| Literature DB >> 21201073 |
Abstract
The title compound, [Pb(2)(C(2)H(3)O(2))(4)(C(8)H(10)O(2))](n), has a polymeric structure, with acetatolead(II) chains and 2,5-dimethyl-benzene-1,4-diol mol-ecules forming bridges between two Pb(II) ions from neighbouring chains. Each Pb(II) centre is surrounded by eight O atoms; four belong to bidentate acetate ions, three to neighbouring bridging acetate groups and one to the 2,5-dimethyl-benzene-1,4-diol mol-ecule. The Pb(II) ions are chelated symmetrically and asymmetrically by acetate ligands. The coordination environment of the Pb(II) ion can be described as a hemidirected Pb(II)O(6) core with the empty space around the metal ion filled by the stereochemically active 6s(2) electron pair and two longer Pb-O contacts. The Pb-O distances are in the range of 2.355 (3)-2.994 (3) Å. Additionally, the crystal structure is stabilized by O-H⋯O hydrogen bonds.Entities:
Year: 2008 PMID: 21201073 PMCID: PMC2959230 DOI: 10.1107/S1600536808030535
Source DB: PubMed Journal: Acta Crystallogr Sect E Struct Rep Online ISSN: 1600-5368
| [Pb2(C2H3O2)4(C8H10O2)] | |
| Triclinic, | |
| Hall symbol: -P 1 | Mo |
| Cell parameters from 9065 reflections | |
| θ = 3.0–28.7° | |
| µ = 16.72 mm−1 | |
| α = 93.043 (11)° | |
| β = 100.787 (12)° | Prismatic, colourless |
| γ = 116.377 (14)° | 0.35 × 0.26 × 0.14 mm |
| Kuma KM-4 four-circle CCD diffractometer | 2432 independent reflections |
| Radiation source: fine-focus sealed tube | 2317 reflections with |
| graphite | |
| Detector resolution: 8.6479 pixels mm-1 | θmax = 28.7°, θmin = 3.1° |
| ω scans | |
| Absorption correction: analytical (CrysAlis RED; Oxford Diffraction, 2005) | |
| 9065 measured reflections |
| Refinement on | Secondary atom site location: difference Fourier map |
| Least-squares matrix: full | Hydrogen site location: inferred from neighbouring sites |
| H-atom parameters constrained | |
| (Δ/σ)max = 0.001 | |
| 2432 reflections | Δρmax = 1.30 e Å−3 |
| 132 parameters | Δρmin = −1.67 e Å−3 |
| 0 restraints | Extinction correction: SHELXL97 (Sheldrick, 2008), Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4 |
| Primary atom site location: structure-invariant direct methods | Extinction coefficient: 0.0077 (5) |
| 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 |
| Pb1 | 0.205617 (17) | 0.362095 (17) | 0.046792 (11) | 0.00910 (6) | |
| O1 | 0.4490 (4) | 0.6463 (4) | −0.0457 (2) | 0.0121 (5) | |
| O2 | 0.1324 (4) | 0.6005 (4) | −0.0858 (3) | 0.0154 (5) | |
| O3 | 0.1663 (4) | 0.2264 (4) | −0.1751 (2) | 0.0148 (5) | |
| O4 | −0.1191 (4) | 0.0447 (4) | −0.1145 (3) | 0.0214 (6) | |
| C1 | 0.3154 (5) | 0.6990 (5) | −0.0954 (3) | 0.0111 (6) | |
| C2 | 0.3723 (6) | 0.8784 (6) | −0.1662 (4) | 0.0155 (7) | |
| H2A | 0.5180 | 0.9365 | −0.1668 | 0.023* | |
| H2B | 0.3466 | 0.9780 | −0.1192 | 0.023* | |
| H2C | 0.2896 | 0.8380 | −0.2589 | 0.023* | |
| C3 | −0.0132 (5) | 0.0788 (6) | −0.1992 (4) | 0.0135 (7) | |
| C4 | −0.0903 (6) | −0.0587 (6) | −0.3316 (4) | 0.0212 (8) | |
| H4A | −0.0509 | −0.1658 | −0.3216 | 0.032* | |
| H4B | −0.0301 | 0.0174 | −0.4002 | 0.032* | |
| H4C | −0.2400 | −0.1172 | −0.3588 | 0.032* | |
| C5 | 0.5070 (5) | 0.5941 (5) | 0.3871 (3) | 0.0124 (7) | |
| O5 | 0.5039 (4) | 0.6836 (4) | 0.2743 (3) | 0.0166 (5) | |
| H5 | 0.6216 | 0.7356 | 0.2591 | 0.025* | |
| C6 | 0.3672 (5) | 0.5861 (6) | 0.4637 (4) | 0.0129 (7) | |
| C7 | 0.3647 (5) | 0.4909 (5) | 0.5766 (3) | 0.0133 (7) | |
| H7 | 0.2720 | 0.4841 | 0.6303 | 0.016* | |
| C8 | 0.2300 (6) | 0.6797 (7) | 0.4230 (4) | 0.0207 (8) | |
| H8A | 0.1526 | 0.6732 | 0.4914 | 0.031* | |
| H8B | 0.1344 | 0.6074 | 0.3366 | 0.031* | |
| H8C | 0.3133 | 0.8199 | 0.4145 | 0.031* |
| Pb1 | 0.00762 (8) | 0.00740 (8) | 0.01117 (8) | 0.00219 (6) | 0.00281 (5) | 0.00244 (5) |
| O1 | 0.0087 (12) | 0.0098 (12) | 0.0179 (12) | 0.0040 (10) | 0.0032 (9) | 0.0049 (10) |
| O2 | 0.0082 (12) | 0.0150 (13) | 0.0246 (14) | 0.0054 (11) | 0.0062 (10) | 0.0077 (11) |
| O3 | 0.0130 (12) | 0.0112 (12) | 0.0157 (12) | 0.0012 (11) | 0.0048 (9) | 0.0017 (10) |
| O4 | 0.0123 (13) | 0.0247 (16) | 0.0203 (14) | 0.0021 (12) | 0.0053 (10) | 0.0018 (12) |
| C1 | 0.0119 (16) | 0.0087 (16) | 0.0123 (16) | 0.0048 (14) | 0.0025 (12) | 0.0006 (13) |
| C2 | 0.0098 (17) | 0.0120 (18) | 0.0240 (19) | 0.0034 (15) | 0.0051 (14) | 0.0091 (15) |
| C3 | 0.0107 (17) | 0.0115 (17) | 0.0151 (16) | 0.0037 (15) | −0.0002 (13) | 0.0028 (14) |
| C4 | 0.023 (2) | 0.0139 (19) | 0.0179 (18) | 0.0035 (17) | 0.0004 (15) | −0.0014 (15) |
| C5 | 0.0120 (16) | 0.0105 (17) | 0.0090 (15) | 0.0010 (14) | 0.0011 (12) | 0.0005 (13) |
| O5 | 0.0146 (13) | 0.0202 (14) | 0.0150 (12) | 0.0062 (12) | 0.0061 (10) | 0.0089 (11) |
| C6 | 0.0110 (17) | 0.0105 (16) | 0.0145 (16) | 0.0036 (14) | 0.0013 (12) | −0.0007 (13) |
| C7 | 0.0109 (16) | 0.0128 (17) | 0.0133 (16) | 0.0029 (14) | 0.0038 (12) | 0.0001 (14) |
| C8 | 0.0190 (19) | 0.025 (2) | 0.0224 (19) | 0.0138 (18) | 0.0055 (15) | 0.0065 (16) |
| Pb1—O3 | 2.355 (3) | C2—H2C | 0.9800 |
| Pb1—O1 | 2.493 (3) | C3—C4 | 1.509 (5) |
| Pb1—O2 | 2.499 (3) | C4—H4A | 0.9800 |
| Pb1—O1i | 2.618 (2) | C4—H4B | 0.9800 |
| Pb1—O4 | 2.700 (3) | C4—H4C | 0.9800 |
| Pb1—O2ii | 2.767 (3) | C5—O5 | 1.372 (4) |
| Pb1—O5 | 2.993 (3) | C5—C7iv | 1.384 (5) |
| Pb1—O4iii | 2.994 (3) | C5—C6 | 1.405 (5) |
| O1—C1 | 1.267 (4) | O5—H5 | 0.8400 |
| O1—Pb1i | 2.618 (2) | C6—C7 | 1.393 (5) |
| O2—C1 | 1.263 (4) | C6—C8 | 1.499 (5) |
| O3—C3 | 1.275 (4) | C7—C5iv | 1.384 (5) |
| O4—C3 | 1.245 (4) | C7—H7 | 0.9500 |
| C1—C2 | 1.500 (5) | C8—H8A | 0.9800 |
| C2—H2A | 0.9800 | C8—H8B | 0.9800 |
| C2—H2B | 0.9800 | C8—H8C | 0.9800 |
| O3—Pb1—O1 | 75.58 (9) | O4—C3—O3 | 121.2 (3) |
| O3—Pb1—O2 | 77.94 (9) | O4—C3—C4 | 120.8 (3) |
| O1—Pb1—O2 | 52.08 (8) | O3—C3—C4 | 118.0 (3) |
| O3—Pb1—O1i | 75.04 (8) | C3—C4—H4A | 109.5 |
| O1—Pb1—O1i | 66.16 (9) | C3—C4—H4B | 109.5 |
| O2—Pb1—O1i | 116.77 (8) | H4A—C4—H4B | 109.5 |
| O3—Pb1—O4 | 50.93 (8) | C3—C4—H4C | 109.5 |
| O1—Pb1—O4 | 121.84 (8) | H4A—C4—H4C | 109.5 |
| O2—Pb1—O4 | 91.50 (9) | H4B—C4—H4C | 109.5 |
| O1i—Pb1—O4 | 111.98 (8) | O5—C5—C7iv | 122.7 (3) |
| C1—O1—Pb1 | 94.0 (2) | O5—C5—C6 | 116.7 (3) |
| C1—O1—Pb1i | 149.3 (2) | C7iv—C5—C6 | 120.6 (3) |
| Pb1—O1—Pb1i | 113.84 (9) | C5—O5—H5 | 109.5 |
| C1—O2—Pb1 | 93.8 (2) | C7—C6—C5 | 117.4 (3) |
| C3—O3—Pb1 | 101.7 (2) | C7—C6—C8 | 122.9 (3) |
| C3—O4—Pb1 | 86.2 (2) | C5—C6—C8 | 119.8 (3) |
| O2—C1—O1 | 120.1 (3) | C5iv—C7—C6 | 122.0 (3) |
| O2—C1—C2 | 119.4 (3) | C5iv—C7—H7 | 119.0 |
| O1—C1—C2 | 120.6 (3) | C6—C7—H7 | 119.0 |
| C1—C2—H2A | 109.5 | C6—C8—H8A | 109.5 |
| C1—C2—H2B | 109.5 | C6—C8—H8B | 109.5 |
| H2A—C2—H2B | 109.5 | H8A—C8—H8B | 109.5 |
| C1—C2—H2C | 109.5 | C6—C8—H8C | 109.5 |
| H2A—C2—H2C | 109.5 | H8A—C8—H8C | 109.5 |
| H2B—C2—H2C | 109.5 | H8B—C8—H8C | 109.5 |
| O3—Pb1—O1—C1 | 86.8 (2) | O2—Pb1—O4—C3 | 74.2 (2) |
| O2—Pb1—O1—C1 | 1.04 (19) | O1i—Pb1—O4—C3 | −45.6 (2) |
| O1i—Pb1—O1—C1 | 166.6 (3) | Pb1—O2—C1—O1 | 1.9 (3) |
| O4—Pb1—O1—C1 | 64.6 (2) | Pb1—O2—C1—C2 | −178.1 (3) |
| O3—Pb1—O1—Pb1i | −79.76 (11) | Pb1—O1—C1—O2 | −1.9 (3) |
| O2—Pb1—O1—Pb1i | −165.57 (16) | Pb1i—O1—C1—O2 | 153.6 (3) |
| O1i—Pb1—O1—Pb1i | 0.0 | Pb1—O1—C1—C2 | 178.1 (3) |
| O4—Pb1—O1—Pb1i | −101.97 (11) | Pb1i—O1—C1—C2 | −26.4 (6) |
| O3—Pb1—O2—C1 | −82.0 (2) | Pb1—O4—C3—O3 | −1.8 (3) |
| O1—Pb1—O2—C1 | −1.05 (19) | Pb1—O4—C3—C4 | 175.7 (3) |
| O1i—Pb1—O2—C1 | −15.8 (2) | Pb1—O3—C3—O4 | 2.1 (4) |
| O4—Pb1—O2—C1 | −131.5 (2) | Pb1—O3—C3—C4 | −175.4 (3) |
| O1—Pb1—O3—C3 | −156.6 (2) | O5—C5—C6—C7 | 178.3 (3) |
| O2—Pb1—O3—C3 | −103.1 (2) | C7iv—C5—C6—C7 | 0.3 (6) |
| O1i—Pb1—O3—C3 | 134.7 (2) | O5—C5—C6—C8 | −2.3 (5) |
| O4—Pb1—O3—C3 | −1.1 (2) | C7iv—C5—C6—C8 | 179.8 (4) |
| O3—Pb1—O4—C3 | 1.1 (2) | C5—C6—C7—C5iv | −0.3 (6) |
| O1—Pb1—O4—C3 | 29.2 (2) | C8—C6—C7—C5iv | −179.8 (4) |
| H··· | ||||
| O5—H5···O3i | 0.84 | 1.87 | 2.668 (4) | 159. |
Selected bond lengths (Å)
| Pb1—O3 | 2.355 (3) |
| Pb1—O1 | 2.493 (3) |
| Pb1—O2 | 2.499 (3) |
| Pb1—O1i | 2.618 (2) |
| Pb1—O4 | 2.700 (3) |
| Pb1—O2ii | 2.767 (3) |
| Pb1—O5 | 2.993 (3) |
| Pb1—O4iii | 2.994 (3) |
Symmetry codes: (i) ; (ii) ; (iii) .
Hydrogen-bond geometry (Å, °)
| H⋯ | ||||
|---|---|---|---|---|
| O5—H5⋯O3i | 0.84 | 1.87 | 2.668 (4) | 159 |
Symmetry code: (i) .