Structure of the copper tripodal Schiff base complex {tris[4-(2-thienyl)-3-aza-κN-3-butenyl]amine-κN}copper(I) tetrafluoroborate

摘要

The copper Schiff base complex {tris[4-(2-thienyl)-3-\udaza-~N-3-butenyl]amine-~N} copper(I) tetrafluoroborate,\ud[Cu{N(CTHgNS)3 }]+.BF4- (I), crystallizes with the cation\udresiding in a general position and two disordered tetrafluoroborate\udanions residing on twofold axes. The cation\udhas approximate threefold symmetry and the copper(I)\udgeometry is distorted trigonal pyramidal with coordination\udfrom the apical tertiary amine N atom and the three\udazomethine N atoms but not from the S atoms of the three\udthiophene moieties. The principal bond lengths are Cu--\udNapical 2.300 (5) ,~ and mean Cu--Nequatorial 1.994 (4) A,,\udwith a mean Cu-..S contact of 3.270 (2) A.