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Your search keyword '"Benítez, Diego"' showing total 3 results
Start Over Author "Benítez, Diego" Journal nature chemistry
3 results on '"Benítez, Diego"'

1. Highly stable tetrathiafulvalene radical dimers in [3]catenanes

Author

Spruell, Jason M., primary, Coskun, Ali, additional, Friedman, Douglas C., additional, Forgan, Ross S., additional, Sarjeant, Amy A., additional, Trabolsi, Ali, additional, Fahrenbach, Albert C., additional, Barin, Gokhan, additional, Paxton, Walter F., additional, Dey, Sanjeev K., additional, Olson, Mark A., additional, Benítez, Diego, additional, Tkatchouk, Ekaterina, additional, Colvin, Michael T., additional, Carmielli, Raanan, additional, Caldwell, Stuart T., additional, Rosair, Georgina M., additional, Hewage, Shanika Gunatilaka, additional, Duclairoir, Florence, additional, Seymour, Jennifer L., additional, Slawin, Alexandra M. Z., additional, Goddard, William A., additional, Wasielewski, Michael R., additional, Cooke, Graeme, additional, and Stoddart, J. Fraser, additional

Published
2010
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2. Radically enhanced molecular recognition

Author

Trabolsi, Ali, primary, Khashab, Niveen, additional, Fahrenbach, Albert C., additional, Friedman, Douglas C., additional, Colvin, Michael T., additional, Cotí, Karla K., additional, Benítez, Diego, additional, Tkatchouk, Ekaterina, additional, Olsen, John-Carl, additional, Belowich, Matthew E., additional, Carmielli, Raanan, additional, Khatib, Hussam A., additional, Goddard, William A., additional, Wasielewski, Michael R., additional, and Stoddart, J. Fraser, additional

Published
2009
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3. Radically enhanced molecular recognition.

Author

Trabolsi, Ali, Khashab, Niveen, Fahrenbach, Albert C., Friedman, Douglas C., Colvin, Michael T., Cotí, Karla K., Benítez, Diego, Tkatchouk, Ekaterina, Olsen, John-Carl, Belowich, Matthew E., Carmielli, Raanan, Khatib, Hussam A., Goddard, William A., Wasielewski, Michael R., and Stoddart, J. Fraser

Subjects
MOLECULES, DIMERS, MONOMERS, CATIONS, OXIDATION, ROTAXANES, ELECTRONS, ORGANIC compounds, ELECTROCHEMICAL analysis
Abstract

The tendency for viologen radical cations to dimerize has been harnessed to establish a recognition motif based on their ability to form extremely strong inclusion complexes with cyclobis(paraquat-p-phenylene) in its diradical dicationic redox state. This previously unreported complex involving three bipyridinium cation radicals increases the versatility of host–guest chemistry, extending its practice beyond the traditional reliance on neutral and charged guests and hosts. In particular, transporting the concept of radical dimerization into the field of mechanically interlocked molecules introduces a higher level of control within molecular switches and machines. Herein, we report that bistable and tristable [2]rotaxanes can be switched by altering electrochemical potentials. In a tristable [2]rotaxane composed of a cyclobis(paraquat-p-phenylene) ring and a dumbbell with tetrathiafulvalene, dioxynaphthalene and bipyridinium recognition sites, the position of the ring can be switched. On oxidation, it moves from the tetrathiafulvalene to the dioxynaphthalene, and on reduction, to the bipyridinium radical cation, provided the ring is also reduced simultaneously to the diradical dication. [ABSTRACT FROM AUTHOR]

Published
2010
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