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n.1.(Chem.) A compound of a binary type containing two atoms of iodine; - called also biniodide.
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They form 2-dimensional layered hexagonal structures related to that of cadmium diiodide, in which the metal-chalcogen bonding within the layers is very strong, whilst that between the layers is much weaker (van der Waals interactions) - i.e.
Llavona, Synthesis of (z)-a-chloro-a, b-Unsaturated Esters with Complete Stereoselectivity Promoted by Samarium Diiodide, Tetrahedron lett., 45, 4665 (2004).
The default configurations of triphenylphosphine diiodide (Ph [sub]3 PI[sub]2) and silver trifluoromethanesulfonate (AgOTf) solid-phase extraction (SPE) cartridges were cancelled and 57% hydriodic acid solution was used to accomplish this step instead.
Preliminary trials of bistrimethylammonium decane and pentane diiodide (C10 and C5) in man.