Supporting information
Crystallographic Information File (CIF) https://doi.org/10.1107/S1600536807037981/ww2082sup1.cif | |
Structure factor file (CIF format) https://doi.org/10.1107/S1600536807037981/ww2082Isup2.hkl |
CCDC reference: 663563
The title compound was synthesized with lead nitrate (0.331 g, 1 mmol) and H2bdc (0.166 g, 1 mmol) in nmp (15 ml). The mixture was placed in a 25 ml conical flask, which was heated at 363 K for 3 days. The product was isolated in 55% yield. The elemental analysis for the title compound is almost in agreement with the theoretical values. (Found wt%: C, 32.88; H, 2.74; N, 2.99; calculated wt%: C, 33.19; H, 2.78; N, 2.98).
H atoms were placed in calculated positions, C—H = 0.94 Å (aromatic), 0.98 Å (methylene), with Uiso(H) = 1.2Ueq(C) and 0.97 Å (methyl), with Uiso(H) = 1.5Ueq(C) and refined in riding mode.
The three-dimensional coordination polymers have received much attention in recent years. However, most of the reported structures are transition metal compounds (Li et al., 1999; Rosi et al., 2005); compounds with main group metals such as Pb are seldom reported (Schuy & Ruschewitz, 2005; Zhou et al., 2006). Herein the crystal structure of a three-dimensional lead coordination polymer [Pb2(C8H4O4)2(C5H9NO)2]n, is reported.
In the title compound, [Pb2(C8H4O4)2(C5H9NO)2]n, the two Pb atoms in the structure exist in different coordination geometries (Fig. 1). The Pb1 ion is coordinated by five O atoms, four of which are from three carboxyl groups and one is from a nmp molecule, with 'stereo-chemically active' electron lone pair, and the coordination sphere is hemi-directed (Hancock et al., 1988). [Pb1—O2 2.381 (4) Å; Pb1—O5 2.410 (4) Å; Pb1—O6 2.461 (4) Å; Pb1—O3i 2.486 (4) Å; Pb1—O9 2.633 (5) Å]. The Pb2 ion is coordinated by six O atoms, five of which are from three carboxyl groups and one is from a nmp molecule. [Pb2—O7 2.434 (4) Å; Pb2—O8 2.456 (4) Å; Pb2—O4ii 2.494 (4) Å; Pb2—O1 2.552 (4) Å; Pb2—O10 2.657 (5) Å; Pb2—O3ii 2.660 (4) Å]. There are three coordination modes between Pb ions and carboxyl groups: (a) chelating/bridging bidentate, (b) chelating bidentate, (c) bidentate. The Pb ions are connected by carboxyl groups to form metal chains along a axis. Furthermore the bdc dianions connect each chain to four neighboring chains, resulting in a three-dimensional network with channels in which nmp molecules reside as coordinated ligands (Fig. 2).
For related literature, see: Hancock et al. (1988); Li et al. (1999); Rosi et al. (2005); Schuy & Ruschewitz (2005); Zhou et al. (2006).
Data collection: SMART (Bruker, 2001); cell refinement: SAINT (Bruker, 2001); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: ORTEP-3 for Windows (Farrugia, 1997); software used to prepare material for publication: SHELXL97.
[Pb2(C8H4O4)2(C5H9NO)2] | Z = 2 |
Mr = 940.87 | F(000) = 880 |
Triclinic, P1 | Dx = 2.370 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 6.7327 (11) Å | Cell parameters from 7207 reflections |
b = 10.1503 (17) Å | θ = 2.5–28.6° |
c = 20.249 (3) Å | µ = 12.82 mm−1 |
α = 78.521 (3)° | T = 223 K |
β = 83.357 (3)° | Plate, light-yellow |
γ = 77.113 (3)° | 0.18 × 0.10 × 0.03 mm |
V = 1318.3 (4) Å3 |
Bruker APEX area-detector diffractometer | 6153 independent reflections |
Radiation source: fine-focus sealed tube | 5400 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.038 |
φ and ω scans | θmax = 28.6°, θmin = 1.0° |
Absorption correction: multi-scan (SADABS; Bruker, 2001) | h = −8→8 |
Tmin = 0.206, Tmax = 0.700 | k = −13→13 |
15362 measured reflections | l = −26→26 |
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)] = 0.033 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.079 | H-atom parameters constrained |
S = 1.04 | w = 1/[σ2(Fo2) + (0.0336P)2 + 2.0349P] where P = (Fo2 + 2Fc2)/3 |
6153 reflections | (Δ/σ)max = 0.001 |
361 parameters | Δρmax = 2.38 e Å−3 |
0 restraints | Δρmin = −1.53 e Å−3 |
[Pb2(C8H4O4)2(C5H9NO)2] | γ = 77.113 (3)° |
Mr = 940.87 | V = 1318.3 (4) Å3 |
Triclinic, P1 | Z = 2 |
a = 6.7327 (11) Å | Mo Kα radiation |
b = 10.1503 (17) Å | µ = 12.82 mm−1 |
c = 20.249 (3) Å | T = 223 K |
α = 78.521 (3)° | 0.18 × 0.10 × 0.03 mm |
β = 83.357 (3)° |
Bruker APEX area-detector diffractometer | 6153 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2001) | 5400 reflections with I > 2σ(I) |
Tmin = 0.206, Tmax = 0.700 | Rint = 0.038 |
15362 measured reflections |
R[F2 > 2σ(F2)] = 0.033 | 0 restraints |
wR(F2) = 0.079 | H-atom parameters constrained |
S = 1.04 | Δρmax = 2.38 e Å−3 |
6153 reflections | Δρmin = −1.53 e Å−3 |
361 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 | ||
Pb1 | 0.49390 (3) | 0.79973 (2) | 0.293309 (10) | 0.01922 (7) | |
Pb2 | 0.07338 (3) | 0.681658 (19) | 0.205959 (10) | 0.01888 (7) | |
O1 | 0.3686 (6) | 0.5548 (4) | 0.2779 (2) | 0.0249 (9) | |
O2 | 0.6821 (6) | 0.5951 (4) | 0.2572 (2) | 0.0245 (9) | |
O3 | 0.7606 (6) | −0.1078 (4) | 0.2138 (2) | 0.0220 (8) | |
O4 | 1.0651 (6) | −0.0907 (4) | 0.2364 (2) | 0.0294 (10) | |
O5 | 0.8092 (6) | 0.7332 (4) | 0.3482 (2) | 0.0248 (9) | |
O6 | 0.5560 (6) | 0.6398 (5) | 0.4009 (2) | 0.0306 (10) | |
O7 | 0.3786 (6) | 0.7598 (4) | 0.1514 (2) | 0.0282 (9) | |
O8 | 0.1058 (6) | 0.8232 (4) | 0.0934 (2) | 0.0294 (10) | |
O9 | 0.4368 (8) | 0.9887 (5) | 0.3696 (3) | 0.0462 (13) | |
O10 | 0.1395 (8) | 0.4857 (5) | 0.1317 (3) | 0.0397 (12) | |
C1 | 0.6404 (8) | 0.3726 (5) | 0.2533 (3) | 0.0211 (12) | |
C2 | 0.8410 (9) | 0.3127 (6) | 0.2657 (3) | 0.0257 (13) | |
H2A | 0.9255 | 0.3641 | 0.2786 | 0.031* | |
C3 | 0.9179 (9) | 0.1773 (6) | 0.2592 (3) | 0.0251 (13) | |
H3A | 1.0531 | 0.1354 | 0.2690 | 0.030* | |
C4 | 0.7941 (8) | 0.1038 (5) | 0.2381 (3) | 0.0191 (11) | |
C5 | 0.5969 (9) | 0.1660 (6) | 0.2233 (3) | 0.0237 (12) | |
H5A | 0.5155 | 0.1169 | 0.2072 | 0.028* | |
C6 | 0.5179 (9) | 0.2987 (6) | 0.2316 (3) | 0.0241 (12) | |
H6A | 0.3817 | 0.3394 | 0.2227 | 0.029* | |
C7 | 0.5572 (9) | 0.5174 (5) | 0.2632 (3) | 0.0206 (11) | |
C8 | 0.8810 (9) | −0.0405 (6) | 0.2293 (3) | 0.0206 (11) | |
C9 | 0.8759 (9) | 0.5726 (6) | 0.4494 (3) | 0.0211 (11) | |
C10 | 1.0735 (9) | 0.5929 (6) | 0.4484 (3) | 0.0270 (13) | |
H10A | 1.1236 | 0.6555 | 0.4133 | 0.032* | |
C11 | 0.7381 (9) | 0.6534 (6) | 0.3962 (3) | 0.0231 (12) | |
C12 | 0.8054 (9) | 0.4786 (6) | 0.5013 (3) | 0.0238 (12) | |
H12A | 0.6722 | 0.4640 | 0.5018 | 0.029* | |
C13 | 0.2876 (9) | 0.8267 (6) | 0.1006 (3) | 0.0228 (12) | |
C14 | 0.3981 (8) | 0.9159 (5) | 0.0480 (3) | 0.0205 (11) | |
C15 | 0.5835 (8) | 0.9424 (6) | 0.0614 (3) | 0.0216 (12) | |
H15A | 0.6399 | 0.9026 | 0.1029 | 0.026* | |
C16 | 0.3171 (8) | 0.9733 (6) | −0.0138 (3) | 0.0226 (12) | |
H16A | 0.1938 | 0.9544 | −0.0230 | 0.027* | |
C17 | 0.5294 (12) | 1.0507 (7) | 0.3975 (3) | 0.0365 (16) | |
C18 | 0.7348 (12) | 0.9995 (7) | 0.4256 (4) | 0.0421 (17) | |
H18A | 0.7333 | 0.9176 | 0.4605 | 0.050* | |
H18B | 0.8398 | 0.9759 | 0.3897 | 0.050* | |
C19 | 0.7776 (14) | 1.1124 (10) | 0.4549 (5) | 0.065 (3) | |
H19A | 0.9021 | 1.1409 | 0.4325 | 0.079* | |
H19B | 0.7954 | 1.0826 | 0.5033 | 0.079* | |
C20 | 0.5956 (13) | 1.2285 (8) | 0.4433 (4) | 0.0471 (19) | |
H20A | 0.5307 | 1.2525 | 0.4864 | 0.057* | |
H20B | 0.6363 | 1.3099 | 0.4152 | 0.057* | |
C21 | 0.2615 (12) | 1.2598 (8) | 0.3909 (4) | 0.0442 (18) | |
H21A | 0.1928 | 1.2076 | 0.3691 | 0.066* | |
H21B | 0.2799 | 1.3432 | 0.3600 | 0.066* | |
H21C | 0.1795 | 1.2834 | 0.4311 | 0.066* | |
C22 | −0.0052 (11) | 0.4676 (7) | 0.1046 (3) | 0.0350 (15) | |
C23 | −0.1965 (10) | 0.5733 (7) | 0.0896 (4) | 0.0381 (16) | |
H23A | −0.2691 | 0.5997 | 0.1313 | 0.046* | |
H23B | −0.1648 | 0.6556 | 0.0595 | 0.046* | |
C24 | −0.3207 (14) | 0.5057 (10) | 0.0563 (4) | 0.060 (2) | |
H24A | −0.3416 | 0.5545 | 0.0099 | 0.072* | |
H24B | −0.4545 | 0.5058 | 0.0811 | 0.072* | |
C25 | −0.2025 (14) | 0.3580 (10) | 0.0561 (4) | 0.057 (2) | |
H25A | −0.2762 | 0.2916 | 0.0844 | 0.068* | |
H25B | −0.1780 | 0.3379 | 0.0101 | 0.068* | |
C26 | 0.1454 (15) | 0.2341 (8) | 0.0906 (5) | 0.062 (3) | |
H26A | 0.2605 | 0.2524 | 0.1094 | 0.093* | |
H26B | 0.1886 | 0.2087 | 0.0466 | 0.093* | |
H26C | 0.0950 | 0.1595 | 0.1205 | 0.093* | |
N1 | 0.4575 (9) | 1.1788 (6) | 0.4093 (3) | 0.0355 (13) | |
N2 | −0.0156 (11) | 0.3562 (6) | 0.0834 (3) | 0.0448 (15) |
U11 | U22 | U33 | U12 | U13 | U23 | |
Pb1 | 0.01844 (12) | 0.01974 (11) | 0.01939 (12) | −0.00224 (8) | −0.00335 (8) | −0.00412 (8) |
Pb2 | 0.01798 (12) | 0.01763 (11) | 0.02114 (12) | −0.00417 (8) | −0.00126 (8) | −0.00327 (8) |
O1 | 0.019 (2) | 0.024 (2) | 0.028 (2) | 0.0010 (16) | −0.0018 (17) | −0.0013 (17) |
O2 | 0.023 (2) | 0.0189 (19) | 0.032 (2) | −0.0030 (16) | −0.0017 (17) | −0.0068 (17) |
O3 | 0.024 (2) | 0.0224 (19) | 0.023 (2) | −0.0090 (17) | −0.0032 (16) | −0.0054 (16) |
O4 | 0.024 (2) | 0.022 (2) | 0.043 (3) | −0.0011 (18) | −0.0036 (19) | −0.0104 (19) |
O5 | 0.025 (2) | 0.028 (2) | 0.018 (2) | −0.0050 (17) | −0.0075 (16) | 0.0043 (17) |
O6 | 0.023 (2) | 0.045 (3) | 0.022 (2) | −0.010 (2) | −0.0072 (17) | 0.0041 (19) |
O7 | 0.025 (2) | 0.033 (2) | 0.021 (2) | −0.0061 (18) | −0.0024 (17) | 0.0083 (18) |
O8 | 0.025 (2) | 0.038 (2) | 0.025 (2) | −0.0110 (19) | −0.0041 (17) | 0.0025 (19) |
O9 | 0.056 (3) | 0.043 (3) | 0.050 (3) | −0.018 (3) | −0.002 (3) | −0.025 (3) |
O10 | 0.042 (3) | 0.047 (3) | 0.035 (3) | −0.006 (2) | −0.010 (2) | −0.019 (2) |
C1 | 0.020 (3) | 0.019 (3) | 0.022 (3) | 0.000 (2) | 0.000 (2) | −0.005 (2) |
C2 | 0.023 (3) | 0.024 (3) | 0.032 (3) | −0.007 (2) | −0.004 (2) | −0.006 (3) |
C3 | 0.020 (3) | 0.026 (3) | 0.029 (3) | −0.001 (2) | 0.001 (2) | −0.008 (2) |
C4 | 0.022 (3) | 0.019 (3) | 0.015 (3) | −0.004 (2) | −0.003 (2) | 0.000 (2) |
C5 | 0.025 (3) | 0.025 (3) | 0.025 (3) | −0.010 (2) | −0.005 (2) | −0.004 (2) |
C6 | 0.026 (3) | 0.023 (3) | 0.023 (3) | −0.003 (2) | −0.006 (2) | −0.004 (2) |
C7 | 0.024 (3) | 0.019 (3) | 0.017 (3) | −0.002 (2) | −0.003 (2) | −0.001 (2) |
C8 | 0.022 (3) | 0.022 (3) | 0.016 (3) | −0.003 (2) | 0.001 (2) | −0.003 (2) |
C9 | 0.021 (3) | 0.025 (3) | 0.017 (3) | −0.005 (2) | −0.002 (2) | −0.005 (2) |
C10 | 0.029 (3) | 0.031 (3) | 0.021 (3) | −0.011 (3) | −0.003 (2) | 0.003 (2) |
C11 | 0.026 (3) | 0.029 (3) | 0.016 (3) | −0.007 (2) | −0.002 (2) | −0.008 (2) |
C12 | 0.019 (3) | 0.031 (3) | 0.022 (3) | −0.008 (2) | −0.006 (2) | 0.000 (2) |
C13 | 0.024 (3) | 0.021 (3) | 0.021 (3) | −0.001 (2) | 0.002 (2) | −0.003 (2) |
C14 | 0.020 (3) | 0.019 (3) | 0.020 (3) | −0.001 (2) | 0.001 (2) | −0.001 (2) |
C15 | 0.019 (3) | 0.027 (3) | 0.016 (3) | −0.001 (2) | −0.004 (2) | 0.000 (2) |
C16 | 0.016 (3) | 0.028 (3) | 0.024 (3) | −0.002 (2) | −0.005 (2) | −0.008 (2) |
C17 | 0.056 (5) | 0.036 (4) | 0.021 (3) | −0.019 (3) | 0.005 (3) | −0.006 (3) |
C18 | 0.052 (5) | 0.040 (4) | 0.032 (4) | −0.005 (3) | 0.004 (3) | −0.010 (3) |
C19 | 0.049 (5) | 0.086 (7) | 0.076 (7) | −0.024 (5) | −0.003 (5) | −0.036 (6) |
C20 | 0.063 (5) | 0.052 (4) | 0.039 (4) | −0.027 (4) | 0.002 (4) | −0.023 (4) |
C21 | 0.053 (5) | 0.048 (4) | 0.036 (4) | −0.017 (4) | 0.008 (3) | −0.015 (3) |
C22 | 0.046 (4) | 0.038 (4) | 0.023 (3) | −0.015 (3) | 0.006 (3) | −0.007 (3) |
C23 | 0.033 (4) | 0.047 (4) | 0.030 (4) | −0.001 (3) | −0.003 (3) | −0.004 (3) |
C24 | 0.059 (6) | 0.090 (7) | 0.040 (5) | −0.023 (5) | −0.009 (4) | −0.024 (5) |
C25 | 0.073 (6) | 0.086 (7) | 0.030 (4) | −0.050 (5) | 0.005 (4) | −0.021 (4) |
C26 | 0.089 (7) | 0.036 (4) | 0.050 (5) | 0.004 (4) | 0.005 (5) | −0.008 (4) |
N1 | 0.045 (4) | 0.036 (3) | 0.032 (3) | −0.019 (3) | 0.003 (3) | −0.014 (3) |
N2 | 0.067 (4) | 0.040 (3) | 0.031 (3) | −0.016 (3) | 0.000 (3) | −0.010 (3) |
Pb1—O2 | 2.381 (4) | C10—C12v | 1.365 (8) |
Pb1—O5 | 2.410 (4) | C10—H10A | 0.9400 |
Pb1—O6 | 2.461 (4) | C12—C10v | 1.365 (8) |
Pb1—O3i | 2.486 (4) | C12—H12A | 0.9400 |
Pb1—O9 | 2.633 (5) | C13—C14 | 1.496 (8) |
Pb1—C11 | 2.779 (6) | C14—C16 | 1.388 (8) |
Pb2—O7 | 2.434 (4) | C14—C15 | 1.400 (8) |
Pb2—O8 | 2.456 (4) | C15—C16vi | 1.374 (8) |
Pb2—O4ii | 2.494 (4) | C15—H15A | 0.9400 |
Pb2—O1 | 2.552 (4) | C16—C15vi | 1.374 (8) |
Pb2—O10 | 2.657 (5) | C16—H16A | 0.9400 |
Pb2—O3ii | 2.660 (4) | C17—N1 | 1.341 (8) |
Pb2—C13 | 2.791 (6) | C17—C18 | 1.500 (10) |
O1—C7 | 1.260 (7) | C18—C19 | 1.485 (11) |
O2—C7 | 1.256 (7) | C18—H18A | 0.9800 |
O3—C8 | 1.271 (7) | C18—H18B | 0.9800 |
O3—Pb1iii | 2.486 (4) | C19—C20 | 1.503 (12) |
O3—Pb2iv | 2.660 (4) | C19—H19A | 0.9800 |
O4—C8 | 1.243 (7) | C19—H19B | 0.9800 |
O4—Pb2iv | 2.494 (4) | C20—N1 | 1.445 (9) |
O5—C11 | 1.257 (7) | C20—H20A | 0.9800 |
O6—C11 | 1.255 (7) | C20—H20B | 0.9800 |
O7—C13 | 1.256 (7) | C21—N1 | 1.437 (10) |
O8—C13 | 1.259 (7) | C21—H21A | 0.9700 |
O9—C17 | 1.224 (8) | C21—H21B | 0.9700 |
O10—C22 | 1.236 (8) | C21—H21C | 0.9700 |
C1—C2 | 1.381 (8) | C22—N2 | 1.306 (9) |
C1—C6 | 1.388 (8) | C22—C23 | 1.499 (9) |
C1—C7 | 1.496 (7) | C23—C24 | 1.482 (10) |
C2—C3 | 1.384 (8) | C23—H23A | 0.9800 |
C2—H2A | 0.9400 | C23—H23B | 0.9800 |
C3—C4 | 1.386 (8) | C24—C25 | 1.533 (13) |
C3—H3A | 0.9400 | C24—H24A | 0.9800 |
C4—C5 | 1.377 (8) | C24—H24B | 0.9800 |
C4—C8 | 1.488 (7) | C25—N2 | 1.427 (10) |
C5—C6 | 1.369 (8) | C25—H25A | 0.9800 |
C5—H5A | 0.9400 | C25—H25B | 0.9800 |
C6—H6A | 0.9400 | C26—N2 | 1.448 (10) |
C9—C10 | 1.388 (8) | C26—H26A | 0.9700 |
C9—C12 | 1.388 (8) | C26—H26B | 0.9700 |
C9—C11 | 1.495 (8) | C26—H26C | 0.9700 |
O2—Pb1—O5 | 72.48 (14) | O6—C11—Pb1 | 62.3 (3) |
O2—Pb1—O6 | 77.41 (15) | O5—C11—Pb1 | 60.0 (3) |
O5—Pb1—O6 | 53.70 (13) | C9—C11—Pb1 | 177.6 (4) |
O2—Pb1—O3i | 79.52 (13) | C10v—C12—C9 | 121.0 (5) |
O5—Pb1—O3i | 72.31 (13) | C10v—C12—H12A | 119.5 |
O6—Pb1—O3i | 125.39 (13) | C9—C12—H12A | 119.5 |
O2—Pb1—O9 | 152.10 (16) | O7—C13—O8 | 122.0 (5) |
O5—Pb1—O9 | 79.82 (16) | O7—C13—C14 | 118.7 (5) |
O6—Pb1—O9 | 83.63 (16) | O8—C13—C14 | 119.3 (5) |
O3i—Pb1—O9 | 95.47 (15) | O7—C13—Pb2 | 60.6 (3) |
O2—Pb1—C11 | 72.56 (15) | O8—C13—Pb2 | 61.6 (3) |
O5—Pb1—C11 | 26.86 (15) | C14—C13—Pb2 | 174.3 (4) |
O6—Pb1—C11 | 26.85 (15) | C16—C14—C15 | 119.8 (5) |
O3i—Pb1—C11 | 98.80 (15) | C16—C14—C13 | 120.4 (5) |
O9—Pb1—C11 | 81.26 (17) | C15—C14—C13 | 119.8 (5) |
O7—Pb2—O8 | 53.45 (13) | C16vi—C15—C14 | 119.9 (5) |
O7—Pb2—O4ii | 72.48 (14) | C16vi—C15—H15A | 120.1 |
O8—Pb2—O4ii | 79.12 (15) | C14—C15—H15A | 120.1 |
O7—Pb2—O1 | 72.97 (13) | C15vi—C16—C14 | 120.3 (5) |
O8—Pb2—O1 | 125.62 (13) | C15vi—C16—H16A | 119.8 |
O4ii—Pb2—O1 | 94.54 (13) | C14—C16—H16A | 119.8 |
O7—Pb2—O10 | 90.42 (15) | O9—C17—N1 | 124.3 (7) |
O8—Pb2—O10 | 80.92 (15) | O9—C17—C18 | 127.7 (7) |
O4ii—Pb2—O10 | 159.02 (16) | N1—C17—C18 | 108.0 (6) |
O1—Pb2—O10 | 91.84 (14) | C19—C18—C17 | 106.8 (6) |
O7—Pb2—O3ii | 111.17 (13) | C19—C18—H18A | 110.4 |
O8—Pb2—O3ii | 78.39 (13) | C17—C18—H18A | 110.4 |
O4ii—Pb2—O3ii | 50.44 (12) | C19—C18—H18B | 110.4 |
O1—Pb2—O3ii | 136.11 (13) | C17—C18—H18B | 110.4 |
O10—Pb2—O3ii | 130.70 (13) | H18A—C18—H18B | 108.6 |
O7—Pb2—C13 | 26.71 (15) | C18—C19—C20 | 106.0 (7) |
O8—Pb2—C13 | 26.80 (15) | C18—C19—H19A | 110.5 |
O4ii—Pb2—C13 | 72.88 (16) | C20—C19—H19A | 110.5 |
O1—Pb2—C13 | 99.48 (15) | C18—C19—H19B | 110.5 |
O10—Pb2—C13 | 86.36 (16) | C20—C19—H19B | 110.5 |
O3ii—Pb2—C13 | 94.22 (14) | H19A—C19—H19B | 108.7 |
C7—O1—Pb2 | 132.2 (4) | N1—C20—C19 | 105.6 (6) |
C7—O2—Pb1 | 105.6 (3) | N1—C20—H20A | 110.6 |
C8—O3—Pb1iii | 124.5 (4) | C19—C20—H20A | 110.6 |
C8—O3—Pb2iv | 89.4 (3) | N1—C20—H20B | 110.6 |
Pb1iii—O3—Pb2iv | 106.20 (13) | C19—C20—H20B | 110.6 |
C8—O4—Pb2iv | 97.9 (3) | H20A—C20—H20B | 108.7 |
C11—O5—Pb1 | 93.2 (3) | N1—C21—H21A | 109.5 |
C11—O6—Pb1 | 90.9 (3) | N1—C21—H21B | 109.5 |
C13—O7—Pb2 | 92.7 (3) | H21A—C21—H21B | 109.5 |
C13—O8—Pb2 | 91.6 (3) | N1—C21—H21C | 109.5 |
C17—O9—Pb1 | 142.2 (5) | H21A—C21—H21C | 109.5 |
C22—O10—Pb2 | 118.8 (4) | H21B—C21—H21C | 109.5 |
C2—C1—C6 | 120.0 (5) | O10—C22—N2 | 126.1 (7) |
C2—C1—C7 | 119.5 (5) | O10—C22—C23 | 124.7 (6) |
C6—C1—C7 | 120.5 (5) | N2—C22—C23 | 109.2 (6) |
C1—C2—C3 | 120.1 (5) | C24—C23—C22 | 104.9 (7) |
C1—C2—H2A | 119.9 | C24—C23—H23A | 110.8 |
C3—C2—H2A | 119.9 | C22—C23—H23A | 110.8 |
C2—C3—C4 | 119.5 (5) | C24—C23—H23B | 110.8 |
C2—C3—H3A | 120.3 | C22—C23—H23B | 110.8 |
C4—C3—H3A | 120.3 | H23A—C23—H23B | 108.8 |
C5—C4—C3 | 120.0 (5) | C23—C24—C25 | 107.0 (7) |
C5—C4—C8 | 121.2 (5) | C23—C24—H24A | 110.3 |
C3—C4—C8 | 118.8 (5) | C25—C24—H24A | 110.3 |
C6—C5—C4 | 120.9 (5) | C23—C24—H24B | 110.3 |
C6—C5—H5A | 119.6 | C25—C24—H24B | 110.3 |
C4—C5—H5A | 119.6 | H24A—C24—H24B | 108.6 |
C5—C6—C1 | 119.5 (5) | N2—C25—C24 | 102.9 (6) |
C5—C6—H6A | 120.3 | N2—C25—H25A | 111.2 |
C1—C6—H6A | 120.3 | C24—C25—H25A | 111.2 |
O2—C7—O1 | 123.4 (5) | N2—C25—H25B | 111.2 |
O2—C7—C1 | 117.4 (5) | C24—C25—H25B | 111.2 |
O1—C7—C1 | 119.2 (5) | H25A—C25—H25B | 109.1 |
O4—C8—O3 | 122.3 (5) | N2—C26—H26A | 109.5 |
O4—C8—C4 | 120.4 (5) | N2—C26—H26B | 109.5 |
O3—C8—C4 | 117.4 (5) | H26A—C26—H26B | 109.5 |
C10—C9—C12 | 119.3 (5) | N2—C26—H26C | 109.5 |
C10—C9—C11 | 120.5 (5) | H26A—C26—H26C | 109.5 |
C12—C9—C11 | 120.1 (5) | H26B—C26—H26C | 109.5 |
C12v—C10—C9 | 119.6 (6) | C17—N1—C21 | 123.9 (6) |
C12v—C10—H10A | 120.2 | C17—N1—C20 | 113.6 (6) |
C9—C10—H10A | 120.2 | C21—N1—C20 | 122.5 (6) |
O6—C11—O5 | 122.3 (5) | C22—N2—C25 | 115.8 (7) |
O6—C11—C9 | 119.2 (5) | C22—N2—C26 | 122.9 (7) |
O5—C11—C9 | 118.6 (5) | C25—N2—C26 | 121.2 (7) |
O7—Pb2—O1—C7 | −29.7 (5) | C3—C4—C8—O3 | 176.0 (5) |
O8—Pb2—O1—C7 | −20.0 (5) | C12—C9—C10—C12v | −0.7 (10) |
O4ii—Pb2—O1—C7 | −99.9 (5) | C11—C9—C10—C12v | 177.8 (5) |
O10—Pb2—O1—C7 | 60.1 (5) | Pb1—O6—C11—O5 | 2.2 (6) |
O3ii—Pb2—O1—C7 | −132.8 (4) | Pb1—O6—C11—C9 | −177.9 (5) |
C13—Pb2—O1—C7 | −26.5 (5) | Pb1—O5—C11—O6 | −2.2 (6) |
O5—Pb1—O2—C7 | 132.5 (4) | Pb1—O5—C11—C9 | 177.9 (4) |
O6—Pb1—O2—C7 | 76.9 (4) | C10—C9—C11—O6 | −175.2 (6) |
O3i—Pb1—O2—C7 | −153.0 (4) | C12—C9—C11—O6 | 3.2 (8) |
O9—Pb1—O2—C7 | 125.2 (4) | C10—C9—C11—O5 | 4.7 (8) |
C11—Pb1—O2—C7 | 104.3 (4) | C12—C9—C11—O5 | −176.8 (5) |
O2—Pb1—O5—C11 | −85.8 (3) | O2—Pb1—C11—O6 | −96.6 (4) |
O6—Pb1—O5—C11 | 1.2 (3) | O5—Pb1—C11—O6 | 177.9 (6) |
O3i—Pb1—O5—C11 | −170.1 (4) | O3i—Pb1—C11—O6 | −172.6 (3) |
O9—Pb1—O5—C11 | 90.7 (4) | O9—Pb1—C11—O6 | 93.2 (4) |
O2—Pb1—O6—C11 | 76.2 (3) | O2—Pb1—C11—O5 | 85.5 (3) |
O5—Pb1—O6—C11 | −1.2 (3) | O6—Pb1—C11—O5 | −177.9 (6) |
O3i—Pb1—O6—C11 | 9.0 (4) | O3i—Pb1—C11—O5 | 9.5 (3) |
O9—Pb1—O6—C11 | −83.2 (4) | O9—Pb1—C11—O5 | −84.7 (3) |
O8—Pb2—O7—C13 | 2.7 (3) | C10—C9—C12—C10v | 0.7 (10) |
O4ii—Pb2—O7—C13 | −86.6 (3) | C11—C9—C12—C10v | −177.8 (6) |
O1—Pb2—O7—C13 | 172.8 (4) | Pb2—O7—C13—O8 | −5.0 (6) |
O10—Pb2—O7—C13 | 81.0 (3) | Pb2—O7—C13—C14 | 173.6 (4) |
O3ii—Pb2—O7—C13 | −53.6 (4) | Pb2—O8—C13—O7 | 4.9 (6) |
O7—Pb2—O8—C13 | −2.7 (3) | Pb2—O8—C13—C14 | −173.6 (5) |
O4ii—Pb2—O8—C13 | 73.5 (3) | O8—Pb2—C13—O7 | −175.2 (6) |
O1—Pb2—O8—C13 | −14.3 (4) | O4ii—Pb2—C13—O7 | 84.9 (3) |
O10—Pb2—O8—C13 | −100.0 (4) | O1—Pb2—C13—O7 | −6.9 (4) |
O3ii—Pb2—O8—C13 | 125.0 (4) | O10—Pb2—C13—O7 | −98.2 (3) |
O2—Pb1—O9—C17 | 33.1 (10) | O3ii—Pb2—C13—O7 | 131.2 (3) |
O5—Pb1—O9—C17 | 26.1 (8) | O7—Pb2—C13—O8 | 175.2 (6) |
O6—Pb1—O9—C17 | 80.3 (8) | O4ii—Pb2—C13—O8 | −99.9 (4) |
O3i—Pb1—O9—C17 | −44.8 (8) | O1—Pb2—C13—O8 | 168.3 (3) |
C11—Pb1—O9—C17 | 53.3 (8) | O10—Pb2—C13—O8 | 77.0 (3) |
O7—Pb2—O10—C22 | −134.2 (5) | O3ii—Pb2—C13—O8 | −53.6 (3) |
O8—Pb2—O10—C22 | −81.4 (5) | O7—C13—C14—C16 | 169.3 (5) |
O4ii—Pb2—O10—C22 | −99.5 (6) | O8—C13—C14—C16 | −12.2 (8) |
O1—Pb2—O10—C22 | 152.8 (5) | O7—C13—C14—C15 | −11.3 (8) |
O3ii—Pb2—O10—C22 | −15.4 (6) | O8—C13—C14—C15 | 167.3 (5) |
C13—Pb2—O10—C22 | −107.8 (5) | C16—C14—C15—C16vi | 1.0 (9) |
C6—C1—C2—C3 | −2.6 (9) | C13—C14—C15—C16vi | −178.5 (5) |
C7—C1—C2—C3 | 177.5 (5) | C15—C14—C16—C15vi | −1.0 (9) |
C1—C2—C3—C4 | 2.0 (9) | C13—C14—C16—C15vi | 178.5 (5) |
C2—C3—C4—C5 | 0.6 (9) | Pb1—O9—C17—N1 | 150.4 (6) |
C2—C3—C4—C8 | 178.1 (5) | Pb1—O9—C17—C18 | −31.4 (12) |
C3—C4—C5—C6 | −2.6 (9) | O9—C17—C18—C19 | −179.1 (8) |
C8—C4—C5—C6 | 179.9 (5) | N1—C17—C18—C19 | −0.6 (8) |
C4—C5—C6—C1 | 2.0 (9) | C17—C18—C19—C20 | 0.0 (9) |
C2—C1—C6—C5 | 0.6 (9) | C18—C19—C20—N1 | 0.6 (9) |
C7—C1—C6—C5 | −179.6 (5) | Pb2—O10—C22—N2 | −159.4 (6) |
Pb1—O2—C7—O1 | 7.5 (7) | Pb2—O10—C22—C23 | 22.1 (9) |
Pb1—O2—C7—C1 | −171.6 (4) | O10—C22—C23—C24 | 178.9 (7) |
Pb2—O1—C7—O2 | 83.5 (7) | N2—C22—C23—C24 | 0.1 (8) |
Pb2—O1—C7—C1 | −97.5 (6) | C22—C23—C24—C25 | 3.0 (9) |
C2—C1—C7—O2 | 26.5 (8) | C23—C24—C25—N2 | −4.8 (9) |
C6—C1—C7—O2 | −153.3 (6) | O9—C17—N1—C21 | 0.0 (11) |
C2—C1—C7—O1 | −152.6 (6) | C18—C17—N1—C21 | −178.5 (6) |
C6—C1—C7—O1 | 27.6 (8) | O9—C17—N1—C20 | 179.6 (7) |
Pb2iv—O4—C8—O3 | 2.6 (6) | C18—C17—N1—C20 | 1.1 (8) |
Pb2iv—O4—C8—C4 | −176.6 (4) | C19—C20—N1—C17 | −1.1 (9) |
Pb1iii—O3—C8—O4 | 106.9 (6) | C19—C20—N1—C21 | 178.5 (7) |
Pb2iv—O3—C8—O4 | −2.4 (6) | O10—C22—N2—C25 | 177.7 (7) |
Pb1iii—O3—C8—C4 | −73.9 (6) | C23—C22—N2—C25 | −3.6 (9) |
Pb2iv—O3—C8—C4 | 176.8 (4) | O10—C22—N2—C26 | 1.5 (12) |
C5—C4—C8—O4 | 172.7 (6) | C23—C22—N2—C26 | −179.8 (7) |
C3—C4—C8—O4 | −4.8 (8) | C24—C25—N2—C22 | 5.3 (9) |
C5—C4—C8—O3 | −6.5 (8) | C24—C25—N2—C26 | −178.4 (7) |
Symmetry codes: (i) x, y+1, z; (ii) x−1, y+1, z; (iii) x, y−1, z; (iv) x+1, y−1, z; (v) −x+2, −y+1, −z+1; (vi) −x+1, −y+2, −z. |
Experimental details
Crystal data | |
Chemical formula | [Pb2(C8H4O4)2(C5H9NO)2] |
Mr | 940.87 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 223 |
a, b, c (Å) | 6.7327 (11), 10.1503 (17), 20.249 (3) |
α, β, γ (°) | 78.521 (3), 83.357 (3), 77.113 (3) |
V (Å3) | 1318.3 (4) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 12.82 |
Crystal size (mm) | 0.18 × 0.10 × 0.03 |
Data collection | |
Diffractometer | Bruker APEX area-detector |
Absorption correction | Multi-scan (SADABS; Bruker, 2001) |
Tmin, Tmax | 0.206, 0.700 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 15362, 6153, 5400 |
Rint | 0.038 |
(sin θ/λ)max (Å−1) | 0.674 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.033, 0.079, 1.04 |
No. of reflections | 6153 |
No. of parameters | 361 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 2.38, −1.53 |
Computer programs: SMART (Bruker, 2001), SAINT (Bruker, 2001), SAINT, SHELXS97 (Sheldrick, 1997), SHELXL97 (Sheldrick, 1997), ORTEP-3 for Windows (Farrugia, 1997), SHELXL97.
Pb1—O2 | 2.381 (4) | Pb2—O4ii | 2.494 (4) |
Pb1—O5 | 2.410 (4) | Pb2—O1 | 2.552 (4) |
Pb1—O6 | 2.461 (4) | Pb2—O10 | 2.657 (5) |
Pb1—O3i | 2.486 (4) | Pb2—O3ii | 2.660 (4) |
Pb1—O9 | 2.633 (5) | O3—Pb1iii | 2.486 (4) |
Pb2—O7 | 2.434 (4) | O3—Pb2iv | 2.660 (4) |
Pb2—O8 | 2.456 (4) | O4—Pb2iv | 2.494 (4) |
O2—Pb1—O5 | 72.48 (14) | O7—Pb2—O1 | 72.97 (13) |
O2—Pb1—O6 | 77.41 (15) | O8—Pb2—O1 | 125.62 (13) |
O5—Pb1—O6 | 53.70 (13) | O4ii—Pb2—O1 | 94.54 (13) |
O2—Pb1—O3i | 79.52 (13) | O7—Pb2—O10 | 90.42 (15) |
O5—Pb1—O3i | 72.31 (13) | O8—Pb2—O10 | 80.92 (15) |
O6—Pb1—O3i | 125.39 (13) | O4ii—Pb2—O10 | 159.02 (16) |
O2—Pb1—O9 | 152.10 (16) | O1—Pb2—O10 | 91.84 (14) |
O5—Pb1—O9 | 79.82 (16) | O7—Pb2—O3ii | 111.17 (13) |
O6—Pb1—O9 | 83.63 (16) | O8—Pb2—O3ii | 78.39 (13) |
O3i—Pb1—O9 | 95.47 (15) | O4ii—Pb2—O3ii | 50.44 (12) |
O7—Pb2—O8 | 53.45 (13) | O1—Pb2—O3ii | 136.11 (13) |
O7—Pb2—O4ii | 72.48 (14) | O10—Pb2—O3ii | 130.70 (13) |
O8—Pb2—O4ii | 79.12 (15) |
Symmetry codes: (i) x, y+1, z; (ii) x−1, y+1, z; (iii) x, y−1, z; (iv) x+1, y−1, z. |
The three-dimensional coordination polymers have received much attention in recent years. However, most of the reported structures are transition metal compounds (Li et al., 1999; Rosi et al., 2005); compounds with main group metals such as Pb are seldom reported (Schuy & Ruschewitz, 2005; Zhou et al., 2006). Herein the crystal structure of a three-dimensional lead coordination polymer [Pb2(C8H4O4)2(C5H9NO)2]n, is reported.
In the title compound, [Pb2(C8H4O4)2(C5H9NO)2]n, the two Pb atoms in the structure exist in different coordination geometries (Fig. 1). The Pb1 ion is coordinated by five O atoms, four of which are from three carboxyl groups and one is from a nmp molecule, with 'stereo-chemically active' electron lone pair, and the coordination sphere is hemi-directed (Hancock et al., 1988). [Pb1—O2 2.381 (4) Å; Pb1—O5 2.410 (4) Å; Pb1—O6 2.461 (4) Å; Pb1—O3i 2.486 (4) Å; Pb1—O9 2.633 (5) Å]. The Pb2 ion is coordinated by six O atoms, five of which are from three carboxyl groups and one is from a nmp molecule. [Pb2—O7 2.434 (4) Å; Pb2—O8 2.456 (4) Å; Pb2—O4ii 2.494 (4) Å; Pb2—O1 2.552 (4) Å; Pb2—O10 2.657 (5) Å; Pb2—O3ii 2.660 (4) Å]. There are three coordination modes between Pb ions and carboxyl groups: (a) chelating/bridging bidentate, (b) chelating bidentate, (c) bidentate. The Pb ions are connected by carboxyl groups to form metal chains along a axis. Furthermore the bdc dianions connect each chain to four neighboring chains, resulting in a three-dimensional network with channels in which nmp molecules reside as coordinated ligands (Fig. 2).