Crystal Structure of N-Methylcamphorimide and Its Monothiocarbonyl and Monoselenocarbonyl Derivatives

Crystal structures of N-methylcamphorimide and its monothio and monoseleno analogues show pronounced non-planarity of the chromophore moieties. The observed degree of the chromophore deformation decreases on going from the N-methylcamphorimide through its thiocarbonyl to the selenocarbonyl analogue.