metal-organic compounds
{2,2′-[5-Bromopyridine-2,3-diylbis(nitrilomethylidyne)]diphenolato}chlorido(dimethylformamide)manganese(III)
aCollege of Chemistry & Chemical Engineering, Shanxi Datong University, Shanxi 037009, People's Republic of China
*Correspondence e-mail: haixiedt@126.com
In the title complex, [Mn(C19H12BrN3O2)Cl(C3H7NO)], the MnIII ion is coordinated by two N and two O atoms from the tetradentate Schiff base ligand, one O atom from the dimethylformamide ligand and a Cl anion in a distorted octahedral geometry. In the weak intermolecular C—H⋯Cl hydrogen bonds link the molecules into centrosymmetric dimers with a short distance of 3.878 (3) Å between the centroids of the aromatic rings.
Related literature
For related structures, see: Li et al. (2008); Eltayeb et al. (2008a,b); Fei & Fang (2008).
Experimental
Crystal data
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Refinement
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Data collection: APEX2 (Bruker, 2004); cell SAINT-Plus (Bruker, 2001); data reduction: SAINT-Plus; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008b); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008b); molecular graphics: SHELXTL (Sheldrick, 2008b); software used to prepare material for publication: SHELXTL.
Supporting information
10.1107/S1600536809049484/cv2658sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536809049484/cv2658Isup2.hkl
The Schiff base ligand was synthesized by condensation of 5-bromo-2,3-diaminopyridine and 2-hydroxy-benzaldehyde with the ratio 1:2 in ethanol. The synthesis of the title complex was carried out by reacting Mn(ClO4)2.6H2O, and the schiff-base ligand (1:1, molar ratio) in methanol. After the stirring process was continued for about one hour at room temperature, the mixture was filtered. The insoluble dark-brown solid was filtered out, dissolved in DMF and layered with ether. After one month, the block dark-brown crystals suitable for X-ray diffraction were obtained with a yield about 50%.
H atoms were placed in calcluated positions (C—H 0.93-0.96 Å), and were refined as riding atoms, with Uiso(H) = 1.2-1.5Ueq(C).
Data collection: APEX2 (Bruker, 2004); cell
SAINT-Plus (Bruker, 2001); data reduction: SAINT-Plus (Bruker, 2001); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008b); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008b); molecular graphics: SHELXTL (Sheldrick, 2008b); software used to prepare material for publication: SHELXTL (Sheldrick, 2008b).Fig. 1. The molecular structure of the title compound with the atom-labelling scheme. Displacement ellipsoids are drawn at the 30% probability level. All H-atoms are omitted for clarity. |
[Mn(C19H12BrN3O2)Cl(C3H7NO)] | F(000) = 1120 |
Mr = 557.71 | Dx = 1.653 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 2012 reflections |
a = 13.2834 (11) Å | θ = 2.1–26.7° |
b = 15.4971 (13) Å | µ = 2.52 mm−1 |
c = 12.2314 (11) Å | T = 293 K |
β = 117.143 (1)° | Block, dark-brown |
V = 2240.6 (3) Å3 | 0.31 × 0.21 × 0.19 mm |
Z = 4 |
Bruker APEXII CCD area-detector diffractometer | 3945 independent reflections |
Radiation source: fine-focus sealed tube | 3238 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.022 |
ϕ and ω scans | θmax = 25.0°, θmin = 2.2° |
Absorption correction: multi-scan (SADABS; Sheldrick, 2008a) | h = −15→15 |
Tmin = 0.508, Tmax = 0.646 | k = −13→18 |
10906 measured reflections | l = −14→13 |
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)] = 0.039 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.116 | H-atom parameters constrained |
S = 1.06 | w = 1/[σ2(Fo2) + (0.0643P)2 + 1.7733P] where P = (Fo2 + 2Fc2)/3 |
3945 reflections | (Δ/σ)max = 0.001 |
291 parameters | Δρmax = 1.30 e Å−3 |
0 restraints | Δρmin = −0.52 e Å−3 |
[Mn(C19H12BrN3O2)Cl(C3H7NO)] | V = 2240.6 (3) Å3 |
Mr = 557.71 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 13.2834 (11) Å | µ = 2.52 mm−1 |
b = 15.4971 (13) Å | T = 293 K |
c = 12.2314 (11) Å | 0.31 × 0.21 × 0.19 mm |
β = 117.143 (1)° |
Bruker APEXII CCD area-detector diffractometer | 3945 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 2008a) | 3238 reflections with I > 2σ(I) |
Tmin = 0.508, Tmax = 0.646 | Rint = 0.022 |
10906 measured reflections |
R[F2 > 2σ(F2)] = 0.039 | 0 restraints |
wR(F2) = 0.116 | H-atom parameters constrained |
S = 1.06 | Δρmax = 1.30 e Å−3 |
3945 reflections | Δρmin = −0.52 e Å−3 |
291 parameters |
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. |
x | y | z | Uiso*/Ueq | ||
Br1 | 0.45611 (4) | 0.63147 (3) | 0.36373 (4) | 0.06441 (17) | |
Mn1 | 0.81172 (4) | 0.45734 (3) | 0.12690 (5) | 0.03870 (16) | |
Cl1 | 0.68097 (8) | 0.34011 (7) | 0.05359 (10) | 0.0587 (3) | |
O1 | 0.9460 (2) | 0.38529 (17) | 0.1822 (2) | 0.0521 (6) | |
O2 | 0.7824 (2) | 0.49890 (18) | −0.0267 (2) | 0.0518 (6) | |
O3 | 0.9317 (2) | 0.56444 (18) | 0.2006 (3) | 0.0567 (7) | |
N1 | 0.8278 (2) | 0.45131 (18) | 0.3010 (3) | 0.0423 (7) | |
N2 | 0.6755 (2) | 0.54058 (18) | 0.1157 (3) | 0.0418 (7) | |
N3 | 0.7332 (3) | 0.4802 (2) | 0.4180 (3) | 0.0516 (8) | |
N4 | 1.0806 (3) | 0.6366 (2) | 0.1995 (3) | 0.0503 (8) | |
C1 | 0.7383 (3) | 0.4907 (2) | 0.3157 (3) | 0.0418 (8) | |
C2 | 0.6585 (3) | 0.5396 (2) | 0.2180 (3) | 0.0401 (8) | |
C3 | 0.5713 (3) | 0.5821 (2) | 0.2312 (3) | 0.0459 (8) | |
H3 | 0.5175 | 0.6151 | 0.1681 | 0.055* | |
C4 | 0.5694 (3) | 0.5727 (2) | 0.3378 (4) | 0.0482 (9) | |
C5 | 0.6486 (3) | 0.5208 (3) | 0.4285 (4) | 0.0530 (9) | |
H5 | 0.6428 | 0.5135 | 0.5009 | 0.064* | |
C6 | 1.0097 (3) | 0.3730 (2) | 0.3939 (4) | 0.0455 (9) | |
C7 | 1.0197 (3) | 0.3568 (2) | 0.2899 (4) | 0.0455 (9) | |
C8 | 1.1146 (3) | 0.3060 (3) | 0.3007 (4) | 0.0550 (10) | |
H8 | 1.1228 | 0.2951 | 0.2304 | 0.066* | |
C9 | 1.1925 (3) | 0.2733 (3) | 0.4095 (5) | 0.0618 (11) | |
H9 | 1.2519 | 0.2399 | 0.4125 | 0.074* | |
C10 | 1.1839 (3) | 0.2892 (3) | 0.5137 (4) | 0.0623 (11) | |
H10 | 1.2372 | 0.2675 | 0.5888 | 0.075* | |
C11 | 1.0937 (3) | 0.3385 (3) | 0.5056 (4) | 0.0559 (10) | |
H11 | 1.0881 | 0.3496 | 0.5774 | 0.067* | |
C12 | 0.9159 (3) | 0.4184 (2) | 0.3953 (3) | 0.0463 (8) | |
H12 | 0.9177 | 0.4252 | 0.4717 | 0.056* | |
C13 | 0.6144 (3) | 0.5898 (2) | −0.0885 (3) | 0.0432 (8) | |
C14 | 0.7045 (3) | 0.5503 (2) | −0.1064 (3) | 0.0450 (8) | |
C15 | 0.7093 (4) | 0.5706 (3) | −0.2114 (4) | 0.0555 (10) | |
H15 | 0.7676 | 0.5487 | −0.2254 | 0.067* | |
C16 | 0.6292 (4) | 0.6232 (3) | −0.2976 (4) | 0.0620 (11) | |
H16 | 0.6349 | 0.6356 | −0.3689 | 0.074* | |
C17 | 0.5388 (4) | 0.6590 (3) | −0.2831 (4) | 0.0605 (11) | |
H17 | 0.4853 | 0.6937 | −0.3438 | 0.073* | |
C18 | 0.5322 (3) | 0.6420 (3) | −0.1807 (4) | 0.0528 (9) | |
H18 | 0.4728 | 0.6645 | −0.1693 | 0.063* | |
C19 | 0.6052 (3) | 0.5823 (2) | 0.0182 (3) | 0.0418 (8) | |
H19 | 0.5438 | 0.6091 | 0.0213 | 0.050* | |
C20 | 0.9824 (3) | 0.5958 (3) | 0.1477 (4) | 0.0518 (9) | |
H20 | 0.9484 | 0.5902 | 0.0627 | 0.062* | |
C21 | 1.1408 (4) | 0.6469 (4) | 0.3284 (4) | 0.0799 (14) | |
H21A | 1.1098 | 0.6946 | 0.3532 | 0.120* | |
H21B | 1.2191 | 0.6579 | 0.3515 | 0.120* | |
H21C | 1.1344 | 0.5952 | 0.3680 | 0.120* | |
C22 | 1.1358 (4) | 0.6716 (3) | 0.1327 (4) | 0.0620 (11) | |
H22A | 1.0857 | 0.6687 | 0.0462 | 0.093* | |
H22B | 1.2030 | 0.6390 | 0.1508 | 0.093* | |
H22C | 1.1558 | 0.7307 | 0.1562 | 0.093* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Br1 | 0.0571 (3) | 0.0792 (3) | 0.0650 (3) | 0.0171 (2) | 0.0349 (2) | 0.0026 (2) |
Mn1 | 0.0317 (3) | 0.0426 (3) | 0.0388 (3) | 0.0076 (2) | 0.0134 (2) | 0.0029 (2) |
Cl1 | 0.0422 (5) | 0.0516 (5) | 0.0713 (7) | 0.0020 (4) | 0.0165 (5) | −0.0049 (5) |
O1 | 0.0397 (14) | 0.0642 (17) | 0.0499 (15) | 0.0126 (12) | 0.0184 (12) | 0.0036 (12) |
O2 | 0.0499 (15) | 0.0583 (16) | 0.0463 (14) | 0.0128 (13) | 0.0212 (12) | 0.0064 (12) |
O3 | 0.0516 (15) | 0.0600 (17) | 0.0592 (17) | −0.0085 (13) | 0.0259 (14) | −0.0013 (13) |
N1 | 0.0373 (15) | 0.0417 (16) | 0.0448 (16) | 0.0038 (12) | 0.0161 (13) | 0.0031 (13) |
N2 | 0.0378 (15) | 0.0421 (16) | 0.0402 (16) | 0.0030 (12) | 0.0133 (13) | 0.0013 (12) |
N3 | 0.0526 (19) | 0.061 (2) | 0.0447 (18) | 0.0090 (16) | 0.0252 (15) | 0.0067 (14) |
N4 | 0.0459 (18) | 0.0497 (18) | 0.057 (2) | 0.0010 (14) | 0.0248 (16) | 0.0029 (14) |
C1 | 0.0361 (18) | 0.0406 (19) | 0.047 (2) | 0.0007 (15) | 0.0179 (16) | −0.0015 (15) |
C2 | 0.0362 (18) | 0.0412 (18) | 0.0413 (19) | −0.0008 (14) | 0.0163 (15) | −0.0027 (14) |
C3 | 0.0387 (19) | 0.045 (2) | 0.047 (2) | 0.0038 (16) | 0.0134 (16) | 0.0002 (16) |
C4 | 0.042 (2) | 0.051 (2) | 0.055 (2) | 0.0018 (16) | 0.0245 (18) | −0.0021 (17) |
C5 | 0.057 (2) | 0.057 (2) | 0.050 (2) | 0.0087 (19) | 0.0292 (19) | 0.0052 (18) |
C6 | 0.0330 (18) | 0.045 (2) | 0.052 (2) | 0.0016 (14) | 0.0131 (16) | 0.0069 (16) |
C7 | 0.0298 (17) | 0.0419 (19) | 0.058 (2) | 0.0004 (14) | 0.0142 (17) | 0.0061 (16) |
C8 | 0.044 (2) | 0.049 (2) | 0.073 (3) | 0.0061 (17) | 0.028 (2) | 0.0050 (19) |
C9 | 0.033 (2) | 0.054 (2) | 0.089 (3) | 0.0102 (17) | 0.020 (2) | 0.014 (2) |
C10 | 0.039 (2) | 0.060 (3) | 0.070 (3) | 0.0065 (18) | 0.009 (2) | 0.019 (2) |
C11 | 0.043 (2) | 0.059 (2) | 0.053 (2) | −0.0006 (18) | 0.0110 (18) | 0.0064 (19) |
C12 | 0.042 (2) | 0.049 (2) | 0.044 (2) | 0.0027 (16) | 0.0164 (17) | 0.0019 (16) |
C13 | 0.0367 (18) | 0.0402 (19) | 0.0426 (19) | −0.0040 (15) | 0.0094 (15) | 0.0022 (15) |
C14 | 0.0415 (19) | 0.046 (2) | 0.0420 (19) | −0.0066 (16) | 0.0139 (16) | −0.0031 (15) |
C15 | 0.056 (2) | 0.063 (3) | 0.051 (2) | −0.004 (2) | 0.027 (2) | −0.0019 (19) |
C16 | 0.064 (3) | 0.071 (3) | 0.045 (2) | −0.006 (2) | 0.020 (2) | 0.0082 (19) |
C17 | 0.059 (3) | 0.063 (3) | 0.048 (2) | 0.004 (2) | 0.014 (2) | 0.0117 (19) |
C18 | 0.046 (2) | 0.056 (2) | 0.050 (2) | 0.0023 (17) | 0.0159 (18) | 0.0049 (18) |
C19 | 0.0339 (17) | 0.0390 (18) | 0.049 (2) | 0.0023 (15) | 0.0159 (16) | 0.0002 (15) |
C20 | 0.049 (2) | 0.053 (2) | 0.050 (2) | 0.0000 (18) | 0.0201 (19) | 0.0005 (18) |
C21 | 0.067 (3) | 0.105 (4) | 0.062 (3) | −0.029 (3) | 0.024 (2) | −0.006 (3) |
C22 | 0.060 (3) | 0.063 (3) | 0.077 (3) | 0.002 (2) | 0.043 (2) | 0.008 (2) |
Br1—C4 | 1.906 (4) | C7—C8 | 1.441 (5) |
Mn1—O2 | 1.851 (3) | C8—C9 | 1.357 (6) |
Mn1—O1 | 1.945 (2) | C8—H8 | 0.9300 |
Mn1—N1 | 2.043 (3) | C9—C10 | 1.352 (6) |
Mn1—N2 | 2.175 (3) | C9—H9 | 0.9300 |
Mn1—O3 | 2.190 (3) | C10—C11 | 1.387 (6) |
Mn1—Cl1 | 2.3875 (11) | C10—H10 | 0.9300 |
O1—C7 | 1.308 (4) | C11—H11 | 0.9300 |
O2—C14 | 1.317 (4) | C12—H12 | 0.9300 |
O3—C20 | 1.227 (5) | C13—C19 | 1.371 (5) |
N1—C12 | 1.315 (4) | C13—C18 | 1.412 (5) |
N1—C1 | 1.419 (4) | C13—C14 | 1.447 (5) |
N2—C19 | 1.302 (4) | C14—C15 | 1.352 (5) |
N2—C2 | 1.369 (4) | C15—C16 | 1.372 (6) |
N3—C1 | 1.294 (5) | C15—H15 | 0.9300 |
N3—C5 | 1.344 (5) | C16—C17 | 1.404 (6) |
N4—C20 | 1.323 (5) | C16—H16 | 0.9300 |
N4—C21 | 1.414 (6) | C17—C18 | 1.322 (6) |
N4—C22 | 1.431 (5) | C17—H17 | 0.9300 |
C1—C2 | 1.404 (5) | C18—H18 | 0.9300 |
C2—C3 | 1.404 (5) | C19—H19 | 0.9300 |
C3—C4 | 1.324 (5) | C20—H20 | 0.9300 |
C3—H3 | 0.9300 | C21—H21A | 0.9600 |
C4—C5 | 1.385 (5) | C21—H21B | 0.9600 |
C5—H5 | 0.9300 | C21—H21C | 0.9600 |
C6—C7 | 1.362 (5) | C22—H22A | 0.9600 |
C6—C11 | 1.416 (5) | C22—H22B | 0.9600 |
C6—C12 | 1.438 (5) | C22—H22C | 0.9600 |
O2—Mn1—O1 | 106.71 (11) | C9—C8—H8 | 118.8 |
O2—Mn1—N1 | 161.27 (12) | C7—C8—H8 | 118.8 |
O1—Mn1—N1 | 88.18 (11) | C10—C9—C8 | 120.2 (4) |
O2—Mn1—N2 | 86.90 (11) | C10—C9—H9 | 119.9 |
O1—Mn1—N2 | 165.18 (11) | C8—C9—H9 | 119.9 |
N1—Mn1—N2 | 77.35 (11) | C9—C10—C11 | 118.3 (4) |
O2—Mn1—O3 | 86.03 (11) | C9—C10—H10 | 120.8 |
O1—Mn1—O3 | 84.97 (11) | C11—C10—H10 | 120.8 |
N1—Mn1—O3 | 83.99 (11) | C10—C11—C6 | 123.5 (4) |
N2—Mn1—O3 | 90.27 (11) | C10—C11—H11 | 118.3 |
O2—Mn1—Cl1 | 95.93 (9) | C6—C11—H11 | 118.3 |
O1—Mn1—Cl1 | 95.06 (9) | N1—C12—C6 | 127.6 (3) |
N1—Mn1—Cl1 | 93.95 (9) | N1—C12—H12 | 116.2 |
N2—Mn1—Cl1 | 89.19 (8) | C6—C12—H12 | 116.2 |
O3—Mn1—Cl1 | 177.93 (8) | C19—C13—C18 | 115.9 (3) |
C7—O1—Mn1 | 133.6 (2) | C19—C13—C14 | 123.2 (3) |
C14—O2—Mn1 | 133.8 (2) | C18—C13—C14 | 120.8 (3) |
C20—O3—Mn1 | 123.7 (3) | O2—C14—C15 | 118.8 (4) |
C12—N1—C1 | 121.2 (3) | O2—C14—C13 | 124.6 (3) |
C12—N1—Mn1 | 124.0 (2) | C15—C14—C13 | 116.5 (3) |
C1—N1—Mn1 | 114.7 (2) | C14—C15—C16 | 120.8 (4) |
C19—N2—C2 | 119.6 (3) | C14—C15—H15 | 119.6 |
C19—N2—Mn1 | 125.5 (2) | C16—C15—H15 | 119.6 |
C2—N2—Mn1 | 114.5 (2) | C15—C16—C17 | 123.1 (4) |
C1—N3—C5 | 116.6 (3) | C15—C16—H16 | 118.4 |
C20—N4—C21 | 121.4 (4) | C17—C16—H16 | 118.4 |
C20—N4—C22 | 123.9 (4) | C18—C17—C16 | 118.0 (4) |
C21—N4—C22 | 114.7 (4) | C18—C17—H17 | 121.0 |
N3—C1—C2 | 122.6 (3) | C16—C17—H17 | 121.0 |
N3—C1—N1 | 119.0 (3) | C17—C18—C13 | 120.7 (4) |
C2—C1—N1 | 118.4 (3) | C17—C18—H18 | 119.7 |
N2—C2—C1 | 114.1 (3) | C13—C18—H18 | 119.7 |
N2—C2—C3 | 126.0 (3) | N2—C19—C13 | 125.1 (3) |
C1—C2—C3 | 119.9 (3) | N2—C19—H19 | 117.4 |
C4—C3—C2 | 116.7 (3) | C13—C19—H19 | 117.4 |
C4—C3—H3 | 121.7 | O3—C20—N4 | 126.5 (4) |
C2—C3—H3 | 121.7 | O3—C20—H20 | 116.7 |
C3—C4—C5 | 120.3 (3) | N4—C20—H20 | 116.7 |
C3—C4—Br1 | 118.9 (3) | N4—C21—H21A | 109.5 |
C5—C4—Br1 | 120.9 (3) | N4—C21—H21B | 109.5 |
N3—C5—C4 | 123.9 (4) | H21A—C21—H21B | 109.5 |
N3—C5—H5 | 118.1 | N4—C21—H21C | 109.5 |
C4—C5—H5 | 118.1 | H21A—C21—H21C | 109.5 |
C7—C6—C11 | 117.6 (3) | H21B—C21—H21C | 109.5 |
C7—C6—C12 | 123.7 (3) | N4—C22—H22A | 109.5 |
C11—C6—C12 | 118.6 (4) | N4—C22—H22B | 109.5 |
O1—C7—C6 | 122.2 (3) | H22A—C22—H22B | 109.5 |
O1—C7—C8 | 119.9 (4) | N4—C22—H22C | 109.5 |
C6—C7—C8 | 118.0 (3) | H22A—C22—H22C | 109.5 |
C9—C8—C7 | 122.5 (4) | H22B—C22—H22C | 109.5 |
D—H···A | D—H | H···A | D···A | D—H···A |
C19—H19···Cl1i | 0.93 | 2.81 | 3.691 (2) | 159 |
Symmetry code: (i) −x+1, −y+1, −z. |
Experimental details
Crystal data | |
Chemical formula | [Mn(C19H12BrN3O2)Cl(C3H7NO)] |
Mr | 557.71 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 293 |
a, b, c (Å) | 13.2834 (11), 15.4971 (13), 12.2314 (11) |
β (°) | 117.143 (1) |
V (Å3) | 2240.6 (3) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 2.52 |
Crystal size (mm) | 0.31 × 0.21 × 0.19 |
Data collection | |
Diffractometer | Bruker APEXII CCD area-detector diffractometer |
Absorption correction | Multi-scan (SADABS; Sheldrick, 2008a) |
Tmin, Tmax | 0.508, 0.646 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 10906, 3945, 3238 |
Rint | 0.022 |
(sin θ/λ)max (Å−1) | 0.595 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.039, 0.116, 1.06 |
No. of reflections | 3945 |
No. of parameters | 291 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 1.30, −0.52 |
Computer programs: APEX2 (Bruker, 2004), SAINT-Plus (Bruker, 2001), SHELXS97 (Sheldrick, 2008b), SHELXL97 (Sheldrick, 2008b), SHELXTL (Sheldrick, 2008b).
D—H···A | D—H | H···A | D···A | D—H···A |
C19—H19···Cl1i | 0.93 | 2.81 | 3.691 (2) | 158.87 |
Symmetry code: (i) −x+1, −y+1, −z. |
Acknowledgements
This work was funded by a research grant from the Shanxi Datong University Foundation of Shanxi Province of the People's Republic of China (grant No. 2008 K1). We also thank Huazhong Normal University for supporting this study.
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Because of their interesting structures and wide potential applications, the synthesis and structural investigation of Schiff base complexes have been given much attention. Furthermore, these types of complexes play an important part in the development of coordination chemistry as well as inorganic biochemistry, catalysis, optical materials and so on (Li et al., 2008; Fei & Fang, 2008).
The crystal structure of the title compound is shown in Fig. 1. The coordination sphere of the MnIII ion is a slightly distorted octahedron, in which the four equatorial positions are occupied by two N atoms and two O atoms coming from the tetradentate Schiff base ligand, and the two axial ones with a trans conformation are occupied by one Cl ion and one O atom of the coordinated dimethylamine-methoxyl, respectively. The Mn—N, Mn—O and Mn—Cl bond lengths are basically consistant with those corresponding distances in other Mn-Schiff base complexes (Li et al., 2008; Eltayeb et al., 2008a, b). It is worth noting that centrosymmetric dimers with the short distance of 3.878 (3) Å between the centroids of aromatic rings are formed under the help of the weak intermolecular C—H···Cl hydrogen bond interaction (Table 1).