These deviations may be manifested in the form of an accelerating instead of a decelerating wave.•
Under such circumstances, the two donor atoms on the same chelate molecule coordinate with different metal atoms rather than with one; thus, a polymeric chain may result rather than [or (and) not] a ring structure.•
Since the various types of microscope supply different kinds of information, they complement each other rather than competing.•
That means that the laser beam is elliptical instead of round.•
The resulting F-band is dependent upon the particular alkali halide used, not upon the alkali metal vapour.