Reversible switching of the first hyperpolarisability of an NLO-active donor-acceptor molecule based on redox interconversion of the octamethylferrocene donor unit
M. Malaun et al., Reversible switching of the first hyperpolarisability of an NLO-active donor-acceptor molecule based on redox interconversion of the octamethylferrocene donor unit, CHEM COMMUN, (01), 2001, pp. 49-50
Compound 1, containing an octamethylferrocene donor linked to a nitrothioph
ene acceptor via an ethenyl linker, shows a static first hyperpolarisabilit
y beta (0) of 95(+/- 10) x 10(-30) esu, which is reduced to 10(+/-2) x 10(-
30) esu on oxidation of the octamethylferrocene unit; this provides for a s
imple redox-based switching of the NLO characteristics of the compound.