In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called Synthesis and Photophysical Properties of Chalcophenes-Embedded Cycloparaphenylenes, published in 2019-05-03, which mentions a compound: 12080-32-9, mainly applied to chalcophenes cycloparaphenylene photophys property, Application In Synthesis of Dichloro(1,5-cyclooctadiene)platinum(II).
[N]Cyclo-4,4′-biphenylene-2”,5”-thienylenes ([n]CP2T, n = 3, 4), [n]cyclo-4,4′-biphenyl-ene-2”,5”-selenylenes ([n]CP2S, n = 3, 4), and [n]cyclo-4,4′-biphenylene-2”,5”-ethylenedioxythienylenes ([n]CP2E, n = 3) were synthesized in few steps with high overall yields. These nanorings were prepared through platinum-mediated cyclooligomerization of 2,5-bis(4-pinacolboryl-phenyl)chalcophenes. The X-ray crystallog. anal. of [4]CP2S showed that it employed a cone-shaped conformation in the solid state. Furthermore, their photophys. properties were investigated by using the UV-vis absorption spectra and fluorescence spectra. In particular, selenophene and 3,4-ethylenedioxythiophene-embedded cycloparaphenylenes, which showed significant red shifts in the UV-vis absorption and fluorescence spectra compared with thiophene analogs, are reported here for the first time.
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