organic compounds\(\def\hfill{\hskip 5em}\def\hfil{\hskip 3em}\def\eqno#1{\hfil {#1}}\)

Journal logoCRYSTALLOGRAPHIC
COMMUNICATIONS
ISSN: 2056-9890

1-{[3-(2-Chloro-3,3,3-tri­fluoro­prop-1-en­yl)-2,2-di­methyl­cyclo­propan-1-yl]carbon­yl}-3-(methyl­sulfon­yl)imidazolidin-2-one

aCollege of Biology and Environmental Engineering, Zhejiang Shuren University, Hangzhou 310015, People's Republic of China, bCollege of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, People's Republic of China, and cDepartment of Pharmacy, Zhejiang Medical College, Hangzhou 310053, People's Republic of China
*Correspondence e-mail: rgw@zjut.edu.cn

(Received 7 May 2012; accepted 10 May 2012; online 16 May 2012)

In the title mol­ecule, C13H16ClF3N2O4S, the imidazolidine ring is approximately planar, the largest deviation from this plane being 0.025 (3) Å. The cyclo­propane ring forms a dihedral angle of 64.1 (2)° with the imidazolidine ring. In the crystal, C—H⋯O hydrogen bonds are observed.

Related literature

For the biological activities of pyrethroids, see: Chen & Yu (1991[Chen, F. H. & Yu, Z. S. (1991). Chem. J. Chin. Univ. 12, 485-487.]); Sun et al. (2008[Sun, N. B., Shen, D. L., Tan, C. X., Weng, J. Q., Cong, S. & Fu, H. (2008). Chin. J. Org. Chem. 28, 713-717.]). For the crystal structures of similar compounds, see: Sun, Shen, Rao et al. (2006[Sun, N.-B., Shen, D.-L., Rao, G.-W., Tan, C.-X. & Weng, J.-Q. (2006). Acta Cryst. E62, o2123-o2124.]); Sun, Shen, Zheng et al. (2006[Sun, N.-B., Shen, D.-L., Zheng, R.-H., Tan, C.-X. & Weng, J.-Q. (2006). Acta Cryst. E62, o5679-o5680.]). For the synthesis of the title compound, see: Sun et al. (2008[Sun, N. B., Shen, D. L., Tan, C. X., Weng, J. Q., Cong, S. & Fu, H. (2008). Chin. J. Org. Chem. 28, 713-717.]).

[Scheme 1]

Experimental

Crystal data
  • C13H16ClF3N2O4S

  • Mr = 388.79

  • Monoclinic, P 21 /c

  • a = 15.404 (4) Å

  • b = 9.483 (2) Å

  • c = 11.858 (3) Å

  • β = 103.464 (4)°

  • V = 1684.5 (8) Å3

  • Z = 4

  • Mo Kα radiation

  • μ = 0.40 mm−1

  • T = 298 K

  • 0.68 × 0.40 × 0.18 mm

Data collection
  • Bruker SMART CCD diffractometer

  • Absorption correction: multi-scan (SADABS; Bruker, 1997[Bruker (1997). SMART, SAINT and SADABS. Bruker AXS Inc., Madison, Wisconsin, USA.]) Tmin = 0.761, Tmax = 0.930

  • 6863 measured reflections

  • 2964 independent reflections

  • 2548 reflections with I > 2σ(I)

  • Rint = 0.022

Refinement
  • R[F2 > 2σ(F2)] = 0.062

  • wR(F2) = 0.175

  • S = 1.11

  • 2964 reflections

  • 217 parameters

  • H-atom parameters constrained

  • Δρmax = 0.57 e Å−3

  • Δρmin = −0.53 e Å−3

Table 1
Hydrogen-bond geometry (Å, °)

D—H⋯A D—H H⋯A DA D—H⋯A
C2—H2A⋯O4i 0.97 2.50 3.267 (5) 136
C3—H3A⋯O4ii 0.97 2.50 3.352 (6) 146
C13—H13C⋯O2iii 0.96 2.57 3.331 (6) 137
Symmetry codes: (i) [x, -y+{\script{1\over 2}}, z-{\script{1\over 2}}]; (ii) -x+1, -y+1, -z+1; (iii) x, y-1, z.

Data collection: SMART (Bruker, 1997[Bruker (1997). SMART, SAINT and SADABS. Bruker AXS Inc., Madison, Wisconsin, USA.]); cell refinement: SAINT (Bruker, 1997[Bruker (1997). SMART, SAINT and SADABS. Bruker AXS Inc., Madison, Wisconsin, USA.]); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008[Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.]); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008[Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.]); molecular graphics: ORTEP-3 for Windows (Farrugia, 1997[Farrugia, L. J. (1997). J. Appl. Cryst. 30, 565.]); software used to prepare material for publication: WinGX (Farrugia, 1999[Farrugia, L. J. (1999). J. Appl. Cryst. 32, 837-838.]).

Supporting information


Comment top

Pyrethroids have a high potential for biological activity with low toxicity and good environmental compatibility. They have been widely used in making pesticides (Chen & Yu, 1991; Sun et al., 2008). In a continuation of our studies of the biological activities of pyrethroids, we have obtained a colourless crystalline compound, whose structure has been confirmed by single-crystal X-ray diffraction. The crystal structures of two similar compounds have already been published (Sun, Shen, Rao et al., 2006; Sun, Shen, Zheng et al., 2006).

The molecular structure of the title compound is illustrated in Fig. 1. Atoms N1, C2, C3, N2 and C1 are approximately planar, the largest deviation from this plane being 0.025 (3) Å for atom N1. The cyclopropane ring (C5—C7) forms dihedral angles of 89.49 (22) ° and 64.07 (21) ° with the least-squares planes of the C8, C9, C6 grouping and the imidazolidine ring, respectively. In the crystal structure, intermolecular C—H···O hydrogen bonds are observed. A short intermolecular contact of O3···C3 = 3.02 Å is present.

Related literature top

For the biological activities of pyrethroids, see: Chen & Yu (1991); Sun et al. (2008). For the crystal structures of similar compounds, see: Sun, Shen, Rao et al. (2006); Sun, Shen, Zheng et al. (2006). For the synthesis of the title compound, see: Sun et al. (2008).

Experimental top

The title compound was synthesized according to the published procedure (Sun et al., 2008). A solution of the compound in ethanol was concentrated gradually at room temperature to afford colourless blocks.

Refinement top

H atoms were included in calculated positions and refined using a riding model. Csp2—H = 0.93 Å, Cmethyl—H = 0.96 Å, Cmethylene—H = 0.97 Å and Cmethine—H = 0.98 Å. Uiso(H) = xUeq(C), where x = 1.5 for methyl H and 1.2 for all other H atoms.

Computing details top

Data collection: SMART (Bruker, 1997); cell refinement: SAINT (Bruker, 1997); data reduction: SAINT (Bruker, 1997); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 1997); software used to prepare material for publication: WinGX (Farrugia, 1999).

Figures top
[Figure 1] Fig. 1. The molecular structure of the title compound, shown with 30% probability displacement ellipsoids. Hydrogen atoms are shown as spheres of arbitrary radius.
[Figure 2] Fig. 2. A portion of the crystal packing of the title compound. Hydrogen bonds are shown as dashed lines. H atoms not involved in hydrogen bonding have been omitted for clarity.
1-{[3-(2-Chloro-3,3,3-trifluoroprop-1-enyl)-2,2- dimethylcyclopropan-1-yl]carbonyl}-3-(methylsulfonyl)imidazolidin-2-one top
Crystal data top
C13H16ClF3N2O4SF(000) = 800
Mr = 388.79Dx = 1.533 Mg m3
Monoclinic, P21/cMo Kα radiation, λ = 0.71073 Å
Hall symbol: -P 2ybcCell parameters from 3411 reflections
a = 15.404 (4) Åθ = 2.7–26.7°
b = 9.483 (2) ŵ = 0.40 mm1
c = 11.858 (3) ÅT = 298 K
β = 103.464 (4)°Block, colourless
V = 1684.5 (8) Å30.68 × 0.40 × 0.18 mm
Z = 4
Data collection top
Bruker SMART CCD
diffractometer
2964 independent reflections
Radiation source: fine-focus sealed tube2548 reflections with I > 2σ(I)
Graphite monochromatorRint = 0.022
ϕ and ω scansθmax = 25.0°, θmin = 1.4°
Absorption correction: multi-scan
(SADABS; Bruker, 1997)
h = 1814
Tmin = 0.761, Tmax = 0.930k = 811
6863 measured reflectionsl = 1414
Refinement top
Refinement on F2Primary atom site location: structure-invariant direct methods
Least-squares matrix: fullSecondary atom site location: difference Fourier map
R[F2 > 2σ(F2)] = 0.062Hydrogen site location: inferred from neighbouring sites
wR(F2) = 0.175H-atom parameters constrained
S = 1.11 w = 1/[σ2(Fo2) + (0.0729P)2 + 2.4194P]
where P = (Fo2 + 2Fc2)/3
2964 reflections(Δ/σ)max < 0.001
217 parametersΔρmax = 0.57 e Å3
0 restraintsΔρmin = 0.53 e Å3
Crystal data top
C13H16ClF3N2O4SV = 1684.5 (8) Å3
Mr = 388.79Z = 4
Monoclinic, P21/cMo Kα radiation
a = 15.404 (4) ŵ = 0.40 mm1
b = 9.483 (2) ÅT = 298 K
c = 11.858 (3) Å0.68 × 0.40 × 0.18 mm
β = 103.464 (4)°
Data collection top
Bruker SMART CCD
diffractometer
2964 independent reflections
Absorption correction: multi-scan
(SADABS; Bruker, 1997)
2548 reflections with I > 2σ(I)
Tmin = 0.761, Tmax = 0.930Rint = 0.022
6863 measured reflections
Refinement top
R[F2 > 2σ(F2)] = 0.0620 restraints
wR(F2) = 0.175H-atom parameters constrained
S = 1.11Δρmax = 0.57 e Å3
2964 reflectionsΔρmin = 0.53 e Å3
217 parameters
Special details top

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.

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2) top
xyzUiso*/Ueq
F10.0849 (3)1.1070 (3)0.3133 (2)0.1095 (13)
F20.0338 (3)1.2094 (4)0.4425 (3)0.1146 (13)
F30.1607 (3)1.2571 (3)0.4218 (4)0.1126 (12)
O30.5270 (2)0.1855 (3)0.3889 (3)0.0683 (9)
O40.4640 (3)0.1833 (3)0.5579 (3)0.0778 (10)
C130.3639 (4)0.1076 (5)0.3604 (6)0.0918 (18)
H13A0.35750.12400.27900.138*
H13B0.31010.13520.38220.138*
H13C0.37490.00920.37680.138*
S0.45301 (6)0.20590 (10)0.43865 (8)0.0461 (3)
Cl10.16342 (14)1.09317 (14)0.64639 (11)0.1095 (7)
O10.3400 (2)0.4131 (3)0.5463 (2)0.0605 (8)
O20.2822 (2)0.7813 (3)0.3499 (2)0.0585 (7)
N20.34790 (19)0.5737 (3)0.4009 (2)0.0407 (7)
N10.4231 (2)0.3728 (3)0.4092 (3)0.0450 (7)
C70.1933 (2)0.7923 (3)0.5495 (3)0.0385 (7)
H70.19970.81400.63190.046*
C100.1603 (2)0.9097 (4)0.4727 (3)0.0418 (8)
H100.15070.89250.39350.050*
C60.1633 (2)0.6421 (4)0.5170 (3)0.0399 (8)
C40.2957 (2)0.6873 (4)0.4208 (3)0.0414 (8)
C10.3662 (2)0.4485 (4)0.4631 (3)0.0396 (8)
C80.1030 (3)0.6147 (4)0.3983 (3)0.0543 (10)
H8A0.11970.67590.34240.081*
H8B0.04210.63260.40070.081*
H8C0.10910.51830.37670.081*
C50.2599 (2)0.6822 (3)0.5266 (3)0.0378 (7)
H50.30180.64690.59610.045*
C120.1041 (3)1.1499 (4)0.4206 (4)0.0608 (11)
C30.3890 (3)0.5794 (4)0.3006 (3)0.0505 (9)
H3A0.42980.65840.30720.061*
H3B0.34370.58820.22880.061*
C110.1428 (3)1.0371 (4)0.5035 (3)0.0492 (9)
C20.4380 (3)0.4417 (5)0.3047 (4)0.0604 (11)
H2A0.41400.38560.23620.072*
H2B0.50120.45730.31070.072*
C90.1443 (3)0.5501 (4)0.6126 (4)0.0527 (9)
H9A0.08150.53020.59730.079*
H9B0.16240.59830.68550.079*
H9C0.17680.46330.61580.079*
Atomic displacement parameters (Å2) top
U11U22U33U12U13U23
F10.183 (4)0.078 (2)0.0565 (17)0.059 (2)0.0057 (19)0.0025 (14)
F20.117 (3)0.110 (3)0.131 (3)0.074 (2)0.059 (2)0.031 (2)
F30.130 (3)0.0571 (18)0.151 (3)0.0027 (18)0.032 (2)0.032 (2)
O30.0670 (19)0.070 (2)0.078 (2)0.0244 (15)0.0374 (16)0.0059 (15)
O40.119 (3)0.067 (2)0.0551 (18)0.0320 (19)0.0358 (18)0.0181 (15)
C130.081 (4)0.057 (3)0.132 (5)0.011 (3)0.014 (3)0.020 (3)
S0.0538 (6)0.0429 (5)0.0461 (5)0.0096 (4)0.0209 (4)0.0010 (4)
Cl10.2056 (19)0.0635 (8)0.0556 (8)0.0415 (9)0.0228 (9)0.0150 (6)
O10.087 (2)0.0494 (15)0.0611 (17)0.0175 (14)0.0496 (16)0.0161 (13)
O20.0729 (18)0.0535 (16)0.0566 (16)0.0195 (13)0.0301 (14)0.0212 (13)
N20.0455 (15)0.0409 (16)0.0417 (16)0.0047 (12)0.0223 (13)0.0068 (12)
N10.0596 (18)0.0421 (16)0.0403 (16)0.0084 (14)0.0258 (14)0.0034 (13)
C70.0461 (18)0.0357 (17)0.0349 (17)0.0016 (14)0.0119 (14)0.0058 (14)
C100.0476 (19)0.0396 (18)0.0400 (18)0.0045 (15)0.0137 (15)0.0037 (15)
C60.0441 (18)0.0354 (17)0.0434 (19)0.0008 (14)0.0162 (15)0.0036 (14)
C40.0396 (18)0.0410 (19)0.0446 (19)0.0029 (14)0.0118 (15)0.0066 (15)
C10.0443 (18)0.0407 (18)0.0377 (18)0.0016 (14)0.0175 (14)0.0009 (14)
C80.056 (2)0.050 (2)0.055 (2)0.0069 (18)0.0086 (18)0.0113 (18)
C50.0428 (18)0.0356 (17)0.0359 (17)0.0056 (14)0.0107 (14)0.0008 (13)
C120.075 (3)0.045 (2)0.066 (3)0.019 (2)0.024 (2)0.002 (2)
C30.061 (2)0.057 (2)0.043 (2)0.0081 (18)0.0295 (18)0.0089 (17)
C110.062 (2)0.041 (2)0.048 (2)0.0057 (17)0.0191 (18)0.0066 (16)
C20.072 (3)0.069 (3)0.050 (2)0.023 (2)0.036 (2)0.018 (2)
C90.061 (2)0.047 (2)0.057 (2)0.0048 (18)0.0284 (19)0.0010 (18)
Geometric parameters (Å, º) top
F1—C121.303 (5)C7—H70.9800
F2—C121.300 (5)C10—C111.308 (5)
F3—C121.337 (6)C10—H100.9300
O3—S1.414 (3)C6—C91.512 (5)
O4—S1.401 (3)C6—C51.515 (5)
C13—S1.738 (5)C6—C81.517 (5)
C13—H13A0.9600C4—C51.484 (5)
C13—H13B0.9600C8—H8A0.9600
C13—H13C0.9600C8—H8B0.9600
S—N11.663 (3)C8—H8C0.9600
Cl1—C111.734 (4)C5—H50.9800
O1—C11.197 (4)C12—C111.481 (6)
O2—C41.210 (4)C3—C21.503 (6)
N2—C11.392 (4)C3—H3A0.9700
N2—C41.397 (4)C3—H3B0.9700
N2—C31.472 (4)C2—H2A0.9700
N1—C11.397 (4)C2—H2B0.9700
N1—C21.465 (5)C9—H9A0.9600
C7—C101.453 (5)C9—H9B0.9600
C7—C61.520 (5)C9—H9C0.9600
C7—C51.532 (4)
S—C13—H13A109.5C6—C8—H8A109.5
S—C13—H13B109.5C6—C8—H8B109.5
H13A—C13—H13B109.5H8A—C8—H8B109.5
S—C13—H13C109.5C6—C8—H8C109.5
H13A—C13—H13C109.5H8A—C8—H8C109.5
H13B—C13—H13C109.5H8B—C8—H8C109.5
O4—S—O3118.7 (2)C4—C5—C6119.8 (3)
O4—S—N1108.67 (17)C4—C5—C7121.6 (3)
O3—S—N1104.69 (17)C6—C5—C759.8 (2)
O4—S—C13110.6 (3)C4—C5—H5114.9
O3—S—C13108.5 (3)C6—C5—H5114.9
N1—S—C13104.6 (2)C7—C5—H5114.9
C1—N2—C4128.4 (3)F2—C12—F1108.7 (4)
C1—N2—C3112.8 (3)F2—C12—F3103.9 (4)
C4—N2—C3118.8 (3)F1—C12—F3104.3 (4)
C1—N1—C2113.3 (3)F2—C12—C11114.0 (4)
C1—N1—S124.4 (2)F1—C12—C11112.8 (3)
C2—N1—S120.8 (2)F3—C12—C11112.4 (4)
C10—C7—C6121.2 (3)N2—C3—C2104.4 (3)
C10—C7—C5124.2 (3)N2—C3—H3A110.9
C6—C7—C559.5 (2)C2—C3—H3A110.9
C10—C7—H7113.8N2—C3—H3B110.9
C6—C7—H7113.8C2—C3—H3B110.9
C5—C7—H7113.8H3A—C3—H3B108.9
C11—C10—C7126.7 (3)C10—C11—C12124.0 (4)
C11—C10—H10116.7C10—C11—Cl1123.6 (3)
C7—C10—H10116.7C12—C11—Cl1112.4 (3)
C9—C6—C5116.5 (3)N1—C2—C3103.8 (3)
C9—C6—C8114.4 (3)N1—C2—H2A111.0
C5—C6—C8119.4 (3)C3—C2—H2A111.0
C9—C6—C7116.8 (3)N1—C2—H2B111.0
C5—C6—C760.6 (2)C3—C2—H2B111.0
C8—C6—C7118.7 (3)H2A—C2—H2B109.0
O2—C4—N2117.5 (3)C6—C9—H9A109.5
O2—C4—C5125.1 (3)C6—C9—H9B109.5
N2—C4—C5117.4 (3)H9A—C9—H9B109.5
O1—C1—N2127.6 (3)C6—C9—H9C109.5
O1—C1—N1126.9 (3)H9A—C9—H9C109.5
N2—C1—N1105.5 (3)H9B—C9—H9C109.5
O4—S—N1—C137.1 (4)O2—C4—C5—C677.1 (5)
O3—S—N1—C1164.9 (3)N2—C4—C5—C6102.0 (4)
C13—S—N1—C181.1 (4)O2—C4—C5—C76.2 (5)
O4—S—N1—C2157.4 (3)N2—C4—C5—C7172.8 (3)
O3—S—N1—C229.6 (4)C9—C6—C5—C4141.2 (3)
C13—S—N1—C284.4 (4)C8—C6—C5—C43.0 (5)
C6—C7—C10—C11144.2 (4)C7—C6—C5—C4111.4 (3)
C5—C7—C10—C11143.6 (4)C9—C6—C5—C7107.3 (3)
C10—C7—C6—C9139.2 (3)C8—C6—C5—C7108.4 (3)
C5—C7—C6—C9106.9 (3)C10—C7—C5—C40.6 (5)
C10—C7—C6—C5113.9 (4)C6—C7—C5—C4108.5 (4)
C10—C7—C6—C84.4 (5)C10—C7—C5—C6109.1 (4)
C5—C7—C6—C8109.5 (3)C1—N2—C3—C20.5 (4)
C1—N2—C4—O2173.8 (3)C4—N2—C3—C2179.1 (3)
C3—N2—C4—O24.6 (5)C7—C10—C11—C12176.2 (4)
C1—N2—C4—C55.4 (5)C7—C10—C11—Cl14.5 (6)
C3—N2—C4—C5176.3 (3)F2—C12—C11—C10127.9 (5)
C4—N2—C1—O10.5 (6)F1—C12—C11—C103.4 (6)
C3—N2—C1—O1177.9 (4)F3—C12—C11—C10114.2 (5)
C4—N2—C1—N1178.6 (3)F2—C12—C11—Cl152.7 (5)
C3—N2—C1—N13.0 (4)F1—C12—C11—Cl1177.3 (4)
C2—N1—C1—O1176.4 (4)F3—C12—C11—Cl165.1 (4)
S—N1—C1—O110.0 (6)C1—N1—C2—C34.0 (5)
C2—N1—C1—N24.4 (4)S—N1—C2—C3171.0 (3)
S—N1—C1—N2170.8 (2)N2—C3—C2—N12.0 (4)
Hydrogen-bond geometry (Å, º) top
D—H···AD—HH···AD···AD—H···A
C2—H2A···O4i0.972.503.267 (5)136
C3—H3A···O4ii0.972.503.352 (6)146
C13—H13C···O2iii0.962.573.331 (6)137
Symmetry codes: (i) x, y+1/2, z1/2; (ii) x+1, y+1, z+1; (iii) x, y1, z.

Experimental details

Crystal data
Chemical formulaC13H16ClF3N2O4S
Mr388.79
Crystal system, space groupMonoclinic, P21/c
Temperature (K)298
a, b, c (Å)15.404 (4), 9.483 (2), 11.858 (3)
β (°) 103.464 (4)
V3)1684.5 (8)
Z4
Radiation typeMo Kα
µ (mm1)0.40
Crystal size (mm)0.68 × 0.40 × 0.18
Data collection
DiffractometerBruker SMART CCD
diffractometer
Absorption correctionMulti-scan
(SADABS; Bruker, 1997)
Tmin, Tmax0.761, 0.930
No. of measured, independent and
observed [I > 2σ(I)] reflections
6863, 2964, 2548
Rint0.022
(sin θ/λ)max1)0.595
Refinement
R[F2 > 2σ(F2)], wR(F2), S 0.062, 0.175, 1.11
No. of reflections2964
No. of parameters217
H-atom treatmentH-atom parameters constrained
Δρmax, Δρmin (e Å3)0.57, 0.53

Computer programs: SMART (Bruker, 1997), SAINT (Bruker, 1997), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), ORTEP-3 for Windows (Farrugia, 1997), WinGX (Farrugia, 1999).

Hydrogen-bond geometry (Å, º) top
D—H···AD—HH···AD···AD—H···A
C2—H2A···O4i0.972.503.267 (5)136.0
C3—H3A···O4ii0.972.503.352 (6)146.1
C13—H13C···O2iii0.962.573.331 (6)136.5
Symmetry codes: (i) x, y+1/2, z1/2; (ii) x+1, y+1, z+1; (iii) x, y1, z.
 

Acknowledgements

The authors are grateful to the Program of the Education Department of Zhejiang Province of China (grant No. Y200803060) for financial support.

References

First citationBruker (1997). SMART, SAINT and SADABS. Bruker AXS Inc., Madison, Wisconsin, USA.  Google Scholar
First citationChen, F. H. & Yu, Z. S. (1991). Chem. J. Chin. Univ. 12, 485–487.  CAS Google Scholar
First citationFarrugia, L. J. (1997). J. Appl. Cryst. 30, 565.  CrossRef IUCr Journals Google Scholar
First citationFarrugia, L. J. (1999). J. Appl. Cryst. 32, 837–838.  CrossRef CAS IUCr Journals Google Scholar
First citationSheldrick, G. M. (2008). Acta Cryst. A64, 112–122.  Web of Science CrossRef CAS IUCr Journals Google Scholar
First citationSun, N.-B., Shen, D.-L., Rao, G.-W., Tan, C.-X. & Weng, J.-Q. (2006). Acta Cryst. E62, o2123–o2124.  Web of Science CSD CrossRef IUCr Journals Google Scholar
First citationSun, N. B., Shen, D. L., Tan, C. X., Weng, J. Q., Cong, S. & Fu, H. (2008). Chin. J. Org. Chem. 28, 713–717.  CAS Google Scholar
First citationSun, N.-B., Shen, D.-L., Zheng, R.-H., Tan, C.-X. & Weng, J.-Q. (2006). Acta Cryst. E62, o5679–o5680.  Web of Science CSD CrossRef CAS IUCr Journals Google Scholar

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.

Journal logoCRYSTALLOGRAPHIC
COMMUNICATIONS
ISSN: 2056-9890
Follow Acta Cryst. E
Sign up for e-alerts
Follow Acta Cryst. on Twitter
Follow us on facebook
Sign up for RSS feeds