freely refined with the N—H distances restrained to 0.86 (2) Å. All H atoms were refined with isotropic displacement parameters set at 1.2Ueq(C,N) or 1.5Ueq(C) for methyl H atoms. A rotating model was used for the methyl groups.
details are summarized in Table 2
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Supporting information
CCDC reference: 1433602
https://doi.org/10.1107/S2056989017014669/rz5222sup1.cif
contains datablock I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S2056989017014669/rz5222Isup2.hkl
Data collection: CrysAlis CCD (Oxford Diffraction, 2009); cell
CrysAlis RED (Oxford Diffraction, 2009); data reduction: CrysAlis RED (Oxford Diffraction, 2009); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL2014 (Sheldrick, 2015); molecular graphics: PLATON (Spek, 2009), Mercury (Macrae et al., 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).C16H16N4O5S·C3H7NO | Z = 2 |
Mr = 449.48 | F(000) = 472 |
Triclinic, P1 | Dx = 1.402 Mg m−3 |
a = 8.3515 (9) Å | Mo Kα radiation, λ = 0.71073 Å |
b = 10.5778 (9) Å | Cell parameters from 3760 reflections |
c = 13.673 (1) Å | θ = 2.6–27.8° |
α = 107.609 (7)° | µ = 0.20 mm−1 |
β = 98.954 (8)° | T = 293 K |
γ = 106.505 (8)° | Prism, colourless |
V = 1064.57 (18) Å3 | 0.40 × 0.40 × 0.22 mm |
Oxford Diffraction Xcalibur single-crystal X-ray diffractometer with Sapphire CCD Detector | 3592 reflections with I > 2σ(I) |
Rotation method data acquisition using ω scans | Rint = 0.010 |
Absorption correction: multi-scan (CrysAlis RED; Oxford Diffraction, 2009) | θmax = 26.4°, θmin = 2.6° |
Tmin = 0.925, Tmax = 0.958 | h = −10→10 |
7611 measured reflections | k = −9→13 |
4347 independent reflections | l = −17→12 |
Refinement on F2 | 2 restraints |
Least-squares matrix: full | Hydrogen site location: mixed |
R[F2 > 2σ(F2)] = 0.039 | H atoms treated by a mixture of independent and constrained refinement |
wR(F2) = 0.108 | w = 1/[σ2(Fo2) + (0.0546P)2 + 0.3531P] where P = (Fo2 + 2Fc2)/3 |
S = 1.04 | (Δ/σ)max = 0.005 |
4347 reflections | Δρmax = 0.32 e Å−3 |
289 parameters | Δρmin = −0.37 e Å−3 |
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. |
x | y | z | Uiso*/Ueq | ||
C1 | 0.2529 (2) | 0.80172 (17) | 0.30177 (12) | 0.0350 (3) | |
C2 | 0.3764 (2) | 0.73865 (18) | 0.28367 (13) | 0.0395 (4) | |
H2 | 0.3431 | 0.6405 | 0.2546 | 0.047* | |
C3 | 0.5479 (2) | 0.8222 (2) | 0.30897 (14) | 0.0436 (4) | |
H3 | 0.6298 | 0.7794 | 0.2971 | 0.052* | |
C4 | 0.6013 (2) | 0.9691 (2) | 0.35194 (14) | 0.0479 (4) | |
C5 | 0.4745 (3) | 1.0292 (2) | 0.3654 (2) | 0.0671 (6) | |
H5 | 0.5067 | 1.1274 | 0.3914 | 0.080* | |
C6 | 0.3022 (3) | 0.9472 (2) | 0.34106 (17) | 0.0567 (5) | |
H6 | 0.2198 | 0.9898 | 0.3511 | 0.068* | |
C7 | −0.0943 (2) | 0.74344 (18) | 0.10290 (13) | 0.0385 (4) | |
H7A | −0.0028 | 0.8356 | 0.1359 | 0.046* | |
H7B | −0.1997 | 0.7535 | 0.1198 | 0.046* | |
C8 | −0.1211 (2) | 0.69253 (16) | −0.01586 (13) | 0.0348 (3) | |
C9 | −0.2478 (2) | 0.96612 (17) | −0.05202 (13) | 0.0356 (3) | |
H9 | −0.2613 | 0.9393 | −0.1250 | 0.043* | |
C10 | −0.2839 (2) | 1.09163 (16) | 0.00553 (12) | 0.0340 (3) | |
C11 | −0.2613 (3) | 1.13753 (19) | 0.11526 (14) | 0.0476 (4) | |
H11 | −0.2174 | 1.0903 | 0.1539 | 0.057* | |
C12 | −0.3032 (3) | 1.2520 (2) | 0.16685 (14) | 0.0503 (5) | |
H12 | −0.2892 | 1.2819 | 0.2400 | 0.060* | |
C13 | −0.3662 (2) | 1.32173 (17) | 0.10891 (13) | 0.0386 (4) | |
C14 | −0.3851 (2) | 1.28192 (18) | 0.00117 (14) | 0.0415 (4) | |
H14 | −0.4242 | 1.3322 | −0.0364 | 0.050* | |
C15 | −0.3449 (2) | 1.16557 (18) | −0.05016 (13) | 0.0401 (4) | |
H15 | −0.3590 | 1.1364 | −0.1233 | 0.048* | |
C16 | 0.7899 (3) | 1.0600 (3) | 0.3827 (2) | 0.0686 (6) | |
H16A | 0.8405 | 1.0282 | 0.3258 | 0.103* | |
H16B | 0.8491 | 1.0529 | 0.4458 | 0.103* | |
H16C | 0.8002 | 1.1568 | 0.3961 | 0.103* | |
C17 | 0.2091 (3) | 0.3550 (2) | 0.33832 (16) | 0.0609 (6) | |
H17 | 0.1971 | 0.4207 | 0.3081 | 0.073* | |
C18 | 0.2597 (4) | 0.3016 (3) | 0.49621 (18) | 0.0765 (7) | |
H18A | 0.3792 | 0.3327 | 0.5340 | 0.115* | |
H18B | 0.2256 | 0.2072 | 0.4450 | 0.115* | |
H18C | 0.1896 | 0.3022 | 0.5456 | 0.115* | |
C19 | 0.2526 (5) | 0.5369 (3) | 0.50861 (19) | 0.0921 (10) | |
H19A | 0.2398 | 0.5910 | 0.4647 | 0.138* | |
H19B | 0.3644 | 0.5825 | 0.5590 | 0.138* | |
H19C | 0.1641 | 0.5308 | 0.5460 | 0.138* | |
N1 | −0.04825 (19) | 0.64431 (15) | 0.14518 (11) | 0.0387 (3) | |
H1N | −0.016 (2) | 0.5851 (18) | 0.1079 (14) | 0.046* | |
N2 | −0.17143 (19) | 0.77528 (14) | −0.06336 (11) | 0.0385 (3) | |
H2N | −0.181 (2) | 0.758 (2) | −0.1298 (12) | 0.046* | |
N3 | −0.19806 (17) | 0.89339 (13) | −0.00295 (10) | 0.0347 (3) | |
N4 | −0.4191 (2) | 1.43967 (16) | 0.16299 (13) | 0.0497 (4) | |
N5 | 0.2367 (2) | 0.39543 (18) | 0.44244 (12) | 0.0535 (4) | |
O1 | 0.02638 (17) | 0.57237 (14) | 0.29491 (11) | 0.0516 (3) | |
O2 | −0.05327 (16) | 0.78629 (15) | 0.32153 (10) | 0.0501 (3) | |
O3 | −0.09848 (18) | 0.58545 (13) | −0.06656 (10) | 0.0496 (3) | |
O4 | −0.4233 (3) | 1.46197 (19) | 0.25518 (13) | 0.0808 (5) | |
O5 | −0.4588 (2) | 1.50928 (16) | 0.11362 (13) | 0.0681 (4) | |
O6 | 0.1980 (3) | 0.23973 (17) | 0.27815 (11) | 0.0757 (5) | |
S1 | 0.03312 (5) | 0.69598 (5) | 0.27126 (3) | 0.03706 (13) |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0402 (8) | 0.0406 (9) | 0.0286 (7) | 0.0209 (7) | 0.0080 (6) | 0.0129 (6) |
C2 | 0.0461 (9) | 0.0387 (9) | 0.0435 (9) | 0.0246 (7) | 0.0132 (7) | 0.0187 (7) |
C3 | 0.0430 (9) | 0.0543 (11) | 0.0461 (10) | 0.0285 (8) | 0.0133 (7) | 0.0242 (8) |
C4 | 0.0438 (10) | 0.0525 (11) | 0.0418 (9) | 0.0167 (8) | 0.0063 (7) | 0.0125 (8) |
C5 | 0.0575 (12) | 0.0384 (10) | 0.0833 (16) | 0.0156 (9) | 0.0118 (11) | −0.0032 (10) |
C6 | 0.0489 (11) | 0.0439 (10) | 0.0701 (13) | 0.0260 (9) | 0.0140 (9) | 0.0031 (9) |
C7 | 0.0469 (9) | 0.0381 (8) | 0.0363 (8) | 0.0223 (7) | 0.0093 (7) | 0.0155 (7) |
C8 | 0.0335 (8) | 0.0330 (8) | 0.0363 (8) | 0.0132 (6) | 0.0063 (6) | 0.0109 (7) |
C9 | 0.0408 (8) | 0.0348 (8) | 0.0327 (8) | 0.0136 (7) | 0.0085 (6) | 0.0146 (7) |
C10 | 0.0348 (8) | 0.0321 (8) | 0.0361 (8) | 0.0111 (6) | 0.0076 (6) | 0.0152 (7) |
C11 | 0.0671 (12) | 0.0460 (10) | 0.0337 (9) | 0.0289 (9) | 0.0038 (8) | 0.0161 (8) |
C12 | 0.0694 (12) | 0.0498 (11) | 0.0303 (9) | 0.0282 (9) | 0.0057 (8) | 0.0098 (8) |
C13 | 0.0383 (8) | 0.0332 (8) | 0.0417 (9) | 0.0137 (7) | 0.0074 (7) | 0.0104 (7) |
C14 | 0.0469 (9) | 0.0421 (9) | 0.0454 (9) | 0.0223 (8) | 0.0120 (7) | 0.0234 (8) |
C15 | 0.0487 (9) | 0.0440 (9) | 0.0349 (8) | 0.0205 (8) | 0.0122 (7) | 0.0197 (7) |
C16 | 0.0492 (12) | 0.0686 (14) | 0.0714 (15) | 0.0119 (10) | 0.0067 (10) | 0.0157 (12) |
C17 | 0.0906 (16) | 0.0637 (13) | 0.0425 (10) | 0.0440 (12) | 0.0159 (10) | 0.0236 (10) |
C18 | 0.125 (2) | 0.0649 (14) | 0.0463 (12) | 0.0357 (15) | 0.0264 (13) | 0.0263 (11) |
C19 | 0.148 (3) | 0.0744 (16) | 0.0518 (14) | 0.0653 (18) | 0.0017 (15) | 0.0082 (12) |
N1 | 0.0462 (8) | 0.0389 (8) | 0.0369 (8) | 0.0245 (6) | 0.0084 (6) | 0.0143 (6) |
N2 | 0.0517 (8) | 0.0368 (7) | 0.0301 (7) | 0.0211 (6) | 0.0092 (6) | 0.0120 (6) |
N3 | 0.0391 (7) | 0.0319 (7) | 0.0340 (7) | 0.0150 (6) | 0.0077 (5) | 0.0118 (6) |
N4 | 0.0467 (9) | 0.0446 (9) | 0.0519 (10) | 0.0204 (7) | 0.0073 (7) | 0.0085 (7) |
N5 | 0.0735 (11) | 0.0551 (9) | 0.0376 (8) | 0.0337 (9) | 0.0124 (7) | 0.0157 (7) |
O1 | 0.0566 (8) | 0.0575 (8) | 0.0568 (8) | 0.0243 (6) | 0.0169 (6) | 0.0377 (7) |
O2 | 0.0494 (7) | 0.0667 (8) | 0.0454 (7) | 0.0334 (6) | 0.0216 (6) | 0.0190 (6) |
O3 | 0.0665 (8) | 0.0425 (7) | 0.0430 (7) | 0.0318 (6) | 0.0107 (6) | 0.0099 (5) |
O4 | 0.1144 (14) | 0.0879 (12) | 0.0502 (9) | 0.0643 (11) | 0.0239 (9) | 0.0111 (8) |
O5 | 0.0834 (11) | 0.0599 (9) | 0.0783 (10) | 0.0475 (8) | 0.0219 (8) | 0.0277 (8) |
O6 | 0.1306 (15) | 0.0703 (10) | 0.0394 (8) | 0.0556 (10) | 0.0250 (8) | 0.0178 (7) |
S1 | 0.0401 (2) | 0.0458 (2) | 0.0349 (2) | 0.02253 (18) | 0.01295 (16) | 0.01948 (18) |
C1—C6 | 1.377 (2) | C13—C14 | 1.374 (2) |
C1—C2 | 1.393 (2) | C13—N4 | 1.468 (2) |
C1—S1 | 1.7629 (17) | C14—C15 | 1.381 (2) |
C2—C3 | 1.376 (2) | C14—H14 | 0.9300 |
C2—H2 | 0.9300 | C15—H15 | 0.9300 |
C3—C4 | 1.389 (3) | C16—H16A | 0.9600 |
C3—H3 | 0.9300 | C16—H16B | 0.9600 |
C4—C5 | 1.390 (3) | C16—H16C | 0.9600 |
C4—C16 | 1.507 (3) | C17—O6 | 1.215 (2) |
C5—C6 | 1.379 (3) | C17—N5 | 1.318 (2) |
C5—H5 | 0.9300 | C17—H17 | 0.9300 |
C6—H6 | 0.9300 | C18—N5 | 1.438 (3) |
C7—N1 | 1.452 (2) | C18—H18A | 0.9600 |
C7—C8 | 1.505 (2) | C18—H18B | 0.9600 |
C7—H7A | 0.9700 | C18—H18C | 0.9600 |
C7—H7B | 0.9700 | C19—N5 | 1.451 (3) |
C8—O3 | 1.2191 (19) | C19—H19A | 0.9600 |
C8—N2 | 1.354 (2) | C19—H19B | 0.9600 |
C9—N3 | 1.274 (2) | C19—H19C | 0.9600 |
C9—C10 | 1.464 (2) | N1—S1 | 1.6082 (14) |
C9—H9 | 0.9300 | N1—H1N | 0.818 (15) |
C10—C15 | 1.384 (2) | N2—N3 | 1.3723 (18) |
C10—C11 | 1.393 (2) | N2—H2N | 0.856 (15) |
C11—C12 | 1.374 (3) | N4—O5 | 1.216 (2) |
C11—H11 | 0.9300 | N4—O4 | 1.218 (2) |
C12—C13 | 1.376 (2) | O1—S1 | 1.4273 (13) |
C12—H12 | 0.9300 | O2—S1 | 1.4333 (13) |
C6—C1—C2 | 119.83 (16) | C15—C14—H14 | 120.7 |
C6—C1—S1 | 119.93 (13) | C14—C15—C10 | 121.03 (16) |
C2—C1—S1 | 120.22 (13) | C14—C15—H15 | 119.5 |
C3—C2—C1 | 119.72 (16) | C10—C15—H15 | 119.5 |
C3—C2—H2 | 120.1 | C4—C16—H16A | 109.5 |
C1—C2—H2 | 120.1 | C4—C16—H16B | 109.5 |
C2—C3—C4 | 121.40 (16) | H16A—C16—H16B | 109.5 |
C2—C3—H3 | 119.3 | C4—C16—H16C | 109.5 |
C4—C3—H3 | 119.3 | H16A—C16—H16C | 109.5 |
C3—C4—C5 | 117.63 (18) | H16B—C16—H16C | 109.5 |
C3—C4—C16 | 121.21 (18) | O6—C17—N5 | 126.0 (2) |
C5—C4—C16 | 121.16 (19) | O6—C17—H17 | 117.0 |
C6—C5—C4 | 121.71 (18) | N5—C17—H17 | 117.0 |
C6—C5—H5 | 119.1 | N5—C18—H18A | 109.5 |
C4—C5—H5 | 119.1 | N5—C18—H18B | 109.5 |
C1—C6—C5 | 119.63 (17) | H18A—C18—H18B | 109.5 |
C1—C6—H6 | 120.2 | N5—C18—H18C | 109.5 |
C5—C6—H6 | 120.2 | H18A—C18—H18C | 109.5 |
N1—C7—C8 | 110.67 (13) | H18B—C18—H18C | 109.5 |
N1—C7—H7A | 109.5 | N5—C19—H19A | 109.5 |
C8—C7—H7A | 109.5 | N5—C19—H19B | 109.5 |
N1—C7—H7B | 109.5 | H19A—C19—H19B | 109.5 |
C8—C7—H7B | 109.5 | N5—C19—H19C | 109.5 |
H7A—C7—H7B | 108.1 | H19A—C19—H19C | 109.5 |
O3—C8—N2 | 121.73 (15) | H19B—C19—H19C | 109.5 |
O3—C8—C7 | 123.18 (14) | C7—N1—S1 | 118.51 (11) |
N2—C8—C7 | 115.08 (13) | C7—N1—H1N | 118.6 (14) |
N3—C9—C10 | 120.54 (14) | S1—N1—H1N | 115.5 (14) |
N3—C9—H9 | 119.7 | C8—N2—N3 | 119.45 (13) |
C10—C9—H9 | 119.7 | C8—N2—H2N | 120.9 (13) |
C15—C10—C11 | 118.91 (15) | N3—N2—H2N | 119.5 (13) |
C15—C10—C9 | 119.51 (14) | C9—N3—N2 | 116.76 (13) |
C11—C10—C9 | 121.57 (14) | O5—N4—O4 | 123.01 (17) |
C12—C11—C10 | 120.49 (16) | O5—N4—C13 | 118.74 (16) |
C12—C11—H11 | 119.8 | O4—N4—C13 | 118.25 (16) |
C10—C11—H11 | 119.8 | C17—N5—C18 | 120.84 (18) |
C11—C12—C13 | 119.13 (16) | C17—N5—C19 | 122.27 (18) |
C11—C12—H12 | 120.4 | C18—N5—C19 | 116.84 (17) |
C13—C12—H12 | 120.4 | O1—S1—O2 | 119.85 (8) |
C14—C13—C12 | 121.87 (16) | O1—S1—N1 | 107.10 (8) |
C14—C13—N4 | 118.89 (15) | O2—S1—N1 | 106.47 (8) |
C12—C13—N4 | 119.22 (16) | O1—S1—C1 | 107.68 (8) |
C13—C14—C15 | 118.52 (15) | O2—S1—C1 | 107.05 (8) |
C13—C14—H14 | 120.7 | N1—S1—C1 | 108.25 (8) |
C6—C1—C2—C3 | 2.5 (3) | C11—C10—C15—C14 | −0.8 (3) |
S1—C1—C2—C3 | −179.22 (12) | C9—C10—C15—C14 | 178.07 (15) |
C1—C2—C3—C4 | −0.4 (3) | C8—C7—N1—S1 | 164.48 (11) |
C2—C3—C4—C5 | −2.1 (3) | O3—C8—N2—N3 | 178.85 (15) |
C2—C3—C4—C16 | 178.09 (18) | C7—C8—N2—N3 | −1.6 (2) |
C3—C4—C5—C6 | 2.5 (3) | C10—C9—N3—N2 | 178.34 (13) |
C16—C4—C5—C6 | −177.7 (2) | C8—N2—N3—C9 | −178.98 (14) |
C2—C1—C6—C5 | −2.1 (3) | C14—C13—N4—O5 | −8.6 (3) |
S1—C1—C6—C5 | 179.61 (17) | C12—C13—N4—O5 | 173.06 (18) |
C4—C5—C6—C1 | −0.4 (4) | C14—C13—N4—O4 | 170.45 (18) |
N1—C7—C8—O3 | −3.0 (2) | C12—C13—N4—O4 | −7.9 (3) |
N1—C7—C8—N2 | 177.44 (14) | O6—C17—N5—C18 | 1.0 (4) |
N3—C9—C10—C15 | −177.27 (15) | O6—C17—N5—C19 | 178.4 (3) |
N3—C9—C10—C11 | 1.6 (2) | C7—N1—S1—O1 | 165.96 (13) |
C15—C10—C11—C12 | 1.7 (3) | C7—N1—S1—O2 | 36.61 (15) |
C9—C10—C11—C12 | −177.14 (17) | C7—N1—S1—C1 | −78.19 (14) |
C10—C11—C12—C13 | −0.7 (3) | C6—C1—S1—O1 | −145.65 (15) |
C11—C12—C13—C14 | −1.3 (3) | C2—C1—S1—O1 | 36.03 (15) |
C11—C12—C13—N4 | 177.02 (17) | C6—C1—S1—O2 | −15.55 (17) |
C12—C13—C14—C15 | 2.2 (3) | C2—C1—S1—O2 | 166.13 (13) |
N4—C13—C14—C15 | −176.14 (15) | C6—C1—S1—N1 | 98.87 (16) |
C13—C14—C15—C10 | −1.1 (3) | C2—C1—S1—N1 | −79.45 (14) |
Cg1 is the centroid of the C1–C6 ring. |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1N···O3i | 0.82 (2) | 2.24 (2) | 3.0142 (18) | 158 (2) |
N2—H2N···O6i | 0.86 (2) | 2.02 (2) | 2.863 (2) | 168 (2) |
C3—H3···O2ii | 0.93 | 2.59 | 3.442 (2) | 152 |
C14—H14···O5iii | 0.93 | 2.56 | 3.484 (2) | 171 |
C18—H18C···O2iv | 0.96 | 2.56 | 3.446 (3) | 154 |
C15—H15···Cg1v | 0.93 | 2.66 | 3.564 (2) | 164 |
Symmetry codes: (i) −x, −y+1, −z; (ii) x+1, y, z; (iii) −x−1, −y+3, −z; (iv) −x, −y+1, −z+1; (v) −x, −y+2, −z. |
Funding information
HP thanks the Department of Science and Technology, Government of India, New Delhi, for a research fellowship under its INSPIRE Program and BTG thanks the University Grants Commission, Government of India, New Delhi, for a special grant under UGC–BSR one-time grant to faculty. The authors also thank SAIF Panjab University for extending the services of NMR facility.
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