Department of Chemistry and Institute for Applied Chemistry, Hallym University, Chuncheon, Gangwon-do 200-702, Korea.
J Am Chem Soc. 2011 Dec 7;133(48):19547-52. doi: 10.1021/ja208799q. Epub 2011 Nov 14.
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.
在单分子晶体管 (SMT) 装置中研究了两个芳香扩展卟啉，即环[6]-和环[8]吡咯。对这些化合物的分析使我们能够观察到在离散的无金属有机大环化合物中，Kondo 共振中罕见的奇偶效应缺失。SMT 测量这些环吡咯的结果与循环伏安法 (CV) 研究和理论分析的结果一致。这些发现支持了这样一种观点，即 SMT 测量可以作为一种有用的工具，用于表征类似类型的芳香大环化合物。
