metal-organic compounds
catena-Poly[[[bis(methylamine)zinc(II)]-μ-4,4′-oxydibenzoato] N,N-dimethylacetamide solvate]
aSchool of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, People's Republic of China.
*Correspondence e-mail: xianzhuxu@yahoo.com.cn
In the title zinc(II) coordination polymer, {[Zn(C14H8O5)(CH5N)2]·C4H9NO}n, each Zn(II) cation is tetrahedrally coordinated by two carboxylato O atoms of two oba anions (H2oba is 4,4′-oxydibenzoic acid), and two N atoms from two methylamine molecules. Each oba anion bridges two Zn(II) cations through the two carboxylate groups in a monodentate fashion, forming one-dimensional polymeric chains. These chains are linked via N–H⋯O hydrogen bonds, forming a two-dimensional supramolecular network.
Related literature
For related literature, see: Kondo et al. (2004); Luo et al. (2003); Sun et al. (2005); Yaghi et al. (1998).
Experimental
Crystal data
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Refinement
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Data collection: RAPID-AUTO (Rigaku, 1998); cell RAPID-AUTO; data reduction: RAPID-AUTO; program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: SHELXTL (Bruker, 2000); software used to prepare material for publication: SHELXL97.
Supporting information
https://doi.org/10.1107/S1600536807063155/fj2083sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536807063155/fj2083Isup2.hkl
(I) was solvothermally prepared from a mixture of Zn(NO3)2.6H2O (0.044 g, 0.2 mmol), 4,4'-oxybis(benzoic acid) (0.051 g, 0.2 mmol), methylamine (0.05 ml) and dimethylacetamide (10 ml). The slurry was stirred for 30 min and heated at 120 °C for 72 h in a Teflon-lined stainless steel autoclave (25 ml) under autogenous pressure. After cooling to room temperature, the block-shaped crystals were washed with water and dried in air.
The H atoms were placed in geometrical calculated positions, with C—H distances of 0.93–0.96 Å and N—H distances of 0.90 Å. A common displacement parameter was refined for all H atoms.
Recently, great interest has been focused on the design and synthesis of coordination polymers because of their intriguing network topologies and promising applications (Yaghi et al., 1998). It is well known that the selection of appropriate organic ligands is crucial to the design and synthesis of the supramolecular architectures. In preparing target metal complexes, carboxylate and organic amine ligands have been frequently employed (Luo et al., 2003). More and more interest has focused on long flexible ligands recently, and how to avoid, or make use of, their interpenetration to construct novel coordination polymers is an interesting challenge. 4,4'-oxybis(benzoic acid) (H2oba) ligand, in which two benzene moieties are linked together by a µ2-O bridge, is the typical example of flexible ligand and may offer more possibilities in geometry configuration and coordination modes towards the metal ions. As far as we know, several coordination polymers based on 4,4'-oxybis(benzoic acid) have been obtained (Kondo et al., 2004; Sun et al., 2005). We present here the solvothermal synthesis and
of title coordination polymer, [Zn(C14H8O5)(CNH5)2.(C4NOH9)]n, (I).The
of (I) consists of one crystallogaphically independent Zn(II) cation, one oba ligand, two methylamine and one dimethylacetamide molecule. Fig.1 shows the molecular structure of (I) with the atom-labelling scheme. The Zn(II) cation has a slightly distorted tetrahedral coordination geometry and formed by two carboxy oxygen atoms (O1 and O5A) from two oba ligands and two nitrogen atoms (N1 and N2) from two methylamine molecule, with Zn—O distances of 1.949 (3)–1.952 (3) Å and Zn—N distances in the range of 1.996 (4)–2.047 (4) Å. These values are in good agreement with those found in other extended structures (Kondo et al., 2004). The O—Zn—O and N—Zn—N bond angles are 106.28 (11)° and 106.15 (19)°, respectively. The N—Zn—O angles are in the range from 98.65 (12) to 115.75 (14)°. In (I), two carboxylate groups of each oba exhibit bis-monodentate coordination modes, namely oba anion acts as µ2-bridging ligand to connect with two Zn(II) centers and each Zn(II) center connects with two oba anions to form the chain arrangement with Zn···Zn distance of 14.512 (4) Å (Fig. 2). It is found that there are hydrogen bonding interactions between adjacent chains. The N—H···O hydrogen bonds involve the uncoordinated carboxylic oxygen atoms of oba and N—H groups of methylamine molecules from adjacent chains (Table 2). In addition, dimethylacetamide molecules located in the with N—H···O hydrogen bonding interactions involving the oxygen atoms of dimethylacetamide molecules and N—H groups of methylamine molecules (Table 2). Finally, the chains are linked together by hydrogen bonds to form two-dimensional supramolecular network (Fig. 2).For related literature, see: Kondo et al. (2004); Luo et al. (2003); Sun et al. (2005); Yaghi et al. (1998).
Data collection: RAPID-AUTO (Rigaku, 1998); cell
RAPID-AUTO (Rigaku, 1998); data reduction: RAPID-AUTO (Rigaku, 1998); program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: SHELXTL (Bruker, 2000); software used to prepare material for publication: SHELXL97 (Sheldrick, 1997).[Zn(C14H8O5)(CH5N)2]·C4H9NO | F(000) = 1968 |
Mr = 470.82 | Dx = 1.417 Mg m−3 |
Monoclinic, C2/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -C 2yc | Cell parameters from 11100 reflections |
a = 27.617 (6) Å | θ = 3.0–27.5° |
b = 8.9276 (18) Å | µ = 1.15 mm−1 |
c = 21.212 (4) Å | T = 293 K |
β = 122.46 (3)° | Block, colorless |
V = 4413 (2) Å3 | 0.35 × 0.34 × 0.15 mm |
Z = 8 |
Rigaku RAXIS-RAPID diffractometer | 4942 independent reflections |
Radiation source: fine-focus sealed tube | 2843 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.056 |
Detector resolution: 10.0 pixels mm-1 | θmax = 27.5°, θmin = 3.0° |
ω scan | h = −34→35 |
Absorption correction: multi-scan (Higashi, 1995) | k = −11→11 |
Tmin = 0.690, Tmax = 0.850 | l = −27→27 |
20180 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)] = 0.053 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.149 | H-atom parameters constrained |
S = 1.04 | w = 1/[σ2(Fo2) + (0.065P)2 + 3.5742P] where P = (Fo2 + 2Fc2)/3 |
4942 reflections | (Δ/σ)max = 0.016 |
276 parameters | Δρmax = 0.43 e Å−3 |
0 restraints | Δρmin = −0.47 e Å−3 |
[Zn(C14H8O5)(CH5N)2]·C4H9NO | V = 4413 (2) Å3 |
Mr = 470.82 | Z = 8 |
Monoclinic, C2/c | Mo Kα radiation |
a = 27.617 (6) Å | µ = 1.15 mm−1 |
b = 8.9276 (18) Å | T = 293 K |
c = 21.212 (4) Å | 0.35 × 0.34 × 0.15 mm |
β = 122.46 (3)° |
Rigaku RAXIS-RAPID diffractometer | 4942 independent reflections |
Absorption correction: multi-scan (Higashi, 1995) | 2843 reflections with I > 2σ(I) |
Tmin = 0.690, Tmax = 0.850 | Rint = 0.056 |
20180 measured reflections |
R[F2 > 2σ(F2)] = 0.053 | 0 restraints |
wR(F2) = 0.149 | H-atom parameters constrained |
S = 1.04 | Δρmax = 0.43 e Å−3 |
4942 reflections | Δρmin = −0.47 e Å−3 |
276 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 | 1.006041 (17) | 0.74836 (5) | 0.42522 (2) | 0.05793 (17) | |
O1 | 0.92334 (11) | 0.7166 (3) | 0.37118 (16) | 0.0679 (7) | |
O2 | 0.92687 (11) | 0.9063 (3) | 0.44038 (16) | 0.0727 (8) | |
O3 | 0.66245 (11) | 0.7259 (3) | 0.26587 (18) | 0.0794 (9) | |
O4 | 0.53662 (14) | 0.9180 (4) | 0.43119 (19) | 0.0892 (10) | |
O5 | 0.53394 (11) | 1.1281 (3) | 0.37427 (16) | 0.0699 (7) | |
O6 | 0.6660 (2) | 0.4181 (4) | 0.4624 (3) | 0.1244 (15) | |
N1 | 1.04661 (18) | 0.7142 (7) | 0.5352 (2) | 0.1189 (18) | |
H1A | 1.0413 | 0.7967 | 0.5552 | 0.143* | |
H1B | 1.0284 | 0.6387 | 0.5422 | 0.143* | |
N2 | 1.03183 (15) | 0.9546 (4) | 0.4121 (2) | 0.0781 (11) | |
H2A | 1.0374 | 1.0144 | 0.4497 | 0.094* | |
H2B | 1.0657 | 0.9447 | 0.4159 | 0.094* | |
N3 | 0.7274 (2) | 0.3980 (5) | 0.4262 (3) | 0.1002 (14) | |
C1 | 0.90007 (16) | 0.8060 (4) | 0.3942 (2) | 0.0561 (9) | |
C2 | 0.83754 (14) | 0.7855 (4) | 0.3618 (2) | 0.0489 (8) | |
C3 | 0.80568 (15) | 0.6814 (4) | 0.3053 (2) | 0.0563 (9) | |
H3 | 0.8241 | 0.6228 | 0.2881 | 0.068* | |
C4 | 0.74798 (15) | 0.6634 (4) | 0.2745 (2) | 0.0588 (9) | |
H4 | 0.7275 | 0.5935 | 0.2367 | 0.071* | |
C5 | 0.72034 (15) | 0.7500 (4) | 0.3001 (2) | 0.0550 (9) | |
C6 | 0.75117 (15) | 0.8530 (4) | 0.3565 (2) | 0.0581 (9) | |
H6 | 0.7328 | 0.9103 | 0.3741 | 0.070* | |
C7 | 0.80910 (15) | 0.8709 (4) | 0.3866 (2) | 0.0538 (9) | |
H7 | 0.8294 | 0.9414 | 0.4241 | 0.065* | |
C8 | 0.63392 (16) | 0.7940 (5) | 0.2969 (2) | 0.0612 (10) | |
C9 | 0.63948 (19) | 0.7328 (4) | 0.3591 (3) | 0.0736 (12) | |
H9 | 0.6631 | 0.6501 | 0.3817 | 0.088* | |
C10 | 0.60983 (17) | 0.7938 (4) | 0.3885 (2) | 0.0660 (11) | |
H10 | 0.6126 | 0.7505 | 0.4302 | 0.079* | |
C11 | 0.57618 (14) | 0.9188 (4) | 0.3560 (2) | 0.0532 (9) | |
C12 | 0.57183 (15) | 0.9781 (4) | 0.2931 (2) | 0.0578 (9) | |
H12 | 0.5493 | 1.0627 | 0.2710 | 0.069* | |
C13 | 0.60007 (15) | 0.9151 (4) | 0.2624 (2) | 0.0615 (10) | |
H13 | 0.5961 | 0.9543 | 0.2192 | 0.074* | |
C14 | 0.54638 (16) | 0.9909 (5) | 0.3901 (2) | 0.0618 (10) | |
C15 | 1.1043 (2) | 0.6820 (8) | 0.5769 (3) | 0.1136 (18) | |
H15A | 1.1097 | 0.5759 | 0.5765 | 0.170* | |
H15B | 1.1203 | 0.7151 | 0.6274 | 0.170* | |
H15C | 1.1231 | 0.7325 | 0.5559 | 0.170* | |
C16 | 0.9915 (2) | 1.0269 (6) | 0.3416 (3) | 0.1081 (17) | |
H16A | 0.9865 | 0.9662 | 0.3012 | 0.162* | |
H16B | 1.0061 | 1.1234 | 0.3399 | 0.162* | |
H16C | 0.9553 | 1.0388 | 0.3372 | 0.162* | |
C17 | 0.7729 (4) | 0.4772 (9) | 0.4917 (4) | 0.176 (3) | |
H17A | 0.7756 | 0.5780 | 0.4781 | 0.264* | |
H17B | 0.8088 | 0.4268 | 0.5102 | 0.264* | |
H17C | 0.7642 | 0.4790 | 0.5298 | 0.264* | |
C18 | 0.7438 (3) | 0.3428 (8) | 0.3747 (4) | 0.135 (2) | |
H18A | 0.7627 | 0.2477 | 0.3920 | 0.202* | |
H18B | 0.7694 | 0.4132 | 0.3731 | 0.202* | |
H18C | 0.7101 | 0.3315 | 0.3256 | 0.202* | |
C19 | 0.6771 (3) | 0.3747 (5) | 0.4157 (4) | 0.0996 (17) | |
C20 | 0.6342 (3) | 0.3043 (9) | 0.3452 (5) | 0.155 (3) | |
H20A | 0.6380 | 0.1973 | 0.3502 | 0.233* | |
H20B | 0.6398 | 0.3363 | 0.3064 | 0.233* | |
H20C | 0.5965 | 0.3329 | 0.3326 | 0.233* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Zn1 | 0.0438 (3) | 0.0778 (3) | 0.0601 (3) | 0.00039 (19) | 0.0331 (2) | −0.0105 (2) |
O1 | 0.0482 (14) | 0.0878 (19) | 0.0793 (19) | −0.0015 (12) | 0.0420 (14) | −0.0218 (14) |
O2 | 0.0553 (16) | 0.092 (2) | 0.077 (2) | −0.0088 (14) | 0.0396 (15) | −0.0233 (16) |
O3 | 0.0444 (15) | 0.107 (2) | 0.092 (2) | −0.0008 (13) | 0.0398 (15) | −0.0396 (17) |
O4 | 0.094 (2) | 0.116 (2) | 0.095 (2) | −0.0078 (19) | 0.076 (2) | −0.0023 (19) |
O5 | 0.0635 (17) | 0.086 (2) | 0.078 (2) | 0.0096 (14) | 0.0498 (15) | −0.0068 (15) |
O6 | 0.172 (4) | 0.111 (3) | 0.147 (4) | 0.017 (3) | 0.123 (4) | 0.000 (3) |
N1 | 0.062 (3) | 0.237 (6) | 0.069 (3) | 0.002 (3) | 0.043 (2) | 0.012 (3) |
N2 | 0.069 (2) | 0.094 (3) | 0.084 (3) | −0.0183 (19) | 0.049 (2) | −0.030 (2) |
N3 | 0.104 (4) | 0.096 (3) | 0.117 (4) | 0.025 (3) | 0.070 (3) | 0.018 (3) |
C1 | 0.048 (2) | 0.069 (2) | 0.060 (2) | 0.0024 (18) | 0.0350 (19) | −0.0031 (19) |
C2 | 0.0444 (19) | 0.061 (2) | 0.049 (2) | 0.0049 (14) | 0.0307 (17) | 0.0014 (15) |
C3 | 0.047 (2) | 0.069 (2) | 0.060 (2) | 0.0050 (17) | 0.0333 (19) | −0.0123 (19) |
C4 | 0.047 (2) | 0.076 (2) | 0.058 (2) | 0.0005 (17) | 0.0308 (18) | −0.0182 (19) |
C5 | 0.0406 (18) | 0.066 (2) | 0.064 (2) | 0.0024 (16) | 0.0320 (17) | −0.0103 (19) |
C6 | 0.052 (2) | 0.063 (2) | 0.074 (3) | 0.0047 (17) | 0.044 (2) | −0.0121 (19) |
C7 | 0.049 (2) | 0.060 (2) | 0.059 (2) | 0.0008 (15) | 0.0335 (18) | −0.0095 (17) |
C8 | 0.042 (2) | 0.078 (2) | 0.071 (3) | −0.0061 (17) | 0.0349 (19) | −0.020 (2) |
C9 | 0.063 (3) | 0.064 (2) | 0.099 (4) | 0.0134 (19) | 0.046 (3) | 0.000 (2) |
C10 | 0.060 (2) | 0.071 (2) | 0.076 (3) | −0.0045 (19) | 0.042 (2) | 0.005 (2) |
C11 | 0.0364 (18) | 0.067 (2) | 0.063 (2) | −0.0029 (15) | 0.0306 (17) | −0.0053 (18) |
C12 | 0.0427 (19) | 0.070 (2) | 0.064 (2) | 0.0070 (16) | 0.0313 (18) | 0.0011 (19) |
C13 | 0.045 (2) | 0.085 (3) | 0.064 (2) | 0.0033 (18) | 0.0356 (19) | −0.005 (2) |
C14 | 0.044 (2) | 0.088 (3) | 0.064 (3) | −0.0047 (19) | 0.0354 (19) | −0.009 (2) |
C15 | 0.080 (4) | 0.155 (5) | 0.082 (4) | 0.006 (4) | 0.028 (3) | 0.022 (4) |
C16 | 0.105 (4) | 0.109 (4) | 0.104 (4) | −0.023 (3) | 0.052 (4) | 0.005 (3) |
C17 | 0.157 (7) | 0.146 (6) | 0.115 (6) | −0.024 (6) | 0.000 (5) | −0.023 (5) |
C18 | 0.159 (6) | 0.149 (6) | 0.153 (6) | 0.025 (5) | 0.121 (6) | 0.012 (5) |
C19 | 0.126 (5) | 0.068 (3) | 0.117 (5) | 0.005 (3) | 0.073 (4) | 0.005 (3) |
C20 | 0.125 (6) | 0.154 (6) | 0.180 (8) | −0.054 (5) | 0.077 (6) | −0.062 (6) |
Zn1—O1 | 1.949 (3) | C6—H6 | 0.9300 |
Zn1—O5i | 1.952 (3) | C7—H7 | 0.9300 |
Zn1—N1 | 1.996 (4) | C8—C9 | 1.358 (6) |
Zn1—N2 | 2.047 (4) | C8—C13 | 1.358 (5) |
O1—C1 | 1.275 (4) | C9—C10 | 1.380 (6) |
O2—C1 | 1.238 (4) | C9—H9 | 0.9300 |
O3—C5 | 1.372 (4) | C10—C11 | 1.377 (5) |
O3—C8 | 1.407 (4) | C10—H10 | 0.9300 |
O4—C14 | 1.228 (5) | C11—C12 | 1.379 (5) |
O5—C14 | 1.267 (5) | C11—C14 | 1.501 (5) |
O5—Zn1ii | 1.952 (3) | C12—C13 | 1.378 (5) |
O6—C19 | 1.246 (6) | C12—H12 | 0.9300 |
N1—C15 | 1.374 (7) | C13—H13 | 0.9300 |
N1—H1A | 0.9000 | C15—H15A | 0.9600 |
N1—H1B | 0.9000 | C15—H15B | 0.9600 |
N2—C16 | 1.450 (6) | C15—H15C | 0.9600 |
N2—H2A | 0.9000 | C16—H16A | 0.9600 |
N2—H2B | 0.9000 | C16—H16B | 0.9600 |
N3—C19 | 1.302 (7) | C16—H16C | 0.9600 |
N3—C17 | 1.462 (8) | C17—H17A | 0.9600 |
N3—C18 | 1.472 (7) | C17—H17B | 0.9600 |
C1—C2 | 1.488 (5) | C17—H17C | 0.9600 |
C2—C7 | 1.386 (4) | C18—H18A | 0.9600 |
C2—C3 | 1.393 (5) | C18—H18B | 0.9600 |
C3—C4 | 1.369 (5) | C18—H18C | 0.9600 |
C3—H3 | 0.9300 | C19—C20 | 1.460 (9) |
C4—C5 | 1.386 (5) | C20—H20A | 0.9600 |
C4—H4 | 0.9300 | C20—H20B | 0.9600 |
C5—C6 | 1.380 (5) | C20—H20C | 0.9600 |
C6—C7 | 1.377 (5) | ||
O1—Zn1—O5i | 106.28 (11) | C10—C9—H9 | 120.2 |
O1—Zn1—N1 | 114.24 (15) | C11—C10—C9 | 119.9 (4) |
O5i—Zn1—N1 | 114.99 (17) | C11—C10—H10 | 120.1 |
O1—Zn1—N2 | 115.75 (14) | C9—C10—H10 | 120.1 |
O5i—Zn1—N2 | 98.65 (12) | C10—C11—C12 | 118.7 (3) |
N1—Zn1—N2 | 106.15 (19) | C10—C11—C14 | 120.2 (4) |
C1—O1—Zn1 | 110.9 (2) | C12—C11—C14 | 121.0 (3) |
C5—O3—C8 | 118.1 (3) | C13—C12—C11 | 121.6 (4) |
C14—O5—Zn1ii | 121.1 (3) | C13—C12—H12 | 119.2 |
C15—N1—Zn1 | 120.9 (3) | C11—C12—H12 | 119.2 |
C15—N1—H1A | 107.1 | C8—C13—C12 | 118.0 (4) |
Zn1—N1—H1A | 107.1 | C8—C13—H13 | 121.0 |
C15—N1—H1B | 107.1 | C12—C13—H13 | 121.0 |
Zn1—N1—H1B | 107.1 | O4—C14—O5 | 124.7 (4) |
H1A—N1—H1B | 106.8 | O4—C14—C11 | 120.0 (4) |
C16—N2—Zn1 | 114.2 (3) | O5—C14—C11 | 115.3 (4) |
C16—N2—H2A | 108.7 | N1—C15—H15A | 109.5 |
Zn1—N2—H2A | 108.7 | N1—C15—H15B | 109.5 |
C16—N2—H2B | 108.7 | H15A—C15—H15B | 109.5 |
Zn1—N2—H2B | 108.7 | N1—C15—H15C | 109.5 |
H2A—N2—H2B | 107.6 | H15A—C15—H15C | 109.5 |
C19—N3—C17 | 122.3 (6) | H15B—C15—H15C | 109.5 |
C19—N3—C18 | 123.1 (6) | N2—C16—H16A | 109.5 |
C17—N3—C18 | 114.7 (6) | N2—C16—H16B | 109.5 |
O2—C1—O1 | 123.1 (3) | H16A—C16—H16B | 109.5 |
O2—C1—C2 | 120.5 (3) | N2—C16—H16C | 109.5 |
O1—C1—C2 | 116.4 (3) | H16A—C16—H16C | 109.5 |
C7—C2—C3 | 117.9 (3) | H16B—C16—H16C | 109.5 |
C7—C2—C1 | 120.7 (3) | N3—C17—H17A | 109.5 |
C3—C2—C1 | 121.3 (3) | N3—C17—H17B | 109.5 |
C4—C3—C2 | 121.7 (3) | H17A—C17—H17B | 109.5 |
C4—C3—H3 | 119.2 | N3—C17—H17C | 109.5 |
C2—C3—H3 | 119.2 | H17A—C17—H17C | 109.5 |
C3—C4—C5 | 119.5 (3) | H17B—C17—H17C | 109.5 |
C3—C4—H4 | 120.3 | N3—C18—H18A | 109.5 |
C5—C4—H4 | 120.3 | N3—C18—H18B | 109.5 |
O3—C5—C6 | 124.4 (3) | H18A—C18—H18B | 109.5 |
O3—C5—C4 | 115.8 (3) | N3—C18—H18C | 109.5 |
C6—C5—C4 | 119.8 (3) | H18A—C18—H18C | 109.5 |
C7—C6—C5 | 120.2 (3) | H18B—C18—H18C | 109.5 |
C7—C6—H6 | 119.9 | O6—C19—N3 | 120.7 (6) |
C5—C6—H6 | 119.9 | O6—C19—C20 | 122.5 (7) |
C6—C7—C2 | 120.9 (3) | N3—C19—C20 | 116.7 (6) |
C6—C7—H7 | 119.5 | C19—C20—H20A | 109.5 |
C2—C7—H7 | 119.5 | C19—C20—H20B | 109.5 |
C9—C8—C13 | 122.1 (4) | H20A—C20—H20B | 109.5 |
C9—C8—O3 | 118.7 (4) | C19—C20—H20C | 109.5 |
C13—C8—O3 | 119.2 (4) | H20A—C20—H20C | 109.5 |
C8—C9—C10 | 119.7 (4) | H20B—C20—H20C | 109.5 |
C8—C9—H9 | 120.2 |
Symmetry codes: (i) x+1/2, y−1/2, z; (ii) x−1/2, y+1/2, z. |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1B···O4iii | 0.90 | 2.21 | 2.991 (5) | 145 |
N2—H2A···O2iv | 0.90 | 2.11 | 2.966 (4) | 159 |
N2—H2B···O6v | 0.90 | 2.40 | 3.276 (6) | 164 |
Symmetry codes: (iii) −x+3/2, −y+3/2, −z+1; (iv) −x+2, −y+2, −z+1; (v) x+1/2, y+1/2, z. |
Experimental details
Crystal data | |
Chemical formula | [Zn(C14H8O5)(CH5N)2]·C4H9NO |
Mr | 470.82 |
Crystal system, space group | Monoclinic, C2/c |
Temperature (K) | 293 |
a, b, c (Å) | 27.617 (6), 8.9276 (18), 21.212 (4) |
β (°) | 122.46 (3) |
V (Å3) | 4413 (2) |
Z | 8 |
Radiation type | Mo Kα |
µ (mm−1) | 1.15 |
Crystal size (mm) | 0.35 × 0.34 × 0.15 |
Data collection | |
Diffractometer | Rigaku RAXIS-RAPID |
Absorption correction | Multi-scan (Higashi, 1995) |
Tmin, Tmax | 0.690, 0.850 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 20180, 4942, 2843 |
Rint | 0.056 |
(sin θ/λ)max (Å−1) | 0.649 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.053, 0.149, 1.04 |
No. of reflections | 4942 |
No. of parameters | 276 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.43, −0.47 |
Computer programs: RAPID-AUTO (Rigaku, 1998), SHELXS97 (Sheldrick, 1997), SHELXL97 (Sheldrick, 1997), SHELXTL (Bruker, 2000).
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1B···O4i | 0.90 | 2.21 | 2.991 (5) | 145 |
N2—H2A···O2ii | 0.90 | 2.11 | 2.966 (4) | 159 |
N2—H2B···O6iii | 0.90 | 2.40 | 3.276 (6) | 164 |
Symmetry codes: (i) −x+3/2, −y+3/2, −z+1; (ii) −x+2, −y+2, −z+1; (iii) x+1/2, y+1/2, z. |
Acknowledgements
This work was supported by the National Science Foundation of China (50678045), the Science Foundation of Heilongjiang Province (E200519), the China Postdoctoral Science Foundation and Heilongjiang Postdoctoral Financial Assistance.
References
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Recently, great interest has been focused on the design and synthesis of coordination polymers because of their intriguing network topologies and promising applications (Yaghi et al., 1998). It is well known that the selection of appropriate organic ligands is crucial to the design and synthesis of the supramolecular architectures. In preparing target metal complexes, carboxylate and organic amine ligands have been frequently employed (Luo et al., 2003). More and more interest has focused on long flexible ligands recently, and how to avoid, or make use of, their interpenetration to construct novel coordination polymers is an interesting challenge. 4,4'-oxybis(benzoic acid) (H2oba) ligand, in which two benzene moieties are linked together by a µ2-O bridge, is the typical example of flexible ligand and may offer more possibilities in geometry configuration and coordination modes towards the metal ions. As far as we know, several coordination polymers based on 4,4'-oxybis(benzoic acid) have been obtained (Kondo et al., 2004; Sun et al., 2005). We present here the solvothermal synthesis and crystal structure of title coordination polymer, [Zn(C14H8O5)(CNH5)2.(C4NOH9)]n, (I).
The asymmetric unit of (I) consists of one crystallogaphically independent Zn(II) cation, one oba ligand, two methylamine and one dimethylacetamide molecule. Fig.1 shows the molecular structure of (I) with the atom-labelling scheme. The Zn(II) cation has a slightly distorted tetrahedral coordination geometry and formed by two carboxy oxygen atoms (O1 and O5A) from two oba ligands and two nitrogen atoms (N1 and N2) from two methylamine molecule, with Zn—O distances of 1.949 (3)–1.952 (3) Å and Zn—N distances in the range of 1.996 (4)–2.047 (4) Å. These values are in good agreement with those found in other extended structures (Kondo et al., 2004). The O—Zn—O and N—Zn—N bond angles are 106.28 (11)° and 106.15 (19)°, respectively. The N—Zn—O angles are in the range from 98.65 (12) to 115.75 (14)°. In (I), two carboxylate groups of each oba exhibit bis-monodentate coordination modes, namely oba anion acts as µ2-bridging ligand to connect with two Zn(II) centers and each Zn(II) center connects with two oba anions to form the chain arrangement with Zn···Zn distance of 14.512 (4) Å (Fig. 2). It is found that there are hydrogen bonding interactions between adjacent chains. The N—H···O hydrogen bonds involve the uncoordinated carboxylic oxygen atoms of oba and N—H groups of methylamine molecules from adjacent chains (Table 2). In addition, dimethylacetamide molecules located in the crystal lattice with N—H···O hydrogen bonding interactions involving the oxygen atoms of dimethylacetamide molecules and N—H groups of methylamine molecules (Table 2). Finally, the chains are linked together by hydrogen bonds to form two-dimensional supramolecular network (Fig. 2).