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Volume 70 
Part 1 
Page m17  
January 2014  

Received 25 September 2013
Accepted 2 December 2013
Online 14 December 2013

Key indicators
Single-crystal X-ray study
T = 150 K
Mean [sigma](C-C) = 0.004 Å
R = 0.023
wR = 0.068
Data-to-parameter ratio = 14.2
Details
Open access

trans-Di­chlorido­bis­(pyridazine-[kappa]N)palladium(II)

aDépartement de Chimie, Université de Montréal, Pavillon J.-A. Bombardier, 5155 Decelles Avenue, Montréal, Québec, H3T 2B1, Canada
Correspondence e-mail: baptiste.laramee-milette@umontreal.ca

The title compound, [PdCl2(C4H4N2)2], contains two crystallographically unique complexes; the PdII atom lies on an inversion center in both cases. The two pyridazine units bonded to the PdII atom are thus coplanar although dihedral angles within each complex are different. In one complex, the angle between the ring plane and Pd-Cl bond is almost perpendicular [89.4 (1)°], while the other is tilted with an angle of 60.0 (1)°. In the crystal, weak C...H-N hydrogen bonds and C...H-Cl inter­actions connect the two independent complex mol­ecules.

Related literature

For related pyridazine copper, nickel, silver and rhenium metal complexes, see: Otieno et al. (1995[Otieno, T., Rettig, S. J., Thompson, R. C. & Trotter, J. (1995). Inorg. Chem. 34, 1718-1725.]); Cano et al. (2000[Cano, J., De Munno, G., Lloret, F. & Julve, M. (2000). Inorg. Chem. 39, 1611-1614.]); Degtyarenko et al. (2008[Degtyarenko, A. S., Solntsev, P. V., Krautscheid, H., Rusanov, E. B., Chernega, A. N. & Domasevitch, K. V. (2008). New J. Chem. 32, 1910-1918.]) and Raimondi et al. (2012[Raimondi, A., Panigati, M., Maggioni, D., D'Alfonso, L., Mercandelli, P., Mussini, P. & D'Alfonso, G. (2012). Inorg. Chem. 51, 2966-2975.]), respectively.

[Scheme 1]

Experimental

Crystal data
  • [PdCl2(C4H4N2)2]

  • Mr = 337.48

  • Triclinic, [P \overline 1]

  • a = 7.9910 (1) Å

  • b = 8.4273 (1) Å

  • c = 9.6172 (2) Å

  • [alpha] = 84.614 (1)°

  • [beta] = 67.682 (1)°

  • [gamma] = 63.134 (1)°

  • V = 532.09 (2) Å3

  • Z = 2

  • Cu K[alpha] radiation

  • [mu] = 18.45 mm-1

  • T = 150 K

  • 0.08 × 0.06 × 0.06 mm

Data collection
  • Bruker APEXII CCD diffractometer

  • Absorption correction: multi-scan (SADABS; Sheldrick, 1996[Sheldrick, G. M. (1996). SADABS. University of Göttingen, Germany.]) Tmin = 0.216, Tmax = 0.260

  • 13678 measured reflections

  • 1971 independent reflections

  • 1957 reflections with I > 2[sigma](I)

  • Rint = 0.018

Refinement
  • R[F2 > 2[sigma](F2)] = 0.023

  • wR(F2) = 0.068

  • S = 1.07

  • 1971 reflections

  • 139 parameters

  • H-atom parameters constrained

  • [Delta][rho]max = 0.97 e Å-3

  • [Delta][rho]min = -0.75 e Å-3

Table 1
Hydrogen-bond geometry (Å, °)

D-H...A D-H H...A D...A D-H...A
C4-H4...N4i 0.95 2.55 3.438 (3) 155
C3-H3...Cl2ii 0.95 2.94 3.569 (3) 125
C1-H1...Cl2iii 0.95 2.92 3.787 (3) 153
C8-H8...Cl1iv 0.95 2.82 3.529 (3) 132
Symmetry codes: (i) -x+1, -y+1, -z+2; (ii) x, y+1, z+1; (iii) x, y+1, z; (iv) x, y, z-1.

Data collection: APEX2 (Bruker, 2011[Bruker (2011). APEX2 and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA.]); cell refinement: SAINT (Bruker, 2011[Bruker (2011). 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: SHELXTL (Sheldrick, 2008[Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.]); software used to prepare material for publication: publCIF (Westrip, 2010[Westrip, S. P. (2010). J. Appl. Cryst. 43, 920-925.]).


Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: NK2214 ).


Acknowledgements

The authors thank the Department of Chemistry of the Université de Montréal for access to the CCD facility. We thank Thierry Maris for useful crystallographic discussions. We are grateful to the Université de Montréal for financial assistance.

References

Bruker (2011). APEX2 and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA.
Cano, J., De Munno, G., Lloret, F. & Julve, M. (2000). Inorg. Chem. 39, 1611-1614.  [Web of Science] [CSD] [CrossRef] [PubMed] [ChemPort]
Degtyarenko, A. S., Solntsev, P. V., Krautscheid, H., Rusanov, E. B., Chernega, A. N. & Domasevitch, K. V. (2008). New J. Chem. 32, 1910-1918.  [Web of Science] [CSD] [CrossRef] [ChemPort]
Otieno, T., Rettig, S. J., Thompson, R. C. & Trotter, J. (1995). Inorg. Chem. 34, 1718-1725.  [CSD] [CrossRef] [ChemPort] [Web of Science]
Raimondi, A., Panigati, M., Maggioni, D., D'Alfonso, L., Mercandelli, P., Mussini, P. & D'Alfonso, G. (2012). Inorg. Chem. 51, 2966-2975.  [Web of Science] [CSD] [CrossRef] [ChemPort] [PubMed]
Sheldrick, G. M. (1996). SADABS. University of Göttingen, Germany.
Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.  [CrossRef] [ChemPort] [IUCr Journals]
Westrip, S. P. (2010). J. Appl. Cryst. 43, 920-925.  [Web of Science] [CrossRef] [ChemPort] [IUCr Journals]


Acta Cryst (2014). E70, m17  [ doi:10.1107/S1600536813032716 ]

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