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Journal logoCRYSTALLOGRAPHIC
COMMUNICATIONS
ISSN: 2056-9890

2-[1-(1-Oxoindan-2-yl)eth­yl]indan-1-one

aCenter of Excellence for Advanced Materials Research (CEAMR), King Abdulaziz University, PO Box 80203, Jeddah 21589, Saudi Arabia, bChemistry Department, Faculty of Science, King Abdulaziz University, PO Box 80203, Jeddah 21589, Saudi Arabia, and cDepartment of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia
*Correspondence e-mail: edward.tiekink@gmail.com

(Received 25 June 2012; accepted 27 June 2012; online 4 July 2012)

In the title compound, C20H18O2, the fused-ring systems are essentially planar (r.m.s. deviations of the nine fitted atoms = 0.009 and 0.027 Å) and exhibit an orthogonal relationship [dihedral angle = 79.83 (5)°]. To a first approximation, the ketone-O atoms are directed to opposite sides of the mol­ecule. A three-dimensional architecture arises in the crystal packing owing to C—H⋯O, C—H⋯π and ππ inter­actions [between centrosymmetrically related benzene rings with centroid–centroid distance = 3.7647 (10) Å].

Related literature

For the biological activity of related indan-1-one derivatives, see: Vera-DiVaio et al. (2009[Vera-DiVaio, M. A. F., Freitas, A. C. C., Castro, H. C., de Albuquerque, S., Cabral, L. M., Rodrigues, C. R., Albuquerque, M. G., Martins, R. C. A., Henriques, M. G. M. O. & Dias, L. R. S. (2009). Bioorg. Med. Chem. 17, 295-302.]). For a related structure see: Asiri et al. (2012[Asiri, A. M., Faidallah, H. M., Al-Nemari, K. F., Ng, S. W. & Tiekink, E. R. T. (2012). Acta Cryst. E68, o1065.]).

[Scheme 1]

Experimental

Crystal data
  • C20H18O2

  • Mr = 290.34

  • Triclinic, [P \overline 1]

  • a = 7.9225 (6) Å

  • b = 10.1226 (8) Å

  • c = 10.3927 (7) Å

  • α = 103.200 (6)°

  • β = 103.304 (6)°

  • γ = 109.462 (7)°

  • V = 721.25 (9) Å3

  • Z = 2

  • Mo Kα radiation

  • μ = 0.09 mm−1

  • T = 100 K

  • 0.40 × 0.20 × 0.10 mm

Data collection
  • Agilent SuperNova Dual diffractometer with an Atlas detector

  • Absorption correction: multi-scan (CrysAlis PRO; Agilent, 2012[Agilent (2012). CrysAlis PRO. Agilent Technologies, Yarnton, England.]) Tmin = 0.748, Tmax = 1.000

  • 4961 measured reflections

  • 3299 independent reflections

  • 2663 reflections with I > 2σ(I)

  • Rint = 0.021

Refinement
  • R[F2 > 2σ(F2)] = 0.048

  • wR(F2) = 0.130

  • S = 1.05

  • 3299 reflections

  • 199 parameters

  • H-atom parameters constrained

  • Δρmax = 0.29 e Å−3

  • Δρmin = −0.23 e Å−3

Table 1
Hydrogen-bond geometry (Å, °)

Cg1 is the centroid of the C14–C19 benzene ring.

D—H⋯A D—H H⋯A DA D—H⋯A
C12—H12⋯O1i 1.00 2.55 3.2317 (19) 125
C3—H3⋯Cg1i 0.95 2.62 3.5395 (17) 163
C11—H11CCg1ii 0.98 2.99 3.6481 (18) 126
Symmetry codes: (i) -x+1, -y+1, -z; (ii) -x+2, -y+1, -z+1.

Data collection: CrysAlis PRO (Agilent, 2012[Agilent (2012). CrysAlis PRO. Agilent Technologies, Yarnton, England.]); cell refinement: CrysAlis PRO; data reduction: CrysAlis PRO; 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.]) and DIAMOND (Brandenburg, 2006[Brandenburg, K. (2006). DIAMOND. Crystal Impact GbR, Bonn, Germany.]); software used to prepare material for publication: publCIF (Westrip, 2010[Westrip, S. P. (2010). J. Appl. Cryst. 43, 920-925.]).

Supporting information


Comment top

The motivation for the synthesis of the title compound, 2-[1-(1-oxo-2,3-dihydro-1H-inden-2-yl)ethyl]-2,3-dihydro-1H-inden-1-one (I), rests with its relationship to biologically active compounds (Vera-DiVaio et al., 2009). Herein, the crystal and molecular structure of (I) is described in continuation of on-going structural studies of indan-1-one derivatives (Asiri et al., 2012).

In (I), Fig. 1, each fused ring system is planar [C1-containing system: r.m.s. deviation of the nine fitted atoms = 0.009 Å with maximum deviation of 0.012 (2) Å for atom C7; C19-containing system: 0.027 Å and 0.044 (2) Å for atom C13]. The dihedral angle between the indan-1-one residues = 79.83 (5)°, indicating an almost orthogonal relationship. To a first approximation the ketone-O atoms are directed to opposite sides of the molecule.

In the crystal packing, molecules are arranged in a three-dimensional architecture by C—H···O and C—H···π interactions, Table 1, as well as ππ contacts between centrosymmetrically related C2–C6 benzene rings [inter-centroid distance = 3.7647 (10) Å for symmetry operation -x, -y, -z], Fig. 2.

Related literature top

For the biological activity of related indan-1-one derivatives, see: Vera-DiVaio et al. (2009). For a related structure see: Asiri et al. (2012).

Experimental top

A solution of acetaldehyde (0.44 g, 0.01 M) in ethanol (20 mL) was added to a stirred solution of 1-indanone (1.3 g,0.01 M) in (20%) ethanolic KOH (20 mL) and stirring was maintained at room temperature for 6 h. The reaction mixture was then poured onto water (200 mL) and set aside overnight. The precipitated solid product was collected by filtration, washed with water, dried and recrystallized from ethanol. M.P.: 413–414 K. Yield: 86%.

Refinement top

Carbon-bound H-atoms were placed in calculated positions [C—H = 0.95–0.99 Å, Uiso(H) = 1.2–1.5Ueq(C)] and were included in the refinement in the riding model approximation. Owing to poor agreement, the (-8 1 5) reflection was omitted from the final cycles of refinement.

Structure description top

The motivation for the synthesis of the title compound, 2-[1-(1-oxo-2,3-dihydro-1H-inden-2-yl)ethyl]-2,3-dihydro-1H-inden-1-one (I), rests with its relationship to biologically active compounds (Vera-DiVaio et al., 2009). Herein, the crystal and molecular structure of (I) is described in continuation of on-going structural studies of indan-1-one derivatives (Asiri et al., 2012).

In (I), Fig. 1, each fused ring system is planar [C1-containing system: r.m.s. deviation of the nine fitted atoms = 0.009 Å with maximum deviation of 0.012 (2) Å for atom C7; C19-containing system: 0.027 Å and 0.044 (2) Å for atom C13]. The dihedral angle between the indan-1-one residues = 79.83 (5)°, indicating an almost orthogonal relationship. To a first approximation the ketone-O atoms are directed to opposite sides of the molecule.

In the crystal packing, molecules are arranged in a three-dimensional architecture by C—H···O and C—H···π interactions, Table 1, as well as ππ contacts between centrosymmetrically related C2–C6 benzene rings [inter-centroid distance = 3.7647 (10) Å for symmetry operation -x, -y, -z], Fig. 2.

For the biological activity of related indan-1-one derivatives, see: Vera-DiVaio et al. (2009). For a related structure see: Asiri et al. (2012).

Computing details top

Data collection: CrysAlis PRO (Agilent, 2012); cell refinement: CrysAlis PRO (Agilent, 2012); data reduction: CrysAlis PRO (Agilent, 2012); 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) and DIAMOND (Brandenburg, 2006); software used to prepare material for publication: publCIF (Westrip, 2010).

Figures top
[Figure 1] Fig. 1. The molecular structure of (I) showing the atom-labelling scheme and displacement ellipsoids at the 50% probability level.
[Figure 2] Fig. 2. A view in projection down the a axis of the unit-cell contents of (I). The C—H···O, C—H···π and ππ interactions are shown as orange, purple and blue dashed lines, respectively.
2-[1-(1-Oxoindan-2-yl)ethyl]indan-1-one top
Crystal data top
C20H18O2Z = 2
Mr = 290.34F(000) = 308
Triclinic, P1Dx = 1.337 Mg m3
Hall symbol: -P 1Mo Kα radiation, λ = 0.71073 Å
a = 7.9225 (6) ÅCell parameters from 2265 reflections
b = 10.1226 (8) Åθ = 2.3–27.5°
c = 10.3927 (7) ŵ = 0.09 mm1
α = 103.200 (6)°T = 100 K
β = 103.304 (6)°Prism, colourless
γ = 109.462 (7)°0.40 × 0.20 × 0.10 mm
V = 721.25 (9) Å3
Data collection top
Agilent SuperNova Dual
diffractometer with an Atlas detector
3299 independent reflections
Radiation source: SuperNova (Mo) X-ray Source2663 reflections with I > 2σ(I)
Mirror monochromatorRint = 0.021
Detector resolution: 10.4041 pixels mm-1θmax = 27.6°, θmin = 2.3°
ω scanh = 108
Absorption correction: multi-scan
(CrysAlis PRO; Agilent, 2012)
k = 1313
Tmin = 0.748, Tmax = 1.000l = 1313
4961 measured reflections
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)] = 0.048Hydrogen site location: inferred from neighbouring sites
wR(F2) = 0.130H-atom parameters constrained
S = 1.05 w = 1/[σ2(Fo2) + (0.0616P)2 + 0.1751P]
where P = (Fo2 + 2Fc2)/3
3299 reflections(Δ/σ)max < 0.001
199 parametersΔρmax = 0.29 e Å3
0 restraintsΔρmin = 0.23 e Å3
Crystal data top
C20H18O2γ = 109.462 (7)°
Mr = 290.34V = 721.25 (9) Å3
Triclinic, P1Z = 2
a = 7.9225 (6) ÅMo Kα radiation
b = 10.1226 (8) ŵ = 0.09 mm1
c = 10.3927 (7) ÅT = 100 K
α = 103.200 (6)°0.40 × 0.20 × 0.10 mm
β = 103.304 (6)°
Data collection top
Agilent SuperNova Dual
diffractometer with an Atlas detector
3299 independent reflections
Absorption correction: multi-scan
(CrysAlis PRO; Agilent, 2012)
2663 reflections with I > 2σ(I)
Tmin = 0.748, Tmax = 1.000Rint = 0.021
4961 measured reflections
Refinement top
R[F2 > 2σ(F2)] = 0.0480 restraints
wR(F2) = 0.130H-atom parameters constrained
S = 1.05Δρmax = 0.29 e Å3
3299 reflectionsΔρmin = 0.23 e Å3
199 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
O10.33484 (17)0.32248 (12)0.00936 (11)0.0238 (3)
O20.79274 (16)0.78862 (12)0.39844 (11)0.0198 (3)
C10.3010 (2)0.27906 (16)0.10437 (15)0.0163 (3)
C20.1106 (2)0.20108 (16)0.11050 (15)0.0155 (3)
C30.0656 (2)0.16295 (17)0.01190 (16)0.0187 (3)
H30.07440.18860.07110.022*
C40.2270 (2)0.08665 (17)0.03875 (17)0.0210 (4)
H40.34880.05930.02650.025*
C50.2120 (2)0.04949 (18)0.16127 (17)0.0214 (4)
H50.32440.00300.17790.026*
C60.0367 (2)0.08758 (17)0.25916 (17)0.0195 (3)
H60.02800.06190.34210.023*
C70.1266 (2)0.16466 (16)0.23241 (16)0.0160 (3)
C80.3313 (2)0.21549 (18)0.31939 (16)0.0187 (3)
H8A0.35900.12970.33130.022*
H8B0.36060.28590.41320.022*
C90.4496 (2)0.29281 (16)0.23705 (15)0.0159 (3)
H90.52240.23430.20810.019*
C100.5928 (2)0.45371 (16)0.32567 (15)0.0144 (3)
H100.52050.50900.36180.017*
C110.7368 (2)0.45252 (18)0.45280 (16)0.0200 (3)
H11A0.82670.55470.50910.030*
H11B0.80600.39520.42010.030*
H11C0.66940.40700.51010.030*
C120.6953 (2)0.53610 (16)0.23973 (15)0.0161 (3)
H120.59690.53940.16210.019*
C130.8140 (2)0.46661 (17)0.17407 (16)0.0190 (3)
H13A0.82090.38380.20740.023*
H13B0.75820.42840.07050.023*
C141.0084 (2)0.59087 (16)0.22124 (15)0.0155 (3)
C151.1668 (2)0.58854 (17)0.18552 (16)0.0183 (3)
H151.16000.50130.12210.022*
C161.3348 (2)0.71586 (18)0.24424 (16)0.0197 (3)
H161.44340.71570.22010.024*
C171.3462 (2)0.84420 (18)0.33833 (16)0.0191 (3)
H171.46300.92960.37890.023*
C181.1889 (2)0.84811 (17)0.37301 (16)0.0169 (3)
H181.19570.93530.43630.020*
C191.0201 (2)0.72010 (16)0.31216 (15)0.0149 (3)
C200.8326 (2)0.69643 (16)0.32874 (15)0.0153 (3)
Atomic displacement parameters (Å2) top
U11U22U33U12U13U23
O10.0241 (6)0.0235 (6)0.0171 (5)0.0014 (5)0.0050 (5)0.0092 (5)
O20.0198 (6)0.0187 (6)0.0208 (6)0.0077 (5)0.0085 (5)0.0046 (5)
C10.0184 (8)0.0119 (7)0.0156 (7)0.0037 (6)0.0052 (6)0.0038 (6)
C20.0155 (8)0.0116 (7)0.0170 (7)0.0044 (6)0.0046 (6)0.0031 (6)
C30.0201 (8)0.0154 (7)0.0175 (7)0.0062 (6)0.0028 (6)0.0047 (6)
C40.0155 (8)0.0192 (8)0.0226 (8)0.0054 (7)0.0016 (6)0.0040 (7)
C50.0154 (8)0.0204 (8)0.0257 (8)0.0041 (6)0.0086 (7)0.0059 (7)
C60.0188 (8)0.0198 (8)0.0203 (7)0.0062 (7)0.0083 (6)0.0081 (7)
C70.0160 (8)0.0133 (7)0.0175 (7)0.0055 (6)0.0053 (6)0.0038 (6)
C80.0152 (8)0.0199 (8)0.0206 (7)0.0043 (6)0.0056 (6)0.0103 (7)
C90.0141 (7)0.0155 (7)0.0183 (7)0.0047 (6)0.0064 (6)0.0070 (6)
C100.0136 (7)0.0151 (7)0.0139 (7)0.0045 (6)0.0050 (6)0.0052 (6)
C110.0167 (8)0.0238 (8)0.0193 (7)0.0064 (7)0.0050 (6)0.0104 (7)
C120.0145 (8)0.0159 (7)0.0151 (7)0.0029 (6)0.0051 (6)0.0050 (6)
C130.0200 (8)0.0156 (7)0.0198 (7)0.0038 (6)0.0107 (6)0.0038 (6)
C140.0175 (8)0.0152 (7)0.0147 (7)0.0054 (6)0.0063 (6)0.0073 (6)
C150.0224 (8)0.0186 (8)0.0201 (7)0.0108 (7)0.0106 (7)0.0102 (7)
C160.0165 (8)0.0267 (8)0.0213 (7)0.0116 (7)0.0080 (6)0.0120 (7)
C170.0134 (8)0.0205 (8)0.0191 (7)0.0040 (6)0.0020 (6)0.0069 (7)
C180.0161 (8)0.0167 (7)0.0160 (7)0.0054 (6)0.0039 (6)0.0054 (6)
C190.0143 (8)0.0164 (7)0.0144 (7)0.0053 (6)0.0042 (6)0.0076 (6)
C200.0156 (8)0.0164 (7)0.0130 (7)0.0046 (6)0.0040 (6)0.0070 (6)
Geometric parameters (Å, º) top
O1—C11.2172 (18)C10—H101.0000
O2—C201.2200 (18)C11—H11A0.9800
C1—C21.475 (2)C11—H11B0.9800
C1—C91.537 (2)C11—H11C0.9800
C2—C71.388 (2)C12—C201.532 (2)
C2—C31.397 (2)C12—C131.537 (2)
C3—C41.383 (2)C12—H121.0000
C3—H30.9500C13—C141.508 (2)
C4—C51.399 (2)C13—H13A0.9900
C4—H40.9500C13—H13B0.9900
C5—C61.388 (2)C14—C191.388 (2)
C5—H50.9500C14—C151.394 (2)
C6—C71.397 (2)C15—C161.389 (2)
C6—H60.9500C15—H150.9500
C7—C81.506 (2)C16—C171.398 (2)
C8—C91.552 (2)C16—H160.9500
C8—H8A0.9900C17—C181.384 (2)
C8—H8B0.9900C17—H170.9500
C9—C101.546 (2)C18—C191.396 (2)
C9—H91.0000C18—H180.9500
C10—C111.539 (2)C19—C201.481 (2)
C10—C121.541 (2)
O1—C1—C2125.93 (14)C10—C11—H11A109.5
O1—C1—C9125.80 (14)C10—C11—H11B109.5
C2—C1—C9108.26 (12)H11A—C11—H11B109.5
C7—C2—C3121.93 (15)C10—C11—H11C109.5
C7—C2—C1109.99 (13)H11A—C11—H11C109.5
C3—C2—C1128.07 (14)H11B—C11—H11C109.5
C4—C3—C2117.95 (14)C20—C12—C13105.56 (12)
C4—C3—H3121.0C20—C12—C10111.74 (12)
C2—C3—H3121.0C13—C12—C10115.59 (12)
C3—C4—C5120.44 (15)C20—C12—H12107.9
C3—C4—H4119.8C13—C12—H12107.9
C5—C4—H4119.8C10—C12—H12107.9
C6—C5—C4121.51 (15)C14—C13—C12105.17 (12)
C6—C5—H5119.2C14—C13—H13A110.7
C4—C5—H5119.2C12—C13—H13A110.7
C5—C6—C7118.21 (14)C14—C13—H13B110.7
C5—C6—H6120.9C12—C13—H13B110.7
C7—C6—H6120.9H13A—C13—H13B108.8
C2—C7—C6119.95 (14)C19—C14—C15119.78 (14)
C2—C7—C8111.50 (14)C19—C14—C13111.79 (14)
C6—C7—C8128.54 (14)C15—C14—C13128.43 (14)
C7—C8—C9105.61 (12)C16—C15—C14118.87 (15)
C7—C8—H8A110.6C16—C15—H15120.6
C9—C8—H8A110.6C14—C15—H15120.6
C7—C8—H8B110.6C15—C16—C17120.85 (15)
C9—C8—H8B110.6C15—C16—H16119.6
H8A—C8—H8B108.8C17—C16—H16119.6
C1—C9—C10114.59 (12)C18—C17—C16120.66 (15)
C1—C9—C8104.64 (12)C18—C17—H17119.7
C10—C9—C8112.64 (13)C16—C17—H17119.7
C1—C9—H9108.2C17—C18—C19118.06 (14)
C10—C9—H9108.2C17—C18—H18121.0
C8—C9—H9108.2C19—C18—H18121.0
C11—C10—C12110.83 (12)C14—C19—C18121.75 (15)
C11—C10—C9109.67 (12)C14—C19—C20109.52 (13)
C12—C10—C9112.68 (12)C18—C19—C20128.74 (14)
C11—C10—H10107.8O2—C20—C19126.32 (14)
C12—C10—H10107.8O2—C20—C12125.82 (14)
C9—C10—H10107.8C19—C20—C12107.85 (12)
Hydrogen-bond geometry (Å, º) top
Cg1 is the centroid of the C14–C19 benzene ring.
D—H···AD—HH···AD···AD—H···A
C12—H12···O1i1.002.553.2317 (19)125
C3—H3···Cg1i0.952.623.5395 (17)163
C11—H11C···Cg1ii0.982.993.6481 (18)126
Symmetry codes: (i) x+1, y+1, z; (ii) x+2, y+1, z+1.

Experimental details

Crystal data
Chemical formulaC20H18O2
Mr290.34
Crystal system, space groupTriclinic, P1
Temperature (K)100
a, b, c (Å)7.9225 (6), 10.1226 (8), 10.3927 (7)
α, β, γ (°)103.200 (6), 103.304 (6), 109.462 (7)
V3)721.25 (9)
Z2
Radiation typeMo Kα
µ (mm1)0.09
Crystal size (mm)0.40 × 0.20 × 0.10
Data collection
DiffractometerAgilent SuperNova Dual
diffractometer with an Atlas detector
Absorption correctionMulti-scan
(CrysAlis PRO; Agilent, 2012)
Tmin, Tmax0.748, 1.000
No. of measured, independent and
observed [I > 2σ(I)] reflections
4961, 3299, 2663
Rint0.021
(sin θ/λ)max1)0.651
Refinement
R[F2 > 2σ(F2)], wR(F2), S 0.048, 0.130, 1.05
No. of reflections3299
No. of parameters199
H-atom treatmentH-atom parameters constrained
Δρmax, Δρmin (e Å3)0.29, 0.23

Computer programs: CrysAlis PRO (Agilent, 2012), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), ORTEP-3 for Windows (Farrugia, 1997) and DIAMOND (Brandenburg, 2006), publCIF (Westrip, 2010).

Hydrogen-bond geometry (Å, º) top
Cg1 is the centroid of the C14–C19 benzene ring.
D—H···AD—HH···AD···AD—H···A
C12—H12···O1i1.002.553.2317 (19)125
C3—H3···Cg1i0.952.623.5395 (17)163
C11—H11C···Cg1ii0.982.993.6481 (18)126
Symmetry codes: (i) x+1, y+1, z; (ii) x+2, y+1, z+1.
 

Footnotes

Additional correspondence author, e-mail: aasiri2@kau.edu.sa.

Acknowledgements

The authors are grateful to King Abdulaziz University for providing research facilities. We also thank the Ministry of Higher Education (Malaysia) for funding structural studies through the High-Impact Research scheme (UM.C/HIR/MOHE/SC/12).

References

First citationAgilent (2012). CrysAlis PRO. Agilent Technologies, Yarnton, England.  Google Scholar
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