metal-organic compounds
catena-Poly[[bis(4-methylbenzenethiolato)cadium(II)]-μ-1,3-di-4-pyridylpropane]
aFaculty of Materials Science & Chemical Engineering, Ningbo University, Ningbo, Zhejiang 315211, People's Republic of China
*Correspondence e-mail: hanlei@nbu.edu.cn
In the title compound, [Cd(C7H7S)2(C13H14N2)]n, the unique CdII ion, located on a twofold rotation axis, is coordinated by two S atoms and two N atoms in a slightly distorted tetrahedral environment. Symmetry-related CdII ions are linked via bridging 1,3-di-4-pyridylpropane ligands, forming a zig-zag chain-structure parallel to [001]. In the there are weak intrachain π–π stacking interactions between benzene rings, with a centroid–centroid distance of 3.825 (7) Å, and pairs of chains are interdigitated with respect to the 4-methylbenzenethiolate groups.
Related literature
For background information on coordination polymers, see: James (2003); Wang et al. (2005); Cheng et al. (2007); Han & Zhou (2008). For information on the 1,3-bis(4-pyridyl)propane ligand, see: Han et al. (2007); Carlucci et al. (2002). For the synthetic procedure, see: Dance et al. (1987).
Experimental
Crystal data
|
Refinement
|
Data collection: RAPID-AUTO (Rigaku, 1998); cell RAPID-AUTO; data reduction: CrystalStructure (Rigaku/MSC, 2004); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008) and PLATON (Spek, 2009); software used to prepare material for publication: SHELXL97.
Supporting information
10.1107/S1600536809010447/lh2791sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536809010447/lh2791Isup2.hkl
Cd(SC6H4Me-4)2 was synthesized according to the literature (Dance et al., 1987). A mixture of Cd(SC6H4Me-4)2 (99.5 mg) and 1,3-bis(4-pyridyl)propane (50.1 mg) in DMF (6.0 g) solution was stirred for 30 min. The solution was allowed to stand at room temperature for 5 days. Colorless block crystals of the title complex were obtained and collected by filtration with a 30% yield.
The unique H atom on C1 was located in a difference map and refined freely. Other H atoms were positioned geometrically and allowed to ride on their respective parent atoms, with C—H = 0.93 Å and Uiso(H) = 1.2Ueq(C) for phenyl and pyridyl H atoms, C—H = 0.96 Å and Uiso(H) =1.5Ueq(C) for methyl, C—H = 0.97 Å and Uiso(H) = 1.2Ueq(C) for methylene.
Data collection: RAPID-AUTO (Rigaku, 1998); cell
RAPID-AUTO (Rigaku, 1998); data reduction: CrystalStructure (Rigaku/MSC, 2004); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008) and PLATON (Spek, 2009); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008).[Cd(C7H7S)2(C13H14N2)] | F(000) = 1136 |
Mr = 557.03 | Dx = 1.437 Mg m−3 |
Monoclinic, C2/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -C 2yc | Cell parameters from 1774 reflections |
a = 11.922 (2) Å | θ = 3.2–27.5° |
b = 16.792 (3) Å | µ = 1.03 mm−1 |
c = 12.862 (3) Å | T = 298 K |
β = 91.06 (3)° | Block, colorless |
V = 2574.5 (9) Å3 | 0.45 × 0.25 × 0.18 mm |
Z = 4 |
Rigaku R-AXIS RAPID diffractometer | 2948 independent reflections |
Radiation source: fine-focus sealed tube | 2587 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.046 |
Detector resolution: 0 pixels mm-1 | θmax = 27.5°, θmin = 3.2° |
ω scans | h = −15→15 |
Absorption correction: multi-scan (ABSCOR; Higashi, 1995) | k = −21→21 |
Tmin = 0.655, Tmax = 0.837 | l = −16→14 |
12609 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)] = 0.036 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.090 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.09 | w = 1/[σ2(Fo2) + (0.0411P)2 + 2.0003P] where P = (Fo2 + 2Fc2)/3 |
2948 reflections | (Δ/σ)max = 0.001 |
150 parameters | Δρmax = 0.53 e Å−3 |
0 restraints | Δρmin = −0.90 e Å−3 |
[Cd(C7H7S)2(C13H14N2)] | V = 2574.5 (9) Å3 |
Mr = 557.03 | Z = 4 |
Monoclinic, C2/c | Mo Kα radiation |
a = 11.922 (2) Å | µ = 1.03 mm−1 |
b = 16.792 (3) Å | T = 298 K |
c = 12.862 (3) Å | 0.45 × 0.25 × 0.18 mm |
β = 91.06 (3)° |
Rigaku R-AXIS RAPID diffractometer | 2948 independent reflections |
Absorption correction: multi-scan (ABSCOR; Higashi, 1995) | 2587 reflections with I > 2σ(I) |
Tmin = 0.655, Tmax = 0.837 | Rint = 0.046 |
12609 measured reflections |
R[F2 > 2σ(F2)] = 0.036 | 0 restraints |
wR(F2) = 0.090 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.09 | Δρmax = 0.53 e Å−3 |
2948 reflections | Δρmin = −0.90 e Å−3 |
150 parameters |
Geometry. All esds (except the esd in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell esds are taken into account individually in the estimation of esds in distances, angles and torsion angles; correlations between esds in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell esds is used for estimating esds 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 > 2sigma(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 | ||
Cd1 | 0.0000 | 0.295756 (15) | 0.2500 | 0.04791 (11) | |
S1 | 0.18408 (7) | 0.35512 (5) | 0.22501 (8) | 0.0677 (2) | |
N1 | −0.0143 (2) | 0.20104 (12) | 0.11914 (17) | 0.0485 (5) | |
C1 | 0.0000 | 0.1037 (2) | −0.2500 | 0.0464 (8) | |
H1 | 0.065 (2) | 0.1374 (16) | −0.243 (2) | 0.050 (8)* | |
C2 | −0.0111 (3) | 0.05267 (16) | −0.1528 (2) | 0.0579 (7) | |
H2A | −0.0799 | 0.0219 | −0.1579 | 0.070* | |
H2B | 0.0512 | 0.0156 | −0.1485 | 0.070* | |
C3 | −0.0126 (3) | 0.10235 (14) | −0.05565 (19) | 0.0486 (6) | |
C4 | −0.1082 (3) | 0.14257 (19) | −0.0269 (2) | 0.0615 (7) | |
H4A | −0.1741 | 0.1373 | −0.0662 | 0.074* | |
C5 | −0.1060 (3) | 0.19035 (19) | 0.0598 (3) | 0.0607 (8) | |
H5A | −0.1716 | 0.2165 | 0.0779 | 0.073* | |
C6 | 0.0779 (3) | 0.16210 (17) | 0.0914 (2) | 0.0545 (7) | |
H6A | 0.1425 | 0.1682 | 0.1322 | 0.065* | |
C7 | 0.0822 (3) | 0.11328 (16) | 0.0054 (2) | 0.0551 (7) | |
H7A | 0.1488 | 0.0879 | −0.0113 | 0.066* | |
C8 | 0.1615 (2) | 0.45217 (16) | 0.2756 (2) | 0.0511 (6) | |
C9 | 0.1277 (3) | 0.46512 (18) | 0.3764 (2) | 0.0589 (7) | |
H9A | 0.1152 | 0.4218 | 0.4197 | 0.071* | |
C10 | 0.1120 (3) | 0.54131 (18) | 0.4140 (3) | 0.0621 (7) | |
H10A | 0.0898 | 0.5482 | 0.4823 | 0.075* | |
C11 | 0.1812 (3) | 0.51806 (19) | 0.2143 (2) | 0.0643 (8) | |
H11A | 0.2056 | 0.5114 | 0.1467 | 0.077* | |
C12 | 0.1646 (3) | 0.59429 (19) | 0.2530 (3) | 0.0686 (9) | |
H12A | 0.1782 | 0.6379 | 0.2105 | 0.082* | |
C13 | 0.1286 (3) | 0.60699 (18) | 0.3527 (3) | 0.0626 (8) | |
C14 | 0.1075 (4) | 0.6900 (2) | 0.3939 (4) | 0.0969 (14) | |
H14A | 0.0836 | 0.6867 | 0.4646 | 0.145* | |
H14B | 0.0502 | 0.7152 | 0.3522 | 0.145* | |
H14C | 0.1754 | 0.7205 | 0.3909 | 0.145* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Cd1 | 0.05340 (18) | 0.04305 (16) | 0.04712 (17) | 0.000 | −0.00332 (12) | 0.000 |
S1 | 0.0523 (4) | 0.0585 (4) | 0.0927 (6) | −0.0030 (3) | 0.0129 (4) | −0.0238 (4) |
N1 | 0.0573 (14) | 0.0480 (12) | 0.0402 (11) | −0.0044 (10) | −0.0019 (10) | 0.0000 (9) |
C1 | 0.059 (2) | 0.0403 (18) | 0.0402 (18) | 0.000 | −0.0002 (17) | 0.000 |
C2 | 0.089 (2) | 0.0427 (13) | 0.0418 (13) | −0.0028 (14) | −0.0010 (14) | 0.0013 (11) |
C3 | 0.0688 (17) | 0.0394 (12) | 0.0375 (12) | −0.0064 (11) | 0.0005 (12) | 0.0058 (9) |
C4 | 0.0559 (17) | 0.077 (2) | 0.0511 (16) | −0.0052 (14) | −0.0066 (14) | −0.0122 (14) |
C5 | 0.0511 (16) | 0.076 (2) | 0.0546 (17) | −0.0011 (14) | 0.0006 (14) | −0.0139 (14) |
C6 | 0.0584 (16) | 0.0524 (15) | 0.0521 (15) | 0.0013 (13) | −0.0132 (13) | −0.0013 (12) |
C7 | 0.0625 (17) | 0.0493 (14) | 0.0533 (16) | 0.0088 (13) | −0.0032 (14) | 0.0000 (12) |
C8 | 0.0407 (13) | 0.0525 (14) | 0.0600 (16) | −0.0043 (11) | −0.0002 (12) | −0.0093 (12) |
C9 | 0.0627 (18) | 0.0524 (16) | 0.0621 (17) | −0.0018 (13) | 0.0115 (15) | 0.0004 (13) |
C10 | 0.0635 (18) | 0.0632 (18) | 0.0601 (17) | −0.0012 (14) | 0.0091 (15) | −0.0109 (14) |
C11 | 0.069 (2) | 0.0673 (19) | 0.0569 (17) | −0.0094 (15) | 0.0043 (15) | −0.0023 (14) |
C12 | 0.075 (2) | 0.0543 (17) | 0.076 (2) | −0.0070 (15) | 0.0042 (18) | 0.0067 (15) |
C13 | 0.0561 (17) | 0.0512 (16) | 0.080 (2) | −0.0032 (13) | 0.0031 (16) | −0.0113 (14) |
C14 | 0.098 (3) | 0.058 (2) | 0.136 (4) | 0.0021 (19) | 0.023 (3) | −0.020 (2) |
Cd1—N1 | 2.320 (2) | C6—C7 | 1.379 (4) |
Cd1—N1i | 2.320 (2) | C6—H6A | 0.9300 |
Cd1—S1 | 2.4370 (9) | C7—H7A | 0.9300 |
Cd1—S1i | 2.4370 (9) | C8—C11 | 1.381 (4) |
S1—C8 | 1.777 (3) | C8—C9 | 1.383 (4) |
N1—C6 | 1.333 (4) | C9—C10 | 1.381 (4) |
N1—C5 | 1.334 (4) | C9—H9A | 0.9300 |
C1—C2ii | 1.523 (3) | C10—C13 | 1.372 (4) |
C1—C2 | 1.523 (3) | C10—H10A | 0.9300 |
C1—H1 | 0.97 (3) | C11—C12 | 1.389 (4) |
C2—C3 | 1.503 (4) | C11—H11A | 0.9300 |
C2—H2A | 0.9700 | C12—C13 | 1.376 (5) |
C2—H2B | 0.9700 | C12—H12A | 0.9300 |
C3—C7 | 1.377 (4) | C13—C14 | 1.513 (4) |
C3—C4 | 1.381 (4) | C14—H14A | 0.9600 |
C4—C5 | 1.373 (4) | C14—H14B | 0.9600 |
C4—H4A | 0.9300 | C14—H14C | 0.9600 |
C5—H5A | 0.9300 | ||
N1—Cd1—N1i | 93.43 (11) | N1—C6—H6A | 118.3 |
N1—Cd1—S1 | 103.83 (7) | C7—C6—H6A | 118.3 |
N1i—Cd1—S1 | 108.77 (7) | C3—C7—C6 | 119.6 (3) |
N1—Cd1—S1i | 108.77 (7) | C3—C7—H7A | 120.2 |
N1i—Cd1—S1i | 103.83 (7) | C6—C7—H7A | 120.2 |
S1—Cd1—S1i | 131.71 (4) | C11—C8—C9 | 117.7 (3) |
C8—S1—Cd1 | 100.62 (9) | C11—C8—S1 | 119.9 (2) |
C6—N1—C5 | 116.9 (2) | C9—C8—S1 | 122.4 (2) |
C6—N1—Cd1 | 118.72 (19) | C10—C9—C8 | 121.1 (3) |
C5—N1—Cd1 | 123.8 (2) | C10—C9—H9A | 119.4 |
C2ii—C1—C2 | 111.6 (3) | C8—C9—H9A | 119.4 |
C2ii—C1—H1 | 109.0 (17) | C13—C10—C9 | 121.5 (3) |
C2—C1—H1 | 109.5 (16) | C13—C10—H10A | 119.3 |
C3—C2—C1 | 111.9 (2) | C9—C10—H10A | 119.3 |
C3—C2—H2A | 109.2 | C8—C11—C12 | 120.5 (3) |
C1—C2—H2A | 109.2 | C8—C11—H11A | 119.8 |
C3—C2—H2B | 109.2 | C12—C11—H11A | 119.8 |
C1—C2—H2B | 109.2 | C13—C12—C11 | 121.7 (3) |
H2A—C2—H2B | 107.9 | C13—C12—H12A | 119.1 |
C7—C3—C4 | 117.1 (2) | C11—C12—H12A | 119.1 |
C7—C3—C2 | 121.7 (3) | C10—C13—C12 | 117.5 (3) |
C4—C3—C2 | 121.1 (3) | C10—C13—C14 | 120.9 (3) |
C5—C4—C3 | 120.0 (3) | C12—C13—C14 | 121.7 (3) |
C5—C4—H4A | 120.0 | C13—C14—H14A | 109.5 |
C3—C4—H4A | 120.0 | C13—C14—H14B | 109.5 |
N1—C5—C4 | 123.1 (3) | H14A—C14—H14B | 109.5 |
N1—C5—H5A | 118.5 | C13—C14—H14C | 109.5 |
C4—C5—H5A | 118.5 | H14A—C14—H14C | 109.5 |
N1—C6—C7 | 123.3 (3) | H14B—C14—H14C | 109.5 |
Symmetry codes: (i) −x, y, −z+1/2; (ii) −x, y, −z−1/2. |
Experimental details
Crystal data | |
Chemical formula | [Cd(C7H7S)2(C13H14N2)] |
Mr | 557.03 |
Crystal system, space group | Monoclinic, C2/c |
Temperature (K) | 298 |
a, b, c (Å) | 11.922 (2), 16.792 (3), 12.862 (3) |
β (°) | 91.06 (3) |
V (Å3) | 2574.5 (9) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 1.03 |
Crystal size (mm) | 0.45 × 0.25 × 0.18 |
Data collection | |
Diffractometer | Rigaku R-AXIS RAPID diffractometer |
Absorption correction | Multi-scan (ABSCOR; Higashi, 1995) |
Tmin, Tmax | 0.655, 0.837 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 12609, 2948, 2587 |
Rint | 0.046 |
(sin θ/λ)max (Å−1) | 0.649 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.036, 0.090, 1.09 |
No. of reflections | 2948 |
No. of parameters | 150 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.53, −0.90 |
Computer programs: RAPID-AUTO (Rigaku, 1998), CrystalStructure (Rigaku/MSC, 2004), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008) and PLATON (Spek, 2009).
Cd1—N1 | 2.320 (2) | Cd1—S1 | 2.4370 (9) |
N1—Cd1—N1i | 93.43 (11) | N1i—Cd1—S1 | 108.77 (7) |
N1—Cd1—S1 | 103.83 (7) | S1—Cd1—S1i | 131.71 (4) |
Symmetry code: (i) −x, y, −z+1/2. |
Acknowledgements
This work was supported by the Natural Science Foundation of Zhejiang Province (Y4080435), the Natural Science Foundation of Ningbo Municipal (2007A610024) and the K.C. Wong Magna Fund of Ningbo University.
References
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The search for new crystalline coordination polymers is fueled by the use of such materials in catalysis, separations, magnetism, and optoelectronics (James, 2003). Recently, interest has been devoted to the entanglement of 1D coordination polymers resulting in the architectures of an overall higher dimensionality (Wang et al., 2005; Cheng et al., 2007). The organic ligand, 1,3-bis(4-pyridyl)propane (bpp), is a long and flexible multi-functional linker, which can adopt different conformations with respect to the relative orientations of the CH2 groups (Han et al., 2007; Carlucci et al., 2002). We have reported a 2-D interwoven network entangled from zigzag chains using the bpp ligand as building unit (Han & Zhou, 2008). In an attempt to synthesize further interwoven networks we have synthesized the one-dimensional polymer formed from Cd(SC6H4Me-4)2 and bpp and its crystal structure is reported herein.
The title compound, [Cd(SC6H4Me-4)2(bpp)]n, is a one-dimensional chain structure and the asymmetric unit is shown in Fig. 1. The unique CdII ion is coordinated by two S atoms and two N atoms adopting a slightly distorted tetrahedral coordination geometry. In the chain structure, there are weak π···π stacking interactions between two symmetry related benzene rings of the 4-methylbenzenethiolate groups, within the same chain. The centroid-to-centroid distance (Cg···Cgi) is 3.825 (7) Å (symmetry code: (i) -x, y, -z+1/2). The dihedral angle between two benzene rings is 3.2 (7)° (Fig. 2). Figure 3 shows part of the crystal structure of the title compound illustrating two interdigitated 1-D chains.