metal-organic compounds
Poly[[(μ4-5-aminoisophthalato)aquairon(II)] dihydrate]
aCollege of Science, Guang Dong Ocean University, Zhanjiang 524088, People's Republic of China
*Correspondence e-mail: songwd60@126.com
In the title three-dimensional coordination polymer, {[Fe(C8H5NO4)(H2O)]·2H2O}n, the FeII atom exhibits a distorted octahedral geometry, being coordinated by one N and four O atoms from four 5-aminoisophthalate ligands and one water molecule. In addition, the is stabilized by numerous O—H⋯O and N—H⋯O hydrogen bonds.
Related literature
For related literature, see: Wu et al. (2002); Zeng et al. (2007); Liao et al. (2006); Li et al. (2006).
Experimental
Crystal data
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Refinement
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Data collection: APEX2 (Bruker, 2004); cell 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
10.1107/S1600536808006326/gk2125sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536808006326/gk2125Isup2.hkl
A mixture of FeCl2 (0.5 mmol), 5-aminoisophthalatic acid (0.5 mmol), NaOH (1 mmol) and H2O (12 ml) was placed in a 23 ml Teflon reactor, which was heated at 433 K for three days and then cooled to room temperature at a rate of 5 K h-1. Single crystals were obtained after washing with water and drying in air.
All H atoms attached to C and N atoms were fixed geometrically and treated as riding on their parent atoms with C—H = 0.93 Å (aromatic), N—H = 0.90 Å and Uiso(H) = 1.2 Ueq(C,N). H atoms from water molecules were located in difference Fourier maps and included in the subsequent
using restraints [O—H= 0.82 (1) Å and H···H= 1.34 (2) Å] with Uiso(H) = 1.5Ueq(O).Data collection: APEX2 (Bruker, 2004); cell
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).Fig. 1. The structure of (I), showing the atom-numbering scheme and displacement ellipsoids drawn at the 50% probability level. H atoms have been omitted for clarity. [Symmetry codes: (i) -1 + x, y, z + 1; (ii) -x, 2 - y, 2 - z; (iii) 1 - x, 1 - y, 2 - z]] | |
Fig. 2. The three-dimensional network structure of the title compound, viewed along the b axis. |
[Fe(C8H5NO4)(H2O)]·2H2O | Z = 2 |
Mr = 289.03 | F(000) = 296 |
Triclinic, P1 | Dx = 1.863 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 7.7418 (2) Å | Cell parameters from 1800 reflections |
b = 8.5972 (2) Å | θ = 1.4–28.0° |
c = 8.6938 (2) Å | µ = 1.49 mm−1 |
α = 85.560 (1)° | T = 293 K |
β = 76.058 (1)° | Block, red |
γ = 66.610 (1)° | 0.20 × 0.18 × 0.17 mm |
V = 515.34 (2) Å3 |
Bruker APEXII area-detector diffractometer | 2009 independent reflections |
Radiation source: fine-focus sealed tube | 1895 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.017 |
ϕ and ω scans | θmax = 26.0°, θmin = 2.4° |
Absorption correction: multi-scan (SADABS; Bruker, 2004) | h = −9→9 |
Tmin = 0.755, Tmax = 0.786 | k = −10→10 |
5025 measured reflections | l = −10→10 |
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)] = 0.030 | Hydrogen site location: difference Fourier map |
wR(F2) = 0.090 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.05 | w = 1/[σ2(Fo2) + (0.0536P)2 + 0.5412P] where P = (Fo2 + 2Fc2)/3 |
2009 reflections | (Δ/σ)max = 0.001 |
172 parameters | Δρmax = 0.37 e Å−3 |
11 restraints | Δρmin = −0.57 e Å−3 |
[Fe(C8H5NO4)(H2O)]·2H2O | γ = 66.610 (1)° |
Mr = 289.03 | V = 515.34 (2) Å3 |
Triclinic, P1 | Z = 2 |
a = 7.7418 (2) Å | Mo Kα radiation |
b = 8.5972 (2) Å | µ = 1.49 mm−1 |
c = 8.6938 (2) Å | T = 293 K |
α = 85.560 (1)° | 0.20 × 0.18 × 0.17 mm |
β = 76.058 (1)° |
Bruker APEXII area-detector diffractometer | 2009 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2004) | 1895 reflections with I > 2σ(I) |
Tmin = 0.755, Tmax = 0.786 | Rint = 0.017 |
5025 measured reflections |
R[F2 > 2σ(F2)] = 0.030 | 11 restraints |
wR(F2) = 0.090 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.05 | Δρmax = 0.37 e Å−3 |
2009 reflections | Δρmin = −0.57 e Å−3 |
172 parameters |
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 | ||
C1 | 0.2799 (3) | 0.8073 (3) | 0.9011 (2) | 0.0165 (4) | |
C2 | 0.4454 (3) | 0.7019 (3) | 0.7727 (2) | 0.0161 (4) | |
C3 | 0.5442 (3) | 0.7791 (3) | 0.6593 (2) | 0.0172 (4) | |
H3 | 0.5097 | 0.8957 | 0.6633 | 0.021* | |
C4 | 0.6955 (3) | 0.6798 (3) | 0.5397 (2) | 0.0168 (4) | |
C5 | 0.7464 (3) | 0.5058 (3) | 0.5320 (2) | 0.0178 (4) | |
H5 | 0.8434 | 0.4414 | 0.4487 | 0.021* | |
C6 | 0.6522 (3) | 0.4277 (3) | 0.6494 (2) | 0.0167 (4) | |
C7 | 0.5018 (3) | 0.5267 (3) | 0.7692 (2) | 0.0178 (4) | |
H7 | 0.4382 | 0.4755 | 0.8476 | 0.021* | |
C8 | 0.8096 (3) | 0.7607 (3) | 0.4223 (2) | 0.0178 (4) | |
Fe1 | 0.02840 (4) | 0.88499 (4) | 1.21504 (3) | 0.01967 (14) | |
N1 | 0.7168 (3) | 0.2480 (2) | 0.6517 (2) | 0.0204 (4) | |
H1A | 0.7573 | 0.2077 | 0.5513 | 0.025* | |
H1B | 0.6164 | 0.2203 | 0.6995 | 0.025* | |
O1 | 0.2198 (2) | 0.7325 (2) | 1.01815 (18) | 0.0251 (4) | |
O2 | 0.2094 (2) | 0.96615 (19) | 0.88749 (19) | 0.0208 (3) | |
O3 | 0.8199 (3) | 0.8942 (2) | 0.46223 (19) | 0.0243 (4) | |
O4 | 0.8971 (2) | 0.6932 (2) | 0.28758 (18) | 0.0252 (4) | |
O1W | 0.0523 (3) | 1.1127 (2) | 1.2728 (2) | 0.0341 (4) | |
H1W | 0.112 (5) | 1.105 (4) | 1.340 (3) | 0.051* | |
H2W | 0.065 (5) | 1.189 (3) | 1.217 (3) | 0.051* | |
O2W | 0.0978 (4) | 0.3865 (3) | 0.1118 (3) | 0.0480 (6) | |
H4W | 0.074 (5) | 0.464 (4) | 0.177 (4) | 0.072* | |
H3W | −0.001 (3) | 0.401 (3) | 0.078 (3) | 0.072* | |
O3W | 0.4365 (3) | 0.1532 (3) | 0.9066 (3) | 0.0482 (6) | |
H5W | 0.376 (5) | 0.110 (5) | 0.867 (5) | 0.072* | |
H6W | 0.360 (4) | 0.231 (4) | 0.972 (4) | 0.072* |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0130 (10) | 0.0204 (11) | 0.0149 (10) | −0.0057 (9) | −0.0015 (8) | −0.0024 (8) |
C2 | 0.0146 (10) | 0.0162 (11) | 0.0146 (9) | −0.0043 (9) | −0.0008 (8) | 0.0006 (8) |
C3 | 0.0171 (10) | 0.0140 (10) | 0.0172 (10) | −0.0045 (8) | −0.0007 (8) | 0.0008 (8) |
C4 | 0.0159 (10) | 0.0189 (11) | 0.0144 (9) | −0.0070 (9) | −0.0015 (8) | 0.0023 (8) |
C5 | 0.0155 (10) | 0.0177 (11) | 0.0152 (10) | −0.0034 (9) | 0.0014 (8) | −0.0031 (8) |
C6 | 0.0167 (10) | 0.0141 (10) | 0.0180 (10) | −0.0047 (9) | −0.0040 (8) | 0.0008 (8) |
C7 | 0.0171 (10) | 0.0172 (11) | 0.0162 (10) | −0.0065 (9) | 0.0003 (8) | 0.0020 (8) |
C8 | 0.0143 (10) | 0.0189 (11) | 0.0164 (10) | −0.0045 (9) | −0.0015 (8) | 0.0046 (8) |
Fe1 | 0.0206 (2) | 0.0162 (2) | 0.0187 (2) | −0.00647 (15) | 0.00079 (13) | −0.00049 (12) |
N1 | 0.0215 (10) | 0.0140 (9) | 0.0234 (9) | −0.0064 (8) | −0.0008 (7) | −0.0024 (7) |
O1 | 0.0263 (9) | 0.0215 (8) | 0.0176 (8) | −0.0064 (7) | 0.0075 (6) | 0.0003 (6) |
O2 | 0.0173 (8) | 0.0148 (8) | 0.0255 (8) | −0.0027 (6) | −0.0020 (6) | −0.0015 (6) |
O3 | 0.0296 (9) | 0.0217 (8) | 0.0216 (8) | −0.0140 (7) | 0.0013 (7) | 0.0010 (6) |
O4 | 0.0289 (9) | 0.0252 (9) | 0.0169 (8) | −0.0124 (8) | 0.0065 (6) | −0.0010 (6) |
O1W | 0.0553 (13) | 0.0231 (9) | 0.0353 (10) | −0.0223 (9) | −0.0204 (9) | 0.0055 (7) |
O2W | 0.0719 (16) | 0.0267 (10) | 0.0453 (12) | −0.0136 (11) | −0.0229 (11) | −0.0003 (9) |
O3W | 0.0409 (12) | 0.0553 (15) | 0.0587 (14) | −0.0314 (11) | −0.0048 (10) | −0.0085 (11) |
C1—O1 | 1.254 (3) | C8—O3 | 1.262 (3) |
C1—O2 | 1.262 (3) | Fe1—O1 | 2.1040 (16) |
C1—C2 | 1.502 (3) | Fe1—O2i | 2.1364 (16) |
C2—C3 | 1.392 (3) | Fe1—O1W | 2.1458 (17) |
C2—C7 | 1.393 (3) | Fe1—O4ii | 2.2387 (17) |
C3—C4 | 1.392 (3) | Fe1—O3ii | 2.3416 (16) |
C3—H3 | 0.9300 | Fe1—N1iii | 2.376 (2) |
C4—C5 | 1.390 (3) | N1—H1A | 0.9000 |
C4—C8 | 1.499 (3) | N1—H1B | 0.9000 |
C5—C6 | 1.396 (3) | O1W—H1W | 0.815 (10) |
C5—H5 | 0.9300 | O1W—H2W | 0.809 (9) |
C6—C7 | 1.390 (3) | O2W—H4W | 0.842 (10) |
C6—N1 | 1.422 (3) | O2W—H3W | 0.844 (10) |
C7—H7 | 0.9300 | O3W—H5W | 0.843 (10) |
C8—O4 | 1.256 (3) | O3W—H6W | 0.840 (10) |
O1—C1—O2 | 123.12 (19) | O1—Fe1—O4ii | 90.79 (6) |
O1—C1—C2 | 118.08 (19) | O2i—Fe1—O4ii | 89.97 (6) |
O2—C1—C2 | 118.80 (18) | O1W—Fe1—O4ii | 148.03 (7) |
C3—C2—C7 | 120.2 (2) | O1—Fe1—O3ii | 145.97 (6) |
C3—C2—C1 | 119.97 (19) | O2i—Fe1—O3ii | 91.37 (6) |
C7—C2—C1 | 119.81 (19) | O1W—Fe1—O3ii | 90.96 (7) |
C2—C3—C4 | 119.2 (2) | O4ii—Fe1—O3ii | 57.10 (6) |
C2—C3—H3 | 120.4 | O1—Fe1—N1iii | 85.72 (7) |
C4—C3—H3 | 120.4 | O2i—Fe1—N1iii | 172.50 (6) |
C5—C4—C3 | 120.64 (19) | O1W—Fe1—N1iii | 83.48 (7) |
C5—C4—C8 | 119.82 (19) | O4ii—Fe1—N1iii | 94.39 (7) |
C3—C4—C8 | 119.5 (2) | O3ii—Fe1—N1iii | 85.91 (6) |
C4—C5—C6 | 120.03 (19) | C6—N1—Fe1iii | 113.51 (14) |
C4—C5—H5 | 120.0 | C6—N1—H1A | 108.9 |
C6—C5—H5 | 120.0 | Fe1iii—N1—H1A | 108.9 |
C7—C6—C5 | 119.3 (2) | C6—N1—H1B | 108.9 |
C7—C6—N1 | 120.25 (19) | Fe1iii—N1—H1B | 108.9 |
C5—C6—N1 | 120.36 (19) | H1A—N1—H1B | 107.7 |
C6—C7—C2 | 120.5 (2) | C1—O1—Fe1 | 116.73 (14) |
C6—C7—H7 | 119.7 | C1—O2—Fe1i | 127.68 (14) |
C2—C7—H7 | 119.7 | C8—O3—Fe1iv | 88.55 (12) |
O4—C8—O3 | 120.90 (19) | C8—O4—Fe1iv | 93.43 (13) |
O4—C8—C4 | 119.9 (2) | Fe1—O1W—H1W | 116 (2) |
O3—C8—C4 | 119.15 (19) | Fe1—O1W—H2W | 130 (2) |
O1—Fe1—O2i | 100.34 (7) | H1W—O1W—H2W | 105.6 (16) |
O1—Fe1—O1W | 120.69 (8) | H4W—O2W—H3W | 110.9 (17) |
O2i—Fe1—O1W | 89.59 (7) | H5W—O3W—H6W | 111.2 (18) |
Symmetry codes: (i) −x, −y+2, −z+2; (ii) x−1, y, z+1; (iii) −x+1, −y+1, −z+2; (iv) x+1, y, z−1. |
D—H···A | D—H | H···A | D···A | D—H···A |
O2W—H3W···O2Wv | 0.84 (1) | 2.38 (1) | 2.892 (5) | 120 (1) |
O3W—H5W···O2vi | 0.84 (1) | 2.09 (2) | 2.852 (3) | 151 (4) |
O3W—H6W···O2Wvii | 0.84 (1) | 2.07 (2) | 2.865 (3) | 157 (3) |
O2W—H4W···O4viii | 0.84 (1) | 2.05 (2) | 2.816 (3) | 151 (3) |
O1W—H2W···O2Wix | 0.81 (1) | 1.94 (1) | 2.745 (3) | 171 (3) |
O1W—H1W···O3x | 0.82 (1) | 1.91 (1) | 2.705 (3) | 163 (4) |
N1—H1B···O3W | 0.90 | 2.19 | 3.015 (3) | 153 |
Symmetry codes: (v) −x, −y+1, −z; (vi) x, y−1, z; (vii) x, y, z+1; (viii) x−1, y, z; (ix) x, y+1, z+1; (x) −x+1, −y+2, −z+2. |
Experimental details
Crystal data | |
Chemical formula | [Fe(C8H5NO4)(H2O)]·2H2O |
Mr | 289.03 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 293 |
a, b, c (Å) | 7.7418 (2), 8.5972 (2), 8.6938 (2) |
α, β, γ (°) | 85.560 (1), 76.058 (1), 66.610 (1) |
V (Å3) | 515.34 (2) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 1.49 |
Crystal size (mm) | 0.20 × 0.18 × 0.17 |
Data collection | |
Diffractometer | Bruker APEXII area-detector diffractometer |
Absorption correction | Multi-scan (SADABS; Bruker, 2004) |
Tmin, Tmax | 0.755, 0.786 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 5025, 2009, 1895 |
Rint | 0.017 |
(sin θ/λ)max (Å−1) | 0.617 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.030, 0.090, 1.05 |
No. of reflections | 2009 |
No. of parameters | 172 |
No. of restraints | 11 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.37, −0.57 |
Computer programs: APEX2 (Bruker, 2004), SAINT (Bruker, 2004), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).
Fe1—O1 | 2.1040 (16) | Fe1—O4ii | 2.2387 (17) |
Fe1—O2i | 2.1364 (16) | Fe1—O3ii | 2.3416 (16) |
Fe1—O1W | 2.1458 (17) | Fe1—N1iii | 2.376 (2) |
Symmetry codes: (i) −x, −y+2, −z+2; (ii) x−1, y, z+1; (iii) −x+1, −y+1, −z+2. |
D—H···A | D—H | H···A | D···A | D—H···A |
O2W—H3W···O2Wiv | 0.844 (10) | 2.377 (9) | 2.892 (5) | 119.9 (9) |
O3W—H5W···O2v | 0.843 (10) | 2.09 (2) | 2.852 (3) | 151 (4) |
O3W—H6W···O2Wvi | 0.840 (10) | 2.071 (19) | 2.865 (3) | 157 (3) |
O2W—H4W···O4vii | 0.842 (10) | 2.05 (2) | 2.816 (3) | 151 (3) |
O1W—H2W···O2Wviii | 0.809 (9) | 1.943 (12) | 2.745 (3) | 171 (3) |
O1W—H1W···O3ix | 0.815 (10) | 1.914 (14) | 2.705 (3) | 163 (4) |
N1—H1B···O3W | 0.90 | 2.19 | 3.015 (3) | 153 |
Symmetry codes: (iv) −x, −y+1, −z; (v) x, y−1, z; (vi) x, y, z+1; (vii) x−1, y, z; (viii) x, y+1, z+1; (ix) −x+1, −y+2, −z+2. |
Acknowledgements
The authors thank Guang Dong Ocean University for supporting this study.
References
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5-Aminoisophthalatic acid is a good example of a bridging ligand that can link metal centres into extended networks, and a number of one-, two- and three- dimensional coordination frameworks have been generated (Zeng et al., 2007; Wu et al., 2002; Liao et al. 2006). Recently, we have obtained the title three-dimensional iron polymer, (I), and its crystal structure is reported here. This complex is isostructural with the MnII complex reported by Liao and Yao (2006) and by Li et al. (2006).
In the structure of (I) each FeII atom is coordinated by four O atoms from three 5-aminoisophthalate ligands, one N atom from another 5-aminoisophthalate ligand and one water molecule, and displays a distorted octahedral coordination geometry. The 5-aminoisophthalate ligands bridge iron ions to form a three-dimensional network (Fig. 2). Moreover, there are O—H···O and N—H···O hydrogen-bonding interactions within the three-dimensional structure connecting the carboxyl O atoms and amino N atoms of 5-aminoisophthalate ligands, the coordinating water molecules and water of crystallization (Table 2).