A Radically Configurable Six-State Compound

被引：141

作者：

Barnes, Jonathan C. ^{[1
,5
,6
]}

Fahrenbach, Albert C. ^{[1
,5
,6
]}

Cao, Dennis ^{[1
,5
,6
]}

Dyar, Scott M. ^{[1
]}

Frasconi, Marco ^{[1
]}

Giesener, Marc A. ^{[1
]}

Benitez, Diego ^{[4
]}

Tkatchouk, Ekaterina ^{[4
]}

Chernyashevskyy, Oleksandr ^{[3
]}

Shin, Weon Ho ^{[5
,6
]}

Li, Hao ^{[1
]}

Sampath, Srinivasan ^{[1
,5
,6
]}

Stern, Charlotte L. ^{[1
]}

Sarjeant, Amy A. ^{[1
]}

Hartlieb, Karel J. ^{[1
]}

Liu, Zhichang ^{[1
]}

Carmieli, Raanan ^{[1
]}

Botros, Youssry Y. ^{[1
,2
,7
,8
]}

Choi, Jang Wook ^{[5
,6
]}

Slawin, Alexandra M. Z. ^{[9
]}

Ketterson, John B. ^{[3
]}

Wasielewski, Michael R. ^{[1
]}

Goddard, William A., III ^{[4
,5
,6
]}

Stoddart, J. Fraser ^{[1
,5
,6
]}

机构：

[1] Northwestern Univ, Dept Chem, Evanston, IL 60208 USA

[2] Northwestern Univ, Dept Mat Sci & Engn, Evanston, IL 60208 USA

[3] Northwestern Univ, Dept Phys, Evanston, IL 60208 USA

[4] CALTECH, Mat & Proc Simulat Ctr, Pasadena, CA 91125 USA

[5] Korea Adv Inst Sci & Technol, NanoCentury KAIST Inst, Taejon 305701, South Korea

[6] Korea Adv Inst Sci & Technol, Grad Sch EEWS WCU, Taejon 305701, South Korea

[7] Intel Labs, Santa Clara, CA 95054 USA

[8] King Abdulaziz City Sci & Technol, Natl Ctr Nano Technol Res, Riyadh 11442, Saudi Arabia

[9] Univ St Andrews, EaStCHEM Sch Chem, St Andrews KY16 9ST, Fife, Scotland

来源：

SCIENCE | 2013年 / 339卷 / 6118期

基金：

美国国家科学基金会; 英国工程与自然科学研究理事会;

关键词：

OXIDATION-REDUCTION; MOLECULAR MATERIALS; ELECTRON-TRANSFER; BUILDING-BLOCKS; REDOX CENTERS; METHYLVIOLOGEN; VIOLOGEN; CATION; INCLUSION; NITROXIDE;

D O I：

10.1126/science.1228429

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Most organic radicals possess short lifetimes and quickly undergo dimerization or oxidation. Here, we report on the synthesis by radical templation of a class of air- and water-stable organic radicals, trapped within a homo[2]catenane composed of two rigid and fixed cyclobis (paraquat-p-phenylene) rings. The highly energetic octacationic homo[2] catenane, which is capable of accepting up to eight electrons, can be configured reversibly, both chemically and electrochemically, between each one of six experimentally accessible redox states (0, 2+, 4+, 6+, 7+, and 8+) from within the total of nine states evaluated by quantum mechanical methods. All six of the observable redox states have been identified by electrochemical techniques, three (4+, 6+, and 7+) have been characterized by x-ray crystallography, four (4+, 6+, 7+, and 8+) by electron paramagnetic resonance spectroscopy, one (7+) by superconducting quantum interference device magnetometry, and one (8+) by nuclear magnetic resonance spectroscopy.

引用

页码：429 / 433

页数：5

共 38 条

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