metal-organic compounds
Poly[[aqua(1-naphthylacetato)cadmium(II)]-μ3-pyridin-3-olato]
aSchool of Environmental Science and Engineering, Dong Hua University, Shanghai 200051, People's Republic of China
*Correspondence e-mail: xidanli601@yahoo.com.cn
In the title complex, [Cd(C5H4NO)(C12H9O2)(H2O)]n, each CdII atom is coordinated by two carboxylate O atoms from one 1-naphthylacetate ligand, two hydroxyl O atoms from two pyridin-3-olate ligands, one N atom from another pyridin-3-olate ligand and one water molecule, and displays a distorted octahedral coordination geometry. The compound forms infinite chains of pyridin-3-olate ligands bridging 1-naphthylacetate–CdII units parallel to the b axis, with a Cd⋯Cd separation of 3.578 (2) Å. The chains are further self-assembled into a supramolecular network through intermolecular O—H⋯O hydrogen-bonding interactions.
Related literature
Other structures of naphthylacetic acid have been reported by Chen et al. (2004); Duan et al. (2007); Liu et al. (2006); and Tang 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, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: SHELXTL (Bruker, 2004); software used to prepare material for publication: SHELXTL.
Supporting information
https://doi.org/10.1107/S1600536807062332/zl2087sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536807062332/zl2087Isup2.hkl
A mixture of cadmium chloride (1 mmol), 3-hydroxypyridine (1 mmol), 1-naphthylacetic acid (1 mmol), NaOH (1.5 mmol) and H2O (12 ml) was placed in a 23 ml Teflon reactor, which was heated to 433 K for three days and then cooled to room temperature at a rate of 10 K h-1. The crystals obtained were washed with water and dryed in air.
Carbon-bound H atoms were placed at calculated positions and were treated as riding on the parent C atoms with C—H = 0.93–0.97 Å, and with Uiso(H) = 1.2 Ueq(C). Water H atoms were tentatively located in difference Fourier maps and were refined with distance restraints of O–H = 0.82 Å and H···H = 1.29 Å, each within a standard deviation of 0.01 Å with Uiso(H) = 1.5 Ueq(O).
In structural investigations of complexes containing the 1-naphthylacetic acid ligand, it has been found that this molecule can act as a multidentate ligand with a range of versatile binding and coordination modes (Chen et al., 2004; Duan et al., 2007; Liu et al., 2006; Tang et al., 2006). In this paper, we report the
of the a new Cd complex obtained by the reaction of 1-naphthylacetic acid, 3-hydroxypyridine and cadmium chloride in alkaline aqueous solution.As illustrated in Figure 1, each CdII atom, has a distorted octahedral geometry with the six coordinating atoms being two carboxyl O atoms from one 1-naphthylacetate ligands, two hydroxyl O atoms from two pyridin-3-olate ligands, one N atom from another pyridin-3-olate ligand and one water molecule. The pyridin-3-olate ligands connect 1-naphthylacetate-CdII units to form an infinite chain parallel to the b axis with a Cd···Cd separation of 3.578 (2) Å. These chains are further assembled by intermolecular O—H···O hydrogen bonding, with the coordinating water molecules as donors and the carboxyl O atoms as acceptors, thus forming a supramolecular network (Fig. 2).
Other structures of naphthylacetic acid have been reported by Chen et al. (2004); Duan et al. (2007); Liu et al. (2006); and Tang et al. (2006).
Data collection: APEX2 (Bruker, 2004); cell
SAINT (Bruker, 2004); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: SHELXTL (Bruker, 2004); software used to prepare material for publication: SHELXTL.[Cd(C5H4NO)(C12H9O2)(H2O)] | F(000) = 816 |
Mr = 409.70 | Dx = 1.725 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 3600 reflections |
a = 14.978 (2) Å | θ = 1.4–28.0° |
b = 6.7324 (1) Å | µ = 1.40 mm−1 |
c = 15.729 (2) Å | T = 296 K |
β = 95.928 (1)° | Block, colorless |
V = 1577.6 (3) Å3 | 0.26 × 0.23 × 0.20 mm |
Z = 4 |
Bruker APEXII area-detector diffractometer | 3617 independent reflections |
Radiation source: fine-focus sealed tube | 3172 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.023 |
φ and ω scan | θmax = 27.5°, θmin = 2.6° |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | h = −19→19 |
Tmin = 0.702, Tmax = 0.757 | k = −8→8 |
16642 measured reflections | l = −20→19 |
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)] = 0.026 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.066 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.05 | w = 1/[σ2(Fo2) + (0.0338P)2 + 0.9831P] where P = (Fo2 + 2Fc2)/3 |
3617 reflections | (Δ/σ)max = 0.001 |
214 parameters | Δρmax = 1.25 e Å−3 |
0 restraints | Δρmin = −0.38 e Å−3 |
[Cd(C5H4NO)(C12H9O2)(H2O)] | V = 1577.6 (3) Å3 |
Mr = 409.70 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 14.978 (2) Å | µ = 1.40 mm−1 |
b = 6.7324 (1) Å | T = 296 K |
c = 15.729 (2) Å | 0.26 × 0.23 × 0.20 mm |
β = 95.928 (1)° |
Bruker APEXII area-detector diffractometer | 3617 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | 3172 reflections with I > 2σ(I) |
Tmin = 0.702, Tmax = 0.757 | Rint = 0.023 |
16642 measured reflections |
R[F2 > 2σ(F2)] = 0.026 | 0 restraints |
wR(F2) = 0.066 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.05 | Δρmax = 1.25 e Å−3 |
3617 reflections | Δρmin = −0.38 e Å−3 |
214 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 | 0.34909 (17) | 0.9822 (4) | 0.28171 (15) | 0.0352 (5) | |
C2 | 0.26353 (19) | 0.9927 (5) | 0.22167 (19) | 0.0473 (7) | |
H2A | 0.2339 | 1.1180 | 0.2305 | 0.057* | |
H2B | 0.2789 | 0.9909 | 0.1632 | 0.057* | |
C3 | 0.19905 (18) | 0.8260 (4) | 0.23315 (17) | 0.0443 (6) | |
C4 | 0.1889 (2) | 0.6728 (6) | 0.1757 (2) | 0.0636 (9) | |
H4 | 0.2194 | 0.6762 | 0.1272 | 0.076* | |
C5 | 0.1329 (3) | 0.5102 (7) | 0.1888 (3) | 0.0839 (13) | |
H5 | 0.1263 | 0.4091 | 0.1484 | 0.101* | |
C6 | 0.0885 (3) | 0.4986 (7) | 0.2594 (3) | 0.0826 (13) | |
H6 | 0.0526 | 0.3890 | 0.2677 | 0.099* | |
C7 | 0.0967 (2) | 0.6536 (6) | 0.3206 (2) | 0.0606 (9) | |
C8 | 0.0526 (2) | 0.6468 (8) | 0.3968 (3) | 0.0859 (15) | |
H8 | 0.0160 | 0.5394 | 0.4069 | 0.103* | |
C9 | 0.0640 (3) | 0.7988 (9) | 0.4553 (3) | 0.0905 (15) | |
H9 | 0.0370 | 0.7910 | 0.5058 | 0.109* | |
C10 | 0.1148 (3) | 0.9617 (8) | 0.4398 (3) | 0.0819 (13) | |
H10 | 0.1197 | 1.0653 | 0.4791 | 0.098* | |
C11 | 0.1578 (2) | 0.9751 (6) | 0.3689 (2) | 0.0574 (8) | |
H11 | 0.1923 | 1.0868 | 0.3602 | 0.069* | |
C12 | 0.15083 (17) | 0.8184 (5) | 0.30670 (18) | 0.0453 (7) | |
C13 | 0.39701 (15) | 0.6800 (3) | 0.52212 (14) | 0.0283 (5) | |
C14 | 0.31557 (17) | 0.6297 (4) | 0.47649 (16) | 0.0375 (6) | |
H14 | 0.2826 | 0.7252 | 0.4441 | 0.045* | |
C15 | 0.28404 (19) | 0.4379 (4) | 0.47949 (19) | 0.0443 (7) | |
H15 | 0.2294 | 0.4039 | 0.4496 | 0.053* | |
C16 | 0.33343 (17) | 0.2974 (4) | 0.52667 (17) | 0.0390 (6) | |
H16 | 0.3123 | 0.1675 | 0.5272 | 0.047* | |
C17 | 0.44164 (16) | 0.5292 (3) | 0.57099 (15) | 0.0294 (5) | |
H17 | 0.4948 | 0.5605 | 0.6042 | 0.035* | |
Cd1 | 0.501556 (11) | 0.93285 (2) | 0.390115 (10) | 0.03064 (7) | |
H1W | 0.608 (2) | 1.071 (5) | 0.266 (2) | 0.046* | |
H2W | 0.606 (2) | 0.888 (5) | 0.259 (2) | 0.046* | |
N1 | 0.41152 (13) | 0.3429 (3) | 0.57215 (13) | 0.0322 (4) | |
O1 | 0.38196 (12) | 0.8145 (3) | 0.30183 (11) | 0.0405 (4) | |
O2 | 0.38678 (13) | 1.1377 (3) | 0.31050 (12) | 0.0461 (5) | |
O3 | 0.43274 (12) | 0.8600 (2) | 0.51500 (10) | 0.0336 (4) | |
O1W | 0.59985 (17) | 0.9759 (3) | 0.28914 (15) | 0.0538 (6) |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0388 (13) | 0.0376 (14) | 0.0295 (12) | −0.0037 (11) | 0.0055 (10) | 0.0013 (10) |
C2 | 0.0433 (16) | 0.0557 (17) | 0.0421 (15) | −0.0011 (14) | 0.0006 (12) | 0.0119 (13) |
C3 | 0.0384 (14) | 0.0509 (17) | 0.0413 (14) | 0.0002 (12) | −0.0062 (11) | 0.0040 (13) |
C4 | 0.059 (2) | 0.074 (2) | 0.0542 (19) | −0.0033 (18) | −0.0098 (15) | −0.0115 (18) |
C5 | 0.084 (3) | 0.067 (3) | 0.091 (3) | −0.006 (2) | −0.034 (2) | −0.020 (2) |
C6 | 0.058 (2) | 0.069 (3) | 0.113 (4) | −0.020 (2) | −0.028 (2) | 0.024 (3) |
C7 | 0.0343 (15) | 0.066 (2) | 0.078 (2) | 0.0005 (15) | −0.0060 (14) | 0.0297 (19) |
C8 | 0.046 (2) | 0.098 (3) | 0.114 (4) | 0.005 (2) | 0.010 (2) | 0.061 (3) |
C9 | 0.070 (3) | 0.120 (4) | 0.086 (3) | 0.035 (3) | 0.029 (2) | 0.033 (3) |
C10 | 0.076 (3) | 0.107 (4) | 0.066 (2) | 0.041 (3) | 0.023 (2) | 0.007 (2) |
C11 | 0.0521 (18) | 0.066 (2) | 0.0543 (18) | 0.0172 (16) | 0.0045 (14) | 0.0037 (16) |
C12 | 0.0305 (13) | 0.0558 (18) | 0.0483 (15) | 0.0071 (12) | −0.0029 (11) | 0.0138 (14) |
C13 | 0.0357 (12) | 0.0211 (11) | 0.0292 (11) | 0.0019 (9) | 0.0077 (9) | −0.0005 (9) |
C14 | 0.0401 (14) | 0.0289 (12) | 0.0424 (14) | 0.0044 (11) | −0.0017 (11) | 0.0044 (11) |
C15 | 0.0377 (14) | 0.0361 (15) | 0.0565 (17) | −0.0050 (11) | −0.0071 (12) | 0.0001 (12) |
C16 | 0.0413 (14) | 0.0245 (12) | 0.0507 (15) | −0.0028 (11) | 0.0024 (11) | −0.0003 (11) |
C17 | 0.0320 (12) | 0.0282 (12) | 0.0279 (11) | 0.0010 (9) | 0.0024 (9) | −0.0002 (9) |
Cd1 | 0.03952 (11) | 0.02275 (10) | 0.02918 (10) | 0.00089 (7) | 0.00128 (7) | 0.00151 (7) |
N1 | 0.0343 (10) | 0.0251 (10) | 0.0377 (11) | 0.0015 (8) | 0.0070 (8) | 0.0028 (8) |
O1 | 0.0458 (10) | 0.0308 (10) | 0.0429 (10) | −0.0008 (8) | −0.0043 (8) | −0.0026 (8) |
O2 | 0.0555 (12) | 0.0311 (10) | 0.0503 (11) | −0.0001 (9) | −0.0017 (9) | 0.0001 (9) |
O3 | 0.0463 (10) | 0.0218 (8) | 0.0331 (8) | −0.0039 (7) | 0.0058 (7) | 0.0011 (7) |
O1W | 0.0822 (16) | 0.0294 (11) | 0.0547 (14) | −0.0012 (11) | 0.0306 (12) | 0.0036 (9) |
C1—O2 | 1.252 (3) | C11—H11 | 0.9300 |
C1—O1 | 1.259 (3) | C13—O3 | 1.334 (3) |
C1—C2 | 1.513 (4) | C13—C14 | 1.392 (3) |
C2—C3 | 1.504 (4) | C13—C17 | 1.401 (3) |
C2—H2A | 0.9700 | C14—C15 | 1.377 (4) |
C2—H2B | 0.9700 | C14—H14 | 0.9300 |
C3—C4 | 1.369 (4) | C15—C16 | 1.371 (4) |
C3—C12 | 1.427 (4) | C15—H15 | 0.9300 |
C4—C5 | 1.406 (6) | C16—N1 | 1.342 (3) |
C4—H4 | 0.9300 | C16—H16 | 0.9300 |
C5—C6 | 1.355 (6) | C17—N1 | 1.334 (3) |
C5—H5 | 0.9300 | C17—H17 | 0.9300 |
C6—C7 | 1.416 (6) | Cd1—O3i | 2.1992 (17) |
C6—H6 | 0.9300 | Cd1—O1 | 2.2931 (17) |
C7—C12 | 1.405 (4) | Cd1—O1W | 2.293 (2) |
C7—C8 | 1.428 (6) | Cd1—N1ii | 2.310 (2) |
C8—C9 | 1.375 (7) | Cd1—O3 | 2.3620 (16) |
C8—H8 | 0.9300 | Cd1—O2 | 2.4455 (19) |
C9—C10 | 1.371 (7) | N1—Cd1ii | 2.310 (2) |
C9—H9 | 0.9300 | O3—Cd1i | 2.1992 (17) |
C10—C11 | 1.347 (5) | O1W—H1W | 0.75 (3) |
C10—H10 | 0.9300 | O1W—H2W | 0.77 (3) |
C11—C12 | 1.435 (5) | ||
O2—C1—O1 | 120.6 (2) | O3—C13—C17 | 122.1 (2) |
O2—C1—C2 | 120.5 (3) | C14—C13—C17 | 116.7 (2) |
O1—C1—C2 | 118.9 (2) | C15—C14—C13 | 119.7 (2) |
C3—C2—C1 | 113.8 (2) | C15—C14—H14 | 120.1 |
C3—C2—H2A | 108.8 | C13—C14—H14 | 120.1 |
C1—C2—H2A | 108.8 | C16—C15—C14 | 119.9 (2) |
C3—C2—H2B | 108.8 | C16—C15—H15 | 120.1 |
C1—C2—H2B | 108.8 | C14—C15—H15 | 120.1 |
H2A—C2—H2B | 107.7 | N1—C16—C15 | 121.5 (2) |
C4—C3—C12 | 118.5 (3) | N1—C16—H16 | 119.2 |
C4—C3—C2 | 120.8 (3) | C15—C16—H16 | 119.2 |
C12—C3—C2 | 120.6 (3) | N1—C17—C13 | 123.1 (2) |
C3—C4—C5 | 121.2 (4) | N1—C17—H17 | 118.4 |
C3—C4—H4 | 119.4 | C13—C17—H17 | 118.4 |
C5—C4—H4 | 119.4 | O3i—Cd1—O1 | 153.91 (7) |
C6—C5—C4 | 121.0 (4) | O3i—Cd1—O1W | 96.64 (8) |
C6—C5—H5 | 119.5 | O1—Cd1—O1W | 98.15 (8) |
C4—C5—H5 | 119.5 | O3i—Cd1—N1ii | 97.72 (7) |
C5—C6—C7 | 119.9 (4) | O1—Cd1—N1ii | 105.11 (7) |
C5—C6—H6 | 120.0 | O1W—Cd1—N1ii | 83.93 (8) |
C7—C6—H6 | 120.0 | O3i—Cd1—O3 | 76.72 (7) |
C12—C7—C6 | 119.1 (3) | O1—Cd1—O3 | 92.91 (6) |
C12—C7—C8 | 118.8 (4) | O1W—Cd1—O3 | 165.66 (8) |
C6—C7—C8 | 122.1 (4) | N1ii—Cd1—O3 | 84.39 (6) |
C9—C8—C7 | 120.1 (4) | O3i—Cd1—O2 | 103.39 (7) |
C9—C8—H8 | 120.0 | O1—Cd1—O2 | 54.69 (6) |
C7—C8—H8 | 120.0 | O1W—Cd1—O2 | 92.40 (8) |
C10—C9—C8 | 120.7 (4) | N1ii—Cd1—O2 | 158.86 (7) |
C10—C9—H9 | 119.7 | O3—Cd1—O2 | 101.47 (6) |
C8—C9—H9 | 119.7 | C17—N1—C16 | 119.0 (2) |
C11—C10—C9 | 121.5 (5) | C17—N1—Cd1ii | 125.24 (16) |
C11—C10—H10 | 119.3 | C16—N1—Cd1ii | 112.99 (16) |
C9—C10—H10 | 119.3 | C1—O1—Cd1 | 95.81 (15) |
C10—C11—C12 | 120.5 (4) | C1—O2—Cd1 | 88.89 (16) |
C10—C11—H11 | 119.8 | C13—O3—Cd1i | 132.39 (14) |
C12—C11—H11 | 119.8 | C13—O3—Cd1 | 118.14 (14) |
C7—C12—C3 | 120.2 (3) | Cd1i—O3—Cd1 | 103.28 (7) |
C7—C12—C11 | 118.5 (3) | Cd1—O1W—H1W | 126 (3) |
C3—C12—C11 | 121.3 (3) | Cd1—O1W—H2W | 117 (2) |
O3—C13—C14 | 121.0 (2) | H1W—O1W—H2W | 109 (3) |
Symmetry codes: (i) −x+1, −y+2, −z+1; (ii) −x+1, −y+1, −z+1. |
D—H···A | D—H | H···A | D···A | D—H···A |
O1W—H1W···O1iii | 0.75 (3) | 1.97 (3) | 2.720 (3) | 174 (4) |
O1W—H2W···O2iv | 0.77 (3) | 2.02 (3) | 2.783 (3) | 173 (3) |
Symmetry codes: (iii) −x+1, y+1/2, −z+1/2; (iv) −x+1, y−1/2, −z+1/2. |
Experimental details
Crystal data | |
Chemical formula | [Cd(C5H4NO)(C12H9O2)(H2O)] |
Mr | 409.70 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 296 |
a, b, c (Å) | 14.978 (2), 6.7324 (1), 15.729 (2) |
β (°) | 95.928 (1) |
V (Å3) | 1577.6 (3) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 1.40 |
Crystal size (mm) | 0.26 × 0.23 × 0.20 |
Data collection | |
Diffractometer | Bruker APEXII area-detector diffractometer |
Absorption correction | Multi-scan (SADABS; Sheldrick, 1996) |
Tmin, Tmax | 0.702, 0.757 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 16642, 3617, 3172 |
Rint | 0.023 |
(sin θ/λ)max (Å−1) | 0.650 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.026, 0.066, 1.05 |
No. of reflections | 3617 |
No. of parameters | 214 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 1.25, −0.38 |
Computer programs: APEX2 (Bruker, 2004), SAINT (Bruker, 2004), SAINT, SHELXS97 (Sheldrick, 1997), SHELXL97 (Sheldrick, 1997), SHELXTL (Bruker, 2004), SHELXTL.
D—H···A | D—H | H···A | D···A | D—H···A |
O1W—H1W···O1i | 0.75 (3) | 1.97 (3) | 2.720 (3) | 174 (4) |
O1W—H2W···O2ii | 0.77 (3) | 2.02 (3) | 2.783 (3) | 173 (3) |
Symmetry codes: (i) −x+1, y+1/2, −z+1/2; (ii) −x+1, y−1/2, −z+1/2. |
Acknowledgements
The authors are grateful to Dong Hua University for supporting this work.
References
Bruker (2004). APEX2 (Version 7.23A), SAINT (Version 7.23A) and SHELXTL (Version 6.10). Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Chen, L.-F., Zhang, J., Song, L.-J., Wang, W.-G. & Ju, Z.-F. (2004). Acta Cryst. E60, m1032–m1034. Web of Science CSD CrossRef IUCr Journals Google Scholar
Duan, J.-G., Liu, J.-W. & Wu, S. (2007). Acta Cryst. E63, m692–m694. Web of Science CSD CrossRef CAS IUCr Journals Google Scholar
Liu, J.-W., Wang, W.-Y. & Gu, C.-S. (2006). Acta Cryst. E62, m3445–m3447. Web of Science CSD CrossRef IUCr Journals Google Scholar
Sheldrick, G. M. (1996). SADABS. University of Göttingen, Germany. Google Scholar
Sheldrick, G. M. (1997). SHELXL97 and SHELXS97. University of Göttingen, Germany. Google Scholar
Tang, D. X., Feng, L. X. & Zhang, X. Q. (2006). Chin. J. Inorg. Chem. 22, 1891–1894. CAS Google Scholar
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In structural investigations of complexes containing the 1-naphthylacetic acid ligand, it has been found that this molecule can act as a multidentate ligand with a range of versatile binding and coordination modes (Chen et al., 2004; Duan et al., 2007; Liu et al., 2006; Tang et al., 2006). In this paper, we report the crystal structure of the a new Cd complex obtained by the reaction of 1-naphthylacetic acid, 3-hydroxypyridine and cadmium chloride in alkaline aqueous solution.
As illustrated in Figure 1, each CdII atom, has a distorted octahedral geometry with the six coordinating atoms being two carboxyl O atoms from one 1-naphthylacetate ligands, two hydroxyl O atoms from two pyridin-3-olate ligands, one N atom from another pyridin-3-olate ligand and one water molecule. The pyridin-3-olate ligands connect 1-naphthylacetate-CdII units to form an infinite chain parallel to the b axis with a Cd···Cd separation of 3.578 (2) Å. These chains are further assembled by intermolecular O—H···O hydrogen bonding, with the coordinating water molecules as donors and the carboxyl O atoms as acceptors, thus forming a supramolecular network (Fig. 2).