catena-Poly[lead(II)-bis­(μ2-pyridazine-3-carboxyl­ato-κ3N2,O:O)]

Starosta, W.; Leciejewicz, J.

doi:10.1107/S1600536810002199

Volume 66
Part 2
Page m192
February 2010

Received 14 January 2010
Accepted 18 January 2010
Online 23 January 2010

Key indicators
Single-crystal X-ray study
T = 293 K
Mean (C-C) = 0.013 Å
R = 0.048
wR = 0.137
Data-to-parameter ratio = 19.6
Details

catena-Poly[lead(II)-bis(₂-pyridazine-3-carboxylato-³N²,O:O)]

Wojciech Starosta ^a and Janusz Leciejewicz ^a ^*

^aInstitute of Nuclear Chemistry and Technology, ul.Dorodna 16, 03-195 Warszawa, Poland
Correspondence e-mail: j.leciejewicz@ichtj.waw.pl

In the title structure, [Pb(C₅H₃N₂O₂)₂]_n, the Pb^II ion is six-coordinated by two pyridazine-3-carboxylate ligands via N and O atoms, with the carboxylato O atoms acting as bidentate and bridging adjacent Pb^II ions, giving rise to catenated molecular ribbons propagating along the a-axis direction. The ribbons are connected by C-HO hydrogen bonds and van der Waals interactions.

Related literature

For the structures of 3d-metal and Mg(II) complexes with pyridazine-3-carboxylate and water ligands containing monomeric molecules with an octahedral enviroment for the metal ion, see: Ardiwinata et al. (1989), Gryz et al. (2003, 2004, 2006). Centrosymmetric dimeric molecules, each with a different bridging mode, have been reported in the structure of a calcium(II) complex (Starosta & Leciejewicz, 2007), a uranyl complex (Leciejewicz & Starosta, 2009) as well as in the structure of a lead(II) complex with pyridazine-4-carboxylate ligands (Starosta & Leciejewicz, 2009). For the structure of pyridazine-3-carboxylic acid hydrochloride, see: Gryz et al. (2003).

Experimental

Crystal data

[Pb(C₅H₃N₂O₂)₂]
M_r = 453.38
Monoclinic, P 2₁ /n
a = 8.0336 (16) Å
b = 10.386 (2) Å
c = 13.766 (3) Å
= 93.72 (3)°
V = 1146.2 (4) Å³
Z = 4
Mo K radiation
= 14.74 mm^-1
T = 293 K
0.33 × 0.09 × 0.08 mm

Data collection

Kuma KM-4 four-circle diffractometer
Absorption correction: analytical (CrysAlis RED; Oxford Diffraction, 2008 $[Oxford Diffraction (2008). CrysAlis RED. Oxford Diffraction Ltd, Yarnton, England.]$ ) T_min = 0.284, T_max = 0.379
3587 measured reflections
3365 independent reflections
2119 reflections with I > 2(I)
R_int = 0.040
3 standard reflections every 200 reflections intensity decay: 1.3%

Refinement

R[F² > 2(F²)] = 0.048
wR(F²) = 0.137
S = 1.05
3365 reflections
172 parameters
H-atom parameters constrained
_max = 6.57 e Å^-3
_min = -4.30 e Å^-3

Table 1
Selected bond lengths (Å)

Pb1-O21	2.492 (7)
Pb1-O11	2.569 (6)
Pb1-N12	2.645 (7)
Pb1-O21ⁱ	2.662 (7)
Pb1-O11ⁱⁱ	2.669 (6)
Pb1-N22	2.672 (6)
Symmetry codes: (i) -x+1, -y+2, -z+2; (ii) -x, -y+2, -z+2.

Table 2
Hydrogen-bond geometry (Å, °)

D-HA	D-H	HA	DA	D-HA
C16-H16O12ⁱⁱⁱ	0.93	2.35	3.182 (12)	149
C14-H14O21^iv	0.93	2.76	3.489 (10)	136
C26-H26O22^v	0.93	2.42	3.201 (12)	142
C15-H15O11^vi	0.93	2.40	3.266 (10)	155
C25-H25O12^vii	0.93	2.42	3.328 (12)	165
Symmetry codes: (iii) x+1, y, z; (iv) $[x-{\script{1\over 2}}, -y+{\script{3\over 2}}, z-{\script{1\over 2}}]$ ; (v) x-1, y, z; (vi) $[-x+{\script{1\over 2}}, y-{\script{1\over 2}}, -z+{\script{3\over 2}}]$ ; (vii) -x, -y+1, -z+2.

Data collection: KM-4 Software (Kuma, 1996 $[Kuma (1996). KM-4 Software. Kuma Diffraction Ltd, Wroclaw, Poland.]$ ); cell refinement: KM-4 Software; data reduction: DATAPROC (Kuma, 2001 $[Kuma (2001). DATAPROC. Kuma Diffraction Ltd, Wroclaw, Poland.]$ ); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXL97.

Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: KP2247 ).

References

Ardiwinata, E. S., Craig, D. C. & Philips, D. J. (1989). Inorg. Chim. Acta, 166, 233-238.
Gryz, M., Starosta, W. & Leciejewicz, J. (2004). Acta Cryst. E60, m1481-m1483.
Gryz, M., Starosta, W. & Leciejewicz, J. (2006). Acta Cryst. E62, m123-m124.
Gryz, M., Starosta, W., Ptasiewicz-Bak, H. & Leciejewicz, J. (2003). J. Coord. Chem. 56, 1505-1511.
Kuma (1996). KM-4 Software. Kuma Diffraction Ltd, Wroclaw, Poland.
Kuma (2001). DATAPROC. Kuma Diffraction Ltd, Wroclaw, Poland.
Leciejewicz, J. & Starosta, W. (2009). Acta Cryst. E65, m94.
Oxford Diffraction (2008). CrysAlis RED. Oxford Diffraction Ltd, Yarnton, England.
Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.
Starosta, W. & Leciejewicz, J. (2007). Acta Cryst. E63, m1662-m1663.
Starosta, W. & Leciejewicz, J. (2009). Acta Cryst. E65, m1291.

metal-organic compounds

catena-Poly[lead(II)-bis(2-pyridazine-3-carboxylato-3N2,O:O)]