metal-organic compounds
(μ-2,2′-Bipyrimidine-κ4N1,N1′:N3,N3′)bis[triaqua(sulfato-κO)manganese(II)]
aSchool of Applied Chemical Engineering, The Research Institute of Catalysis, Chonnam National University, Gwangju 500-757, Republic of Korea
*Correspondence e-mail: hakwang@chonnam.ac.kr
The title complex, [Mn2(SO4)2(C8H6N4)(H2O)6], is the second monoclinic polymorph [De Munno et al. (1995). Inorg. Chem. 34, 408–411; Hong et al. (1996). Polyhedron, 15, 447–452]. The contains two crystallographically independent half-molecules of the binuclear MnII complex; an inversion centre is located at the centroid of each complex. The two MnII atoms in each complex molecules are bridged by a bis-chelating 2,2′-bipyrimidine (bpym) ligand and each MnII atom is six-coordinated in a considerably distorted octahedral environment defined by two N atoms of the bridging bpym ligand and four O atoms from one sulfato anionic ligand and three water molecules. In the crystal, the complex molecules are linked by O—H⋯O hydrogen bonds between the water and sulfato ligands, forming a three-dimensional network.
Related literature
For the et al. (1995); Hong et al. (1996). For the synthesis and of [Mn2(H2O)8(bpym)](SO4)2·2H2O, see: Ha (2011).
of the title complex in the same but with different cell parameters, see: De MunnoExperimental
Crystal data
|
Refinement
|
|
Data collection: SMART (Bruker, 2000); cell SAINT (Bruker, 2000); data reduction: SAINT; 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 PLATON (Spek, 2009); software used to prepare material for publication: SHELXL97.
Supporting information
https://doi.org/10.1107/S160053681103604X/is2772sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S160053681103604X/is2772Isup2.hkl
MnSO4.H2O (0.1688 g, 0.999 mmol) and 2,2'-bipyrimidine (0.1587 g, 1.003 mmol) in H2O (20 ml) were refluxed for 1 h. After evaporation of the solvent, the residue was washed with ether and dried at 50 °C, to give a light yellow powder (0.3152 g) (Ha, 2011). Crystals suitable for X-ray analysis were obtained by slow evaporation from a mixture of water and dimethyl sulfoxide (DMSO) at 90 °C.
Carbon-bound H atoms were positioned geometrically and allowed to ride on their respective parent atoms [C—H = 0.95 Å and Uiso(H) = 1.2Ueq(C)]. The H atoms of the water ligands were located in a difference Fourier map then allowed to ride on their parent O atoms in the final cycles of
with O—H = 0.84 Å and Uiso(H) = 1.5 Ueq(O). The highest peak (0.75 e Å-3) and the deepest hole (-0.62 e Å-3) in the difference Fourier map are located 0.86 Å and 0.72 Å from the atoms O14 and Mn2, respectively.The
of the title complex, [Mn2(SO4)2(H2O)6(bpym)] (where bpym is 2,2'-bipyrimidine, C8H6N4), contains two crystallographically independent half-molecules of the dinuclear MnII complex; an inversion centre is located at the centroid of each complex (Fig. 1). The two complexes are chemically identical, but somewhat different in geometry. The crystal structures of the complex were previously reported in the same P21/n (De Munno et al., 1995; Hong et al., 1996). The structure presented here is essentially the same as the published, however, the components of a and the cell parameters are quite different. Each of the reported structures contains one half-molecule of the dinuclear complex.In both complexes, two MnII ions are bridged by a bis-chelating bpym ligand to form a dinuclear MnII complex. Each MnII atom is six-coordinated in a considerably distorted octahedral environment defined by two N atoms of the bridging bpym ligand, and four O atoms from one sulfato anionic ligand and three water molecules. However, in the previously reported
of the analogous dinuclear cationic complex [Mn2(H2O)8(bpym)](SO4)2.2H2O, its single crystals were obtained from a water solution at 50 °C, each MnII atom is coordinated by two N atoms from bpym ligand and four O atoms from four water molecules (Ha, 2011).The main contributions to the distortion of the octahedron are the tight N—Mn—N chelate angles [71.50 (8) and 71.46 (8)°] and the bulky SO4 groups, which results in non-linear trans axes [<N1—Mn1—O2 = 157.90 (9)° and <N3—Mn2—O9 = 155.79 (9)°], whereas the apical O1—Mn1—O3 and O8—Mn2—O10 bonds are roughly linear with the bond angles of 175.80 (9)° and 176.15 (8)°, respectively. In the two complexes, however, the apical N—Mn—O(SO4) bond angles are fairly different with <N2—Mn1—O4 = 178.47 (8)° and <N4—Mn2—O11 = 160.35 (8)°, because the coordination modes of the SO4 anions are somewhat different. Atom O4 in the complex with atom Mn1 occupies the equatorial position, but atom O11 in the other complex is inclined considerably to the equatorial plane. The Mn—N and Mn—O bond lengths are roughly equivalent, respectively (Table 1). The geometry of the SO4 ligands are nearly tetrahedral with the O—S—O bond angles of 107.83 (13)–111.48 (16)°, and the S—O bond distances are almost equal with 1.437 (2)–1.477 (2) Å. In the π–π interactions between adjacent pyrimidine rings, the shortest ring centroid-centroid distance being 3.704 (2) Å.
the complexes are linked by O—H···O hydrogen bonds between the water and sulfato ligands, forming a three-dimensional network (Fig. 2, Table 2). In addition, the complexes display numerous intermolecularFor the
of the title complex in the same but with different cell parameters, see: De Munno et al. (1995); Hong et al. (1996). For the synthesis and of [Mn2(H2O)8(bpym)](SO4)2.2H2O, see: Ha (2011).Data collection: SMART (Bruker, 2000); cell
SAINT (Bruker, 2000); data reduction: SAINT (Bruker, 2000); 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 PLATON (Spek, 2009); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008).Fig. 1. The structure of the title complex, with displacement ellipsoids drawn at the 30% probability level for non-H atoms; H atoms are shown as small circles of arbitrary radius. Unlabelled atoms are generated by the application of the inversion centres. | |
Fig. 2. View of the unit-cell contents of the title complex. Hydrogen-bond interactions are drawn with dashed lines. |
[Mn2(SO4)2(C8H6N4)(H2O)6] | F(000) = 1152 |
Mr = 568.26 | Dx = 1.994 Mg m−3 |
Monoclinic, P21/n | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2yn | Cell parameters from 4745 reflections |
a = 12.4401 (18) Å | θ = 2.4–28.3° |
b = 13.2640 (19) Å | µ = 1.64 mm−1 |
c = 12.8951 (18) Å | T = 200 K |
β = 117.199 (3)° | Block, pale yellow |
V = 1892.5 (5) Å3 | 0.33 × 0.23 × 0.20 mm |
Z = 4 |
Bruker SMART 1000 CCD diffractometer | 4652 independent reflections |
Radiation source: fine-focus sealed tube | 3069 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.042 |
φ and ω scans | θmax = 28.3°, θmin = 1.9° |
Absorption correction: multi-scan (SADABS; Bruker, 2000) | h = −16→14 |
Tmin = 0.505, Tmax = 0.721 | k = −13→17 |
13624 measured reflections | l = −17→17 |
Refinement on F2 | Secondary atom site location: difference Fourier map |
Least-squares matrix: full | Hydrogen site location: inferred from neighbouring sites |
R[F2 > 2σ(F2)] = 0.038 | H-atom parameters constrained |
wR(F2) = 0.110 | w = 1/[σ2(Fo2) + (0.0451P)2] where P = (Fo2 + 2Fc2)/3 |
S = 1.08 | (Δ/σ)max < 0.001 |
4652 reflections | Δρmax = 0.75 e Å−3 |
272 parameters | Δρmin = −0.62 e Å−3 |
0 restraints | Extinction correction: SHELXL, Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4 |
Primary atom site location: structure-invariant direct methods | Extinction coefficient: 0.0063 (5) |
[Mn2(SO4)2(C8H6N4)(H2O)6] | V = 1892.5 (5) Å3 |
Mr = 568.26 | Z = 4 |
Monoclinic, P21/n | Mo Kα radiation |
a = 12.4401 (18) Å | µ = 1.64 mm−1 |
b = 13.2640 (19) Å | T = 200 K |
c = 12.8951 (18) Å | 0.33 × 0.23 × 0.20 mm |
β = 117.199 (3)° |
Bruker SMART 1000 CCD diffractometer | 4652 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2000) | 3069 reflections with I > 2σ(I) |
Tmin = 0.505, Tmax = 0.721 | Rint = 0.042 |
13624 measured reflections |
R[F2 > 2σ(F2)] = 0.038 | 0 restraints |
wR(F2) = 0.110 | H-atom parameters constrained |
S = 1.08 | Δρmax = 0.75 e Å−3 |
4652 reflections | Δρmin = −0.62 e Å−3 |
272 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 | 0.26775 (4) | 0.05409 (3) | 0.60729 (4) | 0.01696 (14) | |
S1 | 0.43118 (6) | 0.18859 (5) | 0.50146 (6) | 0.01596 (18) | |
O1 | 0.28486 (19) | −0.08475 (16) | 0.52677 (18) | 0.0272 (5) | |
H1A | 0.3524 | −0.1059 | 0.5363 | 0.041* | |
H1B | 0.2528 | −0.1369 | 0.5374 | 0.041* | |
O2 | 0.39400 (18) | 0.00236 (15) | 0.77569 (16) | 0.0239 (5) | |
H2A | 0.4336 | 0.0382 | 0.8348 | 0.036* | |
H2B | 0.4169 | −0.0568 | 0.7983 | 0.036* | |
O3 | 0.24123 (19) | 0.18829 (16) | 0.69190 (18) | 0.0307 (6) | |
H3A | 0.2758 | 0.2102 | 0.7606 | 0.046* | |
H3B | 0.1933 | 0.2374 | 0.6692 | 0.046* | |
O4 | 0.4044 (2) | 0.12401 (17) | 0.57997 (19) | 0.0335 (6) | |
O5 | 0.31606 (19) | 0.22742 (16) | 0.40891 (18) | 0.0271 (5) | |
O6 | 0.49194 (19) | 0.12919 (17) | 0.44799 (18) | 0.0319 (6) | |
O7 | 0.5076 (2) | 0.27128 (16) | 0.56795 (18) | 0.0310 (6) | |
N1 | 0.0832 (2) | 0.07677 (17) | 0.44664 (19) | 0.0175 (5) | |
N2 | 0.1216 (2) | −0.02504 (17) | 0.64137 (19) | 0.0167 (5) | |
C1 | 0.0618 (3) | 0.1279 (2) | 0.3487 (2) | 0.0223 (7) | |
H1 | 0.1259 | 0.1646 | 0.3456 | 0.027* | |
C2 | −0.0501 (3) | 0.1283 (2) | 0.2535 (3) | 0.0232 (7) | |
H2 | −0.0643 | 0.1642 | 0.1847 | 0.028* | |
C3 | 0.1404 (3) | −0.0753 (2) | 0.7387 (2) | 0.0205 (6) | |
H3 | 0.2185 | −0.0739 | 0.8038 | 0.025* | |
C4 | −0.0104 (2) | 0.0281 (2) | 0.4461 (2) | 0.0138 (6) | |
Mn2 | 0.27208 (4) | 0.03864 (3) | 0.10592 (4) | 0.01670 (14) | |
S2 | 0.43943 (6) | 0.17926 (5) | 0.01112 (6) | 0.01673 (18) | |
O8 | 0.28871 (19) | −0.10874 (15) | 0.03961 (18) | 0.0263 (5) | |
H8A | 0.3584 | −0.1216 | 0.0483 | 0.039* | |
H8B | 0.2573 | −0.1559 | 0.0599 | 0.039* | |
O9 | 0.38962 (18) | −0.00536 (16) | 0.28077 (16) | 0.0247 (5) | |
H9A | 0.4206 | 0.0376 | 0.3343 | 0.037* | |
H9B | 0.4414 | −0.0517 | 0.3015 | 0.037* | |
O10 | 0.24556 (18) | 0.18206 (15) | 0.17427 (17) | 0.0251 (5) | |
H10A | 0.2581 | 0.2050 | 0.2395 | 0.038* | |
H10B | 0.1723 | 0.1983 | 0.1458 | 0.038* | |
O11 | 0.3665 (2) | 0.09401 (16) | 0.01777 (19) | 0.0291 (5) | |
O12 | 0.3684 (2) | 0.26991 (19) | −0.0240 (2) | 0.0554 (8) | |
O13 | 0.4819 (2) | 0.15436 (17) | −0.07476 (18) | 0.0305 (6) | |
O14 | 0.5442 (2) | 0.19069 (18) | 0.12602 (18) | 0.0377 (6) | |
N3 | 0.0900 (2) | 0.06865 (17) | −0.05238 (19) | 0.0161 (5) | |
N4 | 0.1205 (2) | −0.03640 (17) | 0.1383 (2) | 0.0170 (5) | |
C5 | 0.0733 (3) | 0.1240 (2) | −0.1460 (2) | 0.0204 (6) | |
H5 | 0.1409 | 0.1552 | −0.1483 | 0.025* | |
C6 | −0.0389 (3) | 0.1363 (2) | −0.2376 (2) | 0.0225 (7) | |
H6 | −0.0503 | 0.1753 | −0.3037 | 0.027* | |
C7 | 0.1351 (3) | −0.0905 (2) | 0.2315 (2) | 0.0208 (7) | |
H7 | 0.2137 | −0.0973 | 0.2949 | 0.025* | |
C8 | −0.0082 (3) | 0.0289 (2) | −0.0528 (2) | 0.0146 (6) |
U11 | U22 | U33 | U12 | U13 | U23 | |
Mn1 | 0.0130 (3) | 0.0182 (3) | 0.0180 (2) | −0.00137 (17) | 0.0057 (2) | 0.00144 (18) |
S1 | 0.0154 (4) | 0.0149 (4) | 0.0181 (4) | −0.0013 (3) | 0.0081 (3) | −0.0016 (3) |
O1 | 0.0226 (12) | 0.0219 (12) | 0.0391 (13) | −0.0005 (9) | 0.0158 (11) | −0.0065 (10) |
O2 | 0.0209 (12) | 0.0226 (12) | 0.0184 (10) | 0.0019 (9) | 0.0005 (9) | −0.0004 (9) |
O3 | 0.0274 (13) | 0.0243 (13) | 0.0301 (12) | 0.0048 (9) | 0.0044 (10) | −0.0059 (10) |
O4 | 0.0257 (13) | 0.0330 (14) | 0.0454 (14) | 0.0004 (10) | 0.0194 (11) | 0.0163 (11) |
O5 | 0.0227 (13) | 0.0285 (13) | 0.0274 (12) | 0.0052 (9) | 0.0091 (10) | 0.0014 (10) |
O6 | 0.0221 (13) | 0.0362 (14) | 0.0367 (13) | 0.0021 (10) | 0.0130 (11) | −0.0127 (11) |
O7 | 0.0291 (14) | 0.0299 (13) | 0.0341 (12) | −0.0108 (10) | 0.0144 (11) | −0.0113 (10) |
N1 | 0.0174 (13) | 0.0167 (13) | 0.0178 (12) | −0.0015 (10) | 0.0076 (11) | 0.0005 (10) |
N2 | 0.0147 (13) | 0.0183 (13) | 0.0158 (12) | −0.0005 (9) | 0.0058 (10) | 0.0011 (10) |
C1 | 0.0209 (17) | 0.0226 (16) | 0.0243 (16) | 0.0012 (12) | 0.0113 (14) | 0.0040 (13) |
C2 | 0.0277 (18) | 0.0235 (17) | 0.0195 (15) | 0.0006 (13) | 0.0118 (14) | 0.0040 (13) |
C3 | 0.0189 (16) | 0.0230 (16) | 0.0160 (14) | 0.0007 (12) | 0.0048 (12) | 0.0018 (12) |
C4 | 0.0126 (14) | 0.0151 (14) | 0.0145 (14) | −0.0007 (10) | 0.0067 (11) | −0.0016 (11) |
Mn2 | 0.0142 (3) | 0.0182 (3) | 0.0166 (2) | −0.00171 (17) | 0.00615 (19) | −0.00021 (18) |
S2 | 0.0169 (4) | 0.0160 (4) | 0.0193 (4) | 0.0012 (3) | 0.0100 (3) | 0.0013 (3) |
O8 | 0.0253 (13) | 0.0193 (12) | 0.0411 (13) | −0.0016 (9) | 0.0213 (11) | −0.0029 (10) |
O9 | 0.0182 (12) | 0.0269 (12) | 0.0195 (11) | 0.0052 (9) | 0.0004 (9) | −0.0004 (9) |
O10 | 0.0206 (12) | 0.0254 (12) | 0.0248 (11) | 0.0008 (9) | 0.0064 (10) | −0.0066 (9) |
O11 | 0.0297 (13) | 0.0260 (13) | 0.0358 (13) | −0.0068 (9) | 0.0186 (11) | −0.0001 (10) |
O12 | 0.0575 (19) | 0.0369 (16) | 0.090 (2) | 0.0299 (13) | 0.0495 (18) | 0.0336 (15) |
O13 | 0.0343 (14) | 0.0358 (14) | 0.0312 (12) | −0.0135 (10) | 0.0236 (11) | −0.0124 (10) |
O14 | 0.0369 (15) | 0.0439 (16) | 0.0240 (12) | −0.0175 (11) | 0.0068 (11) | −0.0047 (11) |
N3 | 0.0154 (13) | 0.0156 (12) | 0.0170 (12) | −0.0024 (9) | 0.0070 (10) | −0.0001 (10) |
N4 | 0.0153 (13) | 0.0191 (13) | 0.0162 (12) | 0.0015 (9) | 0.0070 (10) | 0.0008 (10) |
C5 | 0.0228 (17) | 0.0199 (16) | 0.0232 (15) | −0.0019 (12) | 0.0145 (13) | 0.0036 (13) |
C6 | 0.0251 (18) | 0.0240 (17) | 0.0204 (15) | 0.0040 (13) | 0.0120 (14) | 0.0087 (13) |
C7 | 0.0224 (17) | 0.0205 (16) | 0.0165 (14) | 0.0032 (12) | 0.0062 (13) | 0.0054 (12) |
C8 | 0.0174 (15) | 0.0116 (14) | 0.0145 (14) | −0.0008 (10) | 0.0071 (12) | −0.0015 (11) |
Mn1—O4 | 2.103 (2) | Mn2—O11 | 2.105 (2) |
Mn1—O2 | 2.1295 (19) | Mn2—O9 | 2.1327 (19) |
Mn1—O1 | 2.172 (2) | Mn2—O8 | 2.181 (2) |
Mn1—O3 | 2.190 (2) | Mn2—O10 | 2.184 (2) |
Mn1—N1 | 2.303 (2) | Mn2—N3 | 2.287 (2) |
Mn1—N2 | 2.308 (2) | Mn2—N4 | 2.332 (2) |
S1—O7 | 1.448 (2) | S2—O12 | 1.437 (2) |
S1—O6 | 1.464 (2) | S2—O13 | 1.466 (2) |
S1—O4 | 1.476 (2) | S2—O14 | 1.467 (2) |
S1—O5 | 1.476 (2) | S2—O11 | 1.477 (2) |
O1—H1A | 0.8400 | O8—H8A | 0.8400 |
O1—H1B | 0.8400 | O8—H8B | 0.8400 |
O2—H2A | 0.8400 | O9—H9A | 0.8400 |
O2—H2B | 0.8400 | O9—H9B | 0.8400 |
O3—H3A | 0.8400 | O10—H10A | 0.8400 |
O3—H3B | 0.8400 | O10—H10B | 0.8400 |
N1—C4 | 1.328 (3) | N3—C8 | 1.328 (3) |
N1—C1 | 1.348 (4) | N3—C5 | 1.345 (3) |
N2—C4i | 1.327 (3) | N4—C8ii | 1.330 (3) |
N2—C3 | 1.344 (4) | N4—C7 | 1.339 (3) |
C1—C2 | 1.372 (4) | C5—C6 | 1.365 (4) |
C1—H1 | 0.9500 | C5—H5 | 0.9500 |
C2—C3i | 1.368 (4) | C6—C7ii | 1.376 (4) |
C2—H2 | 0.9500 | C6—H6 | 0.9500 |
C3—H3 | 0.9500 | C7—H7 | 0.9500 |
C4—C4i | 1.492 (5) | C8—C8ii | 1.494 (5) |
O4—Mn1—O2 | 92.12 (8) | O11—Mn2—O9 | 112.59 (9) |
O4—Mn1—O1 | 91.74 (9) | O11—Mn2—O8 | 85.68 (8) |
O2—Mn1—O1 | 91.52 (8) | O9—Mn2—O8 | 91.55 (8) |
O4—Mn1—O3 | 92.43 (9) | O11—Mn2—O10 | 97.96 (8) |
O2—Mn1—O3 | 87.86 (8) | O9—Mn2—O10 | 88.21 (8) |
O1—Mn1—O3 | 175.80 (9) | O8—Mn2—O10 | 176.15 (8) |
O4—Mn1—N1 | 109.97 (9) | O11—Mn2—N3 | 91.54 (9) |
O2—Mn1—N1 | 157.90 (9) | O9—Mn2—N3 | 155.79 (9) |
O1—Mn1—N1 | 87.48 (8) | O8—Mn2—N3 | 92.22 (8) |
O3—Mn1—N1 | 91.53 (8) | O10—Mn2—N3 | 86.44 (8) |
O4—Mn1—N2 | 178.47 (8) | O11—Mn2—N4 | 160.35 (8) |
O2—Mn1—N2 | 86.41 (8) | O9—Mn2—N4 | 85.05 (8) |
O1—Mn1—N2 | 87.90 (8) | O8—Mn2—N4 | 85.24 (8) |
O3—Mn1—N2 | 87.92 (9) | O10—Mn2—N4 | 90.92 (8) |
N1—Mn1—N2 | 71.50 (8) | N3—Mn2—N4 | 71.46 (8) |
O7—S1—O6 | 110.25 (13) | O12—S2—O13 | 109.38 (15) |
O7—S1—O4 | 109.04 (13) | O12—S2—O14 | 111.48 (16) |
O6—S1—O4 | 109.73 (14) | O13—S2—O14 | 109.04 (14) |
O7—S1—O5 | 110.26 (13) | O12—S2—O11 | 110.72 (15) |
O6—S1—O5 | 109.03 (12) | O13—S2—O11 | 108.32 (13) |
O4—S1—O5 | 108.51 (13) | O14—S2—O11 | 107.83 (13) |
Mn1—O1—H1A | 121.6 | Mn2—O8—H8A | 114.0 |
Mn1—O1—H1B | 117.5 | Mn2—O8—H8B | 113.8 |
H1A—O1—H1B | 102.6 | H8A—O8—H8B | 114.0 |
Mn1—O2—H2A | 126.6 | Mn2—O9—H9A | 121.2 |
Mn1—O2—H2B | 129.0 | Mn2—O9—H9B | 126.3 |
H2A—O2—H2B | 104.4 | H9A—O9—H9B | 103.7 |
Mn1—O3—H3A | 133.3 | Mn2—O10—H10A | 136.6 |
Mn1—O3—H3B | 134.5 | Mn2—O10—H10B | 112.3 |
H3A—O3—H3B | 92.2 | H10A—O10—H10B | 90.8 |
S1—O4—Mn1 | 145.49 (14) | S2—O11—Mn2 | 143.88 (14) |
C4—N1—C1 | 116.2 (2) | C8—N3—C5 | 116.6 (2) |
C4—N1—Mn1 | 116.88 (18) | C8—N3—Mn2 | 117.95 (18) |
C1—N1—Mn1 | 126.6 (2) | C5—N3—Mn2 | 125.42 (19) |
C4i—N2—C3 | 116.6 (2) | C8ii—N4—C7 | 116.3 (3) |
C4i—N2—Mn1 | 117.25 (18) | C8ii—N4—Mn2 | 116.68 (18) |
C3—N2—Mn1 | 125.96 (19) | C7—N4—Mn2 | 126.9 (2) |
N1—C1—C2 | 121.7 (3) | N3—C5—C6 | 121.3 (3) |
N1—C1—H1 | 119.2 | N3—C5—H5 | 119.3 |
C2—C1—H1 | 119.2 | C6—C5—H5 | 119.3 |
C3i—C2—C1 | 117.7 (3) | C5—C6—C7ii | 118.0 (3) |
C3i—C2—H2 | 121.2 | C5—C6—H6 | 121.0 |
C1—C2—H2 | 121.2 | C7ii—C6—H6 | 121.0 |
N2—C3—C2i | 121.7 (3) | N4—C7—C6ii | 121.6 (3) |
N2—C3—H3 | 119.2 | N4—C7—H7 | 119.2 |
C2i—C3—H3 | 119.2 | C6ii—C7—H7 | 119.2 |
N2i—C4—N1 | 126.2 (2) | N3—C8—N4ii | 126.1 (2) |
N2i—C4—C4i | 116.5 (3) | N3—C8—C8ii | 117.3 (3) |
N1—C4—C4i | 117.4 (3) | N4ii—C8—C8ii | 116.6 (3) |
O7—S1—O4—Mn1 | 127.8 (3) | O14—S2—O11—Mn2 | 57.7 (3) |
O6—S1—O4—Mn1 | −111.4 (3) | O9—Mn2—O11—S2 | −70.5 (3) |
O5—S1—O4—Mn1 | 7.7 (3) | O8—Mn2—O11—S2 | −160.4 (2) |
O2—Mn1—O4—S1 | −174.7 (3) | O10—Mn2—O11—S2 | 20.9 (2) |
O1—Mn1—O4—S1 | 93.7 (3) | N3—Mn2—O11—S2 | 107.5 (2) |
O3—Mn1—O4—S1 | −86.7 (3) | N4—Mn2—O11—S2 | 137.0 (2) |
N1—Mn1—O4—S1 | 5.8 (3) | O11—Mn2—N3—C8 | 167.6 (2) |
O4—Mn1—N1—C4 | 173.38 (19) | O9—Mn2—N3—C8 | −16.9 (3) |
O2—Mn1—N1—C4 | −5.4 (4) | O8—Mn2—N3—C8 | 81.9 (2) |
O1—Mn1—N1—C4 | 82.4 (2) | O10—Mn2—N3—C8 | −94.5 (2) |
O3—Mn1—N1—C4 | −93.5 (2) | N4—Mn2—N3—C8 | −2.31 (19) |
N2—Mn1—N1—C4 | −6.18 (19) | O11—Mn2—N3—C5 | −12.6 (2) |
O4—Mn1—N1—C1 | −0.9 (3) | O9—Mn2—N3—C5 | 162.9 (2) |
O2—Mn1—N1—C1 | −179.7 (2) | O8—Mn2—N3—C5 | −98.4 (2) |
O1—Mn1—N1—C1 | −91.8 (2) | O10—Mn2—N3—C5 | 85.2 (2) |
O3—Mn1—N1—C1 | 92.3 (2) | N4—Mn2—N3—C5 | 177.4 (2) |
N2—Mn1—N1—C1 | 179.5 (3) | O11—Mn2—N4—C8ii | −29.3 (4) |
O2—Mn1—N2—C4i | −173.7 (2) | O9—Mn2—N4—C8ii | 176.0 (2) |
O1—Mn1—N2—C4i | −82.0 (2) | O8—Mn2—N4—C8ii | −92.0 (2) |
O3—Mn1—N2—C4i | 98.4 (2) | O10—Mn2—N4—C8ii | 87.9 (2) |
N1—Mn1—N2—C4i | 6.04 (19) | N3—Mn2—N4—C8ii | 1.92 (19) |
O2—Mn1—N2—C3 | 0.8 (2) | O11—Mn2—N4—C7 | 147.2 (3) |
O1—Mn1—N2—C3 | 92.4 (2) | O9—Mn2—N4—C7 | −7.5 (2) |
O3—Mn1—N2—C3 | −87.2 (2) | O8—Mn2—N4—C7 | 84.5 (2) |
N1—Mn1—N2—C3 | −179.5 (2) | O10—Mn2—N4—C7 | −95.6 (2) |
C4—N1—C1—C2 | −0.9 (4) | N3—Mn2—N4—C7 | 178.5 (2) |
Mn1—N1—C1—C2 | 173.5 (2) | C8—N3—C5—C6 | −1.5 (4) |
N1—C1—C2—C3i | 0.4 (4) | Mn2—N3—C5—C6 | 178.8 (2) |
C4i—N2—C3—C2i | 1.1 (4) | N3—C5—C6—C7ii | 0.2 (4) |
Mn1—N2—C3—C2i | −173.4 (2) | C8ii—N4—C7—C6ii | 0.6 (4) |
C1—N1—C4—N2i | 0.3 (4) | Mn2—N4—C7—C6ii | −176.0 (2) |
Mn1—N1—C4—N2i | −174.6 (2) | C5—N3—C8—N4ii | 2.0 (4) |
C1—N1—C4—C4i | −179.3 (3) | Mn2—N3—C8—N4ii | −178.3 (2) |
Mn1—N1—C4—C4i | 5.8 (4) | C5—N3—C8—C8ii | −177.3 (3) |
O12—S2—O11—Mn2 | −64.5 (3) | Mn2—N3—C8—C8ii | 2.4 (4) |
O13—S2—O11—Mn2 | 175.6 (2) |
Symmetry codes: (i) −x, −y, −z+1; (ii) −x, −y, −z. |
D—H···A | D—H | H···A | D···A | D—H···A |
O1—H1A···O6iii | 0.84 | 1.88 | 2.709 (3) | 170 |
O1—H1B···O12iv | 0.84 | 1.90 | 2.700 (3) | 160 |
O2—H2A···O13v | 0.84 | 1.86 | 2.655 (3) | 158 |
O2—H2B···O14iii | 0.84 | 1.98 | 2.804 (3) | 168 |
O3—H3A···O12v | 0.84 | 2.60 | 3.434 (4) | 175 |
O3—H3B···O14vi | 0.84 | 1.93 | 2.721 (3) | 157 |
O8—H8A···O13vii | 0.84 | 1.91 | 2.745 (3) | 177 |
O8—H8B···O5iv | 0.84 | 1.93 | 2.766 (3) | 173 |
O9—H9A···O6 | 0.84 | 1.80 | 2.636 (3) | 178 |
O9—H9B···O4iii | 0.84 | 2.06 | 2.839 (3) | 153 |
O10—H10A···O5 | 0.84 | 1.98 | 2.804 (3) | 165 |
O10—H10B···O7viii | 0.84 | 1.87 | 2.705 (3) | 174 |
Symmetry codes: (iii) −x+1, −y, −z+1; (iv) −x+1/2, y−1/2, −z+1/2; (v) x, y, z+1; (vi) x−1/2, −y+1/2, z+1/2; (vii) −x+1, −y, −z; (viii) x−1/2, −y+1/2, z−1/2. |
Experimental details
Crystal data | |
Chemical formula | [Mn2(SO4)2(C8H6N4)(H2O)6] |
Mr | 568.26 |
Crystal system, space group | Monoclinic, P21/n |
Temperature (K) | 200 |
a, b, c (Å) | 12.4401 (18), 13.2640 (19), 12.8951 (18) |
β (°) | 117.199 (3) |
V (Å3) | 1892.5 (5) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 1.64 |
Crystal size (mm) | 0.33 × 0.23 × 0.20 |
Data collection | |
Diffractometer | Bruker SMART 1000 CCD |
Absorption correction | Multi-scan (SADABS; Bruker, 2000) |
Tmin, Tmax | 0.505, 0.721 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 13624, 4652, 3069 |
Rint | 0.042 |
(sin θ/λ)max (Å−1) | 0.668 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.038, 0.110, 1.08 |
No. of reflections | 4652 |
No. of parameters | 272 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.75, −0.62 |
Computer programs: SMART (Bruker, 2000), SAINT (Bruker, 2000), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), ORTEP-3 (Farrugia, 1997) and PLATON (Spek, 2009).
Mn1—O4 | 2.103 (2) | Mn2—O11 | 2.105 (2) |
Mn1—O2 | 2.1295 (19) | Mn2—O9 | 2.1327 (19) |
Mn1—O1 | 2.172 (2) | Mn2—O8 | 2.181 (2) |
Mn1—O3 | 2.190 (2) | Mn2—O10 | 2.184 (2) |
Mn1—N1 | 2.303 (2) | Mn2—N3 | 2.287 (2) |
Mn1—N2 | 2.308 (2) | Mn2—N4 | 2.332 (2) |
D—H···A | D—H | H···A | D···A | D—H···A |
O1—H1A···O6i | 0.84 | 1.88 | 2.709 (3) | 169.7 |
O1—H1B···O12ii | 0.84 | 1.90 | 2.700 (3) | 159.9 |
O2—H2A···O13iii | 0.84 | 1.86 | 2.655 (3) | 157.7 |
O2—H2B···O14i | 0.84 | 1.98 | 2.804 (3) | 167.9 |
O3—H3A···O12iii | 0.84 | 2.60 | 3.434 (4) | 175.0 |
O3—H3B···O14iv | 0.84 | 1.93 | 2.721 (3) | 157.0 |
O8—H8A···O13v | 0.84 | 1.91 | 2.745 (3) | 177.2 |
O8—H8B···O5ii | 0.84 | 1.93 | 2.766 (3) | 173.4 |
O9—H9A···O6 | 0.84 | 1.80 | 2.636 (3) | 177.9 |
O9—H9B···O4i | 0.84 | 2.06 | 2.839 (3) | 153.3 |
O10—H10A···O5 | 0.84 | 1.98 | 2.804 (3) | 164.7 |
O10—H10B···O7vi | 0.84 | 1.87 | 2.705 (3) | 174.1 |
Symmetry codes: (i) −x+1, −y, −z+1; (ii) −x+1/2, y−1/2, −z+1/2; (iii) x, y, z+1; (iv) x−1/2, −y+1/2, z+1/2; (v) −x+1, −y, −z; (vi) x−1/2, −y+1/2, z−1/2. |
Acknowledgements
This work was supported by the Priority Research Centers Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (2010–0029626).
References
Bruker (2000). SADABS, SMART and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
De Munno, G., Ruiz, R., Lloret, F., Faus, J., Sessoli, R. & Julve, M. (1995). Inorg. Chem. 34, 408–411. CSD CrossRef CAS Web of Science Google Scholar
Farrugia, L. J. (1997). J. Appl. Cryst. 30, 565. CrossRef IUCr Journals Google Scholar
Ha, K. (2011). Z. Kristallogr. New Cryst. Struct. 226, 313–314. CAS Google Scholar
Hong, D. M., Chu, Y. Y. & Wei, H. H. (1996). Polyhedron, 15, 447–452. CSD CrossRef CAS Web of Science Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Spek, A. L. (2009). Acta Cryst. D65, 148–155. Web of Science CrossRef CAS IUCr Journals 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.
The asymmetric unit of the title complex, [Mn2(SO4)2(H2O)6(bpym)] (where bpym is 2,2'-bipyrimidine, C8H6N4), contains two crystallographically independent half-molecules of the dinuclear MnII complex; an inversion centre is located at the centroid of each complex (Fig. 1). The two complexes are chemically identical, but somewhat different in geometry. The crystal structures of the complex were previously reported in the same space group P21/n (De Munno et al., 1995; Hong et al., 1996). The structure presented here is essentially the same as the published, however, the components of a unit cell and the cell parameters are quite different. Each asymmetric unit of the reported structures contains one half-molecule of the dinuclear complex.
In both complexes, two MnII ions are bridged by a bis-chelating bpym ligand to form a dinuclear MnII complex. Each MnII atom is six-coordinated in a considerably distorted octahedral environment defined by two N atoms of the bridging bpym ligand, and four O atoms from one sulfato anionic ligand and three water molecules. However, in the previously reported crystal structure of the analogous dinuclear cationic complex [Mn2(H2O)8(bpym)](SO4)2.2H2O, its single crystals were obtained from a water solution at 50 °C, each MnII atom is coordinated by two N atoms from bpym ligand and four O atoms from four water molecules (Ha, 2011).
The main contributions to the distortion of the octahedron are the tight N—Mn—N chelate angles [71.50 (8) and 71.46 (8)°] and the bulky SO4 groups, which results in non-linear trans axes [<N1—Mn1—O2 = 157.90 (9)° and <N3—Mn2—O9 = 155.79 (9)°], whereas the apical O1—Mn1—O3 and O8—Mn2—O10 bonds are roughly linear with the bond angles of 175.80 (9)° and 176.15 (8)°, respectively. In the two complexes, however, the apical N—Mn—O(SO4) bond angles are fairly different with <N2—Mn1—O4 = 178.47 (8)° and <N4—Mn2—O11 = 160.35 (8)°, because the coordination modes of the SO4 anions are somewhat different. Atom O4 in the complex with atom Mn1 occupies the equatorial position, but atom O11 in the other complex is inclined considerably to the equatorial plane. The Mn—N and Mn—O bond lengths are roughly equivalent, respectively (Table 1). The geometry of the SO4 ligands are nearly tetrahedral with the O—S—O bond angles of 107.83 (13)–111.48 (16)°, and the S—O bond distances are almost equal with 1.437 (2)–1.477 (2) Å. In the crystal structure, the complexes are linked by O—H···O hydrogen bonds between the water and sulfato ligands, forming a three-dimensional network (Fig. 2, Table 2). In addition, the complexes display numerous intermolecular π–π interactions between adjacent pyrimidine rings, the shortest ring centroid-centroid distance being 3.704 (2) Å.