title: Isolation of electronic from geometric contributions to Bergman cyclization of metalloenediynes.
abstract: Conformationally constrained ethylene-diamine metalloenediyne compounds exhibit alkyne termini separations that are constant and independent of metal center geometry. Ancillary chloride ligand electron donation into the Bergman cyclization reaction coordinate, however, dramatically influences the observed temperatures.
authors.affiliation: Department of Chemistry, Indiana University, Bloomington, IN, USA.
authors.forename: Sibaprasad
authors.initials: S
authors.lastname: Bhattacharyya
authors.forename: Aurora E
authors.initials: AE
authors.lastname: Clark
authors.forename: Maren
authors.initials: M
authors.lastname: Pink
authors.forename: Jeffrey M
authors.initials: JM
authors.lastname: Zaleski
mesh_terms: D003500:Cyclization; D003959:Diamines / Q000737:chemistry*; D004563:Electrochemistry; D005030:Ethylenes / Q000737:chemistry; D008670:Metals / Q000737:chemistry*; D008958:Models, Molecular; D008968:Molecular Conformation
chemical_list: D003959:Diamines; D005030:Ethylenes; D008670:Metals; C036216:ethylene