metal-organic compounds
catena-Poly[[[{5,5′-dimethoxy-2,2′-[ethane-1,2-diylbis(nitrilomethylidyne)]diphenolato}manganese(III)]-μ-acetato] methanol monosolvate]
aDepartment of Chemistry, Howard University, 525 College Street NW, Washington, DC 20059, USA
*Correspondence e-mail: rbutcher99@yahoo.com
The title MnIII compound, {[Mn(C18H18N2O4)(CH3COO)]·CH3OH}n, was synthesized by a reaction between manganese(II) acetate and ethylenebis(4-methoxysalicylaldimine). The structure is made up of bis(4-methoxysalicyldene)ethylenediaminatomanganese(III) units bridged by acetate groups, with Mn—N = 1.9786 (9), Mn—O = 1.8784 (10) and Mn—Oacetate = 2.056 (9) and 2.2571 (9) Å, forming a one dimensional polymer (–Mn–acetate–Mn–acetate–) along [100]. The MnIII atom is in a Jahn–Teller-distorted octahedral environment with cis angles ranging from 81.87 (4) to 96.53 (4)° and trans angles ranging from 166.11 (3) to 173.93 (3)°. The methanol solvent molecule is hydrogen bonded to the phenolate O atom. In addition to this classical hydrogen bond, there are weak C—H⋯O interactions. The structure was determined from a crystal twinned by pseudo-merohedry.
Related literature
For the biological activity of manganese(III) complexes with tetradentate et al. (1999); Mandal et al. (2009); Hulme et al. (1997); Suzuki et al. (1997); Thampidas et al. (2008). For the oxidation of organic compounds using transition metal catalysts, see: Jang & Jacobsen (1991); Kochi (1978).
derived from salicylaldehyde, see: WatkinsonExperimental
Crystal data
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Refinement
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Data collection: CrysAlis PRO (Oxford Diffraction, 2007); cell CrysAlis PRO; data reduction: CrysAlis PRO; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL.
Supporting information
https://doi.org/10.1107/S160053681003984X/bt5366sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S160053681003984X/bt5366Isup2.hkl
The synthesis of the ligand ethylenebis(4-methoxysalicylaldimine) was achieved by the reaction of a solution of (1 g, 16.6 mmol) ethylenediamine in 20 ml me thanol with a solution of (5.0 g, 33.3 mmol) 2-hydroxy-p-anisaldehyde in 40 ml e thanol. This was added dropwise using glass pipette into a round bottomed flask containing the ethylene diamine. The mixture was refluxed for 24 h. Yellow solids were obtained upon solvent removal by evaporation under reduced pressure and drying.
The synthesis of the complex C21H25MnN2O7 was achieved by adding a solution of (0.33 g, 1 mmol) ethylenebis(4-methoxysalicylaldimine) in 3 ml chloroform drop wise to a solution of Mn(CH3COO)2.4H2O (0.25 g, 1 mmol) in 5 ml me thanol. The mixture was stirred for 1 h and then layered with diethyl ether for slow diffusion crystallization process. Crystals suitable for X-ray diffraction were obtained.
H atoms were placed in geometrically idealized positions and constrained to ride on their parent atoms with a C—H distance of 0.95 and 0.99 Å Uiso(H) = 1.2Ueq(C) and 0.98 Å for CH3 [Uiso(H) = 1.5Ueq(C)]. The H atoms attached to N were idealized with an N–H distance of 0.91 Å. One atom (C1A) did not behave well when refined anisotropically. This atom was restrained to an isotropic behavior. The crystal was twinned by a 180° rotation about the c-axis, the contribution of the minor twin component refined to 0.3809 (6).
Manganese(III) complexes with tetradentate Schiff base derived from salicylaldehyde are of great importance due to their application in many biological activities (Watkinson et al., 1999). These biological activities involve the multinuclear cluster of manganese ions within the oxygen evolving complex (OEC) of photosystem(II). This cluster is involved in the photolytic oxidation of water to dioxygen within the OEC of the photosystem(II) (Hulme et al., 1997; Mandal et al., 2009). Other biological activities where the role of manganese has played part are in enzymes such as superoxide dismutase, catalase and orginase (Thampidas et al. 2008). The importance of molecular oxygen to all animals on earth including man is for metabolism and to provide energy for life (Suzuki et al., 1997).
Also organic compounds can be oxidized using transition metal catalysts (Kochi, 1978; Jang & Jacobsen, 1991).
In the title compound C21H25MnN2O7 the structure is made up of bis(4-methoxysalicyldene)ethylenediaminatomanganese(III) moieties bridged by acetate groups with Mn—N(1) = 1.9786 (9) Å and Mn—O(1) = 1.878 (10) Å and Mn—Oacetate = 2.056 (9) Å forming a one dimensional polymer (–Mn-acetate-Mn-acetate-). The Mn atom is in a distorted octahedral environment with cis angles ranging from 81.87 (4)° to 96.54 (4)°. Each manganese(III) ion is at the center of nearly square plane with bond lengths Mn—N(1) = 1.9786 (9) Å, Mn—N(2) = 1.9954 (11) Å, Mn—O(1) = 1.8784 (10) Å and Mn—O(2) = 1.9135 (7) Å. An axial elongation of Mn—O(acetate) i.e. Mn—O(II) = 2.2056 (9) Å is an indication of the Jahn Teller distortion which is expected for a high spin manganese(III) ion in six-coordinate environment. The methanol of solvation is hydrogen bonded to the phenolic oxygen. In addition there are weak C—H···O interactions.
The structure is made up of bis(4-methoxysalicyldene)ethylenediaminatomanganese(III) moieties bridged by acetate groups with Mn—N(1) = 1.9786 (9) Å and Mn—O(1) = 1.878 (10) Å and Mn—O\ãcetate\~ = 2.056 (9) Å forming a one dimensional polymer (–Mn-acetate-Mn-acetate-). The Mn atom is in a distorted octahedral environment with cis angles ranging from 81.87 (4)° to 96.54 (4)°. The methanol of solvation is hydrogen bonded to the phenolic oxygen. In addition there are weak C—H···O interactions.
For the biological activity of manganese(III) complexes with tetradentate
derived from salicylaldehyde, see: Watkinson et al. (1999); Mandal et al. (2009); Hulme et al. (1997); Suzuki et al. (1997); Thampidas et al. (2008). For the oxidation of organic compounds using transition metal catalysts, see: Jang & Jacobsen (1991); Kochi (1978).Data collection: CrysAlis PRO (Oxford Diffraction, 2007); cell
CrysAlis PRO (Oxford Diffraction, 2007); data reduction: CrysAlis PRO (Oxford Diffraction, 2007); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).[Mn(C18H18N2O4)(C2H3O2)]·CH4O | F(000) = 984 |
Mr = 472.37 | Dx = 1.527 Mg m−3 |
Monoclinic, P21/a | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2yab | Cell parameters from 13341 reflections |
a = 6.6237 (2) Å | θ = 4.7–32.6° |
b = 21.5007 (6) Å | µ = 0.69 mm−1 |
c = 14.5544 (4) Å | T = 110 K |
β = 97.539 (3)° | Plate, light green |
V = 2054.84 (10) Å3 | 0.52 × 0.41 × 0.16 mm |
Z = 4 |
Oxford Diffraction Gemini diffractometer with Ruby detector | 27951 independent reflections |
Radiation source: Enhance (Mo) X-ray Source | 23528 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.000 |
Detector resolution: 10.5081 pixels mm-1 | θmax = 32.7°, θmin = 4.7° |
ω scans | h = −10→8 |
Absorption correction: multi-scan (CrysAlis RED; Oxford Diffraction, 2007) | k = −31→31 |
Tmin = 0.914, Tmax = 1.000 | l = −21→21 |
27951 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)] = 0.050 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.135 | H-atom parameters constrained |
S = 1.03 | w = 1/[σ2(Fo2) + (0.0898P)2] where P = (Fo2 + 2Fc2)/3 |
27951 reflections | (Δ/σ)max = 0.002 |
286 parameters | Δρmax = 0.85 e Å−3 |
6 restraints | Δρmin = −0.69 e Å−3 |
[Mn(C18H18N2O4)(C2H3O2)]·CH4O | V = 2054.84 (10) Å3 |
Mr = 472.37 | Z = 4 |
Monoclinic, P21/a | Mo Kα radiation |
a = 6.6237 (2) Å | µ = 0.69 mm−1 |
b = 21.5007 (6) Å | T = 110 K |
c = 14.5544 (4) Å | 0.52 × 0.41 × 0.16 mm |
β = 97.539 (3)° |
Oxford Diffraction Gemini diffractometer with Ruby detector | 27951 independent reflections |
Absorption correction: multi-scan (CrysAlis RED; Oxford Diffraction, 2007) | 23528 reflections with I > 2σ(I) |
Tmin = 0.914, Tmax = 1.000 | Rint = 0.000 |
27951 measured reflections |
R[F2 > 2σ(F2)] = 0.050 | 6 restraints |
wR(F2) = 0.135 | H-atom parameters constrained |
S = 1.03 | Δρmax = 0.85 e Å−3 |
27951 reflections | Δρmin = −0.69 e Å−3 |
286 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 | ||
Mn | 0.77366 (3) | 0.606687 (7) | 0.227328 (16) | 0.00949 (5) | |
O1 | 0.80026 (15) | 0.61005 (4) | 0.35732 (7) | 0.01268 (18) | |
O2 | 0.76671 (14) | 0.51776 (3) | 0.22257 (7) | 0.01220 (16) | |
O3 | 0.71680 (16) | 0.69036 (4) | 0.65521 (7) | 0.0195 (2) | |
O4 | 0.79190 (16) | 0.31182 (4) | 0.10149 (7) | 0.0208 (2) | |
O11 | 0.44142 (13) | 0.62058 (4) | 0.21616 (7) | 0.01380 (19) | |
O1S | 0.8413 (2) | 0.44152 (5) | 0.38349 (9) | 0.0392 (3) | |
H1S | 0.8159 | 0.4732 | 0.3501 | 0.047* | |
O12 | 0.11057 (14) | 0.61395 (4) | 0.21865 (8) | 0.0168 (2) | |
N1 | 0.79273 (15) | 0.69822 (4) | 0.21731 (8) | 0.0113 (2) | |
N2 | 0.74229 (17) | 0.61290 (4) | 0.08940 (8) | 0.0104 (2) | |
C1 | 0.76904 (19) | 0.65884 (6) | 0.41014 (10) | 0.0119 (3) | |
C2 | 0.75241 (19) | 0.64810 (5) | 0.50357 (10) | 0.0134 (2) | |
H2A | 0.7550 | 0.6067 | 0.5264 | 0.016* | |
C3 | 0.73217 (19) | 0.69741 (6) | 0.56355 (10) | 0.0146 (3) | |
C4 | 0.7072 (3) | 0.62795 (6) | 0.68929 (10) | 0.0231 (3) | |
H4A | 0.5869 | 0.6070 | 0.6570 | 0.035* | |
H4B | 0.6982 | 0.6289 | 0.7560 | 0.035* | |
H4C | 0.8301 | 0.6053 | 0.6782 | 0.035* | |
C5 | 0.72696 (19) | 0.75947 (6) | 0.53186 (11) | 0.0157 (3) | |
H5A | 0.7143 | 0.7930 | 0.5732 | 0.019* | |
C6 | 0.74048 (19) | 0.77021 (6) | 0.44040 (11) | 0.0146 (3) | |
H6A | 0.7377 | 0.8119 | 0.4188 | 0.018* | |
C7 | 0.75847 (18) | 0.72128 (6) | 0.37643 (10) | 0.0118 (2) | |
C8 | 0.78234 (19) | 0.73750 (5) | 0.28384 (9) | 0.0121 (2) | |
H8A | 0.7914 | 0.7805 | 0.2697 | 0.014* | |
C9 | 0.8389 (2) | 0.71838 (5) | 0.12610 (9) | 0.0136 (2) | |
H9A | 0.9868 | 0.7147 | 0.1229 | 0.016* | |
H9B | 0.7985 | 0.7624 | 0.1152 | 0.016* | |
C10 | 0.7205 (2) | 0.67696 (5) | 0.05339 (9) | 0.0146 (3) | |
H10A | 0.5752 | 0.6892 | 0.0434 | 0.018* | |
H10B | 0.7764 | 0.6803 | −0.0062 | 0.018* | |
C11 | 0.74324 (19) | 0.56693 (5) | 0.03192 (10) | 0.0137 (3) | |
H11A | 0.7325 | 0.5767 | −0.0322 | 0.016* | |
C12 | 0.75926 (19) | 0.50231 (5) | 0.05733 (10) | 0.0122 (2) | |
C13 | 0.7634 (2) | 0.45918 (5) | −0.01514 (10) | 0.0142 (3) | |
H13A | 0.7566 | 0.4741 | −0.0769 | 0.017* | |
C14 | 0.7771 (2) | 0.39615 (5) | 0.00064 (9) | 0.0147 (2) | |
H14A | 0.7825 | 0.3678 | −0.0490 | 0.018* | |
C15 | 0.78265 (19) | 0.37496 (5) | 0.09200 (10) | 0.0136 (3) | |
C16 | 0.7857 (2) | 0.28654 (6) | 0.19224 (11) | 0.0216 (3) | |
H16A | 0.9072 | 0.2998 | 0.2334 | 0.032* | |
H16B | 0.7823 | 0.2410 | 0.1887 | 0.032* | |
H16C | 0.6636 | 0.3016 | 0.2166 | 0.032* | |
C17 | 0.77871 (19) | 0.41586 (5) | 0.16587 (9) | 0.0126 (2) | |
H17A | 0.7830 | 0.4002 | 0.2271 | 0.015* | |
C18 | 0.76836 (19) | 0.48048 (5) | 0.14978 (9) | 0.0108 (2) | |
C1A | 0.2875 (2) | 0.59357 (5) | 0.23982 (9) | 0.0124 (2) | |
C2A | 0.3177 (2) | 0.53384 (6) | 0.29512 (12) | 0.0230 (3) | |
H2AA | 0.3698 | 0.5015 | 0.2571 | 0.035* | |
H2AB | 0.1872 | 0.5205 | 0.3134 | 0.035* | |
H2AC | 0.4155 | 0.5410 | 0.3507 | 0.035* | |
C1S | 0.7768 (3) | 0.45186 (7) | 0.47111 (13) | 0.0281 (4) | |
H1S1 | 0.8510 | 0.4239 | 0.5169 | 0.042* | |
H1S2 | 0.6304 | 0.4437 | 0.4672 | 0.042* | |
H1S3 | 0.8044 | 0.4951 | 0.4899 | 0.042* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Mn | 0.01095 (8) | 0.00751 (7) | 0.01000 (8) | 0.00012 (7) | 0.00128 (8) | 0.00023 (7) |
O1 | 0.0164 (4) | 0.0094 (4) | 0.0124 (5) | 0.0016 (3) | 0.0022 (4) | −0.0005 (3) |
O2 | 0.0173 (4) | 0.0095 (3) | 0.0100 (4) | 0.0008 (3) | 0.0024 (4) | −0.0002 (4) |
O3 | 0.0303 (6) | 0.0154 (4) | 0.0131 (5) | 0.0011 (4) | 0.0040 (4) | −0.0029 (4) |
O4 | 0.0377 (6) | 0.0095 (4) | 0.0156 (5) | 0.0000 (4) | 0.0044 (5) | −0.0005 (4) |
O11 | 0.0089 (4) | 0.0142 (4) | 0.0187 (5) | −0.0002 (3) | 0.0033 (4) | 0.0013 (4) |
O1S | 0.0710 (9) | 0.0293 (6) | 0.0181 (6) | 0.0173 (6) | 0.0087 (7) | 0.0048 (5) |
O12 | 0.0117 (4) | 0.0169 (4) | 0.0222 (6) | −0.0007 (3) | 0.0035 (4) | 0.0014 (4) |
N1 | 0.0097 (5) | 0.0112 (4) | 0.0132 (6) | −0.0008 (4) | 0.0025 (4) | 0.0008 (4) |
N2 | 0.0103 (5) | 0.0080 (4) | 0.0131 (5) | 0.0009 (4) | 0.0027 (4) | 0.0016 (4) |
C1 | 0.0097 (6) | 0.0119 (5) | 0.0133 (7) | 0.0003 (4) | −0.0014 (5) | −0.0021 (5) |
C2 | 0.0168 (6) | 0.0088 (5) | 0.0144 (7) | −0.0004 (5) | 0.0015 (5) | −0.0013 (5) |
C3 | 0.0143 (6) | 0.0173 (6) | 0.0121 (7) | 0.0002 (5) | 0.0012 (5) | −0.0008 (5) |
C4 | 0.0358 (8) | 0.0185 (6) | 0.0150 (7) | −0.0007 (7) | 0.0032 (7) | 0.0001 (5) |
C5 | 0.0158 (6) | 0.0138 (6) | 0.0173 (7) | 0.0000 (5) | 0.0011 (5) | −0.0056 (5) |
C6 | 0.0135 (6) | 0.0104 (5) | 0.0196 (8) | 0.0001 (5) | 0.0010 (5) | −0.0024 (5) |
C7 | 0.0092 (6) | 0.0120 (5) | 0.0139 (7) | 0.0001 (4) | 0.0009 (4) | −0.0012 (5) |
C8 | 0.0097 (5) | 0.0098 (5) | 0.0166 (7) | 0.0000 (5) | 0.0013 (5) | 0.0011 (4) |
C9 | 0.0150 (6) | 0.0114 (5) | 0.0147 (7) | −0.0022 (5) | 0.0033 (5) | 0.0024 (5) |
C10 | 0.0193 (6) | 0.0106 (5) | 0.0140 (6) | 0.0018 (5) | 0.0022 (6) | 0.0048 (5) |
C11 | 0.0147 (6) | 0.0151 (5) | 0.0111 (6) | 0.0007 (5) | 0.0013 (5) | 0.0018 (5) |
C12 | 0.0138 (6) | 0.0112 (5) | 0.0114 (6) | 0.0004 (5) | 0.0010 (5) | −0.0004 (5) |
C13 | 0.0154 (6) | 0.0153 (5) | 0.0117 (6) | −0.0007 (5) | 0.0017 (5) | 0.0000 (5) |
C14 | 0.0187 (6) | 0.0142 (5) | 0.0111 (6) | −0.0014 (5) | 0.0019 (5) | −0.0032 (5) |
C15 | 0.0162 (6) | 0.0094 (5) | 0.0150 (7) | 0.0000 (4) | 0.0013 (5) | −0.0013 (5) |
C16 | 0.0346 (8) | 0.0114 (5) | 0.0191 (7) | 0.0005 (6) | 0.0043 (6) | 0.0020 (5) |
C17 | 0.0148 (6) | 0.0110 (5) | 0.0120 (6) | −0.0002 (5) | 0.0014 (5) | −0.0006 (5) |
C18 | 0.0093 (5) | 0.0114 (5) | 0.0115 (6) | 0.0015 (5) | 0.0008 (5) | −0.0013 (4) |
C1A | 0.0146 (5) | 0.0116 (5) | 0.0108 (6) | 0.0041 (5) | 0.0005 (5) | −0.0031 (4) |
C2A | 0.0182 (7) | 0.0212 (6) | 0.0308 (9) | 0.0016 (6) | 0.0077 (6) | 0.0135 (6) |
C1S | 0.0338 (9) | 0.0290 (8) | 0.0218 (9) | 0.0001 (7) | 0.0048 (7) | 0.0003 (7) |
Mn—O1 | 1.8784 (10) | C6—C7 | 1.4202 (19) |
Mn—O2 | 1.9135 (7) | C6—H6A | 0.9500 |
Mn—N1 | 1.9786 (9) | C7—C8 | 1.4208 (19) |
Mn—N2 | 1.9954 (11) | C8—H8A | 0.9500 |
Mn—O11 | 2.2056 (9) | C9—C10 | 1.5199 (18) |
Mn—O12i | 2.2571 (9) | C9—H9A | 0.9900 |
O1—C1 | 1.3327 (15) | C9—H9B | 0.9900 |
O2—C18 | 1.3297 (15) | C10—H10A | 0.9900 |
O3—C3 | 1.3597 (17) | C10—H10B | 0.9900 |
O3—C4 | 1.4349 (16) | C11—C12 | 1.4380 (16) |
O4—C15 | 1.3650 (14) | C11—H11A | 0.9500 |
O4—C16 | 1.4339 (17) | C12—C13 | 1.4075 (18) |
O11—C1A | 1.2598 (15) | C12—C18 | 1.4189 (18) |
O1S—C1S | 1.414 (2) | C13—C14 | 1.3755 (16) |
O1S—H1S | 0.8400 | C13—H13A | 0.9500 |
O12—C1A | 1.2514 (15) | C14—C15 | 1.4013 (18) |
O12—Mnii | 2.2571 (9) | C14—H14A | 0.9500 |
N1—C8 | 1.2935 (16) | C15—C17 | 1.3919 (18) |
N1—C9 | 1.4663 (17) | C16—H16A | 0.9800 |
N2—C11 | 1.2954 (16) | C16—H16B | 0.9800 |
N2—C10 | 1.4741 (14) | C16—H16C | 0.9800 |
C1—C2 | 1.398 (2) | C17—C18 | 1.4092 (16) |
C1—C7 | 1.4279 (17) | C17—H17A | 0.9500 |
C2—C3 | 1.3909 (18) | C1A—C2A | 1.5148 (17) |
C2—H2A | 0.9500 | C2A—H2AA | 0.9800 |
C3—C5 | 1.4109 (17) | C2A—H2AB | 0.9800 |
C4—H4A | 0.9800 | C2A—H2AC | 0.9800 |
C4—H4B | 0.9800 | C1S—H1S1 | 0.9800 |
C4—H4C | 0.9800 | C1S—H1S2 | 0.9800 |
C5—C6 | 1.365 (2) | C1S—H1S3 | 0.9800 |
C5—H5A | 0.9500 | ||
O1—Mn—O2 | 94.22 (4) | N1—C9—C10 | 107.90 (10) |
O1—Mn—N1 | 92.15 (4) | N1—C9—H9A | 110.1 |
O2—Mn—N1 | 173.02 (5) | C10—C9—H9A | 110.1 |
O1—Mn—N2 | 173.93 (3) | N1—C9—H9B | 110.1 |
O2—Mn—N2 | 91.81 (4) | C10—C9—H9B | 110.1 |
N1—Mn—N2 | 81.87 (4) | H9A—C9—H9B | 108.4 |
O1—Mn—O11 | 91.71 (4) | N2—C10—C9 | 106.41 (10) |
O2—Mn—O11 | 96.53 (4) | N2—C10—H10A | 110.4 |
N1—Mn—O11 | 86.13 (4) | C9—C10—H10A | 110.4 |
N2—Mn—O11 | 86.88 (4) | N2—C10—H10B | 110.4 |
O1—Mn—O12i | 95.22 (4) | C9—C10—H10B | 110.4 |
O2—Mn—O12i | 94.96 (4) | H10A—C10—H10B | 108.6 |
N1—Mn—O12i | 81.60 (4) | N2—C11—C12 | 125.27 (13) |
N2—Mn—O12i | 84.97 (4) | N2—C11—H11A | 117.4 |
O11—Mn—O12i | 166.11 (3) | C12—C11—H11A | 117.4 |
C1—O1—Mn | 127.60 (8) | C13—C12—C18 | 119.34 (11) |
C18—O2—Mn | 128.94 (8) | C13—C12—C11 | 116.87 (12) |
C3—O3—C4 | 117.12 (10) | C18—C12—C11 | 123.78 (12) |
C15—O4—C16 | 117.64 (10) | C14—C13—C12 | 122.10 (12) |
C1A—O11—Mn | 138.82 (8) | C14—C13—H13A | 118.9 |
C1S—O1S—H1S | 109.5 | C12—C13—H13A | 118.9 |
C1A—O12—Mnii | 149.65 (9) | C13—C14—C15 | 118.14 (12) |
C8—N1—C9 | 121.50 (10) | C13—C14—H14A | 120.9 |
C8—N1—Mn | 125.74 (9) | C15—C14—H14A | 120.9 |
C9—N1—Mn | 112.57 (8) | O4—C15—C17 | 123.73 (12) |
C11—N2—C10 | 119.47 (11) | O4—C15—C14 | 114.49 (11) |
C11—N2—Mn | 126.15 (9) | C17—C15—C14 | 121.78 (11) |
C10—N2—Mn | 114.36 (8) | O4—C16—H16A | 109.5 |
O1—C1—C2 | 117.98 (11) | O4—C16—H16B | 109.5 |
O1—C1—C7 | 123.11 (13) | H16A—C16—H16B | 109.5 |
C2—C1—C7 | 118.88 (12) | O4—C16—H16C | 109.5 |
C3—C2—C1 | 120.73 (11) | H16A—C16—H16C | 109.5 |
C3—C2—H2A | 119.6 | H16B—C16—H16C | 109.5 |
C1—C2—H2A | 119.6 | C15—C17—C18 | 120.00 (12) |
O3—C3—C2 | 123.82 (12) | C15—C17—H17A | 120.0 |
O3—C3—C5 | 115.12 (12) | C18—C17—H17A | 120.0 |
C2—C3—C5 | 121.06 (14) | O2—C18—C17 | 117.86 (11) |
O3—C4—H4A | 109.5 | O2—C18—C12 | 123.53 (11) |
O3—C4—H4B | 109.5 | C17—C18—C12 | 118.61 (11) |
H4A—C4—H4B | 109.5 | O12—C1A—O11 | 122.45 (11) |
O3—C4—H4C | 109.5 | O12—C1A—C2A | 118.79 (12) |
H4A—C4—H4C | 109.5 | O11—C1A—C2A | 118.76 (11) |
H4B—C4—H4C | 109.5 | C1A—C2A—H2AA | 109.5 |
C6—C5—C3 | 118.47 (12) | C1A—C2A—H2AB | 109.5 |
C6—C5—H5A | 120.8 | H2AA—C2A—H2AB | 109.5 |
C3—C5—H5A | 120.8 | C1A—C2A—H2AC | 109.5 |
C5—C6—C7 | 122.39 (12) | H2AA—C2A—H2AC | 109.5 |
C5—C6—H6A | 118.8 | H2AB—C2A—H2AC | 109.5 |
C7—C6—H6A | 118.8 | O1S—C1S—H1S1 | 109.5 |
C6—C7—C8 | 117.99 (12) | O1S—C1S—H1S2 | 109.5 |
C6—C7—C1 | 118.41 (13) | H1S1—C1S—H1S2 | 109.5 |
C8—C7—C1 | 123.38 (12) | O1S—C1S—H1S3 | 109.5 |
N1—C8—C7 | 124.97 (11) | H1S1—C1S—H1S3 | 109.5 |
N1—C8—H8A | 117.5 | H1S2—C1S—H1S3 | 109.5 |
C7—C8—H8A | 117.5 | ||
O2—Mn—O1—C1 | −163.53 (10) | C5—C6—C7—C8 | −176.75 (12) |
N1—Mn—O1—C1 | 19.33 (11) | C5—C6—C7—C1 | −1.98 (19) |
O11—Mn—O1—C1 | −66.86 (10) | O1—C1—C7—C6 | −175.17 (12) |
O12i—Mn—O1—C1 | 101.09 (10) | C2—C1—C7—C6 | 2.75 (17) |
O1—Mn—O2—C18 | −173.04 (11) | O1—C1—C7—C8 | −0.71 (19) |
N1—Mn—O2—C18 | −17.3 (4) | C2—C1—C7—C8 | 177.21 (13) |
O11—Mn—O2—C18 | 94.75 (11) | C9—N1—C8—C7 | −173.48 (12) |
O12i—Mn—O2—C18 | −77.42 (11) | Mn—N1—C8—C7 | 1.05 (19) |
O1—Mn—O11—C1A | −62.12 (14) | C6—C7—C8—N1 | −177.21 (12) |
O2—Mn—O11—C1A | 32.33 (14) | C1—C7—C8—N1 | 8.3 (2) |
N1—Mn—O11—C1A | −154.15 (14) | C8—N1—C9—C10 | −145.66 (12) |
N2—Mn—O11—C1A | 123.80 (14) | Mn—N1—C9—C10 | 39.15 (12) |
O12i—Mn—O11—C1A | 177.90 (14) | C11—N2—C10—C9 | −148.48 (12) |
O1—Mn—N1—C8 | −11.85 (11) | Mn—N2—C10—C9 | 30.37 (13) |
N2—Mn—N1—C8 | 167.12 (11) | N1—C9—C10—N2 | −43.46 (13) |
O11—Mn—N1—C8 | 79.72 (11) | C10—N2—C11—C12 | −178.70 (12) |
O12i—Mn—N1—C8 | −106.81 (11) | Mn—N2—C11—C12 | 2.60 (19) |
O1—Mn—N1—C9 | 163.10 (9) | N2—C11—C12—C13 | −178.25 (12) |
N2—Mn—N1—C9 | −17.93 (9) | N2—C11—C12—C18 | 2.5 (2) |
O11—Mn—N1—C9 | −105.33 (9) | C18—C12—C13—C14 | −0.3 (2) |
O12i—Mn—N1—C9 | 68.14 (9) | C11—C12—C13—C14 | −179.57 (12) |
O2—Mn—N2—C11 | −6.26 (11) | C12—C13—C14—C15 | 1.3 (2) |
N1—Mn—N2—C11 | 170.77 (12) | C16—O4—C15—C17 | 3.60 (18) |
O11—Mn—N2—C11 | −102.70 (11) | C16—O4—C15—C14 | −176.34 (12) |
O12i—Mn—N2—C11 | 88.56 (11) | C13—C14—C15—O4 | 178.69 (12) |
O2—Mn—N2—C10 | 174.99 (9) | C13—C14—C15—C17 | −1.3 (2) |
N1—Mn—N2—C10 | −7.99 (9) | O4—C15—C17—C18 | −179.78 (11) |
O11—Mn—N2—C10 | 78.55 (9) | C14—C15—C17—C18 | 0.2 (2) |
O12i—Mn—N2—C10 | −90.19 (9) | Mn—O2—C18—C17 | 174.98 (8) |
Mn—O1—C1—C2 | 165.80 (9) | Mn—O2—C18—C12 | −5.35 (19) |
Mn—O1—C1—C7 | −16.26 (17) | C15—C17—C18—O2 | −179.44 (11) |
O1—C1—C2—C3 | 176.07 (11) | C15—C17—C18—C12 | 0.88 (18) |
C7—C1—C2—C3 | −1.96 (19) | C13—C12—C18—O2 | 179.53 (11) |
C4—O3—C3—C2 | −4.39 (19) | C11—C12—C18—O2 | −1.3 (2) |
C4—O3—C3—C5 | 175.82 (12) | C13—C12—C18—C17 | −0.80 (19) |
C1—C2—C3—O3 | −179.49 (13) | C11—C12—C18—C17 | 178.40 (11) |
C1—C2—C3—C5 | 0.3 (2) | Mnii—O12—C1A—O11 | −176.52 (12) |
O3—C3—C5—C6 | −179.64 (12) | Mnii—O12—C1A—C2A | 4.1 (3) |
C2—C3—C5—C6 | 0.57 (19) | Mn—O11—C1A—O12 | −177.27 (9) |
C3—C5—C6—C7 | 0.3 (2) | Mn—O11—C1A—C2A | 2.1 (2) |
Symmetry codes: (i) x+1, y, z; (ii) x−1, y, z. |
D—H···A | D—H | H···A | D···A | D—H···A |
O1S—H1S···O2 | 0.84 | 2.08 | 2.8484 (15) | 153 |
C8—H8A···O11iii | 0.95 | 2.51 | 3.4152 (15) | 158 |
C8—H8A···O12iii | 0.95 | 2.63 | 3.4802 (14) | 150 |
C16—H16B···O3iv | 0.98 | 2.52 | 3.0358 (17) | 113 |
Symmetry codes: (iii) x+1/2, −y+3/2, z; (iv) −x+3/2, y−1/2, −z+1. |
Experimental details
Crystal data | |
Chemical formula | [Mn(C18H18N2O4)(C2H3O2)]·CH4O |
Mr | 472.37 |
Crystal system, space group | Monoclinic, P21/a |
Temperature (K) | 110 |
a, b, c (Å) | 6.6237 (2), 21.5007 (6), 14.5544 (4) |
β (°) | 97.539 (3) |
V (Å3) | 2054.84 (10) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.69 |
Crystal size (mm) | 0.52 × 0.41 × 0.16 |
Data collection | |
Diffractometer | Oxford Diffraction Gemini diffractometer with Ruby detector |
Absorption correction | Multi-scan (CrysAlis RED; Oxford Diffraction, 2007) |
Tmin, Tmax | 0.914, 1.000 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 27951, 27951, 23528 |
Rint | 0.000 |
(sin θ/λ)max (Å−1) | 0.761 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.050, 0.135, 1.03 |
No. of reflections | 27951 |
No. of parameters | 286 |
No. of restraints | 6 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.85, −0.69 |
Computer programs: CrysAlis PRO (Oxford Diffraction, 2007), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
O1S—H1S···O2 | 0.84 | 2.08 | 2.8484 (15) | 152.5 |
C8—H8A···O11i | 0.95 | 2.51 | 3.4152 (15) | 158.2 |
C8—H8A···O12i | 0.95 | 2.63 | 3.4802 (14) | 149.5 |
C16—H16B···O3ii | 0.98 | 2.52 | 3.0358 (17) | 112.8 |
Symmetry codes: (i) x+1/2, −y+3/2, z; (ii) −x+3/2, y−1/2, −z+1. |
Acknowledgements
RJB wishes to acknowledge the NSF-MRI program (grant CHE-0619278) for funds to purchase the diffractometer.
References
Hulme, C. E., Watkinson, M., Haynes, M., Pritchard, R. G., McAuliffe, C. A., Jaiboon, N., Beagley, B., Sousa, A., Barmejo, M. R. & Fondo, M. (1997). J. Chem. Soc. Dalton Trans. pp. 31–41. Google Scholar
Jang, W. & Jacobsen, E. N. (1991). J. Org. Chem. 56, 2296–2298. Google Scholar
Kochi, J. K. (1978). Organometallic mechanism and catalysts. New York: Academic Press. Google Scholar
Mandal, D., Chatterjee, P. B., Battacharya, S., Choi, K. Y., Clerac, R. & Chaudhury, M. (2009). Inorg. Chem. 48, 1826–1835. Web of Science CSD CrossRef PubMed CAS Google Scholar
Oxford Diffraction (2007). CrysAlis PRO and CrysAlis RED. Oxford Diffraction Ltd, Abingdon, England. Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Suzuki, M., Ishikawa, T., Harada, A., Ohba, S., Sakamoto, M. & Nishida, Y. (1997). Polyhedron, 16, 2553–2561. CSD CrossRef CAS Web of Science Google Scholar
Thampidas, V. S., Radhakrishnan, T. & Pike, R. D. (2008). Acta Cryst. E64, m150–m151. Web of Science CSD CrossRef IUCr Journals Google Scholar
Watkinson, M., Fondo, M., Bermejo, M. R., Sousa, A., McAuliffe, C. A., Pritchard, R. G., Jaiboon, N., Nadeem, A. & Naeem, M. (1999). J. Chem. Soc. Dalton Trans. pp. 31–41. Web of Science CSD CrossRef 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.
Manganese(III) complexes with tetradentate Schiff base derived from salicylaldehyde are of great importance due to their application in many biological activities (Watkinson et al., 1999). These biological activities involve the multinuclear cluster of manganese ions within the oxygen evolving complex (OEC) of photosystem(II). This cluster is involved in the photolytic oxidation of water to dioxygen within the OEC of the photosystem(II) (Hulme et al., 1997; Mandal et al., 2009). Other biological activities where the role of manganese has played part are in enzymes such as superoxide dismutase, catalase and orginase (Thampidas et al. 2008). The importance of molecular oxygen to all animals on earth including man is for metabolism and to provide energy for life (Suzuki et al., 1997).
Also organic compounds can be oxidized using transition metal catalysts (Kochi, 1978; Jang & Jacobsen, 1991).
In the title compound C21H25MnN2O7 the structure is made up of bis(4-methoxysalicyldene)ethylenediaminatomanganese(III) moieties bridged by acetate groups with Mn—N(1) = 1.9786 (9) Å and Mn—O(1) = 1.878 (10) Å and Mn—Oacetate = 2.056 (9) Å forming a one dimensional polymer (–Mn-acetate-Mn-acetate-). The Mn atom is in a distorted octahedral environment with cis angles ranging from 81.87 (4)° to 96.54 (4)°. Each manganese(III) ion is at the center of nearly square plane with bond lengths Mn—N(1) = 1.9786 (9) Å, Mn—N(2) = 1.9954 (11) Å, Mn—O(1) = 1.8784 (10) Å and Mn—O(2) = 1.9135 (7) Å. An axial elongation of Mn—O(acetate) i.e. Mn—O(II) = 2.2056 (9) Å is an indication of the Jahn Teller distortion which is expected for a high spin manganese(III) ion in six-coordinate environment. The methanol of solvation is hydrogen bonded to the phenolic oxygen. In addition there are weak C—H···O interactions.
The structure is made up of bis(4-methoxysalicyldene)ethylenediaminatomanganese(III) moieties bridged by acetate groups with Mn—N(1) = 1.9786 (9) Å and Mn—O(1) = 1.878 (10) Å and Mn—O\ãcetate\~ = 2.056 (9) Å forming a one dimensional polymer (–Mn-acetate-Mn-acetate-). The Mn atom is in a distorted octahedral environment with cis angles ranging from 81.87 (4)° to 96.54 (4)°. The methanol of solvation is hydrogen bonded to the phenolic oxygen. In addition there are weak C—H···O interactions.