Buy article online - an online subscription or single-article purchase is required to access this article.
Download citation
Download citation
link to html
The brown cobalt(III) complex of the designed ligand bis(methyl 2-pyridylmethyl­idenehydrazinecarbodithio­ate) (HNNS), [Co(NNS)2]ClO4 or [Co(C8H8N3S2)2]ClO4, has been synthesized and characterized using single-crystal X-ray diffraction, elemental analysis and mass spectroscopic techniques. X-ray crystallography of the title compound has shown unambiguously that the crystallographic asymmetric unit consists of a [Co(NNS)2]+ cation and one ClO4 anion. The two NNS ligands coordinate orthogonally to the central CoIII ion with a mer configuration.

Supporting information

cif

Crystallographic Information File (CIF) https://doi.org/10.1107/S160053680603652X/bv2033sup1.cif
Contains datablocks I, global

hkl

Structure factor file (CIF format) https://doi.org/10.1107/S160053680603652X/bv2033Isup2.hkl
Contains datablock I

CCDC reference: 624013

Key indicators

  • Single-crystal X-ray study
  • T = 298 K
  • Mean [sigma](C-C) = 0.006 Å
  • Disorder in solvent or counterion
  • R factor = 0.048
  • wR factor = 0.126
  • Data-to-parameter ratio = 17.3

checkCIF/PLATON results

No syntax errors found



Alert level B PLAT432_ALERT_2_B Short Inter X...Y Contact O2 .. C14 .. 2.86 Ang.
Alert level C PLAT243_ALERT_4_C High 'Solvent' Ueq as Compared to Neighbors for O1 PLAT243_ALERT_4_C High 'Solvent' Ueq as Compared to Neighbors for O2 PLAT243_ALERT_4_C High 'Solvent' Ueq as Compared to Neighbors for O3B PLAT244_ALERT_4_C Low 'Solvent' Ueq as Compared to Neighbors for O2B PLAT244_ALERT_4_C Low 'Solvent' Ueq as Compared to Neighbors for O3 PLAT302_ALERT_4_C Anion/Solvent Disorder ......................... 38.00 Perc. PLAT710_ALERT_4_C Delete 1-2-3 or 2-3-4 Linear Torsion Angle ... # 21 N5 -CO1 -N2 -C6 -12.00 3.00 1.555 1.555 1.555 1.555 PLAT710_ALERT_4_C Delete 1-2-3 or 2-3-4 Linear Torsion Angle ... # 26 N5 -CO1 -N2 -N3 169.00 2.00 1.555 1.555 1.555 1.555 PLAT710_ALERT_4_C Delete 1-2-3 or 2-3-4 Linear Torsion Angle ... # 43 N2 -CO1 -N5 -C14 104.00 2.00 1.555 1.555 1.555 1.555 PLAT710_ALERT_4_C Delete 1-2-3 or 2-3-4 Linear Torsion Angle ... # 48 N2 -CO1 -N5 -N6 -70.00 2.00 1.555 1.555 1.555 1.555 PLAT779_ALERT_2_C Suspect or Irrelevant (Bond) Angle in CIF ...... 26.40 Deg. O3 -CL1 -O3B 1.555 1.555 1.555 PLAT779_ALERT_2_C Suspect or Irrelevant (Bond) Angle in CIF ...... 25.40 Deg. O2 -CL1 -O2B 1.555 1.555 1.555 PLAT779_ALERT_2_C Suspect or Irrelevant (Bond) Angle in CIF ...... 40.20 Deg. O1 -CL1 -O1A 1.555 1.555 1.555
0 ALERT level A = In general: serious problem 1 ALERT level B = Potentially serious problem 13 ALERT level C = Check and explain 0 ALERT level G = General alerts; check 0 ALERT type 1 CIF construction/syntax error, inconsistent or missing data 4 ALERT type 2 Indicator that the structure model may be wrong or deficient 0 ALERT type 3 Indicator that the structure quality may be low 10 ALERT type 4 Improvement, methodology, query or suggestion 0 ALERT type 5 Informative message, check

Computing details top

Data collection: SMART (Bruker, 1998); cell refinement: SMART; data reduction: SAINT (Bruker, 1998); program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: SHELXTL (Bruker, 1998); software used to prepare material for publication: SHELXTL.

Bis(methyl 2-pyridylmethylidenehydrazinecarbodithioato)cobalt(III) perchlorate top
Crystal data top
[Co(C8H8N3S2)2]ClO4F(000) = 1176
Mr = 578.97Dx = 1.683 Mg m3
Monoclinic, P21/cMo Kα radiation, λ = 0.71073 Å
Hall symbol: -P 2ybcCell parameters from 2785 reflections
a = 10.783 (2) Åθ = 2.1–25.2°
b = 12.049 (2) ŵ = 1.27 mm1
c = 17.613 (3) ÅT = 298 K
β = 93.249 (4)°Block, brown
V = 2284.8 (7) Å30.26 × 0.22 × 0.20 mm
Z = 4
Data collection top
Bruker SMART 1K CCD area-detector
diffractometer
4990 independent reflections
Radiation source: fine-focus sealed tube3204 reflections with I > 2σ(I)
Graphite monochromatorRint = 0.034
ω scansθmax = 27.1°, θmin = 1.9°
Absorption correction: multi-scan
(SADABS; Sheldrick, 1996)
h = 1313
Tmin = 0.734, Tmax = 0.785k = 1512
12549 measured reflectionsl = 2122
Refinement top
Refinement on F2Secondary atom site location: difference Fourier map
Least-squares matrix: fullHydrogen site location: inferred from neighbouring sites
R[F2 > 2σ(F2)] = 0.048H-atom parameters constrained
wR(F2) = 0.126 w = 1/[σ2(Fo2) + (0.0535P)2 + 2.4373P]
where P = (Fo2 + 2Fc2)/3
S = 1.04(Δ/σ)max = 0.005
4990 reflectionsΔρmax = 0.67 e Å3
289 parametersΔρmin = 0.45 e Å3
0 restraintsExtinction correction: SHELXL97 (Sheldrick, 1997), Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4
Primary atom site location: structure-invariant direct methodsExtinction coefficient: 0.0000
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*/UeqOcc. (<1)
Co10.63336 (4)0.87074 (4)0.82283 (3)0.02961 (16)
Cl10.89033 (10)0.09344 (11)0.62746 (8)0.0627 (4)
S10.57554 (9)0.98159 (8)0.72502 (6)0.0372 (2)
S20.33398 (11)0.97852 (10)0.63991 (7)0.0517 (3)
S30.59795 (9)1.00454 (9)0.90631 (6)0.0426 (3)
S40.77824 (12)1.14464 (12)0.98720 (8)0.0654 (4)
O10.8689 (8)0.1986 (8)0.6643 (5)0.097 (3)*0.50
O20.8916 (9)0.0062 (9)0.6717 (6)0.095 (3)*0.50
O31.0086 (6)0.1363 (6)0.6221 (4)0.0540 (18)*0.50
O40.7994 (3)0.1001 (3)0.5671 (2)0.0826 (12)
O1A0.8401 (7)0.1386 (7)0.7003 (4)0.076 (2)*0.50
O2B0.8973 (6)0.0300 (6)0.6444 (4)0.0516 (18)*0.50
O3B1.0084 (8)0.1076 (7)0.5903 (5)0.081 (3)*0.50
N10.6451 (3)0.7643 (3)0.90760 (17)0.0329 (7)
N20.4670 (3)0.8221 (3)0.81689 (17)0.0329 (7)
N30.3796 (3)0.8550 (3)0.76059 (18)0.0381 (8)
N40.7008 (3)0.7627 (2)0.75141 (17)0.0320 (7)
N50.8010 (3)0.9159 (3)0.83447 (17)0.0331 (7)
N60.8433 (3)0.9988 (3)0.88372 (19)0.0404 (8)
C10.7435 (4)0.7357 (3)0.9521 (2)0.0418 (10)
H10.82120.76310.94140.050*
C20.7334 (4)0.6660 (4)1.0142 (2)0.0521 (12)
H20.80380.64551.04390.062*
C30.6186 (5)0.6278 (4)1.0313 (2)0.0541 (12)
H30.60980.58351.07390.065*
C40.5166 (4)0.6555 (4)0.9848 (2)0.0499 (11)
H40.43830.62890.99500.060*
C50.5314 (4)0.7224 (3)0.9233 (2)0.0390 (9)
C60.4339 (3)0.7544 (3)0.8679 (2)0.0400 (10)
H60.35310.72780.86930.048*
C70.4273 (4)0.9276 (3)0.7157 (2)0.0357 (9)
C80.1916 (4)0.9025 (5)0.6483 (3)0.0722 (16)
H8A0.20810.82440.64540.108*
H8B0.13310.92340.60770.108*
H8C0.15780.91930.69620.108*
C90.6424 (4)0.6878 (3)0.7084 (2)0.0392 (9)
H90.55620.68360.70810.047*
C100.7058 (4)0.6147 (4)0.6632 (2)0.0475 (11)
H100.66250.56320.63260.057*
C110.8325 (4)0.6195 (4)0.6643 (2)0.0490 (11)
H110.87630.56970.63570.059*
C120.8949 (4)0.6987 (4)0.7082 (2)0.0454 (10)
H120.98110.70380.70920.055*
C130.8266 (3)0.7706 (3)0.7508 (2)0.0363 (9)
C140.8791 (3)0.8583 (3)0.7983 (2)0.0378 (9)
H140.96400.87240.80250.045*
C150.7519 (4)1.0417 (3)0.9194 (2)0.0413 (10)
C160.9402 (4)1.1695 (4)0.9833 (3)0.0682 (15)
H16A0.98531.10340.99770.102*
H16B0.96441.22851.01760.102*
H16C0.95851.19010.93250.102*
Atomic displacement parameters (Å2) top
U11U22U33U12U13U23
Co10.0273 (3)0.0294 (3)0.0322 (3)0.0023 (2)0.0024 (2)0.0013 (2)
Cl10.0404 (6)0.0631 (8)0.0838 (9)0.0042 (5)0.0038 (6)0.0071 (7)
S10.0386 (5)0.0328 (5)0.0403 (6)0.0029 (4)0.0026 (4)0.0054 (4)
S20.0508 (7)0.0536 (7)0.0491 (7)0.0072 (5)0.0096 (5)0.0093 (6)
S30.0375 (6)0.0447 (6)0.0460 (6)0.0011 (5)0.0052 (5)0.0099 (5)
S40.0532 (7)0.0712 (9)0.0722 (9)0.0091 (6)0.0076 (6)0.0382 (7)
O40.070 (2)0.086 (3)0.089 (3)0.007 (2)0.021 (2)0.007 (2)
N10.0348 (17)0.0311 (17)0.0330 (17)0.0007 (14)0.0023 (14)0.0027 (14)
N20.0297 (16)0.0335 (18)0.0360 (18)0.0024 (13)0.0045 (14)0.0002 (14)
N30.0303 (17)0.0392 (19)0.044 (2)0.0006 (14)0.0014 (14)0.0008 (16)
N40.0284 (16)0.0300 (17)0.0376 (18)0.0016 (13)0.0033 (13)0.0041 (14)
N50.0319 (16)0.0331 (17)0.0342 (18)0.0044 (14)0.0010 (14)0.0010 (14)
N60.0381 (19)0.039 (2)0.043 (2)0.0083 (15)0.0034 (15)0.0072 (16)
C10.042 (2)0.046 (2)0.038 (2)0.0036 (19)0.0027 (18)0.0021 (19)
C20.064 (3)0.050 (3)0.040 (3)0.000 (2)0.012 (2)0.004 (2)
C30.076 (3)0.050 (3)0.038 (2)0.000 (2)0.011 (2)0.011 (2)
C40.052 (3)0.052 (3)0.047 (3)0.006 (2)0.015 (2)0.010 (2)
C50.043 (2)0.034 (2)0.040 (2)0.0012 (18)0.0116 (18)0.0029 (18)
C60.0286 (19)0.042 (2)0.051 (3)0.0056 (17)0.0095 (18)0.001 (2)
C70.039 (2)0.030 (2)0.038 (2)0.0085 (17)0.0031 (17)0.0027 (17)
C80.048 (3)0.080 (4)0.085 (4)0.004 (3)0.022 (3)0.002 (3)
C90.038 (2)0.036 (2)0.044 (2)0.0084 (18)0.0046 (18)0.0009 (19)
C100.058 (3)0.040 (2)0.046 (3)0.013 (2)0.007 (2)0.007 (2)
C110.057 (3)0.042 (3)0.049 (3)0.004 (2)0.015 (2)0.008 (2)
C120.043 (2)0.047 (3)0.047 (3)0.005 (2)0.0098 (19)0.004 (2)
C130.037 (2)0.038 (2)0.035 (2)0.0004 (17)0.0043 (17)0.0044 (17)
C140.0288 (19)0.045 (2)0.040 (2)0.0028 (17)0.0030 (17)0.0005 (19)
C150.043 (2)0.040 (2)0.040 (2)0.0018 (19)0.0002 (19)0.0047 (19)
C160.052 (3)0.073 (4)0.079 (4)0.001 (3)0.002 (3)0.031 (3)
Geometric parameters (Å, º) top
Co1—N21.884 (3)N6—C151.305 (5)
Co1—N51.888 (3)C1—C21.387 (6)
Co1—N11.967 (3)C1—H10.9300
Co1—N41.977 (3)C2—C31.370 (6)
Co1—S32.2294 (12)C2—H20.9300
Co1—S12.2403 (11)C3—C41.374 (6)
Cl1—O21.308 (10)C3—H30.9300
Cl1—O31.384 (7)C4—C51.367 (5)
Cl1—O41.407 (4)C4—H40.9300
Cl1—O11.448 (9)C5—C61.445 (6)
Cl1—O3B1.474 (9)C6—H60.9300
Cl1—O2B1.518 (7)C8—H8A0.9600
Cl1—O1A1.521 (8)C8—H8B0.9600
S1—C71.725 (4)C8—H8C0.9600
S2—C71.738 (4)C9—C101.392 (6)
S2—C81.801 (5)C9—H90.9300
S3—C151.722 (4)C10—C111.366 (6)
S4—C151.734 (4)C10—H100.9300
S4—C161.778 (5)C11—C121.380 (6)
N1—C11.328 (5)C11—H110.9300
N1—C51.368 (5)C12—C131.385 (5)
N2—C61.280 (5)C12—H120.9300
N2—N31.387 (4)C13—C141.444 (5)
N3—C71.305 (5)C14—H140.9300
N4—C91.317 (5)C16—H16A0.9600
N4—C131.361 (4)C16—H16B0.9600
N5—C141.287 (5)C16—H16C0.9600
N5—N61.383 (4)
N2—Co1—N5176.69 (13)N1—C1—C2121.8 (4)
N2—Co1—N181.93 (13)N1—C1—H1119.1
N5—Co1—N194.90 (13)C2—C1—H1119.1
N2—Co1—N498.25 (13)C3—C2—C1119.2 (4)
N5—Co1—N482.76 (13)C3—C2—H2120.4
N1—Co1—N492.49 (12)C1—C2—H2120.4
N2—Co1—S393.64 (10)C2—C3—C4119.3 (4)
N5—Co1—S385.34 (10)C2—C3—H3120.3
N1—Co1—S388.69 (10)C4—C3—H3120.3
N4—Co1—S3168.11 (9)C5—C4—C3119.3 (4)
N2—Co1—S185.42 (10)C5—C4—H4120.3
N5—Co1—S197.75 (10)C3—C4—H4120.3
N1—Co1—S1167.33 (9)C4—C5—N1121.6 (4)
N4—Co1—S189.97 (9)C4—C5—C6125.4 (4)
S3—Co1—S191.46 (5)N1—C5—C6113.0 (3)
O2—Cl1—O3111.2 (5)N2—C6—C5115.0 (3)
O2—Cl1—O4118.6 (5)N2—C6—H6122.5
O3—Cl1—O4122.2 (4)C5—C6—H6122.5
O2—Cl1—O1115.6 (6)N3—C7—S1126.2 (3)
O3—Cl1—O182.8 (5)N3—C7—S2118.1 (3)
O4—Cl1—O199.6 (4)S1—C7—S2115.7 (2)
O2—Cl1—O3B112.2 (6)S2—C8—H8A109.5
O3—Cl1—O3B26.4 (4)S2—C8—H8B109.5
O4—Cl1—O3B103.9 (4)H8A—C8—H8B109.5
O1—Cl1—O3B105.2 (5)S2—C8—H8C109.5
O2—Cl1—O2B25.4 (5)H8A—C8—H8C109.5
O3—Cl1—O2B110.1 (4)H8B—C8—H8C109.5
O4—Cl1—O2B103.2 (3)N4—C9—C10121.9 (4)
O1—Cl1—O2B141.0 (5)N4—C9—H9119.1
O3B—Cl1—O2B99.6 (4)C10—C9—H9119.1
O2—Cl1—O1A77.1 (5)C11—C10—C9119.3 (4)
O3—Cl1—O1A107.3 (4)C11—C10—H10120.4
O4—Cl1—O1A110.5 (3)C9—C10—H10120.4
O1—Cl1—O1A40.2 (4)C10—C11—C12119.5 (4)
O3B—Cl1—O1A133.7 (5)C10—C11—H11120.2
O2B—Cl1—O1A101.6 (4)C12—C11—H11120.2
C7—S1—Co193.68 (14)C11—C12—C13118.6 (4)
C7—S2—C8102.5 (2)C11—C12—H12120.7
C15—S3—Co194.38 (14)C13—C12—H12120.7
C15—S4—C16102.5 (2)N4—C13—C12121.5 (4)
C1—N1—C5118.7 (3)N4—C13—C14113.9 (3)
C1—N1—Co1129.2 (3)C12—C13—C14124.7 (4)
C5—N1—Co1111.9 (2)N5—C14—C13115.8 (3)
C6—N2—N3118.6 (3)N5—C14—H14122.1
C6—N2—Co1117.5 (3)C13—C14—H14122.1
N3—N2—Co1123.9 (2)N6—C15—S3125.5 (3)
C7—N3—N2110.4 (3)N6—C15—S4121.1 (3)
C9—N4—C13119.2 (3)S3—C15—S4113.4 (2)
C9—N4—Co1129.5 (3)S4—C16—H16A109.5
C13—N4—Co1111.2 (2)S4—C16—H16B109.5
C14—N5—N6119.8 (3)H16A—C16—H16B109.5
C14—N5—Co1116.1 (3)S4—C16—H16C109.5
N6—N5—Co1123.8 (2)H16A—C16—H16C109.5
C15—N6—N5110.9 (3)H16B—C16—H16C109.5
N2—Co1—S1—C74.60 (16)N1—Co1—N5—N686.0 (3)
N5—Co1—S1—C7176.37 (16)N4—Co1—N5—N6177.9 (3)
N1—Co1—S1—C77.6 (5)S3—Co1—N5—N62.2 (3)
N4—Co1—S1—C793.68 (15)S1—Co1—N5—N693.1 (3)
S3—Co1—S1—C798.13 (13)C14—N5—N6—C15175.0 (4)
N2—Co1—S3—C15174.70 (17)Co1—N5—N6—C151.0 (4)
N5—Co1—S3—C152.15 (17)C5—N1—C1—C20.8 (6)
N1—Co1—S3—C1592.87 (17)Co1—N1—C1—C2174.1 (3)
N4—Co1—S3—C153.0 (5)N1—C1—C2—C31.7 (6)
S1—Co1—S3—C1599.81 (15)C1—C2—C3—C42.7 (7)
N2—Co1—N1—C1178.1 (4)C2—C3—C4—C51.3 (7)
N5—Co1—N1—C12.8 (4)C3—C4—C5—N11.2 (6)
N4—Co1—N1—C180.1 (3)C3—C4—C5—C6177.3 (4)
S3—Co1—N1—C188.0 (3)C1—N1—C5—C42.3 (6)
S1—Co1—N1—C1178.9 (3)Co1—N1—C5—C4173.4 (3)
N2—Co1—N1—C56.7 (3)C1—N1—C5—C6176.4 (3)
N5—Co1—N1—C5172.3 (3)Co1—N1—C5—C67.9 (4)
N4—Co1—N1—C5104.7 (3)N3—N2—C6—C5178.5 (3)
S3—Co1—N1—C587.1 (2)Co1—N2—C6—C51.2 (5)
S1—Co1—N1—C53.7 (6)C4—C5—C6—N2176.7 (4)
N5—Co1—N2—C612 (3)N1—C5—C6—N24.7 (5)
N1—Co1—N2—C64.4 (3)N2—N3—C7—S12.3 (5)
N4—Co1—N2—C695.8 (3)N2—N3—C7—S2179.0 (2)
S3—Co1—N2—C683.8 (3)Co1—S1—C7—N35.3 (4)
S1—Co1—N2—C6174.9 (3)Co1—S1—C7—S2176.03 (19)
N5—Co1—N2—N3169 (2)C8—S2—C7—N32.1 (4)
N1—Co1—N2—N3175.3 (3)C8—S2—C7—S1179.1 (3)
N4—Co1—N2—N383.9 (3)C13—N4—C9—C101.3 (6)
S3—Co1—N2—N396.6 (3)Co1—N4—C9—C10177.3 (3)
S1—Co1—N2—N35.4 (3)N4—C9—C10—C111.0 (6)
C6—N2—N3—C7177.0 (3)C9—C10—C11—C122.0 (7)
Co1—N2—N3—C73.3 (4)C10—C11—C12—C130.8 (7)
N2—Co1—N4—C95.6 (4)C9—N4—C13—C122.5 (6)
N5—Co1—N4—C9177.6 (3)Co1—N4—C13—C12176.3 (3)
N1—Co1—N4—C987.8 (3)C9—N4—C13—C14177.9 (3)
S3—Co1—N4—C9176.7 (3)Co1—N4—C13—C143.2 (4)
S1—Co1—N4—C979.8 (3)C11—C12—C13—N41.5 (6)
N2—Co1—N4—C13173.1 (2)C11—C12—C13—C14179.0 (4)
N5—Co1—N4—C133.8 (2)N6—N5—C14—C13177.4 (3)
N1—Co1—N4—C1390.9 (3)Co1—N5—C14—C133.0 (4)
S3—Co1—N4—C134.6 (6)N4—C13—C14—N50.4 (5)
S1—Co1—N4—C13101.6 (2)C12—C13—C14—N5179.1 (4)
N2—Co1—N5—C14104 (2)N5—N6—C15—S31.6 (5)
N1—Co1—N5—C1488.1 (3)N5—N6—C15—S4177.9 (3)
N4—Co1—N5—C143.8 (3)Co1—S3—C15—N62.8 (4)
S3—Co1—N5—C14176.4 (3)Co1—S3—C15—S4176.7 (2)
S1—Co1—N5—C1492.7 (3)C16—S4—C15—N63.7 (4)
N2—Co1—N5—N670 (2)C16—S4—C15—S3176.7 (3)
 

Subscribe to Acta Crystallographica Section E: Crystallographic Communications

The full text of this article is available to subscribers to the journal.

If you have already registered and are using a computer listed in your registration details, please email support@iucr.org for assistance.

Buy online

You may purchase this article in PDF and/or HTML formats. For purchasers in the European Community who do not have a VAT number, VAT will be added at the local rate. Payments to the IUCr are handled by WorldPay, who will accept payment by credit card in several currencies. To purchase the article, please complete the form below (fields marked * are required), and then click on `Continue'.
E-mail address* 
Repeat e-mail address* 
(for error checking) 

Format*   PDF (US $40)
   HTML (US $40)
   PDF+HTML (US $50)
In order for VAT to be shown for your country javascript needs to be enabled.

VAT number 
(non-UK EC countries only) 
Country* 
 

Terms and conditions of use
Contact us

Follow Acta Cryst. E
Sign up for e-alerts
Follow Acta Cryst. on Twitter
Follow us on facebook
Sign up for RSS feeds