Abstract
The Zn atom in the title acetonitrile solvate, [Zn(C
34
H
42
N
4
O
2
)(C
2
H
6
OS)]·CH
3
CN, exists in a distorted square-pyramidal geometry with the basal plane defined by the N
2
O
2
atoms of the tetradentate Schiff base and with the dimethyl sulfoxide O atom in the apical position. The tetradentate mode of coordination of the Schiff base ligand leads to a five-membered ZnN
2
C
2
chelate ring which adopts an envelope conformation with the Zn atom at the flap, and two six-membered ZnOC
4
N chelate rings, one of which is approximately planar (r.m.s. deviation = 0.054 Å) but the other has significant puckering (r.m.s. deviation = 0.203 Å).