organic compounds
Ethyl 3-(4-methoxyphenyl)-2-phenyl-3-(4-phenyl-1,2,3-selenadiazol-5-yl)propanoate
aCentre of Advanced Study in Crystallography and Biophysics, University of Madras, Guindy Campus, Chennai 600 025, India, bDepartment of Chemistry, Sri Sarada College for Women (Autonomous), Fairlands, Salem 636 016, India, and cDepartment of Industrial Chemistry, Alagappa University, Karaikudi 630 003, India
*Correspondence e-mail: mnpsy2004@yahoo.com
In the title compound, C26H24N2O3Se, the selenadiazole ring is planar [maximum deviation = 0.002 (2) Å]. The dihedral angle between the selenadiazole ring and the attached phenyl ring is 49.00 (13)°. The is stabilized by intermolecular C—H⋯N and C—H⋯π interactions.
Related literature
For general background to selenadiazole derivatives, see: El-Bahaie et al. (1990); El-Kashef et al. (1986); Kuroda et al. (2001); Padmavathi et al. (2002); Plano et al. (2010). For hydrogen-bond motifs, see: Bernstein et al. (1995).
Experimental
Crystal data
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Refinement
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Data collection: APEX2 (Bruker, 2008); cell SAINT (Bruker, 2008); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997); software used to prepare material for publication: SHELXL97 and PLATON (Spek, 2009).
Supporting information
https://doi.org/10.1107/S1600536812028322/bt5929sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536812028322/bt5929Isup2.hkl
Supporting information file. DOI: https://doi.org/10.1107/S1600536812028322/bt5929Isup3.cml
A mixture of ethyl-3-(4-methoxyphenyl)-5-oxo-2,5-diphenylpentanoate (1 mmol), semicarbazide hydrochloride(2 mmol) and anhydrous sodium acetate (3 mmol) in ethanol (10 ml) was refluxed for 4 hrs. After completion of the reaction as monitored by TLC, the mixture was poured into ice cold water and the resulting semicarbazone was filtered off. Then, a mixtureof semicarbazone (1 mmol) and SeO2 (2 mmol) in tetrahydrofuran (10 ml) were refluxed on a water bath for 1 h. The selenium deposited on cooling was removed by filtration, and the filtrate was poured into crushed ice, extracted with dichloromethane, and purified by
using silica gel (60–120 mesh) with 97:3 petroleum ether: ethyl acetate as to give ethyl 3-(4,5-dihydro-4-phenyl-1,2, 3-selenadiazol-5-yl)-3-(4-methoxyphenyl)-2-phenylpropanoate.H atoms were positioned geometrically C—H=0.93–0.98 Å) and allowed to ride on their parent atoms,with Uiso(H) = 1.5Ueq(C) for methyl H 1.2Ueq(C) for other H atoms. The Uij components of atom pairs C19/C20 and C24/C25 in the direction of the bond between them were restrained to be equal within an effective standard deviation of 0.01.
Selenium containing compounds, like 1,2,3-selenadiazoles are of increasing interest because of their chemical properties and biological applications such as anti-fungal (Kuroda et al., 2001), anti-bacterial (El-Kashef et al., 1986), anti-microbial (El-Bahaie et al., 1990), anti-cancer (Plano et al., 2010) and insecticidal (Padmavathi et al., 2002) activities. In view of the growing importance of selenium containing compounds, the
of the title compound has been carried out.The ORTEP plot of the molecule is shown in Fig. 1. The selenadiazol ring is planar(maximum deviation -0.002 (2) Å). The dihedral angle between the selenadiazol ring and the attached phenyl ring(C2—C7) is 49.00 (13)°. The propanoate group assumes an extended conformation which can be seen from the torsion angle (C16—C23—O1—C24) value of 178.4 (2)°. The methoxy group lies in the plane of the phenyl ring (C10—C15) and twisted away with propanate group & phenyl ring (C17—C22) at angles of 8.21 (12)° & 68.11 (12)°, respectively. The packing of the molecules viewed down a axis is shown in Fig. 2. The molecules are stabilized by C—H···N and C—H···π types of intermolecular interactions in addition to van der Waals forces.
For general background to selenadiazole derivatives, see: El-Bahaie et al. (1990); El-Kashef et al. (1986); Kuroda et al. (2001); Padmavathi et al. (2002); Plano et al. (2010). For hydrogen-bond motifs, see: Bernstein et al. (1995).
Data collection: APEX2 (Bruker, 2008); cell
SAINT (Bruker, 2008); data reduction: SAINT (Bruker, 2008); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008) and PLATON (Spek, 2009).C26H24N2O3Se | F(000) = 1008 |
Mr = 491.43 | Dx = 1.380 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 5918 reflections |
a = 11.8187 (4) Å | θ = 1.8–28.4° |
b = 12.8241 (5) Å | µ = 1.62 mm−1 |
c = 16.1837 (6) Å | T = 293 K |
β = 105.280 (2)° | Block, white crystalline |
V = 2366.16 (15) Å3 | 0.20 × 0.15 × 0.15 mm |
Z = 4 |
Bruker SMART APEXII area-detector diffractometer | 5918 independent reflections |
Radiation source: fine-focus sealed tube | 3015 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.046 |
ω and φ scans | θmax = 28.4°, θmin = 1.8° |
Absorption correction: multi-scan (SADABS; Bruker, 2008) | h = −15→15 |
Tmin = 0.748, Tmax = 0.785 | k = −13→17 |
22954 measured reflections | l = −18→21 |
Refinement on F2 | Primary atom site location: structure-invariant direct methods |
Least-squares matrix: full | Secondary atom site location: difference Fourier map |
R[F2 > 2σ(F2)] = 0.038 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.108 | H-atom parameters constrained |
S = 0.99 | w = 1/[σ2(Fo2) + (0.0454P)2 + 0.2327P] where P = (Fo2 + 2Fc2)/3 |
5918 reflections | (Δ/σ)max = 0.002 |
291 parameters | Δρmax = 0.24 e Å−3 |
2 restraints | Δρmin = −0.28 e Å−3 |
C26H24N2O3Se | V = 2366.16 (15) Å3 |
Mr = 491.43 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 11.8187 (4) Å | µ = 1.62 mm−1 |
b = 12.8241 (5) Å | T = 293 K |
c = 16.1837 (6) Å | 0.20 × 0.15 × 0.15 mm |
β = 105.280 (2)° |
Bruker SMART APEXII area-detector diffractometer | 5918 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2008) | 3015 reflections with I > 2σ(I) |
Tmin = 0.748, Tmax = 0.785 | Rint = 0.046 |
22954 measured reflections |
R[F2 > 2σ(F2)] = 0.038 | 2 restraints |
wR(F2) = 0.108 | H-atom parameters constrained |
S = 0.99 | Δρmax = 0.24 e Å−3 |
5918 reflections | Δρmin = −0.28 e Å−3 |
291 parameters |
Geometry. All e.s.d.'s (except the e.s.d. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell e.s.d.'s are taken into account individually in the estimation of e.s.d.'s in distances, angles and torsion angles; correlations between e.s.d.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell e.s.d.'s is used for estimating e.s.d.'s involving l.s. planes. |
Refinement. Refinement of F2 against ALL reflections. The weighted R-factor wR and goodness of fit S are based on F2, conventional R-factors R are based on F, with F set to zero for negative F2. The threshold expression of F2 > σ(F2) is used only for calculating R-factors(gt) etc. and is not relevant to the choice of reflections for refinement. R-factors based on F2 are statistically about twice as large as those based on F, and R- factors based on ALL data will be even larger. |
x | y | z | Uiso*/Ueq | ||
C1 | 0.93252 (18) | 0.38149 (19) | 0.26921 (14) | 0.0573 (6) | |
C2 | 0.8634 (2) | 0.45552 (18) | 0.30523 (15) | 0.0600 (6) | |
C3 | 0.8805 (3) | 0.4614 (2) | 0.39336 (18) | 0.0801 (8) | |
H3 | 0.9360 | 0.4188 | 0.4292 | 0.096* | |
C4 | 0.8160 (3) | 0.5299 (3) | 0.4282 (2) | 0.0970 (10) | |
H4 | 0.8284 | 0.5335 | 0.4873 | 0.116* | |
C5 | 0.7334 (3) | 0.5929 (3) | 0.3758 (3) | 0.1004 (10) | |
H5 | 0.6889 | 0.6381 | 0.3995 | 0.120* | |
C6 | 0.7164 (3) | 0.5894 (2) | 0.2896 (2) | 0.0874 (8) | |
H6 | 0.6607 | 0.6325 | 0.2544 | 0.105* | |
C7 | 0.7816 (2) | 0.5218 (2) | 0.25363 (17) | 0.0689 (7) | |
H7 | 0.7706 | 0.5208 | 0.1946 | 0.083* | |
C8 | 0.89231 (18) | 0.31086 (19) | 0.20497 (14) | 0.0552 (6) | |
C9 | 0.76498 (17) | 0.28768 (18) | 0.15966 (13) | 0.0517 (6) | |
H9 | 0.7194 | 0.3502 | 0.1642 | 0.062* | |
C10 | 0.71970 (17) | 0.20024 (19) | 0.20511 (13) | 0.0506 (6) | |
C11 | 0.6465 (2) | 0.2215 (2) | 0.25734 (16) | 0.0621 (6) | |
H11 | 0.6253 | 0.2902 | 0.2643 | 0.075* | |
C12 | 0.6049 (2) | 0.1429 (2) | 0.29906 (15) | 0.0692 (7) | |
H12 | 0.5557 | 0.1589 | 0.3337 | 0.083* | |
C13 | 0.63546 (19) | 0.0406 (2) | 0.28997 (14) | 0.0610 (6) | |
C14 | 0.7102 (2) | 0.0182 (2) | 0.23980 (14) | 0.0602 (6) | |
H14 | 0.7331 | −0.0502 | 0.2341 | 0.072* | |
C15 | 0.75087 (19) | 0.0977 (2) | 0.19819 (14) | 0.0569 (6) | |
H15 | 0.8010 | 0.0818 | 0.1643 | 0.068* | |
C16 | 0.74743 (19) | 0.26514 (18) | 0.06321 (14) | 0.0532 (6) | |
H16 | 0.7854 | 0.1984 | 0.0581 | 0.064* | |
C17 | 0.6178 (2) | 0.25479 (19) | 0.01685 (14) | 0.0559 (6) | |
C18 | 0.5418 (2) | 0.3368 (2) | 0.01082 (15) | 0.0692 (7) | |
H18 | 0.5694 | 0.4004 | 0.0358 | 0.083* | |
C19 | 0.4241 (2) | 0.3260 (3) | −0.03218 (17) | 0.0874 (9) | |
H19 | 0.3733 | 0.3821 | −0.0357 | 0.105* | |
C20 | 0.3833 (3) | 0.2340 (4) | −0.06894 (19) | 0.1056 (13) | |
H20 | 0.3046 | 0.2273 | −0.0983 | 0.127* | |
C21 | 0.4568 (3) | 0.1517 (3) | −0.0631 (2) | 0.1099 (12) | |
H21 | 0.4280 | 0.0882 | −0.0876 | 0.132* | |
C22 | 0.5750 (2) | 0.1614 (2) | −0.02057 (16) | 0.0825 (8) | |
H22 | 0.6251 | 0.1048 | −0.0174 | 0.099* | |
C23 | 0.8048 (2) | 0.3473 (2) | 0.02199 (15) | 0.0636 (6) | |
C24 | 0.9300 (3) | 0.3684 (3) | −0.0716 (2) | 0.1186 (13) | |
H24A | 0.8975 | 0.3616 | −0.1330 | 0.142* | |
H24B | 0.9233 | 0.4409 | −0.0563 | 0.142* | |
C25 | 1.0508 (3) | 0.3386 (3) | −0.0492 (3) | 0.1373 (15) | |
H25A | 1.0866 | 0.3579 | 0.0091 | 0.206* | |
H25B | 1.0901 | 0.3734 | −0.0863 | 0.206* | |
H25C | 1.0566 | 0.2645 | −0.0555 | 0.206* | |
C26 | 0.6290 (3) | −0.1371 (3) | 0.3307 (2) | 0.0979 (10) | |
H26A | 0.6117 | −0.1605 | 0.2723 | 0.147* | |
H26B | 0.5900 | −0.1813 | 0.3624 | 0.147* | |
H26C | 0.7121 | −0.1399 | 0.3558 | 0.147* | |
N1 | 1.11262 (17) | 0.3127 (2) | 0.27663 (15) | 0.0825 (7) | |
N2 | 1.05298 (17) | 0.37906 (18) | 0.30570 (13) | 0.0737 (6) | |
O1 | 0.79677 (18) | 0.43897 (17) | 0.03213 (13) | 0.0920 (6) | |
O2 | 0.86503 (16) | 0.30345 (16) | −0.02744 (11) | 0.0793 (5) | |
O3 | 0.58939 (16) | −0.03346 (17) | 0.33286 (11) | 0.0845 (6) | |
Se1 | 1.01611 (2) | 0.23384 (2) | 0.189123 (19) | 0.07749 (14) |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0423 (12) | 0.0620 (15) | 0.0588 (14) | −0.0054 (11) | −0.0022 (10) | 0.0037 (12) |
C2 | 0.0525 (13) | 0.0566 (15) | 0.0631 (15) | −0.0116 (12) | 0.0011 (11) | −0.0054 (12) |
C3 | 0.087 (2) | 0.074 (2) | 0.0717 (19) | −0.0048 (16) | 0.0061 (15) | 0.0003 (15) |
C4 | 0.124 (3) | 0.088 (2) | 0.084 (2) | −0.012 (2) | 0.037 (2) | −0.0146 (19) |
C5 | 0.099 (2) | 0.087 (2) | 0.123 (3) | 0.002 (2) | 0.042 (2) | −0.018 (2) |
C6 | 0.0725 (18) | 0.071 (2) | 0.109 (2) | 0.0075 (16) | 0.0075 (17) | −0.0109 (18) |
C7 | 0.0575 (14) | 0.0651 (17) | 0.0728 (16) | −0.0058 (13) | −0.0024 (12) | −0.0041 (14) |
C8 | 0.0386 (11) | 0.0635 (15) | 0.0582 (13) | 0.0012 (11) | 0.0032 (10) | 0.0024 (12) |
C9 | 0.0339 (10) | 0.0581 (15) | 0.0572 (13) | 0.0005 (10) | 0.0018 (9) | −0.0093 (11) |
C10 | 0.0333 (10) | 0.0654 (16) | 0.0495 (12) | −0.0019 (10) | 0.0046 (9) | −0.0100 (11) |
C11 | 0.0460 (12) | 0.0768 (17) | 0.0615 (15) | 0.0070 (13) | 0.0105 (11) | −0.0119 (14) |
C12 | 0.0502 (13) | 0.103 (2) | 0.0595 (15) | −0.0009 (15) | 0.0233 (12) | −0.0128 (15) |
C13 | 0.0465 (13) | 0.083 (2) | 0.0532 (14) | −0.0084 (13) | 0.0119 (11) | −0.0031 (13) |
C14 | 0.0530 (13) | 0.0678 (16) | 0.0602 (14) | −0.0020 (12) | 0.0159 (11) | −0.0057 (13) |
C15 | 0.0463 (12) | 0.0696 (17) | 0.0577 (14) | −0.0014 (12) | 0.0190 (11) | −0.0060 (13) |
C16 | 0.0414 (11) | 0.0583 (14) | 0.0563 (13) | −0.0021 (11) | 0.0065 (10) | −0.0027 (11) |
C17 | 0.0450 (12) | 0.0755 (18) | 0.0434 (12) | −0.0083 (12) | 0.0051 (10) | 0.0011 (11) |
C18 | 0.0496 (14) | 0.091 (2) | 0.0614 (15) | −0.0017 (14) | 0.0058 (11) | −0.0004 (14) |
C19 | 0.0488 (15) | 0.147 (3) | 0.0614 (16) | 0.0033 (18) | 0.0053 (12) | 0.0100 (18) |
C20 | 0.0575 (18) | 0.185 (4) | 0.0605 (18) | −0.036 (2) | −0.0079 (14) | 0.014 (2) |
C21 | 0.091 (2) | 0.128 (3) | 0.089 (2) | −0.052 (2) | −0.0134 (19) | −0.009 (2) |
C22 | 0.0764 (18) | 0.083 (2) | 0.0766 (17) | −0.0195 (16) | −0.0004 (15) | −0.0111 (16) |
C23 | 0.0447 (13) | 0.079 (2) | 0.0600 (15) | −0.0092 (14) | 0.0021 (11) | 0.0016 (15) |
C24 | 0.080 (2) | 0.169 (4) | 0.110 (2) | −0.011 (2) | 0.0330 (19) | 0.049 (2) |
C25 | 0.097 (3) | 0.108 (3) | 0.229 (5) | −0.029 (2) | 0.082 (3) | −0.020 (3) |
C26 | 0.105 (2) | 0.098 (3) | 0.097 (2) | −0.017 (2) | 0.0379 (19) | 0.0164 (19) |
N1 | 0.0399 (11) | 0.1018 (18) | 0.0956 (17) | −0.0025 (12) | 0.0000 (11) | 0.0053 (14) |
N2 | 0.0448 (11) | 0.0841 (16) | 0.0790 (14) | −0.0109 (11) | −0.0068 (10) | 0.0003 (12) |
O1 | 0.0964 (15) | 0.0734 (14) | 0.1110 (16) | −0.0179 (12) | 0.0357 (12) | 0.0019 (12) |
O2 | 0.0643 (11) | 0.1052 (14) | 0.0741 (11) | −0.0009 (11) | 0.0280 (10) | 0.0144 (11) |
O3 | 0.0791 (12) | 0.1050 (16) | 0.0787 (12) | −0.0122 (12) | 0.0376 (10) | 0.0076 (11) |
Se1 | 0.04128 (15) | 0.0978 (3) | 0.0883 (2) | 0.00942 (14) | 0.00818 (13) | −0.00765 (16) |
C1—C8 | 1.366 (3) | C16—C23 | 1.502 (3) |
C1—N2 | 1.390 (3) | C16—C17 | 1.524 (3) |
C1—C2 | 1.470 (3) | C16—H16 | 0.9800 |
C2—C7 | 1.388 (3) | C17—C18 | 1.369 (3) |
C2—C3 | 1.389 (3) | C17—C22 | 1.377 (3) |
C3—C4 | 1.377 (4) | C18—C19 | 1.389 (3) |
C3—H3 | 0.9300 | C18—H18 | 0.9300 |
C4—C5 | 1.375 (4) | C19—C20 | 1.351 (5) |
C4—H4 | 0.9300 | C19—H19 | 0.9300 |
C5—C6 | 1.357 (4) | C20—C21 | 1.355 (5) |
C5—H5 | 0.9300 | C20—H20 | 0.9300 |
C6—C7 | 1.386 (4) | C21—C22 | 1.390 (4) |
C6—H6 | 0.9300 | C21—H21 | 0.9300 |
C7—H7 | 0.9300 | C22—H22 | 0.9300 |
C8—C9 | 1.520 (3) | C23—O1 | 1.194 (3) |
C8—Se1 | 1.838 (2) | C23—O2 | 1.328 (3) |
C9—C10 | 1.514 (3) | C24—C25 | 1.429 (4) |
C9—C16 | 1.547 (3) | C24—O2 | 1.444 (3) |
C9—H9 | 0.9800 | C24—H24A | 0.9700 |
C10—C15 | 1.378 (3) | C24—H24B | 0.9700 |
C10—C11 | 1.386 (3) | C25—H25A | 0.9600 |
C11—C12 | 1.375 (3) | C25—H25B | 0.9600 |
C11—H11 | 0.9300 | C25—H25C | 0.9600 |
C12—C13 | 1.380 (4) | C26—O3 | 1.412 (4) |
C12—H12 | 0.9300 | C26—H26A | 0.9600 |
C13—O3 | 1.371 (3) | C26—H26B | 0.9600 |
C13—C14 | 1.378 (3) | C26—H26C | 0.9600 |
C14—C15 | 1.377 (3) | N1—N2 | 1.272 (3) |
C14—H14 | 0.9300 | N1—Se1 | 1.865 (2) |
C15—H15 | 0.9300 | ||
C8—C1—N2 | 114.9 (2) | C23—C16—C9 | 111.16 (19) |
C8—C1—C2 | 127.72 (19) | C17—C16—C9 | 111.29 (18) |
N2—C1—C2 | 117.4 (2) | C23—C16—H16 | 107.8 |
C7—C2—C3 | 118.3 (3) | C17—C16—H16 | 107.8 |
C7—C2—C1 | 121.9 (2) | C9—C16—H16 | 107.8 |
C3—C2—C1 | 119.8 (2) | C18—C17—C22 | 118.6 (2) |
C4—C3—C2 | 120.6 (3) | C18—C17—C16 | 121.6 (2) |
C4—C3—H3 | 119.7 | C22—C17—C16 | 119.8 (2) |
C2—C3—H3 | 119.7 | C17—C18—C19 | 120.7 (3) |
C5—C4—C3 | 120.1 (3) | C17—C18—H18 | 119.7 |
C5—C4—H4 | 119.9 | C19—C18—H18 | 119.7 |
C3—C4—H4 | 119.9 | C20—C19—C18 | 120.1 (3) |
C6—C5—C4 | 120.2 (3) | C20—C19—H19 | 119.9 |
C6—C5—H5 | 119.9 | C18—C19—H19 | 119.9 |
C4—C5—H5 | 119.9 | C19—C20—C21 | 120.1 (3) |
C5—C6—C7 | 120.3 (3) | C19—C20—H20 | 120.0 |
C5—C6—H6 | 119.9 | C21—C20—H20 | 120.0 |
C7—C6—H6 | 119.9 | C20—C21—C22 | 120.5 (3) |
C6—C7—C2 | 120.4 (3) | C20—C21—H21 | 119.8 |
C6—C7—H7 | 119.8 | C22—C21—H21 | 119.8 |
C2—C7—H7 | 119.8 | C17—C22—C21 | 120.0 (3) |
C1—C8—C9 | 126.8 (2) | C17—C22—H22 | 120.0 |
C1—C8—Se1 | 109.41 (16) | C21—C22—H22 | 120.0 |
C9—C8—Se1 | 123.43 (17) | O1—C23—O2 | 125.1 (2) |
C10—C9—C8 | 110.02 (17) | O1—C23—C16 | 124.6 (3) |
C10—C9—C16 | 112.41 (17) | O2—C23—C16 | 110.3 (2) |
C8—C9—C16 | 112.08 (18) | C25—C24—O2 | 110.2 (3) |
C10—C9—H9 | 107.4 | C25—C24—H24A | 109.6 |
C8—C9—H9 | 107.4 | O2—C24—H24A | 109.6 |
C16—C9—H9 | 107.4 | C25—C24—H24B | 109.6 |
C15—C10—C11 | 117.4 (2) | O2—C24—H24B | 109.6 |
C15—C10—C9 | 122.1 (2) | H24A—C24—H24B | 108.1 |
C11—C10—C9 | 120.5 (2) | C24—C25—H25A | 109.5 |
C12—C11—C10 | 121.1 (2) | C24—C25—H25B | 109.5 |
C12—C11—H11 | 119.4 | H25A—C25—H25B | 109.5 |
C10—C11—H11 | 119.4 | C24—C25—H25C | 109.5 |
C11—C12—C13 | 120.5 (2) | H25A—C25—H25C | 109.5 |
C11—C12—H12 | 119.8 | H25B—C25—H25C | 109.5 |
C13—C12—H12 | 119.8 | O3—C26—H26A | 109.5 |
O3—C13—C14 | 123.8 (3) | O3—C26—H26B | 109.5 |
O3—C13—C12 | 117.1 (2) | H26A—C26—H26B | 109.5 |
C14—C13—C12 | 119.2 (2) | O3—C26—H26C | 109.5 |
C15—C14—C13 | 119.6 (2) | H26A—C26—H26C | 109.5 |
C15—C14—H14 | 120.2 | H26B—C26—H26C | 109.5 |
C13—C14—H14 | 120.2 | N2—N1—Se1 | 110.86 (15) |
C14—C15—C10 | 122.1 (2) | N1—N2—C1 | 117.6 (2) |
C14—C15—H15 | 118.9 | C23—O2—C24 | 119.5 (3) |
C10—C15—H15 | 118.9 | C13—O3—C26 | 117.4 (2) |
C23—C16—C17 | 110.84 (18) | C8—Se1—N1 | 87.29 (10) |
C8—C1—C2—C7 | −51.0 (4) | C9—C10—C15—C14 | 179.68 (19) |
N2—C1—C2—C7 | 131.4 (2) | C10—C9—C16—C23 | −173.75 (19) |
C8—C1—C2—C3 | 129.9 (3) | C8—C9—C16—C23 | −49.2 (3) |
N2—C1—C2—C3 | −47.6 (3) | C10—C9—C16—C17 | 62.2 (2) |
C7—C2—C3—C4 | 1.3 (4) | C8—C9—C16—C17 | −173.29 (19) |
C1—C2—C3—C4 | −179.6 (2) | C23—C16—C17—C18 | −60.5 (3) |
C2—C3—C4—C5 | 0.3 (5) | C9—C16—C17—C18 | 63.8 (3) |
C3—C4—C5—C6 | −1.2 (5) | C23—C16—C17—C22 | 119.2 (3) |
C4—C5—C6—C7 | 0.4 (5) | C9—C16—C17—C22 | −116.6 (2) |
C5—C6—C7—C2 | 1.2 (4) | C22—C17—C18—C19 | 0.0 (4) |
C3—C2—C7—C6 | −2.1 (4) | C16—C17—C18—C19 | 179.6 (2) |
C1—C2—C7—C6 | 178.9 (2) | C17—C18—C19—C20 | −0.3 (4) |
N2—C1—C8—C9 | 173.3 (2) | C18—C19—C20—C21 | 0.8 (5) |
C2—C1—C8—C9 | −4.3 (4) | C19—C20—C21—C22 | −1.1 (5) |
N2—C1—C8—Se1 | 0.4 (3) | C18—C17—C22—C21 | −0.3 (4) |
C2—C1—C8—Se1 | −177.27 (19) | C16—C17—C22—C21 | −179.9 (3) |
C1—C8—C9—C10 | −91.0 (3) | C20—C21—C22—C17 | 0.8 (5) |
Se1—C8—C9—C10 | 81.0 (2) | C17—C16—C23—O1 | 78.4 (3) |
C1—C8—C9—C16 | 143.1 (2) | C9—C16—C23—O1 | −46.0 (3) |
Se1—C8—C9—C16 | −44.8 (3) | C17—C16—C23—O2 | −101.3 (2) |
C8—C9—C10—C15 | −74.9 (3) | C9—C16—C23—O2 | 134.35 (19) |
C16—C9—C10—C15 | 50.8 (3) | Se1—N1—N2—C1 | −0.1 (3) |
C8—C9—C10—C11 | 103.6 (2) | C8—C1—N2—N1 | −0.2 (3) |
C16—C9—C10—C11 | −130.7 (2) | C2—C1—N2—N1 | 177.7 (2) |
C15—C10—C11—C12 | −1.4 (3) | O1—C23—O2—C24 | 2.0 (4) |
C9—C10—C11—C12 | −179.9 (2) | C16—C23—O2—C24 | −178.4 (2) |
C10—C11—C12—C13 | 0.2 (4) | C25—C24—O2—C23 | 123.3 (3) |
C11—C12—C13—O3 | −179.3 (2) | C14—C13—O3—C26 | 5.4 (3) |
C11—C12—C13—C14 | 1.2 (3) | C12—C13—O3—C26 | −174.0 (2) |
O3—C13—C14—C15 | 179.1 (2) | C1—C8—Se1—N1 | −0.32 (18) |
C12—C13—C14—C15 | −1.5 (3) | C9—C8—Se1—N1 | −173.5 (2) |
C13—C14—C15—C10 | 0.3 (3) | N2—N1—Se1—C8 | 0.2 (2) |
C11—C10—C15—C14 | 1.1 (3) |
D—H···A | D—H | H···A | D···A | D—H···A |
C14—H14···N1i | 0.93 | 2.57 | 3.420 (3) | 152 |
C12—H12···Cg4ii | 0.96 | 2.81 | 3.673 (3) | 154 |
C24—H24A···Cg3iii | 0.96 | 2.80 | 3.580 (3) | 138 |
Symmetry codes: (i) −x+2, y−1/2, −z+1/2; (ii) x, −y+1/2, z+1/2; (iii) x, −y+1/2, z−1/2. |
Experimental details
Crystal data | |
Chemical formula | C26H24N2O3Se |
Mr | 491.43 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 293 |
a, b, c (Å) | 11.8187 (4), 12.8241 (5), 16.1837 (6) |
β (°) | 105.280 (2) |
V (Å3) | 2366.16 (15) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 1.62 |
Crystal size (mm) | 0.20 × 0.15 × 0.15 |
Data collection | |
Diffractometer | Bruker SMART APEXII area-detector |
Absorption correction | Multi-scan (SADABS; Bruker, 2008) |
Tmin, Tmax | 0.748, 0.785 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 22954, 5918, 3015 |
Rint | 0.046 |
(sin θ/λ)max (Å−1) | 0.669 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.038, 0.108, 0.99 |
No. of reflections | 5918 |
No. of parameters | 291 |
No. of restraints | 2 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.24, −0.28 |
Computer programs: APEX2 (Bruker, 2008), SAINT (Bruker, 2008), SHELXS97 (Sheldrick, 2008), ORTEP-3 (Farrugia, 1997), SHELXL97 (Sheldrick, 2008) and PLATON (Spek, 2009).
D—H···A | D—H | H···A | D···A | D—H···A |
C14—H14···N1i | 0.93 | 2.57 | 3.420 (3) | 151.8 |
C12—H12···Cg4ii | 0.96 | 2.81 | 3.673 (3) | 154 |
C24—H24A···Cg3iii | 0.96 | 2.80 | 3.580 (3) | 138 |
Symmetry codes: (i) −x+2, y−1/2, −z+1/2; (ii) x, −y+1/2, z+1/2; (iii) x, −y+1/2, z−1/2. |
Acknowledgements
The authors thank TBI consultancy, University of Madras, India, for the data collection.
References
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This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.
Selenium containing compounds, like 1,2,3-selenadiazoles are of increasing interest because of their chemical properties and biological applications such as anti-fungal (Kuroda et al., 2001), anti-bacterial (El-Kashef et al., 1986), anti-microbial (El-Bahaie et al., 1990), anti-cancer (Plano et al., 2010) and insecticidal (Padmavathi et al., 2002) activities. In view of the growing importance of selenium containing compounds, the crystal structure of the title compound has been carried out.
The ORTEP plot of the molecule is shown in Fig. 1. The selenadiazol ring is planar(maximum deviation -0.002 (2) Å). The dihedral angle between the selenadiazol ring and the attached phenyl ring(C2—C7) is 49.00 (13)°. The propanoate group assumes an extended conformation which can be seen from the torsion angle (C16—C23—O1—C24) value of 178.4 (2)°. The methoxy group lies in the plane of the phenyl ring (C10—C15) and twisted away with propanate group & phenyl ring (C17—C22) at angles of 8.21 (12)° & 68.11 (12)°, respectively. The packing of the molecules viewed down a axis is shown in Fig. 2. The molecules are stabilized by C—H···N and C—H···π types of intermolecular interactions in addition to van der Waals forces.