metal-organic compounds
trans-Bis(2-acetamido-5-methylbenzoato-κO1)tetraaquazinc
aCollege of Chemistry & Material Science, Fujian Key Laboratory of Polymer Materials, Fujian Normal University, Fuzhou 350007, People's Republic of China
*Correspondence e-mail: hjf@fjnu.edu.cn
In the title compound, [Zn(C10H10NO3)2(H2O)4], the ZnII atom lies on a crystallographic inversion center and is six-coordinated by two monodentate trans-related 2-(N-acetylamino)-5-methylbenzoato ligands and four water molecules, giving a slightly distorted octahedral geometry. There are two intramolecular hydrogen bonds [amine N—H⋯Ocarboxyl and water O—H⋯Ocarboxyl], while extensive intermolecular water O—H⋯O hydrogen-bonding interactions extend the complex units into a two-dimensional network structure along (100).
Related literature
The study of metal coordination polymers has enhanced our understanding of the relationship between molecular structure and material function, see: Dai et al. (2005); Moulton & Zaworotko (2001).
Experimental
Crystal data
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Refinement
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Data collection: SMART (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: SHELXTL.
Supporting information
10.1107/S1600536811012013/zs2102sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536811012013/zs2102Isup2.hkl
ZnSO4.7H2O (1.00 mmol, 0.28 g), 2-(N-acetylamino)-5-methylbenzoic acid (HNB) (1.00 mmol, 0.19 g) and NaOH (1.00 mmol, 0.04 g) were mixed in water (15 ml) and heated at 403 K for 3 days in a sealed 25 ml Teflon-lined stainless steel vessel under autogenous pressure. After cooling to room temperature at a rate of 5° C h-1, yellow block crystals were isolated, washed with ethanol and then dried in air (33% yield).
H atoms attached to carbon and nitrogen were positioned geometrically and treated using a riding model, fixing the bond lengths at 0.86, 0.96 and 0.93 Å for NH, CH2 and aromatic CH groups, respectively and Uiso(H) = 1.2Ueq(N, C)]. The aqua H atoms were located from difference maps and their coordinates refined but with Uiso(H) = 1.5Ueq(O).
Data collection: SMART (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: SHELXTL (Sheldrick, 2008).Fig. 1. Local coordination around Zn ion in (I). Displacement ellipsoids are drawn at the 50% probability level. Symmetry code: (a): -x + 1, -y, -z + 2 | |
Fig. 2. The crystal packing of (I) with hydrogen bonds shown as dashed lines. |
[Zn(C10H10NO3)2(H2O)4] | F(000) = 1088 |
Mr = 521.83 | Dx = 1.523 Mg m−3 |
Monoclinic, C2/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -C 2yc | Cell parameters from 4107 reflections |
a = 19.300 (4) Å | θ = 3.1–25.6° |
b = 9.3000 (19) Å | µ = 1.14 mm−1 |
c = 13.300 (3) Å | T = 296 K |
β = 107.60 (3)° | Block, yellow |
V = 2275.5 (9) Å3 | 0.42 × 0.40 × 0.25 mm |
Z = 4 |
Bruker SMART CCD diffractometer | 2130 independent reflections |
Radiation source: fine-focus sealed tube | 1941 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.029 |
ω scans | θmax = 25.6°, θmin = 3.1° |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | h = −23→21 |
Tmin = 0.626, Tmax = 0.752 | k = −10→11 |
10817 measured reflections | l = −16→16 |
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)] = 0.055 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.179 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.11 | w = 1/[σ2(Fo2) + (0.1075P)2 + 9.1602P] where P = (Fo2 + 2Fc2)/3 |
2130 reflections | (Δ/σ)max = 0.001 |
164 parameters | Δρmax = 0.49 e Å−3 |
2 restraints | Δρmin = −0.77 e Å−3 |
[Zn(C10H10NO3)2(H2O)4] | V = 2275.5 (9) Å3 |
Mr = 521.83 | Z = 4 |
Monoclinic, C2/c | Mo Kα radiation |
a = 19.300 (4) Å | µ = 1.14 mm−1 |
b = 9.3000 (19) Å | T = 296 K |
c = 13.300 (3) Å | 0.42 × 0.40 × 0.25 mm |
β = 107.60 (3)° |
Bruker SMART CCD diffractometer | 2130 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | 1941 reflections with I > 2σ(I) |
Tmin = 0.626, Tmax = 0.752 | Rint = 0.029 |
10817 measured reflections |
R[F2 > 2σ(F2)] = 0.055 | 2 restraints |
wR(F2) = 0.179 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.11 | Δρmax = 0.49 e Å−3 |
2130 reflections | Δρmin = −0.77 e Å−3 |
164 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 | 0.5000 | 0.0000 | 1.0000 | 0.0283 (3) | |
N1 | 0.61735 (18) | 0.4086 (4) | 1.0380 (3) | 0.0268 (7) | |
H1A | 0.6034 | 0.3279 | 1.0569 | 0.032* | |
O1W | 0.42661 (16) | 0.0994 (3) | 0.8725 (2) | 0.0280 (6) | |
H1WA | 0.410 (2) | 0.173 (3) | 0.890 (3) | 0.034* | |
H1WB | 0.422 (3) | 0.085 (4) | 0.8095 (18) | 0.034* | |
O1 | 0.57941 (14) | 0.1422 (3) | 0.9864 (2) | 0.0247 (6) | |
O2W | 0.47378 (16) | 0.1539 (3) | 1.1025 (2) | 0.0299 (7) | |
H2WA | 0.449 (2) | 0.211 (4) | 1.063 (3) | 0.036* | |
H2WB | 0.456 (2) | 0.097 (4) | 1.136 (3) | 0.036* | |
O2 | 0.6109 (2) | 0.6481 (3) | 1.0578 (3) | 0.0428 (8) | |
O3 | 0.59193 (17) | 0.0609 (3) | 0.8358 (2) | 0.0328 (7) | |
C1 | 0.5978 (2) | 0.5248 (5) | 1.0801 (3) | 0.0296 (9) | |
C2 | 0.7488 (2) | 0.4914 (4) | 0.8911 (4) | 0.0296 (10) | |
H2A | 0.7806 | 0.5647 | 0.8871 | 0.035* | |
C3 | 0.65394 (19) | 0.2748 (4) | 0.9062 (3) | 0.0208 (7) | |
C4 | 0.7454 (2) | 0.3684 (4) | 0.8315 (3) | 0.0269 (8) | |
C5 | 0.6976 (2) | 0.2625 (4) | 0.8402 (3) | 0.0244 (8) | |
H5A | 0.6943 | 0.1792 | 0.8003 | 0.029* | |
C6 | 0.6584 (2) | 0.3999 (4) | 0.9657 (3) | 0.0245 (8) | |
C7 | 0.7056 (3) | 0.5073 (4) | 0.9566 (4) | 0.0298 (10) | |
H7A | 0.7085 | 0.5916 | 0.9952 | 0.036* | |
C8 | 0.60481 (19) | 0.1505 (4) | 0.9089 (3) | 0.0218 (8) | |
C9 | 0.7926 (2) | 0.3494 (5) | 0.7609 (4) | 0.0374 (10) | |
H9A | 0.7825 | 0.2581 | 0.7259 | 0.056* | |
H9B | 0.8428 | 0.3532 | 0.8024 | 0.056* | |
H9C | 0.7827 | 0.4249 | 0.7093 | 0.056* | |
C10 | 0.5580 (3) | 0.4978 (5) | 1.1599 (4) | 0.0379 (11) | |
H10A | 0.5459 | 0.5881 | 1.1854 | 0.057* | |
H10B | 0.5884 | 0.4433 | 1.2178 | 0.057* | |
H10C | 0.5142 | 0.4449 | 1.1273 | 0.057* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Zn1 | 0.0351 (5) | 0.0249 (4) | 0.0276 (4) | −0.0034 (2) | 0.0136 (3) | −0.0013 (2) |
N1 | 0.0366 (18) | 0.0198 (16) | 0.0284 (17) | −0.0013 (14) | 0.0166 (14) | −0.0030 (13) |
O1W | 0.0396 (16) | 0.0238 (14) | 0.0197 (13) | 0.0070 (12) | 0.0077 (12) | −0.0002 (11) |
O1 | 0.0332 (14) | 0.0225 (13) | 0.0230 (13) | −0.0110 (11) | 0.0154 (11) | −0.0047 (10) |
O2W | 0.0450 (17) | 0.0217 (14) | 0.0295 (15) | −0.0044 (12) | 0.0210 (13) | −0.0029 (11) |
O2 | 0.066 (2) | 0.0219 (16) | 0.0467 (19) | 0.0081 (14) | 0.0265 (17) | 0.0020 (13) |
O3 | 0.0511 (18) | 0.0284 (15) | 0.0262 (15) | −0.0162 (14) | 0.0224 (13) | −0.0083 (12) |
C1 | 0.030 (2) | 0.031 (2) | 0.026 (2) | 0.0014 (17) | 0.0064 (17) | −0.0044 (17) |
C2 | 0.031 (2) | 0.024 (2) | 0.035 (2) | −0.0084 (15) | 0.0119 (18) | 0.0032 (15) |
C3 | 0.0233 (17) | 0.0192 (17) | 0.0194 (17) | −0.0015 (14) | 0.0058 (14) | 0.0028 (14) |
C4 | 0.0258 (19) | 0.032 (2) | 0.0234 (19) | −0.0044 (16) | 0.0076 (15) | 0.0052 (16) |
C5 | 0.0286 (19) | 0.0226 (18) | 0.0230 (18) | −0.0039 (15) | 0.0093 (15) | −0.0005 (14) |
C6 | 0.0295 (19) | 0.0223 (19) | 0.0215 (18) | −0.0003 (16) | 0.0076 (15) | 0.0006 (15) |
C7 | 0.038 (2) | 0.020 (2) | 0.033 (2) | −0.0051 (15) | 0.012 (2) | −0.0021 (15) |
C8 | 0.0249 (18) | 0.0198 (17) | 0.0215 (18) | −0.0028 (14) | 0.0084 (15) | 0.0023 (14) |
C9 | 0.038 (2) | 0.043 (3) | 0.038 (2) | −0.0123 (19) | 0.021 (2) | −0.0001 (19) |
C10 | 0.043 (3) | 0.039 (3) | 0.037 (3) | −0.0061 (18) | 0.021 (2) | −0.0118 (18) |
Zn1—O1Wi | 2.070 (3) | C2—C7 | 1.384 (7) |
Zn1—O1W | 2.070 (3) | C2—C4 | 1.382 (6) |
Zn1—O1 | 2.073 (2) | C2—H2A | 0.9300 |
Zn1—O1i | 2.073 (2) | C3—C5 | 1.393 (5) |
Zn1—O2W | 2.140 (3) | C3—C6 | 1.395 (5) |
Zn1—O2Wi | 2.140 (3) | C3—C8 | 1.503 (5) |
N1—C1 | 1.324 (5) | C4—C5 | 1.379 (5) |
N1—C6 | 1.421 (5) | C4—C9 | 1.503 (6) |
N1—H1A | 0.8600 | C5—H5A | 0.9300 |
O1W—H1WA | 0.811 (18) | C6—C7 | 1.382 (6) |
O1W—H1WB | 0.826 (18) | C7—H7A | 0.9300 |
O1—C8 | 1.270 (4) | C9—H9A | 0.9600 |
O2W—H2WA | 0.80 (4) | C9—H9B | 0.9600 |
O2W—H2WB | 0.83 (4) | C9—H9C | 0.9600 |
O2—C1 | 1.230 (5) | C10—H10A | 0.9600 |
O3—C8 | 1.247 (5) | C10—H10B | 0.9600 |
C1—C10 | 1.508 (6) | C10—H10C | 0.9600 |
O1Wi—Zn1—O1W | 180.00 (12) | C5—C3—C6 | 118.7 (3) |
O1Wi—Zn1—O1 | 90.89 (11) | C5—C3—C8 | 117.2 (3) |
O1W—Zn1—O1 | 89.11 (11) | C6—C3—C8 | 124.0 (3) |
O1Wi—Zn1—O1i | 89.11 (11) | C5—C4—C2 | 117.4 (4) |
O1W—Zn1—O1i | 90.89 (11) | C5—C4—C9 | 121.1 (4) |
O1—Zn1—O1i | 180.0 | C2—C4—C9 | 121.5 (4) |
O1Wi—Zn1—O2W | 90.67 (11) | C4—C5—C3 | 122.8 (4) |
O1W—Zn1—O2W | 89.33 (11) | C4—C5—H5A | 118.6 |
O1—Zn1—O2W | 87.28 (10) | C3—C5—H5A | 118.6 |
O1i—Zn1—O2W | 92.72 (10) | C7—C6—C3 | 118.8 (4) |
O1Wi—Zn1—O2Wi | 89.33 (11) | C7—C6—N1 | 122.4 (3) |
O1W—Zn1—O2Wi | 90.67 (11) | C3—C6—N1 | 118.7 (3) |
O1—Zn1—O2Wi | 92.72 (10) | C6—C7—C2 | 121.1 (4) |
O1i—Zn1—O2Wi | 87.28 (10) | C6—C7—H7A | 119.4 |
O2W—Zn1—O2Wi | 180.000 (1) | C2—C7—H7A | 119.4 |
C1—N1—C6 | 128.4 (3) | O3—C8—O1 | 123.9 (3) |
C1—N1—H1A | 115.8 | O3—C8—C3 | 118.3 (3) |
C6—N1—H1A | 115.8 | O1—C8—C3 | 117.8 (3) |
Zn1—O1W—H1WA | 112 (3) | C4—C9—H9A | 109.5 |
Zn1—O1W—H1WB | 126 (3) | C4—C9—H9B | 109.5 |
H1WA—O1W—H1WB | 119 (3) | H9A—C9—H9B | 109.5 |
C8—O1—Zn1 | 125.9 (2) | C4—C9—H9C | 109.5 |
Zn1—O2W—H2WA | 104 (4) | H9A—C9—H9C | 109.5 |
Zn1—O2W—H2WB | 98 (3) | H9B—C9—H9C | 109.5 |
H2WA—O2W—H2WB | 122 (3) | C1—C10—H10A | 109.5 |
O2—C1—N1 | 123.5 (4) | C1—C10—H10B | 109.5 |
O2—C1—C10 | 120.8 (4) | H10A—C10—H10B | 109.5 |
N1—C1—C10 | 115.7 (4) | C1—C10—H10C | 109.5 |
C7—C2—C4 | 121.1 (4) | H10A—C10—H10C | 109.5 |
C7—C2—H2A | 119.4 | H10B—C10—H10C | 109.5 |
C4—C2—H2A | 119.4 |
Symmetry code: (i) −x+1, −y, −z+2. |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1A···O1 | 0.86 | 1.95 | 2.616 (4) | 133 |
O1W—H1WA···O2ii | 0.81 (2) | 1.90 (2) | 2.704 (4) | 170 (5) |
O1W—H1WB···O3iii | 0.83 (2) | 1.88 (2) | 2.707 (4) | 177 (4) |
O2W—H2WA···O2ii | 0.80 (4) | 2.12 (4) | 2.916 (5) | 172 (5) |
O2W—H2WB···O3i | 0.83 (4) | 1.84 (3) | 2.627 (4) | 159 (5) |
Symmetry codes: (i) −x+1, −y, −z+2; (ii) −x+1, −y+1, −z+2; (iii) −x+1, y, −z+3/2. |
Experimental details
Crystal data | |
Chemical formula | [Zn(C10H10NO3)2(H2O)4] |
Mr | 521.83 |
Crystal system, space group | Monoclinic, C2/c |
Temperature (K) | 296 |
a, b, c (Å) | 19.300 (4), 9.3000 (19), 13.300 (3) |
β (°) | 107.60 (3) |
V (Å3) | 2275.5 (9) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 1.14 |
Crystal size (mm) | 0.42 × 0.40 × 0.25 |
Data collection | |
Diffractometer | Bruker SMART CCD diffractometer |
Absorption correction | Multi-scan (SADABS; Sheldrick, 1996) |
Tmin, Tmax | 0.626, 0.752 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 10817, 2130, 1941 |
Rint | 0.029 |
(sin θ/λ)max (Å−1) | 0.607 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.055, 0.179, 1.11 |
No. of reflections | 2130 |
No. of parameters | 164 |
No. of restraints | 2 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.49, −0.77 |
Computer programs: SMART (Bruker, 2004), SAINT (Bruker, 2004), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1A···O1 | 0.86 | 1.95 | 2.616 (4) | 133 |
O1W—H1WA···O2i | 0.811 (18) | 1.90 (2) | 2.704 (4) | 170 (5) |
O1W—H1WB···O3ii | 0.826 (18) | 1.882 (19) | 2.707 (4) | 177 (4) |
O2W—H2WA···O2i | 0.80 (4) | 2.12 (4) | 2.916 (5) | 172 (5) |
O2W—H2WB···O3iii | 0.83 (4) | 1.84 (3) | 2.627 (4) | 159 (5) |
Symmetry codes: (i) −x+1, −y+1, −z+2; (ii) −x+1, y, −z+3/2; (iii) −x+1, −y, −z+2. |
Acknowledgements
This work was supported financially by the Foundation of the Ministry of Education of Fujian Province (JB08037).
References
Bruker (2004). SMART and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Dai, Y. M., Ma, E., Tang, E., Zhang, J., Li, Z. J., Huang, X. & Yao, Y. G. (2005). Cryst. Growth Des. 5, 1313–1315. CrossRef CAS Google Scholar
Moulton, B. & Zaworotko, M. J. (2001). Chem. Rev. 101, 1629–1639. Web of Science CrossRef PubMed CAS Google Scholar
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Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
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 recent decades, the study of metal coordination polymers has witnessed tremendous growth as an attractive interface between synthetic chemistry and materials science, which significantly boosts the understanding of the relationship between molecular structure and material function (Moulton & Zaworotko, 2001; Dai et al., 2005). The crystal engineering of coordination polymers is highly influenced by the judicious choice of ligands, metal coordination geometry, template design and other subtle factors, such as counterions, solvent choice and reaction temperature. The deprotonated 2-(N-acetylamino)-5-methylbenzoic acid (HNB) ligands are good candidates in this respect for the construction of supramolecular architectures because in such bitopical ligands the N-acetyl group can act as a hydrogen-bond donor and/or acceptor, while the carboxyl function has strong coordination abilities with many metal ions. Taking these advantages into account, recently we have begun to assemble HNB and zinc ions into polymeric complexes under hydrothermal conditions. Herein, we report the synthesis and crystal structure of the title compound, [Zn(C10H10NO3)2(H2O)4] (I).
In the structure of (I) the ZnII metal center lies on a crystallographic inversion center. The local coordination environment around ZnII atom is slightly distorted octahedral, comprising two monodentate trans-related 2-(N-acetylamino)-5-methylbenzoato ligands and four water molecules (Fig. 1). Two intramolecular hydrogen bonds [amine N—H···Ocarboxyl and water O—H···Ocarboxyl] stabilize the complex units while extensive intermolecular water O—H···Oacetyl hydrogen-bonding interactions are observed in the structure (Table 1), giving rise to double-stranded chains. Further interactions involving the coordinated water ligands and the uncoordinated O atoms of the carboxyl group are gives a two-dimensional network structure (Fig. 2).