Literature DB >> 21587999

3-{2-[2-(Diphenyl-methyl-ene)hydrazin-yl]thia-zol-4-yl}-2H-chromen-2-one.

Afsheen Arshad, Hasnah Osman, Kit Lam Chan, Chin Sing Yeap, Hoong-Kun Fun.   

Abstract

In the title compound, C(25)H(17)N(3)O(2)S, the coumarin ring system is essentially planar with a maximum deviation of 0.019 (2) Å. A weak intra-molecular C-H⋯O hydrogen bond stabilizes the mol-ecular structure, so that the coumarin plane is approximately coplanar with the thia-zole ring, making a dihedral angle of 2.5 (10)°. The two phenyl rings are nearly perpendicular to each other, with a dihedral angle of 81.44 (12)°. In the crystal structure, the mol-ecules are linked into an infinite chain along the b axis by inter-molecular C-H⋯O hydrogen bonds. Weak C-H⋯π inter-actions are observed between the chains.

Entities:  

Year:  2010        PMID: 21587999      PMCID: PMC3007000          DOI: 10.1107/S1600536810023627

Source DB:  PubMed          Journal:  Acta Crystallogr Sect E Struct Rep Online        ISSN: 1600-5368


Related literature

For applications of coumarin derivatives, see: Tassies et al. (2002 ▶); Laffitte et al. (2002 ▶); Weber et al. (1998 ▶); Finn et al. (2004 ▶); Kimura et al. (1985 ▶). For applications of amino­thia­zoles derivatives, see: Hiremath et al. (1992 ▶); Karah et al. (1998 ▶); Jayashree et al. (2005 ▶). For related structures, see: Arshad, Osman, Chan et al. (2010a ▶,b ▶); Arshad, Osman, Lam et al. (2010 ▶). For the stability of the temperature controller used for the data collection, see: Cosier & Glazer (1986 ▶). The syntheses of benzophenone thio­semicarbazone and 3-(ω-bromo­acet­yl)coumarin are described by Lobana et al. (2006 ▶) and Siddiqui et al. (2009 ▶), respectively.

Experimental

Crystal data

C25H17N3O2S M = 423.48 Monoclinic, a = 13.8705 (18) Å b = 12.9101 (17) Å c = 11.8534 (16) Å β = 107.563 (2)° V = 2023.6 (5) Å3 Z = 4 Mo Kα radiation μ = 0.19 mm−1 T = 100 K 0.28 × 0.13 × 0.04 mm

Data collection

Bruker APEXII DUO CCD area-detector diffractometer Absorption correction: multi-scan (SADABS; Bruker, 2009 ▶) T min = 0.949, T max = 0.993 17920 measured reflections 4181 independent reflections 2909 reflections with I > 2σ(I) R int = 0.067

Refinement

R[F 2 > 2σ(F 2)] = 0.045 wR(F 2) = 0.125 S = 1.04 4181 reflections 284 parameters H atoms treated by a mixture of independent and constrained refinement Δρmax = 0.24 e Å−3 Δρmin = −0.32 e Å−3 Data collection: APEX2 (Bruker, 2009 ▶); cell refinement: SAINT (Bruker, 2009 ▶); data reduction: SAINT; program(s) used to solve structure: SHELXTL (Sheldrick, 2008 ▶); program(s) used to refine structure: SHELXTL; molecular graphics: SHELXTL; software used to prepare material for publication: SHELXTL and PLATON (Spek, 2009 ▶). Crystal structure: contains datablocks global, I. DOI: 10.1107/S1600536810023627/is2564sup1.cif Structure factors: contains datablocks I. DOI: 10.1107/S1600536810023627/is2564Isup2.hkl Additional supplementary materials: crystallographic information; 3D view; checkCIF report
C25H17N3O2SF(000) = 880
Mr = 423.48Dx = 1.390 Mg m3
Monoclinic, P21/cMo Kα radiation, λ = 0.71073 Å
Hall symbol: -P 2ybcCell parameters from 2695 reflections
a = 13.8705 (18) Åθ = 2.2–25.7°
b = 12.9101 (17) ŵ = 0.19 mm1
c = 11.8534 (16) ÅT = 100 K
β = 107.563 (2)°Plate, brown
V = 2023.6 (5) Å30.28 × 0.13 × 0.04 mm
Z = 4
Bruker APEXII DUO CCD area-detector diffractometer4181 independent reflections
Radiation source: fine-focus sealed tube2909 reflections with I > 2σ(I)
graphiteRint = 0.067
φ and ω scansθmax = 26.5°, θmin = 2.2°
Absorption correction: multi-scan (SADABS; Bruker, 2009)h = −17→17
Tmin = 0.949, Tmax = 0.993k = −16→16
17920 measured reflectionsl = −14→14
Refinement on F2Primary atom site location: structure-invariant direct methods
Least-squares matrix: fullSecondary atom site location: difference Fourier map
R[F2 > 2σ(F2)] = 0.045Hydrogen site location: inferred from neighbouring sites
wR(F2) = 0.125H atoms treated by a mixture of independent and constrained refinement
S = 1.04w = 1/[σ2(Fo2) + (0.0488P)2 + 1.1918P] where P = (Fo2 + 2Fc2)/3
4181 reflections(Δ/σ)max < 0.001
284 parametersΔρmax = 0.24 e Å3
0 restraintsΔρmin = −0.32 e Å3
Experimental. The crystal was placed in the cold stream of an Oxford Cryosystems Cobra open-flow nitrogen cryostat (Cosier & Glazer, 1986) operating at 100.0 (1) K.
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.
xyzUiso*/Ueq
S10.27268 (5)0.29137 (5)0.91250 (6)0.02688 (18)
O10.03690 (14)0.49303 (13)1.21227 (16)0.0322 (5)
O20.12420 (15)0.53063 (13)1.09019 (17)0.0375 (5)
N10.18366 (15)0.20621 (15)1.05262 (17)0.0216 (4)
N20.25985 (16)0.08768 (16)0.95524 (19)0.0257 (5)
N30.32315 (15)0.07961 (15)0.88597 (17)0.0230 (5)
C10.09314 (19)0.46244 (19)1.1393 (2)0.0267 (6)
C2−0.00360 (19)0.42446 (19)1.2744 (2)0.0265 (6)
C3−0.0574 (2)0.4642 (2)1.3458 (3)0.0377 (7)
H3A−0.06720.53521.34990.045*
C4−0.0961 (2)0.3960 (2)1.4110 (3)0.0355 (7)
H4A−0.13130.42181.46040.043*
C5−0.08363 (19)0.2904 (2)1.4042 (2)0.0274 (6)
H5A−0.11040.24561.44850.033*
C6−0.03123 (17)0.25172 (19)1.3315 (2)0.0225 (5)
H6A−0.02310.18051.32660.027*
C70.00990 (17)0.31838 (18)1.2649 (2)0.0209 (5)
C80.06701 (18)0.28439 (18)1.1895 (2)0.0213 (5)
H8A0.07600.21371.18170.026*
C90.10832 (17)0.35054 (18)1.1294 (2)0.0212 (5)
C100.16787 (18)0.31334 (18)1.0546 (2)0.0209 (5)
C110.20939 (19)0.37041 (19)0.9838 (2)0.0268 (6)
H11A0.20420.44200.97530.032*
C120.23598 (18)0.18608 (18)0.9809 (2)0.0225 (5)
C130.35407 (18)−0.01140 (18)0.8675 (2)0.0210 (5)
C140.42271 (18)−0.01483 (18)0.7927 (2)0.0213 (5)
C150.42459 (18)0.06486 (19)0.7143 (2)0.0232 (5)
H15A0.37840.11890.70370.028*
C160.49430 (19)0.0646 (2)0.6520 (2)0.0261 (6)
H16A0.49490.11840.60000.031*
C170.5631 (2)−0.0155 (2)0.6670 (2)0.0288 (6)
H17A0.6097−0.01560.62470.035*
C180.56302 (19)−0.0957 (2)0.7446 (2)0.0284 (6)
H18A0.6098−0.14920.75490.034*
C190.49287 (18)−0.09584 (19)0.8069 (2)0.0237 (5)
H19A0.4923−0.15000.85850.028*
C200.33051 (17)−0.11039 (18)0.9191 (2)0.0210 (5)
C210.36721 (19)−0.12891 (19)1.0402 (2)0.0268 (6)
H21A0.4018−0.07701.09070.032*
C220.3526 (2)−0.2240 (2)1.0859 (2)0.0288 (6)
H22A0.3778−0.23601.16690.035*
C230.30028 (19)−0.3019 (2)1.0112 (2)0.0273 (6)
H23A0.2916−0.36641.04170.033*
C240.26132 (19)−0.28293 (19)0.8913 (2)0.0282 (6)
H24A0.2250−0.33420.84110.034*
C250.27632 (18)−0.18767 (19)0.8457 (2)0.0238 (5)
H25A0.2498−0.17530.76490.029*
H1N20.2549 (19)0.034 (2)1.003 (2)0.027 (7)*
U11U22U33U12U13U23
S10.0327 (4)0.0239 (3)0.0311 (4)−0.0054 (3)0.0203 (3)−0.0020 (3)
O10.0445 (11)0.0185 (9)0.0433 (11)0.0005 (8)0.0277 (10)−0.0013 (8)
O20.0531 (13)0.0196 (9)0.0524 (12)−0.0013 (9)0.0350 (11)0.0020 (9)
N10.0227 (10)0.0206 (10)0.0244 (11)0.0010 (9)0.0116 (9)−0.0006 (9)
N20.0305 (12)0.0211 (11)0.0344 (12)0.0012 (9)0.0230 (11)0.0009 (10)
N30.0245 (11)0.0237 (11)0.0260 (11)−0.0008 (9)0.0153 (10)−0.0015 (9)
C10.0319 (14)0.0208 (13)0.0312 (14)0.0010 (11)0.0153 (13)−0.0020 (11)
C20.0302 (14)0.0219 (13)0.0313 (14)−0.0006 (11)0.0153 (12)0.0014 (11)
C30.0533 (19)0.0200 (13)0.0517 (18)0.0034 (13)0.0336 (16)−0.0029 (13)
C40.0405 (16)0.0312 (15)0.0456 (17)0.0047 (12)0.0292 (15)−0.0048 (13)
C50.0262 (13)0.0299 (14)0.0304 (14)−0.0022 (11)0.0150 (12)0.0003 (11)
C60.0223 (12)0.0202 (12)0.0254 (13)−0.0009 (10)0.0077 (11)−0.0005 (10)
C70.0182 (12)0.0224 (13)0.0211 (12)−0.0005 (10)0.0046 (10)−0.0008 (10)
C80.0208 (12)0.0188 (12)0.0227 (12)0.0003 (10)0.0044 (11)−0.0027 (10)
C90.0184 (12)0.0222 (13)0.0220 (12)−0.0015 (10)0.0048 (11)−0.0036 (10)
C100.0217 (12)0.0184 (12)0.0241 (12)−0.0017 (10)0.0091 (11)−0.0020 (10)
C110.0329 (14)0.0202 (13)0.0321 (14)−0.0029 (11)0.0172 (13)−0.0030 (11)
C120.0224 (13)0.0215 (13)0.0262 (13)−0.0012 (10)0.0113 (11)−0.0002 (10)
C130.0209 (12)0.0231 (13)0.0210 (12)−0.0017 (10)0.0094 (11)−0.0010 (10)
C140.0237 (13)0.0222 (13)0.0205 (12)−0.0039 (10)0.0106 (11)−0.0051 (10)
C150.0230 (13)0.0269 (13)0.0182 (12)0.0006 (11)0.0040 (11)−0.0019 (10)
C160.0301 (14)0.0316 (14)0.0182 (13)−0.0013 (11)0.0096 (12)0.0012 (11)
C170.0310 (14)0.0332 (15)0.0287 (14)−0.0007 (12)0.0189 (13)−0.0057 (12)
C180.0296 (14)0.0305 (14)0.0298 (14)0.0035 (11)0.0161 (13)−0.0047 (11)
C190.0263 (13)0.0237 (13)0.0240 (13)−0.0030 (10)0.0119 (12)−0.0039 (10)
C200.0196 (12)0.0209 (12)0.0269 (13)0.0007 (10)0.0137 (11)−0.0015 (10)
C210.0285 (14)0.0250 (13)0.0283 (14)−0.0027 (11)0.0106 (12)−0.0017 (11)
C220.0309 (14)0.0321 (15)0.0223 (13)0.0011 (11)0.0062 (12)0.0043 (11)
C230.0279 (14)0.0249 (13)0.0311 (14)−0.0021 (11)0.0120 (12)0.0040 (11)
C240.0296 (14)0.0256 (14)0.0312 (15)−0.0059 (11)0.0119 (12)−0.0043 (11)
C250.0227 (13)0.0306 (14)0.0174 (12)−0.0039 (11)0.0052 (11)−0.0025 (10)
S1—C111.724 (2)C10—C111.368 (3)
S1—C121.736 (2)C11—H11A0.9300
O1—C21.375 (3)C13—C141.485 (3)
O1—C11.386 (3)C13—C201.495 (3)
O2—C11.205 (3)C14—C151.392 (3)
N1—C121.300 (3)C14—C191.404 (3)
N1—C101.402 (3)C15—C161.382 (3)
N2—C121.370 (3)C15—H15A0.9300
N2—N31.375 (2)C16—C171.382 (3)
N2—H1N20.91 (3)C16—H16A0.9300
N3—C131.292 (3)C17—C181.385 (3)
C1—C91.470 (3)C17—H17A0.9300
C2—C31.385 (3)C18—C191.388 (3)
C2—C71.391 (3)C18—H18A0.9300
C3—C41.382 (4)C19—H19A0.9300
C3—H3A0.9300C20—C251.387 (3)
C4—C51.380 (4)C20—C211.391 (3)
C4—H4A0.9300C21—C221.382 (3)
C5—C61.378 (3)C21—H21A0.9300
C5—H5A0.9300C22—C231.391 (4)
C6—C71.400 (3)C22—H22A0.9300
C6—H6A0.9300C23—C241.382 (4)
C7—C81.430 (3)C23—H23A0.9300
C8—C91.346 (3)C24—C251.384 (3)
C8—H8A0.9300C24—H24A0.9300
C9—C101.464 (3)C25—H25A0.9300
C11—S1—C1288.29 (11)N1—C12—S1116.69 (18)
C2—O1—C1123.27 (19)N2—C12—S1119.88 (16)
C12—N1—C10109.20 (19)N3—C13—C14115.7 (2)
C12—N2—N3116.31 (19)N3—C13—C20125.68 (19)
C12—N2—H1N2119.7 (16)C14—C13—C20118.54 (19)
N3—N2—H1N2119.8 (16)C15—C14—C19118.6 (2)
C13—N3—N2118.33 (19)C15—C14—C13121.4 (2)
O2—C1—O1116.4 (2)C19—C14—C13119.8 (2)
O2—C1—C9126.8 (2)C16—C15—C14120.8 (2)
O1—C1—C9116.8 (2)C16—C15—H15A119.6
O1—C2—C3118.1 (2)C14—C15—H15A119.6
O1—C2—C7120.3 (2)C17—C16—C15120.0 (2)
C3—C2—C7121.6 (2)C17—C16—H16A120.0
C4—C3—C2118.5 (2)C15—C16—H16A120.0
C4—C3—H3A120.7C16—C17—C18120.4 (2)
C2—C3—H3A120.7C16—C17—H17A119.8
C5—C4—C3121.3 (2)C18—C17—H17A119.8
C5—C4—H4A119.3C17—C18—C19119.7 (2)
C3—C4—H4A119.3C17—C18—H18A120.1
C6—C5—C4119.6 (2)C19—C18—H18A120.1
C6—C5—H5A120.2C18—C19—C14120.5 (2)
C4—C5—H5A120.2C18—C19—H19A119.8
C5—C6—C7120.8 (2)C14—C19—H19A119.8
C5—C6—H6A119.6C25—C20—C21119.0 (2)
C7—C6—H6A119.6C25—C20—C13120.1 (2)
C2—C7—C6118.2 (2)C21—C20—C13120.8 (2)
C2—C7—C8117.8 (2)C22—C21—C20120.4 (2)
C6—C7—C8124.1 (2)C22—C21—H21A119.8
C9—C8—C7122.7 (2)C20—C21—H21A119.8
C9—C8—H8A118.6C21—C22—C23120.2 (2)
C7—C8—H8A118.6C21—C22—H22A119.9
C8—C9—C10121.4 (2)C23—C22—H22A119.9
C8—C9—C1119.2 (2)C24—C23—C22119.6 (2)
C10—C9—C1119.4 (2)C24—C23—H23A120.2
C11—C10—N1115.1 (2)C22—C23—H23A120.2
C11—C10—C9127.9 (2)C23—C24—C25120.1 (2)
N1—C10—C9116.96 (19)C23—C24—H24A120.0
C10—C11—S1110.66 (18)C25—C24—H24A120.0
C10—C11—H11A124.7C24—C25—C20120.7 (2)
S1—C11—H11A124.7C24—C25—H25A119.6
N1—C12—N2123.4 (2)C20—C25—H25A119.6
C12—N2—N3—C13174.6 (2)C10—N1—C12—N2−176.8 (2)
C2—O1—C1—O2−179.9 (2)C10—N1—C12—S11.2 (3)
C2—O1—C1—C90.3 (4)N3—N2—C12—N1−174.4 (2)
C1—O1—C2—C3179.2 (3)N3—N2—C12—S17.6 (3)
C1—O1—C2—C7−0.7 (4)C11—S1—C12—N1−1.5 (2)
O1—C2—C3—C4−178.3 (3)C11—S1—C12—N2176.6 (2)
C7—C2—C3—C41.6 (4)N2—N3—C13—C14−179.6 (2)
C2—C3—C4—C5−1.1 (5)N2—N3—C13—C20−2.6 (4)
C3—C4—C5—C60.2 (4)N3—C13—C14—C15−22.3 (3)
C4—C5—C6—C70.3 (4)C20—C13—C14—C15160.5 (2)
O1—C2—C7—C6178.9 (2)N3—C13—C14—C19152.8 (2)
C3—C2—C7—C6−1.0 (4)C20—C13—C14—C19−24.5 (3)
O1—C2—C7—C80.2 (4)C19—C14—C15—C16−0.2 (4)
C3—C2—C7—C8−179.6 (3)C13—C14—C15—C16174.9 (2)
C5—C6—C7—C20.0 (4)C14—C15—C16—C170.1 (4)
C5—C6—C7—C8178.6 (2)C15—C16—C17—C18−0.3 (4)
C2—C7—C8—C90.7 (4)C16—C17—C18—C190.5 (4)
C6—C7—C8—C9−177.9 (2)C17—C18—C19—C14−0.6 (4)
C7—C8—C9—C10178.9 (2)C15—C14—C19—C180.5 (4)
C7—C8—C9—C1−1.1 (4)C13—C14—C19—C18−174.7 (2)
O2—C1—C9—C8−179.1 (3)N3—C13—C20—C25117.4 (3)
O1—C1—C9—C80.6 (4)C14—C13—C20—C25−65.7 (3)
O2—C1—C9—C100.9 (4)N3—C13—C20—C21−66.3 (3)
O1—C1—C9—C10−179.4 (2)C14—C13—C20—C21110.6 (3)
C12—N1—C10—C11−0.1 (3)C25—C20—C21—C222.0 (3)
C12—N1—C10—C9178.9 (2)C13—C20—C21—C22−174.3 (2)
C8—C9—C10—C11176.1 (3)C20—C21—C22—C23−0.5 (4)
C1—C9—C10—C11−3.9 (4)C21—C22—C23—C24−1.3 (4)
C8—C9—C10—N1−2.8 (3)C22—C23—C24—C251.4 (4)
C1—C9—C10—N1177.2 (2)C23—C24—C25—C200.1 (4)
N1—C10—C11—S1−1.0 (3)C21—C20—C25—C24−1.9 (3)
C9—C10—C11—S1−179.9 (2)C13—C20—C25—C24174.5 (2)
C12—S1—C11—C101.3 (2)
Cg1 and Cg2 are the centroids of the C14–C19 and C2–C7 benzene rings, respectively.
D—H···AD—HH···AD···AD—H···A
C6—H6A···O1i0.932.463.377 (3)168
C11—H11A···O20.932.302.857 (3)118
C21—H21A···Cg1ii0.932.493.387 (3)162
C24—H24A···Cg2iii0.932.783.536 (3)139
Table 1

Hydrogen-bond geometry (Å, °)

Cg1 and Cg2 are the centroids of the C14–C19 and C2–C7 benzene rings, respectively.

D—H⋯AD—HH⋯ADAD—H⋯A
C6—H6A⋯O1i0.932.463.377 (3)168
C11—H11A⋯O20.932.302.857 (3)118
C21—H21ACg1ii0.932.493.387 (3)162
C24—H24ACg2iii0.932.783.536 (3)139

Symmetry codes: (i) ; (ii) ; (iii) .

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Authors:  Daniel Lafitte; Valérie Lamour; Philippe O Tsvetkov; Alexander A Makarov; Michel Klich; Pierre Deprez; Dino Moras; Claudette Briand; Robert Gilli
Journal:  Biochemistry       Date:  2002-06-11       Impact factor: 3.162

2.  A short history of SHELX.

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Journal:  Acta Crystallogr A       Date:  2007-12-21       Impact factor: 2.290

3.  Antitumor-activities of coumarin, 7-hydroxy-coumarin and its glucuronide in several human tumor cell lines.

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Journal:  Res Commun Mol Pathol Pharmacol       Date:  1998-02

4.  A study of the role of cell cycle events mediating the action of coumarin derivatives in human malignant melanoma cells.

Authors:  Gregory J Finn; Bernadette S Creaven; Denise A Egan
Journal:  Cancer Lett       Date:  2004-10-08       Impact factor: 8.679

5.  Synthesis and structure-activity relationships of 3-hydrazono-1H-2-indolinones with antituberculosis activity.

Authors:  N Karah; N Terzioĝlu; A Gürsoy
Journal:  Arzneimittelforschung       Date:  1998-07

6.  3-{2-[2-(3-Hy-droxy-benzyl-idene)hydrazin-1-yl]-1,3-thia-zol-4-yl}-2H-chromen-2-one hemihydrate.

Authors:  Afsheen Arshad; Hasnah Osman; Kit Lam Chan; Jia Hao Goh; Hoong-Kun Fun
Journal:  Acta Crystallogr Sect E Struct Rep Online       Date:  2010-05-29

7.  Synthesis of some new coumarin incorporated thiazolyl semicarbazones as anticonvulsants.

Authors:  Nadeem Siddiqui; M Faiz Arshad; Suroor A Khan
Journal:  Acta Pol Pharm       Date:  2009 Mar-Apr       Impact factor: 0.330

8.  Inhibition of the formation of 5-hydroxy-6,8,11,14-eicosatetraenoic acid from arachidonic acid in polymorphonuclear leukocytes by various coumarins.

Authors:  Y Kimura; H Okuda; S Arichi; K Baba; M Kozawa
Journal:  Biochim Biophys Acta       Date:  1985-04-25

9.  (E)-1-[1-(6-Bromo-2-oxo-2H-chromen-3-yl)ethyl-idene]thio-semicarbazide.

Authors:  Afsheen Arshad; Hasnah Osman; Kit Lam Chan; Jia Hao Goh; Hoong-Kun Fun
Journal:  Acta Crystallogr Sect E Struct Rep Online       Date:  2010-05-29

10.  3-{2-[2-(2-Fluoro-benzyl-idene)hydrazin-yl]-1,3-thia-zol-4-yl}-2H-chromen-2-one.

Authors:  Afsheen Arshad; Hasnah Osman; Chan Kit Lam; Ching Kheng Quah; Hoong-Kun Fun
Journal:  Acta Crystallogr Sect E Struct Rep Online       Date:  2010-05-26
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  2 in total

1.  Microwave-assisted synthesis and antioxidant properties of hydrazinyl thiazolyl coumarin derivatives.

Authors:  Hasnah Osman; Afsheen Arshad; Chan Kit Lam; Mark C Bagley
Journal:  Chem Cent J       Date:  2012-04-17       Impact factor: 4.215

2.  Crystal structure of (Z)-3-{3-(4-chloro-phen-yl)-2-[(4-chloro-phen-yl)imino]-2,3-di-hydro-thia-zol-4-yl}-2H-chromen-2-one.

Authors:  M Kayalvizhi; G Vasuki; R Raj Kumar; V Rajeswar Rao
Journal:  Acta Crystallogr Sect E Struct Rep Online       Date:  2014-11-19
  2 in total

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