Diaqua­bis­(5-carb­oxy-2-propyl-1H-imidazole-4-carboxyl­ato-κ2N3,O4)manganese(II) 3.5-hydrate

Li, S.-J.; Miao, D.-L.; Song, W.-D.; Li, S.-H.; Yan, J.-B.

doi:10.1107/S1600536810031612

metal-organic compounds

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ISSN: 2056-9890

Volume 66| Part 9| September 2010| Pages m1096-m1097

https://doi.org/10.1107/S1600536810031612

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Diaquabis(5-carboxy-2-propyl-1H-imidazole-4-carboxylato-κ²N³,O⁴)manganese(II) 3.5-hydrate

Shi-Jie Li,^a Dong-Liang Miao,^a Wen-Dong Song,^b ^* Shi-Hong Li ^c and Jian-Bin Yan ^a

^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 ^cCollege of Medical Laboratory, Hebei North University, Zhangjiakou 075000, People's Republic of China
^*Correspondence e-mail: songwd60@163.com

(Received 23 July 2010; accepted 6 August 2010; online 18 August 2010)

In the title complex, [Mn(C₈H₉N₂O₄)₂(H₂O)₂]·3.5H₂O, the Mn^II cation is six-coordinated by two N,O-bidentate H₂pimda⁻ ligands (H₂pimda⁻ = 5-carboxy-2-propyl-1H-imidazole-4-carboxylate) and two water molecules in a distorted octahedral environment. The complete solid-state structure can be described as a three-dimensional supramolecular framework stabilized by a wide range of O—H⋯O and N—H⋯O hydrogen bonds. The propyl groups of H₂pimda⁻ are disordered over two sets of sites with refined occupancies of 0.759 (5):0.241 (5) and 0.545 (7):0.455 (7).

Related literature

For our previous structural studies of complexes with H₂pimda⁻, see: Yan et al. (2010 ); Li et al. (2010 ); Song et al.(2010 ); He et al. (2010 ); Fan et al. (2010 ).

Experimental

Crystal data

[Mn(C₈H₉N₂O₄)₂(H₂O)₂]·3.5H₂O
M_r = 548.37
Triclinic, $[P \overline 1]$
a = 10.609 (6) Å
b = 10.649 (6) Å
c = 11.424 (7) Å
α = 82.748 (8)°
β = 82.544 (7)°
γ = 86.857 (7)°
V = 1268.5 (13) Å³
Z = 2
Mo Kα radiation
μ = 0.59 mm⁻¹
T = 296 K
0.31 × 0.26 × 0.21 mm

Data collection

Bruker APEXII area-detector diffractometer
Absorption correction: multi-scan (SADABS; Bruker, 2004 ) T_min = 0.838, T_max = 0.886
6656 measured reflections
4508 independent reflections
2551 reflections with I > 2σ(I)
R_int = 0.035

Refinement

R[F² > 2σ(F²)] = 0.059
wR(F²) = 0.152
S = 1.00
4508 reflections
342 parameters
5 restraints
H-atom parameters constrained
Δρ_max = 0.32 e Å⁻³
Δρ_min = −0.33 e Å⁻³

Table 1
Hydrogen-bond geometry (Å, °)

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O1—H1⋯O4	0.82	1.70	2.507 (5)	167
O7—H6⋯O6	0.82	1.64	2.462 (4)	175
N2—H2⋯O4W	0.88	1.88	2.762 (6)	179
N4—H4⋯O6W	0.87	1.90	2.758 (5)	166
O1W—H1W⋯O5Wⁱ	0.85	2.25	2.667 (4)	110
O1W—H2W⋯O8ⁱⁱ	0.85	1.89	2.724 (4)	168
O2W—H3W⋯O8ⁱⁱⁱ	0.85	2.09	2.878 (4)	153
O2W—H4W⋯O2^iv	0.85	1.97	2.791 (4)	163
O3W—H5W⋯O3W^v	0.85	1.48	2.149 (12)	133
O3W—H5W⋯O3^iv	0.85	2.21	2.811 (6)	128
O3W—H6W⋯O3^vi	0.86	1.98	2.793 (7)	157
O4W—H7W⋯O3W	0.85	1.82	2.646 (7)	165
O4W—H8W⋯O7^vii	0.85	2.05	2.897 (5)	176
O5W—H9W⋯O5^vii	0.85	2.09	2.885 (4)	156
O5W—H9W⋯O6^vii	0.85	2.59	3.266 (5)	137
O5W—H10W⋯O4^viii	0.85	1.97	2.804 (4)	166
O6W—H11W⋯O3W^viii	0.85	1.86	2.674 (7)	160
O6W—H12W⋯O5W^ix	0.85	2.26	2.880 (6)	130
Symmetry codes: (i) x+1, y, z-1; (ii) -x+1, -y+1, -z; (iii) x+1, y, z; (iv) -x+2, -y, -z+1; (v) -x+2, -y, -z+2; (vi) x, y, z+1; (vii) -x+1, -y+1, -z+1; (viii) -x+1, -y, -z+1; (ix) x, y, z-1.

Data collection: APEX2 (Bruker, 2004); cell refinement: SAINT (Bruker, 2004); 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

Crystal structure: contains datablocks I, global. DOI: https://doi.org/10.1107/S1600536810031612/jh2190sup1.cif

Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536810031612/jh2190Isup2.hkl

checkCIF report

Comment top

There is considerable interest in the design and synthesis of metal-organic frameworks (MOFs) due to their potential applications in conductivity, luminescence, catalysis, magnetism and sensors as well as fascinating architectures and topologies. 2-propyl-1H-imidazole-4,5-carboxylate(H₃pimda) ligand as one derivative of H₃IDC with efficient N,O-donors has been used to obtain new metal-organic complexes by our research group, such as poly[diaquabis(5-carboxy-2-propyl-1H-imidazole-4-carboxylato-k³ N³, O⁴,O⁵)calcium(II)](Song et al., 2010), [diaquabis(5-carboxy-2-propyl-1H-imidazole-4-carboxylato-k²N³,O⁴) manganese(II)]N,N-dimethylformamide(Yan et al., 2010), [Diaquabis(5-carboxy-2-propyl-1H-imidazole-4-carboxylato-k² N³,O⁴)nickle(II)]N,N-dimethylformamide disolvate(Li et al., 2010), Diaquabis(4-carboxy-2-propyl-1H-imidazole-5-carboxylato- k²N³,O⁴)copper(II) N,N-dimethylformamide disolvate(He et al., 2010) and Diaquabis(5-carboxy-2-propyl-1H-imidazole- 4-carboxylato-k²N³,O⁴)nickle(II) tetrahedrate(Fan et al., 2010). In this paper, we report the structure of a new Mn(II) complex obtained under hydrothermal conditions.

As illustrated in figure 1, the title complex molecule is isomorphous with Ni(II) analog(Fan et al., 2010). Similar structural description applies to the present isomorphous complex. The Mn^II is six-coordinated by two N,O-bidentate H₃pimda anions and two water molecules, and exhibits a distorted octahedral geometry. The carboxylic acid ligand bears a formal charge of -1, and the free carboxylate atoms O1 and O4, O6 and O7 form intramolecular hydrogen bonds, respectively. The dihedral angle between the two imidazole rings is 77.2 (8) %A. In the crystal structure, the three-dimensional supramolecular framework is stabilized by extensive O—H···O and N—H···O hydrogen bonds involving the free water molecules, the coordinated water molecules, the carboxy O atoms and the protonated N atoms of H₃pimda. The propyl groups of H₃pimda are disordered over two sets of sites with refined occupiencies of 0.759 (5):0.241 (5) and 0.545 (7):0.455 (7).

Related literature top

For our past work based on H₃pimda, see: Yan et al. (2010); Li et al. (2010); Song et al.(2010); He et al. (2010); Fan et al. (2010).

Experimental top

A mixture of Mncl₂ (0.5 mmol, 0.06 g) and 2-propyl-1H-imidazole-4,5-dicarboxylic acid(0.5 mmol, 0.99 g) in 15 ml of H₂O solution was sealed in an autoclave equipped with a Teflon liner (20 ml) and then heated at 433k for 4 days. Crystals of the title compound were obtained by slow evaporation of the solvent at room temperature.

Structure description top

For our past work based on H₃pimda, see: Yan et al. (2010); Li et al. (2010); Song et al.(2010); He et al. (2010); Fan et al. (2010).

Computing details top

Data collection: APEXII (Bruker, 2004); cell refinement: SAINT (Bruker, 2004); data reduction: SAINT (Bruker, 2004); 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 (Sheldrick, 2008).

Figures top

Fig. 1. The structure of the title compound, showing the atomic numbering scheme. Non-H atoms are shown with 30% probability displacement ellipsoids.

Diaquabis(5-carboxy-2-propyl-1H-imidazole-4-carboxylato-κ²N³,O⁴)manganese(II) 3.5-hydrate top

Crystal data top

[Mn(C₈H₉N₂O₄)₂(H₂O)₂]·3.5H₂O	Z = 2
M_r = 548.37	F(000) = 572
Triclinic, P1	D_x = 1.436 Mg m⁻³
Hall symbol: -P 1	Mo Kα radiation, λ = 0.71073 Å
a = 10.609 (6) Å	Cell parameters from 3600 reflections
b = 10.649 (6) Å	θ = 1.4–25.0°
c = 11.424 (7) Å	µ = 0.59 mm⁻¹
α = 82.748 (8)°	T = 296 K
β = 82.544 (7)°	Block, colorless
γ = 86.857 (7)°	0.31 × 0.26 × 0.21 mm
V = 1268.5 (13) Å³

Data collection top

Bruker APEXII area-detector diffractometer	4508 independent reflections
Radiation source: fine-focus sealed tube	2551 reflections with I > 2σ(I)
Graphite monochromator	R_int = 0.035
φ and ω scan	θ_max = 25.2°, θ_min = 1.8°
Absorption correction: multi-scan (SADABS; Bruker, 2004)	h = −12→12
T_min = 0.838, T_max = 0.886	k = −12→12
6656 measured reflections	l = −13→10

Refinement top

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)] = 0.059	Hydrogen site location: inferred from neighbouring sites
wR(F²) = 0.152	H-atom parameters constrained
S = 1.00	w = 1/[σ²(F_o²) + (0.0585P)² + 0.2346P] where P = (F_o² + 2F_c²)/3
4508 reflections	(Δ/σ)_max = 0.009
342 parameters	Δρ_max = 0.32 e Å⁻³
5 restraints	Δρ_min = −0.33 e Å⁻³

Crystal data top

[Mn(C₈H₉N₂O₄)₂(H₂O)₂]·3.5H₂O	γ = 86.857 (7)°
M_r = 548.37	V = 1268.5 (13) Å³
Triclinic, P1	Z = 2
a = 10.609 (6) Å	Mo Kα radiation
b = 10.649 (6) Å	µ = 0.59 mm⁻¹
c = 11.424 (7) Å	T = 296 K
α = 82.748 (8)°	0.31 × 0.26 × 0.21 mm
β = 82.544 (7)°

Data collection top

Bruker APEXII area-detector diffractometer	4508 independent reflections
Absorption correction: multi-scan (SADABS; Bruker, 2004)	2551 reflections with I > 2σ(I)
T_min = 0.838, T_max = 0.886	R_int = 0.035
6656 measured reflections

Refinement top

R[F² > 2σ(F²)] = 0.059	5 restraints
wR(F²) = 0.152	H-atom parameters constrained
S = 1.00	Δρ_max = 0.32 e Å⁻³
4508 reflections	Δρ_min = −0.33 e Å⁻³
342 parameters

Special details top

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.

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å²) top

	x	y	z	U_iso*/U_eq	Occ. (<1)
Mn1	0.84879 (6)	0.29330 (6)	0.19294 (6)	0.0505 (2)
O1	0.8746 (4)	−0.1883 (3)	0.5157 (3)	0.0718 (10)
H1	0.8701	−0.1626	0.4455	0.108*
O2	0.8374 (3)	−0.1110 (3)	0.6882 (3)	0.0724 (10)
O3	0.8872 (3)	0.0868 (3)	0.1898 (3)	0.0582 (8)
O4	0.8969 (3)	−0.1020 (3)	0.2997 (3)	0.0662 (9)
O5	0.7711 (3)	0.4910 (3)	0.2083 (3)	0.0564 (8)
O6	0.6057 (3)	0.6263 (3)	0.1848 (3)	0.0691 (10)
O7	0.3863 (3)	0.6187 (3)	0.1382 (3)	0.0641 (9)
H6	0.4581	0.6182	0.1577	0.096*
O8	0.2555 (3)	0.4775 (3)	0.0983 (3)	0.0642 (9)
N1	0.8290 (3)	0.2105 (3)	0.3841 (3)	0.0500 (9)
N2	0.8112 (3)	0.1375 (4)	0.5753 (3)	0.0585 (10)
H2	0.7991	0.1451	0.6516	0.070*
N3	0.6401 (3)	0.2898 (3)	0.1720 (3)	0.0460 (9)
N4	0.4436 (3)	0.2822 (3)	0.1290 (3)	0.0505 (9)
H4	0.3776	0.2468	0.1111	0.061*
C1	0.8355 (4)	0.0337 (4)	0.5152 (4)	0.0440 (10)
C2	0.8473 (3)	0.0802 (4)	0.3970 (4)	0.0419 (10)
C3	0.8087 (5)	0.2420 (4)	0.4943 (4)	0.0604 (13)
C4	0.8790 (4)	0.0165 (4)	0.2877 (4)	0.0496 (11)
C5	0.8483 (4)	−0.0942 (5)	0.5799 (5)	0.0554 (12)
C6A	0.7996 (11)	0.3774 (11)	0.5220 (13)	0.084 (3)	0.759 (5)
H6A	0.8314	0.3810	0.5973	0.100*	0.759 (5)
H6B	0.8528	0.4288	0.4608	0.100*	0.759 (5)
C7A	0.6680 (8)	0.4301 (7)	0.5284 (8)	0.100 (3)	0.759 (5)
H7A	0.6169	0.3863	0.5964	0.120*	0.759 (5)
H7B	0.6321	0.4168	0.4573	0.120*	0.759 (5)
C8A	0.6635 (9)	0.5741 (7)	0.5402 (9)	0.137 (4)	0.759 (5)
H8A	0.5779	0.6013	0.5665	0.206*	0.759 (5)
H8B	0.6914	0.6202	0.4643	0.206*	0.759 (5)
H8C	0.7183	0.5897	0.5969	0.206*	0.759 (5)
C6B	0.747 (4)	0.358 (4)	0.541 (5)	0.084 (3)	0.241 (5)
H6C	0.6822	0.3936	0.4932	0.100*	0.241 (5)
H6D	0.7079	0.3376	0.6224	0.100*	0.241 (5)
C7B	0.846 (2)	0.452 (3)	0.538 (2)	0.100 (3)	0.241 (5)
H7C	0.8067	0.5350	0.5479	0.120*	0.241 (5)
H7D	0.8990	0.4584	0.4612	0.120*	0.241 (5)
C8B	0.929 (3)	0.410 (2)	0.638 (3)	0.137 (4)	0.241 (5)
H8D	0.9855	0.4767	0.6433	0.206*	0.241 (5)
H8E	0.9788	0.3351	0.6207	0.206*	0.241 (5)
H8F	0.8759	0.3933	0.7120	0.206*	0.241 (5)
C9	0.5827 (4)	0.4087 (4)	0.1688 (4)	0.0412 (10)
C10	0.4601 (4)	0.4059 (4)	0.1419 (4)	0.0432 (10)
C11	0.5528 (4)	0.2139 (4)	0.1468 (4)	0.0515 (11)
C12	0.6575 (4)	0.5144 (4)	0.1884 (4)	0.0507 (11)
C13	0.3590 (4)	0.5048 (4)	0.1255 (4)	0.0526 (12)
C14A	0.559 (3)	0.0724 (6)	0.1680 (13)	0.061 (3)	0.545 (7)
H14A	0.6447	0.0413	0.1436	0.073*	0.545 (7)
H14B	0.5023	0.0391	0.1202	0.073*	0.545 (7)
C15A	0.5196 (17)	0.0242 (9)	0.3025 (12)	0.093 (4)	0.545 (7)
H15A	0.5725	0.0607	0.3516	0.111*	0.545 (7)
H15B	0.4315	0.0488	0.3263	0.111*	0.545 (7)
C16A	0.5371 (12)	−0.1179 (9)	0.3172 (12)	0.107 (4)	0.545 (7)
H16A	0.5074	−0.1508	0.3976	0.160*	0.545 (7)
H16B	0.6257	−0.1410	0.2996	0.160*	0.545 (7)
H16C	0.4894	−0.1524	0.2637	0.160*	0.545 (7)
C14B	0.578 (3)	0.0799 (8)	0.1201 (18)	0.061 (3)	0.455 (7)
H14C	0.6668	0.0560	0.1241	0.073*	0.455 (7)
H14D	0.5594	0.0731	0.0402	0.073*	0.455 (7)
C15B	0.4928 (12)	−0.0126 (12)	0.2116 (12)	0.093 (4)	0.455 (7)
H15C	0.4039	0.0123	0.2083	0.111*	0.455 (7)
H15D	0.5061	−0.0979	0.1897	0.111*	0.455 (7)
C16B	0.523 (2)	−0.0117 (16)	0.3355 (14)	0.107 (4)	0.455 (7)
H16D	0.5291	−0.0971	0.3736	0.160*	0.455 (7)
H16E	0.4576	0.0352	0.3793	0.160*	0.455 (7)
H16F	0.6032	0.0274	0.3332	0.160*	0.455 (7)
O1W	0.8931 (3)	0.3345 (3)	0.0048 (3)	0.0828 (11)
H1W	0.9099	0.2672	−0.0280	0.124*
H2W	0.8568	0.3968	−0.0336	0.124*
O2W	1.0434 (3)	0.3326 (3)	0.2140 (3)	0.0849 (12)
H3W	1.0867	0.3943	0.1787	0.127*
H4W	1.0929	0.2699	0.2328	0.127*
O3W	0.9127 (6)	0.0143 (5)	0.9610 (5)	0.0656 (17)	0.50
H5W	0.9930	0.0018	0.9532	0.098*	0.50
H6W	0.9068	0.0143	1.0364	0.098*	0.50
O4W	0.7778 (4)	0.1620 (4)	0.8153 (4)	0.1275 (17)
H7W	0.8316	0.1163	0.8523	0.191*
H8W	0.7326	0.2287	0.8273	0.191*
O5W	0.1048 (3)	0.2730 (3)	0.8677 (3)	0.0828 (11)
H9W	0.1543	0.3290	0.8309	0.124*
H10W	0.1101	0.2120	0.8256	0.124*
O6W	0.2622 (3)	0.1565 (4)	0.0418 (4)	0.1110 (15)
H11W	0.2152	0.0928	0.0546	0.167*
H12W	0.2063	0.2152	0.0292	0.167*

Atomic displacement parameters (Å²) top

	U¹¹	U²²	U³³	U¹²	U¹³	U²³
Mn1	0.0448 (4)	0.0542 (5)	0.0498 (5)	0.0021 (3)	−0.0097 (3)	0.0064 (3)
O1	0.091 (2)	0.051 (2)	0.071 (3)	0.0000 (18)	−0.019 (2)	0.0070 (18)
O2	0.073 (2)	0.082 (2)	0.052 (2)	0.0119 (18)	−0.0074 (18)	0.0235 (18)
O3	0.065 (2)	0.062 (2)	0.044 (2)	0.0122 (16)	−0.0093 (16)	0.0003 (16)
O4	0.094 (2)	0.049 (2)	0.058 (2)	0.0116 (17)	−0.0190 (18)	−0.0090 (16)
O5	0.0510 (18)	0.0522 (19)	0.068 (2)	−0.0029 (14)	−0.0201 (16)	−0.0028 (16)
O6	0.064 (2)	0.050 (2)	0.096 (3)	0.0058 (16)	−0.0150 (19)	−0.0153 (18)
O7	0.0532 (19)	0.057 (2)	0.081 (3)	0.0147 (16)	−0.0147 (18)	−0.0039 (18)
O8	0.0415 (17)	0.072 (2)	0.074 (2)	0.0008 (16)	−0.0118 (16)	0.0119 (17)
N1	0.051 (2)	0.054 (2)	0.043 (2)	0.0040 (17)	−0.0077 (18)	−0.0020 (18)
N2	0.063 (2)	0.070 (3)	0.041 (2)	0.007 (2)	−0.0037 (19)	−0.008 (2)
N3	0.046 (2)	0.040 (2)	0.051 (2)	0.0014 (16)	−0.0115 (17)	0.0029 (16)
N4	0.0364 (19)	0.053 (2)	0.061 (3)	−0.0019 (17)	−0.0159 (17)	0.0055 (18)
C1	0.040 (2)	0.048 (3)	0.043 (3)	0.0023 (19)	−0.005 (2)	0.000 (2)
C2	0.039 (2)	0.042 (2)	0.044 (3)	0.0022 (18)	−0.008 (2)	−0.002 (2)
C3	0.078 (3)	0.053 (3)	0.049 (3)	0.005 (2)	−0.008 (3)	−0.004 (2)
C4	0.044 (2)	0.055 (3)	0.051 (3)	0.008 (2)	−0.013 (2)	−0.006 (2)
C5	0.047 (3)	0.061 (3)	0.055 (3)	−0.002 (2)	−0.013 (2)	0.010 (3)
C6A	0.125 (12)	0.063 (6)	0.060 (7)	0.014 (7)	−0.005 (8)	−0.013 (5)
C7A	0.122 (7)	0.068 (5)	0.106 (7)	0.015 (5)	−0.002 (5)	−0.013 (5)
C8A	0.177 (10)	0.076 (6)	0.154 (10)	0.023 (6)	0.001 (7)	−0.025 (6)
C6B	0.125 (12)	0.063 (6)	0.060 (7)	0.014 (7)	−0.005 (8)	−0.013 (5)
C7B	0.122 (7)	0.068 (5)	0.106 (7)	0.015 (5)	−0.002 (5)	−0.013 (5)
C8B	0.177 (10)	0.076 (6)	0.154 (10)	0.023 (6)	0.001 (7)	−0.025 (6)
C9	0.041 (2)	0.040 (2)	0.041 (3)	0.0010 (19)	−0.0066 (19)	0.0023 (19)
C10	0.043 (2)	0.041 (3)	0.042 (3)	0.0043 (19)	−0.0047 (19)	0.0032 (19)
C11	0.045 (2)	0.047 (3)	0.062 (3)	−0.002 (2)	−0.013 (2)	0.000 (2)
C12	0.054 (3)	0.046 (3)	0.052 (3)	−0.001 (2)	−0.007 (2)	−0.003 (2)
C13	0.047 (3)	0.057 (3)	0.048 (3)	0.002 (2)	0.001 (2)	0.008 (2)
C14A	0.058 (8)	0.042 (3)	0.082 (12)	0.002 (3)	−0.023 (10)	0.004 (4)
C15A	0.073 (6)	0.056 (6)	0.143 (12)	−0.005 (5)	−0.023 (7)	0.021 (6)
C16A	0.116 (8)	0.068 (6)	0.133 (9)	−0.005 (7)	−0.022 (7)	0.006 (7)
C14B	0.058 (8)	0.042 (3)	0.082 (12)	0.002 (3)	−0.023 (10)	0.004 (4)
C15B	0.073 (6)	0.056 (6)	0.143 (12)	−0.005 (5)	−0.023 (7)	0.021 (6)
C16B	0.116 (8)	0.068 (6)	0.133 (9)	−0.005 (7)	−0.022 (7)	0.006 (7)
O1W	0.078 (2)	0.097 (3)	0.060 (2)	0.036 (2)	−0.0015 (18)	0.0170 (19)
O2W	0.052 (2)	0.088 (3)	0.105 (3)	−0.0148 (18)	−0.0197 (19)	0.043 (2)
O3W	0.072 (4)	0.074 (4)	0.051 (4)	0.006 (3)	−0.013 (3)	−0.011 (3)
O4W	0.156 (4)	0.155 (4)	0.078 (3)	0.069 (3)	−0.035 (3)	−0.053 (3)
O5W	0.073 (2)	0.078 (2)	0.100 (3)	−0.0245 (19)	0.013 (2)	−0.035 (2)
O6W	0.099 (3)	0.108 (3)	0.144 (4)	0.006 (2)	−0.064 (3)	−0.038 (3)

Geometric parameters (Å, º) top

Mn1—O1W	2.134 (3)	C6B—H6D	0.9700
Mn1—O2W	2.178 (3)	C7B—C8B	1.540 (13)
Mn1—O3	2.218 (3)	C7B—H7C	0.9700
Mn1—N1	2.237 (4)	C7B—H7D	0.9700
Mn1—O5	2.238 (3)	C8B—H8D	0.9600
Mn1—N3	2.260 (3)	C8B—H8E	0.9600
O1—C5	1.312 (5)	C8B—H8F	0.9600
O1—H1	0.8200	C9—C10	1.377 (5)
O2—C5	1.219 (5)	C9—C12	1.468 (6)
O3—C4	1.261 (5)	C10—C13	1.474 (5)
O4—C4	1.259 (5)	C11—C14A	1.495 (7)
O5—C12	1.260 (5)	C11—C14B	1.499 (9)
O6—C12	1.283 (5)	C14A—C15A	1.567 (14)
O7—C13	1.292 (5)	C14A—H14A	0.9700
O7—H6	0.8200	C14A—H14B	0.9700
O8—C13	1.238 (5)	C15A—C16A	1.505 (11)
N1—C3	1.332 (5)	C15A—H15A	0.9700
N1—C2	1.382 (5)	C15A—H15B	0.9700
N2—C3	1.356 (5)	C16A—H16A	0.9600
N2—C1	1.369 (5)	C16A—H16B	0.9600
N2—H2	0.8771	C16A—H16C	0.9600
N3—C11	1.344 (5)	C14B—C15B	1.571 (14)
N3—C9	1.373 (5)	C14B—H14C	0.9700
N4—C11	1.358 (5)	C14B—H14D	0.9700
N4—C10	1.367 (5)	C15B—C16B	1.495 (12)
N4—H4	0.8708	C15B—H15C	0.9700
C1—C2	1.371 (6)	C15B—H15D	0.9700
C1—C5	1.474 (6)	C16B—H16D	0.9600
C2—C4	1.487 (6)	C16B—H16E	0.9600
C3—C6B	1.50 (5)	C16B—H16F	0.9600
C3—C6A	1.510 (12)	O1W—H1W	0.8500
C6A—C7A	1.472 (14)	O1W—H2W	0.8500
C6A—H6A	0.9700	O2W—H3W	0.8501
C6A—H6B	0.9700	O2W—H4W	0.8500
C7A—C8A	1.553 (9)	O3W—H5W	0.8499
C7A—H7A	0.9700	O3W—H6W	0.8551
C7A—H7B	0.9700	O4W—H7W	0.8500
C8A—H8A	0.9600	O4W—H8W	0.8500
C8A—H8B	0.9600	O5W—H9W	0.8500
C8A—H8C	0.9600	O5W—H10W	0.8500
C6B—C7B	1.482 (17)	O6W—H11W	0.8500
C6B—H6C	0.9700	O6W—H12W	0.8500

O1W—Mn1—O2W	89.56 (13)	C8B—C7B—H7C	109.8
O1W—Mn1—O3	93.19 (12)	C6B—C7B—H7D	109.8
O2W—Mn1—O3	94.68 (12)	C8B—C7B—H7D	109.8
O1W—Mn1—N1	167.13 (13)	H7C—C7B—H7D	108.3
O2W—Mn1—N1	86.66 (12)	C7B—C8B—H8D	109.5
O3—Mn1—N1	74.89 (12)	C7B—C8B—H8E	109.5
O1W—Mn1—O5	91.53 (12)	H8D—C8B—H8E	109.5
O2W—Mn1—O5	95.47 (12)	C7B—C8B—H8F	109.5
O3—Mn1—O5	168.84 (11)	H8D—C8B—H8F	109.5
N1—Mn1—O5	101.07 (12)	H8E—C8B—H8F	109.5
O1W—Mn1—N3	89.97 (12)	N3—C9—C10	110.4 (3)
O2W—Mn1—N3	169.81 (13)	N3—C9—C12	118.4 (3)
O3—Mn1—N3	95.51 (11)	C10—C9—C12	131.2 (4)
N1—Mn1—N3	95.91 (12)	N4—C10—C9	105.1 (3)
O5—Mn1—N3	74.37 (11)	N4—C10—C13	122.0 (4)
C5—O1—H1	109.5	C9—C10—C13	132.9 (4)
C4—O3—Mn1	118.1 (3)	N3—C11—N4	109.9 (4)
C12—O5—Mn1	116.7 (3)	N3—C11—C14A	125.3 (13)
C13—O7—H6	109.5	N4—C11—C14A	122.8 (12)
C3—N1—C2	105.4 (3)	N3—C11—C14B	125.4 (15)
C3—N1—Mn1	142.5 (3)	N4—C11—C14B	123.9 (15)
C2—N1—Mn1	112.1 (3)	C14A—C11—C14B	21.4 (9)
C3—N2—C1	108.2 (4)	O5—C12—O6	122.5 (4)
C3—N2—H2	120.0	O5—C12—C9	118.2 (4)
C1—N2—H2	131.8	O6—C12—C9	119.3 (4)
C11—N3—C9	105.7 (3)	O8—C13—O7	123.3 (4)
C11—N3—Mn1	141.8 (3)	O8—C13—C10	120.2 (4)
C9—N3—Mn1	111.8 (3)	O7—C13—C10	116.4 (4)
C11—N4—C10	108.9 (3)	C11—C14A—C15A	111.1 (7)
C11—N4—H4	121.3	C11—C14A—H14A	109.4
C10—N4—H4	129.8	C15A—C14A—H14A	109.4
N2—C1—C2	105.5 (4)	C11—C14A—H14B	109.4
N2—C1—C5	120.8 (4)	C15A—C14A—H14B	109.4
C2—C1—C5	133.7 (4)	H14A—C14A—H14B	108.0
C1—C2—N1	110.1 (4)	C16A—C15A—C14A	107.5 (10)
C1—C2—C4	131.7 (4)	C16A—C15A—H15A	110.2
N1—C2—C4	118.2 (4)	C14A—C15A—H15A	110.2
N1—C3—N2	110.8 (4)	C16A—C15A—H15B	110.2
N1—C3—C6B	131 (2)	C14A—C15A—H15B	110.2
N2—C3—C6B	115 (2)	H15A—C15A—H15B	108.5
N1—C3—C6A	123.2 (7)	C11—C14B—C15B	110.5 (12)
N2—C3—C6A	125.7 (7)	C11—C14B—H14C	109.5
C6B—C3—C6A	23.1 (13)	C15B—C14B—H14C	109.5
O4—C4—O3	125.2 (4)	C11—C14B—H14D	109.5
O4—C4—C2	118.1 (4)	C15B—C14B—H14D	109.5
O3—C4—C2	116.8 (4)	H14C—C14B—H14D	108.1
O2—C5—O1	121.7 (4)	C16B—C15B—C14B	111.5 (16)
O2—C5—C1	121.2 (5)	C16B—C15B—H15C	109.3
O1—C5—C1	117.0 (4)	C14B—C15B—H15C	109.3
C7A—C6A—C3	112.0 (8)	C16B—C15B—H15D	109.3
C7A—C6A—H6A	109.2	C14B—C15B—H15D	109.3
C3—C6A—H6A	109.2	H15C—C15B—H15D	108.0
C7A—C6A—H6B	109.2	C15B—C16B—H16D	109.5
C3—C6A—H6B	109.2	C15B—C16B—H16E	109.5
H6A—C6A—H6B	107.9	H16D—C16B—H16E	109.5
C6A—C7A—C8A	111.0 (8)	C15B—C16B—H16F	109.5
C6A—C7A—H7A	109.4	H16D—C16B—H16F	109.5
C8A—C7A—H7A	109.4	H16E—C16B—H16F	109.5
C6A—C7A—H7B	109.4	Mn1—O1W—H1W	111.4
C8A—C7A—H7B	109.4	Mn1—O1W—H2W	121.1
H7A—C7A—H7B	108.0	H1W—O1W—H2W	118.1
C7B—C6B—C3	109 (3)	Mn1—O2W—H3W	127.0
C7B—C6B—H6C	110.0	Mn1—O2W—H4W	117.6
C3—C6B—H6C	110.0	H3W—O2W—H4W	109.8
C7B—C6B—H6D	110.0	H5W—O3W—H6W	93.8
C3—C6B—H6D	110.0	H7W—O4W—H8W	135.3
H6C—C6B—H6D	108.3	H9W—O5W—H10W	106.9
C6B—C7B—C8B	109 (3)	H11W—O6W—H12W	99.7
C6B—C7B—H7C	109.8

Hydrogen-bond geometry (Å, º) top

D—H···A	D—H	H···A	D···A	D—H···A
O1—H1···O4	0.82	1.70	2.507 (5)	167
O7—H6···O6	0.82	1.64	2.462 (4)	175
N2—H2···O4W	0.88	1.88	2.762 (6)	179
N4—H4···O6W	0.87	1.90	2.758 (5)	166
O1W—H1W···O5Wⁱ	0.85	2.25	2.667 (4)	110
O1W—H2W···O8ⁱⁱ	0.85	1.89	2.724 (4)	168
O2W—H3W···O8ⁱⁱⁱ	0.85	2.09	2.878 (4)	153
O2W—H4W···O2^iv	0.85	1.97	2.791 (4)	163
O3W—H5W···O3W^v	0.85	1.48	2.149 (12)	133
O3W—H5W···O3^iv	0.85	2.21	2.811 (6)	128
O3W—H6W···O3^vi	0.86	1.98	2.793 (7)	157
O4W—H7W···O3W	0.85	1.82	2.646 (7)	165
O4W—H8W···O7^vii	0.85	2.05	2.897 (5)	176
O5W—H9W···O5^vii	0.85	2.09	2.885 (4)	156
O5W—H9W···O6^vii	0.85	2.59	3.266 (5)	137
O5W—H10W···O4^viii	0.85	1.97	2.804 (4)	166
O6W—H11W···O3W^viii	0.85	1.86	2.674 (7)	160
O6W—H12W···O5W^ix	0.85	2.26	2.880 (6)	130

Symmetry codes: (i) x+1, y, z−1; (ii) −x+1, −y+1, −z; (iii) x+1, y, z; (iv) −x+2, −y, −z+1; (v) −x+2, −y, −z+2; (vi) x, y, z+1; (vii) −x+1, −y+1, −z+1; (viii) −x+1, −y, −z+1; (ix) x, y, z−1.

Experimental details

Crystal data
Chemical formula	[Mn(C₈H₉N₂O₄)₂(H₂O)₂]·3.5H₂O
M_r	548.37
Crystal system, space group	Triclinic, P1
Temperature (K)	296
a, b, c (Å)	10.609 (6), 10.649 (6), 11.424 (7)
α, β, γ (°)	82.748 (8), 82.544 (7), 86.857 (7)
V (Å³)	1268.5 (13)
Z	2
Radiation type	Mo Kα
µ (mm⁻¹)	0.59
Crystal size (mm)	0.31 × 0.26 × 0.21

Data collection
Diffractometer	Bruker APEXII area-detector diffractometer
Absorption correction	Multi-scan (SADABS; Bruker, 2004)
T_min, T_max	0.838, 0.886
No. of measured, independent and observed [I > 2σ(I)] reflections	6656, 4508, 2551
R_int	0.035
(sin θ/λ)_max (Å⁻¹)	0.599

Refinement
R[F² > 2σ(F²)], wR(F²), S	0.059, 0.152, 1.00
No. of reflections	4508
No. of parameters	342
No. of restraints	5
H-atom treatment	H-atom parameters constrained
Δρ_max, Δρ_min (e Å⁻³)	0.32, −0.33

Computer programs: APEXII (Bruker, 2004), SAINT (Bruker, 2004), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).

Hydrogen-bond geometry (Å, º) top

D—H···A	D—H	H···A	D···A	D—H···A
O1—H1···O4	0.82	1.70	2.507 (5)	166.7
O7—H6···O6	0.82	1.64	2.462 (4)	174.5
N2—H2···O4W	0.88	1.88	2.762 (6)	178.5
N4—H4···O6W	0.87	1.90	2.758 (5)	166.1
O1W—H1W···O5Wⁱ	0.85	2.25	2.667 (4)	110.4
O1W—H2W···O8ⁱⁱ	0.85	1.89	2.724 (4)	167.8
O2W—H3W···O8ⁱⁱⁱ	0.85	2.09	2.878 (4)	153.4
O2W—H4W···O2^iv	0.85	1.97	2.791 (4)	162.6
O3W—H5W···O3W^v	0.85	1.48	2.149 (12)	132.9
O3W—H5W···O3^iv	0.85	2.21	2.811 (6)	127.5
O3W—H6W···O3^vi	0.86	1.98	2.793 (7)	157.2
O4W—H7W···O3W	0.85	1.82	2.646 (7)	165.4
O4W—H8W···O7^vii	0.85	2.05	2.897 (5)	176.0
O5W—H9W···O5^vii	0.85	2.09	2.885 (4)	155.9
O5W—H9W···O6^vii	0.85	2.59	3.266 (5)	136.7
O5W—H10W···O4^viii	0.85	1.97	2.804 (4)	165.8
O6W—H11W···O3W^viii	0.85	1.86	2.674 (7)	160.0
O6W—H12W···O5W^ix	0.85	2.26	2.880 (6)	130.1

Acknowledgements

The work was supported by the Non-profit Industry Foundation of the National Ocean Administration of China (grant No. 2000905021), Guangdong Oceanic Fisheries Technology Promotion Project [grant No. A2009003–018(c)], Guangdong Chinese Academy of Science Comprehensive Strategic Cooperation Project (grant No. 2009B091300121), Guangdong Province Key Project in the field of social development [grant No. A2009011–007(c)], the Science and Technology Department of Guangdong Province Project (grant No.00087061110314018) and the Guangdong Natural Science Foundation (No.9252408801000002).

References

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