reversible mechanochromic luminescence is cool

March 4, 2009 at 5:30 pm | | literature

The recent JACS Beta Image Challenge has a really cool video involved:

mechanochromic-luminescence

(Click the image to watch a movie!)

The crystalline form is quenched and blue-shifted. But grinding or scraping the powder breaks apart the crystal and the separated chromophores fluoresce in the green. Neateo.

You can check out the details in the original paper: Ito, et al. JACS 2008, 130, 10044-10045.  I’m not thrilled with the quality of some of the spectra (comeon JACS!), but a fun paper, nonetheless.

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  1. […] Sam covered one of the first entrants to reversible mechanochromic luminescence a year ago: reversible mechanochromic luminescence is cool […]

    Pingback by Chemistry Blog » Blog Archive » This Message Will Self-Heal in 3, 2, 1… — February 12, 2010 #

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