metal-organic compounds
[μ-10,21-Dimethyl-3,6,14,17-tetrazatricyclo[17.3.1.18,12]tetracosa-1(23),2,6,8,10,12 (24),13,17,19,21-decaene-23,24-diolato-κ4N3,N6,O23,O24:κ4N14,N17,O23,O24]bis(perchlorato-κO)dimanganese(II)
aKey Laboratory for Green Chemical Processes of the Ministry of Education, Wuhan Institute of Technology, Wuhan 430073, People's Republic of China, and bState Key Laboratory of Coordination Chemistry, Coordination Chemistry Institute, Nanjing University, Nanjing 210093, People's Republic of China
*Correspondence e-mail: zhiqpan@163.com
In the centrosymmetric and dinuclear title complex, [Mn2(C22H22N4O2)(ClO4)2], the two Mn atoms are bridged by two phenolate O atoms of the N4O2 macrocycle with an Mn⋯Mn distance of 2.9228 (11) Å. The distorted square–pyramidal N2O3 coordination geometry is completed by an O atom derived from a perchlorate anion.
Related literature
For related literature, see: Bai et al. (2007); Venegas-Yazigi et al. (2006); Jong et al. (2006); Ki et al. (2006); Tei et al. (2001); Brooker & Croucher (1997); Chattopadhyay et al. (2007). For synthesis, see: Taniguchi (1984).
Experimental
Crystal data
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Data collection: SMART (Bruker, 2000); cell SAINT (Bruker, 2000); data reduction: SAINT; program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL; molecular graphics: SHELXTL; software used to prepare material for publication: SHELXTL.
Supporting information
10.1107/S1600536808035551/tk2317sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536808035551/tk2317Isup2.hkl
2,6-Di-formyl-4-methylphenol was prepared according to the literature method (Taniguchi, 1984). Ethylenediamine (0.8 mmol, 0.048 g) in absolute methanol (10 ml) was added to a methanol solution (10 ml) containing 2,6-di-formyl-4-methylphenol (0.8 mmol, 0.13 g). The solution was stirred vigorously for 3 h in a ice-bath. Afterwards, a methanol solution (5 ml) of Mn(OAc)2.4H2O (0.4 mmol, 0.1 g) was added dropwise over a period of 1 h at room temperature. The mixture was stirred for a further 12 h at ambient temperature. Finally, Mn(ClO4)2.6H2O (0.4 mmol, 0.15 g) dissolved in methanol (5 ml) was added to the mixture and stirred for 8 h at room temperature. The dark-red block-shaped crystals suitable for X-ray diffraction precipitated by slow
over a period of one month.All C-bound H atoms were placed in calculated positions with 0.93–0.97 Å, and included in the
in the riding-model approximation, with U(H) set to 1.2–1.5Ueq(C).Data collection: SMART (Bruker, 2000); cell
SAINT (Bruker, 2000); data reduction: SAINT (Bruker, 2000); program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).Fig. 1. A view of (I), showing the labeling of the non-H atoms and 30% probability ellipsoids. H atoms have been omitted for clarity. |
[Mn2(C22H22N4O2)(ClO4)2] | Z = 1 |
Mr = 683.22 | F(000) = 346 |
Triclinic, P1 | Dx = 1.796 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 8.3129 (10) Å | Cell parameters from 1608 reflections |
b = 8.3759 (11) Å | θ = 2.5–25.7° |
c = 9.9712 (12) Å | µ = 1.28 mm−1 |
α = 81.484 (2)° | T = 291 K |
β = 68.520 (3)° | Block, red |
γ = 78.838 (2)° | 0.31 × 0.21 × 0.15 mm |
V = 631.56 (14) Å3 |
Bruker SMART APEX CCD diffractometer | 2439 independent reflections |
Radiation source: sealed tube | 1701 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.029 |
ϕ and ω scans | θmax = 26.0°, θmin = 2.2° |
Absorption correction: multi-scan (SADABS; Bruker, 2000) | h = −6→10 |
Tmin = 0.73, Tmax = 0.83 | k = −9→10 |
3663 measured reflections | l = −12→12 |
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)] = 0.052 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.118 | H-atom parameters constrained |
S = 0.99 | w = 1/[σ2(Fo2) + (0.0643P)2] where P = (Fo2 + 2Fc2)/3 |
2439 reflections | (Δ/σ)max < 0.001 |
182 parameters | Δρmax = 0.56 e Å−3 |
0 restraints | Δρmin = −0.58 e Å−3 |
[Mn2(C22H22N4O2)(ClO4)2] | γ = 78.838 (2)° |
Mr = 683.22 | V = 631.56 (14) Å3 |
Triclinic, P1 | Z = 1 |
a = 8.3129 (10) Å | Mo Kα radiation |
b = 8.3759 (11) Å | µ = 1.28 mm−1 |
c = 9.9712 (12) Å | T = 291 K |
α = 81.484 (2)° | 0.31 × 0.21 × 0.15 mm |
β = 68.520 (3)° |
Bruker SMART APEX CCD diffractometer | 2439 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2000) | 1701 reflections with I > 2σ(I) |
Tmin = 0.73, Tmax = 0.83 | Rint = 0.029 |
3663 measured reflections |
R[F2 > 2σ(F2)] = 0.052 | 0 restraints |
wR(F2) = 0.118 | H-atom parameters constrained |
S = 0.99 | Δρmax = 0.56 e Å−3 |
2439 reflections | Δρmin = −0.58 e Å−3 |
182 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 | ||
C1 | 0.7059 (6) | 0.6449 (6) | 0.4901 (5) | 0.0464 (10) | |
C2 | 0.5527 (5) | 0.6225 (5) | 0.6085 (5) | 0.0419 (9) | |
C3 | 0.3922 (6) | 0.7068 (5) | 0.6049 (4) | 0.0400 (9) | |
H3 | 0.2908 | 0.6855 | 0.6806 | 0.048* | |
C4 | 0.3786 (6) | 0.8204 (5) | 0.4932 (5) | 0.0458 (10) | |
C5 | 0.5336 (6) | 0.8403 (6) | 0.3738 (5) | 0.0475 (11) | |
H5 | 0.5278 | 0.9107 | 0.2938 | 0.057* | |
C6 | 0.6944 (6) | 0.7556 (5) | 0.3752 (5) | 0.0413 (9) | |
C7 | 0.5468 (6) | 0.5007 (6) | 0.7344 (5) | 0.0476 (10) | |
H7 | 0.4369 | 0.4830 | 0.7991 | 0.057* | |
C8 | 0.8486 (5) | 0.7881 (5) | 0.2457 (4) | 0.0335 (8) | |
H8 | 0.8285 | 0.8662 | 0.1746 | 0.040* | |
C9 | 0.8484 (6) | 0.2595 (5) | 0.9110 (5) | 0.0494 (11) | |
H9A | 0.8402 | 0.3379 | 0.9766 | 0.059* | |
H9B | 0.8668 | 0.1507 | 0.9574 | 0.059* | |
C10 | 0.6753 (5) | 0.2848 (5) | 0.8787 (4) | 0.0425 (10) | |
H10A | 0.6616 | 0.1845 | 0.8492 | 0.051* | |
H10B | 0.5766 | 0.3124 | 0.9655 | 0.051* | |
C11 | 0.2057 (6) | 0.9079 (6) | 0.4876 (5) | 0.0494 (11) | |
H11A | 0.1131 | 0.8652 | 0.5667 | 0.074* | |
H11B | 0.1953 | 0.8923 | 0.3978 | 0.074* | |
H11C | 0.1980 | 1.0224 | 0.4946 | 0.074* | |
Cl1 | 0.82655 (13) | 0.75907 (13) | 0.86577 (11) | 0.0428 (3) | |
Mn1 | 0.91488 (7) | 0.43436 (7) | 0.64841 (6) | 0.0349 (2) | |
N1 | 0.6784 (5) | 0.4187 (4) | 0.7614 (4) | 0.0475 (9) | |
N2 | 0.9957 (5) | 0.2803 (4) | 0.7770 (4) | 0.0469 (9) | |
O1 | 0.8573 (4) | 0.5649 (4) | 0.4947 (3) | 0.0449 (7) | |
O2 | 0.9409 (4) | 0.6619 (4) | 0.7542 (3) | 0.0523 (8) | |
O3 | 0.9142 (4) | 0.8814 (4) | 0.8771 (3) | 0.0457 (7) | |
O4 | 0.7776 (4) | 0.6558 (4) | 0.9924 (3) | 0.0476 (7) | |
O5 | 0.6808 (4) | 0.8267 (4) | 0.8254 (3) | 0.0551 (9) |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.036 (2) | 0.059 (3) | 0.043 (2) | 0.0015 (19) | −0.0149 (18) | −0.010 (2) |
C2 | 0.037 (2) | 0.039 (2) | 0.049 (2) | −0.0074 (17) | −0.0145 (19) | −0.0029 (18) |
C3 | 0.038 (2) | 0.044 (2) | 0.042 (2) | −0.0069 (17) | −0.0163 (17) | −0.0121 (17) |
C4 | 0.052 (3) | 0.041 (2) | 0.050 (2) | 0.0047 (19) | −0.028 (2) | −0.0122 (19) |
C5 | 0.038 (2) | 0.067 (3) | 0.041 (2) | 0.005 (2) | −0.0200 (19) | −0.014 (2) |
C6 | 0.043 (2) | 0.0331 (19) | 0.045 (2) | −0.0020 (17) | −0.0115 (18) | −0.0112 (17) |
C7 | 0.039 (2) | 0.055 (3) | 0.045 (2) | −0.012 (2) | −0.0046 (19) | −0.010 (2) |
C8 | 0.042 (2) | 0.0357 (19) | 0.0332 (19) | −0.0088 (16) | −0.0277 (17) | 0.0084 (15) |
C9 | 0.036 (2) | 0.042 (2) | 0.058 (3) | 0.0016 (18) | −0.009 (2) | 0.008 (2) |
C10 | 0.043 (2) | 0.049 (3) | 0.039 (2) | −0.0161 (19) | −0.0178 (19) | 0.0065 (18) |
C11 | 0.048 (3) | 0.055 (3) | 0.044 (2) | 0.002 (2) | −0.016 (2) | −0.010 (2) |
Cl1 | 0.0484 (6) | 0.0439 (5) | 0.0378 (5) | −0.0173 (4) | −0.0121 (4) | −0.0020 (4) |
Mn1 | 0.0334 (3) | 0.0348 (3) | 0.0293 (3) | −0.0010 (2) | −0.0074 (2) | 0.0043 (2) |
N1 | 0.042 (2) | 0.044 (2) | 0.051 (2) | −0.0087 (17) | −0.0114 (17) | 0.0014 (16) |
N2 | 0.049 (2) | 0.045 (2) | 0.0361 (18) | 0.0054 (17) | −0.0119 (16) | 0.0038 (16) |
O1 | 0.0312 (14) | 0.0499 (17) | 0.0430 (16) | 0.0020 (12) | −0.0097 (12) | 0.0100 (13) |
O2 | 0.0483 (18) | 0.0482 (17) | 0.0523 (18) | −0.0217 (14) | 0.0020 (15) | −0.0113 (14) |
O3 | 0.0583 (18) | 0.0484 (17) | 0.0359 (15) | −0.0247 (14) | −0.0123 (13) | −0.0094 (12) |
O4 | 0.0412 (16) | 0.0527 (18) | 0.0475 (17) | −0.0193 (13) | −0.0142 (13) | 0.0133 (14) |
O5 | 0.0497 (18) | 0.0483 (18) | 0.0445 (17) | 0.0108 (14) | −0.0063 (14) | 0.0157 (14) |
C1—O1 | 1.321 (5) | C9—H9B | 0.9700 |
C1—C6 | 1.383 (6) | C10—N1 | 1.492 (5) |
C1—C2 | 1.406 (6) | C10—H10A | 0.9700 |
C2—C3 | 1.393 (6) | C10—H10B | 0.9700 |
C2—C7 | 1.488 (6) | C11—H11A | 0.9600 |
C3—C4 | 1.376 (6) | C11—H11B | 0.9600 |
C3—H3 | 0.9300 | C11—H11C | 0.9600 |
C4—C5 | 1.417 (6) | Cl1—O4 | 1.394 (3) |
C4—C11 | 1.499 (6) | Cl1—O5 | 1.405 (3) |
C5—C6 | 1.390 (6) | Cl1—O3 | 1.406 (3) |
C5—H5 | 0.9300 | Cl1—O2 | 1.413 (3) |
C6—C8 | 1.485 (6) | Mn1—N2 | 1.888 (3) |
C7—N1 | 1.269 (6) | Mn1—N1 | 1.893 (4) |
C7—H7 | 0.9300 | Mn1—O1 | 1.900 (3) |
C8—N2i | 1.262 (5) | Mn1—O1i | 1.909 (3) |
C8—H8 | 0.9300 | Mn1—O2 | 2.391 (3) |
C9—N2 | 1.460 (5) | Mn1—Mn1i | 2.9228 (11) |
C9—C10 | 1.556 (6) | N2—C8i | 1.262 (5) |
C9—H9A | 0.9700 | O1—Mn1i | 1.909 (3) |
O1—C1—C6 | 121.9 (4) | C4—C11—H11B | 109.5 |
O1—C1—C2 | 119.0 (4) | H11A—C11—H11B | 109.5 |
C6—C1—C2 | 119.0 (4) | C4—C11—H11C | 109.5 |
C3—C2—C1 | 119.4 (4) | H11A—C11—H11C | 109.5 |
C3—C2—C7 | 116.3 (4) | H11B—C11—H11C | 109.5 |
C1—C2—C7 | 124.0 (4) | O4—Cl1—O5 | 110.61 (18) |
C4—C3—C2 | 122.3 (4) | O4—Cl1—O3 | 112.37 (19) |
C4—C3—H3 | 118.8 | O5—Cl1—O3 | 111.3 (2) |
C2—C3—H3 | 118.8 | O4—Cl1—O2 | 107.3 (2) |
C3—C4—C5 | 117.5 (4) | O5—Cl1—O2 | 106.4 (2) |
C3—C4—C11 | 122.3 (4) | O3—Cl1—O2 | 108.58 (18) |
C5—C4—C11 | 119.9 (4) | N2—Mn1—N1 | 91.90 (16) |
C6—C5—C4 | 120.6 (4) | N2—Mn1—O1 | 170.28 (14) |
C6—C5—H5 | 119.7 | N1—Mn1—O1 | 93.45 (14) |
C4—C5—H5 | 119.7 | N2—Mn1—O1i | 93.60 (13) |
C1—C6—C5 | 120.9 (4) | N1—Mn1—O1i | 168.66 (16) |
C1—C6—C8 | 123.0 (4) | O1—Mn1—O1i | 79.78 (13) |
C5—C6—C8 | 116.1 (4) | N2—Mn1—O2 | 93.10 (15) |
N1—C7—C2 | 125.8 (4) | N1—Mn1—O2 | 97.47 (14) |
N1—C7—H7 | 117.1 | O1—Mn1—O2 | 94.23 (13) |
C2—C7—H7 | 117.1 | O1i—Mn1—O2 | 92.12 (12) |
N2i—C8—C6 | 126.1 (3) | N2—Mn1—Mn1i | 132.98 (11) |
N2i—C8—H8 | 117.0 | N1—Mn1—Mn1i | 132.81 (12) |
C6—C8—H8 | 117.0 | O1—Mn1—Mn1i | 40.01 (8) |
N2—C9—C10 | 110.2 (4) | O1i—Mn1—Mn1i | 39.77 (8) |
N2—C9—H9A | 109.6 | O2—Mn1—Mn1i | 94.14 (8) |
C10—C9—H9A | 109.6 | C7—N1—C10 | 126.4 (4) |
N2—C9—H9B | 109.6 | C7—N1—Mn1 | 125.2 (3) |
C10—C9—H9B | 109.6 | C10—N1—Mn1 | 108.2 (3) |
H9A—C9—H9B | 108.1 | C8i—N2—C9 | 125.4 (3) |
N1—C10—C9 | 109.9 (3) | C8i—N2—Mn1 | 126.2 (3) |
N1—C10—H10A | 109.7 | C9—N2—Mn1 | 108.3 (3) |
C9—C10—H10A | 109.7 | C1—O1—Mn1 | 130.6 (3) |
N1—C10—H10B | 109.7 | C1—O1—Mn1i | 129.0 (3) |
C9—C10—H10B | 109.7 | Mn1—O1—Mn1i | 100.22 (13) |
H10A—C10—H10B | 108.2 | Cl1—O2—Mn1 | 134.41 (17) |
C4—C11—H11A | 109.5 |
Symmetry code: (i) −x+2, −y+1, −z+1. |
Experimental details
Crystal data | |
Chemical formula | [Mn2(C22H22N4O2)(ClO4)2] |
Mr | 683.22 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 291 |
a, b, c (Å) | 8.3129 (10), 8.3759 (11), 9.9712 (12) |
α, β, γ (°) | 81.484 (2), 68.520 (3), 78.838 (2) |
V (Å3) | 631.56 (14) |
Z | 1 |
Radiation type | Mo Kα |
µ (mm−1) | 1.28 |
Crystal size (mm) | 0.31 × 0.21 × 0.15 |
Data collection | |
Diffractometer | Bruker SMART APEX CCD diffractometer |
Absorption correction | Multi-scan (SADABS; Bruker, 2000) |
Tmin, Tmax | 0.73, 0.83 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 3663, 2439, 1701 |
Rint | 0.029 |
(sin θ/λ)max (Å−1) | 0.617 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.052, 0.118, 0.99 |
No. of reflections | 2439 |
No. of parameters | 182 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.56, −0.58 |
Computer programs: SMART (Bruker, 2000), SAINT (Bruker, 2000), SHELXTL (Sheldrick, 2008).
Acknowledgements
The authors thank the National Science Foundation of China (grant No. 20271039).
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.
Schiff base macrocyclic complexes, derived from the cyclocondensation of 2,6-di-formyl-4-phenol and alkylenediamine in the presence of metal ions, have been extensively studied (Ki et al., 2006; Brooker & Croucher, 1997). The properties of the complexes vary with the differences in the macrocyclic structures and in the nature of the metal ions (Tei et al., 2001; Jong et al., 2006; Venegas-Yazigi et al., 2006). Although the same macrocyclic ligand featured in the title complex, (I), exists in the literature (Bai et al., 2007; Chattopadhyay et al., 2007), the dinuclear Mn(II) complex is novel; the structure is reported herein.
The dinuclear and centrosymmetric structure of (I), Fig. 1, is constructed about a Mn2O2 core. The macrocyclic ligand is hexadentate forming an N4O2 donor set. The Mn ion is coordinated by two endogenous phenolic-O atoms and two azomethine-N atoms that form an approximately square planar geometry. The distorted square pyramidal geometry is completed by a weakly coordinated O atom derived from the perchlorate anion, 2.390 (3) Å. The latter distance is greater than the range of the other Mn-(donor atom) distances, i.e. 1.888 (3) to 1.909 (3) Å. The Mn—Mn distance is 2.9228 (11) Å.