metal-organic compounds
Di-μ-hydroxido-bis[aqua(pyridine-2,6-dicarboxylato)iron(III)] monohydrate
aDepartment of Chemistry, School of Sciences, Ferdowsi University of Mashhad, Mashhad, Iran, and bDepartment of Chemistry, Purdue University, W. Lafayette, IN 47907, USA
*Correspondence e-mail: heshtiagh@um.ac.ir, pfanwick@purdue.edu
In the dinuclear title complex, [Fe2(OH)2(C7H3NO4)2(H2O)2]·H2O, the two Fe atoms are separated by 3.063 (1) Å. Intermolecular O—H⋯O hydrogen bonds form an extensive three-dimensional hydrogen-bonding network, which consolidates the crystal packing.
Related literature
The et al. (1976). For related structures, see: Aghabozorg et al. (2008); Eshtiagh-Hosseini et al. (2010).
of the anhydrous form of the title dinuclear complex has been reported by ThichExperimental
Crystal data
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Refinement
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Data collection: CrystalClear (Rigaku, 2001); cell DENZO/SCALEPACK (Otwinowski & Minor, 1997); data reduction: DENZO/SCALEPACK; method used to solve structure: (Oszlányi & Sütő, 2004) implemented in PLATON (Spek, 2009); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEPII (Johnson, 1976) and PLATON; software used to prepare material for publication: SHELXL97.
Supporting information
https://doi.org/10.1107/S1600536810041966/cv2763sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536810041966/cv2763Isup2.hkl
A solution of FeCl3.6H2O was added to a mixture of pydcH2 and bmpa in molar ratios of 1:2:2, respectively. The obtained solution was refluxed for 6 hrs in the 343 K. Suitable orange chunk [(µ-OH)2Fe2(pydc)2(H2O)2].H2O crystals for single crystal X-ray
were obtained after slow evaporation of solvent in R.T.C-bound H atoms were geometrically positioned (C—H 0.93 Å) and refined as riding, with Uiso(H)=1.2Ueq(C). O-bound H atoms were located on a difference map and isotropically refined.
In continuation of our structural study of coordination compounds bearing different dicaroxylic acid and amine base fragments via proton transfer methodology (Aghabozorg et al., 2008 and references therein; Eshtiagh-Hosseini et al. 2010), we present here the title compound, (I). The
of anhydrous form of I already has been reported by Thich et al. (1976); [(pydc)H2OFeOH]2 (II). The considerable feature of the title compound, is that the basic properties of (pydc)2- did not allow 5-bromo-6-methyl-2-(4-methylpiperazine-1-yl)pyrimidine-4-amine (bmpa) participitate in the crystalline network. The other interesting point is that two FeIII ions have different chemical environment making them non equivalent but with similar coordination geometry, that is, each FeIII ion is hexa-coordinated by one tridentate (pydc)2-, two µ-hydroxo, and one coordinated water molecule (Fig. 1).The above-mentioned complexes are very similar in terms of molecular structure but with different crystal structures. Both structures consist of [(pydc)H2OFe(OH)]2 dimeric units but the only difference between them is the peresence of a crystalline water molecule in the I.
In I (Fig. 1), all bond lengths and angles are normal and comparable with those observed in anhydrous form of the title dinuclear complex (Thich et al., 1976). In the
intermolecular O—H···O hydrogen bonds (Table 1) form an extensive three-dimensional hydrogen-bonding network, which consolidate the crystal packing. Indeed, firstly, covalent bonds cause to constructe dinuclear skeleton, and then the classical hydrogen bond interactions caused by O—H···O, lead to the self-aggregation process.The
of anhydrous form of the title dinuclear complex has been reported by Thich et al. (1976). For related structures, see: Aghabozorg et al. (2008); Eshtiagh-Hosseini et al. (2010).Data collection: CrystalClear (Rigaku, 2001); cell
DENZO/SCALEPACK (Otwinowski & Minor, 1997); data reduction: DENZO/SCALEPACK (Otwinowski & Minor, 1997); program(s) used to solve structure: (Oszlányi & Sütő, 2004) implemented in PLATON (Spek, 2009); program(s) used to refine structure: SHELX97 (Sheldrick, 2008); molecular graphics: ORTEPII (Johnson, 1976) and PLATON (Spek, 2009); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008).Fig. 1. The molecular structure of I showing the atom-numbering scheme. Displacement ellipsoids are drawn at the 50% probability level. |
[Fe2(OH)2(C7H3NO4)2(H2O2)2]·H2O | F(000) = 1072 |
Mr = 529.97 | Dx = 1.927 Mg m−3 |
Monoclinic, P21/c | Cu - Kα radiation, λ = 1.54184 Å |
Hall symbol: -P 2ybc | Cell parameters from 2932 reflections |
a = 11.4786 (11) Å | θ = 2–63° |
b = 21.7080 (16) Å | µ = 13.53 mm−1 |
c = 7.3291 (6) Å | T = 150 K |
β = 90.099 (7)° | Chunk, orange |
V = 1826.2 (3) Å3 | 0.20 × 0.20 × 0.14 mm |
Z = 4 |
Rigaku Rapid II diffractometer | 2695 reflections with I > 2σ(I) |
Confocal optics monochromator | Rint = 0.048 |
ω scans | θmax = 63.3°, θmin = 2.0° |
Absorption correction: multi-scan (SCALEPACK; Otwinowski & Minor, 1997) | h = −11→12 |
Tmin = 0.120, Tmax = 0.150 | k = −25→0 |
14275 measured reflections | l = 0→8 |
2831 independent reflections |
Refinement on F2 | 0 restraints |
Least-squares matrix: full | H atoms treated by a mixture of independent and constrained refinement |
R[F2 > 2σ(F2)] = 0.057 | w = 1/[σ2(Fo2) + (0.1304P)2 + 0.6186P] where P = (Fo2 + 2Fc2)/3 |
wR(F2) = 0.153 | (Δ/σ)max < 0.001 |
S = 1.07 | Δρmax = 0.97 e Å−3 |
2831 reflections | Δρmin = −0.76 e Å−3 |
311 parameters |
[Fe2(OH)2(C7H3NO4)2(H2O2)2]·H2O | V = 1826.2 (3) Å3 |
Mr = 529.97 | Z = 4 |
Monoclinic, P21/c | Cu - Kα radiation |
a = 11.4786 (11) Å | µ = 13.53 mm−1 |
b = 21.7080 (16) Å | T = 150 K |
c = 7.3291 (6) Å | 0.20 × 0.20 × 0.14 mm |
β = 90.099 (7)° |
Rigaku Rapid II diffractometer | 2831 independent reflections |
Absorption correction: multi-scan (SCALEPACK; Otwinowski & Minor, 1997) | 2695 reflections with I > 2σ(I) |
Tmin = 0.120, Tmax = 0.150 | Rint = 0.048 |
14275 measured reflections |
R[F2 > 2σ(F2)] = 0.057 | 0 restraints |
wR(F2) = 0.153 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.07 | Δρmax = 0.97 e Å−3 |
2831 reflections | Δρmin = −0.76 e Å−3 |
311 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. Outlier data were removed using a local program based on the method of Prince and Nicholson [Prince, E. & Nicholson, W. L. (1983). Acta Cryst. A39, 407–410.] Refinement on F2 for ALL reflections except for 0 with very negative F2 or flagged by the user for potential systematic errors. Weighted R-factors wR and all goodnesses of fit S are based on F2, conventional R-factors R are based on F, with F set to zero for negative F2. The observed criterion of F2 > σ(F2) is used only for calculating R_factor_obs 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 | ||
Fe1 | 0.63100 (5) | 0.12044 (2) | 0.72067 (7) | 0.0080 (3) | |
Fe2 | 0.89320 (5) | 0.11910 (2) | 0.79919 (7) | 0.0082 (3) | |
O1 | 0.7813 (3) | 0.11982 (10) | 0.5976 (4) | 0.0131 (7) | |
O2 | 0.7419 (3) | 0.11662 (10) | 0.9247 (4) | 0.0111 (6) | |
O11 | 0.6011 (2) | 0.02831 (10) | 0.6877 (3) | 0.0135 (6) | |
O12 | 0.4819 (2) | −0.05113 (9) | 0.7494 (3) | 0.0161 (6) | |
O13 | 0.57708 (19) | 0.20747 (9) | 0.8073 (3) | 0.0115 (5) | |
O14 | 0.4320 (2) | 0.26115 (10) | 0.9362 (3) | 0.0186 (6) | |
O15 | 0.5550 (2) | 0.14072 (12) | 0.4813 (3) | 0.0159 (6) | |
O1W | 0.7628 (2) | 0.19217 (14) | 0.2554 (3) | 0.0220 (7) | |
O22 | 1.0531 (2) | −0.04764 (10) | 0.7153 (3) | 0.0163 (6) | |
O23 | 0.9419 (2) | 0.20979 (9) | 0.7383 (3) | 0.0133 (5) | |
O24 | 1.0833 (2) | 0.26950 (10) | 0.6214 (3) | 0.0191 (6) | |
O25 | 0.9767 (2) | 0.13003 (13) | 1.0362 (4) | 0.0150 (6) | |
O221 | 0.9281 (2) | 0.02666 (10) | 0.8040 (3) | 0.0118 (5) | |
N11 | 0.4717 (2) | 0.10535 (13) | 0.8448 (4) | 0.0076 (6) | |
N21 | 1.0478 (3) | 0.11096 (12) | 0.6582 (4) | 0.0091 (7) | |
C12 | 0.4279 (3) | 0.04863 (14) | 0.8479 (4) | 0.0109 (7) | |
C13 | 0.3222 (3) | 0.03599 (14) | 0.9274 (4) | 0.0123 (7) | |
C14 | 0.2600 (3) | 0.08500 (16) | 1.0037 (4) | 0.0164 (8) | |
C15 | 0.3062 (3) | 0.14464 (15) | 0.9951 (4) | 0.0154 (8) | |
C16 | 0.4128 (3) | 0.15301 (15) | 0.9138 (4) | 0.0111 (7) | |
C17 | 0.5088 (3) | 0.00355 (14) | 0.7540 (4) | 0.0110 (7) | |
C18 | 0.4780 (3) | 0.21304 (14) | 0.8853 (4) | 0.0116 (7) | |
C22 | 1.0924 (3) | 0.05521 (14) | 0.6318 (4) | 0.0100 (7) | |
C23 | 1.1952 (3) | 0.04648 (15) | 0.5364 (4) | 0.0131 (7) | |
C24 | 1.2517 (3) | 0.09854 (16) | 0.4704 (4) | 0.0156 (8) | |
C25 | 1.2059 (3) | 0.15709 (15) | 0.5038 (4) | 0.0149 (7) | |
C26 | 1.1027 (3) | 0.16140 (14) | 0.5996 (4) | 0.0100 (7) | |
C27 | 1.0193 (3) | 0.00617 (14) | 0.7233 (4) | 0.0110 (7) | |
C28 | 1.0388 (3) | 0.21935 (14) | 0.6557 (4) | 0.0125 (7) | |
H1 | 0.799 (5) | 0.132 (2) | 0.514 (8) | 0.026 (14)* | |
H2 | 0.724 (5) | 0.132 (2) | 1.007 (8) | 0.032 (15)* | |
H13 | 0.2930 | −0.0039 | 0.9304 | 0.015* | |
H14 | 0.1886 | 0.0780 | 1.0597 | 0.020* | |
H15 | 0.2656 | 0.1779 | 1.0435 | 0.019* | |
H23 | 1.2253 | 0.0072 | 0.5172 | 0.016* | |
H24 | 1.3201 | 0.0944 | 0.4037 | 0.019* | |
H25 | 1.2440 | 0.1923 | 0.4627 | 0.018* | |
H151 | 0.539 (4) | 0.111 (2) | 0.414 (7) | 0.028 (12)* | |
H152 | 0.522 (4) | 0.173 (2) | 0.474 (6) | 0.041 (14)* | |
H1W1 | 0.817 (4) | 0.2200 (19) | 0.255 (6) | 0.025 (11)* | |
H1W2 | 0.704 (4) | 0.217 (2) | 0.262 (6) | 0.042 (15)* | |
H251 | 1.006 (4) | 0.161 (2) | 1.063 (6) | 0.039 (14)* | |
H252 | 0.973 (5) | 0.106 (2) | 1.101 (8) | 0.047* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Fe1 | 0.0075 (4) | 0.0056 (4) | 0.0109 (4) | 0.00088 (17) | 0.0042 (2) | −0.00093 (16) |
Fe2 | 0.0078 (4) | 0.0058 (4) | 0.0108 (4) | −0.00005 (17) | 0.0047 (2) | 0.00054 (16) |
O1 | 0.0074 (17) | 0.0223 (15) | 0.0096 (14) | −0.0017 (9) | 0.0030 (11) | 0.0039 (9) |
O2 | 0.0066 (16) | 0.0154 (14) | 0.0114 (14) | 0.0015 (9) | 0.0032 (11) | −0.0035 (9) |
O11 | 0.0179 (15) | 0.0068 (11) | 0.0158 (12) | 0.0024 (9) | 0.0035 (10) | −0.0009 (8) |
O12 | 0.0242 (15) | 0.0072 (12) | 0.0170 (11) | −0.0010 (9) | −0.0031 (10) | −0.0016 (8) |
O13 | 0.0120 (14) | 0.0062 (11) | 0.0164 (11) | −0.0011 (9) | 0.0047 (9) | −0.0019 (8) |
O14 | 0.0146 (14) | 0.0089 (11) | 0.0323 (14) | 0.0016 (9) | 0.0049 (10) | −0.0058 (9) |
O15 | 0.0231 (16) | 0.0076 (13) | 0.0169 (13) | 0.0073 (11) | −0.0031 (10) | −0.0043 (10) |
O1W | 0.0215 (18) | 0.0158 (15) | 0.0288 (16) | −0.0023 (11) | 0.0084 (12) | −0.0012 (9) |
O22 | 0.0270 (16) | 0.0077 (12) | 0.0141 (11) | 0.0037 (9) | 0.0041 (10) | 0.0003 (8) |
O23 | 0.0142 (14) | 0.0062 (11) | 0.0195 (12) | 0.0031 (9) | 0.0070 (10) | 0.0022 (8) |
O24 | 0.0188 (15) | 0.0076 (11) | 0.0309 (13) | −0.0019 (10) | 0.0039 (10) | 0.0052 (10) |
O25 | 0.0210 (16) | 0.0102 (12) | 0.0138 (13) | −0.0068 (11) | 0.0003 (11) | 0.0020 (9) |
O221 | 0.0129 (14) | 0.0061 (11) | 0.0164 (11) | −0.0010 (9) | 0.0046 (9) | −0.0012 (8) |
N11 | 0.0020 (16) | 0.0097 (13) | 0.0111 (14) | 0.0001 (11) | 0.0014 (11) | −0.0024 (11) |
N21 | 0.0082 (18) | 0.0089 (14) | 0.0103 (14) | −0.0002 (11) | 0.0013 (12) | 0.0023 (10) |
C12 | 0.0107 (19) | 0.0116 (16) | 0.0104 (15) | −0.0015 (13) | −0.0023 (13) | −0.0011 (12) |
C13 | 0.0108 (19) | 0.0107 (15) | 0.0155 (15) | −0.0052 (13) | −0.0020 (13) | 0.0038 (12) |
C14 | 0.011 (2) | 0.0233 (18) | 0.0154 (16) | −0.0001 (14) | 0.0020 (13) | 0.0030 (13) |
C15 | 0.016 (2) | 0.0147 (17) | 0.0157 (16) | 0.0010 (14) | 0.0053 (14) | −0.0016 (13) |
C16 | 0.012 (2) | 0.0105 (16) | 0.0104 (15) | 0.0042 (13) | 0.0022 (13) | −0.0016 (12) |
C17 | 0.0147 (19) | 0.0079 (16) | 0.0106 (13) | 0.0013 (13) | −0.0023 (13) | 0.0018 (12) |
C18 | 0.011 (2) | 0.0104 (16) | 0.0135 (15) | −0.0002 (13) | 0.0005 (13) | −0.0014 (12) |
C22 | 0.010 (2) | 0.0086 (15) | 0.0114 (15) | 0.0008 (13) | 0.0015 (12) | −0.0025 (12) |
C23 | 0.014 (2) | 0.0128 (16) | 0.0123 (16) | 0.0013 (13) | −0.0007 (13) | −0.0026 (12) |
C24 | 0.010 (2) | 0.0244 (18) | 0.0128 (15) | −0.0009 (15) | 0.0055 (13) | −0.0027 (14) |
C25 | 0.015 (2) | 0.0134 (16) | 0.0163 (16) | −0.0044 (14) | 0.0041 (14) | 0.0026 (13) |
C26 | 0.0128 (19) | 0.0079 (15) | 0.0093 (14) | 0.0006 (13) | 0.0013 (13) | 0.0021 (12) |
C27 | 0.015 (2) | 0.0106 (16) | 0.0078 (15) | 0.0011 (13) | 0.0004 (12) | 0.0014 (12) |
C28 | 0.015 (2) | 0.0090 (16) | 0.0141 (15) | −0.0010 (13) | 0.0028 (14) | 0.0011 (12) |
Fe1—O1 | 1.948 (3) | O25—H251 | 0.77 (5) |
Fe1—O2 | 1.964 (3) | O25—H252 | 0.71 (5) |
Fe1—O15 | 2.007 (2) | O221—C27 | 1.283 (4) |
Fe1—O11 | 2.043 (2) | N11—C12 | 1.330 (4) |
Fe1—N11 | 2.070 (3) | N11—C16 | 1.336 (4) |
Fe1—O13 | 2.087 (2) | N21—C22 | 1.328 (4) |
Fe2—O1 | 1.956 (3) | N21—C26 | 1.335 (4) |
Fe2—O2 | 1.967 (3) | C12—C13 | 1.375 (5) |
Fe2—O25 | 1.997 (3) | C12—C17 | 1.515 (4) |
Fe2—O221 | 2.047 (2) | C13—C14 | 1.398 (5) |
Fe2—N21 | 2.063 (3) | C13—H13 | 0.9300 |
Fe2—O23 | 2.095 (2) | C14—C15 | 1.400 (5) |
O1—H1 | 0.70 (5) | C14—H14 | 0.9300 |
O2—H2 | 0.72 (5) | C15—C16 | 1.374 (5) |
O11—C17 | 1.285 (4) | C15—H15 | 0.9300 |
O12—C17 | 1.227 (4) | C16—C18 | 1.517 (4) |
O13—C18 | 1.280 (4) | C22—C23 | 1.385 (5) |
O14—C18 | 1.229 (4) | C22—C27 | 1.513 (4) |
O15—H151 | 0.82 (5) | C23—C24 | 1.390 (5) |
O15—H152 | 0.80 (5) | C23—H23 | 0.9300 |
O1W—H1W1 | 0.87 (4) | C24—C25 | 1.397 (5) |
O1W—H1W2 | 0.87 (5) | C24—H24 | 0.9300 |
O22—C27 | 1.232 (4) | C25—C26 | 1.382 (5) |
O23—C28 | 1.284 (4) | C25—H25 | 0.9300 |
O24—C28 | 1.229 (4) | C26—C28 | 1.514 (4) |
O1—Fe1—O2 | 77.23 (13) | C12—N11—Fe1 | 119.2 (2) |
O1—Fe1—O15 | 88.89 (11) | C16—N11—Fe1 | 119.5 (2) |
O2—Fe1—O15 | 162.77 (11) | C22—N21—C26 | 121.2 (3) |
O1—Fe1—O11 | 94.99 (9) | C22—N21—Fe2 | 118.9 (2) |
O2—Fe1—O11 | 99.04 (9) | C26—N21—Fe2 | 119.8 (2) |
O15—Fe1—O11 | 92.22 (10) | N11—C12—C13 | 121.7 (3) |
O1—Fe1—N11 | 170.43 (11) | N11—C12—C17 | 111.0 (3) |
O2—Fe1—N11 | 103.34 (12) | C13—C12—C17 | 127.3 (3) |
O15—Fe1—N11 | 92.06 (11) | C12—C13—C14 | 118.0 (3) |
O11—Fe1—N11 | 75.46 (10) | C12—C13—H13 | 121.00 |
O1—Fe1—O13 | 114.22 (9) | C14—C13—H13 | 121.00 |
O2—Fe1—O13 | 89.93 (9) | C13—C14—C15 | 119.5 (3) |
O15—Fe1—O13 | 86.48 (9) | C13—C14—H14 | 120.30 |
O11—Fe1—O13 | 150.70 (9) | C15—C14—H14 | 120.30 |
N11—Fe1—O13 | 75.34 (10) | C16—C15—C14 | 118.6 (3) |
O1—Fe2—O2 | 76.95 (14) | C16—C15—H15 | 120.70 |
O1—Fe2—O25 | 165.85 (12) | C14—C15—H15 | 120.70 |
O2—Fe2—O25 | 91.08 (12) | N11—C16—C15 | 120.9 (3) |
O1—Fe2—O221 | 98.57 (9) | N11—C16—C18 | 111.3 (3) |
O2—Fe2—O221 | 97.93 (9) | C15—C16—C18 | 127.8 (3) |
O25—Fe2—O221 | 90.46 (10) | O12—C17—O11 | 127.0 (3) |
O1—Fe2—N21 | 100.77 (12) | O12—C17—C12 | 118.9 (3) |
O2—Fe2—N21 | 173.12 (11) | O11—C17—C12 | 114.1 (3) |
O25—Fe2—N21 | 91.96 (11) | O14—C18—O13 | 126.8 (3) |
O221—Fe2—N21 | 75.88 (10) | O14—C18—C16 | 118.4 (3) |
O1—Fe2—O23 | 90.39 (10) | O13—C18—C16 | 114.8 (3) |
O2—Fe2—O23 | 111.18 (9) | N21—C22—C23 | 121.8 (3) |
O25—Fe2—O23 | 86.90 (10) | N21—C22—C27 | 111.2 (3) |
O221—Fe2—O23 | 150.80 (10) | C23—C22—C27 | 126.9 (3) |
N21—Fe2—O23 | 75.16 (10) | C22—C23—C24 | 117.5 (3) |
Fe1—O1—Fe2 | 103.38 (14) | C22—C23—H23 | 121.20 |
Fe1—O1—H1 | 132 (4) | C24—C23—H23 | 121.20 |
Fe2—O1—H1 | 118 (4) | C23—C24—C25 | 120.2 (3) |
Fe1—O2—Fe2 | 102.37 (13) | C23—C24—H24 | 119.90 |
Fe1—O2—H2 | 116 (4) | C25—C24—H24 | 119.90 |
Fe2—O2—H2 | 129 (4) | C26—C25—C24 | 118.3 (3) |
C17—O11—Fe1 | 120.21 (19) | C26—C25—H25 | 120.90 |
C18—O13—Fe1 | 119.0 (2) | C24—C25—H25 | 120.90 |
Fe1—O15—H151 | 117 (3) | N21—C26—C25 | 120.9 (3) |
Fe1—O15—H152 | 117 (3) | N21—C26—C28 | 111.4 (3) |
H151—O15—H152 | 123 (5) | C25—C26—C28 | 127.7 (3) |
H1W1—O1W—H1W2 | 97 (5) | O22—C27—O221 | 127.4 (3) |
C28—O23—Fe2 | 118.9 (2) | O22—C27—C22 | 118.1 (3) |
Fe2—O25—H251 | 122 (3) | O221—C27—C22 | 114.5 (3) |
Fe2—O25—H252 | 118 (5) | O24—C28—O23 | 126.9 (3) |
H251—O25—H252 | 120 (6) | O24—C28—C26 | 118.6 (3) |
C27—O221—Fe2 | 119.46 (19) | O23—C28—C26 | 114.5 (3) |
C12—N11—C16 | 121.3 (3) | ||
O2—Fe1—O1—Fe2 | −2.02 (11) | O2—Fe2—N21—C26 | 157.8 (8) |
O15—Fe1—O1—Fe2 | 167.69 (12) | O25—Fe2—N21—C26 | −86.0 (3) |
O11—Fe1—O1—Fe2 | −100.17 (11) | O221—Fe2—N21—C26 | −176.0 (3) |
N11—Fe1—O1—Fe2 | −96.5 (6) | O23—Fe2—N21—C26 | 0.3 (2) |
O13—Fe1—O1—Fe2 | 82.06 (12) | C16—N11—C12—C13 | −2.2 (5) |
O2—Fe2—O1—Fe1 | 2.02 (11) | Fe1—N11—C12—C13 | −179.6 (2) |
O25—Fe2—O1—Fe1 | −30.9 (5) | C16—N11—C12—C17 | 177.4 (3) |
O221—Fe2—O1—Fe1 | 98.23 (11) | Fe1—N11—C12—C17 | 0.1 (3) |
N21—Fe2—O1—Fe1 | 175.38 (10) | N11—C12—C13—C14 | 0.9 (5) |
O23—Fe2—O1—Fe1 | −109.66 (10) | C17—C12—C13—C14 | −178.7 (3) |
O1—Fe1—O2—Fe2 | 2.00 (11) | C12—C13—C14—C15 | 0.6 (5) |
O15—Fe1—O2—Fe2 | −35.1 (4) | C13—C14—C15—C16 | −1.0 (5) |
O11—Fe1—O2—Fe2 | 95.11 (10) | C12—N11—C16—C15 | 1.9 (5) |
N11—Fe1—O2—Fe2 | 172.19 (10) | Fe1—N11—C16—C15 | 179.2 (2) |
O13—Fe1—O2—Fe2 | −112.90 (10) | C12—N11—C16—C18 | −177.1 (3) |
O1—Fe2—O2—Fe1 | −1.99 (11) | Fe1—N11—C16—C18 | 0.3 (3) |
O25—Fe2—O2—Fe1 | 170.38 (11) | C14—C15—C16—N11 | −0.2 (5) |
O221—Fe2—O2—Fe1 | −99.01 (10) | C14—C15—C16—C18 | 178.5 (3) |
N21—Fe2—O2—Fe1 | −73.4 (9) | Fe1—O11—C17—O12 | −177.6 (2) |
O23—Fe2—O2—Fe1 | 83.29 (12) | Fe1—O11—C17—C12 | 1.9 (3) |
O1—Fe1—O11—C17 | 177.9 (2) | N11—C12—C17—O12 | 178.3 (3) |
O2—Fe1—O11—C17 | 100.1 (2) | C13—C12—C17—O12 | −2.1 (5) |
O15—Fe1—O11—C17 | −93.0 (2) | N11—C12—C17—O11 | −1.2 (4) |
N11—Fe1—O11—C17 | −1.5 (2) | C13—C12—C17—O11 | 178.4 (3) |
O13—Fe1—O11—C17 | −6.3 (3) | Fe1—O13—C18—O14 | −176.5 (3) |
O1—Fe1—O13—C18 | 178.2 (2) | Fe1—O13—C18—C16 | 2.9 (3) |
O2—Fe1—O13—C18 | −105.9 (2) | N11—C16—C18—O14 | 177.4 (3) |
O15—Fe1—O13—C18 | 91.0 (2) | C15—C16—C18—O14 | −1.4 (5) |
O11—Fe1—O13—C18 | 2.7 (3) | N11—C16—C18—O13 | −2.0 (4) |
N11—Fe1—O13—C18 | −2.1 (2) | C15—C16—C18—O13 | 179.1 (3) |
O1—Fe2—O23—C28 | −103.7 (2) | C26—N21—C22—C23 | −2.6 (5) |
O2—Fe2—O23—C28 | −179.9 (2) | Fe2—N21—C22—C23 | 179.2 (2) |
O25—Fe2—O23—C28 | 90.2 (2) | C26—N21—C22—C27 | 175.4 (3) |
O221—Fe2—O23—C28 | 4.8 (3) | Fe2—N21—C22—C27 | −2.7 (4) |
N21—Fe2—O23—C28 | −2.7 (2) | N21—C22—C23—C24 | 0.8 (5) |
O1—Fe2—O221—C27 | 97.8 (2) | C27—C22—C23—C24 | −176.9 (3) |
O2—Fe2—O221—C27 | 175.7 (2) | C22—C23—C24—C25 | 1.2 (5) |
O25—Fe2—O221—C27 | −93.1 (2) | C23—C24—C25—C26 | −1.5 (5) |
N21—Fe2—O221—C27 | −1.2 (2) | C22—N21—C26—C25 | 2.3 (5) |
O23—Fe2—O221—C27 | −8.6 (3) | Fe2—N21—C26—C25 | −179.5 (2) |
O1—Fe1—N11—C12 | −3.1 (8) | C22—N21—C26—C28 | −176.5 (3) |
O2—Fe1—N11—C12 | −95.4 (2) | Fe2—N21—C26—C28 | 1.7 (4) |
O15—Fe1—N11—C12 | 92.4 (2) | C24—C25—C26—N21 | −0.2 (5) |
O11—Fe1—N11—C12 | 0.7 (2) | C24—C25—C26—C28 | 178.3 (3) |
O13—Fe1—N11—C12 | 178.2 (3) | Fe2—O221—C27—O22 | 179.1 (2) |
O1—Fe1—N11—C16 | 179.5 (6) | Fe2—O221—C27—C22 | 0.1 (3) |
O2—Fe1—N11—C16 | 87.2 (2) | N21—C22—C27—O22 | −177.4 (3) |
O15—Fe1—N11—C16 | −85.0 (2) | C23—C22—C27—O22 | 0.5 (5) |
O11—Fe1—N11—C16 | −176.8 (3) | N21—C22—C27—O221 | 1.7 (4) |
O13—Fe1—N11—C16 | 0.8 (2) | C23—C22—C27—O221 | 179.6 (3) |
O1—Fe2—N21—C22 | −94.0 (2) | Fe2—O23—C28—O24 | −174.8 (3) |
O2—Fe2—N21—C22 | −24.0 (10) | Fe2—O23—C28—C26 | 4.3 (3) |
O25—Fe2—N21—C22 | 92.2 (3) | N21—C26—C28—O24 | 175.3 (3) |
O221—Fe2—N21—C22 | 2.2 (2) | C25—C26—C28—O24 | −3.4 (5) |
O23—Fe2—N21—C22 | 178.5 (3) | N21—C26—C28—O23 | −3.8 (4) |
O1—Fe2—N21—C26 | 87.8 (3) | C25—C26—C28—O23 | 177.5 (3) |
D—H···A | D—H | H···A | D···A | D—H···A |
O1—H1···O1W | 0.70 (5) | 2.34 (5) | 2.966 (3) | 151 (5) |
O2—H2···O1Wi | 0.72 (5) | 2.28 (5) | 2.936 (3) | 151 (5) |
O15—H151···O12ii | 0.83 (5) | 1.78 (5) | 2.611 (5) | 173 (5) |
O15—H152···O14iii | 0.80 (4) | 1.79 (4) | 2.577 (4) | 171 (5) |
O25—H251···O24iv | 0.78 (4) | 1.80 (4) | 2.577 (4) | 176 (5) |
O25—H252···O22v | 0.71 (5) | 1.87 (5) | 2.576 (5) | 173 (6) |
O1W—H1W1···O23iii | 0.87 (4) | 2.10 (4) | 2.962 (4) | 176 (4) |
O1W—H1W2···O13iii | 0.87 (5) | 2.22 (4) | 3.072 (4) | 169 (4) |
Symmetry codes: (i) x, y, z+1; (ii) −x+1, −y, −z+1; (iii) x, −y+1/2, z−1/2; (iv) x, −y+1/2, z+1/2; (v) −x+2, −y, −z+2. |
Experimental details
Crystal data | |
Chemical formula | [Fe2(OH)2(C7H3NO4)2(H2O2)2]·H2O |
Mr | 529.97 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 150 |
a, b, c (Å) | 11.4786 (11), 21.7080 (16), 7.3291 (6) |
β (°) | 90.099 (7) |
V (Å3) | 1826.2 (3) |
Z | 4 |
Radiation type | Cu - Kα |
µ (mm−1) | 13.53 |
Crystal size (mm) | 0.20 × 0.20 × 0.14 |
Data collection | |
Diffractometer | Rigaku Rapid II |
Absorption correction | Multi-scan (SCALEPACK; Otwinowski & Minor, 1997) |
Tmin, Tmax | 0.120, 0.150 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 14275, 2831, 2695 |
Rint | 0.048 |
(sin θ/λ)max (Å−1) | 0.579 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.057, 0.153, 1.07 |
No. of reflections | 2831 |
No. of parameters | 311 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.97, −0.76 |
Computer programs: CrystalClear (Rigaku, 2001), DENZO/SCALEPACK (Otwinowski & Minor, 1997),
(Oszlányi & Sütő, 2004) implemented in PLATON (Spek, 2009), SHELX97 (Sheldrick, 2008), ORTEPII (Johnson, 1976) and PLATON (Spek, 2009), SHELXL97 (Sheldrick, 2008).D—H···A | D—H | H···A | D···A | D—H···A |
O1—H1···O1W | 0.70 (5) | 2.34 (5) | 2.966 (3) | 151 (5) |
O2—H2···O1Wi | 0.72 (5) | 2.28 (5) | 2.936 (3) | 151 (5) |
O15—H151···O12ii | 0.83 (5) | 1.78 (5) | 2.611 (5) | 173 (5) |
O15—H152···O14iii | 0.80 (4) | 1.79 (4) | 2.577 (4) | 171 (5) |
O25—H251···O24iv | 0.78 (4) | 1.80 (4) | 2.577 (4) | 176 (5) |
O25—H252···O22v | 0.71 (5) | 1.87 (5) | 2.576 (5) | 173 (6) |
O1W—H1W1···O23iii | 0.87 (4) | 2.10 (4) | 2.962 (4) | 176 (4) |
O1W—H1W2···O13iii | 0.87 (5) | 2.22 (4) | 3.072 (4) | 169 (4) |
Symmetry codes: (i) x, y, z+1; (ii) −x+1, −y, −z+1; (iii) x, −y+1/2, z−1/2; (iv) x, −y+1/2, z+1/2; (v) −x+2, −y, −z+2. |
Acknowledgements
Financial support as well as provision of X-ray facilities from the Ferdowsi University of Mashhad and Purdue University, W. Lafayette, are gratefully acknowledged by the authors.
References
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This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.
In continuation of our structural study of coordination compounds bearing different dicaroxylic acid and amine base fragments via proton transfer methodology (Aghabozorg et al., 2008 and references therein; Eshtiagh-Hosseini et al. 2010), we present here the title compound, (I). The crystal structure of anhydrous form of I already has been reported by Thich et al. (1976); [(pydc)H2OFeOH]2 (II). The considerable feature of the title compound, is that the basic properties of (pydc)2- did not allow 5-bromo-6-methyl-2-(4-methylpiperazine-1-yl)pyrimidine-4-amine (bmpa) participitate in the crystalline network. The other interesting point is that two FeIII ions have different chemical environment making them non equivalent but with similar coordination geometry, that is, each FeIII ion is hexa-coordinated by one tridentate (pydc)2-, two µ-hydroxo, and one coordinated water molecule (Fig. 1).
The above-mentioned complexes are very similar in terms of molecular structure but with different crystal structures. Both structures consist of [(pydc)H2OFe(OH)]2 dimeric units but the only difference between them is the peresence of a crystalline water molecule in the I.
In I (Fig. 1), all bond lengths and angles are normal and comparable with those observed in anhydrous form of the title dinuclear complex (Thich et al., 1976). In the crystal structure, intermolecular O—H···O hydrogen bonds (Table 1) form an extensive three-dimensional hydrogen-bonding network, which consolidate the crystal packing. Indeed, firstly, covalent bonds cause to constructe dinuclear skeleton, and then the classical hydrogen bond interactions caused by O—H···O, lead to the self-aggregation process.