Organic Selenium Compounds. XVII. Reactions of Carbon Diselenide with Active Methylene Compounds.

Synthesis and Characterisation of the First Cyanodiselenoimidocarbonate [C2N2Se2]2− Complexes

“…[30] The original synthesis involved the dropwise addition of potassium hydroxide in water to cyanamide and carbon diselenide in dioxane at 0°C. Our synthesis is essentially the same [Equation (1)], except the reaction was carried out in ethanol and potassium ethoxide was used in place of potassium hydroxide to prevent the generation of water during the reaction.…”

Bis(tetra-n-butylammonium) Bis(μ-1,1-dicyanoethene-2,2-diselenolato)dithallate(I) Acetone Solvate, [(C4H9)4N]2[Tl2{Se2C=C(CN)2}2].2(CH3)2CO

“…The title compound was prepared by adding an aqueous solution of T1NO3 to a stirred solution of K2i-mns [obtained by using a modification of the procedure reported by Jensen & Henriksen (1970)] and an excess of BuaNBr in acetonitrile and then recrystallized from acetone. The crystal was embedded in alcoholic adhesive to prevent loss of incorporated solvent acetone (proven by element analysis) during diffractometer measurements.…”

Structure of tetrakis(tetraethylammonium) hexakis(1,1-dicyanoethylene-2,2-diselenolato-Se,Se')octacuprate

“…was prepared by adding an aqueous solution of Et4NBr and K2(i-mns) (Jensen & Henriksen, 1970) to a solution of [Cu(CH3CN)4]C104 in acetonitrile at * To whom correspondence should be addressed. 0108-2701/91 / 102041-03503.00 room temperature.…”