metal-organic compounds
catena-Poly[(triaquazinc)-μ-furan-2,5-dicarboxylato-κ3O2:O2,O2′]
aSchool of Chemical Engineering, Changchun University of Technology, Changchun 130012, People's Republic of China
*Correspondence e-mail: fly012345@sohu.com
In the 6H2O5)(H2O)3]n, an infinite chain is formed along [001] by linking of the Zn(H2O)3 entities with one carboxylate group of the furan-2,5-dicarboxylate ligand. Adjacent chains are linked by Owater—H⋯O hydrogen-bonding interactions. The Zn(H2O)3O3 polyhedron displays a distorted octahedral geometry with one weak Zn—Ocarboxylate coordination [2.433 (8) A°] and two water molecules located in axial positions. Except for one of the axial water molecules and two adjacent H atoms, the other atoms (including H atoms) possess m.
of the title compound, [Zn(CRelated literature
For background to materials with metal-organic framework structures, see: Chui et al. (1999); Corma et al. (2010); Ferey (2008); Li et al. (1999); Ma et al. (2009); Murray et al. (2009); Tranchemontagne et al. (2009).
Experimental
Crystal data
|
Refinement
|
Data collection: PROCESS-AUTO (Rigaku, 1998); cell PROCESS-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: DIAMOND (Brandenburg, 2000); software used to prepare material for publication: SHELXL97.
Supporting information
10.1107/S1600536812012111/qm2058sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536812012111/qm2058Isup2.hkl
(I) was synthesized under solvothermal condition. In a typical preparation, furan-2,5-dicarboxyl acid (0.312 g, 2.0 mmol) and Zn(NO3)2.6H2O (0.592 g, 2.0 mmol) were dissolved in a mixture of EtOH (2.9 ml, 50 mmol) and DMF (3.9 ml, 50m mol) with stirring. Then, the clear solution with molar ratio of 1 (furan-2,5-dicarboxyl acid): 1 (Zn(NO3)2.6H2O): 25 (EtOH): 25 (DMF) was tranferred into a 23 ml autoclave and heated at 393 K for 24hrs. After naturally cooling to room temperature, colorless blocks were collected by filtration as a single phase.
Water H atoms were located in a difference Fourier map and were refined with O—H = 0.82 (2) Å, H···H = 1.37 (2) Å and Uiso(H) = 1.2Ueq(O). The carbon H-atoms were placed in calculated positions (C—H = 0.93 Å) and were included in the
in the riding-model approximation, with Uiso(H) = 1.2Ueq(C).During past decades, many efforts have been made to construct MOF materials due to their potential applications including gas absorption and reaction catalysis (Ma, et al., 2009; Murray, et al., 2009; Corma, et al., 2010). Much attention has been focused on MOFs based on a phenyl ring with carboxylate groups (Chui, et al., 1999; Li, et al., 1999; Ferey, 2008; Tranchemontagne, et al., 2009). However, 5-membered rings with carboxylate groups as described here are rarely studied. Recently, we utilized furan-2,5-dicarboxyl acid as a ligand for MOF construction. In this work, a novel chainlike compound, [Zn.(C6O5H2).3H2O]n (I), was synthesized.
The η1,η2 bonding mode.
of (I) is comprised of one Zn(II) cation, one furan-2,5-dicarboxylate anion and three H2O molecules (Fig.1). The Zn cation is coordinated by three carboxylate O atoms and three water molecules of which two are at the axial positions generating a distorted octahedron. Carboxylate oxygen O2 of (Zn—Ocarboxylate = 2.433 (8) Å) is very weakly ligated to the Zn cation. If this interaction is excluded the Zn displays triganol bipyramid geometry but the chain property is retained. Only the O2 carboxyl of the furan-2,5-dicarboxylate is involved in the formation of the infinite chain. The carboxyl has an µ2:The infinite chain of Zn cations linked by one carboxylate of furan-2,5-dicarboxylate is shown in (Fig.2). The adjacent chains are held together by H-bonding interactions of Owater—H···O (Fig.3).
For background to materials with metal-organic framework structures, see: Chui et al. (1999); Corma et al. (2010); Ferey (2008); Li et al. (1999); Ma et al. (2009); Murray et al. (2009); Tranchemontagne et al. (2009).
Data collection: PROCESS-AUTO (Rigaku, 1998); cell
PROCESS-AUTO (Rigaku, 1998); 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: DIAMOND (Brandenburg, 2000); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008).[Zn(C6H2O5)(H2O)3] | F(000) = 552 |
Mr = 273.51 | Dx = 2.006 Mg m−3 |
Orthorhombic, Pnma | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ac 2n | Cell parameters from 1000 reflections |
a = 7.3677 (15) Å | θ = 2.8–30.2° |
b = 8.1353 (16) Å | µ = 2.74 mm−1 |
c = 15.107 (3) Å | T = 293 K |
V = 905.5 (3) Å3 | Block, colorless |
Z = 4 | 0.42 × 0.36 × 0.23 mm |
Rigaku R-AXIS RAPID diffractometer | 1121 independent reflections |
Radiation source: fine-focus sealed tube | 1029 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.027 |
Detector resolution: 10.00 pixels mm-1 | θmax = 30.2°, θmin = 2.8° |
ω scans | h = −10→10 |
Absorption correction: multi-scan (ABSCOR; Higashi, 1995) | k = −9→9 |
Tmin = 0.33, Tmax = 0.54 | l = −19→16 |
8443 measured reflections |
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)] = 0.083 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.224 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.11 | w = 1/[σ2(Fo2) + (0.119P)2 + 7.3441P] where P = (Fo2 + 2Fc2)/3 |
1121 reflections | (Δ/σ)max < 0.001 |
98 parameters | Δρmax = 2.22 e Å−3 |
87 restraints | Δρmin = −1.90 e Å−3 |
[Zn(C6H2O5)(H2O)3] | V = 905.5 (3) Å3 |
Mr = 273.51 | Z = 4 |
Orthorhombic, Pnma | Mo Kα radiation |
a = 7.3677 (15) Å | µ = 2.74 mm−1 |
b = 8.1353 (16) Å | T = 293 K |
c = 15.107 (3) Å | 0.42 × 0.36 × 0.23 mm |
Rigaku R-AXIS RAPID diffractometer | 1121 independent reflections |
Absorption correction: multi-scan (ABSCOR; Higashi, 1995) | 1029 reflections with I > 2σ(I) |
Tmin = 0.33, Tmax = 0.54 | Rint = 0.027 |
8443 measured reflections |
R[F2 > 2σ(F2)] = 0.083 | 87 restraints |
wR(F2) = 0.224 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.11 | Δρmax = 2.22 e Å−3 |
1121 reflections | Δρmin = −1.90 e Å−3 |
98 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 | ||
Zn1 | 0.33412 (15) | 0.7500 | 0.19775 (8) | 0.0399 (6) | |
O1 | 0.3238 (10) | 0.7500 | 0.3352 (6) | 0.042 (2) | |
O2 | 0.5848 (11) | 0.7500 | 0.3026 (5) | 0.043 (2) | |
O4 | 0.9702 (12) | 0.7500 | 0.5701 (7) | 0.077 (3) | |
O5 | 0.8412 (10) | 0.7500 | 0.6964 (5) | 0.053 (3) | |
C1 | 0.4723 (12) | 0.7500 | 0.3584 (7) | 0.038 (3) | |
O3 | 0.6726 (9) | 0.7500 | 0.4770 (5) | 0.0339 (17) | |
C2 | 0.5127 (13) | 0.7500 | 0.4532 (7) | 0.033 (2) | |
C3 | 0.4138 (16) | 0.7500 | 0.5251 (8) | 0.044 (3) | |
H3 | 0.2875 | 0.7500 | 0.5257 | 0.053* | |
C4 | 0.5222 (16) | 0.7500 | 0.6006 (8) | 0.051 (3) | |
H4 | 0.4908 | 0.7500 | 0.6603 | 0.062* | |
C5 | 0.6686 (10) | 0.7500 | 0.5654 (6) | 0.035 (2) | |
C6 | 0.8312 (12) | 0.7500 | 0.6104 (7) | 0.037 (3) | |
O1W | 0.3316 (10) | 1.0258 (13) | 0.1901 (6) | 0.066 (2) | |
H1A | 0.313 (18) | 1.075 (12) | 0.237 (5) | 0.079* | |
H1B | 0.405 (14) | 1.075 (12) | 0.158 (6) | 0.079* | |
O2W | 0.5094 (11) | 0.7500 | 0.1041 (6) | 0.052 (2) | |
H2A | 0.513 (19) | 0.7500 | 0.0495 (18) | 0.063* | |
H2B | 0.612 (9) | 0.7500 | 0.126 (8) | 0.063* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Zn1 | 0.0127 (6) | 0.0881 (13) | 0.0189 (7) | 0.000 | 0.0014 (4) | 0.000 |
O1 | 0.021 (3) | 0.076 (5) | 0.030 (4) | 0.000 | −0.004 (3) | 0.000 |
O2 | 0.020 (3) | 0.080 (5) | 0.030 (3) | 0.000 | 0.000 (3) | 0.000 |
O4 | 0.044 (5) | 0.141 (8) | 0.046 (5) | 0.000 | 0.002 (4) | 0.000 |
O5 | 0.022 (4) | 0.119 (10) | 0.017 (4) | 0.000 | −0.005 (3) | 0.000 |
C1 | 0.015 (4) | 0.075 (7) | 0.024 (4) | 0.000 | −0.002 (3) | 0.000 |
O3 | 0.018 (3) | 0.060 (4) | 0.023 (3) | 0.000 | −0.003 (2) | 0.000 |
C2 | 0.014 (3) | 0.063 (7) | 0.023 (4) | 0.000 | −0.001 (3) | 0.000 |
C3 | 0.031 (4) | 0.069 (6) | 0.034 (4) | 0.000 | 0.000 (4) | 0.000 |
C4 | 0.027 (5) | 0.101 (9) | 0.027 (5) | 0.000 | 0.000 (4) | 0.000 |
C5 | 0.024 (4) | 0.058 (6) | 0.021 (4) | 0.000 | −0.001 (3) | 0.000 |
C6 | 0.023 (4) | 0.065 (7) | 0.022 (5) | 0.000 | −0.001 (3) | 0.000 |
O1W | 0.042 (4) | 0.083 (5) | 0.072 (5) | 0.001 (3) | 0.032 (3) | 0.009 (4) |
O2W | 0.020 (3) | 0.109 (6) | 0.028 (4) | 0.000 | −0.003 (3) | 0.000 |
Zn1—O2i | 1.837 (8) | O3—C2 | 1.232 (11) |
Zn1—O2W | 1.916 (8) | O3—C5 | 1.335 (12) |
Zn1—O1 | 2.079 (9) | C2—C3 | 1.308 (16) |
Zn1—O1Wii | 2.247 (10) | C3—C4 | 1.392 (17) |
Zn1—O1W | 2.247 (10) | C3—H3 | 0.9300 |
Zn1—O2 | 2.433 (8) | C4—C5 | 1.203 (15) |
O1—C1 | 1.149 (12) | C4—H4 | 0.9300 |
O2—C1 | 1.182 (13) | C5—C6 | 1.377 (9) |
O2—Zn1iii | 1.837 (8) | O1W—H1A | 0.82 (3) |
O4—C6 | 1.191 (14) | O1W—H1B | 0.83 (3) |
O5—C6 | 1.301 (12) | O2W—H2A | 0.82 (3) |
C1—C2 | 1.464 (14) | O2W—H2B | 0.82 (3) |
O2i—Zn1—O2W | 132.2 (4) | C2—O3—C5 | 105.7 (8) |
O2i—Zn1—O1 | 88.1 (3) | O3—C2—C3 | 106.9 (10) |
O2W—Zn1—O1 | 139.7 (3) | O3—C2—C1 | 118.7 (9) |
O2i—Zn1—O1Wii | 89.52 (19) | C3—C2—C1 | 134.4 (10) |
O2W—Zn1—O1Wii | 88.14 (17) | C2—C3—C4 | 111.1 (11) |
O1—Zn1—O1Wii | 92.9 (2) | C2—C3—H3 | 124.4 |
O2i—Zn1—O1W | 89.52 (19) | C4—C3—H3 | 124.4 |
O2W—Zn1—O1W | 88.14 (17) | C5—C4—C3 | 98.7 (10) |
O1—Zn1—O1W | 92.9 (2) | C5—C4—H4 | 130.6 |
O1Wii—Zn1—O1W | 174.0 (5) | C3—C4—H4 | 130.6 |
O2i—Zn1—O2 | 139.54 (17) | C4—C5—O3 | 117.5 (9) |
O2W—Zn1—O2 | 88.2 (3) | C4—C5—C6 | 124.2 (10) |
O1—Zn1—O2 | 51.5 (3) | O3—C5—C6 | 118.3 (8) |
O1Wii—Zn1—O2 | 92.3 (2) | O4—C6—O5 | 117.4 (9) |
O1W—Zn1—O2 | 92.3 (2) | O4—C6—C5 | 119.7 (10) |
C1—O1—Zn1 | 105.6 (7) | O5—C6—C5 | 122.8 (9) |
C1—O2—Zn1iii | 134.7 (8) | Zn1—O1W—H1A | 116 (8) |
C1—O2—Zn1 | 86.1 (6) | Zn1—O1W—H1B | 120 (8) |
Zn1iii—O2—Zn1 | 139.2 (4) | H1A—O1W—H1B | 112 (5) |
O1—C1—O2 | 116.8 (11) | Zn1—O2W—H2A | 139 (10) |
O1—C1—C2 | 119.4 (10) | Zn1—O2W—H2B | 109 (10) |
O2—C1—C2 | 123.8 (9) | H2A—O2W—H2B | 112 (13) |
O2i—Zn1—O1—C1 | 180.000 (1) | Zn1iii—O2—C1—C2 | 0.000 (3) |
O2W—Zn1—O1—C1 | 0.000 (2) | Zn1—O2—C1—C2 | 180.000 (2) |
O1Wii—Zn1—O1—C1 | 90.58 (19) | C5—O3—C2—C3 | 0.000 (3) |
O1W—Zn1—O1—C1 | −90.58 (19) | C5—O3—C2—C1 | 180.000 (2) |
O2—Zn1—O1—C1 | 0.000 (1) | O1—C1—C2—O3 | 180.000 (2) |
O2i—Zn1—O2—C1 | 0.000 (1) | O2—C1—C2—O3 | 0.000 (3) |
O2W—Zn1—O2—C1 | 180.000 (1) | O1—C1—C2—C3 | 0.000 (4) |
O1—Zn1—O2—C1 | 0.000 (1) | O2—C1—C2—C3 | 180.000 (3) |
O1Wii—Zn1—O2—C1 | −91.93 (17) | O3—C2—C3—C4 | 0.000 (3) |
O1W—Zn1—O2—C1 | 91.93 (17) | C1—C2—C3—C4 | 180.000 (3) |
O2i—Zn1—O2—Zn1iii | 180.0 | C2—C3—C4—C5 | 0.000 (3) |
O2W—Zn1—O2—Zn1iii | 0.0 | C3—C4—C5—O3 | 0.000 (3) |
O1—Zn1—O2—Zn1iii | 180.0 | C3—C4—C5—C6 | 180.000 (3) |
O1Wii—Zn1—O2—Zn1iii | 88.07 (17) | C2—O3—C5—C4 | 0.000 (3) |
O1W—Zn1—O2—Zn1iii | −88.07 (17) | C2—O3—C5—C6 | 180.000 (2) |
Zn1—O1—C1—O2 | 0.000 (2) | C4—C5—C6—O4 | 180.000 (3) |
Zn1—O1—C1—C2 | 180.000 (2) | O3—C5—C6—O4 | 0.000 (3) |
Zn1iii—O2—C1—O1 | 180.000 (1) | C4—C5—C6—O5 | 0.000 (4) |
Zn1—O2—C1—O1 | 0.000 (1) | O3—C5—C6—O5 | 180.000 (2) |
Symmetry codes: (i) x−1/2, y, −z+1/2; (ii) x, −y+3/2, z; (iii) x+1/2, y, −z+1/2. |
D—H···A | D—H | H···A | D···A | D—H···A |
O1W—H1A···O5iv | 0.82 (3) | 2.08 (8) | 2.809 (10) | 147 (14) |
O1W—H1B···O4v | 0.83 (3) | 2.16 (5) | 2.957 (11) | 163 (12) |
O2W—H2A···O4i | 0.82 (3) | 1.83 (4) | 2.648 (14) | 168 (14) |
O2W—H2B···O1iii | 0.82 (3) | 1.67 (3) | 2.491 (11) | 177 (15) |
Symmetry codes: (i) x−1/2, y, −z+1/2; (iii) x+1/2, y, −z+1/2; (iv) −x+1, −y+2, −z+1; (v) −x+3/2, −y+2, z−1/2. |
Experimental details
Crystal data | |
Chemical formula | [Zn(C6H2O5)(H2O)3] |
Mr | 273.51 |
Crystal system, space group | Orthorhombic, Pnma |
Temperature (K) | 293 |
a, b, c (Å) | 7.3677 (15), 8.1353 (16), 15.107 (3) |
V (Å3) | 905.5 (3) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 2.74 |
Crystal size (mm) | 0.42 × 0.36 × 0.23 |
Data collection | |
Diffractometer | Rigaku R-AXIS RAPID |
Absorption correction | Multi-scan (ABSCOR; Higashi, 1995) |
Tmin, Tmax | 0.33, 0.54 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 8443, 1121, 1029 |
Rint | 0.027 |
(sin θ/λ)max (Å−1) | 0.707 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.083, 0.224, 1.11 |
No. of reflections | 1121 |
No. of parameters | 98 |
No. of restraints | 87 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 2.22, −1.90 |
Computer programs: PROCESS-AUTO (Rigaku, 1998), CrystalStructure (Rigaku/MSC, 2002), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), DIAMOND (Brandenburg, 2000).
D—H···A | D—H | H···A | D···A | D—H···A |
O1W—H1A···O5i | 0.82 (3) | 2.08 (8) | 2.809 (10) | 147 (14) |
O1W—H1B···O4ii | 0.83 (3) | 2.16 (5) | 2.957 (11) | 163 (12) |
O2W—H2A···O4iii | 0.82 (3) | 1.83 (4) | 2.648 (14) | 168 (14) |
O2W—H2B···O1iv | 0.82 (3) | 1.67 (3) | 2.491 (11) | 177 (15) |
Symmetry codes: (i) −x+1, −y+2, −z+1; (ii) −x+3/2, −y+2, z−1/2; (iii) x−1/2, y, −z+1/2; (iv) x+1/2, y, −z+1/2. |
Acknowledgements
This project was sponsored by the Scientific Research Foundation for the Returned Overseas Team, Chinese Education Ministry.
References
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During past decades, many efforts have been made to construct MOF materials due to their potential applications including gas absorption and reaction catalysis (Ma, et al., 2009; Murray, et al., 2009; Corma, et al., 2010). Much attention has been focused on MOFs based on a phenyl ring with carboxylate groups (Chui, et al., 1999; Li, et al., 1999; Ferey, 2008; Tranchemontagne, et al., 2009). However, 5-membered rings with carboxylate groups as described here are rarely studied. Recently, we utilized furan-2,5-dicarboxyl acid as a ligand for MOF construction. In this work, a novel chainlike compound, [Zn.(C6O5H2).3H2O]n (I), was synthesized.
The asymmetric unit of (I) is comprised of one Zn(II) cation, one furan-2,5-dicarboxylate anion and three H2O molecules (Fig.1). The Zn cation is coordinated by three carboxylate O atoms and three water molecules of which two are at the axial positions generating a distorted octahedron. Carboxylate oxygen O2 of (Zn—Ocarboxylate = 2.433 (8) Å) is very weakly ligated to the Zn cation. If this interaction is excluded the Zn displays triganol bipyramid geometry but the chain property is retained. Only the O2 carboxyl of the furan-2,5-dicarboxylate is involved in the formation of the infinite chain. The carboxyl has an µ2:η1,η2 bonding mode.
The infinite chain of Zn cations linked by one carboxylate of furan-2,5-dicarboxylate is shown in (Fig.2). The adjacent chains are held together by H-bonding interactions of Owater—H···O (Fig.3).