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Core and Double Bond Functionalization of Cyclopentadithiophene- Phosphaalkenes

The
heterofulvenoid cyclopentadithiophene-phosphaalkene is a versatilie building
block for opto-electronic tuning with donor and acceptor moieties. Both the
annulated thienyl rings and the phosphaalkene bond can be functionalised using
a variety of chemical transfomations, e.g. forming C-C, C-E (E = Si, Br) bonds
or oxidation and metal coordination, respectively. Solid-state structures,
optical and electronic properties are probed theoretically and experimentally,
illustrating the opto-electronic tailoring opportunities at this motif.