STRUCTURE OF THE COPPER TRIPODAL SCHIFF-BASE COMPLEX L)-3-AZA-KAPPA-N-3-BUTENYL]AMINE-KAPPA-N)COPPER(I) TETRAFLUOROBORATE

The copper Schiff base complex nyl)-3-aza-kappaN-3-butenyl]amine-kappa N}copper(I) tetrafluoroborate, [Cu{N(C7HgNS)3}]+.BF4- (I), crystallize s with the cation residing in a general position and two disordered te trafluoroborate anions residing on twofold axes. The cation has approx imate threefold symmetry and the copper(I) geometry is distorted trigo nal pyramidal with coordination from the apical tertiary amine N atom and the three azomethine N atoms but not from the S atoms of the three thiophene moieties. The principal bond lengths are Cu-N(apical) 2.300 (5) angstrom and mean Cu-N(equatorial) 1.994 (4) angstrom, with a mea n Cu ... S contact of 3.270 (2) angstrom.