metal-organic compounds
cis-Tetraaquabis{5-[4-(1H-imidazol-1-yl-κN3)phenyl]tetrazolido}manganese(II) dihydrate
aCollege of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, People's Republic of China, bCollege of Science, Guangdong Ocean University, Zhanjiang 524088, People's Republic of China, and cSchool of Enviroment Science and Engineering, Donghua University, Shanghai 200051, People's Republic of China
*Correspondence e-mail: songwd60@163.com
In the title compound, [Mn(C10H7N6)2(H2O)4]·2H2O, the Mn2+ lies on a twofold rotation axis and is six-coordinated by two N atoms from the cis-related monodentate 5-[4-(imidazol-1-yl)phenyl]tetrazolide ligands and four O atoms from the coordinated water molecules. The complex molecules are connected via water O—H⋯O and O—H⋯N hydrogen bonds and weak π–π stacking interactions between the benzene rings [minimum ring centroid separation = 3.750 (6) Å] into a three-dimensional polymeric structure. The imidazolyl group of the ligand is partially disordered over two sets of sites with refined occupancies of 0.531 (7):0.469 (7).
Related literature
For our previous work based on imidazole derivatives as ligands, see: Li, Song et al. (2011); Li, Ma et al. (2011); Fan et al. (2010); Li et al. (2010). For related structures, see: Huang et al. (2009); Cheng (2011). An independent determination of the title structure is reported by Wang et al. (2012).
Experimental
Crystal data
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Refinement
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Data collection: RAPID-AUTO (Rigaku/MSC, 1998); cell RAPID-AUTO; data reduction: CrystalStructure (Rigaku/MSC, 2002); 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: SHELXTL.
Supporting information
10.1107/S1600536812010446/zs2182sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536812010446/zs2182Isup2.hkl
A mixture of manganese(II) chloride (0.1 mmol, 0.020 g) and 5-[4-(imidazol-1-yl)phenyl]tetrazole (1-tetrazole-4-imidazole-benzene) (0.2 mmol, 0.043 g) in 15 ml of water was sealed in an autoclave equipped with a Teflon liner (25 ml) and then heated at 413 K for 3 days. Crystals of the title compound were obtained by slow evaporation of the solvent at room temperature.
H atoms of the water molecule were located in a difference-Fourier map and refined as riding with an O—H distance restraint of 0.85 Å, with Uiso(H) = 1.5 Ueq. The imidazolyl and phenyl H atoms were located in a difference-Fourier but were refined as riding with C—H = 0.93 Å and Uiso(H) = 1.5Ueq(C). The imidazolyl groups of the ligand are partially disordered over two sets of sites (C2, C2' and C3, C3') with refined occupancies of 0.531 (7) : 0.469 (7).
In recent years, our research group has shown great interest in the design and synthesis of interesting metal–organic comlexes with imidazole derivatives such as 2-propyl-imidazole-4,5-dicarboxylic acid (Fan et al., 2010; Li et al., 2010) and 2-ethyl-1H-imidazole-4,5-dicarboxylic acid (Li, Song et al., 2011; Li, Ma et al., 2011). In this paper, we report the synthesis and structure of a new MnII complex, [Mn(C10H7N6)2(H2O)4] . 2(H2O) and the structure is reported here.
As shown in the Fig. 1, the title complex molecule comprises the Mn2+ ion which lies on a crystallographic twofold rotation axis and is six-coordinated by two N atoms from the cis-related monodentate 5-[4-(imidazol-1-yl)phenyl]tetrazolide ligands and four O atoms from the coordinated water molecules. The complex has a slightly distorted octahedral geometry [Mn—N = 2.256 (4) Å; Mn—O = 2.177 (3) and 2.204 (3) Å]. In the π–π stacking interactions between benzene rings [minimum ring centroid distance, 3.750 (6) Å]. The atoms C2 and C3 of the imidazolyl ring of the ligand are disordered over two sites (C2' and C3') with refined occupancies of 0.531 (7):0.469 (7), respectively. The structure of the anhydrous trans isomer of this complex has previosly been reported (Cheng, 2011).
the complex molecules are connected via water O—H···O and O—H···N hydrogen bonds (Table 1) into a three-dimensional supramolecular structure which is further stabilized by weakFor our previous work based on imidazole derivatives as ligands, see: Li, Song et al. (2011); Li, Ma et al. (2011); Fan et al. (2010); Li et al. (2010). For related structures, see: Huang et al. (2009); Cheng (2011). An independent determination of the title structure is reported by Wang et al. (2012).
Data collection: RAPID-AUTO (Rigaku/MSC, 1998); cell
RAPID-AUTO (Rigaku/MSC, 1998); data reduction: CrystalStructure (Rigaku/MSC, 2002); 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: SHELXTL (Sheldrick, 2008).Fig. 1. The molecular configuration and atom numbering scheme of the title compound, with non-H atoms shown as 30% probability displacement ellipsoids. For symmetry code (i): -x + 1, y, -z + 3/2. |
[Mn(C10H7N6)2(H2O)4]·2H2O | F(000) = 1212 |
Mr = 585.47 | Dx = 1.531 Mg m−3 |
Monoclinic, C2/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -C 2yc | Cell parameters from 3180 reflections |
a = 19.1342 (18) Å | θ = 3.1–30.0° |
b = 13.2100 (4) Å | µ = 0.58 mm−1 |
c = 13.3280 (13) Å | T = 294 K |
β = 131.056 (2)° | Block, colourless |
V = 2540.3 (4) Å3 | 0.80 × 0.11 × 0.10 mm |
Z = 4 |
Rigaku/MSC Mercury CCD diffractometer | 2239 independent reflections |
Radiation source: fine-focus sealed tube | 1957 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.042 |
ω scans | θmax = 25.0°, θmin = 3.1° |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | h = −22→22 |
Tmin = 0.653, Tmax = 0.944 | k = −15→15 |
8421 measured reflections | l = −15→15 |
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)] = 0.056 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.142 | H-atom parameters constrained |
S = 1.31 | w = 1/[σ2(Fo2) + (0.0076P)2 + 23.3787P] where P = (Fo2 + 2Fc2)/3 |
2239 reflections | (Δ/σ)max < 0.001 |
196 parameters | Δρmax = 0.34 e Å−3 |
512 restraints | Δρmin = −0.55 e Å−3 |
[Mn(C10H7N6)2(H2O)4]·2H2O | V = 2540.3 (4) Å3 |
Mr = 585.47 | Z = 4 |
Monoclinic, C2/c | Mo Kα radiation |
a = 19.1342 (18) Å | µ = 0.58 mm−1 |
b = 13.2100 (4) Å | T = 294 K |
c = 13.3280 (13) Å | 0.80 × 0.11 × 0.10 mm |
β = 131.056 (2)° |
Rigaku/MSC Mercury CCD diffractometer | 2239 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | 1957 reflections with I > 2σ(I) |
Tmin = 0.653, Tmax = 0.944 | Rint = 0.042 |
8421 measured reflections |
R[F2 > 2σ(F2)] = 0.056 | 512 restraints |
wR(F2) = 0.142 | H-atom parameters constrained |
S = 1.31 | w = 1/[σ2(Fo2) + (0.0076P)2 + 23.3787P] where P = (Fo2 + 2Fc2)/3 |
2239 reflections | Δρmax = 0.34 e Å−3 |
196 parameters | Δρmin = −0.55 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 | Occ. (<1) | |
Mn1 | 0.5000 | 0.14050 (7) | 0.7500 | 0.0114 (2) | |
N1 | 0.4195 (3) | 0.3148 (3) | 0.9401 (4) | 0.0197 (8) | |
N2 | 0.4707 (3) | 0.2569 (3) | 0.8420 (4) | 0.0189 (8) | |
N3 | 0.2780 (3) | 0.3910 (3) | 1.2697 (4) | 0.0190 (8) | |
N4 | 0.2668 (3) | 0.3553 (3) | 1.3534 (4) | 0.0201 (8) | |
N5 | 0.2945 (2) | 0.2610 (3) | 1.3831 (3) | 0.0158 (8) | |
N6 | 0.3247 (2) | 0.2320 (3) | 1.3206 (3) | 0.0149 (7) | |
O1 | 0.65066 (19) | 0.1248 (2) | 0.9144 (3) | 0.0164 (7) | |
H1C | 0.6860 | 0.1315 | 0.8971 | 0.020* | |
H1D | 0.6680 | 0.1664 | 0.9757 | 0.020* | |
O2 | 0.5016 (2) | 0.0210 (2) | 0.6390 (3) | 0.0172 (7) | |
H2C | 0.4550 | 0.0260 | 0.5564 | 0.021* | |
H2D | 0.5483 | 0.0045 | 0.6477 | 0.021* | |
O3 | 0.3656 (2) | 0.0306 (2) | 0.3671 (3) | 0.0178 (7) | |
H3D | 0.3190 | −0.0069 | 0.3354 | 0.021* | |
H3E | 0.3466 | 0.0912 | 0.3426 | 0.021* | |
C1 | 0.4461 (3) | 0.2365 (3) | 0.9100 (5) | 0.0227 (10) | |
H1 | 0.4471 | 0.1708 | 0.9362 | 0.027* | |
C2 | 0.4225 (6) | 0.3504 (6) | 0.7794 (8) | 0.0186 (17) | 0.531 (7) |
H2 | 0.4149 | 0.3814 | 0.7102 | 0.022* | 0.531 (7) |
C3 | 0.3898 (6) | 0.3863 (6) | 0.8365 (8) | 0.0184 (17) | 0.531 (7) |
H3 | 0.3553 | 0.4450 | 0.8139 | 0.022* | 0.531 (7) |
C2' | 0.5005 (7) | 0.3579 (7) | 0.8818 (9) | 0.0181 (19) | 0.469 (7) |
H2' | 0.5348 | 0.3938 | 0.8669 | 0.022* | 0.469 (7) |
C3' | 0.4721 (7) | 0.3956 (7) | 0.9450 (9) | 0.0192 (19) | 0.469 (7) |
H3' | 0.4840 | 0.4593 | 0.9828 | 0.023* | 0.469 (7) |
C4 | 0.3907 (3) | 0.3145 (3) | 1.0161 (4) | 0.0148 (8) | |
C5 | 0.3558 (3) | 0.4030 (3) | 1.0259 (4) | 0.0172 (9) | |
H5 | 0.3501 | 0.4616 | 0.9822 | 0.021* | |
C6 | 0.3299 (3) | 0.4027 (3) | 1.1017 (4) | 0.0178 (9) | |
H6 | 0.3060 | 0.4613 | 1.1080 | 0.021* | |
C7 | 0.3392 (3) | 0.3158 (3) | 1.1684 (4) | 0.0133 (8) | |
C8 | 0.3722 (3) | 0.2276 (3) | 1.1547 (4) | 0.0153 (9) | |
H8 | 0.3767 | 0.1684 | 1.1963 | 0.018* | |
C9 | 0.3986 (3) | 0.2275 (3) | 1.0794 (4) | 0.0180 (9) | |
H9 | 0.4216 | 0.1687 | 1.0718 | 0.022* | |
C10 | 0.3140 (3) | 0.3136 (3) | 1.2521 (4) | 0.0139 (9) |
U11 | U22 | U33 | U12 | U13 | U23 | |
Mn1 | 0.0141 (5) | 0.0116 (4) | 0.0135 (5) | 0.000 | 0.0113 (4) | 0.000 |
N1 | 0.031 (2) | 0.0127 (17) | 0.031 (2) | 0.0007 (15) | 0.0271 (18) | −0.0012 (15) |
N2 | 0.026 (2) | 0.0149 (18) | 0.0275 (19) | −0.0026 (16) | 0.0226 (17) | −0.0031 (15) |
N3 | 0.027 (2) | 0.0169 (19) | 0.026 (2) | 0.0046 (16) | 0.0230 (18) | 0.0029 (15) |
N4 | 0.029 (2) | 0.0180 (18) | 0.0255 (19) | 0.0026 (17) | 0.0233 (18) | 0.0018 (16) |
N5 | 0.0204 (19) | 0.0150 (18) | 0.0179 (18) | 0.0006 (15) | 0.0152 (16) | 0.0009 (14) |
N6 | 0.0191 (18) | 0.0152 (18) | 0.0150 (17) | 0.0001 (15) | 0.0132 (15) | 0.0001 (14) |
O1 | 0.0183 (15) | 0.0209 (16) | 0.0174 (15) | −0.0029 (13) | 0.0148 (14) | −0.0036 (13) |
O2 | 0.0157 (16) | 0.0216 (16) | 0.0178 (15) | 0.0008 (13) | 0.0124 (14) | −0.0021 (13) |
O3 | 0.0195 (16) | 0.0145 (15) | 0.0229 (16) | 0.0009 (13) | 0.0155 (14) | −0.0001 (13) |
C1 | 0.038 (3) | 0.015 (2) | 0.031 (2) | 0.0024 (19) | 0.030 (2) | −0.0001 (18) |
C2 | 0.026 (4) | 0.015 (4) | 0.024 (4) | 0.001 (3) | 0.020 (3) | 0.001 (3) |
C3 | 0.025 (4) | 0.012 (3) | 0.026 (4) | 0.002 (3) | 0.020 (3) | 0.001 (3) |
C2' | 0.028 (4) | 0.013 (4) | 0.024 (4) | −0.006 (3) | 0.022 (3) | −0.003 (3) |
C3' | 0.026 (4) | 0.018 (4) | 0.024 (4) | −0.003 (3) | 0.021 (3) | −0.001 (3) |
C4 | 0.015 (2) | 0.017 (2) | 0.019 (2) | −0.0056 (16) | 0.0138 (17) | −0.0053 (16) |
C5 | 0.024 (2) | 0.013 (2) | 0.021 (2) | −0.0015 (17) | 0.0177 (18) | 0.0002 (17) |
C6 | 0.022 (2) | 0.016 (2) | 0.024 (2) | 0.0031 (17) | 0.0188 (19) | −0.0001 (17) |
C7 | 0.014 (2) | 0.016 (2) | 0.0128 (19) | 0.0001 (16) | 0.0102 (17) | −0.0004 (16) |
C8 | 0.018 (2) | 0.013 (2) | 0.0155 (19) | −0.0002 (17) | 0.0114 (17) | 0.0010 (16) |
C9 | 0.021 (2) | 0.017 (2) | 0.023 (2) | 0.0031 (17) | 0.0173 (18) | −0.0016 (17) |
C10 | 0.014 (2) | 0.0125 (19) | 0.016 (2) | 0.0001 (16) | 0.0098 (17) | −0.0007 (16) |
Mn1—O2i | 2.177 (3) | O2—H2D | 0.8500 |
Mn1—O2 | 2.177 (3) | O3—H3D | 0.8500 |
Mn1—O1 | 2.204 (3) | O3—H3E | 0.8499 |
Mn1—O1i | 2.204 (3) | C1—H1 | 0.9300 |
Mn1—N2 | 2.256 (4) | C2—C3 | 1.349 (11) |
Mn1—N2i | 2.256 (4) | C2—H2 | 0.9300 |
N1—C1 | 1.327 (6) | C3—H3 | 0.9300 |
N1—C4 | 1.436 (5) | C2'—C3' | 1.361 (12) |
N1—C3' | 1.438 (10) | C2'—H2' | 0.9300 |
N1—C3 | 1.446 (9) | C3'—H3' | 0.9300 |
N2—C1 | 1.293 (5) | C4—C9 | 1.374 (6) |
N2—C2' | 1.410 (10) | C4—C5 | 1.393 (6) |
N2—C2 | 1.436 (9) | C5—C6 | 1.389 (6) |
N3—C10 | 1.336 (5) | C5—H5 | 0.9300 |
N3—N4 | 1.352 (5) | C6—C7 | 1.390 (6) |
N4—N5 | 1.309 (5) | C6—H6 | 0.9300 |
N5—N6 | 1.346 (5) | C7—C8 | 1.393 (6) |
N6—C10 | 1.338 (5) | C7—C10 | 1.478 (5) |
O1—H1C | 0.8500 | C8—C9 | 1.388 (6) |
O1—H1D | 0.8501 | C8—H8 | 0.9300 |
O2—H2C | 0.8500 | C9—H9 | 0.9300 |
O2i—Mn1—O2 | 87.07 (16) | H3D—O3—H3E | 108.3 |
O2i—Mn1—O1 | 81.34 (11) | N2—C1—N1 | 115.9 (4) |
O2—Mn1—O1 | 90.81 (11) | N2—C1—H1 | 122.0 |
O2i—Mn1—O1i | 90.81 (11) | N1—C1—H1 | 122.0 |
O2—Mn1—O1i | 81.34 (11) | C3—C2—N2 | 109.5 (7) |
O1—Mn1—O1i | 169.20 (16) | C3—C2—H2 | 125.3 |
O2i—Mn1—N2 | 90.29 (12) | N2—C2—H2 | 125.3 |
O2—Mn1—N2 | 169.50 (12) | C2—C3—N1 | 105.8 (7) |
O1—Mn1—N2 | 98.84 (12) | C2—C3—H3 | 127.1 |
O1i—Mn1—N2 | 88.54 (12) | N1—C3—H3 | 127.1 |
O2i—Mn1—N2i | 169.50 (12) | C3'—C2'—N2 | 110.6 (7) |
O2—Mn1—N2i | 90.29 (12) | C3'—C2'—H2' | 124.7 |
O1—Mn1—N2i | 88.54 (12) | N2—C2'—H2' | 124.7 |
O1i—Mn1—N2i | 98.84 (12) | C2'—C3'—N1 | 104.6 (7) |
N2—Mn1—N2i | 94.05 (18) | C2'—C3'—H3' | 127.7 |
C1—N1—C4 | 127.8 (4) | N1—C3'—H3' | 127.7 |
C1—N1—C3' | 101.3 (5) | C9—C4—C5 | 120.7 (4) |
C4—N1—C3' | 123.5 (5) | C9—C4—N1 | 119.8 (4) |
C1—N1—C3 | 102.0 (4) | C5—C4—N1 | 119.5 (4) |
C4—N1—C3 | 125.7 (4) | C6—C5—C4 | 119.2 (4) |
C3'—N1—C3 | 51.9 (5) | C6—C5—H5 | 120.4 |
C1—N2—C2' | 100.2 (5) | C4—C5—H5 | 120.4 |
C1—N2—C2 | 101.3 (4) | C5—C6—C7 | 120.8 (4) |
C2'—N2—C2 | 49.6 (5) | C5—C6—H6 | 119.6 |
C1—N2—Mn1 | 125.0 (3) | C7—C6—H6 | 119.6 |
C2'—N2—Mn1 | 131.7 (4) | C6—C7—C8 | 119.0 (4) |
C2—N2—Mn1 | 124.4 (4) | C6—C7—C10 | 122.0 (4) |
C10—N3—N4 | 104.9 (3) | C8—C7—C10 | 119.0 (4) |
N5—N4—N3 | 109.2 (3) | C9—C8—C7 | 120.5 (4) |
N4—N5—N6 | 109.8 (3) | C9—C8—H8 | 119.7 |
C10—N6—N5 | 104.8 (3) | C7—C8—H8 | 119.7 |
Mn1—O1—H1C | 118.3 | C4—C9—C8 | 119.8 (4) |
Mn1—O1—H1D | 108.9 | C4—C9—H9 | 120.1 |
H1C—O1—H1D | 108.4 | C8—C9—H9 | 120.1 |
Mn1—O2—H2C | 110.6 | N3—C10—N6 | 111.3 (4) |
Mn1—O2—H2D | 125.2 | N3—C10—C7 | 125.3 (4) |
H2C—O2—H2D | 108.1 | N6—C10—C7 | 123.4 (4) |
O2i—Mn1—N2—C1 | −11.2 (4) | C1—N2—C2'—C3' | −13.7 (9) |
O2—Mn1—N2—C1 | 64.1 (9) | C2—N2—C2'—C3' | 82.6 (9) |
O1—Mn1—N2—C1 | −92.5 (4) | Mn1—N2—C2'—C3' | −173.9 (5) |
O1i—Mn1—N2—C1 | 79.6 (4) | N2—C2'—C3'—N1 | −1.9 (10) |
N2i—Mn1—N2—C1 | 178.3 (5) | C1—N1—C3'—C2' | 16.4 (8) |
O2i—Mn1—N2—C2' | 144.8 (6) | C4—N1—C3'—C2' | 168.1 (6) |
O2—Mn1—N2—C2' | −139.8 (8) | C3—N1—C3'—C2' | −80.2 (8) |
O1—Mn1—N2—C2' | 63.5 (6) | C1—N1—C4—C9 | 7.3 (7) |
O1i—Mn1—N2—C2' | −124.4 (6) | C3'—N1—C4—C9 | −136.7 (6) |
N2i—Mn1—N2—C2' | −25.6 (6) | C3—N1—C4—C9 | 159.1 (5) |
O2i—Mn1—N2—C2 | −151.5 (5) | C1—N1—C4—C5 | −173.4 (5) |
O2—Mn1—N2—C2 | −76.1 (9) | C3'—N1—C4—C5 | 42.6 (7) |
O1—Mn1—N2—C2 | 127.2 (5) | C3—N1—C4—C5 | −21.6 (7) |
O1i—Mn1—N2—C2 | −60.7 (5) | C9—C4—C5—C6 | 0.6 (7) |
N2i—Mn1—N2—C2 | 38.1 (4) | N1—C4—C5—C6 | −178.7 (4) |
C10—N3—N4—N5 | −0.3 (5) | C4—C5—C6—C7 | 0.6 (7) |
N3—N4—N5—N6 | 0.1 (5) | C5—C6—C7—C8 | −2.0 (7) |
N4—N5—N6—C10 | 0.2 (4) | C5—C6—C7—C10 | 178.7 (4) |
C2'—N2—C1—N1 | 27.0 (6) | C6—C7—C8—C9 | 2.3 (6) |
C2—N2—C1—N1 | −23.5 (6) | C10—C7—C8—C9 | −178.5 (4) |
Mn1—N2—C1—N1 | −170.9 (3) | C5—C4—C9—C8 | −0.4 (7) |
C4—N1—C1—N2 | −178.7 (4) | N1—C4—C9—C8 | 178.9 (4) |
C3'—N1—C1—N2 | −28.7 (6) | C7—C8—C9—C4 | −1.0 (7) |
C3—N1—C1—N2 | 24.4 (6) | N4—N3—C10—N6 | 0.5 (5) |
C1—N2—C2—C3 | 12.3 (8) | N4—N3—C10—C7 | −179.7 (4) |
C2'—N2—C2—C3 | −81.5 (8) | N5—N6—C10—N3 | −0.4 (5) |
Mn1—N2—C2—C3 | 160.0 (5) | N5—N6—C10—C7 | 179.7 (4) |
N2—C2—C3—N1 | 1.1 (9) | C6—C7—C10—N3 | 2.2 (7) |
C1—N1—C3—C2 | −13.8 (7) | C8—C7—C10—N3 | −177.1 (4) |
C4—N1—C3—C2 | −171.3 (5) | C6—C7—C10—N6 | −178.0 (4) |
C3'—N1—C3—C2 | 81.2 (8) | C8—C7—C10—N6 | 2.8 (6) |
Symmetry code: (i) −x+1, y, −z+3/2. |
D—H···A | D—H | H···A | D···A | D—H···A |
O3—H3E···N5ii | 0.85 | 2.65 | 3.397 (4) | 147 |
O3—H3E···N6ii | 0.85 | 1.89 | 2.726 (4) | 169 |
O3—H3D···N4iii | 0.85 | 2.63 | 3.261 (5) | 132 |
O3—H3D···N3iii | 0.85 | 1.95 | 2.774 (5) | 162 |
O2—H2D···O3iv | 0.85 | 1.84 | 2.684 (4) | 170 |
O2—H2C···O3 | 0.85 | 1.90 | 2.745 (4) | 170 |
O1—H1D···N5v | 0.85 | 1.96 | 2.811 (4) | 179 |
O1—H1C···N5vi | 0.85 | 2.62 | 3.396 (4) | 152 |
O1—H1C···N4vi | 0.85 | 1.99 | 2.835 (4) | 179 |
Symmetry codes: (ii) x, y, z−1; (iii) −x+1/2, y−1/2, −z+3/2; (iv) −x+1, −y, −z+1; (v) −x+1, y, −z+5/2; (vi) x+1/2, −y+1/2, z−1/2. |
Experimental details
Crystal data | |
Chemical formula | [Mn(C10H7N6)2(H2O)4]·2H2O |
Mr | 585.47 |
Crystal system, space group | Monoclinic, C2/c |
Temperature (K) | 294 |
a, b, c (Å) | 19.1342 (18), 13.2100 (4), 13.3280 (13) |
β (°) | 131.056 (2) |
V (Å3) | 2540.3 (4) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.58 |
Crystal size (mm) | 0.80 × 0.11 × 0.10 |
Data collection | |
Diffractometer | Rigaku/MSC Mercury CCD |
Absorption correction | Multi-scan (SADABS; Sheldrick, 1996) |
Tmin, Tmax | 0.653, 0.944 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 8421, 2239, 1957 |
Rint | 0.042 |
(sin θ/λ)max (Å−1) | 0.595 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.056, 0.142, 1.31 |
No. of reflections | 2239 |
No. of parameters | 196 |
No. of restraints | 512 |
H-atom treatment | H-atom parameters constrained |
w = 1/[σ2(Fo2) + (0.0076P)2 + 23.3787P] where P = (Fo2 + 2Fc2)/3 | |
Δρmax, Δρmin (e Å−3) | 0.34, −0.55 |
Computer programs: RAPID-AUTO (Rigaku/MSC, 1998), CrystalStructure (Rigaku/MSC, 2002), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
O3—H3E···N5i | 0.85 | 2.65 | 3.397 (4) | 147.3 |
O3—H3E···N6i | 0.85 | 1.89 | 2.726 (4) | 169.3 |
O3—H3D···N4ii | 0.85 | 2.63 | 3.261 (5) | 132.2 |
O3—H3D···N3ii | 0.85 | 1.95 | 2.774 (5) | 162.1 |
O2—H2D···O3iii | 0.85 | 1.84 | 2.684 (4) | 169.5 |
O2—H2C···O3 | 0.85 | 1.90 | 2.745 (4) | 169.7 |
O1—H1D···N5iv | 0.85 | 1.96 | 2.811 (4) | 178.6 |
O1—H1C···N5v | 0.85 | 2.62 | 3.396 (4) | 152.1 |
O1—H1C···N4v | 0.85 | 1.99 | 2.835 (4) | 178.6 |
Symmetry codes: (i) x, y, z−1; (ii) −x+1/2, y−1/2, −z+3/2; (iii) −x+1, −y, −z+1; (iv) −x+1, y, −z+5/2; (v) x+1/2, −y+1/2, z−1/2. |
Acknowledgements
We acknowledge the public science and technology research funds projects of ocean (grant No. 2000905021), the Guangdong Oceanic Fisheries Technology Promotion Project [grant No. A2009003?018(c)], the Guangdong Chinese Academy of Science comprehensive strategic cooperation project (grant No. 2009B091300121) and the Guangdong Province key project in the field of social development [grant No. A2009011-007(c)].
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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.
In recent years, our research group has shown great interest in the design and synthesis of interesting metal–organic comlexes with imidazole derivatives such as 2-propyl-imidazole-4,5-dicarboxylic acid (Fan et al., 2010; Li et al., 2010) and 2-ethyl-1H-imidazole-4,5-dicarboxylic acid (Li, Song et al., 2011; Li, Ma et al., 2011). In this paper, we report the synthesis and structure of a new MnII complex, [Mn(C10H7N6)2(H2O)4] . 2(H2O) and the structure is reported here.
As shown in the Fig. 1, the title complex molecule comprises the Mn2+ ion which lies on a crystallographic twofold rotation axis and is six-coordinated by two N atoms from the cis-related monodentate 5-[4-(imidazol-1-yl)phenyl]tetrazolide ligands and four O atoms from the coordinated water molecules. The complex has a slightly distorted octahedral geometry [Mn—N = 2.256 (4) Å; Mn—O = 2.177 (3) and 2.204 (3) Å]. In the crystal structure, the complex molecules are connected via water O—H···O and O—H···N hydrogen bonds (Table 1) into a three-dimensional supramolecular structure which is further stabilized by weak π–π stacking interactions between benzene rings [minimum ring centroid distance, 3.750 (6) Å]. The atoms C2 and C3 of the imidazolyl ring of the ligand are disordered over two sites (C2' and C3') with refined occupancies of 0.531 (7):0.469 (7), respectively. The structure of the anhydrous trans isomer of this complex has previosly been reported (Cheng, 2011).