期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 131, 期 46, 页码 16644-+出版社
AMER CHEMICAL SOC
DOI: 10.1021/ja907434x
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资金
- Natural Sciences and Engineering Research Council (NSERC) of Canada
- Canada Research Chairs Program
- University of British Columbia
- Simon Fraser University
Coordinating two dithienylethenes to a platinum center results in the reversible ring closure of both photochromic units in a model for a photoresponsive pi-conjugated polymer. This system demonstrates how metal-sensitized photochemistry, from a triplet excited state, circumvents the problems associated with other multicomponent photochromic systems, where significant electronic interactions in the ground state and singlet excited state prevent full photoswitching. Changes in charge-transfer behavior based upon conversion of both dithienylethenes to their ring-closed forms illustrate how photomodulation of conductivity through a conjugated polymer might be achieved using Pt-bis(acetylide)s.
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