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Six kinds of benzo-15-crown-5 (L) adducts having the stoichiometric formula M(Pic) 2 . L . xH 2 O (M=Mn, Cu, x=2; M=Co, Ni, Zn, Cd, x=4; Pic means picrate anion) have been synthesized and characterized by EA, IR, UV and molar conductance. The X-ray crystal structural analysis of the benzo-15-crown-5 adduct with hydrated copper(II) picrate revealed that the benzo-15-crown-5 molecule...
Zirconacyclopentadienes, zirconacyclopentenes and zirconacyclopentanes were readily transferred to the corresponding stannacycles in the presence of a catalytic or a stoichiometric amount of CuCl. Without CuCl, the above transfer did not proceed at all or proceeded very slowly. A convenient one-pot procedure for the preparation of spiro stannacyclopentadiene compounds was also developed with CuCl.
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