/**
  * Construct an instance of StructureResonanceGenerator. Default restrictions are initiated.
  *
  * @param lookingSymmetry Specify if the resonance generation is based looking at the symmetry
  * @see #setDefaultReactions()
  */
 public StructureResonanceGenerator(boolean lookingSymmetry) {
   logger.info("Initiate StructureResonanceGenerator");
   this.lookingSymmetry = lookingSymmetry;
   setDefaultReactions();
 }