STRUCTURE OF A COPPER(I) COMPLEX OF A TRIPODAL SCHIFF-BASE LIGAND, (TRIS-[4-(2-THIENYL)-3-AZA-3-BUTENYL]AMINE)COPPER(I) TRIIODIDE CHLOROFORM SOLVATE

[{(SC4H3)CHNCH2CH2}3NCu][I3].CHCl3, [Cu(C21H24N4S3)]I3.CHCl3, M(r) = 992.27, monoclinic, C2/c, a = 31.869 (11), b = 11.425 (2), c = 18.215 (4) angstrom, beta = 96.56 (2)-degrees, V = 6589 (5) angstrom3, Z = 8, D(x) = 2.00 g cm-3, F(000) = 3776, lambda(Mo K alpha) = 0.71073 angstrom, mu = 39.0 cm-1, R = 0.027 for 5020 observed reflections at 294 K. The copper(I) geometry is trigonal pyramidal, with coordination occurring from the apical tertiary amine N atom and the three azomethine N atoms of the tripodal Schiff-base ligand but not from the three thiophene moieties. Principal bond lengths and angles are Cu-N(ap.) 2.275 (3), Cu-N(eq.) 2.004 (3) angstrom (av.) and N(ap.)-Cu-N(eq.) 82.5 (1)-degrees (av.), N(eq.)-Cu-N(eq.) 118.3 (1)-degrees (av.); the Cu...S contacts are 3.162 (1), 3.268 (1) and 3.383 (1) angstrom.