metal-organic compounds
{2,2′-[1,1′-(Ethane-1,2-diyldinitrilo)diethylidyne]diphenolato}bis(pyrrolidine)cobalt(III) perchlorate p-xylene hemisolvate
aDepartment of Chemistry, Faculty of Science, Semnan University, Semnan, Iran, and bDepartment of Chemistry, Adam Mickiewicz University, Grunwaldzka 6, 60-780 Poznań, Poland
*Correspondence e-mail: msalehi@sun.semnan.ac.ir
In the mononuclear title complex, [Co(C18H18N2O2)(C4H9N)2]ClO4·0.5C8H10, the CoIII ion has a slightly distorted octahedral coordination geometry. In the Me–salen ligand, the benzene rings are almost parallel, making a dihedral angle of 0.48 (13)°, but the torsion angle along the central C—C bond is 41.1 (2)°·The pyrrolidine rings are in slightly distorted chair conformations. The N atoms of the pyrrolidine axial ligands are involved in N—H⋯O hydrogen bonds with the perchlorate anions, and these hydrogen bonds connect the ionic species into infinite chains along the b axis. Some relatively short C—H⋯π interactions are also present in the and C—H⋯O interactions occur. The guest solvent p-xylene molecule lies on a special position at the inversion centre.
Related literature
For the properties of Co(III) complexes with Schiff base ligands, see: Polson et al. (1997); Yamada et al. (1999); Henson et al. (1999); Bianchini & Zoeliner (1997); Mishra et al. (2008); Kumar et al. (2009). For related structures, see: Dreos et al. (2003). For the preparation of N,N′-bis(methylsalicylidene)-1,2-ethylenediamine, see: Hariharan & Urbach (1969).
Experimental
Crystal data
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Refinement
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Data collection: CrysAlis PRO (Oxford Diffraction, 2009); cell CrysAlis PRO; data reduction: CrysAlis PRO; program(s) used to solve structure: SIR92 (Altomare et al., 1993); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: Stereochemical Workstation Operation Manual (Siemens, 1989); software used to prepare material for publication: SHELXL97.
Supporting information
https://doi.org/10.1107/S160053681004660X/jh2227sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S160053681004660X/jh2227Isup2.hkl
The desired ligand, H2Me-salen, was synthesized according to the literature procedures (Hariharan & Urbach, 1969). To a stirring solution of Co(CH3COO)2.4H2O (0.125 g, 0.5 mmol) in methanol (25 ml) was added an equimolar of H2Me-salen (0.148 g, 0.5 mmol). The red solution turned brown immediately upon the formation of [CoII(Me-salen)] complex. To this solution was added 4 mmol of pyrrolidine, and air was bubbled through the reaction mixture for about 3 h. 0.5 mmol (0.0615 g) of NaClO4 was then added to the resulting brown solution and stirred for 5 minutes. A red microcrystalline solid was produced by slow evaporation of methanol at room temperature. The product was then recrystallized from chloroform-xylene (2:1 v/v) and dark red crystals suitable for X-ray crystallography were obtained. The crystals were filtered off and washed with a small amount of cold methanol and dried under vacuum. Yield: 55%..
The positions of H atoms were freely refined, and their Uiso values were set at 1.2 (1.5 for methyl groups) times Ueq of appropriate carrier atom.
Cobalt Schiff base complexes with tetradentate Schiff base ligands have been extensively used to mimic cobalamin (B12) coenzymes (Polson et al., 1997), dioxygen carriers and oxygen activators (Yamada et al., 1999, Henson et al., 1999, Bianchini & Zoeliner, 1997). Co(III) Schiff base complexes with two
in axial positions have been used as antimicrobial agents as well (Mishra et al., 2008, Kumar et al., 2009). Here we present the structure of Co[Me-salen](bis-pyrrolidine) which crystallizes as the p-xylene solvate, (I, Scheme 1).Fig. 1 shows the perspective view of the cation. The Co atom is six-coordinated by two N atoms and two O atoms from Schiff base ligand, which are coplanar within 0.048 (1)Å and two N atoms from two pyrrolidine molecules, which are trans to each other (N—Co—N angle is 176.75 (8)°). These two axial ligands, both in half-chair conformations, are rotated by about 90° with respect to each other. The small distortion from the ideal octahedral coordination can be seen in the deviations of the trans angles from the ideal values of 180° as well as in the angle between the least-squares planes through six-membered chelate rings (Co—O—C—C—C—N—Co) of 1.82 (9)°. The Co—O and Co—N bond lengths agree well with those found in analogous cobalt complexes (e.g., Dreos et al., 2003).
In the π interactions (Table 2) also may play some role in determining the Especially one of these contacts (C14—H14···CgB (1/2 - x,-1/2 + y,1/2 - z) might be regarded as weak hydrogen bond.
the N atoms of the pyrrolidine ligands are involved in N—H···O hydrogen bonds with the perchlorate anions. These hydrogen bonds connect molecules into infinite chains along the b axis (Fig. 2). Some C—H···For the properties of Co(III) complexes with Schiff base ligands, see: Polson et al. (1997); Yamada et al. (1999); Henson et al. (1999); Bianchini & Zoeliner (1997); Mishra et al. (2008); Kumar et al. (2009). For related structures, see: Dreos et al. (2003). For the preparation of N,N'-bis(methylsalicylidene)-1,2-ethylenediamine, see: Hariharan & Urbach (1969).
Data collection: CrysAlis PRO (Oxford Diffraction, 2009); cell
CrysAlis PRO (Oxford Diffraction, 2009); data reduction: CrysAlis PRO (Oxford Diffraction, 2009); program(s) used to solve structure: SIR92 (Altomare et al., 1993); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: Stereochemical Workstation Operation Manual (Siemens, 1989); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008).Fig. 1. The perspective view of the cation (I), with atom labeling scheme. Displacement ellipsoids are drawn at 50% probability level, hydrogen atoms are depicted as spheres of arbitrary radii. Hydrogen bonds are shown as dashed lines, prime signs refer to the symmetry code 2 - x,-y,1 - z. | |
Fig. 2. The crystal packing of (I).The dashed lines denote hydrogen bonds. |
[Co(C18H18N2O2)(C4H9N)2]ClO4·0.5C8H10 | F(000) = 1364 |
Mr = 648.05 | Dx = 1.440 Mg m−3 |
Monoclinic, P21/n | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2yn | Cell parameters from 9456 reflections |
a = 13.118 (2) Å | θ = 2.9–29.0° |
b = 16.551 (3) Å | µ = 0.71 mm−1 |
c = 13.784 (2) Å | T = 100 K |
β = 92.87 (2)° | Prism, dark red |
V = 2989.0 (8) Å3 | 0.4 × 0.15 × 0.15 mm |
Z = 4 |
Oxford Diffraction Xcalibur Eos diffractometer | 7081 independent reflections |
Radiation source: Enhance (Mo) X-ray Source | 4734 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.053 |
Detector resolution: 16.1544 pixels mm-1 | θmax = 29.1°, θmin = 2.9° |
ω scans | h = −16→15 |
Absorption correction: multi-scan (CrysAlis PRO; Oxford Diffraction, 2009) | k = −21→22 |
Tmin = 0.422, Tmax = 1.000 | l = −18→18 |
23760 measured reflections |
Refinement on F2 | Primary atom site location: structure-invariant direct methods |
Least-squares matrix: full | Secondary atom site location: difference Fourier map |
R[F2 > 2σ(F2)] = 0.040 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.084 | H atoms treated by a mixture of independent and constrained refinement |
S = 0.99 | w = 1/[σ2(Fo2) + (0.038P)2] where P = (Fo2 + 2Fc2)/3 |
7081 reflections | (Δ/σ)max = 0.002 |
502 parameters | Δρmax = 0.67 e Å−3 |
0 restraints | Δρmin = −0.51 e Å−3 |
[Co(C18H18N2O2)(C4H9N)2]ClO4·0.5C8H10 | V = 2989.0 (8) Å3 |
Mr = 648.05 | Z = 4 |
Monoclinic, P21/n | Mo Kα radiation |
a = 13.118 (2) Å | µ = 0.71 mm−1 |
b = 16.551 (3) Å | T = 100 K |
c = 13.784 (2) Å | 0.4 × 0.15 × 0.15 mm |
β = 92.87 (2)° |
Oxford Diffraction Xcalibur Eos diffractometer | 7081 independent reflections |
Absorption correction: multi-scan (CrysAlis PRO; Oxford Diffraction, 2009) | 4734 reflections with I > 2σ(I) |
Tmin = 0.422, Tmax = 1.000 | Rint = 0.053 |
23760 measured reflections |
R[F2 > 2σ(F2)] = 0.040 | 0 restraints |
wR(F2) = 0.084 | H atoms treated by a mixture of independent and constrained refinement |
S = 0.99 | Δρmax = 0.67 e Å−3 |
7081 reflections | Δρmin = −0.51 e Å−3 |
502 parameters |
Geometry. All s.u.'s (except the s.u. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell s.u.'s are taken into account individually in the estimation of s.u.'s in distances, angles and torsion angles; correlations between s.u.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell s.u.'s is used for estimating s.u.'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 > 2σ(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. |
x | y | z | Uiso*/Ueq | ||
Co1 | 0.43307 (2) | 0.200878 (17) | 0.223086 (19) | 0.01430 (8) | |
N1 | 0.32241 (13) | 0.26626 (11) | 0.15288 (13) | 0.0195 (4) | |
H1 | 0.3269 (16) | 0.2648 (13) | 0.0877 (17) | 0.023* | |
C2 | 0.31534 (19) | 0.35365 (14) | 0.17595 (19) | 0.0280 (6) | |
H21 | 0.3731 (18) | 0.3871 (15) | 0.1487 (16) | 0.034* | |
H22 | 0.3120 (17) | 0.3579 (14) | 0.2515 (17) | 0.034* | |
C3 | 0.21166 (19) | 0.37890 (16) | 0.1324 (2) | 0.0317 (6) | |
H31 | 0.1857 (17) | 0.4294 (16) | 0.1617 (17) | 0.038* | |
H32 | 0.2132 (18) | 0.3776 (15) | 0.0624 (18) | 0.038* | |
C4 | 0.1450 (2) | 0.30912 (17) | 0.1558 (3) | 0.0427 (7) | |
H41 | 0.085 (2) | 0.3023 (16) | 0.107 (2) | 0.051* | |
H42 | 0.121 (2) | 0.3201 (17) | 0.218 (2) | 0.051* | |
C5 | 0.21586 (18) | 0.23502 (15) | 0.16164 (19) | 0.0262 (5) | |
H51 | 0.2149 (17) | 0.2099 (14) | 0.2271 (17) | 0.031* | |
H52 | 0.1983 (18) | 0.1966 (15) | 0.1083 (17) | 0.031* | |
N6 | 0.53743 (14) | 0.13130 (11) | 0.29580 (11) | 0.0160 (4) | |
H6 | 0.5884 (16) | 0.1644 (14) | 0.3137 (15) | 0.019* | |
C7 | 0.50197 (19) | 0.09102 (14) | 0.38566 (15) | 0.0207 (5) | |
H71 | 0.4302 (17) | 0.0819 (14) | 0.3787 (15) | 0.025* | |
H72 | 0.5138 (16) | 0.1294 (14) | 0.4397 (15) | 0.025* | |
C8 | 0.5615 (2) | 0.01142 (15) | 0.39679 (17) | 0.0260 (5) | |
H81 | 0.5990 (17) | 0.0093 (14) | 0.4590 (17) | 0.031* | |
H82 | 0.5160 (17) | −0.0334 (15) | 0.3918 (16) | 0.031* | |
C9 | 0.63361 (18) | 0.00956 (15) | 0.31396 (16) | 0.0211 (5) | |
H91 | 0.6997 (17) | 0.0345 (13) | 0.3372 (15) | 0.025* | |
H92 | 0.6430 (17) | −0.0387 (14) | 0.2914 (15) | 0.025* | |
C10 | 0.58171 (18) | 0.06470 (14) | 0.23889 (15) | 0.0189 (5) | |
H101 | 0.6284 (16) | 0.0877 (13) | 0.1909 (15) | 0.023* | |
H102 | 0.5226 (16) | 0.0385 (13) | 0.2052 (15) | 0.023* | |
C11 | 0.33034 (15) | 0.06975 (12) | 0.12952 (14) | 0.0145 (4) | |
O12 | 0.35375 (10) | 0.10722 (8) | 0.21165 (9) | 0.0160 (3) | |
C13 | 0.25165 (17) | 0.01153 (13) | 0.13147 (16) | 0.0188 (5) | |
H13 | 0.2275 (16) | 0.0008 (14) | 0.1890 (16) | 0.023* | |
C14 | 0.21879 (17) | −0.03030 (13) | 0.05014 (16) | 0.0199 (5) | |
H14 | 0.1637 (16) | −0.0666 (14) | 0.0540 (15) | 0.024* | |
C15 | 0.26181 (16) | −0.01498 (13) | −0.03840 (15) | 0.0183 (5) | |
H15 | 0.2360 (15) | −0.0463 (13) | −0.0936 (15) | 0.022* | |
C16 | 0.33976 (16) | 0.04004 (13) | −0.04243 (15) | 0.0163 (5) | |
H16 | 0.3683 (15) | 0.0523 (13) | −0.1003 (15) | 0.020* | |
C17 | 0.37838 (15) | 0.08255 (12) | 0.04054 (14) | 0.0139 (4) | |
C18 | 0.46758 (15) | 0.13478 (12) | 0.03271 (13) | 0.0139 (4) | |
C19 | 0.52757 (18) | 0.12788 (14) | −0.05752 (15) | 0.0181 (5) | |
H19A | 0.4929 (17) | 0.1555 (14) | −0.1079 (16) | 0.027* | |
H19B | 0.5293 (16) | 0.0748 (15) | −0.0782 (15) | 0.027* | |
H19C | 0.5991 (18) | 0.1489 (14) | −0.0482 (15) | 0.027* | |
N20 | 0.49586 (13) | 0.18431 (10) | 0.10260 (11) | 0.0152 (4) | |
C21 | 0.58643 (18) | 0.23621 (14) | 0.09577 (16) | 0.0222 (5) | |
H211 | 0.5974 (16) | 0.2496 (13) | 0.0285 (16) | 0.027* | |
H212 | 0.6468 (18) | 0.2055 (14) | 0.1226 (16) | 0.027* | |
C22 | 0.56754 (19) | 0.31395 (14) | 0.14930 (16) | 0.0225 (5) | |
H221 | 0.6309 (18) | 0.3398 (14) | 0.1644 (15) | 0.027* | |
H222 | 0.5206 (17) | 0.3489 (14) | 0.1087 (16) | 0.027* | |
N23 | 0.51726 (13) | 0.29409 (10) | 0.23916 (12) | 0.0166 (4) | |
C24 | 0.52723 (16) | 0.34161 (13) | 0.31422 (15) | 0.0188 (5) | |
C25 | 0.5844 (2) | 0.41992 (15) | 0.30703 (19) | 0.0263 (6) | |
H25A | 0.652 (2) | 0.4135 (16) | 0.3180 (17) | 0.040* | |
H25B | 0.5622 (18) | 0.4579 (16) | 0.3546 (18) | 0.040* | |
H25C | 0.5750 (18) | 0.4459 (16) | 0.2461 (18) | 0.040* | |
C26 | 0.48102 (16) | 0.32171 (13) | 0.40501 (15) | 0.0183 (5) | |
C27 | 0.40293 (16) | 0.26336 (13) | 0.41079 (14) | 0.0186 (5) | |
O28 | 0.36521 (10) | 0.22025 (8) | 0.33713 (10) | 0.0181 (3) | |
C29 | 0.35918 (18) | 0.25124 (14) | 0.50123 (16) | 0.0243 (5) | |
H29 | 0.3078 (18) | 0.2120 (14) | 0.5022 (16) | 0.029* | |
C30 | 0.3937 (2) | 0.29266 (16) | 0.58313 (17) | 0.0293 (6) | |
H30 | 0.3643 (18) | 0.2825 (15) | 0.6370 (17) | 0.035* | |
C31 | 0.47268 (19) | 0.34752 (16) | 0.57808 (17) | 0.0295 (6) | |
H31A | 0.4954 (18) | 0.3735 (15) | 0.6275 (17) | 0.035* | |
C32 | 0.51534 (19) | 0.36198 (14) | 0.49171 (17) | 0.0253 (5) | |
H32A | 0.5689 (18) | 0.3976 (14) | 0.4914 (16) | 0.030* | |
Cl1A | 0.79066 (4) | 0.23619 (3) | 0.35925 (4) | 0.02212 (13) | |
O1A | 0.80829 (13) | 0.30755 (10) | 0.30347 (11) | 0.0339 (4) | |
O2A | 0.78027 (12) | 0.16794 (9) | 0.29433 (10) | 0.0280 (4) | |
O3A | 0.69829 (12) | 0.24462 (11) | 0.41007 (12) | 0.0357 (4) | |
O4A | 0.87471 (11) | 0.22283 (9) | 0.42896 (11) | 0.0258 (4) | |
C1A | 1.0458 (2) | 0.05050 (15) | 0.43188 (17) | 0.0345 (6) | |
C11A | 1.0945 (3) | 0.1044 (2) | 0.3592 (2) | 0.0499 (8) | |
H11A | 1.171 (2) | 0.1142 (19) | 0.381 (2) | 0.075* | |
H11B | 1.062 (2) | 0.152 (2) | 0.349 (2) | 0.075* | |
H11C | 1.097 (2) | 0.080 (2) | 0.303 (2) | 0.075* | |
C2A | 0.9406 (2) | 0.03841 (16) | 0.42930 (18) | 0.0353 (7) | |
H2A | 0.9032 (19) | 0.0658 (16) | 0.3855 (18) | 0.042* | |
C3A | 0.8953 (2) | −0.01037 (16) | 0.49598 (18) | 0.0360 (6) | |
H3A | 0.821 (2) | −0.0225 (17) | 0.4959 (19) | 0.054* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Co1 | 0.01606 (16) | 0.01228 (14) | 0.01440 (14) | −0.00159 (13) | −0.00085 (10) | −0.00040 (12) |
N1 | 0.0193 (10) | 0.0172 (9) | 0.0218 (9) | −0.0016 (8) | −0.0013 (8) | −0.0006 (8) |
C2 | 0.0290 (15) | 0.0167 (12) | 0.0376 (14) | 0.0002 (11) | −0.0065 (11) | 0.0018 (11) |
C3 | 0.0296 (15) | 0.0254 (14) | 0.0390 (15) | 0.0056 (12) | −0.0088 (12) | −0.0012 (12) |
C4 | 0.0247 (16) | 0.0319 (16) | 0.071 (2) | 0.0057 (13) | 0.0034 (14) | 0.0010 (15) |
C5 | 0.0206 (13) | 0.0230 (13) | 0.0345 (14) | −0.0013 (11) | −0.0027 (10) | −0.0011 (11) |
N6 | 0.0192 (10) | 0.0148 (9) | 0.0139 (8) | −0.0019 (8) | 0.0011 (7) | 0.0001 (7) |
C7 | 0.0265 (13) | 0.0202 (12) | 0.0155 (11) | 0.0007 (10) | 0.0025 (9) | 0.0029 (9) |
C8 | 0.0314 (15) | 0.0224 (13) | 0.0244 (12) | 0.0030 (11) | 0.0029 (11) | 0.0035 (10) |
C9 | 0.0213 (13) | 0.0178 (12) | 0.0241 (12) | 0.0052 (10) | 0.0005 (9) | 0.0011 (10) |
C10 | 0.0207 (13) | 0.0190 (12) | 0.0172 (11) | 0.0033 (10) | 0.0020 (9) | −0.0022 (9) |
C11 | 0.0145 (11) | 0.0108 (10) | 0.0180 (10) | 0.0025 (9) | −0.0027 (8) | 0.0010 (8) |
O12 | 0.0188 (8) | 0.0143 (7) | 0.0146 (7) | −0.0036 (6) | −0.0005 (6) | −0.0003 (6) |
C13 | 0.0217 (13) | 0.0143 (11) | 0.0206 (11) | −0.0019 (10) | 0.0025 (9) | 0.0020 (9) |
C14 | 0.0150 (12) | 0.0133 (11) | 0.0308 (12) | −0.0016 (9) | −0.0036 (10) | 0.0000 (9) |
C15 | 0.0167 (12) | 0.0163 (11) | 0.0212 (11) | 0.0025 (9) | −0.0076 (9) | −0.0046 (9) |
C16 | 0.0183 (12) | 0.0155 (11) | 0.0149 (10) | 0.0052 (9) | −0.0009 (9) | −0.0002 (9) |
C17 | 0.0131 (11) | 0.0109 (10) | 0.0175 (10) | 0.0011 (9) | −0.0031 (8) | 0.0014 (8) |
C18 | 0.0146 (11) | 0.0135 (10) | 0.0132 (10) | 0.0034 (9) | −0.0028 (8) | 0.0042 (8) |
C19 | 0.0176 (13) | 0.0182 (12) | 0.0184 (11) | 0.0011 (10) | 0.0017 (9) | 0.0003 (9) |
N20 | 0.0155 (10) | 0.0141 (9) | 0.0158 (8) | −0.0024 (7) | −0.0008 (7) | 0.0034 (7) |
C21 | 0.0238 (13) | 0.0233 (12) | 0.0198 (11) | −0.0090 (11) | 0.0030 (9) | 0.0006 (10) |
C22 | 0.0234 (13) | 0.0208 (13) | 0.0230 (11) | −0.0091 (10) | −0.0021 (10) | 0.0023 (9) |
N23 | 0.0153 (10) | 0.0142 (9) | 0.0201 (9) | −0.0014 (8) | −0.0024 (7) | 0.0007 (8) |
C24 | 0.0134 (12) | 0.0159 (11) | 0.0262 (12) | 0.0032 (9) | −0.0089 (9) | 0.0000 (9) |
C25 | 0.0278 (15) | 0.0174 (12) | 0.0328 (14) | −0.0028 (11) | −0.0080 (11) | −0.0037 (11) |
C26 | 0.0168 (12) | 0.0163 (11) | 0.0211 (11) | 0.0068 (9) | −0.0069 (9) | −0.0041 (9) |
C27 | 0.0175 (12) | 0.0192 (11) | 0.0186 (10) | 0.0094 (10) | −0.0040 (9) | −0.0037 (9) |
O28 | 0.0168 (8) | 0.0197 (8) | 0.0182 (7) | −0.0001 (6) | 0.0032 (6) | −0.0042 (6) |
C29 | 0.0229 (13) | 0.0258 (14) | 0.0245 (12) | 0.0059 (11) | 0.0023 (10) | −0.0006 (10) |
C30 | 0.0327 (15) | 0.0355 (15) | 0.0197 (11) | 0.0161 (13) | 0.0018 (10) | −0.0028 (11) |
C31 | 0.0308 (15) | 0.0316 (15) | 0.0250 (13) | 0.0136 (12) | −0.0109 (11) | −0.0123 (11) |
C32 | 0.0253 (14) | 0.0215 (13) | 0.0279 (12) | 0.0085 (11) | −0.0110 (10) | −0.0060 (10) |
Cl1A | 0.0213 (3) | 0.0208 (3) | 0.0241 (3) | −0.0017 (2) | −0.0004 (2) | −0.0035 (2) |
O1A | 0.0455 (11) | 0.0222 (9) | 0.0339 (9) | −0.0021 (8) | −0.0005 (8) | 0.0039 (8) |
O2A | 0.0351 (10) | 0.0232 (9) | 0.0255 (8) | −0.0091 (8) | −0.0027 (7) | −0.0060 (7) |
O3A | 0.0208 (9) | 0.0498 (12) | 0.0366 (10) | 0.0078 (9) | 0.0044 (7) | −0.0034 (9) |
O4A | 0.0199 (9) | 0.0268 (9) | 0.0300 (9) | 0.0000 (7) | −0.0069 (7) | −0.0057 (7) |
C1A | 0.0544 (19) | 0.0251 (14) | 0.0238 (12) | 0.0132 (13) | −0.0004 (12) | −0.0075 (11) |
C11A | 0.072 (2) | 0.0429 (19) | 0.0357 (16) | 0.0097 (17) | 0.0069 (16) | −0.0021 (14) |
C2A | 0.050 (2) | 0.0306 (15) | 0.0241 (13) | 0.0174 (13) | −0.0091 (12) | −0.0067 (11) |
C3A | 0.0466 (17) | 0.0316 (15) | 0.0293 (14) | 0.0122 (14) | −0.0020 (12) | −0.0100 (12) |
Co1—O12 | 1.8692 (14) | C17—C18 | 1.463 (3) |
Co1—O28 | 1.8725 (14) | C18—N20 | 1.305 (2) |
Co1—N23 | 1.9038 (17) | C18—C19 | 1.509 (3) |
Co1—N20 | 1.9102 (17) | C19—H19A | 0.93 (2) |
Co1—N6 | 2.0168 (17) | C19—H19B | 0.92 (2) |
Co1—N1 | 2.0184 (18) | C19—H19C | 1.00 (2) |
N1—C2 | 1.485 (3) | N20—C21 | 1.473 (3) |
N1—C5 | 1.501 (3) | C21—C22 | 1.510 (3) |
N1—H1 | 0.90 (2) | C21—H211 | 0.97 (2) |
C2—C3 | 1.518 (3) | C21—H212 | 1.00 (2) |
C2—H21 | 1.02 (2) | C22—N23 | 1.469 (3) |
C2—H22 | 1.05 (2) | C22—H221 | 0.95 (2) |
C3—C4 | 1.494 (4) | C22—H222 | 1.00 (2) |
C3—H31 | 1.00 (3) | N23—C24 | 1.301 (3) |
C3—H32 | 0.97 (2) | C24—C26 | 1.455 (3) |
C4—C5 | 1.538 (4) | C24—C25 | 1.503 (3) |
C4—H41 | 1.01 (3) | C25—H25A | 0.89 (3) |
C4—H42 | 0.94 (3) | C25—H25B | 0.96 (3) |
C5—H51 | 0.99 (2) | C25—H25C | 0.95 (3) |
C5—H52 | 0.99 (2) | C26—C27 | 1.413 (3) |
N6—C10 | 1.488 (3) | C26—C32 | 1.422 (3) |
N6—C7 | 1.501 (3) | C27—O28 | 1.317 (2) |
N6—H6 | 0.89 (2) | C27—C29 | 1.413 (3) |
C7—C8 | 1.535 (3) | C29—C30 | 1.378 (3) |
C7—H71 | 0.95 (2) | C29—H29 | 0.94 (2) |
C7—H72 | 0.99 (2) | C30—C31 | 1.382 (4) |
C8—C9 | 1.519 (3) | C30—H30 | 0.87 (2) |
C8—H81 | 0.97 (2) | C31—C32 | 1.362 (3) |
C8—H82 | 0.95 (2) | C31—H31A | 0.85 (2) |
C9—C10 | 1.515 (3) | C32—H32A | 0.92 (2) |
C9—H91 | 1.00 (2) | Cl1A—O1A | 1.4343 (16) |
C9—H92 | 0.87 (2) | Cl1A—O3A | 1.4365 (16) |
C10—H101 | 1.00 (2) | Cl1A—O4A | 1.4428 (15) |
C10—H102 | 0.98 (2) | Cl1A—O2A | 1.4433 (15) |
C11—O12 | 1.314 (2) | C1A—C2A | 1.393 (4) |
C11—C13 | 1.413 (3) | C1A—C3Ai | 1.396 (3) |
C11—C17 | 1.423 (3) | C1A—C11A | 1.507 (4) |
C13—C14 | 1.369 (3) | C11A—H11A | 1.05 (3) |
C13—H13 | 0.89 (2) | C11A—H11B | 0.90 (3) |
C14—C15 | 1.393 (3) | C11A—H11C | 0.88 (3) |
C14—H14 | 0.94 (2) | C2A—C3A | 1.379 (4) |
C15—C16 | 1.372 (3) | C2A—H2A | 0.88 (2) |
C15—H15 | 0.97 (2) | C3A—C1Ai | 1.396 (3) |
C16—C17 | 1.415 (3) | C3A—H3A | 1.00 (3) |
C16—H16 | 0.92 (2) | ||
O12—Co1—O28 | 85.80 (6) | C16—C15—C14 | 119.4 (2) |
O12—Co1—N23 | 177.53 (7) | C16—C15—H15 | 123.8 (13) |
O28—Co1—N23 | 93.50 (7) | C14—C15—H15 | 116.7 (13) |
O12—Co1—N20 | 94.02 (7) | C15—C16—C17 | 122.3 (2) |
O28—Co1—N20 | 176.62 (7) | C15—C16—H16 | 121.2 (13) |
N23—Co1—N20 | 86.82 (7) | C17—C16—H16 | 116.5 (13) |
O12—Co1—N6 | 85.96 (7) | C16—C17—C11 | 117.82 (18) |
O28—Co1—N6 | 91.14 (6) | C16—C17—C18 | 119.31 (18) |
N23—Co1—N6 | 91.69 (7) | C11—C17—C18 | 122.82 (17) |
N20—Co1—N6 | 92.21 (7) | N20—C18—C17 | 121.05 (18) |
O12—Co1—N1 | 91.16 (7) | N20—C18—C19 | 121.02 (19) |
O28—Co1—N1 | 87.13 (7) | C17—C18—C19 | 117.91 (18) |
N23—Co1—N1 | 91.17 (7) | C18—C19—H19A | 108.8 (14) |
N20—Co1—N1 | 89.50 (7) | C18—C19—H19B | 110.4 (14) |
N6—Co1—N1 | 176.75 (8) | H19A—C19—H19B | 104.8 (18) |
C2—N1—C5 | 104.47 (18) | C18—C19—H19C | 113.0 (12) |
C2—N1—Co1 | 118.08 (14) | H19A—C19—H19C | 110.1 (19) |
C5—N1—Co1 | 115.28 (14) | H19B—C19—H19C | 109.4 (19) |
C2—N1—H1 | 104.3 (15) | C18—N20—C21 | 121.32 (17) |
C5—N1—H1 | 100.2 (14) | C18—N20—Co1 | 127.82 (14) |
Co1—N1—H1 | 112.4 (14) | C21—N20—Co1 | 110.86 (13) |
N1—C2—C3 | 104.35 (19) | N20—C21—C22 | 108.25 (19) |
N1—C2—H21 | 113.1 (13) | N20—C21—H211 | 110.6 (13) |
C3—C2—H21 | 111.7 (13) | C22—C21—H211 | 107.9 (13) |
N1—C2—H22 | 106.5 (13) | N20—C21—H212 | 107.9 (13) |
C3—C2—H22 | 107.1 (12) | C22—C21—H212 | 113.6 (13) |
H21—C2—H22 | 113.4 (18) | H211—C21—H212 | 108.5 (18) |
C4—C3—C2 | 102.9 (2) | N23—C22—C21 | 108.23 (18) |
C4—C3—H31 | 110.2 (14) | N23—C22—H221 | 110.0 (13) |
C2—C3—H31 | 112.9 (13) | C21—C22—H221 | 109.1 (14) |
C4—C3—H32 | 103.9 (15) | N23—C22—H222 | 108.2 (13) |
C2—C3—H32 | 109.1 (14) | C21—C22—H222 | 109.3 (13) |
H31—C3—H32 | 117 (2) | H221—C22—H222 | 111.9 (19) |
C3—C4—C5 | 105.6 (2) | C24—N23—C22 | 120.24 (18) |
C3—C4—H41 | 112.7 (16) | C24—N23—Co1 | 128.10 (15) |
C5—C4—H41 | 113.1 (16) | C22—N23—Co1 | 111.44 (13) |
C3—C4—H42 | 105.7 (18) | N23—C24—C26 | 121.16 (19) |
C5—C4—H42 | 109.4 (18) | N23—C24—C25 | 120.0 (2) |
H41—C4—H42 | 110 (2) | C26—C24—C25 | 118.8 (2) |
N1—C5—C4 | 106.5 (2) | C24—C25—H25A | 112.2 (17) |
N1—C5—H51 | 105.7 (13) | C24—C25—H25B | 110.4 (15) |
C4—C5—H51 | 110.2 (14) | H25A—C25—H25B | 107 (2) |
N1—C5—H52 | 110.1 (14) | C24—C25—H25C | 114.0 (15) |
C4—C5—H52 | 110.9 (14) | H25A—C25—H25C | 107 (2) |
H51—C5—H52 | 113.1 (19) | H25B—C25—H25C | 106 (2) |
C10—N6—C7 | 104.56 (16) | C27—C26—C32 | 118.2 (2) |
C10—N6—Co1 | 115.74 (12) | C27—C26—C24 | 122.51 (18) |
C7—N6—Co1 | 115.66 (14) | C32—C26—C24 | 119.3 (2) |
C10—N6—H6 | 107.1 (14) | O28—C27—C29 | 116.7 (2) |
C7—N6—H6 | 107.8 (14) | O28—C27—C26 | 124.91 (19) |
Co1—N6—H6 | 105.5 (14) | C29—C27—C26 | 118.33 (19) |
N6—C7—C8 | 106.65 (18) | C27—O28—Co1 | 124.32 (13) |
N6—C7—H71 | 109.4 (13) | C30—C29—C27 | 121.4 (2) |
C8—C7—H71 | 111.7 (14) | C30—C29—H29 | 122.7 (14) |
N6—C7—H72 | 107.1 (13) | C27—C29—H29 | 115.9 (14) |
C8—C7—H72 | 114.7 (12) | C29—C30—C31 | 120.1 (2) |
H71—C7—H72 | 107.2 (18) | C29—C30—H30 | 117.5 (17) |
C9—C8—C7 | 105.97 (19) | C31—C30—H30 | 122.4 (17) |
C9—C8—H81 | 110.9 (14) | C32—C31—C30 | 120.1 (2) |
C7—C8—H81 | 110.7 (14) | C32—C31—H31A | 118.0 (17) |
C9—C8—H82 | 110.0 (14) | C30—C31—H31A | 121.9 (17) |
C7—C8—H82 | 110.3 (14) | C31—C32—C26 | 121.7 (2) |
H81—C8—H82 | 108.9 (19) | C31—C32—H32A | 117.7 (14) |
C10—C9—C8 | 103.04 (18) | C26—C32—H32A | 120.5 (14) |
C10—C9—H91 | 108.8 (13) | O1A—Cl1A—O3A | 110.12 (11) |
C8—C9—H91 | 108.3 (12) | O1A—Cl1A—O4A | 110.17 (10) |
C10—C9—H92 | 112.1 (15) | O3A—Cl1A—O4A | 108.98 (9) |
C8—C9—H92 | 113.1 (15) | O1A—Cl1A—O2A | 108.95 (9) |
H91—C9—H92 | 111.1 (19) | O3A—Cl1A—O2A | 108.82 (10) |
N6—C10—C9 | 105.08 (16) | O4A—Cl1A—O2A | 109.78 (10) |
N6—C10—H101 | 109.6 (13) | C2A—C1A—C3Ai | 117.5 (2) |
C9—C10—H101 | 114.3 (12) | C2A—C1A—C11A | 121.3 (2) |
N6—C10—H102 | 104.8 (13) | C3Ai—C1A—C11A | 121.1 (3) |
C9—C10—H102 | 111.9 (13) | C1A—C11A—H11A | 109.4 (17) |
H101—C10—H102 | 110.5 (17) | C1A—C11A—H11B | 114 (2) |
O12—C11—C13 | 116.42 (18) | H11A—C11A—H11B | 111 (3) |
O12—C11—C17 | 125.31 (18) | C1A—C11A—H11C | 111 (2) |
C13—C11—C17 | 118.26 (18) | H11A—C11A—H11C | 104 (3) |
C11—O12—Co1 | 124.71 (12) | H11B—C11A—H11C | 107 (3) |
C14—C13—C11 | 122.0 (2) | C3A—C2A—C1A | 121.7 (2) |
C14—C13—H13 | 121.3 (14) | C3A—C2A—H2A | 120.9 (17) |
C11—C13—H13 | 116.6 (14) | C1A—C2A—H2A | 117.3 (17) |
C13—C14—C15 | 120.0 (2) | C2A—C3A—C1Ai | 120.8 (3) |
C13—C14—H14 | 119.1 (13) | C2A—C3A—H3A | 124.8 (16) |
C15—C14—H14 | 120.7 (13) | C1Ai—C3A—H3A | 114.3 (16) |
O12—Co1—N1—C2 | 151.59 (17) | C19—C18—N20—C21 | 0.9 (3) |
O28—Co1—N1—C2 | 65.85 (17) | C17—C18—N20—Co1 | −0.4 (3) |
N23—Co1—N1—C2 | −27.59 (17) | C19—C18—N20—Co1 | −178.70 (14) |
N20—Co1—N1—C2 | −114.40 (17) | O12—Co1—N20—C18 | 14.51 (17) |
O12—Co1—N1—C5 | 27.17 (16) | N23—Co1—N20—C18 | −167.82 (18) |
O28—Co1—N1—C5 | −58.57 (16) | N6—Co1—N20—C18 | 100.61 (17) |
N23—Co1—N1—C5 | −152.01 (16) | N1—Co1—N20—C18 | −76.62 (17) |
N20—Co1—N1—C5 | 121.18 (16) | O12—Co1—N20—C21 | −165.07 (14) |
C5—N1—C2—C3 | −36.4 (2) | N23—Co1—N20—C21 | 12.60 (15) |
Co1—N1—C2—C3 | −166.02 (16) | N6—Co1—N20—C21 | −78.97 (15) |
N1—C2—C3—C4 | 40.4 (3) | N1—Co1—N20—C21 | 103.80 (15) |
C2—C3—C4—C5 | −28.2 (3) | C18—N20—C21—C22 | 147.73 (19) |
C2—N1—C5—C4 | 18.5 (3) | Co1—N20—C21—C22 | −32.7 (2) |
Co1—N1—C5—C4 | 149.80 (18) | N20—C21—C22—N23 | 41.1 (2) |
C3—C4—C5—N1 | 6.4 (3) | C21—C22—N23—C24 | 153.4 (2) |
O12—Co1—N6—C10 | 63.71 (15) | C21—C22—N23—Co1 | −31.6 (2) |
O28—Co1—N6—C10 | 149.42 (15) | O28—Co1—N23—C24 | 9.06 (18) |
N23—Co1—N6—C10 | −117.05 (15) | N20—Co1—N23—C24 | −174.31 (18) |
N20—Co1—N6—C10 | −30.16 (16) | N6—Co1—N23—C24 | −82.19 (18) |
O12—Co1—N6—C7 | −59.05 (15) | N1—Co1—N23—C24 | 96.26 (18) |
O28—Co1—N6—C7 | 26.66 (15) | O28—Co1—N23—C22 | −165.47 (14) |
N23—Co1—N6—C7 | 120.19 (15) | N20—Co1—N23—C22 | 11.16 (15) |
N20—Co1—N6—C7 | −152.92 (15) | N6—Co1—N23—C22 | 103.28 (15) |
C10—N6—C7—C8 | 21.1 (2) | N1—Co1—N23—C22 | −78.27 (15) |
Co1—N6—C7—C8 | 149.59 (15) | C22—N23—C24—C26 | −177.86 (19) |
N6—C7—C8—C9 | 2.1 (3) | Co1—N23—C24—C26 | 8.0 (3) |
C7—C8—C9—C10 | −24.0 (3) | C22—N23—C24—C25 | 4.1 (3) |
C7—N6—C10—C9 | −36.7 (2) | Co1—N23—C24—C25 | −169.96 (16) |
Co1—N6—C10—C9 | −165.17 (14) | N23—C24—C26—C27 | −16.8 (3) |
C8—C9—C10—N6 | 37.7 (2) | C25—C24—C26—C27 | 161.2 (2) |
C13—C11—O12—Co1 | −166.03 (14) | N23—C24—C26—C32 | 163.0 (2) |
C17—C11—O12—Co1 | 14.8 (3) | C25—C24—C26—C32 | −19.0 (3) |
O28—Co1—O12—C11 | 155.40 (15) | C32—C26—C27—O28 | −178.51 (19) |
N20—Co1—O12—C11 | −21.22 (16) | C24—C26—C27—O28 | 1.3 (3) |
N6—Co1—O12—C11 | −113.16 (15) | C32—C26—C27—C29 | 3.4 (3) |
N1—Co1—O12—C11 | 68.36 (16) | C24—C26—C27—C29 | −176.76 (19) |
O12—C11—C13—C14 | 178.56 (19) | C29—C27—O28—Co1 | −160.24 (14) |
C17—C11—C13—C14 | −2.2 (3) | C26—C27—O28—Co1 | 21.7 (3) |
C11—C13—C14—C15 | −1.2 (3) | O12—Co1—O28—C27 | 154.22 (16) |
C13—C14—C15—C16 | 2.4 (3) | N23—Co1—O28—C27 | −23.40 (16) |
C14—C15—C16—C17 | −0.3 (3) | N6—Co1—O28—C27 | 68.36 (16) |
C15—C16—C17—C11 | −3.1 (3) | N1—Co1—O28—C27 | −114.40 (16) |
C15—C16—C17—C18 | 174.49 (19) | O28—C27—C29—C30 | 179.3 (2) |
O12—C11—C17—C16 | −176.63 (18) | C26—C27—C29—C30 | −2.4 (3) |
C13—C11—C17—C16 | 4.2 (3) | C27—C29—C30—C31 | 0.0 (4) |
O12—C11—C17—C18 | 5.9 (3) | C29—C30—C31—C32 | 1.3 (4) |
C13—C11—C17—C18 | −173.29 (18) | C30—C31—C32—C26 | −0.2 (4) |
C16—C17—C18—N20 | 169.29 (18) | C27—C26—C32—C31 | −2.2 (3) |
C11—C17—C18—N20 | −13.3 (3) | C24—C26—C32—C31 | 178.0 (2) |
C16—C17—C18—C19 | −12.4 (3) | C3Ai—C1A—C2A—C3A | 0.9 (4) |
C11—C17—C18—C19 | 165.03 (18) | C11A—C1A—C2A—C3A | −179.5 (2) |
C17—C18—N20—C21 | 179.12 (18) | C1A—C2A—C3A—C1Ai | −0.9 (4) |
Symmetry code: (i) −x+2, −y, −z+1. |
CgA, CgB and CgC are the centroids of the C11-C17, C26–C32 and C1A–C3A,C1A'–C3A' rings, respectively. |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1···O4Aii | 0.90 (2) | 2.32 (2) | 3.200 (2) | 166.2 (19) |
N6—H6···O2A | 0.89 (2) | 2.55 (2) | 3.244 (2) | 135.9 (18) |
N6—H6···O3A | 0.89 (2) | 2.33 (2) | 3.181 (3) | 160.9 (18) |
C2A—H2A···O2A | 0.88 (2) | 2.61 (3) | 3.477 (3) | 166 (2) |
C19—H19B···CgAiii | 0.92 (2) | 2.85 (2) | 3.438 (2) | 122.8 (16) |
C14—H14···CgBiv | 0.94 (2) | 2.56 (2) | 3.430 (2) | 153.8 (17) |
C22—H222···CgCv | 1.00 (2) | 2.92 (2) | 3.784 (2) | 145.5 (16) |
Symmetry codes: (ii) x−1/2, −y+1/2, z−1/2; (iii) −x+1, −y, −z; (iv) −x+1/2, y−1/2, −z+1/2; (v) −x+3/2, y+1/2, −z+1/2. |
Experimental details
Crystal data | |
Chemical formula | [Co(C18H18N2O2)(C4H9N)2]ClO4·0.5C8H10 |
Mr | 648.05 |
Crystal system, space group | Monoclinic, P21/n |
Temperature (K) | 100 |
a, b, c (Å) | 13.118 (2), 16.551 (3), 13.784 (2) |
β (°) | 92.87 (2) |
V (Å3) | 2989.0 (8) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.71 |
Crystal size (mm) | 0.4 × 0.15 × 0.15 |
Data collection | |
Diffractometer | Oxford Diffraction Xcalibur Eos |
Absorption correction | Multi-scan (CrysAlis PRO; Oxford Diffraction, 2009) |
Tmin, Tmax | 0.422, 1.000 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 23760, 7081, 4734 |
Rint | 0.053 |
(sin θ/λ)max (Å−1) | 0.684 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.040, 0.084, 0.99 |
No. of reflections | 7081 |
No. of parameters | 502 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.67, −0.51 |
Computer programs: CrysAlis PRO (Oxford Diffraction, 2009), SIR92 (Altomare et al., 1993), SHELXL97 (Sheldrick, 2008), Stereochemical Workstation Operation Manual (Siemens, 1989).
CgA, CgB and CgC are the centroids of the C11-C17, C26–C32 and C1A–C3A,C1A'–C3A' rings, respectively. |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1···O4Ai | 0.90 (2) | 2.32 (2) | 3.200 (2) | 166.2 (19) |
N6—H6···O2A | 0.89 (2) | 2.55 (2) | 3.244 (2) | 135.9 (18) |
N6—H6···O3A | 0.89 (2) | 2.33 (2) | 3.181 (3) | 160.9 (18) |
C2A—H2A···O2A | 0.88 (2) | 2.61 (3) | 3.477 (3) | 166 (2) |
C19—H19B···CgAii | 0.92 (2) | 2.85 (2) | 3.438 (2) | 122.8 (16) |
C14—H14···CgBiii | 0.94 (2) | 2.56 (2) | 3.430 (2) | 153.8 (17) |
C22—H222···CgCiv | 1.00 (2) | 2.92 (2) | 3.784 (2) | 145.5 (16) |
Symmetry codes: (i) x−1/2, −y+1/2, z−1/2; (ii) −x+1, −y, −z; (iii) −x+1/2, y−1/2, −z+1/2; (iv) −x+3/2, y+1/2, −z+1/2. |
Acknowledgements
MS thanks Semnan University for supporting this study.
References
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Cobalt Schiff base complexes with tetradentate Schiff base ligands have been extensively used to mimic cobalamin (B12) coenzymes (Polson et al., 1997), dioxygen carriers and oxygen activators (Yamada et al., 1999, Henson et al., 1999, Bianchini & Zoeliner, 1997). Co(III) Schiff base complexes with two amines in axial positions have been used as antimicrobial agents as well (Mishra et al., 2008, Kumar et al., 2009). Here we present the structure of Co[Me-salen](bis-pyrrolidine) which crystallizes as the p-xylene solvate, (I, Scheme 1).
Fig. 1 shows the perspective view of the cation. The Co atom is six-coordinated by two N atoms and two O atoms from Schiff base ligand, which are coplanar within 0.048 (1)Å and two N atoms from two pyrrolidine molecules, which are trans to each other (N—Co—N angle is 176.75 (8)°). These two axial ligands, both in half-chair conformations, are rotated by about 90° with respect to each other. The small distortion from the ideal octahedral coordination can be seen in the deviations of the trans angles from the ideal values of 180° as well as in the angle between the least-squares planes through six-membered chelate rings (Co—O—C—C—C—N—Co) of 1.82 (9)°. The Co—O and Co—N bond lengths agree well with those found in analogous cobalt complexes (e.g., Dreos et al., 2003).
In the crystal structure, the N atoms of the pyrrolidine ligands are involved in N—H···O hydrogen bonds with the perchlorate anions. These hydrogen bonds connect molecules into infinite chains along the b axis (Fig. 2). Some C—H···π interactions (Table 2) also may play some role in determining the crystal structure. Especially one of these contacts (C14—H14···CgB (1/2 - x,-1/2 + y,1/2 - z) might be regarded as weak hydrogen bond.