Bis(benzonitrile)palladium dichloride

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Bis(benzonitrile)palladium dichloride
Other names
palladium dichloride sis(benzonitrile), bis(benzonitrile)dichloropalladium
3D model (JSmol)
ECHA InfoCard 100.034.608 Edit this at Wikidata
EC Number
  • 238-085-3
  • InChI=1S/2C7H5N.2ClH.Pd/c2*8-6-7-4-2-1-3-5-7;;;/h2*1-5H;2*1H;/q;;;;+2/p-2
  • ionic form: C1=CC=C(C=C1)C#N.C1=CC=C(C=C1)C#N.Cl[Pd]Cl
  • coordination form: Cl[Pd-2](Cl)([N+]#Cc0ccccc0)[N+]#Cc0ccccc0
Molar mass 383.57 g·mol−1
Appearance yellow-brown
Melting point 129–130 °C (264–266 °F; 402–403 K)
GHS labelling:
GHS06: ToxicGHS07: Exclamation mark
H301, H311, H330
P260, P261, P264, P270, P271, P273, P280, P284, P301+P310, P301+P312, P302+P352, P304+P312, P304+P340, P305+P351+P338, P310, P311, P312, P320, P321, P322, P330, P332+P313, P337+P313, P361, P362, P363, P403+P233, P405, P501
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Bis(benzonitrile)palladium dichloride is the coordination complex with the formula PdCl2(NCC6H5)2. It is the adduct of two benzonitrile (PhCN) ligands with palladium(II) chloride. It is a yellow-brown solid that is soluble in organic solvents. The compound is a reagent and a precatalyst for reactions that require soluble Pd(II).[1] A closely related compound is bis(acetonitrile)palladium dichloride.

The complex is prepared by dissolving PdCl2 in warm benzonitrile.[2] The PhCN ligands are labile, and the complex reverts to PdCl2 in noncoordinating solvents. According to X-ray crystallography, the two PhCN ligands are mutually trans.[3]

Sample of PdCl2(PhCN)2


  1. ^ Jiro Tsuji, Hao Guo, Shengming Ma, Daniela Sustac Roman (2015). "Bis(benzonitrile)dichloropalladium(II)". e-EROS Encyclopedia of Reagents for Organic Synthesis. pp. 1–27. doi:10.1002/047084289X.rb101.pub3. ISBN 9780470842898.{{cite encyclopedia}}: CS1 maint: uses authors parameter (link)
  2. ^ Gordon K. Anderson, Minren Lin (1990). "Bis(Benzonitrile)Dichloro Complexes of Palladium and Platinum". Inorganic Syntheses. Inorg. Synth. Inorganic Syntheses. Vol. 28. pp. 60–63. doi:10.1002/9780470132593.ch13. ISBN 9780470132593.
  3. ^ Olmstead, M. M.; Wei, P.-P.; Ginwalla, A. S.; Balch, A. L. (2000). "Bis(Benzonitrile)Palladium(II) Dihalides: Structures and Cocrystallization of the Cubic Cluster Pd6Cl12 with (E)-Stilbene and with Bis(Benzonitrile)Palladium(II) Dichloride". Inorganic Chemistry. 39 (20): 4555–4559. doi:10.1021/ic0000597.{{cite journal}}: CS1 maint: uses authors parameter (link)