
Acta Cryst. (2008). E64, m3-m4 [ doi:10.1107/S1600536807061314 ]
-4,4'-Diazenediyldiphthalato-
2O2:O2'-bis[pentaaquamanganese(II)] tetrahydrateThe dinuclear complex in the title compound, [Mn2(C16H6N2O8)(H2O)10]·4H2O, lies on an inversion center. Two delocalized carboxylate groups are each connected in a monodentate fashion to two similar pentaaquamanganese units, whereas the other two localized carboxylate groups are uncoordinated. The metal ion has octahedral coordination, with the O atom of a carboxylate group and three coordinated water molecules forming the equatorial plane [Mn-OCOO = 2.143 (4) Å] and two water molecules occupying the axial positions. The architecture is further consolidated by extensive hydrogen bonds for which coordinated water molecules serve as donors or acceptors.
MnSO4(0.032 g, 0.017 mmol), L(0.029 g, 0.014 mmol) and NaOH(0.048 mmol,0.12 mmol), were added in a mixed solvent of acetonitrile, the mixture was heated for six hours under reflux. During the process stirring and influx were required. The resultant was then filtered to give a pure solution which was infiltrated by diethyl ether freely in a closed vessel, a weeks later some single crystals of the size suitable for X-Ray diffraction analysis.
All H atoms attached to C atoms were fixed geometrically and treated as riding with C—H = 0.93 Å and Uiso(H) = 1.2Ueq(C). H atoms of water molecule were located in difference Fourier maps and included in the subsequent refinement using restraints (O—H= 0.84 (1)Å and H···H= 1.38 (2) Å) with Uiso(H) = 1.5Ueq(O). In the last stage of refinement, they were treated as riding on their parent O atoms.
Data collection: APEX2 (Bruker, 2004); cell refinement: SAINT (Bruker, 2004); data reduction: SAINT (Bruker, 2004); program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: ORTEPIII (Burnett & Johnson, 1996) and ORTEP-3 for Windows (Farrugia, 1997); software used to prepare material for publication: SHELXL97.
| [Mn2(C16H6N2O8)(H2O)10]·4H2O | F000 = 740 |
| Mr = 716.33 | Dx = 1.678 Mg m−3 |
| Monoclinic, P21/c | Mo Kα radiation λ = 0.71073 Å |
| Hall symbol: -P 2ybc | Cell parameters from 2649 reflections |
| a = 6.9674 (10) Å | θ = 2.0–25.5º |
| b = 15.186 (2) Å | µ = 0.99 mm−1 |
| c = 13.5576 (19) Å | T = 298 (2) K |
| β = 98.812 (2)º | Block, yellow |
| V = 1417.5 (3) Å3 | 0.29 × 0.25 × 0.18 mm |
| Z = 2 |
| Bruker APEX-II area-detector diffractometer | 2649 independent reflections |
| Radiation source: fine-focus sealed tube | 2349 reflections with I > 2σ(I) |
| Monochromator: graphite | Rint = 0.019 |
| T = 298(2) K | θmax = 25.5º |
| φ and ω scan | θmin = 2.0º |
| Absorption correction: multi-scan (SADABS; Bruker, 2004) | h = −8→7 |
| Tmin = 0.763, Tmax = 0.842 | k = −18→17 |
| 7535 measured reflections | l = −16→16 |
| 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)] = 0.033 | H-atom parameters constrained |
| wR(F2) = 0.090 | w = 1/[σ2(Fo2) + (0.0505P)2 + 0.4924P] where P = (Fo2 + 2Fc2)/3 |
| S = 1.06 | (Δ/σ)max = 0.001 |
| 2649 reflections | Δρmax = 0.64 e Å−3 |
| 184 parameters | Δρmin = −0.30 e Å−3 |
| Primary atom site location: structure-invariant direct methods | Extinction correction: none |
| [Mn2(C16H6N2O8)(H2O)10]·4H2O | V = 1417.5 (3) Å3 |
| Mr = 716.33 | Z = 2 |
| Monoclinic, P21/c | Mo Kα |
| a = 6.9674 (10) Å | µ = 0.99 mm−1 |
| b = 15.186 (2) Å | T = 298 (2) K |
| c = 13.5576 (19) Å | 0.29 × 0.25 × 0.18 mm |
| β = 98.812 (2)º |
| Bruker APEX-II area-detector diffractometer | 2649 independent reflections |
| Absorption correction: multi-scan (SADABS; Bruker, 2004) | 2349 reflections with I > 2σ(I) |
| Tmin = 0.763, Tmax = 0.842 | Rint = 0.019 |
| 7535 measured reflections |
| R[F2 > 2σ(F2)] = 0.033 | 184 parameters |
| wR(F2) = 0.090 | H-atom parameters constrained |
| S = 1.06 | Δρmax = 0.64 e Å−3 |
| 2649 reflections | Δρmin = −0.30 e Å−3 |
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 | 1.15210 (4) | 0.59508 (2) | 0.87665 (2) | 0.02864 (12) | |
| O1 | 0.9887 (2) | 0.47791 (9) | 0.83401 (10) | 0.0337 (3) | |
| O2 | 0.9981 (2) | 0.33199 (9) | 0.83063 (10) | 0.0333 (3) | |
| O3 | 1.3292 (2) | 0.26635 (10) | 0.62459 (11) | 0.0367 (4) | |
| O4 | 1.3672 (2) | 0.37832 (10) | 0.73190 (12) | 0.0388 (4) | |
| O1W | 1.3818 (3) | 0.54312 (11) | 0.80243 (14) | 0.0528 (5) | |
| H1WA | 1.4600 | 0.5680 | 0.7730 | 0.079* | |
| H1WB | 1.3730 | 0.4930 | 0.7790 | 0.079* | |
| O2W | 1.2906 (2) | 0.52547 (12) | 1.01240 (12) | 0.0484 (4) | |
| H2WA | 1.2359 | 0.4830 | 1.0320 | 0.073* | |
| H2WB | 1.3829 | 0.5350 | 1.0540 | 0.073* | |
| O3W | 1.3327 (2) | 0.70714 (11) | 0.92397 (13) | 0.0479 (4) | |
| H3WB | 1.3530 | 0.7149 | 0.9850 | 0.072* | |
| H3WA | 1.4280 | 0.7279 | 0.9050 | 0.072* | |
| O4W | 0.9230 (2) | 0.63843 (10) | 0.96205 (10) | 0.033 | |
| H4WA | 0.9370 | 0.6470 | 1.0220 | 0.050* | |
| H4WB | 0.8500 | 0.6770 | 0.9370 | 0.050* | |
| O5W | 0.9978 (2) | 0.66502 (10) | 0.74917 (10) | 0.0379 (4) | |
| H5WA | 1.0061 | 0.7170 | 0.7330 | 0.057* | |
| H5WB | 0.8841 | 0.6530 | 0.7280 | 0.057* | |
| O6W | 1.3892 (3) | 0.71325 (14) | 1.13418 (13) | 0.0563 (5) | |
| H6WA | 1.4620 | 0.6809 | 1.1780 | 0.085* | |
| H6WB | 1.2720 | 0.7029 | 1.1450 | 0.085* | |
| O7W | 1.6084 (3) | 0.63676 (12) | 0.68914 (14) | 0.0547 (5) | |
| H7WB | 1.5680 | 0.6040 | 0.6340 | 0.082* | |
| H7WA | 1.5380 | 0.6840 | 0.6800 | 0.082* | |
| N1 | 0.5413 (2) | 0.47199 (12) | 0.47708 (12) | 0.0319 (4) | |
| C1 | 0.9867 (3) | 0.40586 (12) | 0.78879 (14) | 0.0235 (4) | |
| C2 | 0.9492 (3) | 0.40791 (12) | 0.67589 (14) | 0.0225 (4) | |
| C4 | 1.2725 (3) | 0.33562 (13) | 0.66100 (14) | 0.0266 (4) | |
| C7 | 0.7227 (3) | 0.44018 (14) | 0.52778 (14) | 0.0275 (4) | |
| C6 | 0.8475 (3) | 0.40308 (13) | 0.46864 (15) | 0.0299 (5) | |
| H6 | 0.8129 | 0.4012 | 0.3996 | 0.036* | |
| C5 | 1.0234 (3) | 0.36904 (13) | 0.51324 (14) | 0.0284 (4) | |
| H5 | 1.1074 | 0.3444 | 0.4737 | 0.034* | |
| C3 | 1.0769 (3) | 0.37103 (13) | 0.61650 (14) | 0.0240 (4) | |
| C8 | 0.7726 (3) | 0.44200 (13) | 0.63154 (14) | 0.0259 (4) | |
| H8 | 0.6874 | 0.4661 | 0.6707 | 0.031* |
| U11 | U22 | U33 | U12 | U13 | U23 | |
| Mn1 | 0.0314 (2) | 0.02601 (19) | 0.02938 (19) | −0.00248 (12) | 0.00726 (14) | −0.00193 (12) |
| O1 | 0.0456 (9) | 0.0266 (8) | 0.0288 (7) | −0.0029 (6) | 0.0055 (6) | −0.0064 (6) |
| O2 | 0.0488 (9) | 0.0263 (8) | 0.0237 (7) | 0.0037 (6) | 0.0023 (6) | 0.0022 (6) |
| O3 | 0.0288 (8) | 0.0391 (9) | 0.0409 (9) | 0.0106 (6) | 0.0014 (7) | −0.0095 (7) |
| O4 | 0.0311 (8) | 0.0381 (9) | 0.0432 (9) | 0.0052 (7) | −0.0073 (7) | −0.0100 (7) |
| O1W | 0.0564 (11) | 0.0408 (10) | 0.0688 (12) | −0.0066 (8) | 0.0341 (9) | −0.0147 (8) |
| O2W | 0.0398 (9) | 0.0596 (11) | 0.0423 (9) | −0.0040 (8) | −0.0046 (7) | 0.0144 (8) |
| O3W | 0.0429 (10) | 0.0472 (10) | 0.0571 (11) | −0.0201 (8) | 0.0179 (8) | −0.0139 (8) |
| O4W | 0.039 | 0.036 | 0.025 | 0.007 | 0.005 | 0.002 |
| O5W | 0.0456 (9) | 0.0326 (8) | 0.0347 (8) | −0.0026 (7) | 0.0037 (7) | 0.0072 (7) |
| O6W | 0.0440 (10) | 0.0748 (13) | 0.0481 (10) | 0.0035 (9) | 0.0002 (8) | 0.0117 (9) |
| O7W | 0.0524 (11) | 0.0463 (11) | 0.0631 (12) | −0.0002 (8) | 0.0013 (9) | −0.0084 (9) |
| N1 | 0.0277 (9) | 0.0406 (10) | 0.0261 (8) | 0.0068 (7) | −0.0006 (7) | 0.0023 (7) |
| C1 | 0.0198 (9) | 0.0282 (11) | 0.0222 (9) | −0.0003 (7) | 0.0024 (8) | −0.0009 (8) |
| C2 | 0.0238 (10) | 0.0211 (9) | 0.0220 (9) | 0.0001 (7) | 0.0019 (7) | 0.0007 (7) |
| C4 | 0.0232 (10) | 0.0298 (11) | 0.0272 (10) | 0.0027 (8) | 0.0051 (8) | 0.0024 (8) |
| C7 | 0.0243 (10) | 0.0309 (11) | 0.0256 (10) | 0.0041 (8) | −0.0010 (8) | 0.0030 (8) |
| C6 | 0.0320 (11) | 0.0356 (12) | 0.0211 (9) | 0.0039 (9) | 0.0008 (8) | 0.0007 (8) |
| C5 | 0.0287 (11) | 0.0336 (11) | 0.0237 (10) | 0.0043 (9) | 0.0065 (8) | −0.0023 (8) |
| C3 | 0.0236 (10) | 0.0219 (10) | 0.0262 (10) | 0.0022 (7) | 0.0033 (8) | 0.0017 (8) |
| C8 | 0.0243 (10) | 0.0282 (10) | 0.0258 (9) | 0.0057 (8) | 0.0055 (8) | 0.0005 (8) |
| Mn1—O1 | 2.1435 (15) | O5W—H5WB | 0.8207 |
| Mn1—O3W | 2.1548 (16) | O6W—H6WA | 0.8708 |
| Mn1—O1W | 2.1657 (17) | O6W—H6WB | 0.8656 |
| Mn1—O5W | 2.1683 (15) | O7W—H7WB | 0.9061 |
| Mn1—O4W | 2.2108 (14) | O7W—H7WA | 0.8666 |
| Mn1—O2W | 2.2119 (16) | N1—N1i | 1.245 (3) |
| O1—C1 | 1.253 (2) | N1—C7 | 1.427 (3) |
| O2—C1 | 1.254 (2) | C1—C2 | 1.513 (3) |
| O3—C4 | 1.251 (2) | C2—C8 | 1.385 (3) |
| O4—C4 | 1.259 (2) | C2—C3 | 1.405 (3) |
| O1W—H1WA | 0.8156 | C4—C3 | 1.503 (3) |
| O1W—H1WB | 0.8230 | C7—C6 | 1.389 (3) |
| O2W—H2WA | 0.8145 | C7—C8 | 1.397 (3) |
| O2W—H2WB | 0.8008 | C6—C5 | 1.382 (3) |
| O3W—H3WB | 0.8259 | C6—H6 | 0.9300 |
| O3W—H3WA | 0.8120 | C5—C3 | 1.393 (3) |
| O4W—H4WA | 0.8148 | C5—H5 | 0.9300 |
| O4W—H4WB | 0.8151 | C8—H8 | 0.9300 |
| O5W—H5WA | 0.8240 | ||
| O1—Mn1—O3W | 176.04 (7) | Mn1—O5W—H5WB | 120.3 |
| O1—Mn1—O1W | 88.39 (6) | H5WA—O5W—H5WB | 102.9 |
| O3W—Mn1—O1W | 89.24 (7) | H6WA—O6W—H6WB | 104.4 |
| O1—Mn1—O5W | 90.78 (6) | H7WB—O7W—H7WA | 103.9 |
| O3W—Mn1—O5W | 92.65 (7) | N1i—N1—C7 | 115.7 (2) |
| O1W—Mn1—O5W | 96.88 (7) | O1—C1—O2 | 124.37 (18) |
| O1—Mn1—O4W | 89.55 (6) | O1—C1—C2 | 117.65 (16) |
| O3W—Mn1—O4W | 92.55 (6) | O2—C1—C2 | 117.72 (16) |
| O1W—Mn1—O4W | 174.90 (6) | C8—C2—C3 | 119.93 (17) |
| O5W—Mn1—O4W | 87.82 (6) | C8—C2—C1 | 116.82 (17) |
| O1—Mn1—O2W | 88.49 (6) | C3—C2—C1 | 123.04 (17) |
| O3W—Mn1—O2W | 88.24 (7) | O3—C4—O4 | 125.04 (18) |
| O1W—Mn1—O2W | 87.31 (7) | O3—C4—C3 | 117.63 (17) |
| O5W—Mn1—O2W | 175.73 (6) | O4—C4—C3 | 117.32 (18) |
| O4W—Mn1—O2W | 87.97 (6) | C6—C7—C8 | 120.53 (18) |
| C1—O1—Mn1 | 145.33 (14) | C6—C7—N1 | 116.47 (17) |
| Mn1—O1W—H1WA | 130.9 | C8—C7—N1 | 122.95 (17) |
| Mn1—O1W—H1WB | 120.0 | C5—C6—C7 | 119.41 (18) |
| H1WA—O1W—H1WB | 104.8 | C5—C6—H6 | 120.3 |
| Mn1—O2W—H2WA | 118.9 | C7—C6—H6 | 120.3 |
| Mn1—O2W—H2WB | 134.5 | C6—C5—C3 | 120.97 (18) |
| H2WA—O2W—H2WB | 106.2 | C6—C5—H5 | 119.5 |
| Mn1—O3W—H3WB | 114.5 | C3—C5—H5 | 119.5 |
| Mn1—O3W—H3WA | 132.9 | C5—C3—C2 | 119.30 (18) |
| H3WB—O3W—H3WA | 103.8 | C5—C3—C4 | 118.84 (17) |
| Mn1—O4W—H4WA | 125.8 | C2—C3—C4 | 121.84 (17) |
| Mn1—O4W—H4WB | 116.8 | C2—C8—C7 | 119.84 (18) |
| H4WA—O4W—H4WB | 105.8 | C2—C8—H8 | 120.1 |
| Mn1—O5W—H5WA | 129.4 | C7—C8—H8 | 120.1 |
| Symmetry codes: (i) −x+1, −y+1, −z+1. |
| D—H···A | D—H | H···A | D···A | D—H···A |
| O1W—H1WA···O7W | 0.82 | 1.95 | 2.760 (3) | 170 |
| O1W—H1WB···O4 | 0.82 | 1.85 | 2.675 (2) | 176 |
| O2W—H2WA···O4Wii | 0.81 | 2.16 | 2.948 (2) | 163 |
| O2W—H2WA···O1ii | 0.81 | 2.64 | 3.061 (2) | 114 |
| O2W—H2WB···O1Wiii | 0.80 | 2.63 | 3.293 (3) | 142 |
| O3W—H3WB···O6W | 0.83 | 2.00 | 2.818 (2) | 171 |
| O3W—H3WA···O3iv | 0.81 | 1.89 | 2.696 (2) | 172 |
| O4W—H4WA···O2ii | 0.81 | 2.00 | 2.8162 (19) | 174 |
| O4W—H4WB···O3v | 0.82 | 1.94 | 2.758 (2) | 178 |
| O5W—H5WA···O2v | 0.82 | 1.95 | 2.759 (2) | 169 |
| O5W—H5WB···O7Wvi | 0.82 | 1.93 | 2.744 (2) | 173 |
| O6W—H6WA···O4iii | 0.87 | 1.81 | 2.677 (2) | 174 |
| O6W—H6WB···O2ii | 0.87 | 2.03 | 2.894 (2) | 175 |
| O7W—H7WB···N1vii | 0.91 | 1.96 | 2.859 (3) | 174 |
| O7W—H7WA···O6Wviii | 0.87 | 1.92 | 2.780 (3) | 169 |
| Symmetry codes: (ii) −x+2, −y+1, −z+2; (iii) −x+3, −y+1, −z+2; (iv) −x+3, y+1/2, −z+3/2; (v) −x+2, y+1/2, −z+3/2; (vi) x−1, y, z; (vii) −x+2, −y+1, −z+1; (viii) x, −y+3/2, z−1/2. |
| D—H···A | D—H | H···A | D···A | D—H···A |
| O1W—H1WA···O7W | 0.82 | 1.95 | 2.760 (3) | 170 |
| O1W—H1WB···O4 | 0.82 | 1.85 | 2.675 (2) | 176 |
| O2W—H2WA···O4Wi | 0.81 | 2.16 | 2.948 (2) | 163 |
| O2W—H2WA···O1i | 0.81 | 2.64 | 3.061 (2) | 114 |
| O2W—H2WB···O1Wii | 0.80 | 2.63 | 3.293 (3) | 142 |
| O3W—H3WB···O6W | 0.83 | 2.00 | 2.818 (2) | 171 |
| O3W—H3WA···O3iii | 0.81 | 1.89 | 2.696 (2) | 172 |
| O4W—H4WA···O2i | 0.81 | 2.00 | 2.8162 (19) | 174 |
| O4W—H4WB···O3iv | 0.82 | 1.94 | 2.758 (2) | 178 |
| O5W—H5WA···O2iv | 0.82 | 1.95 | 2.759 (2) | 169 |
| O5W—H5WB···O7Wv | 0.82 | 1.93 | 2.744 (2) | 173 |
| O6W—H6WA···O4ii | 0.87 | 1.81 | 2.677 (2) | 174 |
| O6W—H6WB···O2i | 0.87 | 2.03 | 2.894 (2) | 175 |
| O7W—H7WB···N1vi | 0.91 | 1.96 | 2.859 (3) | 174 |
| O7W—H7WA···O6Wvii | 0.87 | 1.92 | 2.780 (3) | 169 |
| Symmetry codes: (i) −x+2, −y+1, −z+2; (ii) −x+3, −y+1, −z+2; (iii) −x+3, y+1/2, −z+3/2; (iv) −x+2, y+1/2, −z+3/2; (v) x−1, y, z; (vi) −x+2, −y+1, −z+1; (vii) x, −y+3/2, z−1/2. |
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Transition metal complexes with bipyridine derivatives are suitable models for the study of excited state dynamics. In addition, they are of interest for the development of light-energy conversion devices and optical sensors (Gokel et al., 2004; Shan et al., 2001; Lassahn et al., 2004). Although a great number of metal carboxylate have been obtained to date, the rational design and synthesis of novel metal carboxylates by employing new synthetic tools or by varying the natures of the reactants and synthetic conditions are currently under active investigation (Liu & Xu, 2005). In this context, L ligand which can exhibit a variety of coordination abilities and has a tendency to form architectures with multi-dimensional frameworks (Wang et al., 2007). In this paper, we report the synthesis and crystal structure of the title complex,(I).
The title complex (I) is arranged around a crystallographic inversion center located in the middle of the N=N bond. The metal ion is octahedrally coordinated by the oxygen atom of the carboxylate group [Mn-Ocarboxylate =2.143 (4)° A]and five coordinated water molecules. Two delocalized carboxyl –CO2 groups are each connected via monodentate fashion to two similar pentaaquamanganese units whereas the other two localized carboxyl –CO2 are free. The architecture is further consolidated by extensive hydrogen bonds for which the water molecules serves as donors or acceptors (Table 1).