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

Journal logoCRYSTALLOGRAPHIC
COMMUNICATIONS
ISSN: 2056-9890

Di­chloridobis[2-(2-fur­yl)-1-(2-furylmeth­yl)-1H-benzimidazole-κN3]cadmium(II)

aPharmacy College, Henan University of Traditional Chinese Medicine, Zhengzhou 450008, People's Republic of China
*Correspondence e-mail: yanghuaixia888@163.com

(Received 18 August 2010; accepted 26 August 2010; online 4 September 2010)

In the title complex, [CdCl2(C16H12N2O2)2], the CdII ion exhibits site symmetry 2. It shows a distorted tetra­hedral coordination defined by two N atoms from symmetry-related 2-(2-fur­yl)-1-(2-furylmeth­yl)-1H-benzimidazole ligands and by two symmetry-related Cl atoms. Intra­molecular C—H⋯O hydrogen bonds stabilize the mol­ecular configuration. Adjacent mol­ecules are linked through C—H⋯Cl hydrogen bonds into a network structure.

Related literature

For background to benzimidazoles, see: Shen & Yuan (2006[Shen, X.-P. & Yuan, A.-H. (2006). Acta Cryst. E62, m2849-m2850.]); Yang et al. (2008[Yang, H.-X., Meng, X.-R., Liu, Y., Hou, H.-W., Fan, Y.-T. & Shen, X.-Q. (2008). J. Solid State Chem. 181, 2178-2184.]). For background to CdII complexes, see: Meng et al. (2004[Meng, X.-R., Song, Y.-L., Hou, H.-W., Han, H.-Y., Xiao, B., Fan, Y.-T. & Zhu, Y. (2004). Inorg. Chem. 43, 3528-3536.]); Yang et al. (2010[Yang, H.-X., Zhang, J., Ding, Y.-N. & Meng, X.-R. (2010). Acta Cryst. E66, m578.]).

[Scheme 1]

Experimental

Crystal data
  • [CdCl2(C16H12N2O2)2]

  • Mr = 711.85

  • Monoclinic, C 2/c

  • a = 18.397 (4) Å

  • b = 10.451 (2) Å

  • c = 17.470 (3) Å

  • β = 116.72 (3)°

  • V = 3000.2 (13) Å3

  • Z = 4

  • Mo Kα radiation

  • μ = 0.95 mm−1

  • T = 293 K

  • 0.21 × 0.19 × 0.16 mm

Data collection
  • Rigaku Saturn diffractometer

  • Absorption correction: multi-scan (REQAB; Jacobson, 1998[Jacobson, R. (1998). REQAB. Private communication to the Rigaku Corporation, Tokyo, Japan.]) Tmin = 0.825, Tmax = 0.863

  • 10628 measured reflections

  • 2953 independent reflections

  • 2565 reflections with I > 2σ(I)

  • Rint = 0.039

Refinement
  • R[F2 > 2σ(F2)] = 0.048

  • wR(F2) = 0.110

  • S = 1.10

  • 2953 reflections

  • 195 parameters

  • H-atom parameters constrained

  • Δρmax = 0.34 e Å−3

  • Δρmin = −0.47 e Å−3

Table 1
Selected geometric parameters (Å, °)

Cd1—N1 2.252 (3)
Cd1—Cl1 2.4513 (12)
N1i—Cd1—N1 118.17 (15)
N1i—Cd1—Cl1 109.08 (8)
N1—Cd1—Cl1 106.27 (8)
Cl1i—Cd1—Cl1 107.57 (6)
Symmetry code: (i) [-x+1, y, -z+{\script{1\over 2}}].

Table 2
Hydrogen-bond geometry (Å, °)

D—H⋯A D—H H⋯A DA D—H⋯A
C5—H5A⋯Cl1ii 0.93 2.82 3.694 (5) 156
C9—H9A⋯O2 0.93 2.49 3.256 (6) 140
Symmetry code: (ii) -x+1, -y, -z.

Data collection: CrystalClear (Rigaku/MSC, 2006[Rigaku/MSC (2006). CrystalClear. Rigaku/MSC, The Woodlands, Texas, USA.]); cell refinement: CrystalClear; data reduction: CrystalClear; 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: XP in SHELXTL (Sheldrick, 2008[Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.]); software used to prepare material for publication: SHELXTL.

Supporting information


Comment top

Benzimidazole and its derivatives have attracted interest because of their biological activities as well as their abilities to bind to different metal ions (Shen & Yuan, 2006; Yang et al., 2008). The CdII ion is a good model atom to construct complexes owing to its property to form bonds with different donors simultaneously, and to its various coordination modes (Meng et al., 2004; Yang et al., 2010). In this work, we describe the synthesis and structure of the title complex, [CdCl2(C16H12N2O2)2], (I).

In the structure of (I), two 2-(furan-2-yl)-1-(furan-2-yl-methyl)-1H-1,3-benzimidazole ligands and two Cl atoms coordinate to the CdII ion which is located on a twofold rotation axis. As expected, the Cd—Cl bond length is slightly longer than the Cd—N bond length. The environment around the CdII ion can be best described as distorted tetrahedral (Fig.1).

Intramolecular C—H···O hydrogen bonds stabilize the molecular configuration and C—H···Cl hydrogen bonds between adjacent molecules consolidate the crystal packing.

Related literature top

For background to benzimidazoles, see: Shen & Yuan (2006); Yang et al. (2008). For background to CdII complexes, see: Meng et al. (2004); Yang et al. (2010).

Experimental top

The ligand 2-(furan-2-yl)-1-(furan-2-yl-methyl)-1H-1,3-benzimidazole (0.04 mmol) in methanol (7 ml) was added dropwise to a methanol solution (5 ml) of CdCl2 (0.02 mmol). The resulting solution was allowed to stand at room temperature. After one week colorless crystals with good quality were obtained from the filtrate and dried in air.

Refinement top

H atoms were positioned geometrically and refined as riding atoms, with C-H = 0.93 (aromatic) and 0.97 (CH2) Å and with Uiso(H) = 1.2 Ueq(C).

Computing details top

Data collection: CrystalClear (Rigaku/MSC, 2006); cell refinement: CrystalClear (Rigaku/MSC, 2006); data reduction: CrystalClear (Rigaku/MSC, 2006); program(s) used to solve structure: SHELXL97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: XP in SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).

Figures top
[Figure 1] Fig. 1. View of the title complex, showing the labelled atoms and displacement ellipsoids at the 30% probability level. H atoms were omitted for clarity. [Symmetry code A: -x+1, y, -z+0.5.]
Dichloridobis[2-(2-furyl)-1-(2-furylmethyl)-1H-benzimidazole- κN3]cadmium(II) top
Crystal data top
[CdCl2(C16H12N2O2)2]F(000) = 1432
Mr = 711.85Dx = 1.576 Mg m3
Monoclinic, C2/cMo Kα radiation, λ = 0.71073 Å
Hall symbol: -C 2ycCell parameters from 4133 reflections
a = 18.397 (4) Åθ = 2.3–27.9°
b = 10.451 (2) ŵ = 0.95 mm1
c = 17.470 (3) ÅT = 293 K
β = 116.72 (3)°Prism, colorless
V = 3000.2 (13) Å30.21 × 0.19 × 0.16 mm
Z = 4
Data collection top
Rigaku Saturn
diffractometer
2953 independent reflections
Radiation source: fine-focus sealed tube2565 reflections with I > 2σ(I)
Graphite monochromatorRint = 0.039
Detector resolution: 28.5714 pixels mm-1θmax = 26.0°, θmin = 2.3°
ω scansh = 2222
Absorption correction: multi-scan
(REQAB; Jacobson, 1998)
k = 1210
Tmin = 0.825, Tmax = 0.863l = 2121
10628 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) = 0.110H-atom parameters constrained
S = 1.10 w = 1/[σ2(Fo2) + (0.0536P)2]
where P = (Fo2 + 2Fc2)/3
2953 reflections(Δ/σ)max < 0.001
195 parametersΔρmax = 0.34 e Å3
0 restraintsΔρmin = 0.47 e Å3
Crystal data top
[CdCl2(C16H12N2O2)2]V = 3000.2 (13) Å3
Mr = 711.85Z = 4
Monoclinic, C2/cMo Kα radiation
a = 18.397 (4) ŵ = 0.95 mm1
b = 10.451 (2) ÅT = 293 K
c = 17.470 (3) Å0.21 × 0.19 × 0.16 mm
β = 116.72 (3)°
Data collection top
Rigaku Saturn
diffractometer
2953 independent reflections
Absorption correction: multi-scan
(REQAB; Jacobson, 1998)
2565 reflections with I > 2σ(I)
Tmin = 0.825, Tmax = 0.863Rint = 0.039
10628 measured reflections
Refinement top
R[F2 > 2σ(F2)] = 0.0480 restraints
wR(F2) = 0.110H-atom parameters constrained
S = 1.10Δρmax = 0.34 e Å3
2953 reflectionsΔρmin = 0.47 e Å3
195 parameters
Special details top

Geometry. All esds (except the esd in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell esds are taken into account individually in the estimation of esds in distances, angles and torsion angles; correlations between esds in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell esds is used for estimating esds 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 > 2sigma(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
Cd10.50000.08924 (3)0.25000.04422 (17)
Cl10.61483 (7)0.22781 (11)0.27047 (8)0.0670 (3)
O10.6047 (2)0.1489 (3)0.2577 (2)0.0742 (9)
O20.3968 (2)0.4328 (3)0.0331 (2)0.0822 (11)
N10.46860 (17)0.0215 (3)0.12856 (19)0.0401 (7)
N20.46152 (18)0.1695 (3)0.0334 (2)0.0439 (7)
C10.4133 (2)0.0189 (3)0.0476 (2)0.0400 (9)
C20.3666 (2)0.1304 (4)0.0213 (3)0.0487 (10)
H2A0.36930.19270.06050.058*
C30.3166 (2)0.1443 (4)0.0649 (3)0.0552 (11)
H3A0.28460.21730.08420.066*
C40.3126 (3)0.0521 (5)0.1240 (3)0.0613 (12)
H4A0.27820.06530.18180.074*
C50.3582 (3)0.0584 (4)0.0994 (3)0.0541 (11)
H5A0.35560.12020.13880.065*
C60.4083 (2)0.0723 (3)0.0121 (3)0.0426 (9)
C70.4950 (2)0.1349 (3)0.1171 (2)0.0407 (8)
C80.5529 (2)0.2124 (4)0.1863 (3)0.0476 (9)
C90.5623 (3)0.3387 (4)0.1971 (3)0.0574 (11)
H9A0.53300.40160.15760.069*
C100.6258 (3)0.3579 (6)0.2805 (4)0.0835 (17)
H10A0.64690.43630.30600.100*
C110.6496 (3)0.2440 (7)0.3154 (3)0.0882 (17)
H11A0.69050.22940.37050.106*
C120.4755 (2)0.2850 (4)0.0060 (3)0.0520 (10)
H12A0.48170.26090.05640.062*
H12B0.52570.32540.03420.062*
C130.4077 (3)0.3782 (4)0.0311 (3)0.0532 (11)
C140.3522 (3)0.4196 (4)0.1061 (3)0.0719 (14)
H14A0.34730.39720.15970.086*
C150.3012 (3)0.5054 (5)0.0888 (4)0.0888 (19)
H15A0.25640.54980.12900.107*
C160.3296 (4)0.5097 (5)0.0057 (5)0.097 (2)
H16A0.30730.55810.02320.117*
Atomic displacement parameters (Å2) top
U11U22U33U12U13U23
Cd10.0472 (3)0.0419 (3)0.0376 (2)0.0000.01378 (19)0.000
Cl10.0685 (7)0.0712 (8)0.0582 (7)0.0256 (6)0.0256 (6)0.0060 (6)
O10.076 (2)0.082 (2)0.057 (2)0.0048 (19)0.0234 (18)0.0035 (18)
O20.103 (3)0.079 (2)0.077 (2)0.046 (2)0.052 (2)0.0202 (18)
N10.0410 (17)0.0379 (18)0.0373 (17)0.0028 (14)0.0141 (14)0.0035 (13)
N20.0451 (18)0.0402 (18)0.0467 (19)0.0071 (15)0.0209 (15)0.0041 (15)
C10.037 (2)0.042 (2)0.038 (2)0.0097 (16)0.0150 (17)0.0002 (16)
C20.044 (2)0.047 (2)0.053 (2)0.0025 (18)0.0194 (19)0.0037 (19)
C30.046 (2)0.061 (3)0.050 (3)0.001 (2)0.013 (2)0.017 (2)
C40.053 (3)0.076 (3)0.038 (2)0.012 (2)0.006 (2)0.010 (2)
C50.053 (3)0.065 (3)0.042 (2)0.018 (2)0.019 (2)0.008 (2)
C60.040 (2)0.045 (2)0.042 (2)0.0131 (17)0.0170 (17)0.0022 (17)
C70.040 (2)0.039 (2)0.041 (2)0.0060 (17)0.0168 (17)0.0031 (16)
C80.043 (2)0.052 (2)0.049 (2)0.0006 (19)0.0220 (19)0.0009 (19)
C90.062 (3)0.040 (2)0.063 (3)0.012 (2)0.021 (2)0.003 (2)
C100.080 (4)0.085 (4)0.084 (4)0.045 (3)0.035 (3)0.037 (3)
C110.060 (3)0.134 (5)0.056 (3)0.006 (4)0.013 (3)0.018 (4)
C120.057 (3)0.049 (2)0.057 (3)0.0098 (19)0.033 (2)0.0160 (19)
C130.059 (3)0.040 (2)0.065 (3)0.0088 (19)0.031 (2)0.009 (2)
C140.079 (4)0.052 (3)0.066 (3)0.014 (2)0.016 (3)0.002 (2)
C150.074 (4)0.051 (3)0.111 (5)0.021 (3)0.015 (4)0.008 (3)
C160.099 (5)0.077 (4)0.125 (6)0.045 (3)0.059 (4)0.012 (4)
Geometric parameters (Å, º) top
Cd1—N1i2.252 (3)C4—H4A0.9300
Cd1—N12.252 (3)C5—C61.389 (5)
Cd1—Cl1i2.4513 (12)C5—H5A0.9300
Cd1—Cl12.4513 (12)C7—C81.447 (5)
O1—C81.354 (5)C8—C91.334 (5)
O1—C111.392 (6)C9—C101.414 (7)
O2—C131.352 (5)C9—H9A0.9300
O2—C161.372 (6)C10—C111.319 (7)
N1—C71.330 (5)C10—H10A0.9300
N1—C11.386 (4)C11—H11A0.9300
N2—C71.356 (5)C12—C131.484 (5)
N2—C61.387 (5)C12—H12A0.9700
N2—C121.469 (5)C12—H12B0.9700
C1—C61.386 (5)C13—C141.320 (6)
C1—C21.396 (5)C14—C151.424 (7)
C2—C31.374 (6)C14—H14A0.9300
C2—H2A0.9300C15—C161.305 (8)
C3—C41.390 (6)C15—H15A0.9300
C3—H3A0.9300C16—H16A0.9300
C4—C51.378 (6)
N1i—Cd1—N1118.17 (15)N1—C7—C8123.6 (3)
N1i—Cd1—Cl1i106.27 (8)N2—C7—C8124.0 (3)
N1—Cd1—Cl1i109.08 (8)C9—C8—O1111.2 (4)
N1i—Cd1—Cl1109.08 (8)C9—C8—C7132.2 (4)
N1—Cd1—Cl1106.27 (8)O1—C8—C7116.4 (4)
Cl1i—Cd1—Cl1107.57 (6)C8—C9—C10106.3 (4)
C8—O1—C11105.1 (4)C8—C9—H9A126.8
C13—O2—C16105.9 (4)C10—C9—H9A126.8
C7—N1—C1105.5 (3)C11—C10—C9107.3 (4)
C7—N1—Cd1130.1 (2)C11—C10—H10A126.4
C1—N1—Cd1124.4 (2)C9—C10—H10A126.4
C7—N2—C6106.5 (3)C10—C11—O1110.1 (5)
C7—N2—C12129.4 (3)C10—C11—H11A125.0
C6—N2—C12124.1 (3)O1—C11—H11A125.0
N1—C1—C6109.2 (3)N2—C12—C13112.1 (3)
N1—C1—C2130.6 (4)N2—C12—H12A109.2
C6—C1—C2120.2 (4)C13—C12—H12A109.2
C3—C2—C1117.3 (4)N2—C12—H12B109.2
C3—C2—H2A121.4C13—C12—H12B109.2
C1—C2—H2A121.4H12A—C12—H12B107.9
C2—C3—C4121.8 (4)C14—C13—O2110.3 (4)
C2—C3—H3A119.1C14—C13—C12133.0 (5)
C4—C3—H3A119.1O2—C13—C12116.7 (4)
C3—C4—C5121.8 (4)C13—C14—C15106.7 (5)
C3—C4—H4A119.1C13—C14—H14A126.7
C5—C4—H4A119.1C15—C14—H14A126.7
C4—C5—C6116.2 (4)C16—C15—C14106.5 (5)
C4—C5—H5A121.9C16—C15—H15A126.7
C6—C5—H5A121.9C14—C15—H15A126.7
N2—C6—C1106.3 (3)C15—C16—O2110.5 (5)
N2—C6—C5130.9 (4)C15—C16—H16A124.7
C1—C6—C5122.7 (4)O2—C16—H16A124.7
N1—C7—N2112.4 (3)
N1i—Cd1—N1—C731.3 (3)Cd1—N1—C7—C80.1 (5)
Cl1i—Cd1—N1—C7152.8 (3)C6—N2—C7—N11.3 (4)
Cl1—Cd1—N1—C791.5 (3)C12—N2—C7—N1178.8 (3)
N1i—Cd1—N1—C1147.1 (3)C6—N2—C7—C8178.6 (4)
Cl1i—Cd1—N1—C125.7 (3)C12—N2—C7—C81.3 (6)
Cl1—Cd1—N1—C190.0 (3)C11—O1—C8—C90.9 (5)
C7—N1—C1—C60.8 (4)C11—O1—C8—C7176.4 (4)
Cd1—N1—C1—C6179.6 (2)N1—C7—C8—C9147.9 (5)
C7—N1—C1—C2179.6 (4)N2—C7—C8—C932.1 (7)
Cd1—N1—C1—C20.8 (5)N1—C7—C8—O126.4 (6)
N1—C1—C2—C3179.7 (4)N2—C7—C8—O1153.6 (4)
C6—C1—C2—C30.2 (5)O1—C8—C9—C101.3 (5)
C1—C2—C3—C40.4 (6)C7—C8—C9—C10175.8 (5)
C2—C3—C4—C50.3 (7)C8—C9—C10—C111.2 (6)
C3—C4—C5—C60.0 (6)C9—C10—C11—O10.6 (7)
C7—N2—C6—C10.7 (4)C8—O1—C11—C100.1 (6)
C12—N2—C6—C1179.4 (3)C7—N2—C12—C13103.6 (5)
C7—N2—C6—C5179.8 (4)C6—N2—C12—C1376.2 (5)
C12—N2—C6—C50.1 (6)C16—O2—C13—C141.3 (6)
N1—C1—C6—N20.0 (4)C16—O2—C13—C12177.5 (4)
C2—C1—C6—N2179.7 (3)N2—C12—C13—C14112.3 (6)
N1—C1—C6—C5179.5 (3)N2—C12—C13—O266.1 (5)
C2—C1—C6—C50.1 (6)O2—C13—C14—C150.9 (6)
C4—C5—C6—N2179.6 (4)C12—C13—C14—C15177.6 (5)
C4—C5—C6—C10.2 (6)C13—C14—C15—C160.2 (7)
C1—N1—C7—N21.3 (4)C14—C15—C16—O20.6 (7)
Cd1—N1—C7—N2180.0 (2)C13—O2—C16—C151.2 (7)
C1—N1—C7—C8178.6 (4)
Symmetry code: (i) x+1, y, z+1/2.
Hydrogen-bond geometry (Å, º) top
D—H···AD—HH···AD···AD—H···A
C5—H5A···Cl1ii0.932.823.694 (5)156
C9—H9A···O20.932.493.256 (6)140
Symmetry code: (ii) x+1, y, z.

Experimental details

Crystal data
Chemical formula[CdCl2(C16H12N2O2)2]
Mr711.85
Crystal system, space groupMonoclinic, C2/c
Temperature (K)293
a, b, c (Å)18.397 (4), 10.451 (2), 17.470 (3)
β (°) 116.72 (3)
V3)3000.2 (13)
Z4
Radiation typeMo Kα
µ (mm1)0.95
Crystal size (mm)0.21 × 0.19 × 0.16
Data collection
DiffractometerRigaku Saturn
diffractometer
Absorption correctionMulti-scan
(REQAB; Jacobson, 1998)
Tmin, Tmax0.825, 0.863
No. of measured, independent and
observed [I > 2σ(I)] reflections
10628, 2953, 2565
Rint0.039
(sin θ/λ)max1)0.617
Refinement
R[F2 > 2σ(F2)], wR(F2), S 0.048, 0.110, 1.10
No. of reflections2953
No. of parameters195
H-atom treatmentH-atom parameters constrained
Δρmax, Δρmin (e Å3)0.34, 0.47

Computer programs: CrystalClear (Rigaku/MSC, 2006), SHELXL97 (Sheldrick, 2008), XP in SHELXTL (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).

Selected geometric parameters (Å, º) top
Cd1—N12.252 (3)Cd1—Cl12.4513 (12)
N1i—Cd1—N1118.17 (15)N1—Cd1—Cl1106.27 (8)
N1i—Cd1—Cl1109.08 (8)Cl1i—Cd1—Cl1107.57 (6)
Symmetry code: (i) x+1, y, z+1/2.
Hydrogen-bond geometry (Å, º) top
D—H···AD—HH···AD···AD—H···A
C5—H5A···Cl1ii0.932.823.694 (5)156.3
C9—H9A···O20.932.493.256 (6)139.5
Symmetry code: (ii) x+1, y, z.
 

Acknowledgements

The study was supported by the Science and Technology Department of Henan Province (082102330003).

References

First citationJacobson, R. (1998). REQAB. Private communication to the Rigaku Corporation, Tokyo, Japan.  Google Scholar
First citationMeng, X.-R., Song, Y.-L., Hou, H.-W., Han, H.-Y., Xiao, B., Fan, Y.-T. & Zhu, Y. (2004). Inorg. Chem. 43, 3528–3536.  Web of Science CSD CrossRef PubMed CAS Google Scholar
First citationRigaku/MSC (2006). CrystalClear. Rigaku/MSC, The Woodlands, Texas, USA.  Google Scholar
First citationSheldrick, G. M. (2008). Acta Cryst. A64, 112–122.  Web of Science CrossRef CAS IUCr Journals Google Scholar
First citationShen, X.-P. & Yuan, A.-H. (2006). Acta Cryst. E62, m2849–m2850.  Web of Science CSD CrossRef IUCr Journals Google Scholar
First citationYang, H.-X., Meng, X.-R., Liu, Y., Hou, H.-W., Fan, Y.-T. & Shen, X.-Q. (2008). J. Solid State Chem. 181, 2178–2184.  Web of Science CSD CrossRef CAS Google Scholar
First citationYang, H.-X., Zhang, J., Ding, Y.-N. & Meng, X.-R. (2010). Acta Cryst. E66, m578.  Web of Science CSD CrossRef 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