DOI: 10.1002/mrc.5118

A static and dynamic NMR study of 10‐hydrazino‐BODIPY

10‐Hydrazino‐BODIPY, BoNHNH2, presents slow rotation about the C10–NH bond that results in anisochronous ¹H and ¹³C NMR signals. The assignment of the different signals has been made using traditional two‐dimensional methods as well as spin–spin coupling constants and confirmed by DFT calculations (B3LYP) using the 6‐311++G(d,p) basis set. The rotational barrier has been determined in three pairs of proton signals and compared with the calculated barrier.