metal-organic compounds
catena-Poly[[[[3-(2-pyridyl)-1H-pyrazole]manganese(II)]-μ-oxalato] sesquihydrate]
aSchool of Chemistry and Life Science, Maoming University, Maoming 525000, People's Republic of China
*Correspondence e-mail: anz_md@163.com
In the title compound, {[Mn(C2O4)(C8H7N3)]·1.5H2O}n, the MnII ion is chelated by two O,O′-bidentate oxalate ions and an N,N′-bidentate 3-(2-pyridyl)pyrazole molecule, resulting in a distorted cis-MnN2O4 octahedral geometry for the metal ion. The bridging oxalate ions generate wave-like polymeric chains propagating in [001]. The packing is consolidated by N—H⋯O and O—H⋯O hydrogen bonds. One of the water O atoms lies on a crystallographic twofold axis.
Related literature
For coordination compounds with pyridyl-pyrazolide ligands, see: Ward et al. (1998, 2001).
Experimental
Crystal data
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Refinement
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Data collection: SMART or APEX2? (Bruker, 2005); cell SAINT (Bruker, 2005); data reduction: SAINT; 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: SHELXL97.
Supporting information
https://doi.org/10.1107/S1600536809044298/hb5162sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536809044298/hb5162Isup2.hkl
A mixture of Mn(CH3COO)2.4H2O (1 mmol), 3-(2-pyridyl)pyrazole (1 mmol), oxalic acid (1 mmol), sodium hydroxide (1 mmol) and H2O (10 ml) was stirred for 30 min in air. The mixture was then transferred to a 25 ml Teflon-lined hydrothermal bomb. The bomb was kept at 433 K for 72 h under autogenous pressure. Upon cooling, pink prisms of (I) were obtained from the reaction mixture.
The C-bound H atoms were geometrically planced (C—H = 0.93/%A) and refined as riding with Uiso = 1.2Ueq(C). The N– and O-bound H atoms were located in difference maps and refined with distance restraints: N—H = 0.97 (1)/%A, O—H = 0.82 (2)/%A, H···H = 1.38 (2)/%A.
The tridentate ligand 3-(2-pyridyl)pyrazole and its derivatives have been used widely in the construction of supramolecular architectures by way of metal-organic coordination (Ward, Fleming et al. 1998; Ward, 2001).
As a continuation of these studies, we now report the
of the title complex, (I).The Mn ion is hexcoordianted, chelated by two oxalate and one 3-(2-pyridyl)pyrazole ligand (Table 1). While each oxalate ligand acts as one bridige to chalate two Mn ions, forming one wave-like line with Mn···Mn distance being 5.652 /%A, shown in Figure 2. The structure is consolidated by N—H···O and O—H···O hydrogen bonds (Table 2, Figure 3).
For coordination compounds with pyridyl-pyrazolide ligands, see: Ward et al. (1998, 2001).
Data collection: SMART (Bruker, 2005); cell
SAINT (Bruker, 2005); data reduction: SAINT (Bruker, 2005); 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: SHELXTL97 (Sheldrick, 2008).[Mn(C2O4)(C8H7N3)]·1.5H2O | F(000) = 1280 |
Mr = 315.15 | Dx = 1.597 Mg m−3 |
Monoclinic, C2/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -C 2yc | Cell parameters from 2634 reflections |
a = 29.460 (8) Å | θ = 2.8–25.4° |
b = 9.236 (3) Å | µ = 1.03 mm−1 |
c = 9.875 (3) Å | T = 296 K |
β = 102.706 (5)° | Block, pink |
V = 2621.0 (13) Å3 | 0.43 × 0.28 × 0.22 mm |
Z = 8 |
Bruker APEXII CCD diffractometer | 2438 independent reflections |
Radiation source: fine-focus sealed tube | 2004 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.020 |
φ and ω scans | θmax = 25.5°, θmin = 2.3° |
Absorption correction: multi-scan (SADABS; Bruker, 2005) | h = −35→35 |
Tmin = 0.665, Tmax = 0.805 | k = −10→11 |
6809 measured reflections | l = −9→11 |
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)] = 0.027 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.078 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.00 | w = 1/[σ2(Fo2) + (0.045P)2 + 0.7224P] where P = (Fo2 + 2Fc2)/3 |
2438 reflections | (Δ/σ)max = 0.001 |
186 parameters | Δρmax = 0.22 e Å−3 |
0 restraints | Δρmin = −0.17 e Å−3 |
[Mn(C2O4)(C8H7N3)]·1.5H2O | V = 2621.0 (13) Å3 |
Mr = 315.15 | Z = 8 |
Monoclinic, C2/c | Mo Kα radiation |
a = 29.460 (8) Å | µ = 1.03 mm−1 |
b = 9.236 (3) Å | T = 296 K |
c = 9.875 (3) Å | 0.43 × 0.28 × 0.22 mm |
β = 102.706 (5)° |
Bruker APEXII CCD diffractometer | 2438 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2005) | 2004 reflections with I > 2σ(I) |
Tmin = 0.665, Tmax = 0.805 | Rint = 0.020 |
6809 measured reflections |
R[F2 > 2σ(F2)] = 0.027 | 0 restraints |
wR(F2) = 0.078 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.00 | Δρmax = 0.22 e Å−3 |
2438 reflections | Δρmin = −0.17 e Å−3 |
186 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 | 0.2903 (2) | 0.3204 (7) | 0.3530 (6) | 0.0620 (16) | |
H1 | 0.2780 | 0.2284 | 0.3594 | 0.074* | |
C2 | 0.2697 (2) | 0.4365 (8) | 0.4029 (7) | 0.0732 (19) | |
H2 | 0.2441 | 0.4229 | 0.4423 | 0.088* | |
C3 | 0.2872 (2) | 0.5721 (8) | 0.3938 (7) | 0.077 (2) | |
H3 | 0.2740 | 0.6518 | 0.4279 | 0.092* | |
C4 | 0.3246 (2) | 0.5889 (7) | 0.3340 (7) | 0.0685 (17) | |
H4 | 0.3367 | 0.6806 | 0.3257 | 0.082* | |
C5 | 0.34421 (19) | 0.4681 (6) | 0.2858 (5) | 0.0483 (13) | |
C6 | 0.3844 (2) | 0.4772 (6) | 0.2209 (6) | 0.0506 (13) | |
C7 | 0.4082 (3) | 0.5950 (7) | 0.1822 (8) | 0.079 (2) | |
H7 | 0.4024 | 0.6926 | 0.1940 | 0.095* | |
C8 | 0.4416 (3) | 0.5372 (7) | 0.1235 (8) | 0.085 (2) | |
H8 | 0.4632 | 0.5886 | 0.0868 | 0.102* | |
C9 | 0.39499 (16) | 0.0253 (5) | 0.5065 (5) | 0.0374 (11) | |
C10 | 0.34569 (16) | −0.0362 (5) | 0.4432 (5) | 0.0367 (11) | |
N1 | 0.32730 (15) | 0.3343 (5) | 0.2955 (5) | 0.0472 (11) | |
N2 | 0.40299 (15) | 0.3533 (4) | 0.1877 (5) | 0.0470 (11) | |
N3 | 0.43793 (17) | 0.3939 (6) | 0.1279 (5) | 0.0628 (13) | |
H3A | 0.4556 | 0.3346 | 0.0965 | 0.075* | |
Mn1 | 0.36805 (2) | 0.14892 (8) | 0.22637 (7) | 0.0395 (3) | |
O1 | 0.41292 (12) | 0.1050 (4) | 0.4304 (4) | 0.0476 (9) | |
O2 | 0.32916 (13) | −0.0076 (4) | 0.3189 (4) | 0.0514 (9) | |
O3 | 0.41261 (12) | −0.0083 (4) | 0.6295 (3) | 0.0477 (9) | |
O4 | 0.32667 (11) | −0.1102 (4) | 0.5215 (3) | 0.0433 (8) | |
O1W | 0.49441 (17) | 0.2150 (6) | 0.0153 (6) | 0.0849 (14) | |
O2W | 0.5000 | 0.8860 (7) | 0.2500 | 0.0754 (19) | |
H1W | 0.5197 (14) | 0.181 (7) | 0.056 (5) | 0.080* | |
H2W | 0.485 (2) | 0.183 (7) | −0.063 (4) | 0.080* | |
H3W | 0.4792 (17) | 0.944 (6) | 0.222 (7) | 0.080* |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.055 (3) | 0.068 (4) | 0.070 (4) | 0.001 (3) | 0.027 (3) | −0.007 (3) |
C2 | 0.054 (4) | 0.092 (5) | 0.080 (5) | 0.015 (4) | 0.028 (3) | −0.012 (4) |
C3 | 0.074 (4) | 0.079 (5) | 0.078 (5) | 0.028 (4) | 0.019 (4) | −0.021 (4) |
C4 | 0.079 (4) | 0.049 (3) | 0.076 (4) | 0.008 (3) | 0.016 (4) | −0.018 (3) |
C5 | 0.054 (3) | 0.043 (3) | 0.046 (3) | 0.004 (2) | 0.007 (2) | −0.007 (2) |
C6 | 0.057 (3) | 0.040 (3) | 0.055 (3) | −0.003 (2) | 0.012 (3) | −0.002 (2) |
C7 | 0.101 (5) | 0.041 (3) | 0.104 (6) | −0.009 (3) | 0.039 (5) | 0.007 (3) |
C8 | 0.091 (5) | 0.065 (4) | 0.112 (6) | −0.022 (4) | 0.047 (5) | 0.013 (4) |
C9 | 0.042 (3) | 0.035 (3) | 0.037 (3) | −0.002 (2) | 0.013 (2) | −0.003 (2) |
C10 | 0.043 (3) | 0.032 (2) | 0.038 (3) | −0.003 (2) | 0.013 (2) | −0.004 (2) |
N1 | 0.048 (2) | 0.046 (3) | 0.051 (3) | 0.0022 (19) | 0.017 (2) | −0.0065 (19) |
N2 | 0.051 (3) | 0.041 (2) | 0.053 (3) | −0.0033 (19) | 0.021 (2) | 0.0016 (19) |
N3 | 0.061 (3) | 0.063 (3) | 0.074 (3) | −0.006 (2) | 0.035 (3) | 0.008 (3) |
Mn1 | 0.0490 (5) | 0.0355 (5) | 0.0370 (5) | 0.0002 (3) | 0.0160 (3) | −0.0001 (3) |
O1 | 0.046 (2) | 0.055 (2) | 0.043 (2) | −0.0140 (16) | 0.0116 (16) | 0.0073 (16) |
O2 | 0.056 (2) | 0.059 (2) | 0.037 (2) | −0.0187 (18) | 0.0051 (16) | 0.0048 (16) |
O3 | 0.046 (2) | 0.057 (2) | 0.039 (2) | −0.0124 (16) | 0.0069 (16) | 0.0062 (16) |
O4 | 0.0449 (19) | 0.0467 (19) | 0.0401 (19) | −0.0105 (15) | 0.0132 (16) | 0.0017 (15) |
O1W | 0.060 (3) | 0.103 (4) | 0.097 (4) | 0.016 (3) | 0.027 (3) | −0.002 (3) |
O2W | 0.047 (4) | 0.069 (4) | 0.102 (5) | 0.000 | −0.002 (4) | 0.000 |
C1—N1 | 1.342 (7) | C9—O3 | 1.250 (6) |
C1—C2 | 1.376 (8) | C9—C10 | 1.557 (7) |
C1—H1 | 0.9300 | C10—O2 | 1.245 (6) |
C2—C3 | 1.365 (10) | C10—O4 | 1.253 (5) |
C2—H2 | 0.9300 | N2—N3 | 1.348 (6) |
C3—C4 | 1.367 (9) | N3—H3A | 0.8600 |
C3—H3 | 0.9300 | Mn1—N1 | 2.280 (4) |
C4—C5 | 1.388 (8) | Mn1—N2 | 2.223 (4) |
C4—H4 | 0.9300 | Mn1—O4i | 2.150 (3) |
C5—N1 | 1.344 (6) | Mn1—O2 | 2.168 (3) |
C5—C6 | 1.468 (8) | Mn1—O1 | 2.191 (4) |
C6—N2 | 1.339 (7) | Mn1—O3i | 2.208 (3) |
C6—C7 | 1.392 (8) | O3—Mn1ii | 2.208 (3) |
C7—C8 | 1.357 (10) | O4—Mn1ii | 2.150 (3) |
C7—H7 | 0.9300 | O1W—H1W | 0.83 (5) |
C8—N3 | 1.329 (8) | O1W—H2W | 0.82 (4) |
C8—H8 | 0.9300 | O2W—H3W | 0.82 (5) |
C9—O1 | 1.250 (6) | ||
N1—C1—C2 | 122.7 (6) | C1—N1—C5 | 117.8 (5) |
N1—C1—H1 | 118.7 | C1—N1—Mn1 | 125.8 (4) |
C2—C1—H1 | 118.7 | C5—N1—Mn1 | 116.2 (3) |
C3—C2—C1 | 119.2 (6) | C6—N2—N3 | 105.2 (4) |
C3—C2—H2 | 120.4 | C6—N2—Mn1 | 117.0 (3) |
C1—C2—H2 | 120.4 | N3—N2—Mn1 | 137.6 (4) |
C2—C3—C4 | 119.0 (6) | C8—N3—N2 | 111.5 (5) |
C2—C3—H3 | 120.5 | C8—N3—H3A | 124.2 |
C4—C3—H3 | 120.5 | N2—N3—H3A | 124.2 |
C3—C4—C5 | 119.5 (6) | O4i—Mn1—O2 | 92.44 (13) |
C3—C4—H4 | 120.3 | O4i—Mn1—O1 | 159.58 (14) |
C5—C4—H4 | 120.3 | O2—Mn1—O1 | 75.93 (13) |
N1—C5—C4 | 121.7 (5) | O4i—Mn1—O3i | 76.27 (12) |
N1—C5—C6 | 115.5 (4) | O2—Mn1—O3i | 102.10 (16) |
C4—C5—C6 | 122.8 (5) | O1—Mn1—O3i | 89.63 (13) |
N2—C6—C7 | 110.1 (5) | O4i—Mn1—N2 | 99.67 (15) |
N2—C6—C5 | 118.1 (4) | O2—Mn1—N2 | 161.17 (16) |
C7—C6—C5 | 131.8 (5) | O1—Mn1—N2 | 96.12 (15) |
C8—C7—C6 | 105.4 (6) | O3i—Mn1—N2 | 94.79 (14) |
C8—C7—H7 | 127.3 | O4i—Mn1—N1 | 100.36 (14) |
C6—C7—H7 | 127.3 | O2—Mn1—N1 | 90.74 (16) |
N3—C8—C7 | 107.8 (6) | O1—Mn1—N1 | 96.58 (15) |
N3—C8—H8 | 126.1 | O3i—Mn1—N1 | 166.79 (15) |
C7—C8—H8 | 126.1 | N2—Mn1—N1 | 73.01 (16) |
O1—C9—O3 | 126.2 (4) | C9—O1—Mn1 | 114.4 (3) |
O1—C9—C10 | 117.0 (4) | C10—O2—Mn1 | 115.4 (3) |
O3—C9—C10 | 116.8 (4) | C9—O3—Mn1ii | 114.0 (3) |
O2—C10—O4 | 126.4 (4) | C10—O4—Mn1ii | 115.7 (3) |
O2—C10—C9 | 116.5 (4) | H1W—O1W—H2W | 114 (4) |
O4—C10—C9 | 117.1 (4) |
Symmetry codes: (i) x, −y, z−1/2; (ii) x, −y, z+1/2. |
D—H···A | D—H | H···A | D···A | D—H···A |
N3—H3A···O1W | 0.86 | 1.89 | 2.748 (7) | 175 |
O1W—H1W···O1iii | 0.83 (5) | 2.08 (4) | 2.851 (6) | 155 (6) |
O1W—H2W···O2Wiv | 0.82 (4) | 2.10 (5) | 2.819 (6) | 148 (6) |
O2W—H3W···O3v | 0.82 (5) | 2.06 (4) | 2.823 (4) | 156 (6) |
Symmetry codes: (iii) −x+1, y, −z+1/2; (iv) −x+1, −y+1, −z; (v) x, −y+1, z−1/2. |
Experimental details
Crystal data | |
Chemical formula | [Mn(C2O4)(C8H7N3)]·1.5H2O |
Mr | 315.15 |
Crystal system, space group | Monoclinic, C2/c |
Temperature (K) | 296 |
a, b, c (Å) | 29.460 (8), 9.236 (3), 9.875 (3) |
β (°) | 102.706 (5) |
V (Å3) | 2621.0 (13) |
Z | 8 |
Radiation type | Mo Kα |
µ (mm−1) | 1.03 |
Crystal size (mm) | 0.43 × 0.28 × 0.22 |
Data collection | |
Diffractometer | Bruker APEXII CCD |
Absorption correction | Multi-scan (SADABS; Bruker, 2005) |
Tmin, Tmax | 0.665, 0.805 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 6809, 2438, 2004 |
Rint | 0.020 |
(sin θ/λ)max (Å−1) | 0.606 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.027, 0.078, 1.00 |
No. of reflections | 2438 |
No. of parameters | 186 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.22, −0.17 |
Computer programs: SMART (Bruker, 2005), SAINT (Bruker, 2005), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008), SHELXTL97 (Sheldrick, 2008).
Mn1—N1 | 2.280 (4) | Mn1—O2 | 2.168 (3) |
Mn1—N2 | 2.223 (4) | Mn1—O1 | 2.191 (4) |
Mn1—O4i | 2.150 (3) | Mn1—O3i | 2.208 (3) |
N2—Mn1—N1 | 73.01 (16) |
Symmetry code: (i) x, −y, z−1/2. |
D—H···A | D—H | H···A | D···A | D—H···A |
N3—H3A···O1W | 0.86 | 1.89 | 2.748 (7) | 175 |
O1W—H1W···O1ii | 0.83 (5) | 2.08 (4) | 2.851 (6) | 155 (6) |
O1W—H2W···O2Wiii | 0.82 (4) | 2.10 (5) | 2.819 (6) | 148 (6) |
O2W—H3W···O3iv | 0.82 (5) | 2.06 (4) | 2.823 (4) | 156 (6) |
Symmetry codes: (ii) −x+1, y, −z+1/2; (iii) −x+1, −y+1, −z; (iv) x, −y+1, z−1/2. |
Acknowledgements
The authors acknowledge financial support from the program for talent introduction in Guangdong Higher Education Institutions and the scientific research start-up funds of talent introduction in Maoming University.
References
Bruker (2005). SMART, SAINT and SADABS. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Ward, M. D., Fleming, J. S., Psillakis, E., Jeffery, J. C. & McCleverty, J. A. (1998). Acta Cryst. C54, 609–612. Web of Science CSD CrossRef CAS IUCr Journals Google Scholar
Ward, M. D., McCleverty, J. A. & Jeffery, J. C. (2001). Coord. Chem. Rev. 222, 251–272. Web of Science CrossRef CAS Google Scholar
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The tridentate ligand 3-(2-pyridyl)pyrazole and its derivatives have been used widely in the construction of supramolecular architectures by way of metal-organic coordination (Ward, Fleming et al. 1998; Ward, 2001).
As a continuation of these studies, we now report the crystal structure of the title complex, (I).
The Mn ion is hexcoordianted, chelated by two oxalate and one 3-(2-pyridyl)pyrazole ligand (Table 1). While each oxalate ligand acts as one bridige to chalate two Mn ions, forming one wave-like line with Mn···Mn distance being 5.652 /%A, shown in Figure 2. The structure is consolidated by N—H···O and O—H···O hydrogen bonds (Table 2, Figure 3).