Unconventional Kondo Effect in Redox Active Single Organic Macrocyclic Transistors

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• 作者：Jeong Tae Lee ; Dong-Hun Chae ; Zhongping Ou ; Karl M. Kadish ; Zhen Yao ; Jonathan L. Sessler
• 刊名：Journal of the American Chemical Society
• 出版年：2011
• 出版时间：December 7, 2011
• 年：2011
• 卷：133
• 期：48
• 页码：19547-19552
• 全文大小：901K
• 年卷期：v.133,no.48(December 7, 2011)
• ISSN：1520-5126

文摘

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鈥搊dd 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.