First Proof of di‐, tri‐, and all‐cis‐Conformations in Sterically Hindered Trimethinecyanines (Carbocyanines) of the Indoline and Benzothiazole Series

Abstract
The complete manuscript of this communication appears in: Angew. Chem. Suppl. 1983, 1147. DOI:10.1002/anie.198311470