Literature DB >> 26958390

catena-Poly[bis(1,3-benzo-thia-zol-3-ium) [[di-chlorido-anti-monate(III)]-di-μ-chlorido-μ-oxido-[chlorido-anti-monate(III)]-μ-chlorido]].

Oussama Chebout1, Mhamed Boudraa1, Sofiane Bouacida2, Hocine Merazig1, Chaouki Boudaren1.   

Abstract

The title compound, {(C7H6NS)2[Sb2Cl6O]} n , contains two benzo-thia-zolidium cations and one tri-μ-chlorido-tri-chlorido-μ-oxido-di-anti-monate(III) anion. The structure of the inorganic cation may be described as as being built up from two polyhedra, i.e. a square-pyramidal SbCl4O and a distorted octa-hedral SbOCl5 unit, sharing a common face (comprising the O atom and two Cl atoms). The two benzo-thia-zole cations are quasi-planar and subtend a dihedral angle of 19.93 (5)°. The crystal packing can be described by alternating (100) layers and [001] chains of the organic cations and inorganic anions connected through an extensive three-dimensional network of N-H⋯Cl, C-H⋯O and C-H⋯Cl hydrogen bonds. This is consolidated by slipped π-π stacking, with centroid-to-centroid distances between the benzo-thia-zole rings of 3.7111 (18)-3.8452 (16) Å. These inter-actions link the mol-ecules within the layers and also link the layers together and reinforce the cohesion of the ionic structure.

Entities:  

Keywords:  anti­mony; crystal structure; hydrogen bonding; organic–inorganic hybrid compound; π–π stacking

Year:  2016        PMID: 26958390      PMCID: PMC4770971          DOI: 10.1107/S2056989016000785

Source DB:  PubMed          Journal:  Acta Crystallogr E Crystallogr Commun


Chemical context

The coordination chemistry of anti­mony has both a practical and theoretical inter­est (Abboud et al., 2007 ▸; Bujak & Angel, 2006 ▸). Recently, the use of anti­mony complexes in cancer chemotherapy has become a topic of inter­est (Demicheli et al., 2006 ▸; Rais et al., 2000 ▸). As part of our ongoing studies of benzo­thia­zole-based coordination networks (Bouchareb et al., 2014 ▸), we now report the polymeric structure of new organic–inorganic hybrid compound {(C7H6NS)2[Sb2Cl6O]}, (I).

Structural commentary

The title compound contains two benzo­thia­zolidium cations and one tri-μ-chlorido-tri­chlorido-μ-oxido-di­anti­monate(III) anion (Sb2Cl6O2−). The mol­ecular geometry and the atom-numbering scheme are shown in Fig. 1 ▸.
Figure 1

The asymmetric unit of (I), showing the atom-numbering scheme. Displacement ellipsoids are drawn at the 50% probability level.

The structure of the inorganic anion may be described as two polyhedra, square-pyramidal SbCl4O and distorted octa­hedral SbOCl5, sharing a common face (O1, Cl5 and Cl6). In the first polyhedron, four Cl atoms (Cl3Cl4Cl5–Cl6) form a basal plane with the Sb1 atom lying 0.3011 (2) Å below the plane. The apical position is occupied by the O1 atom. In the second polyhedron, the O1 atom occupies the apical position and four Cl atoms (Cl1Cl2Cl5–Cl6) form the base equatorial plane with Sb2 displaced by 0.4168 (1) Å from it. The geometry of the Sb2 atom can be described as distorted octa­hedral, a sixth coordination is observed at a longer distance, with Sb2 coordinated by the adjacent Cl3i atom at a distance of 3.546 (4) Å [symmetry code: (i)  − x,  + y,  − z], forming an infinite chain parallel to [001] (Fig. 2 ▸). This distance is significantly shorter than the sum of the relevant van der Waals radii of 4.01 Å (rSb = 2.1 Å and rCl = 1.91 Å) and in good agreement with those found in [SbCl3(C25H22O2P2)] (Razak et al., 1999 ▸) and in [(CH3)2NH(CH2)2NH3][SbCl5] (Bujak & Angel, 2006 ▸). In this mol­ecule, the angle between the two equatorial planes is 75.86 (2)°.
Figure 2

View of a polymeric chain of Sb2Cl6O along the c axis.

The Sb—O bridge distances of 1.9404 (16) and 1.9460 (17) Å are similar to those found in the Sb2Cl6O2 moiety (Abboud et al., 2007 ▸). Excluding the longest bond (Sb2Cl3i), the terminal SbCl bonds are in the range 2.3974 (8)–2.4982 (8) Å and are shorter than the bridging bonds [2.7522 (8)–3.3244 (9) Å] and are in good agreement with those found in C26H28N8O6Sb4Cl10 (Abboud et al., 2007 ▸). However, the Sb—O—Sb bond angle is 123.56 (9)° which is very different to that observed in Cs2Sb2O2(OH)8 (Mikhaylov et al., 2011 ▸) and the Sb2Cl6O2 moiety (Abboud et al., 2007 ▸). The dihedral angle between the mean planes of the two benzo­thia­zole cations is 19.93 (5)°.

Supra­molecular features

The crystal packing can be described by alternating (100) layers and [001] chains of organic cations and inorganic anions connected through an extensive network of N—H⋯Cl, C—H⋯O and C—H⋯Cl hydrogen bonds, leading to the formation of a three-dimensional network (Table 1 ▸, Fig. 3 ▸). The packing is consolidated by slipped π–π stacking with centroid-to-centroid distances of 3.7111 (18)–3.8452 (16) Å between the benzo­thia­zole rings. These inter­actions link the mol­ecules within the layers and also link the layers together, reinforcing the cohesion of the ionic structure.
Table 1

Hydrogen-bond geometry (Å, °)

D—H⋯A D—HH⋯A DA D—H⋯A
N1—H1N⋯Cl6i 0.862.373.200 (3)162
N2—H2N⋯Cl6ii 0.862.353.145 (3)153
C1—H1⋯O10.932.273.152 (4)159
C8—H8⋯Cl5iii 0.932.723.327 (3)124
C10—H10⋯Cl3iv 0.932.783.612 (3)150
C13—H13⋯Cl2ii 0.932.763.524 (3)140

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

Figure 3

Part of diagram packing of the title compound, viewed along the a axis, showing alternating chains and layers connected by N—H⋯Cl and C—H⋯Cl hydrogen bonds (shown as dashed lines).

Synthesis and crystallization

A solution of SbCl3 (45.6 mg, 0.2 mmol) in water (10 ml) was added dropwise to a solution of benzo­thia­zole (0.5 ml, 4.6 mmol) in ethanol (10 ml). The mixture was then refluxed with stirring for 3 h and the resulting solution was left to stand at room temperature. Colorless crystals were obtained after several days.

Refinement

Crystal data, data collection and structure refinement details are summarized in Table 2 ▸. Approximate positions for all H atoms were first obtained from the difference electron density map. However, the H atoms were placed into idealized positions and refined using the riding-atom approximation. The applied constraints were: C—H = 0.93 Å and N—H = 0.86 Å, U iso = 1.2U eq(C or N).
Table 2

Experimental details

Crystal data
Chemical formula(C7H6NS)2[Sb2Cl6O]
M r 744.58
Crystal system, space groupMonoclinic, P21/c
Temperature (K)295
a, b, c (Å)10.2826 (2), 16.2448 (3), 14.9849 (3)
β (°)111.674 (1)
V3)2326.09 (8)
Z 4
Radiation typeMo Kα
μ (mm−1)3.20
Crystal size (mm)0.17 × 0.13 × 0.11
 
Data collection
DiffractometerBruker APEXII CCD
Absorption correctionMulti-scan (SADABS; Sheldrick, 2002)
T min, T max 0.630, 0.746
No. of measured, independent and observed [I > 2σ(I)] reflections20349, 5344, 4627
R int 0.026
(sin θ/λ)max−1)0.651
 
Refinement
R[F 2 > 2σ(F 2)], wR(F 2), S 0.022, 0.050, 1.02
No. of reflections5344
No. of parameters244
H-atom treatmentH-atom parameters constrained
Δρmax, Δρmin (e Å−3)0.54, −0.77

Computer programs: APEX2 and SAINT (Bruker, 2011 ▸), SIR2002 (Burla et al., 2005 ▸), SHELXL97 (Sheldrick, 2008 ▸), ORTEP-3 for Windows and WinGX (Farrugia, 2012 ▸) and DIAMOND (Brandenburg & Berndt, 2001 ▸).

Crystal structure: contains datablock(s) I. DOI: 10.1107/S2056989016000785/hg5468sup1.cif Structure factors: contains datablock(s) I. DOI: 10.1107/S2056989016000785/hg5468Isup2.hkl CCDC reference: 1447413 Additional supporting information: crystallographic information; 3D view; checkCIF report
(C7H6NS)2[Sb2Cl6O]F(000) = 1416
Mr = 744.58Dx = 2.126 Mg m3
Monoclinic, P21/cMo Kα radiation, λ = 0.71073 Å
Hall symbol: -P 2ybcCell parameters from 8790 reflections
a = 10.2826 (2) Åθ = 2.5–27.5°
b = 16.2448 (3) ŵ = 3.20 mm1
c = 14.9849 (3) ÅT = 295 K
β = 111.674 (1)°Block, colorless
V = 2326.09 (8) Å30.17 × 0.13 × 0.11 mm
Z = 4
Bruker APEXII CCD diffractometer5344 independent reflections
Radiation source: sealed tube4627 reflections with I > 2σ(I)
Graphite monochromatorRint = 0.026
φ and ω scansθmax = 27.5°, θmin = 2.9°
Absorption correction: multi-scan (SADABS; Sheldrick, 2002)h = −11→13
Tmin = 0.630, Tmax = 0.746k = −19→21
20349 measured reflectionsl = −19→18
Refinement on F2Primary atom site location: structure-invariant direct methods
Least-squares matrix: fullSecondary atom site location: difference Fourier map
R[F2 > 2σ(F2)] = 0.022Hydrogen site location: inferred from neighbouring sites
wR(F2) = 0.050H-atom parameters constrained
S = 1.02w = 1/[σ2(Fo2) + (0.0186P)2 + 1.5448P] where P = (Fo2 + 2Fc2)/3
5344 reflections(Δ/σ)max = 0.001
244 parametersΔρmax = 0.54 e Å3
0 restraintsΔρmin = −0.77 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
S10.36748 (12)0.17148 (5)0.98344 (7)0.0662 (3)
N10.1904 (3)0.05865 (18)0.94373 (19)0.0539 (7)
H1N0.1140.03190.91560.065*
C10.2113 (4)0.1303 (2)0.9189 (2)0.0653 (10)
H10.14480.15820.86830.078*
C20.4125 (3)0.08232 (16)1.05140 (19)0.0386 (6)
C30.5374 (3)0.0621 (2)1.1261 (2)0.0509 (8)
H30.6120.09881.1470.061*
C40.5459 (3)−0.0141 (2)1.1676 (2)0.0528 (8)
H40.6282−0.02931.21720.063*
C50.4350 (4)−0.0684 (2)1.1374 (2)0.0516 (8)
H50.4439−0.11911.16780.062*
C60.3131 (3)−0.04978 (18)1.0645 (2)0.0474 (7)
H60.2391−0.0871.04430.057*
C70.3030 (3)0.02653 (17)1.02135 (19)0.0372 (6)
S20.52690 (8)0.11063 (4)0.59703 (6)0.04448 (17)
N20.7036 (2)0.00265 (15)0.68158 (18)0.0436 (6)
H2N0.7828−0.02030.71270.052*
C80.6923 (3)0.07956 (18)0.6561 (2)0.0465 (7)
H80.7690.11430.66950.056*
C90.4653 (3)0.01241 (16)0.60657 (18)0.0339 (6)
C100.3292 (3)−0.01737 (19)0.5748 (2)0.0431 (7)
H100.25330.01660.54330.052*
C110.3111 (3)−0.0985 (2)0.5917 (2)0.0501 (7)
H110.2208−0.11990.57120.06*
C120.4237 (3)−0.15006 (19)0.6385 (2)0.0530 (8)
H120.4069−0.2050.64820.064*
C130.5579 (3)−0.12215 (18)0.6705 (2)0.0481 (7)
H130.6331−0.15670.70160.058*
C140.5770 (3)−0.03964 (16)0.65440 (19)0.0359 (6)
Sb1−0.067085 (18)0.323213 (10)0.767483 (12)0.03143 (5)
Sb20.053422 (18)0.221298 (11)0.613337 (12)0.03397 (5)
Cl10.01992 (9)0.07748 (5)0.63368 (7)0.0589 (2)
Cl20.30403 (7)0.20616 (5)0.68094 (6)0.05062 (18)
Cl30.13613 (8)0.35386 (5)0.91846 (5)0.05065 (18)
Cl4−0.14276 (8)0.21318 (5)0.84967 (6)0.05007 (18)
Cl5−0.24438 (8)0.26668 (4)0.59142 (6)0.04931 (18)
O10.05721 (19)0.24501 (12)0.74157 (12)0.0391 (4)
Cl60.04721 (8)0.42304 (5)0.64881 (6)0.0558 (2)
U11U22U33U12U13U23
S10.0921 (7)0.0379 (4)0.0703 (6)0.0017 (4)0.0319 (5)0.0061 (4)
N10.0376 (13)0.0731 (19)0.0455 (15)0.0001 (13)0.0092 (12)−0.0065 (14)
C10.073 (2)0.071 (2)0.0456 (19)0.042 (2)0.0148 (18)0.0111 (17)
C20.0497 (16)0.0334 (13)0.0350 (15)−0.0018 (12)0.0181 (13)−0.0021 (11)
C30.0474 (17)0.062 (2)0.0414 (17)−0.0141 (15)0.0139 (14)−0.0112 (15)
C40.0485 (18)0.076 (2)0.0313 (15)0.0127 (17)0.0116 (14)0.0045 (15)
C50.070 (2)0.0477 (17)0.0422 (17)0.0085 (16)0.0267 (17)0.0122 (14)
C60.0581 (19)0.0430 (16)0.0458 (17)−0.0131 (14)0.0247 (15)−0.0014 (13)
C70.0363 (14)0.0440 (15)0.0308 (14)0.0019 (12)0.0117 (12)−0.0024 (11)
S20.0533 (4)0.0327 (3)0.0566 (5)0.0085 (3)0.0310 (4)0.0065 (3)
N20.0318 (12)0.0456 (13)0.0510 (15)0.0069 (11)0.0125 (11)−0.0009 (11)
C80.0454 (17)0.0419 (16)0.060 (2)−0.0037 (13)0.0282 (15)−0.0071 (14)
C90.0385 (14)0.0333 (13)0.0329 (14)0.0054 (11)0.0168 (12)0.0027 (11)
C100.0368 (15)0.0549 (18)0.0368 (15)0.0077 (13)0.0125 (12)0.0067 (13)
C110.0422 (16)0.061 (2)0.0444 (17)−0.0152 (15)0.0135 (14)−0.0025 (15)
C120.062 (2)0.0387 (16)0.058 (2)−0.0107 (15)0.0214 (17)0.0041 (14)
C130.0533 (18)0.0384 (15)0.0495 (18)0.0097 (14)0.0153 (15)0.0106 (13)
C140.0344 (13)0.0375 (14)0.0357 (14)0.0054 (11)0.0127 (12)0.0011 (11)
Sb10.03409 (9)0.02825 (9)0.03458 (10)0.00560 (7)0.01575 (7)−0.00018 (7)
Sb20.03473 (10)0.04105 (10)0.02678 (9)0.00516 (8)0.01211 (7)−0.00064 (7)
Cl10.0568 (5)0.0425 (4)0.0830 (6)−0.0050 (4)0.0325 (4)−0.0093 (4)
Cl20.0351 (4)0.0611 (5)0.0567 (5)0.0025 (3)0.0181 (3)−0.0138 (4)
Cl30.0601 (5)0.0487 (4)0.0381 (4)−0.0131 (4)0.0122 (3)−0.0065 (3)
Cl40.0570 (4)0.0486 (4)0.0529 (4)−0.0093 (3)0.0301 (4)0.0031 (3)
Cl50.0457 (4)0.0430 (4)0.0491 (4)−0.0024 (3)0.0057 (3)0.0020 (3)
O10.0460 (11)0.0463 (11)0.0271 (9)0.0225 (9)0.0160 (8)0.0044 (8)
Cl60.0466 (4)0.0579 (5)0.0518 (5)−0.0107 (4)0.0051 (4)0.0103 (4)
S1—C11.678 (4)C8—H80.93
S1—C21.732 (3)C9—C101.388 (4)
N1—C11.265 (4)C9—C141.393 (3)
N1—C71.404 (4)C10—C111.368 (4)
N1—H1N0.8599C10—H100.93
C1—H10.93C11—C121.391 (4)
C2—C71.385 (4)C11—H110.93
C2—C31.396 (4)C12—C131.360 (4)
C3—C41.373 (5)C12—H120.93
C3—H30.93C13—C141.389 (4)
C4—C51.379 (4)C13—H130.93
C4—H40.93Sb1—O11.9404 (16)
C5—C61.358 (4)Sb1—Cl42.4545 (7)
C5—H50.93Sb1—Cl32.4982 (8)
C6—C71.384 (4)Sb1—Cl52.7522 (8)
C6—H60.93Sb1—Cl62.9524 (8)
S2—C81.679 (3)Sb2—O11.9460 (17)
S2—C91.742 (3)Sb2—Cl12.3974 (8)
N2—C81.299 (4)Sb2—Cl22.4081 (7)
N2—C141.392 (3)Sb2—Cl53.0473 (8)
N2—H2N0.8599Sb2—Cl63.3244 (9)
C1—S1—C289.81 (16)C9—C10—H10121.2
C1—N1—C7114.1 (3)C10—C11—C12121.9 (3)
C1—N1—H1N123C10—C11—H11119.1
C7—N1—H1N122.9C12—C11—H11119.1
N1—C1—S1115.3 (3)C13—C12—C11121.6 (3)
N1—C1—H1122.3C13—C12—H12119.2
S1—C1—H1122.3C11—C12—H12119.2
C7—C2—C3120.2 (3)C12—C13—C14116.8 (3)
C7—C2—S1110.3 (2)C12—C13—H13121.6
C3—C2—S1129.4 (2)C14—C13—H13121.6
C4—C3—C2117.5 (3)C13—C14—N2127.1 (3)
C4—C3—H3121.3C13—C14—C9122.1 (3)
C2—C3—H3121.3N2—C14—C9110.8 (2)
C3—C4—C5121.4 (3)O1—Sb1—Cl488.74 (6)
C3—C4—H4119.3O1—Sb1—Cl385.37 (6)
C5—C4—H4119.3Cl4—Sb1—Cl390.28 (3)
C6—C5—C4121.8 (3)O1—Sb1—Cl580.90 (6)
C6—C5—H5119.1Cl4—Sb1—Cl591.00 (3)
C4—C5—H5119.1Cl3—Sb1—Cl5166.17 (3)
C5—C6—C7117.6 (3)O1—Sb1—Cl678.52 (6)
C5—C6—H6121.2Cl4—Sb1—Cl6166.56 (3)
C7—C6—H6121.2Cl3—Sb1—Cl692.87 (2)
C6—C7—C2121.5 (3)Cl5—Sb1—Cl682.88 (2)
C6—C7—N1128.1 (3)O1—Sb2—Cl191.07 (6)
C2—C7—N1110.4 (3)O1—Sb2—Cl288.67 (6)
C8—S2—C990.54 (14)Cl1—Sb2—Cl291.64 (3)
C8—N2—C14114.6 (2)O1—Sb2—Cl573.22 (5)
C8—N2—H2N122.7Cl1—Sb2—Cl593.65 (2)
C14—N2—H2N122.7Cl2—Sb2—Cl5161.21 (2)
N2—C8—S2114.0 (2)O1—Sb2—Cl669.00 (6)
N2—C8—H8123Cl1—Sb2—Cl6158.15 (3)
S2—C8—H8123Cl2—Sb2—Cl696.56 (2)
C10—C9—C14120.0 (2)Cl5—Sb2—Cl672.59 (2)
C10—C9—S2130.0 (2)Sb1—Cl5—Sb272.175 (18)
C14—C9—S2110.0 (2)Sb1—O1—Sb2123.56 (9)
C11—C10—C9117.5 (3)Sb1—Cl6—Sb265.814 (16)
C11—C10—H10121.2
C7—N1—C1—S1−0.1 (4)C8—N2—C14—C9−1.1 (3)
C2—S1—C1—N10.8 (3)C10—C9—C14—C131.2 (4)
C1—S1—C2—C7−1.2 (2)S2—C9—C14—C13−178.9 (2)
C1—S1—C2—C3178.1 (3)C10—C9—C14—N2−178.8 (2)
C7—C2—C3—C4−0.2 (4)S2—C9—C14—N21.1 (3)
S1—C2—C3—C4−179.4 (2)O1—Sb1—Cl5—Sb2−17.75 (6)
C2—C3—C4—C5−0.6 (5)Cl4—Sb1—Cl5—Sb2−106.31 (2)
C3—C4—C5—C61.0 (5)Cl3—Sb1—Cl5—Sb2−11.07 (11)
C4—C5—C6—C7−0.5 (4)Cl6—Sb1—Cl5—Sb261.70 (2)
C5—C6—C7—C2−0.3 (4)O1—Sb2—Cl5—Sb118.27 (6)
C5—C6—C7—N1178.1 (3)Cl1—Sb2—Cl5—Sb1108.29 (3)
C3—C2—C7—C60.7 (4)Cl2—Sb2—Cl5—Sb12.25 (9)
S1—C2—C7—C6180.0 (2)Cl6—Sb2—Cl5—Sb1−54.403 (18)
C3—C2—C7—N1−178.0 (3)Cl4—Sb1—O1—Sb2124.26 (11)
S1—C2—C7—N11.3 (3)Cl3—Sb1—O1—Sb2−145.35 (12)
C1—N1—C7—C6−179.4 (3)Cl5—Sb1—O1—Sb233.05 (11)
C1—N1—C7—C2−0.8 (4)Cl6—Sb1—O1—Sb2−51.47 (11)
C14—N2—C8—S20.6 (3)Cl1—Sb2—O1—Sb1−124.01 (11)
C9—S2—C8—N20.1 (2)Cl2—Sb2—O1—Sb1144.37 (12)
C8—S2—C9—C10179.2 (3)Cl5—Sb2—O1—Sb1−30.53 (10)
C8—S2—C9—C14−0.7 (2)Cl6—Sb2—O1—Sb146.83 (10)
C14—C9—C10—C11−0.6 (4)O1—Sb1—Cl6—Sb224.73 (6)
S2—C9—C10—C11179.5 (2)Cl4—Sb1—Cl6—Sb26.05 (11)
C9—C10—C11—C12−0.1 (4)Cl3—Sb1—Cl6—Sb2109.41 (2)
C10—C11—C12—C130.4 (5)Cl5—Sb1—Cl6—Sb2−57.378 (18)
C11—C12—C13—C140.2 (5)O1—Sb2—Cl6—Sb1−25.97 (6)
C12—C13—C14—N2179.1 (3)Cl1—Sb2—Cl6—Sb1−0.64 (7)
C12—C13—C14—C9−1.0 (4)Cl2—Sb2—Cl6—Sb1−112.00 (2)
C8—N2—C14—C13178.9 (3)Cl5—Sb2—Cl6—Sb152.283 (18)
D—H···AD—HH···AD···AD—H···A
N1—H1N···Cl6i0.862.373.200 (3)162
N2—H2N···Cl6ii0.862.353.145 (3)153
C1—H1···O10.932.273.152 (4)159
C8—H8···Cl5iii0.932.723.327 (3)124
C10—H10···Cl3iv0.932.783.612 (3)150
C13—H13···Cl2ii0.932.763.524 (3)140
  4 in total

1.  High-pressure- and low-temperature-induced changes in [(CH3)2NH(CH2)2NH3][SbCl5].

Authors:  Maciej Bujak; Ross J Angel
Journal:  J Phys Chem B       Date:  2006-06-01       Impact factor: 2.991

2.  A short history of SHELX.

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

3.  Sodium stibogluconate (Pentostam) potentiates oxidant production in murine visceral leishmaniasis and in human blood.

Authors:  S Rais; A Perianin; M Lenoir; A Sadak; D Rivollet; M Paul; M Deniau
Journal:  Antimicrob Agents Chemother       Date:  2000-09       Impact factor: 5.191

4.  catena-Poly[[trans-bis-(1,3-benzo-thia-zole-κN)manganese(II)]-di-μ-chlorido].

Authors:  Hasna Bouchareb; Sabrina Benmebarek; Sofiane Bouacida; Hocine Merazig; Mhamed Boudraa
Journal:  Acta Crystallogr Sect E Struct Rep Online       Date:  2014-06-21
  4 in total

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