catena-Poly[[[diaqua­manganese(II)]-μ3-pyridine-2,3-dicarboxyl­ato-κ4N,O2:O3:O3′] dihydrate]

Du, Z.-X.; Li, J.-X.

doi:10.1107/S1600536808029413

Volume 64
Part 10
Pages m1295-m1296
October 2008

Received 4 September 2008
Accepted 13 September 2008
Online 20 September 2008

Key indicators
Single-crystal X-ray study
T = 291 K
Mean (C-C) = 0.005 Å
R = 0.035
wR = 0.095
Data-to-parameter ratio = 12.5
Details

catena-Poly[[[diaquamanganese(II)]-₃-pyridine-2,3-dicarboxylato-⁴N,O²:O³:O^3'] dihydrate]

Zhong-Xiang Du ^a ^* and Jun-Xia Li ^a

^aDepartment of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang, Henan 471022, People's Republic of China
Correspondence e-mail: dzx101012@126.com

In the title coordination polymer, {[Mn(C₇H₃NO₄)(H₂O)₂]·2H₂O}_n, the Mn^II ion is coordinated in a distorted octahedral environment by the O atoms of two water molecules, one N and one O atoms of the chelating pyridine-2,3-dicarboxylate (PDC) dianion, and two axial bridging carboxylate O atoms from two adjacent PDC ligands. The fully deprotonated PDC anion acts a [mu] ₃-bridging ligand, establishing a chain structure along the a axis. These polymeric chains are connected into a three-dimensional framework via several intermolecular O-HO hydrogen bonds.

Related literature

For related literature, see: Aghabozorg et al. (2007); Baruah et al. (2007); Drew et al. (1971); Ghoer & Youssef (1993); Kang et al. (2006); Li et al. (2006); Manteghi et al. (2007); Patrick et al. (2003); Sun et al. (2006); Takusagawa & Koetzle (1978); Turner & Batten (2007); Zhang & You (2003); Zhang et al. (2003).

Experimental

Crystal data

[Mn(C₇H₃NO₄)(H₂O)₂]·2H₂O
M_r = 292.11
Monoclinic, P 2₁ /c
a = 6.5719 (8) Å
b = 7.6703 (9) Å
c = 20.566 (3) Å
= 93.3540 (10)°
V = 1034.9 (2) Å³
Z = 4
Mo K radiation
= 1.31 mm^-1
T = 291 (2) K
0.38 × 0.15 × 0.11 mm

Data collection

Bruker APEXII CCD area-detector diffractometer
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) T_min = 0.639, T_max = 0.865
6428 measured reflections
1921 independent reflections
1774 reflections with I > 2(I)
R_int = 0.015

Refinement

R[F² > 2(F²)] = 0.035
wR(F²) = 0.095
S = 1.07
1921 reflections
154 parameters
3 restraints
H-atom parameters constrained
_max = 0.49 e Å^-3
_min = -0.74 e Å^-3

Table 1
Selected geometric parameters (Å, °)

Mn1-O3	2.098 (3)
Mn1-O4	2.139 (3)
Mn1-O8ⁱ	2.144 (2)
Mn1-O5	2.160 (3)
Mn1-O6ⁱⁱ	2.242 (3)
Mn1-N1ⁱ	2.263 (3)

O3-Mn1-O4	96.07 (11)
O3-Mn1-O8ⁱ	168.80 (10)
O3-Mn1-O5	87.98 (10)
O4-Mn1-O5	87.54 (10)
O8ⁱ-Mn1-O5	95.89 (9)
O3-Mn1-O6ⁱⁱ	84.63 (10)
O5-Mn1-O6ⁱⁱ	164.11 (10)
O4-Mn1-N1ⁱ	166.71 (11)
Symmetry codes: (i) -x+1, -y+2, -z+1; (ii) x+1, y, z.

Table 2
Hydrogen-bond geometry (Å, °)

D-HA	D-H	HA	DA	D-HA
O1-H1WO8	0.84	1.95	2.793 (4)	177
O1-H2WO2ⁱⁱⁱ	0.84	2.09	2.845 (4)	149
O2-H4WO6^iv	0.84	2.07	2.884 (4)	165
O2-H4WO4^v	0.84	2.56	3.043 (4)	118
O2-H3WO4^vi	0.85	1.94	2.788 (4)	180
O3-H5WO7^iv	0.84	1.85	2.691 (4)	175
O3-H6WO1^iv	0.85	1.92	2.730 (4)	159
O4-H8WO1ⁱ	0.85	2.61	3.457 (4)	180
O4-H7WO1^vii	0.84	1.86	2.691 (4)	168
O4-H8WO2^vii	0.85	2.37	2.788 (4)	111
Symmetry codes: (i) -x+1, -y+2, -z+1; (iii) $[-x+1, y+{\script{1\over 2}}, -z+{\script{3\over 2}}]$ ; (iv) -x+1, -y+1, -z+1; (v) -x+2, -y+1, -z+1; (vi) $[x, -y+{\script{3\over 2}}, z+{\script{1\over 2}}]$ ; (vii) $[x, -y+{\script{3\over 2}}, z-{\script{1\over 2}}]$ .

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

Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: SG2261 ).

Acknowledgements

This work was supported by the National Natural Science Foundation of China (grant No. 20471026) and the Natural Science Foundation of Henan Province (grant No. 0311021200).

References

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