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Interaction of porphyrins with CdTe quantum dots

Xing Zhang1, Zhongxin Liu, Lun Ma

  • 1Department of Physics, University of Texas at Arlington, Arlington, TX 76019, USA.

Nanotechnology
|March 25, 2011
PubMed

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The absorption of UV–visible light by conjugated systems causes the promotion of an electron from the ground state to the excited state. Consequently, photochemical electrocyclic reactions proceed via the excited-state HOMO rather than the ground-state HOMO. Since the ground- and excited-state HOMOs have different symmetries, the stereochemical outcome of electrocyclic reactions depends on the mode of activation; i.e., thermal or photochemical.
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