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A Radically Configurable Six-State Compound

2013; American Association for the Advancement of Science; Volume: 339; Issue: 6118 Linguagem: Inglês

10.1126/science.1228429

1095-9203

Jonathan C. Barnes, Albert C. Fahrenbach, Dennis Cao, Scott M. Dyar, Marco Frasconi, Marc A. Giesener, Diego Benítez, E. Tkatchouk, O. Chernyashevskyy, Weon Ho Shin, Hao Li, Srinivasan Sampath, Charlotte L. Stern, Amy A. Sarjeant, Karel J. Hartlieb, Zhichang Liu, Raanan Carmieli, Youssry Y. Botros, Jang Wook Choi, Alexandra M. Z. Slawin, J. B. Ketterson, Michael R. Wasielewski, William A. Goddard, J. Fraser Stoddart,

Advanced Chemical Physics Studies

Radically Organic Metals such as manganese are relatively stable over a wide range of oxidation states. In contrast, purely organic compounds are rarely susceptible to incremental addition or removal of electrons without accompanying fragmentation or coupling reactions. Barnes et al. (p. 429 ; see the Perspective by Benniston ) report a catenane (a compound comprising interlocked rings) in which the topological structure stabilizes six different states that successively differ by the presence or absence of one or two electrons in the framework. The hepta-oxidized state proved remarkably resilient to oxygen exposure.