catena-Poly[[(μ-3-hy-droxy-benzoato-κO,O:O)(μ-3-hy-droxy-benzoato-κO,O:O)(isonicotinamide-κN)-lead(II)] monohydrate].

In the crystal of the title polymeric compound, {[Pb(C(7)H(5)O(3))(2)(C(6)H(6)N(2)O)]·H(2)O}(n), the Pb(II) ion is chelated by two carboxyl-ate groups of 3-hy-droxy-benzoate (HB) anions, and coordinated by one isonicotinamide mol-ecule; a carboxyl-ate O atom and a hy-droxy O atom from adjacent HB anions bridge the Pb(II) ion to form polymeric chains along [100], in which the Pb(II) ion is in an irregular seven-coordination geometry. The carboxyl-ate groups of the HB ions are slightly twisted away from the attached benzene rings by 2.84 (15) and 4.8 (2)°. The planes of the two benzene rings of the HB ions are oriented with respect to each other at a dihedral angle of 84.41 (8)°. In the crystal, adjacent polymeric chains inter-act via O-H⋯O, N-H⋯O and weak C-H⋯O hydrogen bonds. The solvent water mol-ecule links with the polymeric chains via O-H⋯O hydrogen bonding. π-π stacking between the benzene and pyridine rings and between the benzene rings [centroid-centroid distances = 3.731 (2) and 3.353 (2) Å] are present in the crystal.

Related literature

For niacin, see: Krishnamachari (1974 ▶). For N,N-diethyl­nicotinamide, see: Bigoli et al. (1972 ▶). For related structures, see: Greenaway et al. (1984 ▶); Hökelek & Necefoğlu (1996 ▶); Hökelek, Yılmaz et al. (2009 ▶); Hökelek, Dal et al. (2009a ▶,b ▶,c ▶, 2010 ▶); Hökelek, Süzen et al. (2010 ▶); Hökelek et al. (2011 ▶).

Experimental

Crystal data

[Pb(C7H5O3)2(C6H6N2O)]·H2O

M = 621.56

Triclinic,

a = 7.3626 (2) Å

b = 12.1382 (3) Å

c = 12.1789 (3) Å

α = 67.165 (2)°

β = 74.192 (3)°

γ = 88.921 (3)°

V = 960.53 (5) Å3

Z = 2

Mo Kα radiation

μ = 8.84 mm−1

T = 100 K

0.26 × 0.14 × 0.13 mm

Data collection

Bruker Kappa APEXII CCD area-detector diffractometer

Absorption correction: multi-scan (SADABS; Bruker, 2005 ▶) T min = 0.395, T max = 0.603

17040 measured reflections

4783 independent reflections

4652 reflections with I > 2σ(I)

R int = 0.032

Refinement

R[F 2 > 2σ(F 2)] = 0.017

wR(F 2) = 0.050

S = 1.19

4783 reflections

304 parameters

4 restraints

H atoms treated by a mixture of independent and constrained refinement

Δρmax = 0.94 e Å−3

Δρmin = −1.27 e Å−3

Data collection: APEX2 (Bruker, 2007 ▶); cell refinement: SAINT (Bruker, 2007 ▶); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008 ▶); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008 ▶); molecular graphics: ORTEP-3 for Windows (Farrugia, 1997 ▶); software used to prepare material for publication: WinGX (Farrugia, 1999 ▶) and PLATON (Spek, 2009 ▶).

Crystal structure: contains datablock(s) I, global. DOI: 10.1107/S1600536812004357/xu5463sup1.cif

Structure factors: contains datablock(s) I. DOI: 10.1107/S1600536812004357/xu5463Isup2.hkl

Additional supplementary materials: crystallographic information; 3D view; checkCIF report

[Pb(C7H5O3)2(C6H6N2O)]·H2O	Z = 2
Mr = 621.56	F(000) = 596
Triclinic, P1	Dx = 2.149 Mg m−3
Hall symbol: -P 1	Mo Kα radiation, λ = 0.71073 Å
a = 7.3626 (2) Å	Cell parameters from 9959 reflections
b = 12.1382 (3) Å	θ = 2.9–28.5°
c = 12.1789 (3) Å	µ = 8.84 mm−1
α = 67.165 (2)°	T = 100 K
β = 74.192 (3)°	Block, yellow
γ = 88.921 (3)°	0.26 × 0.14 × 0.13 mm
V = 960.53 (5) Å3

Bruker Kappa APEXII CCD area-detector diffractometer	4783 independent reflections
Radiation source: fine-focus sealed tube	4652 reflections with I > 2σ(I)
Graphite monochromator	Rint = 0.032
φ and ω scans	θmax = 28.5°, θmin = 1.9°
Absorption correction: multi-scan (SADABS; Bruker, 2005)	h = −9→9
Tmin = 0.395, Tmax = 0.603	k = −16→16
17040 measured reflections	l = −16→16

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)] = 0.017	Hydrogen site location: inferred from neighbouring sites
wR(F2) = 0.050	H atoms treated by a mixture of independent and constrained refinement
S = 1.19	w = 1/[σ2(Fo2) + (0.0228P)2 + 0.6812P] where P = (Fo2 + 2Fc2)/3
4783 reflections	(Δ/σ)max = 0.001
304 parameters	Δρmax = 0.94 e Å−3
4 restraints	Δρmin = −1.27 e Å−3

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
Pb1	0.030913 (12)	0.835470 (8)	0.138812 (8)	0.00786 (4)
O1	0.1928 (3)	0.62307 (19)	0.21830 (19)	0.0120 (4)
O2	0.2876 (3)	0.79500 (18)	0.21917 (19)	0.0119 (4)
O3	0.8367 (3)	0.7102 (2)	0.40132 (19)	0.0124 (4)
H31	0.765 (6)	0.748 (4)	0.440 (4)	0.024 (10)*
O4	0.0065 (3)	0.98903 (19)	0.25722 (19)	0.0136 (4)
O5	0.1523 (3)	1.03718 (18)	0.05741 (18)	0.0110 (4)
O6	0.0703 (3)	1.3836 (2)	0.3029 (2)	0.0136 (4)
H61	0.111 (7)	1.442 (5)	0.294 (5)	0.042 (15)*
O7	0.6149 (3)	0.7967 (2)	−0.4465 (2)	0.0172 (5)
O8	−0.1509 (3)	0.1982 (2)	0.5265 (2)	0.0168 (4)
H81	−0.066 (6)	0.260 (3)	0.473 (4)	0.057 (16)*
H82	−0.127 (8)	0.204 (5)	0.590 (4)	0.062 (17)*
N1	0.2801 (3)	0.8592 (2)	−0.0646 (2)	0.0106 (5)
N2	0.7553 (4)	0.9791 (3)	−0.4941 (2)	0.0144 (5)
H21	0.830 (5)	0.981 (4)	−0.561 (3)	0.039 (13)*
H22	0.769 (6)	1.035 (3)	−0.471 (4)	0.028 (11)*
C1	0.3015 (4)	0.6828 (3)	0.2424 (2)	0.0088 (5)
C2	0.4561 (4)	0.6274 (2)	0.2976 (2)	0.0090 (5)
C3	0.5721 (4)	0.6960 (3)	0.3251 (2)	0.0093 (5)
H3	0.5529	0.7759	0.3098	0.011*
C4	0.7168 (4)	0.6450 (3)	0.3754 (2)	0.0096 (5)
C5	0.7482 (4)	0.5263 (3)	0.3954 (2)	0.0109 (5)
H5	0.8481	0.4931	0.4262	0.013*
C6	0.6310 (4)	0.4575 (3)	0.3697 (3)	0.0112 (5)
H6	0.6502	0.3775	0.3853	0.013*
C7	0.4846 (4)	0.5077 (3)	0.3203 (2)	0.0096 (5)
H7	0.4063	0.4617	0.3026	0.012*
C8	0.0990 (4)	1.0640 (3)	0.1532 (3)	0.0091 (5)
C9	0.1525 (4)	1.1908 (3)	0.1322 (3)	0.0091 (5)
C10	0.0883 (4)	1.2299 (3)	0.2284 (3)	0.0094 (5)
H10	0.0149	1.1770	0.3063	0.011*
C11	0.1341 (4)	1.3476 (3)	0.2076 (3)	0.0103 (5)
C12	0.2455 (5)	1.4274 (3)	0.0911 (3)	0.0178 (6)
H12	0.2756	1.5067	0.0771	0.021*
C13	0.3106 (5)	1.3867 (3)	−0.0033 (3)	0.0222 (7)
H13	0.3856	1.4392	−0.0808	0.027*
C14	0.2653 (4)	1.2688 (3)	0.0164 (3)	0.0154 (6)
H14	0.3101	1.2422	−0.0473	0.019*
C15	0.4005 (4)	0.9580 (3)	−0.1397 (3)	0.0118 (5)
H15	0.4060	1.0194	−0.1128	0.014*
C16	0.5163 (4)	0.9719 (3)	−0.2555 (3)	0.0118 (5)
H16	0.5959	1.0422	−0.3058	0.014*
C17	0.5126 (4)	0.8796 (3)	−0.2960 (3)	0.0094 (5)
C18	0.3894 (4)	0.7765 (3)	−0.2170 (3)	0.0127 (5)
H18	0.3832	0.7127	−0.2406	0.015*
C19	0.2766 (4)	0.7705 (3)	−0.1032 (3)	0.0116 (5)
H19	0.1946	0.7016	−0.0512	0.014*
C20	0.6331 (4)	0.8831 (3)	−0.4197 (3)	0.0110 (5)

	U11	U22	U33	U12	U13	U23
Pb1	0.00963 (6)	0.00600 (6)	0.00604 (6)	−0.00059 (4)	−0.00152 (4)	−0.00083 (4)
O1	0.0153 (9)	0.0070 (10)	0.0142 (10)	−0.0003 (7)	−0.0053 (8)	−0.0041 (8)
O2	0.0148 (9)	0.0063 (10)	0.0158 (10)	0.0004 (7)	−0.0071 (8)	−0.0038 (8)
O3	0.0131 (9)	0.0132 (11)	0.0127 (10)	−0.0004 (8)	−0.0023 (8)	−0.0078 (9)
O4	0.0191 (10)	0.0097 (11)	0.0091 (9)	−0.0018 (8)	−0.0011 (8)	−0.0024 (8)
O5	0.0159 (9)	0.0092 (10)	0.0087 (9)	0.0010 (7)	−0.0028 (7)	−0.0051 (8)
O6	0.0170 (10)	0.0095 (11)	0.0140 (10)	−0.0022 (8)	0.0014 (8)	−0.0082 (9)
O7	0.0193 (10)	0.0158 (12)	0.0166 (11)	−0.0039 (8)	0.0024 (8)	−0.0113 (9)
O8	0.0231 (11)	0.0151 (12)	0.0097 (10)	−0.0060 (9)	−0.0013 (8)	−0.0042 (9)
N1	0.0095 (10)	0.0100 (12)	0.0088 (11)	0.0013 (9)	0.0002 (8)	−0.0019 (9)
N2	0.0185 (12)	0.0136 (13)	0.0096 (12)	−0.0024 (10)	0.0021 (9)	−0.0071 (10)
C1	0.0103 (11)	0.0079 (13)	0.0056 (12)	−0.0003 (9)	0.0005 (9)	−0.0019 (10)
C2	0.0117 (12)	0.0067 (13)	0.0059 (12)	−0.0004 (9)	−0.0002 (9)	−0.0013 (10)
C3	0.0122 (12)	0.0058 (13)	0.0068 (12)	−0.0008 (9)	0.0012 (9)	−0.0017 (10)
C4	0.0101 (12)	0.0117 (14)	0.0047 (11)	−0.0016 (10)	0.0007 (9)	−0.0027 (10)
C5	0.0124 (12)	0.0118 (14)	0.0058 (12)	0.0014 (10)	−0.0003 (9)	−0.0023 (11)
C6	0.0157 (13)	0.0072 (13)	0.0091 (12)	0.0014 (10)	−0.0017 (10)	−0.0027 (11)
C7	0.0121 (12)	0.0075 (13)	0.0083 (12)	−0.0011 (10)	−0.0011 (9)	−0.0033 (10)
C8	0.0087 (11)	0.0084 (13)	0.0094 (12)	0.0001 (9)	−0.0023 (9)	−0.0029 (11)
C9	0.0109 (12)	0.0067 (13)	0.0088 (12)	−0.0001 (9)	−0.0031 (10)	−0.0020 (10)
C10	0.0111 (12)	0.0063 (13)	0.0072 (12)	−0.0012 (10)	−0.0011 (9)	0.0001 (10)
C11	0.0113 (12)	0.0105 (14)	0.0102 (13)	0.0017 (10)	−0.0033 (10)	−0.0051 (11)
C12	0.0259 (15)	0.0104 (15)	0.0129 (14)	−0.0044 (12)	−0.0012 (12)	−0.0030 (12)
C13	0.0323 (17)	0.0158 (17)	0.0103 (14)	−0.0101 (13)	0.0053 (12)	−0.0039 (13)
C14	0.0206 (14)	0.0138 (15)	0.0094 (13)	−0.0041 (11)	−0.0001 (11)	−0.0046 (12)
C15	0.0135 (12)	0.0093 (14)	0.0128 (13)	0.0011 (10)	−0.0022 (10)	−0.0058 (11)
C16	0.0112 (12)	0.0094 (14)	0.0113 (13)	−0.0018 (10)	−0.0002 (10)	−0.0021 (11)
C17	0.0092 (11)	0.0096 (14)	0.0087 (12)	0.0005 (10)	−0.0017 (10)	−0.0033 (11)
C18	0.0132 (12)	0.0109 (14)	0.0145 (14)	0.0007 (10)	−0.0020 (10)	−0.0069 (12)
C19	0.0136 (12)	0.0068 (13)	0.0119 (13)	−0.0019 (10)	−0.0019 (10)	−0.0022 (11)
C20	0.0113 (12)	0.0107 (14)	0.0097 (13)	0.0004 (10)	−0.0014 (10)	−0.0037 (11)

Pb1—N1	2.564 (2)	C5—C4	1.390 (4)
Pb1—O1	2.753 (2)	C5—C6	1.386 (4)
Pb1—O2	2.317 (2)	C5—H5	0.9300
Pb1—O3i	2.899 (2)	C6—H6	0.9300
Pb1—O4	2.742 (2)	C7—C2	1.393 (4)
Pb1—O5	2.344 (2)	C7—C6	1.393 (4)
Pb1—O5ii	2.954 (2)	C7—H7	0.9300
O1—C1	1.253 (3)	C9—C14	1.390 (4)
O2—C1	1.287 (3)	C8—C9	1.501 (4)
O3—C4	1.370 (3)	C10—C9	1.394 (4)
O3—H31	0.86 (4)	C10—H10	0.9300
O4—C8	1.247 (3)	C11—C10	1.382 (4)
O5—C8	1.288 (3)	C11—C12	1.397 (4)
O6—C11	1.361 (3)	C12—C13	1.389 (4)
O6—H61	0.73 (5)	C12—H12	0.9300
O7—C20	1.234 (4)	C13—C14	1.387 (4)
O8—H81	0.89 (2)	C13—H13	0.9300
O8—H82	0.87 (2)	C14—H14	0.9300
N1—C15	1.344 (4)	C15—H15	0.9300
N1—C19	1.334 (4)	C16—C15	1.382 (4)
N2—C20	1.328 (4)	C16—H16	0.9300
N2—H21	0.844 (19)	C17—C16	1.391 (4)
N2—H22	0.843 (19)	C17—C18	1.396 (4)
C1—C2	1.495 (4)	C17—C20	1.510 (4)
C3—C2	1.390 (4)	C18—H18	0.9300
C3—C4	1.390 (4)	C19—C18	1.383 (4)
C3—H3	0.9300	C19—H19	0.9300
O2—Pb1—O1	51.00 (6)	C2—C7—H7	120.2
O2—Pb1—O4	77.71 (7)	C6—C7—H7	120.2
O2—Pb1—O5	85.33 (7)	O4—C8—O5	121.9 (3)
O2—Pb1—N1	83.32 (7)	O4—C8—C9	121.8 (2)
O4—Pb1—O1	121.06 (6)	O5—C8—C9	116.3 (2)
O5—Pb1—O1	132.63 (6)	C10—C9—C8	120.0 (2)
O5—Pb1—O4	50.94 (6)	C14—C9—C8	119.6 (2)
O5—Pb1—N1	77.24 (7)	C14—C9—C10	120.4 (3)
N1—Pb1—O1	79.96 (7)	C11—C10—C9	119.7 (3)
N1—Pb1—O4	125.57 (7)	C11—C10—H10	120.1
C1—O1—Pb1	83.85 (16)	C9—C10—H10	120.1
C1—O2—Pb1	103.41 (16)	O6—C11—C10	118.7 (3)
C4—O3—H31	105 (3)	O6—C11—C12	120.8 (3)
C8—O4—Pb1	84.76 (16)	C10—C11—C12	120.5 (3)
C8—O5—Pb1	102.42 (17)	C11—C12—H12	120.5
C11—O6—H61	116 (4)	C13—C12—C11	119.1 (3)
H82—O8—H81	92 (5)	C13—C12—H12	120.5
C15—N1—Pb1	124.95 (18)	C12—C13—H13	119.5
C19—N1—Pb1	116.64 (18)	C14—C13—C12	120.9 (3)
C19—N1—C15	118.1 (2)	C14—C13—H13	119.5
C20—N2—H21	120 (3)	C9—C14—H14	120.3
C20—N2—H22	120 (3)	C13—C14—C9	119.3 (3)
H22—N2—H21	119 (4)	C13—C14—H14	120.3
O1—C1—O2	121.7 (2)	N1—C15—C16	122.6 (3)
O1—C1—C2	121.4 (2)	N1—C15—H15	118.7
O2—C1—C2	116.9 (2)	C16—C15—H15	118.7
C3—C2—C1	119.8 (2)	C15—C16—C17	119.3 (3)
C3—C2—C7	120.2 (3)	C15—C16—H16	120.3
C7—C2—C1	120.0 (2)	C17—C16—H16	120.3
C2—C3—H3	120.0	C16—C17—C18	117.9 (2)
C4—C3—C2	120.0 (3)	C16—C17—C20	124.5 (3)
C4—C3—H3	120.0	C18—C17—C20	117.6 (3)
O3—C4—C3	121.7 (3)	C17—C18—H18	120.5
O3—C4—C5	118.3 (2)	C19—C18—C17	119.1 (3)
C3—C4—C5	119.9 (3)	C19—C18—H18	120.5
C4—C5—H5	119.9	N1—C19—C18	123.0 (3)
C6—C5—C4	120.1 (3)	N1—C19—H19	118.5
C6—C5—H5	119.9	C18—C19—H19	118.5
C5—C6—C7	120.2 (3)	O7—C20—N2	123.1 (3)
C5—C6—H6	119.9	O7—C20—C17	118.7 (3)
C7—C6—H6	119.9	N2—C20—C17	118.2 (3)
C2—C7—C6	119.6 (3)
O2—Pb1—O1—C1	0.82 (14)	O1—C1—C2—C7	1.7 (4)
O4—Pb1—O1—C1	−35.34 (17)	O2—C1—C2—C3	2.1 (4)
O5—Pb1—O1—C1	28.21 (18)	O2—C1—C2—C7	−177.3 (2)
N1—Pb1—O1—C1	90.32 (16)	C4—C3—C2—C7	−0.1 (4)
O1—Pb1—O2—C1	−0.81 (14)	C4—C3—C2—C1	−179.5 (2)
O4—Pb1—O2—C1	148.04 (17)	C2—C3—C4—O3	178.6 (2)
O5—Pb1—O2—C1	−160.96 (16)	C2—C3—C4—C5	1.6 (4)
N1—Pb1—O2—C1	−83.29 (16)	C6—C5—C4—O3	−179.6 (2)
O1—Pb1—O4—C8	122.11 (16)	C6—C5—C4—C3	−2.4 (4)
O2—Pb1—O4—C8	94.12 (16)	C4—C5—C6—C7	1.8 (4)
O5—Pb1—O4—C8	0.14 (15)	C6—C7—C2—C1	178.8 (2)
N1—Pb1—O4—C8	21.70 (19)	C6—C7—C2—C3	−0.6 (4)
O1—Pb1—O5—C8	−99.11 (17)	C2—C7—C6—C5	−0.3 (4)
O2—Pb1—O5—C8	−78.09 (16)	O4—C8—C9—C10	−4.2 (4)
O4—Pb1—O5—C8	−0.13 (15)	O4—C8—C9—C14	176.1 (3)
N1—Pb1—O5—C8	−162.28 (17)	O5—C8—C9—C10	175.1 (2)
O1—Pb1—N1—C15	−132.2 (2)	O5—C8—C9—C14	−4.5 (4)
O1—Pb1—N1—C19	54.3 (2)	C8—C9—C14—C13	178.5 (3)
O2—Pb1—N1—C15	−80.7 (2)	C10—C9—C14—C13	−1.2 (5)
O2—Pb1—N1—C19	105.8 (2)	C11—C10—C9—C14	1.3 (4)
O4—Pb1—N1—C15	−11.0 (3)	C11—C10—C9—C8	−178.4 (2)
O4—Pb1—N1—C19	175.51 (18)	O6—C11—C10—C9	−179.8 (2)
O5—Pb1—N1—C15	6.0 (2)	C12—C11—C10—C9	−0.5 (4)
O5—Pb1—N1—C19	−167.5 (2)	O6—C11—C12—C13	178.9 (3)
Pb1—O1—C1—O2	−1.3 (2)	C10—C11—C12—C13	−0.4 (5)
Pb1—O1—C1—C2	179.7 (2)	C11—C12—C13—C14	0.5 (5)
Pb1—O2—C1—O1	1.6 (3)	C12—C13—C14—C9	0.3 (5)
Pb1—O2—C1—C2	−179.40 (18)	C17—C16—C15—N1	−1.4 (4)
Pb1—O4—C8—O5	−0.2 (2)	C18—C17—C16—C15	0.5 (4)
Pb1—O4—C8—C9	179.1 (2)	C20—C17—C16—C15	−179.4 (3)
Pb1—O5—C8—O4	0.3 (3)	C16—C17—C18—C19	0.3 (4)
Pb1—O5—C8—C9	−179.06 (19)	C20—C17—C18—C19	−179.8 (3)
Pb1—N1—C15—C16	−172.0 (2)	C16—C17—C20—O7	−178.6 (3)
C19—N1—C15—C16	1.5 (4)	C16—C17—C20—N2	1.9 (4)
Pb1—N1—C19—C18	173.3 (2)	C18—C17—C20—O7	1.5 (4)
C15—N1—C19—C18	−0.7 (4)	C18—C17—C20—N2	−177.9 (3)
O1—C1—C2—C3	−178.9 (2)	N1—C19—C18—C17	−0.2 (4)

D—H···A	D—H	H···A	D···A	D—H···A
N2—H21···O4iii	0.84 (4)	2.21 (4)	3.046 (3)	175 (4)
N2—H22···O8iv	0.85 (4)	2.06 (4)	2.880 (5)	162 (4)
O3—H31···O7v	0.86 (5)	1.81 (5)	2.646 (3)	166 (4)
O6—H61···O1vi	0.73 (6)	2.05 (6)	2.755 (4)	161 (6)
O8—H81···O6vii	0.89 (4)	2.02 (4)	2.846 (3)	154 (4)
O8—H82···O2viii	0.87 (5)	2.31 (5)	3.018 (3)	139 (5)
O8—H82···O3ix	0.87 (5)	2.44 (6)	3.054 (3)	128 (4)
C12—H12···O1vi	0.93	2.57	3.269 (4)	132
C15—H15···O5	0.93	2.46	3.060 (4)	122
C16—H16···O8iv	0.93	2.51	3.413 (4)	165

Table 1

Selected bond lengths (Å)

Pb1—N1	2.564 (2)
Pb1—O1	2.753 (2)
Pb1—O2	2.317 (2)
Pb1—O3i	2.899 (2)
Pb1—O4	2.742 (2)
Pb1—O5	2.344 (2)
Pb1—O5ii	2.954 (2)

Symmetry codes: (i) ; (ii) .

Table 2

Hydrogen-bond geometry (Å, °)

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N2—H21⋯O4iii	0.84 (4)	2.21 (4)	3.046 (3)	175 (4)
N2—H22⋯O8iv	0.85 (4)	2.06 (4)	2.880 (5)	162 (4)
O3—H31⋯O7v	0.86 (5)	1.81 (5)	2.646 (3)	166 (4)
O6—H61⋯O1vi	0.73 (6)	2.05 (6)	2.755 (4)	161 (6)
O8—H81⋯O6vii	0.89 (4)	2.02 (4)	2.846 (3)	154 (4)
O8—H82⋯O2viii	0.87 (5)	2.31 (5)	3.018 (3)	139 (5)
O8—H82⋯O3ix	0.87 (5)	2.44 (6)	3.054 (3)	128 (4)
C12—H12⋯O1vi	0.93	2.57	3.269 (4)	132
C15—H15⋯O5	0.93	2.46	3.060 (4)	122
C16—H16⋯O8iv	0.93	2.51	3.413 (4)	165

Symmetry codes: (iii) ; (iv) ; (v) ; (vi) ; (vii) ; (viii) ; (ix) .