| http://www.w3.org/ns/prov#value | - For example, it may be present as the free metal (e.g., Pt or Pd metal), as a mixture of metals (e.g., Pd/Au, Pd/Pt mixture or alloy, or the like), or it may be part of a complex that incorporates the metal or metals and other ligands (e.g., PtCl2, Pd(NH3)4Cl2, or tetrakis(triphenylphosphine)palladium(0)).
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