title: Hexahapto-lanthanide interconnects between the conjugated surfaces of single-walled carbon nanotubes.
abstract: We report the response of the electrical conductivity of semiconducting single-walled carbon nanotube (SWNT) thin films on exposure to metal vapors of the early lanthanides under high vacuum conditions. We attribute the strongly enhanced conductivities observed on deposition of samarium and europium to charge transfer from the metals to the SWNT backbone, thereby leading to the first examples of mixed covalent-ionic bis-hexahapto bonds [(η(6)-SWNT)M(η(6)-SWNT), where M = Sm, Eu].
authors.affiliation: Department of Chemistry, University of California, Riverside, California 92521, USA. haddon@ucr.edu.
authors.forename: Matthew L
authors.initials: ML
authors.lastname: Moser
authors.forename: Xiaojuan
authors.initials: X
authors.lastname: Tian
authors.forename: Aron
authors.initials: A
authors.lastname: Pekker
authors.forename: Santanu
authors.initials: S
authors.lastname: Sarkar
authors.forename: Elena
authors.initials: E
authors.lastname: Bekyarova
authors.forename: Mikhail E
authors.initials: ME
authors.lastname: Itkis
authors.forename: Robert C
authors.initials: RC
authors.lastname: Haddon