Anion Change as a Tool for Structure Design:Syntheses and Crystal Structures of Copper(I)Trifluoracetate and Tetrafluoroborate with 3-[(2-morpholino-4-oxo-4,5-dihydro-1,3-thiazol-5-ylidene)methyl-phenoxy]propene

摘要

By alternating-current electrochemical synthesis crystals of two new copper(I)coordination compounds of Cu(CF3COO)C_(17)H_(18)N2O3S(I)and[Cu(C_(17)H_(18)N2O3S)2]BF4(II)composition have been obtained and structurally investigated.In the crystal structure of I the ligand moiety acts as a bridge,being coordinated to one metal center through the C=C-bond of allyl group,and to another Cu atom by nitrogen atom of thiazole ring.Due to such a bridging function dimers of[Cu(CF3COO)C_(17)H_(18)N2O3S]2 composition appear.The trigonal-planar copper atom coordination sphere includes,besides the nitrogen atom and C=C bond,also one oxygen atom from trifluoroacetate anion.In the structure II two nitrogen atoms from thiazole rings of two ligand moieties form linear surrounding of copper atom resulting in a formation of[Cu(C_(17)H_(18)N2O3S)2]~+ complex cations.The[BF4]~-anion is completely disordered.Mentioned dimers in I and complex cations and[BF4]~-anions in II are associated by weak interactions only.