Energy transfer in ternary macrocycle complexes

Teresa Mako, Mindy Levine

Research output: Contribution to journalConference articlepeer-review


Certain commercially available macrocycles, such as gamma-cyclodextrin and [8]-cucurbuturil, are able to form three-component complexes with two small-molecule guests. These ternary complexes have been exploited for catalytic applications. Energy transfer between the two small-molecule guests has rarely been investigated, although efficient energy transfer could be used in a variety of sensing applications. Reported herein is the generation of ternary complexes with gamma cyclodextrin, anthracene, and a series of near-infrared emitting squaraine dyes. These ternary complexes demonstrate efficient fluorescence-based energy transfer. Exciting the anthracene at 350 nm results in efficient energy transfer to and emission from the squaraine molecules at approximately 700 nm. Without the gamma-cyclodextrin, no energy transfer is observed. These results have substantial potential applications, for example, in the detection of explosives via ternary-complex formation and energy transfer.

Original languageEnglish
JournalACS National Meeting Book of Abstracts
StatePublished - 2011
Externally publishedYes
Event242nd ACS National Meeting and Exposition - Denver, CO, United States
Duration: 28 Aug 20111 Sep 2011


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