Literature DB >> 22259410

(E)-1-{4-[Bis(4-bromo-phen-yl)meth-yl]piperazin-1-yl}-3-(4-eth-oxy-3-meth-oxy-phen-yl)prop-2-en-1-one.

Yan Zhong, Xiaoping Zhang, Bin Wu.   

Abstract

In the title mol-ecule, C(29)H(30)Br(2)N(2)O(3), the piperazine ring has a chair conformation and the C=C double bond has an E conformation. The dihedral angle between the bromo-benzene rings is 79.1 (3)°. In the crystal, mol-ecules are linked through C-H⋯O and C-H⋯Br hydrogen bonds.

Entities:  

Year:  2011        PMID: 22259410      PMCID: PMC3254469          DOI: 10.1107/S1600536811052123

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


Related literature

For a related structure and background to cinnamic acid derivatives, see: Teng et al. (2011 ▶); Zhong et al. (2011 ▶). For further synthetic details, see: Wu et al. (2008 ▶). For puckering parameters, see: Cremer & Pople (1975 ▶).

Experimental

Crystal data

C29H30Br2N2O3 M = 614.37 Triclinic, a = 8.5520 (17) Å b = 10.355 (2) Å c = 16.361 (3) Å α = 92.85 (3)° β = 100.52 (3)° γ = 95.25 (3)° V = 1415.3 (5) Å3 Z = 2 Mo Kα radiation μ = 2.90 mm−1 T = 293 K 0.20 × 0.10 × 0.10 mm

Data collection

Enraf–Nonius CAD-4 diffractometer Absorption correction: ψ scan (North et al., 1968 ▶) T min = 0.595, T max = 0.761 5569 measured reflections 5190 independent reflections 2233 reflections with I > 2σ(I) R int = 0.098 3 standard reflections every 200 reflections intensity decay: 1%

Refinement

R[F 2 > 2σ(F 2)] = 0.077 wR(F 2) = 0.145 S = 1.01 5190 reflections 325 parameters H-atom parameters constrained Δρmax = 0.28 e Å−3 Δρmin = −0.29 e Å−3 Data collection: CAD-4 EXPRESS (Enraf–Nonius, 1994 ▶); cell refinement: CAD-4 EXPRESS; data reduction: XCAD4 (Harms & Wocadlo, 1995 ▶); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008 ▶); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008 ▶); molecular graphics: SHELXTL (Sheldrick, 2008 ▶); software used to prepare material for publication: SHELXL97. Crystal structure: contains datablock(s) I, global. DOI: 10.1107/S1600536811052123/su2344sup1.cif Structure factors: contains datablock(s) I. DOI: 10.1107/S1600536811052123/su2344Isup2.hkl Supplementary material file. DOI: 10.1107/S1600536811052123/su2344Isup3.cml Additional supplementary materials: crystallographic information; 3D view; checkCIF report
C29H30Br2N2O3Z = 2
Mr = 614.37F(000) = 624
Triclinic, P1Dx = 1.442 Mg m3
Hall symbol: -P 1Mo Kα radiation, λ = 0.71073 Å
a = 8.5520 (17) ÅCell parameters from 25 reflections
b = 10.355 (2) Åθ = 9–13°
c = 16.361 (3) ŵ = 2.90 mm1
α = 92.85 (3)°T = 293 K
β = 100.52 (3)°Block, colourless
γ = 95.25 (3)°0.20 × 0.10 × 0.10 mm
V = 1415.3 (5) Å3
Enraf–Nonius CAD-4 diffractometer2233 reflections with I > 2σ(I)
Radiation source: fine-focus sealed tubeRint = 0.098
graphiteθmax = 25.4°, θmin = 1.3°
ω/2θ scansh = 0→10
Absorption correction: ψ scan (North et al., 1968)k = −12→12
Tmin = 0.595, Tmax = 0.761l = −19→19
5569 measured reflections3 standard reflections every 200 reflections
5190 independent reflections intensity decay: 1%
Refinement on F2Primary atom site location: structure-invariant direct methods
Least-squares matrix: fullSecondary atom site location: difference Fourier map
R[F2 > 2σ(F2)] = 0.077Hydrogen site location: inferred from neighbouring sites
wR(F2) = 0.145H-atom parameters constrained
S = 1.01w = 1/[σ2(Fo2) + (0.045P)2] where P = (Fo2 + 2Fc2)/3
5190 reflections(Δ/σ)max < 0.001
325 parametersΔρmax = 0.28 e Å3
0 restraintsΔρmin = −0.29 e Å3
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
Br10.65376 (13)0.34766 (12)0.57637 (6)0.1418 (5)
N10.9260 (5)0.3258 (4)0.2058 (3)0.0541 (12)
O11.3079 (5)0.4867 (4)0.0380 (3)0.0802 (14)
C10.7349 (9)0.3675 (6)0.3323 (4)0.083 (2)
H1A0.72590.42410.28970.099*
Br20.20032 (9)−0.00602 (9)0.02290 (5)0.0987 (4)
N21.1790 (6)0.4652 (5)0.1444 (3)0.0610 (14)
O21.9023 (5)0.8508 (5)0.3993 (3)0.0900 (16)
C20.6782 (10)0.3959 (8)0.4101 (5)0.107 (3)
H2A0.62230.46760.41620.128*
O32.1174 (5)0.9315 (4)0.3219 (2)0.0730 (13)
C30.7089 (10)0.3160 (9)0.4728 (4)0.092 (3)
C40.7929 (9)0.2026 (9)0.4636 (4)0.102 (3)
H4A0.81590.14950.50760.123*
C50.8378 (7)0.1751 (7)0.3896 (4)0.075 (2)
H5A0.89280.10340.38200.091*
C60.7996 (6)0.2565 (5)0.3260 (4)0.0529 (15)
C70.8396 (8)0.2183 (7)0.2417 (4)0.080 (2)
H7A0.91000.14860.24990.096*
C80.6895 (7)0.1635 (6)0.1820 (4)0.0630 (17)
C90.6436 (7)0.0372 (6)0.1727 (4)0.0648 (17)
H9A0.7130−0.01760.20010.078*
C100.5035 (7)−0.0188 (5)0.1265 (4)0.0641 (18)
H10A0.4772−0.10830.12270.077*
C110.4077 (6)0.0579 (6)0.0878 (3)0.0526 (14)
C120.4392 (8)0.2000 (6)0.0887 (4)0.083 (2)
H12A0.36870.25290.06010.100*
C130.5895 (8)0.2469 (6)0.1383 (4)0.079 (2)
H13A0.62250.33540.14190.095*
C140.9581 (8)0.2932 (7)0.1231 (4)0.083 (2)
H14A1.02730.22370.12630.100*
H14B0.85850.26220.08590.100*
C151.0330 (8)0.4036 (6)0.0898 (4)0.083 (2)
H15A0.95710.46770.07930.099*
H15B1.05920.37600.03680.099*
C161.1500 (8)0.4937 (6)0.2289 (4)0.085 (2)
H16A1.08020.56250.22820.103*
H16B1.25040.52350.26580.103*
C171.0756 (7)0.3766 (6)0.2603 (4)0.0732 (19)
H17A1.14910.31020.26470.088*
H17B1.05530.39790.31560.088*
C181.3040 (7)0.5159 (7)0.1128 (4)0.0684 (18)
C191.4415 (8)0.5873 (6)0.1696 (4)0.074 (2)
H19A1.43220.61160.22380.089*
C201.5779 (7)0.6173 (6)0.1446 (4)0.074 (2)
H20A1.58250.58530.09110.089*
C211.7193 (6)0.6923 (5)0.1888 (3)0.0443 (13)
C221.8438 (7)0.7364 (6)0.1511 (4)0.0641 (17)
H22A1.83930.71090.09530.077*
C231.9733 (7)0.8157 (7)0.1922 (4)0.079 (2)
H23A2.05020.84750.16270.094*
C241.9934 (6)0.8501 (6)0.2765 (4)0.0588 (16)
C251.8700 (6)0.8058 (6)0.3175 (4)0.0539 (15)
C261.7401 (6)0.7287 (5)0.2764 (3)0.0533 (15)
H26A1.66210.69840.30560.064*
C271.7825 (8)0.8123 (7)0.4451 (4)0.096 (2)
H27A1.81320.84940.50140.144*
H27B1.77010.71920.44530.144*
H27C1.68310.84200.41980.144*
C282.2484 (7)0.9702 (7)0.2786 (4)0.078 (2)
H28A2.21101.01690.23010.094*
H28B2.29750.89510.26140.094*
C292.3669 (8)1.0595 (7)0.3454 (4)0.104 (3)
H29A2.45911.08900.32300.156*
H29B2.39931.01190.39350.156*
H29C2.31561.13310.36120.156*
U11U22U33U12U13U23
Br10.1442 (9)0.2104 (13)0.0742 (6)−0.0019 (8)0.0470 (6)−0.0167 (7)
N10.058 (3)0.061 (3)0.040 (2)−0.009 (2)0.007 (2)−0.001 (2)
O10.090 (3)0.084 (3)0.061 (3)−0.029 (3)0.017 (3)0.014 (3)
C10.135 (7)0.050 (4)0.071 (5)0.003 (4)0.038 (5)0.020 (4)
Br20.0657 (5)0.1419 (8)0.0789 (5)−0.0321 (5)0.0134 (4)−0.0091 (5)
N20.059 (3)0.071 (3)0.049 (3)−0.019 (3)0.016 (3)0.000 (3)
O20.068 (3)0.134 (4)0.069 (3)−0.025 (3)0.026 (3)0.028 (3)
C20.120 (7)0.109 (7)0.090 (6)0.003 (6)0.022 (6)−0.006 (6)
O30.059 (3)0.107 (4)0.051 (2)−0.017 (2)0.013 (2)0.026 (2)
C30.106 (6)0.113 (7)0.046 (4)−0.034 (5)0.018 (4)−0.017 (5)
C40.106 (7)0.148 (9)0.046 (4)−0.003 (6)0.000 (4)0.005 (5)
C50.065 (4)0.094 (5)0.064 (4)0.004 (4)−0.001 (4)0.033 (4)
C60.057 (3)0.035 (3)0.065 (4)−0.018 (3)0.015 (3)0.016 (3)
C70.074 (5)0.097 (6)0.066 (4)−0.017 (4)0.012 (4)0.020 (4)
C80.067 (4)0.065 (4)0.058 (4)0.009 (3)0.014 (3)0.001 (3)
C90.067 (4)0.074 (4)0.058 (4)0.015 (3)0.012 (3)0.030 (4)
C100.075 (4)0.044 (4)0.081 (5)0.014 (3)0.024 (4)0.031 (3)
C110.048 (3)0.058 (3)0.056 (4)0.007 (3)0.022 (3)−0.004 (3)
C120.090 (5)0.080 (5)0.080 (5)0.027 (4)0.001 (4)0.034 (4)
C130.094 (5)0.063 (4)0.075 (5)−0.020 (4)0.009 (4)0.028 (4)
C140.085 (5)0.091 (6)0.071 (5)−0.011 (4)0.019 (4)−0.004 (4)
C150.083 (5)0.098 (5)0.057 (4)−0.034 (4)0.002 (4)0.032 (4)
C160.106 (6)0.073 (5)0.069 (5)−0.031 (4)0.015 (4)0.003 (4)
C170.066 (4)0.088 (5)0.058 (4)−0.012 (4)0.005 (3)−0.008 (4)
C180.050 (4)0.100 (5)0.060 (4)0.015 (3)0.013 (3)0.022 (4)
C190.083 (5)0.073 (4)0.064 (4)−0.018 (4)0.012 (4)0.026 (4)
C200.065 (4)0.096 (5)0.061 (4)−0.019 (4)0.020 (4)0.017 (4)
C210.044 (3)0.057 (3)0.039 (3)0.029 (3)0.007 (3)0.029 (3)
C220.074 (4)0.067 (4)0.062 (4)0.016 (3)0.029 (3)0.028 (3)
C230.046 (4)0.103 (6)0.081 (5)−0.022 (4)0.013 (4)0.008 (4)
C240.039 (3)0.056 (4)0.074 (4)−0.004 (3)−0.011 (3)0.029 (3)
C250.039 (3)0.070 (4)0.056 (4)0.003 (3)0.018 (3)0.019 (3)
C260.040 (3)0.059 (3)0.065 (4)0.002 (2)0.010 (3)0.037 (3)
C270.099 (6)0.108 (6)0.086 (5)0.005 (5)0.034 (5)0.009 (5)
C280.046 (3)0.103 (5)0.086 (5)0.000 (4)0.015 (4)0.024 (4)
C290.088 (5)0.114 (6)0.101 (6)−0.045 (5)0.028 (5)−0.012 (5)
Br1—C31.862 (7)C13—H13A0.9300
N1—C171.458 (6)C14—C151.438 (7)
N1—C141.458 (7)C14—H14A0.9700
N1—C71.484 (7)C14—H14B0.9700
O1—C181.254 (7)C15—H15A0.9700
C1—C61.328 (8)C15—H15B0.9700
C1—C21.469 (9)C16—C171.475 (7)
C1—H1A0.9300C16—H16A0.9700
Br2—C111.934 (5)C16—H16B0.9700
N2—C181.346 (7)C17—H17A0.9700
N2—C151.468 (7)C17—H17B0.9700
N2—C161.469 (7)C18—C191.471 (8)
O2—C251.365 (6)C19—C201.321 (7)
O2—C271.416 (7)C19—H19A0.9300
C2—C31.354 (10)C20—C211.429 (7)
C2—H2A0.9300C20—H20A0.9300
O3—C241.369 (6)C21—C221.379 (7)
O3—C281.467 (6)C21—C261.438 (7)
C3—C41.447 (11)C22—C231.364 (8)
C4—C51.360 (9)C22—H22A0.9300
C4—H4A0.9300C23—C241.383 (8)
C5—C61.384 (7)C23—H23A0.9300
C5—H5A0.9300C24—C251.406 (7)
C6—C71.524 (8)C25—C261.355 (7)
C7—C81.509 (8)C26—H26A0.9300
C7—H7A0.9800C27—H27A0.9600
C8—C91.324 (7)C27—H27B0.9600
C8—C131.400 (8)C27—H27C0.9600
C9—C101.358 (8)C28—C291.550 (8)
C9—H9A0.9300C28—H28A0.9700
C10—C111.297 (7)C28—H28B0.9700
C10—H10A0.9300C29—H29A0.9600
C11—C121.470 (8)C29—H29B0.9600
C12—C131.419 (8)C29—H29C0.9600
C12—H12A0.9300
C17—N1—C14108.8 (5)N2—C15—H15B108.8
C17—N1—C7112.4 (5)H15A—C15—H15B107.6
C14—N1—C7114.4 (5)N2—C16—C17110.5 (5)
C6—C1—C2116.4 (7)N2—C16—H16A109.5
C6—C1—H1A121.8C17—C16—H16A109.5
C2—C1—H1A121.8N2—C16—H16B109.5
C18—N2—C15121.1 (5)C17—C16—H16B109.5
C18—N2—C16126.0 (5)H16A—C16—H16B108.1
C15—N2—C16110.8 (5)N1—C17—C16111.7 (5)
C25—O2—C27114.8 (5)N1—C17—H17A109.3
C3—C2—C1118.8 (8)C16—C17—H17A109.3
C3—C2—H2A120.6N1—C17—H17B109.3
C1—C2—H2A120.6C16—C17—H17B109.3
C24—O3—C28115.8 (5)H17A—C17—H17B107.9
C2—C3—C4121.2 (7)O1—C18—N2118.5 (6)
C2—C3—Br1122.7 (8)O1—C18—C19121.9 (6)
C4—C3—Br1116.1 (6)N2—C18—C19119.0 (6)
C5—C4—C3118.8 (7)C20—C19—C18121.0 (6)
C5—C4—H4A120.6C20—C19—H19A119.5
C3—C4—H4A120.6C18—C19—H19A119.5
C4—C5—C6118.3 (7)C19—C20—C21128.7 (6)
C4—C5—H5A120.8C19—C20—H20A115.6
C6—C5—H5A120.8C21—C20—H20A115.6
C1—C6—C5125.9 (7)C22—C21—C20123.0 (5)
C1—C6—C7116.6 (6)C22—C21—C26115.3 (5)
C5—C6—C7117.5 (6)C20—C21—C26121.7 (5)
N1—C7—C8111.1 (5)C23—C22—C21122.8 (6)
N1—C7—C6113.5 (5)C23—C22—H22A118.6
C8—C7—C6109.9 (5)C21—C22—H22A118.6
N1—C7—H7A107.4C22—C23—C24121.7 (6)
C8—C7—H7A107.4C22—C23—H23A119.1
C6—C7—H7A107.4C24—C23—H23A119.1
C9—C8—C13118.1 (6)O3—C24—C23125.5 (5)
C9—C8—C7121.6 (6)O3—C24—C25117.2 (6)
C13—C8—C7120.3 (6)C23—C24—C25117.2 (5)
C8—C9—C10125.3 (6)C26—C25—O2128.0 (5)
C8—C9—H9A117.4C26—C25—C24121.0 (6)
C10—C9—H9A117.4O2—C25—C24111.0 (5)
C11—C10—C9117.1 (6)C25—C26—C21121.9 (5)
C11—C10—H10A121.4C25—C26—H26A119.0
C9—C10—H10A121.4C21—C26—H26A119.0
C10—C11—C12125.6 (6)O2—C27—H27A109.5
C10—C11—Br2122.2 (5)O2—C27—H27B109.5
C12—C11—Br2112.2 (4)H27A—C27—H27B109.5
C13—C12—C11112.1 (5)O2—C27—H27C109.5
C13—C12—H12A124.0H27A—C27—H27C109.5
C11—C12—H12A124.0H27B—C27—H27C109.5
C8—C13—C12121.8 (6)O3—C28—C29103.1 (5)
C8—C13—H13A119.1O3—C28—H28A111.1
C12—C13—H13A119.1C29—C28—H28A111.1
C15—C14—N1111.6 (6)O3—C28—H28B111.1
C15—C14—H14A109.3C29—C28—H28B111.1
N1—C14—H14A109.3H28A—C28—H28B109.1
C15—C14—H14B109.3C28—C29—H29A109.5
N1—C14—H14B109.3C28—C29—H29B109.5
H14A—C14—H14B108.0H29A—C29—H29B109.5
C14—C15—N2114.0 (5)C28—C29—H29C109.5
C14—C15—H15A108.8H29A—C29—H29C109.5
N2—C15—H15A108.8H29B—C29—H29C109.5
C14—C15—H15B108.8
C6—C1—C2—C36.4 (11)C18—N2—C15—C14144.2 (6)
C1—C2—C3—C4−1.2 (12)C16—N2—C15—C14−51.3 (8)
C1—C2—C3—Br1176.3 (5)C18—N2—C16—C17−144.8 (6)
C2—C3—C4—C5−1.7 (12)C15—N2—C16—C1751.7 (8)
Br1—C3—C4—C5−179.4 (5)C14—N1—C17—C1659.4 (7)
C3—C4—C5—C6−0.5 (10)C7—N1—C17—C16−172.9 (6)
C2—C1—C6—C5−9.3 (10)N2—C16—C17—N1−57.7 (8)
C2—C1—C6—C7172.6 (6)C15—N2—C18—O1−14.6 (10)
C4—C5—C6—C16.5 (10)C16—N2—C18—O1−176.5 (6)
C4—C5—C6—C7−175.5 (6)C15—N2—C18—C19174.4 (6)
C17—N1—C7—C8−177.2 (5)C16—N2—C18—C1912.4 (10)
C14—N1—C7—C8−52.5 (8)O1—C18—C19—C20−3.6 (10)
C17—N1—C7—C658.3 (7)N2—C18—C19—C20167.1 (6)
C14—N1—C7—C6−177.0 (5)C18—C19—C20—C21175.7 (6)
C1—C6—C7—N147.2 (8)C19—C20—C21—C22−168.1 (7)
C5—C6—C7—N1−130.9 (6)C19—C20—C21—C2611.0 (10)
C1—C6—C7—C8−77.8 (7)C20—C21—C22—C23175.1 (6)
C5—C6—C7—C8104.0 (7)C26—C21—C22—C23−4.0 (8)
N1—C7—C8—C9140.8 (6)C21—C22—C23—C244.5 (10)
C6—C7—C8—C9−92.7 (8)C28—O3—C24—C23−8.4 (9)
N1—C7—C8—C13−43.0 (9)C28—O3—C24—C25176.7 (5)
C6—C7—C8—C1383.4 (7)C22—C23—C24—O3−178.3 (5)
C13—C8—C9—C10−2.7 (10)C22—C23—C24—C25−3.4 (10)
C7—C8—C9—C10173.6 (6)C27—O2—C25—C26−0.9 (9)
C8—C9—C10—C110.6 (10)C27—O2—C25—C24179.1 (5)
C9—C10—C11—C121.0 (9)O3—C24—C25—C26177.7 (5)
C9—C10—C11—Br2−177.6 (4)C23—C24—C25—C262.3 (9)
C10—C11—C12—C13−0.4 (9)O3—C24—C25—O2−2.3 (8)
Br2—C11—C12—C13178.3 (5)C23—C24—C25—O2−177.6 (6)
C9—C8—C13—C123.2 (10)O2—C25—C26—C21177.8 (5)
C7—C8—C13—C12−173.1 (6)C24—C25—C26—C21−2.2 (8)
C11—C12—C13—C8−1.7 (9)C22—C21—C26—C252.9 (7)
C17—N1—C14—C15−57.0 (7)C20—C21—C26—C25−176.3 (5)
C7—N1—C14—C15176.4 (5)C24—O3—C28—C29−179.9 (5)
N1—C14—C15—N254.4 (8)
D—H···AD—HH···AD···AD—H···A
C12—H12A···O1i0.932.553.358 (8)145
C20—H20A···O1ii0.932.573.461 (8)161
C16—H16B···Br1iii0.972.793.562 (7)137
Table 1

Hydrogen-bond geometry (Å, °)

D—H⋯AD—HH⋯ADAD—H⋯A
C12—H12A⋯O1i0.932.553.358 (8)145
C20—H20A⋯O1ii0.932.573.461 (8)161
C16—H16B⋯Br1iii0.972.793.562 (7)137

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

  3 in total

1.  A short history of SHELX.

Authors:  George M Sheldrick
Journal:  Acta Crystallogr A       Date:  2007-12-21       Impact factor: 2.290

2.  (E)-1-{4-[Bis(4-meth-oxy-phen-yl)meth-yl]piperazin-1-yl}-3-(4-fluoro-phen-yl)prop-2-en-1-one.

Authors:  Yan-Bo Teng; Zhao-Hui Dai; Bin Wu
Journal:  Acta Crystallogr Sect E Struct Rep Online       Date:  2011-02-23

3.  (E)-1-{4-[Bis(4-bromo-phen-yl)meth-yl]piperazin-1-yl}-3-(4-bromo-phen-yl)prop-2-en-1-one.

Authors:  Yan Zhong; Xiaoping Zhang; Bin Wu
Journal:  Acta Crystallogr Sect E Struct Rep Online       Date:  2011-11-19
  3 in total
  2 in total

1.  (E)-1-{4-[Bis(4-bromo-phen-yl)meth-yl]piperazin-1-yl}-3-(4-eth-oxy-phen-yl)prop-2-en-1-one.

Authors:  Yan Zhong; Xiaoping Zhang; Bin Wu
Journal:  Acta Crystallogr Sect E Struct Rep Online       Date:  2012-02-04

2.  (E)-1-{4-[Bis(4-bromo-phen-yl)meth-yl]piperazin-1-yl}-3-(4-methyl-phen-yl)prop-2-en-1-one.

Authors:  Yan Zhong; Xiaoping Zhang; Bin Wu
Journal:  Acta Crystallogr Sect E Struct Rep Online       Date:  2012-02-04
  2 in total

北京卡尤迪生物科技股份有限公司 © 2022-2023.