title: Preface for the forum on insights into spectroscopy and reactivity from electronic structure theory.
authors.affiliation: Department of Chemistry, Supercomputing Institute, and Chemical Theory Center, University of Minnesota , Minneapolis, Minnesota 55455-0431, United States.
authors.forename: Laura
authors.initials: L
authors.lastname: Gagliardi
authors.forename: Edward I
authors.initials: EI
authors.lastname: Solomon