A half adder based on a photochemically driven [2]rotaxane

Angewandte Chemie - International Edition

Volumn 44, Issue 33, 2005, Pages 5296-5299

  Qu, Da Hui ^a   Wang, Qiao Chun ^a   Tian, He ^a  

^a EAST CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY   (China)

Author keywords

Fluorescence; Isomerization; Molecular logic gates; Photochemistry; Rotaxanes

Indexed keywords

ABSORPTION; FLUORESCENCE; ISOMERIZATION; LOGIC GATES; PHOTOCHEMICAL REACTIONS;

HALF ADDER; MOLECULAR LOGIC GATES; PHOTOISOMERIZATION; ROTAXANES;

ADDERS;

EID: 24044525608     PISSN: 14337851     EISSN: None     Source Type: Journal    
DOI: 10.1002/anie.200501215     Document Type: Article

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59. What station does the macrocycle prefer on the rotaxane: the azobenzene or the stilbene? The energy difference between the two translational isomers may determine the preferential location of the ring on one of the two sites. Fast shuttling of the ring between the two sites could make the determination of the population of the two translational isomers difficult, but if the entropy terms are sufficiently different then the relative binding affinity of the macrocycle for the two stations could be reversed by lowering the temperature.