metal-organic compounds
Aqua{6,6′-dimethoxy-2,2′-[ethane-1,2-diylbis(nitrilomethylidyne)]diphenolato}(4-hydroxybenzoato)manganese(III)
aDepartment of Chemistry, SN College, Varkala, Kerala 695 145, India, and bDepartment of Chemistry, College of William and Mary, PO Box 8795, Williamsburg, VA 23187-8795, USA
*Correspondence e-mail: dasthampi@hotmail.com
The title compound, [Mn(C18H18N2O4)(C7H5O3)(H2O)], was synthesized by a template reaction of ethane-1,2-diamine and 3-methoxysalicylaldehyde in presence of manganese(II) 4-hydroxybenzoate. The Jahn–Teller-distorted manganese(III) centre has an octahedral geometry. Extensive O—H⋯O hydrogen-bonding interactions generate a two-dimensional sheet structure parallel to (103).
Related literature
For background to the coordination chemistry of manganese, see: Christou (2005); Yocum & Pecoraro (1999); McEvoy & Brudvig (2006); Pecoraro (1992). For the structures of manganese complexes containing Schiff base and carboxylate ligands, see: Bermejo et al. (2006); Hulme et al. (1997); Zhang & Janiak (2001).
Experimental
Crystal data
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Refinement
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Data collection: APEX2 (Bruker, 2004); cell SAINT-Plus (Bruker, 2004); data reduction: SAINT-Plus; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997) and Mercury (Macrae et al., 2006); software used to prepare material for publication: SHELXL97.
Supporting information
10.1107/S1600536809032553/bt5032sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536809032553/bt5032Isup2.hkl
To a solution of [Mn(4-OHC6H4CO2)(H2O)2].H2O (1.00 g, 2.61 mmol), and 3-methoxysalicylaldehyde (0.76 g, 5.22 mmol) in methanol (40 ml), ethane-1,2-diamine (0.16 g, 2.61 mmol) was added. The solution was stirred for 20 minutes, filtered and left to evaporation in an open conical flask. Brown crystals were deposited in 2–3 days. These were collected by filtration, washed with methanol, and dried in air. Crystals were grown from a DMF solution.
All hydrogen atoms were initially located in the difference map and then were placed in theoretical positions using a riding model. The methyl groups and the O-H groups were allowed to rotate but not to tip. Csp2—H = 0.95 Å, Csp3—H = 0.99 Å, Uiso(H) = 1.2Ueq(C,O).
Data collection: APEX2 (Bruker, 2004); cell
SAINT-Plus (Bruker, 2004); data reduction: SAINT-Plus (Bruker, 2004); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997) and Mercury (Macrae et al., 2006); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008).[Mn(C18H18N2O4)(C7H5O3)(H2O)] | F(000) = 1112 |
Mr = 536.41 | Dx = 1.449 Mg m−3 |
Monoclinic, P21/c | Cu Kα radiation, λ = 1.54178 Å |
Hall symbol: -P 2ybc | Cell parameters from 305 reflections |
a = 8.5988 (3) Å | θ = 9.7–72.7° |
b = 13.5524 (5) Å | µ = 4.82 mm−1 |
c = 21.1335 (8) Å | T = 100 K |
β = 93.280 (2)° | Block, red |
V = 2458.75 (16) Å3 | 0.43 × 0.38 × 0.24 mm |
Z = 4 |
Bruker SMART APEXII CCD diffractometer | 4259 independent reflections |
Radiation source: fine-focus sealed tube | 3766 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.033 |
ω and ψ scans | θmax = 67.0°, θmin = 3.9° |
Absorption correction: numerical (SADABS; Sheldrick, 2004) | h = −10→10 |
Tmin = 0.229, Tmax = 0.388 | k = −16→16 |
26252 measured reflections | l = −25→23 |
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)] = 0.029 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.082 | H-atom parameters constrained |
S = 1.04 | w = 1/[σ2(Fo2) + (0.0482P)2 + 0.482P] where P = (Fo2 + 2Fc2)/3 |
4259 reflections | (Δ/σ)max = 0.001 |
329 parameters | Δρmax = 0.17 e Å−3 |
0 restraints | Δρmin = −0.31 e Å−3 |
[Mn(C18H18N2O4)(C7H5O3)(H2O)] | V = 2458.75 (16) Å3 |
Mr = 536.41 | Z = 4 |
Monoclinic, P21/c | Cu Kα radiation |
a = 8.5988 (3) Å | µ = 4.82 mm−1 |
b = 13.5524 (5) Å | T = 100 K |
c = 21.1335 (8) Å | 0.43 × 0.38 × 0.24 mm |
β = 93.280 (2)° |
Bruker SMART APEXII CCD diffractometer | 4259 independent reflections |
Absorption correction: numerical (SADABS; Sheldrick, 2004) | 3766 reflections with I > 2σ(I) |
Tmin = 0.229, Tmax = 0.388 | Rint = 0.033 |
26252 measured reflections |
R[F2 > 2σ(F2)] = 0.029 | 0 restraints |
wR(F2) = 0.082 | H-atom parameters constrained |
S = 1.04 | Δρmax = 0.17 e Å−3 |
4259 reflections | Δρmin = −0.31 e Å−3 |
329 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 | ||
Mn1 | 0.00260 (3) | 0.572439 (18) | 0.395095 (12) | 0.03435 (10) | |
O1 | 0.16793 (14) | 0.49020 (9) | 0.42468 (6) | 0.0441 (3) | |
O2 | 0.00908 (13) | 0.65071 (8) | 0.46877 (5) | 0.0385 (3) | |
O3 | −0.17820 (15) | 0.46814 (10) | 0.43826 (6) | 0.0462 (3) | |
H1W | −0.2082 | 0.4929 | 0.4719 | 0.069* | |
H2W | −0.1324 | 0.4183 | 0.4539 | 0.069* | |
O4 | 0.13396 (16) | 0.68020 (10) | 0.34910 (7) | 0.0579 (4) | |
O5 | 0.2768 (2) | 0.61403 (11) | 0.27687 (9) | 0.0759 (5) | |
O6 | 0.38532 (16) | 0.39868 (11) | 0.49052 (8) | 0.0605 (4) | |
O7 | 0.11387 (16) | 0.74947 (10) | 0.56553 (6) | 0.0552 (4) | |
O8 | 0.56714 (18) | 1.04617 (10) | 0.31546 (7) | 0.0569 (4) | |
H8 | 0.6043 | 1.0592 | 0.2805 | 0.085* | |
N1 | −0.03465 (18) | 0.49221 (11) | 0.31755 (7) | 0.0437 (4) | |
N2 | −0.18769 (17) | 0.64264 (11) | 0.36080 (7) | 0.0404 (3) | |
C1 | 0.2130 (2) | 0.40534 (13) | 0.40135 (9) | 0.0434 (4) | |
C2 | 0.3325 (2) | 0.35296 (14) | 0.43583 (10) | 0.0504 (5) | |
C3 | 0.3854 (3) | 0.26389 (16) | 0.41349 (13) | 0.0669 (7) | |
H3A | 0.4667 | 0.2299 | 0.4367 | 0.080* | |
C4 | 0.3210 (3) | 0.22341 (17) | 0.35735 (13) | 0.0716 (7) | |
H4 | 0.3571 | 0.1617 | 0.3428 | 0.086* | |
C5 | 0.2069 (3) | 0.27213 (16) | 0.32360 (12) | 0.0648 (6) | |
H5 | 0.1640 | 0.2442 | 0.2852 | 0.078* | |
C6 | 0.1502 (2) | 0.36359 (14) | 0.34428 (9) | 0.0486 (5) | |
C7 | 0.0319 (3) | 0.41113 (14) | 0.30509 (9) | 0.0503 (5) | |
H7 | 0.0001 | 0.3795 | 0.2664 | 0.060* | |
C8 | −0.1493 (3) | 0.53742 (16) | 0.27184 (9) | 0.0567 (5) | |
H8A | −0.1983 | 0.4862 | 0.2439 | 0.068* | |
H8B | −0.0976 | 0.5861 | 0.2451 | 0.068* | |
C9 | −0.2707 (2) | 0.58766 (16) | 0.30925 (9) | 0.0528 (5) | |
H9A | −0.3339 | 0.6332 | 0.2817 | 0.063* | |
H9B | −0.3410 | 0.5381 | 0.3268 | 0.063* | |
C10 | −0.2353 (2) | 0.72627 (14) | 0.37993 (9) | 0.0438 (4) | |
H10 | −0.3219 | 0.7552 | 0.3569 | 0.053* | |
C11 | −0.1684 (2) | 0.77993 (13) | 0.43343 (9) | 0.0418 (4) | |
C12 | −0.2294 (3) | 0.87431 (15) | 0.44637 (11) | 0.0568 (5) | |
H12 | −0.3083 | 0.9018 | 0.4184 | 0.068* | |
C13 | −0.1765 (3) | 0.92618 (15) | 0.49826 (12) | 0.0620 (6) | |
H13 | −0.2186 | 0.9895 | 0.5063 | 0.074* | |
C14 | −0.0609 (3) | 0.88696 (15) | 0.53968 (10) | 0.0554 (5) | |
H14 | −0.0246 | 0.9235 | 0.5759 | 0.067* | |
C15 | 0.0010 (2) | 0.79578 (13) | 0.52835 (9) | 0.0431 (4) | |
C16 | −0.05175 (19) | 0.73910 (12) | 0.47489 (8) | 0.0363 (4) | |
C17 | 0.5190 (2) | 0.35790 (19) | 0.52483 (14) | 0.0759 (8) | |
H17A | 0.4945 | 0.2914 | 0.5395 | 0.114* | |
H17B | 0.5477 | 0.3999 | 0.5614 | 0.114* | |
H17C | 0.6063 | 0.3546 | 0.4970 | 0.114* | |
C18 | 0.1804 (3) | 0.8014 (2) | 0.61902 (12) | 0.0785 (7) | |
H18A | 0.2285 | 0.8625 | 0.6049 | 0.118* | |
H18B | 0.2598 | 0.7601 | 0.6411 | 0.118* | |
H18C | 0.0988 | 0.8173 | 0.6479 | 0.118* | |
C19 | 0.2422 (2) | 0.68274 (13) | 0.31186 (9) | 0.0416 (4) | |
C20 | 0.33056 (19) | 0.77892 (12) | 0.31102 (8) | 0.0363 (4) | |
C21 | 0.3153 (2) | 0.84743 (13) | 0.35946 (8) | 0.0418 (4) | |
H21 | 0.2480 | 0.8334 | 0.3924 | 0.050* | |
C22 | 0.3962 (2) | 0.93532 (14) | 0.36026 (9) | 0.0443 (4) | |
H22 | 0.3863 | 0.9805 | 0.3942 | 0.053* | |
C23 | 0.4923 (2) | 0.95794 (13) | 0.31152 (9) | 0.0404 (4) | |
C24 | 0.5079 (2) | 0.89109 (13) | 0.26270 (8) | 0.0408 (4) | |
H24 | 0.5728 | 0.9061 | 0.2291 | 0.049* | |
C25 | 0.4281 (2) | 0.80217 (13) | 0.26320 (8) | 0.0392 (4) | |
H25 | 0.4407 | 0.7561 | 0.2300 | 0.047* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Mn1 | 0.03304 (16) | 0.03382 (16) | 0.03536 (16) | −0.00183 (11) | −0.00532 (11) | −0.00038 (11) |
O1 | 0.0386 (7) | 0.0387 (7) | 0.0539 (7) | 0.0051 (5) | −0.0062 (6) | −0.0046 (6) |
O2 | 0.0397 (6) | 0.0372 (6) | 0.0374 (6) | 0.0035 (5) | −0.0080 (5) | −0.0011 (5) |
O3 | 0.0461 (7) | 0.0452 (7) | 0.0467 (7) | −0.0033 (6) | −0.0027 (6) | 0.0103 (6) |
O4 | 0.0593 (9) | 0.0451 (7) | 0.0719 (9) | −0.0112 (6) | 0.0266 (7) | −0.0016 (7) |
O5 | 0.0862 (12) | 0.0505 (9) | 0.0951 (12) | −0.0120 (8) | 0.0399 (10) | −0.0203 (9) |
O6 | 0.0405 (8) | 0.0569 (8) | 0.0830 (11) | 0.0106 (6) | −0.0075 (7) | 0.0137 (8) |
O7 | 0.0569 (8) | 0.0565 (8) | 0.0497 (7) | −0.0026 (7) | −0.0175 (6) | −0.0100 (6) |
O8 | 0.0603 (9) | 0.0460 (7) | 0.0651 (9) | −0.0143 (7) | 0.0111 (7) | −0.0042 (7) |
N1 | 0.0502 (9) | 0.0412 (8) | 0.0392 (8) | −0.0086 (7) | −0.0021 (7) | −0.0021 (7) |
N2 | 0.0379 (8) | 0.0449 (9) | 0.0371 (7) | −0.0047 (6) | −0.0085 (6) | 0.0066 (6) |
C1 | 0.0378 (9) | 0.0355 (9) | 0.0581 (11) | 0.0001 (7) | 0.0132 (8) | 0.0047 (8) |
C2 | 0.0412 (10) | 0.0435 (10) | 0.0679 (13) | 0.0014 (8) | 0.0146 (9) | 0.0104 (9) |
C3 | 0.0585 (13) | 0.0509 (12) | 0.0944 (18) | 0.0176 (10) | 0.0311 (13) | 0.0254 (13) |
C4 | 0.0944 (18) | 0.0417 (12) | 0.0826 (17) | 0.0110 (12) | 0.0400 (15) | 0.0024 (12) |
C5 | 0.0864 (17) | 0.0414 (11) | 0.0694 (14) | −0.0010 (11) | 0.0304 (13) | −0.0017 (10) |
C6 | 0.0570 (12) | 0.0366 (9) | 0.0541 (11) | −0.0043 (8) | 0.0186 (9) | −0.0033 (8) |
C7 | 0.0621 (13) | 0.0444 (11) | 0.0449 (10) | −0.0118 (9) | 0.0073 (9) | −0.0065 (8) |
C8 | 0.0667 (14) | 0.0609 (12) | 0.0401 (10) | −0.0046 (11) | −0.0168 (10) | −0.0015 (9) |
C9 | 0.0493 (12) | 0.0608 (12) | 0.0458 (10) | −0.0047 (9) | −0.0201 (9) | 0.0019 (9) |
C10 | 0.0368 (9) | 0.0456 (10) | 0.0481 (10) | 0.0038 (8) | −0.0059 (8) | 0.0119 (8) |
C11 | 0.0382 (9) | 0.0382 (9) | 0.0487 (10) | 0.0010 (7) | −0.0006 (8) | 0.0060 (8) |
C12 | 0.0538 (12) | 0.0460 (11) | 0.0704 (14) | 0.0108 (9) | 0.0013 (10) | 0.0096 (10) |
C13 | 0.0704 (15) | 0.0392 (11) | 0.0774 (15) | 0.0079 (10) | 0.0126 (12) | −0.0028 (10) |
C14 | 0.0654 (13) | 0.0431 (11) | 0.0581 (12) | −0.0072 (10) | 0.0063 (10) | −0.0081 (10) |
C15 | 0.0423 (10) | 0.0422 (10) | 0.0448 (10) | −0.0070 (8) | 0.0008 (8) | −0.0009 (8) |
C16 | 0.0333 (8) | 0.0353 (9) | 0.0404 (9) | −0.0037 (7) | 0.0031 (7) | 0.0027 (7) |
C17 | 0.0381 (12) | 0.0765 (16) | 0.112 (2) | 0.0059 (10) | −0.0078 (12) | 0.0371 (15) |
C18 | 0.0805 (17) | 0.0893 (18) | 0.0625 (14) | −0.0134 (14) | −0.0233 (13) | −0.0233 (13) |
C19 | 0.0412 (10) | 0.0394 (9) | 0.0440 (10) | 0.0015 (8) | 0.0007 (8) | 0.0025 (8) |
C20 | 0.0319 (8) | 0.0391 (9) | 0.0374 (9) | 0.0023 (7) | −0.0010 (7) | 0.0045 (7) |
C21 | 0.0402 (10) | 0.0481 (10) | 0.0374 (9) | −0.0012 (8) | 0.0049 (7) | 0.0027 (8) |
C22 | 0.0486 (11) | 0.0456 (10) | 0.0387 (9) | −0.0015 (8) | 0.0012 (8) | −0.0048 (8) |
C23 | 0.0354 (9) | 0.0396 (9) | 0.0455 (10) | −0.0014 (7) | −0.0028 (8) | 0.0044 (8) |
C24 | 0.0346 (9) | 0.0463 (10) | 0.0420 (9) | 0.0024 (8) | 0.0055 (7) | 0.0066 (8) |
C25 | 0.0383 (9) | 0.0406 (9) | 0.0386 (9) | 0.0033 (7) | 0.0031 (7) | −0.0004 (7) |
Mn1—O2 | 1.8821 (11) | C8—C9 | 1.507 (3) |
Mn1—O1 | 1.8848 (12) | C8—H8A | 0.9900 |
Mn1—N1 | 1.9774 (15) | C8—H8B | 0.9900 |
Mn1—N2 | 1.9930 (14) | C9—H9A | 0.9900 |
Mn1—O4 | 2.1164 (13) | C9—H9B | 0.9900 |
Mn1—O3 | 2.3257 (12) | C10—C11 | 1.437 (3) |
O1—C1 | 1.318 (2) | C10—H10 | 0.9500 |
O2—C16 | 1.316 (2) | C11—C16 | 1.407 (2) |
O3—H1W | 0.8400 | C11—C12 | 1.415 (3) |
O3—H2W | 0.8401 | C12—C13 | 1.359 (3) |
O4—C19 | 1.253 (2) | C12—H12 | 0.9500 |
O5—C19 | 1.236 (2) | C13—C14 | 1.392 (3) |
O6—C2 | 1.366 (3) | C13—H13 | 0.9500 |
O6—C17 | 1.435 (2) | C14—C15 | 1.372 (3) |
O7—C15 | 1.366 (2) | C14—H14 | 0.9500 |
O7—C18 | 1.424 (2) | C15—C16 | 1.419 (2) |
O8—C23 | 1.358 (2) | C17—H17A | 0.9800 |
O8—H8 | 0.8400 | C17—H17B | 0.9800 |
N1—C7 | 1.274 (2) | C17—H17C | 0.9800 |
N1—C8 | 1.474 (2) | C18—H18A | 0.9800 |
N2—C10 | 1.278 (2) | C18—H18B | 0.9800 |
N2—C9 | 1.470 (2) | C18—H18C | 0.9800 |
C1—C6 | 1.411 (3) | C19—C20 | 1.509 (2) |
C1—C2 | 1.416 (3) | C20—C25 | 1.386 (2) |
C2—C3 | 1.383 (3) | C20—C21 | 1.394 (2) |
C3—C4 | 1.393 (4) | C21—C22 | 1.379 (3) |
C3—H3A | 0.9500 | C21—H21 | 0.9500 |
C4—C5 | 1.352 (4) | C22—C23 | 1.391 (3) |
C4—H4 | 0.9500 | C22—H22 | 0.9500 |
C5—C6 | 1.410 (3) | C23—C24 | 1.385 (3) |
C5—H5 | 0.9500 | C24—C25 | 1.387 (3) |
C6—C7 | 1.428 (3) | C24—H24 | 0.9500 |
C7—H7 | 0.9500 | C25—H25 | 0.9500 |
O2—Mn1—O1 | 94.17 (5) | C8—C9—H9A | 110.3 |
O2—Mn1—N1 | 172.37 (6) | N2—C9—H9B | 110.3 |
O1—Mn1—N1 | 91.90 (6) | C8—C9—H9B | 110.3 |
O2—Mn1—N2 | 90.95 (6) | H9A—C9—H9B | 108.5 |
O1—Mn1—N2 | 172.26 (6) | N2—C10—C11 | 125.20 (16) |
N1—Mn1—N2 | 82.56 (6) | N2—C10—H10 | 117.4 |
O2—Mn1—O4 | 89.99 (5) | C11—C10—H10 | 117.4 |
O1—Mn1—O4 | 98.52 (6) | C16—C11—C12 | 119.61 (18) |
N1—Mn1—O4 | 93.68 (6) | C16—C11—C10 | 122.03 (16) |
N2—Mn1—O4 | 87.26 (6) | C12—C11—C10 | 118.25 (17) |
O2—Mn1—O3 | 90.40 (5) | C13—C12—C11 | 120.9 (2) |
O1—Mn1—O3 | 91.09 (5) | C13—C12—H12 | 119.6 |
N1—Mn1—O3 | 84.87 (6) | C11—C12—H12 | 119.6 |
N2—Mn1—O3 | 83.08 (5) | C12—C13—C14 | 120.26 (19) |
O4—Mn1—O3 | 170.33 (5) | C12—C13—H13 | 119.9 |
C1—O1—Mn1 | 128.61 (12) | C14—C13—H13 | 119.9 |
C16—O2—Mn1 | 126.94 (10) | C15—C14—C13 | 120.29 (19) |
Mn1—O3—H1W | 109.5 | C15—C14—H14 | 119.9 |
Mn1—O3—H2W | 109.5 | C13—C14—H14 | 119.9 |
H1W—O3—H2W | 98.5 | O7—C15—C14 | 125.68 (17) |
C19—O4—Mn1 | 137.94 (13) | O7—C15—C16 | 113.16 (15) |
C2—O6—C17 | 118.09 (18) | C14—C15—C16 | 121.16 (18) |
C15—O7—C18 | 118.02 (17) | O2—C16—C11 | 124.73 (15) |
C23—O8—H8 | 109.5 | O2—C16—C15 | 117.41 (15) |
C7—N1—C8 | 120.99 (16) | C11—C16—C15 | 117.83 (16) |
C7—N1—Mn1 | 126.33 (14) | O6—C17—H17A | 109.5 |
C8—N1—Mn1 | 112.66 (12) | O6—C17—H17B | 109.5 |
C10—N2—C9 | 122.20 (16) | H17A—C17—H17B | 109.5 |
C10—N2—Mn1 | 125.41 (12) | O6—C17—H17C | 109.5 |
C9—N2—Mn1 | 112.39 (12) | H17A—C17—H17C | 109.5 |
O1—C1—C6 | 124.27 (17) | H17B—C17—H17C | 109.5 |
O1—C1—C2 | 117.72 (18) | O7—C18—H18A | 109.5 |
C6—C1—C2 | 118.01 (18) | O7—C18—H18B | 109.5 |
O6—C2—C3 | 125.8 (2) | H18A—C18—H18B | 109.5 |
O6—C2—C1 | 113.84 (17) | O7—C18—H18C | 109.5 |
C3—C2—C1 | 120.4 (2) | H18A—C18—H18C | 109.5 |
C2—C3—C4 | 120.8 (2) | H18B—C18—H18C | 109.5 |
C2—C3—H3A | 119.6 | O5—C19—O4 | 124.60 (18) |
C4—C3—H3A | 119.6 | O5—C19—C20 | 120.33 (16) |
C5—C4—C3 | 119.9 (2) | O4—C19—C20 | 115.06 (16) |
C5—C4—H4 | 120.0 | C25—C20—C21 | 118.07 (16) |
C3—C4—H4 | 120.0 | C25—C20—C19 | 122.08 (16) |
C4—C5—C6 | 121.3 (2) | C21—C20—C19 | 119.86 (15) |
C4—C5—H5 | 119.4 | C22—C21—C20 | 121.03 (16) |
C6—C5—H5 | 119.4 | C22—C21—H21 | 119.5 |
C5—C6—C1 | 119.7 (2) | C20—C21—H21 | 119.5 |
C5—C6—C7 | 117.6 (2) | C21—C22—C23 | 120.13 (17) |
C1—C6—C7 | 122.67 (17) | C21—C22—H22 | 119.9 |
N1—C7—C6 | 125.66 (18) | C23—C22—H22 | 119.9 |
N1—C7—H7 | 117.2 | O8—C23—C24 | 123.75 (16) |
C6—C7—H7 | 117.2 | O8—C23—C22 | 116.63 (17) |
N1—C8—C9 | 107.53 (16) | C24—C23—C22 | 119.62 (16) |
N1—C8—H8A | 110.2 | C23—C24—C25 | 119.58 (16) |
C9—C8—H8A | 110.2 | C23—C24—H24 | 120.2 |
N1—C8—H8B | 110.2 | C25—C24—H24 | 120.2 |
C9—C8—H8B | 110.2 | C20—C25—C24 | 121.55 (16) |
H8A—C8—H8B | 108.5 | C20—C25—H25 | 119.2 |
N2—C9—C8 | 107.24 (16) | C24—C25—H25 | 119.2 |
N2—C9—H9A | 110.3 | ||
O2—Mn1—O1—C1 | 167.31 (14) | Mn1—N1—C7—C6 | −1.8 (3) |
N1—Mn1—O1—C1 | −8.07 (15) | C5—C6—C7—N1 | 177.95 (19) |
O4—Mn1—O1—C1 | −102.08 (15) | C1—C6—C7—N1 | −3.2 (3) |
O3—Mn1—O1—C1 | 76.83 (14) | C7—N1—C8—C9 | 145.79 (18) |
O1—Mn1—O2—C16 | 162.00 (13) | Mn1—N1—C8—C9 | −35.67 (19) |
N2—Mn1—O2—C16 | −23.80 (14) | C10—N2—C9—C8 | 143.81 (18) |
O4—Mn1—O2—C16 | 63.46 (14) | Mn1—N2—C9—C8 | −35.78 (19) |
O3—Mn1—O2—C16 | −106.88 (13) | N1—C8—C9—N2 | 45.1 (2) |
O2—Mn1—O4—C19 | 140.4 (2) | C9—N2—C10—C11 | 174.25 (17) |
O1—Mn1—O4—C19 | 46.2 (2) | Mn1—N2—C10—C11 | −6.2 (3) |
N1—Mn1—O4—C19 | −46.3 (2) | N2—C10—C11—C16 | −7.3 (3) |
N2—Mn1—O4—C19 | −128.6 (2) | N2—C10—C11—C12 | 176.57 (18) |
O1—Mn1—N1—C7 | 6.06 (17) | C16—C11—C12—C13 | 0.2 (3) |
N2—Mn1—N1—C7 | −168.52 (17) | C10—C11—C12—C13 | 176.4 (2) |
O4—Mn1—N1—C7 | 104.73 (16) | C11—C12—C13—C14 | 0.0 (3) |
O3—Mn1—N1—C7 | −84.86 (16) | C12—C13—C14—C15 | 0.2 (3) |
O1—Mn1—N1—C8 | −172.39 (13) | C18—O7—C15—C14 | −3.6 (3) |
N2—Mn1—N1—C8 | 13.03 (13) | C18—O7—C15—C16 | 177.24 (18) |
O4—Mn1—N1—C8 | −73.72 (13) | C13—C14—C15—O7 | −179.66 (19) |
O3—Mn1—N1—C8 | 96.69 (13) | C13—C14—C15—C16 | −0.6 (3) |
O2—Mn1—N2—C10 | 17.80 (15) | Mn1—O2—C16—C11 | 18.7 (2) |
N1—Mn1—N2—C10 | −166.21 (16) | Mn1—O2—C16—C15 | −163.44 (12) |
O4—Mn1—N2—C10 | −72.14 (15) | C12—C11—C16—O2 | 177.39 (17) |
O3—Mn1—N2—C10 | 108.09 (15) | C10—C11—C16—O2 | 1.3 (3) |
O2—Mn1—N2—C9 | −162.63 (13) | C12—C11—C16—C15 | −0.5 (3) |
N1—Mn1—N2—C9 | 13.36 (13) | C10—C11—C16—C15 | −176.59 (16) |
O4—Mn1—N2—C9 | 107.43 (13) | O7—C15—C16—O2 | 1.9 (2) |
O3—Mn1—N2—C9 | −72.34 (13) | C14—C15—C16—O2 | −177.34 (17) |
Mn1—O1—C1—C6 | 5.9 (3) | O7—C15—C16—C11 | 179.91 (15) |
Mn1—O1—C1—C2 | −174.29 (12) | C14—C15—C16—C11 | 0.7 (3) |
C17—O6—C2—C3 | 7.6 (3) | Mn1—O4—C19—O5 | 21.3 (3) |
C17—O6—C2—C1 | −172.48 (17) | Mn1—O4—C19—C20 | −159.68 (14) |
O1—C1—C2—O6 | 0.6 (2) | O5—C19—C20—C25 | 14.1 (3) |
C6—C1—C2—O6 | −179.62 (16) | O4—C19—C20—C25 | −164.99 (17) |
O1—C1—C2—C3 | −179.53 (17) | O5—C19—C20—C21 | −165.88 (18) |
C6—C1—C2—C3 | 0.3 (3) | O4—C19—C20—C21 | 15.1 (2) |
O6—C2—C3—C4 | 178.98 (19) | C25—C20—C21—C22 | −0.8 (3) |
C1—C2—C3—C4 | −0.9 (3) | C19—C20—C21—C22 | 179.17 (17) |
C2—C3—C4—C5 | 1.0 (3) | C20—C21—C22—C23 | 1.5 (3) |
C3—C4—C5—C6 | −0.4 (3) | C21—C22—C23—O8 | 179.52 (17) |
C4—C5—C6—C1 | −0.2 (3) | C21—C22—C23—C24 | −0.9 (3) |
C4—C5—C6—C7 | 178.7 (2) | O8—C23—C24—C25 | 179.18 (16) |
O1—C1—C6—C5 | −179.94 (17) | C22—C23—C24—C25 | −0.4 (3) |
C2—C1—C6—C5 | 0.2 (3) | C21—C20—C25—C24 | −0.5 (3) |
O1—C1—C6—C7 | 1.3 (3) | C19—C20—C25—C24 | 179.53 (15) |
C2—C1—C6—C7 | −178.54 (17) | C23—C24—C25—C20 | 1.1 (3) |
C8—N1—C7—C6 | 176.51 (19) |
D—H···A | D—H | H···A | D···A | D—H···A |
O8—H8···O5i | 0.84 | 1.79 | 2.599 (2) | 161 |
O3—H2W···O7ii | 0.84 | 2.32 | 3.0025 (19) | 139 |
O3—H2W···O2ii | 0.84 | 2.11 | 2.8711 (17) | 150 |
O3—H1W···O6ii | 0.84 | 2.29 | 3.000 (2) | 142 |
O3—H1W···O1ii | 0.84 | 2.21 | 2.9475 (18) | 147 |
Symmetry codes: (i) −x+1, y+1/2, −z+1/2; (ii) −x, −y+1, −z+1. |
Experimental details
Crystal data | |
Chemical formula | [Mn(C18H18N2O4)(C7H5O3)(H2O)] |
Mr | 536.41 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 100 |
a, b, c (Å) | 8.5988 (3), 13.5524 (5), 21.1335 (8) |
β (°) | 93.280 (2) |
V (Å3) | 2458.75 (16) |
Z | 4 |
Radiation type | Cu Kα |
µ (mm−1) | 4.82 |
Crystal size (mm) | 0.43 × 0.38 × 0.24 |
Data collection | |
Diffractometer | Bruker SMART APEXII CCD diffractometer |
Absorption correction | Numerical (SADABS; Sheldrick, 2004) |
Tmin, Tmax | 0.229, 0.388 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 26252, 4259, 3766 |
Rint | 0.033 |
(sin θ/λ)max (Å−1) | 0.597 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.029, 0.082, 1.04 |
No. of reflections | 4259 |
No. of parameters | 329 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.17, −0.31 |
Computer programs: APEX2 (Bruker, 2004), SAINT-Plus (Bruker, 2004), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), ORTEP-3 (Farrugia, 1997) and Mercury (Macrae et al., 2006).
D—H···A | D—H | H···A | D···A | D—H···A |
O8—H8···O5i | 0.84 | 1.79 | 2.599 (2) | 160.5 |
O3—H2W···O7ii | 0.84 | 2.32 | 3.0025 (19) | 138.9 |
O3—H2W···O2ii | 0.84 | 2.11 | 2.8711 (17) | 149.7 |
O3—H1W···O6ii | 0.84 | 2.29 | 3.000 (2) | 142.4 |
O3—H1W···O1ii | 0.84 | 2.21 | 2.9475 (18) | 147.3 |
Symmetry codes: (i) −x+1, y+1/2, −z+1/2; (ii) −x, −y+1, −z+1. |
Acknowledgements
We acknowledge the generosity of the Principal of SN College, Varkala, Kerala, for providing the facilities of the college for this research. We also acknowledge the NSF (CHE-0443345) and the College of William and Mary for the purchase of the X-ray equipment.
References
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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.
Recent advances in the coordination chemistry of manganese have been mainly associated with (i) manganese clusters and the phenomenon of single-molecule magnetism (Christou, 2005) and (ii) its biological importance (Pecoraro, 1992). With its accessible oxidation states ranging from (II) to (V), and a propensity for coordination with N and O donor atoms, manganese exhibits rich redox and structural chemistry in biological systems like the oxygen-evolvingcomplex (OEC) of photosystem II (McEvoy & Brudvig, 2006), superoxide dismutase, catalase, arginase etc. (Yocum & Pecoraro, 1999). We have been interested in inorganic modeling of the active sites of these manganese-containing systems using complexes containing Schiff base and carboxylate ligands. The structural diversity displayed in such complexes has been amply demonstrated in previous reports (Hulme et al., 1997; Zhang & Janiak, 2001; Bermejo et al., 2006). In this paper, we report the crystal structure of a new manganese(III) complex with the Schiff base, m-salen [H2msalen = N,N'-bis(3-methoxysalicylidene)-ethane-1,2-diamine] and 4-hydroxyobenzoate as an ancillary ligand (Figure 1).
The N2O2 donor set of the m-salen ligand holds the manganese(III) ion at the centre of an approximate square plane [Mn(1)-O(1) = 1.8848 (12) Å and Mn(1)-O(2) = 1.8821 (11) Å ;Mn(1)-N(1) = 1.9774 (15) Å and Mn(1)-N(2) = 1.9930 (14) Å]. Jahn-Teller distortion elongate of the axial Mn–Ocarb [Mn(1)-O(4) = 2.1164 (13) Å] and the Mn–Oaq [Mn(1)-O(3) = 2.3257 (12) Å]. H-bonding interactions between the non-coordinated O atom of the carboxylate and the para O-H group of the carboxylate of an adjacent molecule produce chains progressing along a screw (21) axis parallel to the b-axis. Axial H2O ligands and the m-salen ligands of neighboring molecules are involved in multiple H-bond interactions resulting in chains. These two interactions together produce a 2-dimensional sheet structure parallel to the (1 0 3) plane (Figure 2).