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Unconventional Kondo effect in redox active single organic macrocyclic transistors.

ABSTRACT: Cyclo[6]- and cyclo[8]pyrrole, two aromatic expanded porphyrins, were studied in a single-molecule transistor (SMT) setup. The analyses of these compounds allowed us to observe an uncommon absence of an even-odd effect in the Kondo resonance in discrete, metal-free organic macrocyclic compounds. The findings from the SMT measurements of these cyclopyrroles were in accord with those from cyclic voltammetry (CV) studies and theoretical analyses. These findings provide support for the notion that SMT measurements could be useful as a tool for the characterization of similar types of aromatic macrocyclic compounds.

SUBMITTER: Lee JT

PROVIDER: S-EPMC3227745 | biostudies-literature | 2011 Dec

REPOSITORIES: biostudies-literature

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Unconventional Kondo effect in redox active single organic macrocyclic transistors.

Lee Jeong Tae JT Chae Dong-Hun DH Ou Zhongping Z Kadish Karl M KM Yao Zhen Z Sessler Jonathan L JL

Journal of the American Chemical Society 20111114 48

Cyclo[6]- and cyclo[8]pyrrole, two aromatic expanded porphyrins, were studied in a single-molecule transistor (SMT) setup. The analyses of these compounds allowed us to observe an uncommon absence of an even-odd effect in the Kondo resonance in discrete, metal-free organic macrocyclic compounds. The findings from the SMT measurements of these cyclopyrroles were in accord with those from cyclic voltammetry (CV) studies and theoretical analyses. These findings provide support for the notion that S ...[more]

PMID: 22032465

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