title: When do interacting atoms form a chemical bond? Spectroscopic measurements and theoretical analyses of dideuteriophenanthrene.
abstract: Don't rewrite the textbooks! Vibrational spectra of a selectively deuterated derivative of phenanthrene indicate that the C4HHC5 interaction in its "bay" area should be interpreted as steric (Pauli) repulsion. These findings and the results of theoretical analysis are in conflict with interpretations that describe this interaction as strongly stabilizing.
authors.affiliation: Westfälische Wilhelms-Universität, Organisch-Chemisches Institut, Corrensstrasse 40, 48149 Münster, Germany. grimmes@uni-muenster.de
authors.forename: Stefan
authors.initials: S
authors.lastname: Grimme
authors.forename: Christian
authors.initials: C
authors.lastname: Mück-Lichtenfeld
authors.forename: Gerhard
authors.initials: G
authors.lastname: Erker
authors.forename: Gerald
authors.initials: G
authors.lastname: Kehr
authors.forename: Huadong
authors.initials: H
authors.lastname: Wang
authors.forename: Helmut
authors.initials: H
authors.lastname: Beckers
authors.forename: Helge
authors.initials: H
authors.lastname: Willner