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catena-Poly[[(1,10-phenanthroline-5,6-dione-κ2N,N′)lead(II)]-μ-terephthalato-κ2O1:O4]

aDepartment of Basic Science, Tianjin Agricultural University, Tjianjin 300384, People's Republic of China, and bDepartment of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia
*Correspondence e-mail: congfangdi666@yahoo.com.cn

(Received 1 November 2009; accepted 4 November 2009; online 7 November 2009)

The PbII atom in the polymeric title compound, [Pb(C8H4O4)(C12H6N2O2)]n, is chelated by the N-heterocycle, and adjacent atoms are bridged by rigid terephthalate dianions into a linear chain. The PbII atom is stereochemically active in a ψ-square-pyramidal coordination geometry in which the lone-pair electrons occupy a basal site. When three other weaker Pb⋯O inter­actions are considered, the geometry is a ψ-dodeca­hedron.

Related literature

For the crystal structure of lead(II) terephthalate, see: Tan et al. (2009[Tan, Y.-X., Meng, F.-Y., Wu, M.-C. & Zeng, M.-H. (2009). J. Mol. Struct. 928, 176-181.]).

[Scheme 1]

Experimental

Crystal data
  • [Pb(C8H4O4)(C12H6N2O2)]

  • Mr = 581.49

  • Monoclinic, P 21 /c

  • a = 10.428 (1) Å

  • b = 15.187 (1) Å

  • c = 11.478 (3) Å

  • β = 114.444 (1)°

  • V = 1654.8 (5) Å3

  • Z = 4

  • Mo Kα radiation

  • μ = 10.24 mm−1

  • T = 295 K

  • 0.24 × 0.22 × 0.20 mm

Data collection
  • Bruker APEXII area-detector diffractometer

  • Absorption correction: multi-scan (SADABS; Sheldrick, 1996[Sheldrick, G. M. (1996). SADABS. University of Göttingen, Germany.]) Tmin = 0.193, Tmax = 0.234

  • 8875 measured reflections

  • 3233 independent reflections

  • 2369 reflections with I > 2σ(I)

  • Rint = 0.036

Refinement
  • R[F2 > 2σ(F2)] = 0.033

  • wR(F2) = 0.086

  • S = 1.00

  • 3233 reflections

  • 262 parameters

  • H-atom parameters constrained

  • Δρmax = 1.94 e Å−3

  • Δρmin = −0.95 e Å−3

Table 1
Selected bond lengths (Å)

Pb1—O1 2.410 (6)
Pb1—O2 3.211 (5)
Pb1—O2i 3.176 (6)
Pb1—O3ii 2.301 (5)
Pb1—O4ii 2.910 (5)
Pb1—N1 2.535 (6)
Pb1—N2 2.626 (6)
Symmetry codes: (i) -x+1, -y+1, -z+1; (ii) [-x+2, y+{\script{1\over 2}}, -z+{\script{3\over 2}}].

Data collection: APEX2 (Bruker, 2007[Bruker (2007). APEX2 and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA.]); cell refinement: SAINT (Bruker, 2007[Bruker (2007). APEX2 and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA.]); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008[Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.]); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008[Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.]); molecular graphics: X-SEED (Barbour, 2001[Barbour, L. J. (2001). J. Supramol. Chem. 1, 189-191.]); software used to prepare material for publication: publCIF (Westrip, 2009[Westrip, S. P. (2009). publCIF. In preparation.]).

Supporting information


Related literature top

For the crystal structure of lead(II) terephthalate, see: Tan et al. (2009).

Experimental top

Lead nitrate (0.5 mmol, 0.166 g), terephthalic acid (0.5 mmol, 0.083 g) and phenanthrene-9,10-dione (0.5 mmol, 0.104 g) in water (12 ml) were heated at 443 K for 3 days in a Teflon-lined, stainless-steel Parr bomb. The bomb was slowly cooled to room temperature after which crystals were collected in 40% yield.

Refinement top

Carbon-bound H-atoms were placed in calculated positions (C-H = 0.93 Å) and were included in the refinement in the riding model approximation, with Uiso(H) set to 1.2Ueq(C). The final difference Fourier map had one peak in the vicinity of the lead atom (0.95 Å from Pb1) but was otherwise diffuse.

Computing details top

Data collection: APEX2 (Bruker, 2007); cell refinement: SAINT (Bruker, 2007); data reduction: SAINT (Bruker, 2007); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: X-SEED (Barbour, 2001); software used to prepare material for publication: publCIF (Westrip, 2009).

Figures top
[Figure 1] Fig. 1. Displacement ellipsoid plot (Barbour, 2001) of a part of the polymeric Pb(C8H4O2)(C12H6N2O2) chain at the 70% probability level; H atoms are drawn as spheres of arbitrary radius. Symmetry code: (i) 2-x, 1/2+y, 3/2-z.
[Figure 2] Fig. 2. Detail of the polyhedron surrounding the lead atom. Symmetry codes: (i) 1-x, 1-y, 1-z; (ii) 2-x, 1/2+y, 3/2-z.
catena-Poly[[(1,10-phenanthroline-5,6-dione- κ2N,N')lead(II)]-µ-terephthalato-κ2O1:O4] top
Crystal data top
[Pb(C8H4O4)(C12H6N2O2)]F(000) = 1096
Mr = 581.49Dx = 2.334 Mg m3
Monoclinic, P21/cMo Kα radiation, λ = 0.71073 Å
Hall symbol: -P 2ybcCell parameters from 2807 reflections
a = 10.428 (1) Åθ = 2.4–25.4°
b = 15.187 (1) ŵ = 10.24 mm1
c = 11.478 (3) ÅT = 295 K
β = 114.444 (1)°Block, yellow
V = 1654.8 (5) Å30.24 × 0.22 × 0.20 mm
Z = 4
Data collection top
Bruker APEXII area-detector
diffractometer
3233 independent reflections
Radiation source: fine-focus sealed tube2369 reflections with I > 2σ(I)
Graphite monochromatorRint = 0.036
ϕ and ω scansθmax = 26.0°, θmin = 2.2°
Absorption correction: multi-scan
(SADABS; Sheldrick, 1996)
h = 127
Tmin = 0.193, Tmax = 0.234k = 1818
8875 measured reflectionsl = 1214
Refinement top
Refinement on F2Primary atom site location: structure-invariant direct methods
Least-squares matrix: fullSecondary atom site location: difference Fourier map
R[F2 > 2σ(F2)] = 0.033Hydrogen site location: inferred from neighbouring sites
wR(F2) = 0.086H-atom parameters constrained
S = 1.00 w = 1/[σ2(Fo2) + (0.0491P)2]
where P = (Fo2 + 2Fc2)/3
3233 reflections(Δ/σ)max = 0.001
262 parametersΔρmax = 1.94 e Å3
0 restraintsΔρmin = 0.95 e Å3
Crystal data top
[Pb(C8H4O4)(C12H6N2O2)]V = 1654.8 (5) Å3
Mr = 581.49Z = 4
Monoclinic, P21/cMo Kα radiation
a = 10.428 (1) ŵ = 10.24 mm1
b = 15.187 (1) ÅT = 295 K
c = 11.478 (3) Å0.24 × 0.22 × 0.20 mm
β = 114.444 (1)°
Data collection top
Bruker APEXII area-detector
diffractometer
3233 independent reflections
Absorption correction: multi-scan
(SADABS; Sheldrick, 1996)
2369 reflections with I > 2σ(I)
Tmin = 0.193, Tmax = 0.234Rint = 0.036
8875 measured reflections
Refinement top
R[F2 > 2σ(F2)] = 0.0330 restraints
wR(F2) = 0.086H-atom parameters constrained
S = 1.00Δρmax = 1.94 e Å3
3233 reflectionsΔρmin = 0.95 e Å3
262 parameters
Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2) top
xyzUiso*/Ueq
Pb10.60601 (3)0.525108 (19)0.39442 (2)0.02978 (11)
O10.8123 (7)0.4460 (4)0.5353 (5)0.0548 (17)
O20.7155 (6)0.4344 (4)0.6715 (5)0.0489 (15)
O31.2513 (6)0.1473 (4)1.0397 (5)0.0434 (14)
O41.3459 (6)0.1510 (4)0.9005 (5)0.0414 (14)
O50.7884 (6)0.5551 (4)0.1400 (5)0.0396 (14)
O60.5419 (6)0.6582 (4)0.2269 (4)0.0401 (14)
N10.7358 (7)0.4976 (4)0.2537 (6)0.0313 (15)
N20.5139 (6)0.6109 (4)0.1764 (5)0.0273 (14)
C10.8093 (8)0.4176 (5)0.6363 (6)0.0274 (16)
C20.9298 (7)0.3592 (5)0.7180 (6)0.0269 (16)
C30.9398 (8)0.3284 (5)0.8348 (6)0.0328 (18)
H30.87320.34560.86470.039*
C41.0481 (8)0.2719 (5)0.9082 (6)0.0307 (17)
H41.05300.25140.98620.037*
C51.1492 (8)0.2459 (4)0.8653 (6)0.0250 (15)
C61.1423 (8)0.2799 (5)0.7518 (6)0.0266 (16)
H61.21070.26420.72340.032*
C71.0367 (8)0.3362 (4)0.6798 (6)0.0279 (17)
H71.03590.35950.60460.033*
C81.2578 (8)0.1772 (5)0.9386 (7)0.0274 (16)
C90.8489 (9)0.4464 (5)0.2881 (7)0.039 (2)
H90.88070.41980.36810.047*
C100.9226 (8)0.4296 (6)0.2157 (7)0.0373 (19)
H101.00070.39270.24600.045*
C110.8796 (8)0.4678 (5)0.0993 (7)0.0353 (18)
H110.92840.45760.04870.042*
C120.7620 (7)0.5226 (5)0.0555 (6)0.0253 (15)
C130.7110 (8)0.5659 (5)0.0684 (6)0.0291 (17)
C140.5958 (8)0.6182 (5)0.1084 (6)0.0294 (16)
C150.5252 (8)0.6348 (5)0.0279 (6)0.0275 (16)
C160.4105 (8)0.6930 (5)0.0603 (7)0.0371 (19)
H160.37450.72080.13970.044*
C170.3523 (9)0.7087 (5)0.0235 (7)0.041 (2)
H170.27780.74810.00270.049*
C180.4045 (8)0.6657 (5)0.1401 (7)0.0354 (19)
H180.36140.67540.19560.042*
C190.5741 (7)0.5947 (4)0.0952 (6)0.0230 (15)
C200.6907 (7)0.5364 (4)0.1342 (6)0.0237 (15)
Atomic displacement parameters (Å2) top
U11U22U33U12U13U23
Pb10.02839 (17)0.03876 (18)0.02215 (15)0.00225 (15)0.01043 (12)0.00065 (13)
O10.044 (4)0.090 (5)0.032 (3)0.022 (3)0.018 (3)0.020 (3)
O20.045 (4)0.067 (4)0.043 (3)0.017 (3)0.026 (3)0.012 (3)
O30.054 (4)0.050 (3)0.032 (3)0.017 (3)0.024 (3)0.012 (3)
O40.039 (3)0.055 (4)0.035 (3)0.011 (3)0.020 (3)0.009 (3)
O50.037 (3)0.060 (4)0.031 (3)0.000 (3)0.025 (3)0.000 (3)
O60.040 (3)0.058 (4)0.022 (3)0.007 (3)0.012 (3)0.012 (2)
N10.031 (4)0.031 (3)0.030 (3)0.007 (3)0.012 (3)0.007 (2)
N20.029 (4)0.030 (3)0.024 (3)0.000 (3)0.013 (3)0.001 (2)
C10.030 (4)0.031 (4)0.020 (4)0.003 (3)0.010 (3)0.005 (3)
C20.023 (4)0.031 (4)0.020 (4)0.000 (3)0.002 (3)0.001 (3)
C30.032 (4)0.048 (5)0.019 (4)0.006 (4)0.011 (3)0.002 (3)
C40.035 (4)0.038 (4)0.019 (4)0.001 (4)0.011 (3)0.007 (3)
C50.030 (4)0.023 (4)0.023 (4)0.005 (3)0.012 (3)0.004 (3)
C60.028 (4)0.036 (4)0.019 (3)0.001 (3)0.013 (3)0.001 (3)
C70.032 (4)0.030 (4)0.021 (4)0.000 (3)0.011 (3)0.004 (3)
C80.028 (4)0.029 (4)0.025 (4)0.005 (3)0.012 (3)0.004 (3)
C90.042 (5)0.044 (5)0.028 (4)0.013 (4)0.010 (4)0.005 (3)
C100.031 (4)0.049 (5)0.031 (4)0.007 (4)0.012 (4)0.006 (4)
C110.035 (5)0.038 (4)0.038 (4)0.001 (4)0.020 (4)0.003 (4)
C120.024 (4)0.031 (4)0.022 (3)0.000 (4)0.011 (3)0.007 (3)
C130.030 (4)0.035 (4)0.023 (4)0.005 (4)0.012 (3)0.010 (3)
C140.031 (4)0.035 (4)0.020 (3)0.009 (4)0.009 (3)0.002 (3)
C150.023 (4)0.034 (4)0.021 (4)0.005 (3)0.005 (3)0.001 (3)
C160.034 (5)0.043 (5)0.031 (4)0.008 (4)0.010 (4)0.008 (4)
C170.041 (5)0.042 (5)0.036 (5)0.011 (4)0.014 (4)0.012 (4)
C180.033 (5)0.038 (4)0.037 (5)0.002 (4)0.016 (4)0.008 (3)
C190.024 (4)0.023 (3)0.020 (3)0.007 (3)0.007 (3)0.003 (3)
C200.020 (4)0.030 (4)0.017 (3)0.005 (3)0.002 (3)0.005 (3)
Geometric parameters (Å, º) top
Pb1—O12.410 (6)C5—C61.375 (9)
Pb1—O23.211 (5)C5—C81.514 (10)
Pb1—O2i3.176 (6)C6—C71.369 (9)
Pb1—O3ii2.301 (5)C6—H60.93
Pb1—O4ii2.910 (5)C7—H70.93
Pb1—N12.535 (6)C9—C101.369 (11)
Pb1—N22.626 (6)C9—H90.93
O1—C11.249 (8)C10—C111.352 (10)
O2—C11.230 (9)C10—H100.93
O3—C81.273 (8)C11—C121.392 (10)
O4—C81.235 (9)C11—H110.93
O5—C131.380 (8)C12—C201.403 (9)
O6—C141.379 (8)C12—C131.453 (10)
N1—C91.329 (10)C13—C141.352 (10)
N1—C201.384 (9)C14—C151.423 (10)
N2—C181.332 (9)C15—C161.408 (10)
N2—C191.345 (8)C15—C191.425 (9)
C1—C21.507 (10)C16—C171.354 (10)
C2—C31.382 (9)C16—H160.93
C2—C71.401 (10)C17—C181.383 (10)
C3—C41.390 (10)C17—H170.93
C3—H30.93C18—H180.93
C4—C51.392 (10)C19—C201.419 (9)
C4—H40.93
O3ii—Pb1—O184.5 (2)C7—C6—C5121.3 (7)
O3ii—Pb1—N184.2 (2)C7—C6—H6119.3
O1—Pb1—N177.40 (19)C5—C6—H6119.3
O3ii—Pb1—N281.07 (18)C6—C7—C2120.8 (6)
O1—Pb1—N2139.46 (19)C6—C7—H7119.6
N1—Pb1—N263.61 (19)C2—C7—H7119.6
O3ii—Pb1—O4ii48.16 (16)O4—C8—O3122.4 (7)
O1—Pb1—O4ii88.69 (19)O4—C8—C5121.3 (6)
N1—Pb1—O4ii131.65 (18)O3—C8—C5116.3 (7)
N2—Pb1—O4ii108.50 (17)N1—C9—C10125.5 (7)
O3ii—Pb1—O2i113.41 (19)N1—C9—H9117.2
O1—Pb1—O2i144.83 (17)C10—C9—H9117.2
N1—Pb1—O2i132.01 (18)C11—C10—C9118.7 (8)
N2—Pb1—O2i75.11 (16)C11—C10—H10120.7
O4ii—Pb1—O2i82.96 (15)C9—C10—H10120.7
O3ii—Pb1—O295.96 (17)C10—C11—C12119.7 (7)
O1—Pb1—O243.00 (17)C10—C11—H11120.1
N1—Pb1—O2119.73 (17)C12—C11—H11120.1
N2—Pb1—O2175.42 (16)C11—C12—C20118.6 (6)
O4ii—Pb1—O266.98 (16)C11—C12—C13122.4 (6)
O2i—Pb1—O2103.09 (13)C20—C12—C13119.0 (6)
C1—O1—Pb1115.9 (5)C14—C13—O5121.6 (7)
C1—O2—Pb176.6 (4)C14—C13—C12120.9 (6)
C8—O3—Pb1iii108.4 (5)O5—C13—C12117.5 (6)
C9—N1—C20116.0 (7)C13—C14—O6122.4 (7)
C9—N1—Pb1123.3 (5)C13—C14—C15120.6 (7)
C20—N1—Pb1120.6 (5)O6—C14—C15117.0 (7)
C18—N2—C19118.9 (6)C16—C15—C14123.4 (7)
C18—N2—Pb1122.4 (5)C16—C15—C19116.6 (7)
C19—N2—Pb1118.6 (4)C14—C15—C19119.9 (7)
O2—C1—O1124.2 (7)C17—C16—C15120.3 (7)
O2—C1—C2119.3 (6)C17—C16—H16119.9
O1—C1—C2116.5 (7)C15—C16—H16119.9
C3—C2—C7117.9 (7)C16—C17—C18119.5 (8)
C3—C2—C1120.8 (7)C16—C17—H17120.3
C7—C2—C1121.2 (6)C18—C17—H17120.3
C2—C3—C4120.8 (7)N2—C18—C17122.7 (7)
C2—C3—H3119.6N2—C18—H18118.7
C4—C3—H3119.6C17—C18—H18118.7
C3—C4—C5120.4 (6)N2—C19—C20118.7 (6)
C3—C4—H4119.8N2—C19—C15122.0 (6)
C5—C4—H4119.8C20—C19—C15119.2 (6)
C6—C5—C4118.5 (7)N1—C20—C12121.4 (6)
C6—C5—C8121.3 (7)N1—C20—C19118.3 (6)
C4—C5—C8120.1 (6)C12—C20—C19120.2 (6)
O3ii—Pb1—O1—C1108.0 (6)Pb1iii—O3—C8—O410.9 (9)
N1—Pb1—O1—C1166.8 (6)Pb1iii—O3—C8—C5167.9 (5)
N2—Pb1—O1—C1177.4 (5)C6—C5—C8—O41.9 (11)
O4ii—Pb1—O1—C159.9 (6)C4—C5—C8—O4177.7 (7)
O2i—Pb1—O1—C115.9 (8)C6—C5—C8—O3177.0 (7)
O2—Pb1—O1—C13.2 (5)C4—C5—C8—O31.2 (10)
O3ii—Pb1—O2—C178.4 (5)C20—N1—C9—C100.1 (12)
O1—Pb1—O2—C13.0 (5)Pb1—N1—C9—C10179.9 (7)
N1—Pb1—O2—C18.3 (5)N1—C9—C10—C110.4 (13)
O4ii—Pb1—O2—C1117.8 (5)C9—C10—C11—C120.3 (12)
O2i—Pb1—O2—C1165.8 (5)C10—C11—C12—C200.2 (11)
O3ii—Pb1—N1—C993.9 (6)C10—C11—C12—C13179.7 (7)
O1—Pb1—N1—C98.2 (6)C11—C12—C13—C14179.5 (7)
N2—Pb1—N1—C9176.8 (7)C20—C12—C13—C140.6 (11)
O4ii—Pb1—N1—C984.9 (6)C11—C12—C13—O53.7 (10)
O2i—Pb1—N1—C9149.6 (6)C20—C12—C13—O5176.2 (6)
O2—Pb1—N1—C90.3 (7)O5—C13—C14—O65.3 (11)
O3ii—Pb1—N1—C2086.2 (5)C12—C13—C14—O6178.0 (6)
O1—Pb1—N1—C20171.9 (6)O5—C13—C14—C15174.1 (6)
N2—Pb1—N1—C203.3 (5)C12—C13—C14—C152.6 (11)
O4ii—Pb1—N1—C2095.2 (5)C13—C14—C15—C16175.8 (7)
O2i—Pb1—N1—C2030.3 (6)O6—C14—C15—C163.7 (11)
O2—Pb1—N1—C20179.7 (5)C13—C14—C15—C191.4 (11)
O3ii—Pb1—N2—C1892.5 (6)O6—C14—C15—C19179.2 (6)
O1—Pb1—N2—C18163.1 (5)C14—C15—C16—C17177.0 (8)
N1—Pb1—N2—C18179.6 (6)C19—C15—C16—C170.2 (11)
O4ii—Pb1—N2—C1852.4 (6)C15—C16—C17—C181.4 (13)
O2i—Pb1—N2—C1824.8 (5)C19—N2—C18—C171.9 (11)
O3ii—Pb1—N2—C1991.7 (5)Pb1—N2—C18—C17177.6 (6)
O1—Pb1—N2—C1921.1 (6)C16—C17—C18—N22.3 (13)
N1—Pb1—N2—C193.8 (5)C18—N2—C19—C20180.0 (6)
O4ii—Pb1—N2—C19131.8 (5)Pb1—N2—C19—C204.1 (8)
O2i—Pb1—N2—C19151.0 (5)C18—N2—C19—C150.5 (10)
Pb1—O2—C1—O14.8 (7)Pb1—N2—C19—C15176.5 (5)
Pb1—O2—C1—C2175.3 (6)C16—C15—C19—N20.3 (10)
Pb1—O1—C1—O26.9 (10)C14—C15—C19—N2177.6 (6)
Pb1—O1—C1—C2173.2 (5)C16—C15—C19—C20179.1 (6)
O2—C1—C2—C33.5 (11)C14—C15—C19—C201.8 (10)
O1—C1—C2—C3176.5 (7)C9—N1—C20—C120.7 (10)
O2—C1—C2—C7178.1 (7)Pb1—N1—C20—C12179.4 (5)
O1—C1—C2—C71.9 (10)C9—N1—C20—C19177.3 (7)
C7—C2—C3—C43.9 (11)Pb1—N1—C20—C192.7 (8)
C1—C2—C3—C4177.6 (7)C11—C12—C20—N10.7 (10)
C2—C3—C4—C50.5 (11)C13—C12—C20—N1179.2 (6)
C3—C4—C5—C62.4 (10)C11—C12—C20—C19177.3 (6)
C3—C4—C5—C8173.6 (7)C13—C12—C20—C192.6 (10)
C4—C5—C6—C71.7 (10)N2—C19—C20—N11.0 (9)
C8—C5—C6—C7174.2 (6)C15—C19—C20—N1179.5 (6)
C5—C6—C7—C21.8 (11)N2—C19—C20—C12175.7 (6)
C3—C2—C7—C64.6 (11)C15—C19—C20—C123.8 (9)
C1—C2—C7—C6177.0 (6)
Symmetry codes: (i) x+1, y+1, z+1; (ii) x+2, y+1/2, z+3/2; (iii) x+2, y1/2, z+3/2.

Experimental details

Crystal data
Chemical formula[Pb(C8H4O4)(C12H6N2O2)]
Mr581.49
Crystal system, space groupMonoclinic, P21/c
Temperature (K)295
a, b, c (Å)10.428 (1), 15.187 (1), 11.478 (3)
β (°) 114.444 (1)
V3)1654.8 (5)
Z4
Radiation typeMo Kα
µ (mm1)10.24
Crystal size (mm)0.24 × 0.22 × 0.20
Data collection
DiffractometerBruker APEXII area-detector
diffractometer
Absorption correctionMulti-scan
(SADABS; Sheldrick, 1996)
Tmin, Tmax0.193, 0.234
No. of measured, independent and
observed [I > 2σ(I)] reflections
8875, 3233, 2369
Rint0.036
(sin θ/λ)max1)0.617
Refinement
R[F2 > 2σ(F2)], wR(F2), S 0.033, 0.086, 1.00
No. of reflections3233
No. of parameters262
H-atom treatmentH-atom parameters constrained
Δρmax, Δρmin (e Å3)1.94, 0.95

Computer programs: APEX2 (Bruker, 2007), SAINT (Bruker, 2007), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), X-SEED (Barbour, 2001), publCIF (Westrip, 2009).

Selected bond lengths (Å) top
Pb1—O12.410 (6)Pb1—O4ii2.910 (5)
Pb1—O23.211 (5)Pb1—N12.535 (6)
Pb1—O2i3.176 (6)Pb1—N22.626 (6)
Pb1—O3ii2.301 (5)
Symmetry codes: (i) x+1, y+1, z+1; (ii) x+2, y+1/2, z+3/2.
 

Acknowledgements

The authors thank Tianjin Agricultural University and the University of Malaya for supporting this study.

References

First citationBarbour, L. J. (2001). J. Supramol. Chem. 1, 189–191.  CrossRef CAS Google Scholar
First citationBruker (2007). APEX2 and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA.  Google Scholar
First citationSheldrick, G. M. (1996). SADABS. University of Göttingen, Germany.  Google Scholar
First citationSheldrick, G. M. (2008). Acta Cryst. A64, 112–122.  Web of Science CrossRef CAS IUCr Journals Google Scholar
First citationTan, Y.-X., Meng, F.-Y., Wu, M.-C. & Zeng, M.-H. (2009). J. Mol. Struct. 928, 176–181.  Web of Science CSD CrossRef CAS Google Scholar
First citationWestrip, S. P. (2009). publCIF. In preparation.  Google Scholar

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