Lewis-base adducts of group 11 metal(I) compounds. XLIV : Synthesis and conformational systematics of 1:1 copper(I) halide/nitrogen-base adducts as [(N-base)CuX2Cu(N-base)] dimers (X = Cl, Br, I) and [(N-base)CuX] monomers (X = Cl, Br)
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A complete array of [LcuX2CuL] dimers for the system CuX/monodentate nitrogen base, L, all X = Cl, Br, I, has been synthesized and structurally characterized for the highly hindered pyridine base L 蠱,2,3,4,5,6,7,8-octahydroacridine, enabling comparison of stereochemical parameters with previously characterized [L2CuX2CuL2] arrays (L monodentate ). With L-2,2,6,6-tetramethylpiperidine, a similar dimer is also obtained with copper(I) iodide, but with the chloride and bromide adducts linear monomers [ LCuX ] have been obtained, the first to be structurally characterized for the copper(I) halide/nitrogen base system. In the latter Cu-Cl, Br are 2.087(2) and 2.216(2), 2.202(2) A, Cu-N being 1.923(3) and 1.931(9), 1.9337) Š.
Australian Journal of Chemistry