Luciferin molecules are common luminophores found throughout the biological kingdoms. Here, electrospray ionization and tandem ion mobility spectrometry coupled with laser spectroscopy used to demonstrate that D-luciferin oxyluciferin deprotonated anions can be produced in two isomeric forms, which separated by virtue of their different collision cross sections a buffer gas. The isomers possess...

It was proved by our experiments that on microwave irradiation, the mono- or bidentate phosphorus ligands generally applied in the palladium(II)-catalyzed P-C coupling reaction of aryl bromides and dialkyl phosphites or secondary phosphine oxides may be substituted by the excess of the >P(O)H reagent that exists under a tautomeric equilibrium. Taking into account that the reduction of the palla...

The title compound, C(14)H(11)Cl(2)NO, is a Schiff base which adopts the phenol-imine tautomeric form in the solid state. There are two mol-ecules in the asymmetric unit. Head-to-tail π-π inter-actions [centroid-to-centroid distances of 3.682 (2), 3.708 (2), 3.904 (2) and 3.910 (2) Å] between adjacent mol-ecules produce two symmetry-independent infinite chains running along the b axis.