Chemical Physics publishes experimental and theoretical papers on all aspects of chemical physics. Experimental papers are brought into relation with theory, and theoretical papers demonstrate their relation to present or future experiments. More specifically, subject matter in the fields of spectroscopy and molecular structure, interacting systems, relaxation phenomena, fundamental problems in molecular reactivity, molecular quantum theory and statistical mechanics constitute the main areas of interest for this journal. In addition to regular issues, Chemical Physics publishes thematic issues containing invited articles by specialists in the relevant field.