common sources of ion of iodide anion vs copper(II) cation

iodide anion copper(II) cation | common sources of ion

iodide anion | trimethyloxosulfonium iodide (1 eq) | trimethylsulfonium iodide (1 eq) | tridodecylmethylammonium iodide (1 eq) | tetrapropylammonium iodide (1 eq) | tetraphenylphosphonium iodide (1 eq) | tetramethylammonium iodide (1 eq) | tetraethylammonium iodide (1 eq) | tetra-N-butylammonium iodide (1 eq) | tantalum(V) iodide (5 eq) | strontium iodide (2 eq) copper(II) cation | propyl astra blue (1 eq) | potassium cyanocuprate(I) (1 eq) | copper iron oxide (1 eq) | copper(II) tartrate hydrate (1 eq) | copper(II) sulfate pentahydrate (1 eq) | copper(II) sulfate hydrate (1 eq) | copper(II) pyrophosphate hydrate (2 eq) | copper(II) nitrate hydrate (2 eq) | copper(II) niobate (1 eq) | copper(II) molybdate (1 eq)