Poly[[triaqua­[μ4-N-(4-carboxyl­ato­phenyl)­iminodiacetato]sodium(I)zinc(II)] dihydrate]

Ma, D.-S.

doi:10.1107/S1600536808036441

Volume 64
Part 12
Page m1523
December 2008

Received 3 November 2008
Accepted 6 November 2008
Online 13 November 2008

Key indicators
Single-crystal X-ray study
T = 291 K
Mean (C-C) = 0.003 Å
R = 0.026
wR = 0.065
Data-to-parameter ratio = 16.2
Details

Poly[[triaqua[₄-N-(4-carboxylatophenyl)iminodiacetato]sodium(I)zinc(II)] dihydrate]

Dong-Sheng Ma ^a ^*

^aCollege of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, People's Republic of China
Correspondence e-mail: hgf1000@163.com

In the title coordination polymer, {[NaZn(C₁₁H₈NO₆)(H₂O)₃]·2H₂O}_n, the Zn atom is coordinated in a distorted tetrahedral environment by three carboxylate O atoms from two (4-carboxylatophenylimino)diacetate ligands and one water molecule; the Na atom is in an distorted octahedral coordination environment formed by four carboxylate O atoms from three (4-carboxylatophenylimino)diacetate ligands and two water molecules. The Zn atoms and Na atoms are linked by (4-carboxylatophenylimino)diacetate ligands into a three-dimensional framework; the uncoordinated water molecules fill the voids of the skeleton and stabilize it by O-HO hydrogen bonds.

Related literature

For the synthesis of 2,2'-(4-carboxyphenylazanediyl)diacetic acid, see: Young & Sweet (1958).

Experimental

Crystal data

[NaZn(C₁₁H₈NO₆)(H₂O)₃]·2H₂O
M_r = 428.62
Triclinic, $[P \overline 1]$
a = 7.925 (4) Å
b = 8.989 (6) Å
c = 11.726 (6) Å
= 96.28 (3)°
= 98.63 (2)°
= 98.97 (2)°
V = 808.1 (8) Å³
Z = 2
Mo K radiation
= 1.61 mm^-1
T = 291 (2) K
0.22 × 0.18 × 0.16 mm

Data collection

Rigaku R-AXIS RAPID diffractometer
Absorption correction: multi-scan (ABSCOR; Higashi, 1995) T_min = 0.718, T_max = 0.782
8055 measured reflections
3668 independent reflections
3320 reflections with I > 2(I)
R_int = 0.021

Refinement

R[F² > 2(F²)] = 0.026
wR(F²) = 0.065
S = 1.10
3668 reflections
226 parameters
H-atom parameters constrained
_max = 0.28 e Å^-3
_min = -0.44 e Å^-3

Table 1
Hydrogen-bond geometry (Å, °)

D-HA	D-H	HA	DA	D-HA
O7-H10O9ⁱ	0.85	1.87	2.716 (3)	174
O7-H9O5ⁱⁱ	0.85	2.06	2.867 (2)	159
O8-H12O5ⁱⁱⁱ	0.85	1.90	2.748 (3)	173
O8-H11O11ⁱ	0.85	1.97	2.798 (2)	163
O9-H14O1^iv	0.85	2.07	2.910 (2)	168
O9-H13O8ⁱ	0.85	1.96	2.801 (2)	172
O10-H17O1^iv	0.85	1.92	2.762 (3)	174
O11-H15O6^vi	0.85	2.16	2.949 (3)	154
O11-H16O10	0.85	1.89	2.721 (3)	165
Symmetry codes: (i) -x+2, -y+1, -z+1; (ii) x, y, z-1; (iii) -x+2, -y+1, -z+2; (iv) -x+1, -y+1, -z+1; (v) -x+1, -y+1, -z; (vi) x, y+1, z-1.

Data collection: RAPID-AUTO (Rigaku, 1998); cell refinement: 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: SHELXL97.

Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: NG2512 ).

Acknowledgements

The authors thank Heilongjiang University for supporting this study.

References

Higashi, T. (1995). ABSCOR. Rigaku Corporation, Tokyo, Japan.
Rigaku (1998). RAPID-AUTO. Rigaku Corporation, Tokyo, Japan.
Rigaku/MSC (2002). CrystalStructure. Rigaku/MSC Inc., The Woodlands, Texas, USA.
Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.
Young, A. & Sweet, T. R. (1958). J. Am. Chem. Soc. 80, 800-803.

metal-organic compounds

Poly[[triaqua[4-N-(4-carboxylatophenyl)iminodiacetato]sodium(I)zinc(II)] dihydrate]