Disodium dimanganese(II) trioxalate dihydrate

In the crystal structure of the title compound, poly[di-μ₂-aqua-di-μ₅-oxalato-μ₄-oxalato-disodiumdimanganese(II)], [Na₂Mn₂(C₂O₄)₃(H₂O)₂]_n, one of the oxalate ions lies on an inversion centre. The Mn atom is six-coordinate and Na is seven-coordinate; two of the oxalate ions bridge in a μ₅ mode and the third in a μ₄ mode. The Mn atoms are bridged into a ladder motif; neighbouring ladders are bridged by the water mol­ecules and Na atoms into a three-dimensional network structure. Water–oxalate hydrogen bonds exist in the structure.

Key indicators

• Single-crystal X-ray study
• T = 130 K
• Mean [sigma](C-C) = 0.003 Å
• R factor = 0.024
• wR factor = 0.054
• Data-to-parameter ratio = 13.2

checkCIF/PLATON results

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PLAT041_ALERT_1_C Calc. and Rep. SumFormula Strings    Differ ....          ?
PLAT042_ALERT_1_C Calc. and Rep. MoietyFormula Strings Differ ....          ?
PLAT045_ALERT_1_C Calculated and Reported Z Differ by ............       2.00 Ratio
PLAT369_ALERT_2_C Long   C(sp2)-C(sp2) Bond  C1     -   C2     ...       1.56 Ang.
PLAT369_ALERT_2_C Long   C(sp2)-C(sp2) Bond  C3     -   C3_e   ...       1.55 Ang.
PLAT764_ALERT_4_C Overcomplete CIF Bond List Detected (Rep/Expd) .       1.48 Ratio

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PLAT794_ALERT_5_G Check Predicted Bond Valency for Mn1         (2)       2.11
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PLAT860_ALERT_3_G Note: Number of Least-Squares Restraints .......          2

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S1. Comment

Carboxylate ligands have been extensively studied because of their versatile coordinating modes in the coordination chemistry (Moulton & Zaworotko, 2001; Yaghi et al., 1996). Oxalate (ox) ligand is an important carboxylate ligand as it has a multiple coordinating modes, which together with the varied coordination geometry of metal ions has led to the generation of products containing one-dimensional chains, two-dimensional layers and three-dimensional frameworks (Castillo et al., 2005; Naumov et al., 1995; Bataille & Louër, 1999). The hydrothermal reaction of MnCl₂ with Na₂(ox) and oxalic acid yields the title complex, (I). We present its structure here.

The asymmetric unit of (I) consists of one manganese(II) ion, one sodium(I) ion, one and half ox dianions, and one coordinated water molecule. As depicted in Fig. 1, the Mn atom is six-coordinated by four oxygen atoms from three dianionic ox ligands in a distorted square planar geometry, and two oxygen atoms from water molecule and ox ligand in the apical positions. The bond dimensions involving Mn are normal (Table 1), and are comparable to the values in related manganese (II) complexes (Wu et al., 2005). The Na atom is seven-coordinated by seven O atom from four dianionic ox ligands, and one water molecule with the Na—O bond lengths varying from 2.302 (2)–2.712 (2) Å, which are comparable to the values in the [Na₂Co₂(ox)₃(H₂O)₂] _n compound (Price et al., 2000).

It is interesting that the coordinated water molecule displays a µ₂ coordinating mode bridgeing the Mn1 and Na1 atoms, which further bridge by a µ₂carboxlate O atom to form a 4-membered NaMnO₂ ring with a Na···Mn separation of 3.55 Å (Fig. 1). Two types of ox ligands are observed in this structure. One is located on an inversion centre with a coplanar conformation and bridgs two Mn atoms and two Na atoms, in which each O atom is exhibits a µ₂ coordinating fashion. The other displays a nonplanar conformation with the two carboxylate groups twisted with a dihedral angle of 19.8 (5) °. It bridgs two Mn atoms and three Na atoms using its two mondentate O atoms, one µ₂-O atom and one µ₃-O atom. The Mn ions are linked by the ox lignads to form a one-dimensional ladder structure propagating along a axis, as shown in Fig.2. The ladder is repeated by translation about every 5.9 Å along the a direction, comparable to the length of the a axis. The ladders are further connected by the Na ions and water molecules through the Na—O bonds to produce a three-dimensional structure, as shown in Fig. 3. The O—H···O hydrogen bonds between the water molecules and oxalate O atoms are observed in the three-dimensional structure with a O···O distances of 2.688 (2) and 2.824 (2) Å, respectively (Table 2).

Related literature

For related literature on metal oxalates, see: Bataille & Louër (1999); Castillo et al. (2001); Moulton & Zaworotko (2001); Naumov et al. (1995); Price et al. (2000); Wu et al. (2005); Yaghi et al. (1996).

S2. Experimental

The title compound was synthesized by a hydrothermal method under autogenous pressure. A mixture of MnCl₂·4H₂O (0.269 g,1 mmol), Na₂C₂O₄ (0.268 g, 2 mmol), H₂C₂O₄ (0.180 g, 2 mmol), and 15 ml distilled water was stirred under ambient conditions. The final mixture was sealed in a 25 ml Teflon-lined steel autoclave and heated at 423 K for 3 days, and then cooled to room temperature. Colorless prism crystals of (I) were obtained, and these were recovered by filtration, washed with distilled water and dried in air (yield 32%). Analysis calculated for C₆H₄O₁₄Mn₂Na₂: C 15.81, H 0.88%; found: C 15.92, H 0.90%.

S3. Refinement

The H atoms bonded to O atoms were visible in difference maps and refined with a DFIX restraint (SHELXTL; Sheldrick, 1997b) of O—H = 0.90 Å and with U_iso(H) = 1.5U_eq(O).

Computing details

Data collection: CrystalClear (Rigaku/MSC, 2000); cell refinement: CrystalClear (Rigaku/MSC, 2000); data reduction: CrystalClear (Rigaku/MSC, 2000); program(s) used to solve structure: SHELXS97 (Sheldrick, 1997a); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997a); molecular graphics: SHELXTL (Sheldrick, 1997b) and DIAMOND (Brandenburg, 2005); software used to prepare material for publication: SHELXTL (Sheldrick, 1997b).

Figures

	Fig. 1. ORTEP drawing of the title compound. Thermal ellipsoids are drawn at the 60% probability level and H atoms are shown as small spheres of arbitrary radii. [Symmetry codes: (i) x + 1, y, z; (ii) -x + 2, -y + 1, -z + 2; (iii) x, -y + 1/2, z - 1/2; (iv) x + 1, -y + 1/2, z - 1/2; (v) -x + 2, -y + 1, -z + 1.]
	Fig. 2. A view of the one-dimensional Mn2(ox)3 ladder-like structure.
	Fig. 3. A perspective view of the three-dimensional structure of (I) (viewed down the a axis).

poly[di-µ₂-aqua-di-µ₅-oxalato-µ₄-oxalato-disodiumdimanganese(II)],

Crystal data

[Na2Mn2(C2O4)3(H2O)2]	F(000) = 448
Mr = 455.95	Dx = 2.292 Mg m^−3
Monoclinic, P21/c	Mo Kα radiation, λ = 0.71073 Å
Hall symbol: -P 2ybc	Cell parameters from 2218 reflections
a = 5.937 (2) Å	θ = 2.6–27.5°
b = 15.785 (6) Å	µ = 2.06 mm^−1
c = 7.167 (3) Å	T = 130 K
β = 100.416 (4)°	Prism, white
V = 660.6 (4) Å^3	0.20 × 0.18 × 0.10 mm
Z = 2

Data collection

Rigaku Mercury70 diffractometer	1514 independent reflections
Radiation source: fine-focus sealed tube	1415 reflections with I > 2σ(I)
Graphite monochromator	Rint = 0.022
ω scans	θmax = 27.5°, θmin = 2.6°
Absorption correction: multi-scan (CrystalClear; Rigaku/MSC, 2000)	h = −7→7
Tmin = 0.684, Tmax = 0.821	k = −20→17
5047 measured reflections	l = −9→7

Refinement

Refinement on F^2	Primary atom site location: structure-invariant direct methods
Least-squares matrix: full	Secondary atom site location: difference Fourier map
R[F^2 > 2σ(F^2)] = 0.024	Hydrogen site location: inferred from neighbouring sites
wR(F^2) = 0.054	H atoms treated by a mixture of independent and constrained refinement
S = 1.03	w = 1/[σ^2(Fo^2) + (0.0234P)^2 + 0.5936P] where P = (Fo^2 + 2Fc^2)/3
1514 reflections	(Δ/σ)max = 0.001
115 parameters	Δρmax = 0.48 e Å^−3
2 restraints	Δρmin = −0.33 e Å^−3

Special details

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 (Ų)

	x	y	z	Uiso*/Ueq
Na1	0.96700 (12)	0.32021 (4)	0.29951 (10)	0.01170 (16)
Mn1	0.77063 (4)	0.396970 (16)	0.70734 (4)	0.00868 (9)
O1	0.6514 (2)	0.27044 (7)	0.73592 (18)	0.0122 (3)
O2	0.3505 (2)	0.19589 (8)	0.7916 (2)	0.0153 (3)
O3	0.3964 (2)	0.41196 (8)	0.71439 (18)	0.0121 (3)
O4	0.0795 (2)	0.33091 (8)	0.66136 (18)	0.0126 (3)
O5	0.8909 (2)	0.52445 (8)	0.76226 (18)	0.0128 (3)
O6	1.0935 (2)	0.60435 (8)	0.98897 (19)	0.0140 (3)
O7	0.6836 (2)	0.41824 (8)	0.40310 (18)	0.0111 (3)
H7A	0.556 (3)	0.3905 (12)	0.357 (3)	0.017*
H7B	0.676 (4)	0.4710 (8)	0.359 (3)	0.017*
C1	0.4430 (3)	0.26164 (11)	0.7476 (2)	0.0101 (3)
C2	0.2918 (3)	0.34261 (11)	0.7036 (2)	0.0095 (3)
C3	0.9948 (3)	0.53706 (11)	0.9280 (3)	0.0106 (3)

Atomic displacement parameters (Ų)

	U^11	U^22	U^33	U^12	U^13	U^23
Na1	0.0084 (3)	0.0128 (3)	0.0139 (3)	−0.0002 (3)	0.0021 (3)	0.0015 (3)
Mn1	0.00639 (14)	0.00773 (14)	0.01170 (14)	−0.00048 (9)	0.00103 (10)	−0.00016 (10)
O1	0.0066 (6)	0.0100 (6)	0.0203 (6)	−0.0002 (5)	0.0029 (5)	0.0017 (5)
O2	0.0094 (6)	0.0102 (6)	0.0262 (7)	−0.0014 (5)	0.0029 (5)	0.0042 (5)
O3	0.0088 (6)	0.0099 (6)	0.0177 (7)	0.0003 (5)	0.0024 (5)	0.0010 (5)
O4	0.0060 (6)	0.0142 (6)	0.0172 (6)	0.0008 (5)	0.0014 (5)	−0.0007 (5)
O5	0.0151 (7)	0.0101 (6)	0.0124 (6)	−0.0015 (5)	0.0000 (5)	0.0013 (5)
O6	0.0187 (7)	0.0098 (6)	0.0128 (6)	−0.0045 (5)	0.0008 (5)	0.0009 (5)
O7	0.0092 (6)	0.0096 (6)	0.0138 (6)	−0.0012 (5)	0.0001 (5)	0.0009 (5)
C1	0.0091 (8)	0.0091 (8)	0.0119 (8)	−0.0004 (6)	0.0010 (7)	−0.0007 (6)
C2	0.0082 (8)	0.0121 (8)	0.0087 (8)	0.0010 (6)	0.0026 (6)	−0.0002 (6)
C3	0.0094 (8)	0.0095 (8)	0.0132 (8)	0.0000 (6)	0.0030 (7)	0.0010 (7)

Geometric parameters (Å, º)

Na1—O2^i	2.3021 (17)	O2—Na1^vii	2.3021 (17)
Na1—O1^ii	2.3359 (15)	O3—C2	1.254 (2)
Na1—O6^iii	2.3565 (16)	O4—C2	1.256 (2)
Na1—O7	2.4958 (16)	O4—Mn1^viii	2.1856 (14)
Na1—O4^iv	2.5638 (17)	O4—Na1^viii	2.5638 (17)
Na1—O5^iii	2.6561 (16)	O4—Na1^vii	2.7121 (16)
Na1—O4^i	2.7121 (16)	O5—C3	1.251 (2)
Na1—C3^iii	2.814 (2)	O5—Na1^iii	2.6561 (16)
Mn1—O1	2.1411 (14)	O6—C3	1.253 (2)
Mn1—O5	2.1477 (14)	O6—Mn1^v	2.1803 (15)
Mn1—O7	2.1740 (15)	O6—Na1^iii	2.3565 (16)
Mn1—O6^v	2.1803 (15)	O7—H7B	0.889 (10)
Mn1—O4^iv	2.1856 (14)	O7—H7A	0.887 (10)
Mn1—O3	2.2444 (15)	C1—C2	1.561 (2)
O1—C1	1.263 (2)	C3—C3^v	1.554 (3)
O1—Na1^vi	2.3359 (15)	C3—Na1^iii	2.814 (2)
O2—C1	1.241 (2)
O2^i—Na1—O1^ii	133.60 (6)	C1—O1—Mn1	116.98 (11)
O2^i—Na1—O6^iii	91.64 (5)	C1—O1—Na1^vi	132.89 (11)
O1^ii—Na1—O6^iii	98.56 (5)	Mn1—O1—Na1^vi	108.83 (6)
O2^i—Na1—O7	143.02 (5)	C1—O2—Na1^vii	125.70 (12)
O1^ii—Na1—O7	82.97 (5)	C2—O3—Mn1	112.82 (11)
O6^iii—Na1—O7	86.77 (5)	C2—O4—Mn1^viii	136.59 (12)
O2^i—Na1—O4^iv	87.38 (5)	C2—O4—Na1^viii	108.68 (11)
O1^ii—Na1—O4^iv	106.90 (5)	Mn1^viii—O4—Na1^viii	96.42 (5)
O6^iii—Na1—O4^iv	145.55 (5)	C2—O4—Na1^vii	110.12 (11)
O7—Na1—O4^iv	74.01 (5)	Mn1^viii—O4—Na1^vii	95.50 (5)
O2^i—Na1—O5^iii	75.66 (5)	Na1^viii—O4—Na1^vii	105.96 (5)
O1^ii—Na1—O5^iii	143.19 (5)	C3—O5—Mn1	114.42 (11)
O6^iii—Na1—O5^iii	52.40 (4)	C3—O5—Na1^iii	83.95 (10)
O7—Na1—O5^iii	74.26 (5)	Mn1—O5—Na1^iii	159.97 (6)
O4^iv—Na1—O5^iii	94.32 (4)	C3—O6—Mn1^v	113.92 (11)
O2^i—Na1—O4^i	65.42 (4)	C3—O6—Na1^iii	97.75 (11)
O1^ii—Na1—O4^i	68.39 (5)	Mn1^v—O6—Na1^iii	148.30 (6)
O6^iii—Na1—O4^i	97.62 (5)	Mn1—O7—Na1	98.73 (5)
O7—Na1—O4^i	151.36 (5)	Mn1—O7—H7B	119.2 (15)
O4^iv—Na1—O4^i	113.01 (4)	Na1—O7—H7B	118.0 (15)
O5^iii—Na1—O4^i	130.13 (5)	Mn1—O7—H7A	109.3 (15)
O1—Mn1—O5	163.98 (5)	Na1—O7—H7A	99.2 (15)
O1—Mn1—O7	102.55 (5)	H7B—O7—H7A	110 (2)
O5—Mn1—O7	92.86 (5)	O2—C1—O1	126.34 (16)
O1—Mn1—O6^v	87.97 (5)	O2—C1—C2	118.12 (16)
O5—Mn1—O6^v	77.01 (5)	O1—C1—C2	115.54 (15)
O7—Mn1—O6^v	168.70 (5)	O3—C2—O4	127.40 (16)
O1—Mn1—O4^iv	82.54 (5)	O3—C2—C1	116.24 (15)
O5—Mn1—O4^iv	102.38 (5)	O4—C2—C1	116.36 (15)
O7—Mn1—O4^iv	88.64 (5)	O5—C3—O6	125.80 (16)
O6^v—Mn1—O4^iv	88.67 (5)	O5—C3—C3^v	117.67 (19)
O1—Mn1—O3	75.55 (5)	O6—C3—C3^v	116.52 (19)
O5—Mn1—O3	101.24 (5)	O5—C3—Na1^iii	69.81 (10)
O7—Mn1—O3	87.11 (5)	O6—C3—Na1^iii	56.07 (9)
O6^v—Mn1—O3	99.66 (5)	C3^v—C3—Na1^iii	171.83 (16)
O4^iv—Mn1—O3	156.18 (5)
O2^i—Na1—Mn1—O1	−109.75 (6)	O6^v—Mn1—O1—C1	98.97 (13)
O1^ii—Na1—Mn1—O1	34.66 (4)	O4^iv—Mn1—O1—C1	−172.11 (13)
O6^iii—Na1—Mn1—O1	134.71 (6)	O3—Mn1—O1—C1	−1.55 (12)
O7—Na1—Mn1—O1	113.12 (6)	Na1—Mn1—O1—C1	−126.08 (12)
O4^iv—Na1—Mn1—O1	−83.84 (6)	Na1^vi—Mn1—O1—C1	168.66 (16)
O5^iii—Na1—Mn1—O1	177.87 (5)	O5—Mn1—O1—Na1^vi	−89.89 (18)
O4^i—Na1—Mn1—O1	−22.03 (6)	O7—Mn1—O1—Na1^vi	106.15 (6)
C3^iii—Na1—Mn1—O1	157.62 (5)	O6^v—Mn1—O1—Na1^vi	−69.69 (6)
Mn1^ii—Na1—Mn1—O1	6.34 (4)	O4^iv—Mn1—O1—Na1^vi	19.23 (6)
Na1^ii—Na1—Mn1—O1	38.17 (7)	O3—Mn1—O1—Na1^vi	−170.21 (7)
Na1^vi—Na1—Mn1—O1	−35.49 (4)	Na1—Mn1—O1—Na1^vi	65.25 (5)
O2^i—Na1—Mn1—O5	63.21 (6)	O1—Mn1—O3—C2	−9.55 (11)
O1^ii—Na1—Mn1—O5	−152.38 (5)	O5—Mn1—O3—C2	−173.45 (12)
O6^iii—Na1—Mn1—O5	−52.33 (6)	O7—Mn1—O3—C2	94.20 (12)
O7—Na1—Mn1—O5	−73.92 (6)	O6^v—Mn1—O3—C2	−94.91 (12)
O4^iv—Na1—Mn1—O5	89.12 (6)	O4^iv—Mn1—O3—C2	14.2 (2)
O5^iii—Na1—Mn1—O5	−9.17 (7)	Na1—Mn1—O3—C2	65.79 (12)
O4^i—Na1—Mn1—O5	150.93 (6)	Na1^vi—Mn1—O3—C2	−15.96 (12)
C3^iii—Na1—Mn1—O5	−29.42 (6)	O1—Mn1—O5—C3	26.3 (3)
Mn1^ii—Na1—Mn1—O5	179.31 (4)	O7—Mn1—O5—C3	−169.35 (12)
Na1^ii—Na1—Mn1—O5	−148.87 (7)	O6^v—Mn1—O5—C3	5.57 (12)
Na1^vi—Na1—Mn1—O5	137.47 (4)	O4^iv—Mn1—O5—C3	−80.12 (13)
O2^i—Na1—Mn1—O7	137.13 (7)	O3—Mn1—O5—C3	103.03 (13)
O1^ii—Na1—Mn1—O7	−78.46 (6)	Na1—Mn1—O5—C3	−127.40 (12)
O6^iii—Na1—Mn1—O7	21.58 (6)	Na1^vi—Mn1—O5—C3	−43.73 (15)
O4^iv—Na1—Mn1—O7	163.03 (7)	O1—Mn1—O5—Na1^iii	−178.56 (14)
O5^iii—Na1—Mn1—O7	64.74 (6)	O7—Mn1—O5—Na1^iii	−14.22 (19)
O4^i—Na1—Mn1—O7	−135.15 (8)	O6^v—Mn1—O5—Na1^iii	160.70 (19)
C3^iii—Na1—Mn1—O7	44.50 (6)	O4^iv—Mn1—O5—Na1^iii	75.01 (19)
Mn1^ii—Na1—Mn1—O7	−106.78 (6)	O3—Mn1—O5—Na1^iii	−101.84 (18)
Na1^ii—Na1—Mn1—O7	−74.95 (8)	Na1—Mn1—O5—Na1^iii	27.73 (19)
Na1^vi—Na1—Mn1—O7	−148.61 (5)	Na1^vi—Mn1—O5—Na1^iii	111.40 (17)
O2^i—Na1—Mn1—O6^v	−26.93 (7)	O1—Mn1—O7—Na1	−69.96 (6)
O1^ii—Na1—Mn1—O6^v	117.49 (6)	O5—Mn1—O7—Na1	114.42 (6)
O6^iii—Na1—Mn1—O6^v	−142.47 (8)	O6^v—Mn1—O7—Na1	88.3 (3)
O7—Na1—Mn1—O6^v	−164.05 (7)	O4^iv—Mn1—O7—Na1	12.09 (5)
O4^iv—Na1—Mn1—O6^v	−1.02 (7)	O3—Mn1—O7—Na1	−144.46 (5)
O5^iii—Na1—Mn1—O6^v	−99.31 (6)	Na1^vi—Mn1—O7—Na1	−31.69 (5)
O4^i—Na1—Mn1—O6^v	60.79 (7)	O2^i—Na1—O7—Mn1	−73.35 (10)
C3^iii—Na1—Mn1—O6^v	−119.56 (6)	O1^ii—Na1—O7—Mn1	99.18 (5)
Mn1^ii—Na1—Mn1—O6^v	89.17 (6)	O6^iii—Na1—O7—Mn1	−161.78 (5)
Na1^ii—Na1—Mn1—O6^v	121.00 (7)	O4^iv—Na1—O7—Mn1	−10.70 (4)
Na1^vi—Na1—Mn1—O6^v	47.34 (5)	O5^iii—Na1—O7—Mn1	−110.03 (5)
O2^i—Na1—Mn1—O4^iv	−25.91 (6)	O4^i—Na1—O7—Mn1	98.19 (10)
O1^ii—Na1—Mn1—O4^iv	118.50 (6)	C3^iii—Na1—O7—Mn1	−136.63 (6)
O6^iii—Na1—Mn1—O4^iv	−141.45 (7)	Mn1^ii—Na1—O7—Mn1	88.85 (5)
O7—Na1—Mn1—O4^iv	−163.03 (7)	Na1^ii—Na1—O7—Mn1	150.99 (4)
O5^iii—Na1—Mn1—O4^iv	−98.29 (6)	Na1^vi—Na1—O7—Mn1	25.32 (4)
O4^i—Na1—Mn1—O4^iv	61.81 (6)	Na1^vii—O2—C1—O1	−177.19 (13)
C3^iii—Na1—Mn1—O4^iv	−118.54 (6)	Na1^vii—O2—C1—C2	3.4 (2)
Mn1^ii—Na1—Mn1—O4^iv	90.19 (5)	Mn1—O1—C1—O2	−168.96 (14)
Na1^ii—Na1—Mn1—O4^iv	122.01 (9)	Na1^vi—O1—C1—O2	−3.7 (3)
Na1^vi—Na1—Mn1—O4^iv	48.36 (5)	Mn1—O1—C1—C2	10.45 (19)
O2^i—Na1—Mn1—O3	−179.73 (6)	Na1^vi—O1—C1—C2	175.74 (11)
O1^ii—Na1—Mn1—O3	−35.32 (5)	Mn1—O3—C2—O4	−162.51 (15)
O6^iii—Na1—Mn1—O3	64.72 (6)	Mn1—O3—C2—C1	17.43 (18)
O7—Na1—Mn1—O3	43.14 (6)	Mn1^viii—O4—C2—O3	−34.9 (3)
O4^iv—Na1—Mn1—O3	−153.83 (6)	Na1^viii—O4—C2—O3	87.01 (19)
O5^iii—Na1—Mn1—O3	107.88 (5)	Na1^vii—O4—C2—O3	−157.33 (15)
O4^i—Na1—Mn1—O3	−92.01 (6)	Mn1^viii—O4—C2—C1	145.13 (13)
C3^iii—Na1—Mn1—O3	87.64 (6)	Na1^viii—O4—C2—C1	−92.93 (14)
Mn1^ii—Na1—Mn1—O3	−63.64 (4)	Na1^vii—O4—C2—C1	22.73 (17)
Na1^ii—Na1—Mn1—O3	−31.81 (8)	O2—C1—C2—O3	159.90 (16)
Na1^vi—Na1—Mn1—O3	−105.47 (4)	O1—C1—C2—O3	−19.6 (2)
O2^i—Na1—Mn1—Na1^vi	−74.26 (5)	O2—C1—C2—O4	−20.2 (2)
O1^ii—Na1—Mn1—Na1^vi	70.15 (4)	O1—C1—C2—O4	160.39 (15)
O6^iii—Na1—Mn1—Na1^vi	170.19 (4)	Mn1—O5—C3—O6	174.76 (15)
O7—Na1—Mn1—Na1^vi	148.61 (5)	Na1^iii—O5—C3—O6	3.09 (18)
O4^iv—Na1—Mn1—Na1^vi	−48.36 (5)	Mn1—O5—C3—C3^v	−4.7 (2)
O5^iii—Na1—Mn1—Na1^vi	−146.65 (3)	Na1^iii—O5—C3—C3^v	−176.4 (2)
O4^i—Na1—Mn1—Na1^vi	13.46 (6)	Mn1—O5—C3—Na1^iii	171.67 (9)
C3^iii—Na1—Mn1—Na1^vi	−166.89 (4)	Mn1^v—O6—C3—O5	175.21 (15)
Mn1^ii—Na1—Mn1—Na1^vi	41.83 (3)	Na1^iii—O6—C3—O5	−3.5 (2)
Na1^ii—Na1—Mn1—Na1^vi	73.66 (7)	Mn1^v—O6—C3—C3^v	−5.3 (2)
O5—Mn1—O1—C1	78.8 (2)	Na1^iii—O6—C3—C3^v	176.00 (18)
O7—Mn1—O1—C1	−85.19 (13)	Mn1^v—O6—C3—Na1^iii	178.71 (12)

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

Hydrogen-bond geometry (Å, º)

D—H···A	D—H	H···A	D···A	D—H···A
O7—H7A···O2^ii	0.89 (1)	1.83 (1)	2.6877 (19)	161 (2)
O7—H7B···O3^ix	0.89 (1)	1.95 (1)	2.8237 (19)	168 (2)

Symmetry codes: (ii) x, −y+1/2, z−1/2; (ix) −x+1, −y+1, −z+1.