9,10-Dithioanthracene
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Anthracene-9,10-dithiol is an organosulfur compound with the formula . It is one of several isomer of anthracene with two thiol groups.
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Anthracene-9,10-dithiol is an organosulfur compound with the formula . It is one of several isomer of anthracene with two thiol groups.
In 2004, DTA molecules were demonstrated to be able to "walk" in a straight line (reportedly a first) on a metal surface by, in effect, mimicking the bipedal motion of a human being. The sulfur-bearing functional groups on either side (referred to as "linkers") serve as the molecule's "feet". When the compound is heated on a flat copper surface, the linkers raise up, alternating from side to side, and propel the molecule forward.
Excerpted from Wikipedia’s “9,10-Dithioanthracene” article, available under the CC BY-SA 4.0 licence.