supplementary materials


tk2252 scheme

Acta Cryst. (2008). E64, m588    [ doi:10.1107/S1600536808007770 ]

catena-Poly[[diaquacadmium(II)]bis([mu]-pyridine-3-sulfonato)-[kappa]2N:O;[kappa]2O:N]

Z.-H. Qiu, F.-P. Liang, Q.-F. Ruan and S.-R. Zhao

Abstract top

In the title polymeric complex, [Cd(C5H4NO3S)2(H2O)2]n, the Cd atom is located on a centre of inversion and is coordinated by two O atoms and two N atoms, derived from four different pyridine-3-sulfonate ligands, and two O atoms derived from two water molecules, forming a distorted trans-N2O4 octahedral geometry. The topology of the polymer is a one-dimensional chain mediated by bridging pyridine-3-sulfonate anions. These are connected into a three-dimensional architecture via hydrogen bonds.

Comment top

Complexes or salts based on pyridinesulfonate are very rare in the Cambridge Structural Database (CSD; Version 5.25; Allen, 2002). A six-coordinate complex with pyridine-3-sulfonate ligands that is closely related to the title complex, (I), has been reported (Walsh & Hathaway, 1980). Other pyridine-3-sulfonate complexes are also available (Brodersen et al., 1980; Cotton et al., 1992a, b; Mäkinen et al., 2001; van der Lee & Barboiu, 2004), as well as that of the acid (Chandrasekhar, 1977).

In (I), Fig. 1, the Cd atom is located on a centre of inversion and is six-coordinated by two N atoms and two O atoms derived from four different pyridine-3-sulfonate molecules, and two O atoms derived from two water molecules. The resulting trans-N2O4 donor sets defines a distorted octahedral environment for Cd with angles ranging from 84.76 (7) to 180°, Cd—O distances in the range 2.2872 (18) to 2.3113 (17) Å, and Cd—N distances of 2.3233 (18) and 2.3234 (18) Å.

The molecules aggregate via bridging pyridine-3-sulfonate anions to form a chain. In the crystal structure, chains are linked into a 3-D architecture via hydrogen bonding interactions, Table 1 & Fig. 2.

Related literature top

For related literature, see: Allen (2002). For related structures, see: Brodersen et al. (1980); Chandrasekhar (1977); Cotton et al. (1992a,b); van der Lee & Barboiu (2004); Mäkinen et al. (2001); Walsh & Hathaway (1980).

Experimental top

Pyridine-3-sulfonate, (1 mmol, 159 mg) was dissolved in methanol (A.R., 99.9%) (10 ml). To the resulting clear solution was added CdCl2.6H2O (0.5 mmol, 149 mg) in methanol (10 ml). After keeping the resulting mixture in air to evaporate about half of the solvent, colourless blocks of (I) were deposited. The crystals were isolated, washed with ethanol three times (Yield 74%). Analysis: found: C, 25.98; H, 2.66; N, 6.08; S, 13.84; C10H12CdN2O8S2 requires: C, 25.82; H, 2.58; N, 6.02; S, 14.27.

Refinement top

The C-bound H atoms were included in the riding model approximation with C—H = 0.93–0.96 Å, and with Uiso(H)= 1.2Ueq(C)-1.5Ueq(C). The water-bound H atoms were located in difference Fourier maps and the O—H distances were refined without constraint, see Table 1 for distances.

Computing details top

Data collection: SMART (Bruker, 1998); cell refinement: SAINT (Bruker, 1998); data reduction: SAINT (Bruker, 1998); 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).

Figures top
[Figure 1] Fig. 1. Extended structure in (I) showing the coordination geometry for the Cd atom, the atom labelling scheme and displacement ellipsoids at the 50% probability level. The Cd atom is located at a center of inversion.
[Figure 2] Fig. 2. Crystal packing of (I) viewed approximately down the a-direction showing the hydrogen bonding interactions as dashed lines.
catena-Poly[[diaquacadmium(II)]bis(µ-pyridine-3-sulfonato)- κ2N:O;κ2O:N] top
Crystal data top
[Cd(C5H4NO3S)2(H2O)2]F000 = 460
Mr = 464.74Dx = 2.065 Mg m3
Monoclinic, P21/cMo Kα radiation
λ = 0.71073 Å
Hall symbol: -P 2ybcCell parameters from 3022 reflections
a = 7.7480 (11) Åθ = 3.1–26.3º
b = 13.264 (2) ŵ = 1.78 mm1
c = 7.3291 (11) ÅT = 294 (2) K
β = 97.081 (2)ºBlock, colourless
V = 747.47 (19) Å30.26 × 0.22 × 0.18 mm
Z = 2
Data collection top
Bruker SMART CCD area-detector
diffractometer
1520 independent reflections
Radiation source: fine-focus sealed tube1396 reflections with I > 2σ(I)
Monochromator: graphiteRint = 0.023
T = 298(2) Kθmax = 26.3º
φ and ο scansθmin = 2.7º
Absorption correction: multi-scan
(SADABS; Bruker, 1998)
h = 9→6
Tmin = 0.674, Tmax = 0.740k = 16→15
4111 measured reflectionsl = 4→9
Refinement top
Refinement on F2Hydrogen site location: inferred from neighbouring sites
Least-squares matrix: fullH atoms treated by a mixture of
independent and constrained refinement
R[F2 > 2σ(F2)] = 0.021  w = 1/[σ2(Fo2) + (0.0952P)2 + 1.5031P]
where P = (Fo2 + 2Fc2)/3
wR(F2) = 0.053(Δ/σ)max = 0.001
S = 1.10Δρmax = 0.42 e Å3
1520 reflectionsΔρmin = 0.73 e Å3
115 parametersExtinction correction: SHELXL, Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4
Primary atom site location: structure-invariant direct methodsExtinction coefficient: 0.087 (3)
Secondary atom site location: difference Fourier map
Crystal data top
[Cd(C5H4NO3S)2(H2O)2]V = 747.47 (19) Å3
Mr = 464.74Z = 2
Monoclinic, P21/cMo Kα
a = 7.7480 (11) ŵ = 1.78 mm1
b = 13.264 (2) ÅT = 294 (2) K
c = 7.3291 (11) Å0.26 × 0.22 × 0.18 mm
β = 97.081 (2)º
Data collection top
Bruker SMART CCD area-detector
diffractometer
1520 independent reflections
Absorption correction: multi-scan
(SADABS; Bruker, 1998)
1396 reflections with I > 2σ(I)
Tmin = 0.674, Tmax = 0.740Rint = 0.023
4111 measured reflections
Refinement top
R[F2 > 2σ(F2)] = 0.021115 parameters
wR(F2) = 0.053H atoms treated by a mixture of
independent and constrained refinement
S = 1.10Δρmax = 0.42 e Å3
1520 reflectionsΔρmin = 0.73 e Å3
Special details top

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.

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2) top
xyzUiso*/Ueq
Cd10.00000.50000.50000.02008 (12)
S10.71583 (7)0.62259 (4)0.77922 (8)0.02183 (15)
N10.2044 (2)0.62074 (14)0.6090 (3)0.0246 (4)
O10.7687 (2)0.57880 (16)0.6122 (3)0.0449 (5)
O20.7069 (2)0.54880 (14)0.9231 (3)0.0392 (5)
O30.8146 (2)0.71095 (13)0.8402 (3)0.0377 (4)
C10.3697 (3)0.59388 (16)0.6647 (3)0.0234 (5)
H10.39790.52570.67220.028*
C20.4994 (3)0.66450 (17)0.7113 (3)0.0202 (4)
C30.4585 (3)0.76576 (17)0.7005 (4)0.0276 (5)
H30.54390.81430.73000.033*
C40.2885 (3)0.79362 (18)0.6450 (4)0.0317 (5)
H40.25720.86130.63800.038*
C50.1657 (3)0.71933 (18)0.6000 (3)0.0268 (5)
H50.05140.73850.56190.032*
O40.0841 (3)0.40325 (16)0.7537 (3)0.0359 (4)
H4A0.140 (4)0.426 (2)0.845 (5)0.046 (10)*
H4B0.113 (4)0.348 (3)0.733 (5)0.043 (9)*
Atomic displacement parameters (Å2) top
U11U22U33U12U13U23
Cd10.01370 (15)0.02211 (16)0.02355 (16)0.00007 (8)0.00117 (9)0.00150 (8)
S10.0152 (3)0.0238 (3)0.0254 (3)0.0008 (2)0.0021 (2)0.0035 (2)
N10.0181 (9)0.0241 (9)0.0305 (10)0.0004 (8)0.0018 (8)0.0032 (8)
O10.0238 (9)0.0694 (14)0.0411 (11)0.0142 (9)0.0027 (8)0.0210 (10)
O20.0327 (10)0.0345 (10)0.0475 (12)0.0032 (8)0.0070 (8)0.0145 (9)
O30.0270 (9)0.0304 (9)0.0518 (11)0.0079 (7)0.0107 (8)0.0012 (9)
C10.0191 (11)0.0197 (10)0.0301 (12)0.0014 (8)0.0016 (9)0.0018 (9)
C20.0173 (10)0.0245 (11)0.0189 (10)0.0005 (8)0.0022 (8)0.0020 (8)
C30.0231 (11)0.0207 (11)0.0391 (13)0.0044 (9)0.0049 (10)0.0049 (10)
C40.0297 (13)0.0211 (11)0.0444 (15)0.0042 (10)0.0047 (11)0.0008 (10)
C50.0187 (11)0.0296 (12)0.0313 (12)0.0056 (9)0.0001 (9)0.0007 (10)
O40.0454 (11)0.0315 (10)0.0280 (10)0.0043 (9)0.0059 (8)0.0025 (8)
Geometric parameters (Å, °) top
Cd1—O4i2.2872 (18)O1—Cd1iv2.3113 (17)
Cd1—O42.2873 (18)C1—C21.386 (3)
Cd1—O1ii2.3113 (17)C1—H10.9300
Cd1—O1iii2.3113 (17)C2—C31.380 (3)
Cd1—N1i2.3233 (18)C3—C41.380 (4)
Cd1—N12.3234 (18)C3—H30.9300
S1—O31.4404 (18)C4—C51.382 (3)
S1—O21.4466 (19)C4—H40.9300
S1—O11.4587 (19)C5—H50.9300
S1—C21.779 (2)O4—H4A0.81 (3)
N1—C51.341 (3)O4—H4B0.79 (3)
N1—C11.344 (3)
O4i—Cd1—O4180C5—N1—Cd1121.09 (15)
O4i—Cd1—O1ii83.10 (8)C1—N1—Cd1120.36 (15)
O4—Cd1—O1ii96.90 (8)S1—O1—Cd1iv142.09 (12)
O4i—Cd1—O1iii96.90 (8)N1—C1—C2122.1 (2)
O4—Cd1—O1iii83.10 (8)N1—C1—H1119.0
O1ii—Cd1—O1iii180C2—C1—H1119.0
O4i—Cd1—N1i89.62 (7)C3—C2—C1119.3 (2)
O4—Cd1—N1i90.38 (7)C3—C2—S1121.48 (17)
O1ii—Cd1—N1i84.76 (7)C1—C2—S1119.21 (17)
O1iii—Cd1—N1i95.24 (7)C4—C3—C2118.8 (2)
O4i—Cd1—N190.37 (7)C4—C3—H3120.6
O4—Cd1—N189.63 (7)C2—C3—H3120.6
O1ii—Cd1—N195.24 (7)C3—C4—C5118.9 (2)
O1iii—Cd1—N184.76 (7)C3—C4—H4120.5
N1i—Cd1—N1180C5—C4—H4120.5
O3—S1—O2113.30 (12)N1—C5—C4122.7 (2)
O3—S1—O1113.01 (13)N1—C5—H5118.6
O2—S1—O1112.70 (13)C4—C5—H5118.6
O3—S1—C2106.20 (11)Cd1—O4—H4A122 (2)
O2—S1—C2106.70 (11)Cd1—O4—H4B115 (2)
O1—S1—C2104.03 (10)H4A—O4—H4B112 (3)
C5—N1—C1118.18 (19)
O4i—Cd1—N1—C542.65 (19)N1—C1—C2—S1178.71 (18)
O4—Cd1—N1—C5137.35 (19)O3—S1—C2—C38.3 (2)
O1ii—Cd1—N1—C540.45 (19)O2—S1—C2—C3129.5 (2)
O1iii—Cd1—N1—C5139.55 (19)O1—S1—C2—C3111.2 (2)
O4i—Cd1—N1—C1130.30 (18)O3—S1—C2—C1173.02 (19)
O4—Cd1—N1—C149.70 (18)O2—S1—C2—C151.9 (2)
O1ii—Cd1—N1—C1146.60 (18)O1—S1—C2—C167.5 (2)
O1iii—Cd1—N1—C133.40 (18)C1—C2—C3—C40.6 (4)
O3—S1—O1—Cd1iv65.4 (2)S1—C2—C3—C4179.29 (19)
O2—S1—O1—Cd1iv64.7 (2)C2—C3—C4—C50.8 (4)
C2—S1—O1—Cd1iv179.9 (2)C1—N1—C5—C40.2 (4)
C5—N1—C1—C20.4 (3)Cd1—N1—C5—C4172.90 (19)
Cd1—N1—C1—C2172.76 (16)C3—C4—C5—N10.4 (4)
N1—C1—C2—C30.0 (3)
Symmetry codes: (i) −x, −y+1, −z+1; (ii) x−1, y, z; (iii) −x+1, −y+1, −z+1; (iv) x+1, y, z.
Hydrogen-bond geometry (Å, °) top
D—H···AD—HH···AD···AD—H···A
C5—H5···O3v0.932.393.256 (3)155
C4—H4···O2vi0.932.553.422 (3)157
O4—H4B···O3vii0.79 (3)1.99 (4)2.780 (3)176 (3)
O4—H4A···O2viii0.81 (3)1.98 (3)2.773 (3)168 (3)
Symmetry codes: (v) x−1, −y+3/2, z−1/2; (vi) −x+1, y+1/2, −z+3/2; (vii) −x+1, y−1/2, −z+3/2; (viii) −x+1, −y+1, −z+2.
Table 1
Hydrogen-bond geometry (Å, °)
top
D—H···AD—HH···AD···AD—H···A
C5—H5···O3i0.932.393.256 (3)155
C4—H4···O2ii0.932.553.422 (3)157
O4—H4B···O3iii0.79 (3)1.99 (4)2.780 (3)176 (3)
O4—H4A···O2iv0.81 (3)1.98 (3)2.773 (3)168 (3)
Symmetry codes: (i) x−1, −y+3/2, z−1/2; (ii) −x+1, y+1/2, −z+3/2; (iii) −x+1, y−1/2, −z+3/2; (iv) −x+1, −y+1, −z+2.
Acknowledgements top

This work was supported by the Natural Science Foundation of Guangxi (GuiKeJi0639031), People's Republic of China. This research was also sponsored by the Program for Hundred Outstanding Young Teachers in Higher Education Institutions of Guangxi, People's Republic of China.

references
References top

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