nonplanar, ruffled structure that had been suspected for the previously reported [2,3-bismethylenethiomorpholinochlorinato]nickel(II) complex was confirmed by determination of its crystalstructure. Treatment of this thiomorpholinochlorin with acid converts the exocyclic double bonds to direct links to the ortho-positions of both adjacent meso-phenyl groups. The crystalstructure of this product indicated